--- a/Cargo.lock
+++ b/Cargo.lock
@@ -11,15 +11,6 @@
 ]
 
 [[package]]
-name = "addr2line"
-version = "0.12.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a49806b9dadc843c61e7c97e72490ad7f7220ae249012fbda9ad0609457c0543"
-dependencies = [
- "gimli 0.21.0",
-]
-
-[[package]]
 name = "adler32"
 version = "1.0.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -74,11 +65,23 @@
 
 [[package]]
 name = "anyhow"
-version = "1.0.31"
+version = "1.0.28"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "85bb70cc08ec97ca5450e6eba421deeea5f172c0fc61f78b5357b2a8e8be195f"
+checksum = "d9a60d744a80c30fcb657dfe2c1b22bcb3e814c1a1e3674f32bf5820b570fbff"
 
 [[package]]
+name = "app_dirs"
+version = "1.2.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e73a24bad9bd6a94d6395382a6c69fe071708ae4409f763c5475e14ee896313d"
+dependencies = [
+ "ole32-sys",
+ "shell32-sys",
+ "winapi 0.2.8",
+ "xdg",
+]
+
+[[package]]
 name = "approx"
 version = "0.3.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -89,9 +92,9 @@
 
 [[package]]
 name = "arc-swap"
-version = "0.4.7"
+version = "0.4.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4d25d88fd6b8041580a654f9d0c581a047baee2b3efee13275f2fc392fc75034"
+checksum = "d663a8e9a99154b5fb793032533f6328da35e23aac63d5c152279aa8ba356825"
 
 [[package]]
 name = "arrayref"
@@ -129,8 +132,8 @@
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "0d0864d84b8e07b145449be9a8537db86bf9de5ce03b913214694643b4743502"
 dependencies = [
- "quote 1.0.7",
- "syn 1.0.31",
+ "quote 1.0.3",
+ "syn 1.0.17",
 ]
 
 [[package]]
@@ -181,7 +184,7 @@
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "95fd83426b89b034bf4e9ceb9c533c2f2386b813fd3dcae0a425ec6f1837d78a"
 dependencies = [
- "futures 0.3.5",
+ "futures 0.3.4",
  "rustls",
  "webpki",
  "webpki-roots 0.19.0",
@@ -212,18 +215,27 @@
 
 [[package]]
 name = "backtrace"
-version = "0.3.48"
+version = "0.3.46"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0df2f85c8a2abbe3b7d7e748052fdd9b76a0458fdeb16ad4223f5eca78c7c130"
+checksum = "b1e692897359247cc6bb902933361652380af0f1b7651ae5c5013407f30e109e"
 dependencies = [
- "addr2line",
+ "backtrace-sys",
  "cfg-if",
  "libc",
- "object 0.19.0",
  "rustc-demangle",
 ]
 
 [[package]]
+name = "backtrace-sys"
+version = "0.1.35"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7de8aba10a69c8e8d7622c5710229485ec32e9d55fdad160ea559c086fdcd118"
+dependencies = [
+ "cc",
+ "libc",
+]
+
+[[package]]
 name = "base58"
 version = "0.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -234,28 +246,12 @@
 version = "0.11.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "b41b7ea54a0c9d92199de89e20e58d49f02f8e699814ef3fdf266f6f748d15c7"
-
-[[package]]
-name = "base64"
-version = "0.12.3"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3441f0f7b02788e948e47f457ca01f1d7e6d92c693bc132c22b087d3141c03ff"
 
 [[package]]
-name = "bincode"
-version = "1.3.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f30d3a39baa26f9651f17b375061f3233dde33424a8b72b0dbe93a68a0bc896d"
-dependencies = [
- "byteorder",
- "serde",
-]
-
-[[package]]
 name = "bindgen"
-version = "0.53.3"
+version = "0.53.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c72a978d268b1d70b0e963217e60fdabd9523a941457a6c42a7315d15c7e89e5"
+checksum = "6bb26d6a69a335b8cb0e7c7e9775cd5666611dc50a37177c3f2cedcfc040e8c8"
 dependencies = [
  "bitflags",
  "cexpr",
@@ -268,7 +264,7 @@
  "log",
  "peeking_take_while",
  "proc-macro2",
- "quote 1.0.7",
+ "quote 1.0.3",
  "regex",
  "rustc-hash",
  "shlex",
@@ -378,24 +374,24 @@
 
 [[package]]
 name = "bs58"
-version = "0.3.1"
+version = "0.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "476e9cd489f9e121e02ffa6014a8ef220ecb15c05ed23fc34cca13925dc283fb"
+checksum = "b170cd256a3f9fa6b9edae3e44a7dfdfc77e8124dbc3e2612d75f9c3e2396dae"
 
 [[package]]
 name = "bstr"
-version = "0.2.13"
+version = "0.2.12"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "31accafdb70df7871592c058eca3985b71104e15ac32f64706022c58867da931"
+checksum = "2889e6d50f394968c8bf4240dc3f2a7eb4680844d27308f798229ac9d4725f41"
 dependencies = [
  "memchr",
 ]
 
 [[package]]
 name = "bumpalo"
-version = "3.4.0"
+version = "3.2.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2e8c087f005730276d1096a652e92a8bacee2e2472bcc9715a74d2bec38b5820"
+checksum = "12ae9db68ad7fac5fe51304d20f016c911539251075a214f8e663babefa35187"
 
 [[package]]
 name = "byte-slice-cast"
@@ -440,9 +436,9 @@
 
 [[package]]
 name = "cc"
-version = "1.0.54"
+version = "1.0.50"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7bbb73db36c1246e9034e307d0fba23f9a2e251faa47ade70c1bd252220c8311"
+checksum = "95e28fa049fda1c330bcf9d723be7663a899c4679724b34c81e9f5a326aab8cd"
 dependencies = [
  "jobserver",
 ]
@@ -495,9 +491,9 @@
 
 [[package]]
 name = "clap"
-version = "2.33.1"
+version = "2.33.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "bdfa80d47f954d53a35a64987ca1422f495b8d6483c0fe9f7117b36c2a792129"
+checksum = "5067f5bb2d80ef5d68b4c87db81601f0b75bca627bc2ef76b141d7b846a3c6d9"
 dependencies = [
  "ansi_term 0.11.0",
  "atty",
@@ -510,9 +506,9 @@
 
 [[package]]
 name = "clear_on_drop"
-version = "0.2.4"
+version = "0.2.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c9cc5db465b294c3fa986d5bbb0f3017cd850bff6dd6c52f9ccff8b4d21b7b08"
+checksum = "97276801e127ffb46b66ce23f35cc96bd454fa311294bced4bbace7baa8b1d17"
 dependencies = [
  "cc",
 ]
@@ -569,98 +565,6 @@
 checksum = "b3a71ab494c0b5b860bdc8407ae08978052417070c2ced38573a9157ad75b8ac"
 
 [[package]]
-name = "cranelift-bforest"
-version = "0.63.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d4425bb6c3f3d2f581c650f1a1fdd3196a975490149cf59bea9d34c3bea79eda"
-dependencies = [
- "cranelift-entity",
-]
-
-[[package]]
-name = "cranelift-codegen"
-version = "0.63.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d166b289fd30062ee6de86284750fc3fe5d037c6b864b3326ce153239b0626e1"
-dependencies = [
- "byteorder",
- "cranelift-bforest",
- "cranelift-codegen-meta",
- "cranelift-codegen-shared",
- "cranelift-entity",
- "gimli 0.20.0",
- "log",
- "regalloc",
- "serde",
- "smallvec 1.4.0",
- "target-lexicon",
- "thiserror",
-]
-
-[[package]]
-name = "cranelift-codegen-meta"
-version = "0.63.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "02c9fb2306a36d41c5facd4bf3400bc6c157185c43a96eaaa503471c34c5144b"
-dependencies = [
- "cranelift-codegen-shared",
- "cranelift-entity",
-]
-
-[[package]]
-name = "cranelift-codegen-shared"
-version = "0.63.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "44e0cfe9b1f97d9f836bca551618106c7d53b93b579029ecd38e73daa7eb689e"
-
-[[package]]
-name = "cranelift-entity"
-version = "0.63.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "926a73c432e5ba9c891171ff50b75e7d992cd76cd271f0a0a0ba199138077472"
-dependencies = [
- "serde",
-]
-
-[[package]]
-name = "cranelift-frontend"
-version = "0.63.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e45f82e3446dd1ebb8c2c2f6a6b0e6cd6cd52965c7e5f7b1b35e9a9ace31ccde"
-dependencies = [
- "cranelift-codegen",
- "log",
- "smallvec 1.4.0",
- "target-lexicon",
-]
-
-[[package]]
-name = "cranelift-native"
-version = "0.63.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "488b5d481bb0996a143e55a9d1739ef425efa20d4a5e5e98c859a8573c9ead9a"
-dependencies = [
- "cranelift-codegen",
- "raw-cpuid",
- "target-lexicon",
-]
-
-[[package]]
-name = "cranelift-wasm"
-version = "0.63.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "00aa8dde71fd9fdb1958e7b0ef8f524c1560e2c6165e4ea54bc302b40551c161"
-dependencies = [
- "cranelift-codegen",
- "cranelift-entity",
- "cranelift-frontend",
- "log",
- "serde",
- "thiserror",
- "wasmparser 0.51.4",
-]
-
-[[package]]
 name = "crc32fast"
 version = "1.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -707,9 +611,9 @@
 
 [[package]]
 name = "crossbeam-queue"
-version = "0.2.2"
+version = "0.2.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ab6bffe714b6bb07e42f201352c34f51fefd355ace793f9e638ebd52d23f98d2"
+checksum = "c695eeca1e7173472a32221542ae469b3e9aac3a4fc81f7696bcad82029493db"
 dependencies = [
  "cfg-if",
  "crossbeam-utils",
@@ -753,32 +657,32 @@
 
 [[package]]
 name = "curve25519-dalek"
-version = "2.1.0"
+version = "2.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5d85653f070353a16313d0046f173f70d1aadd5b42600a14de626f0dfb3473a5"
+checksum = "26778518a7f6cffa1d25a44b602b62b979bd88adb9e99ffec546998cf3404839"
 dependencies = [
  "byteorder",
  "digest",
  "rand_core 0.5.1",
- "subtle 2.2.3",
+ "subtle 2.2.2",
  "zeroize",
 ]
 
 [[package]]
 name = "data-encoding"
-version = "2.2.1"
+version = "2.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "72aa14c04dfae8dd7d8a2b1cb7ca2152618cd01336dbfe704b8dcbf8d41dbd69"
+checksum = "11c0346158a19b3627234e15596f5e465c360fcdb97d817bcb255e0510f5a788"
 
 [[package]]
 name = "derive_more"
-version = "0.99.7"
+version = "0.99.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2127768764f1556535c01b5326ef94bd60ff08dcfbdc544d53e69ed155610f5d"
+checksum = "e2323f3f47db9a0e77ce7a300605d8d2098597fc451ed1a97bb1f6411bb550a7"
 dependencies = [
  "proc-macro2",
- "quote 1.0.7",
- "syn 1.0.31",
+ "quote 1.0.3",
+ "syn 1.0.17",
 ]
 
 [[package]]
@@ -788,30 +692,9 @@
 checksum = "f3d0c8c8752312f9713efd397ff63acb9f85585afbf179282e720e7704954dd5"
 dependencies = [
  "generic-array",
-]
-
-[[package]]
-name = "directories"
-version = "2.0.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "551a778172a450d7fc12e629ca3b0428d00f6afa9a43da1b630d54604e97371c"
-dependencies = [
- "cfg-if",
- "dirs-sys",
 ]
 
 [[package]]
-name = "dirs-sys"
-version = "0.3.5"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8e93d7f5705de3e49895a2b5e0b8855a1c27f080192ae9c32a6432d50741a57a"
-dependencies = [
- "libc",
- "redox_users",
- "winapi 0.3.8",
-]
-
-[[package]]
 name = "dns-parser"
 version = "0.8.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -885,24 +768,30 @@
 ]
 
 [[package]]
-name = "errno"
-version = "0.2.5"
+name = "ethbloom"
+version = "0.9.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b480f641ccf0faf324e20c1d3e53d81b7484c698b42ea677f6907ae4db195371"
+checksum = "9e7abcddbdd5db30aeed4deb586adc4824e6c247e2f7238d1187f752893f096b"
 dependencies = [
- "errno-dragonfly",
- "libc",
- "winapi 0.3.8",
+ "crunchy",
+ "fixed-hash",
+ "impl-rlp",
+ "impl-serde 0.3.0",
+ "tiny-keccak",
 ]
 
 [[package]]
-name = "errno-dragonfly"
-version = "0.1.1"
+name = "ethereum-types"
+version = "0.9.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "14ca354e36190500e1e1fb267c647932382b54053c50b14970856c0b00a35067"
+checksum = "964c23cdee0ca07d5be2a628b46d5c11a2134ce554a8c16d8dbc2db647e4fd4d"
 dependencies = [
- "gcc",
- "libc",
+ "ethbloom",
+ "fixed-hash",
+ "impl-rlp",
+ "impl-serde 0.3.0",
+ "primitive-types",
+ "uint",
 ]
 
 [[package]]
@@ -911,29 +800,14 @@
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "e43f2f1833d64e33f15592464d6fdd70f349dda7b1a53088eb83cd94014008c5"
 dependencies = [
- "futures 0.3.5",
-]
-
-[[package]]
-name = "faerie"
-version = "0.15.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "dfef65b0e94693295c5d2fe2506f0ee6f43465342d4b5331659936aee8b16084"
-dependencies = [
- "goblin",
- "indexmap",
- "log",
- "scroll",
- "string-interner",
- "target-lexicon",
- "thiserror",
+ "futures 0.3.4",
 ]
 
 [[package]]
 name = "failure"
-version = "0.1.8"
+version = "0.1.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d32e9bd16cc02eae7db7ef620b392808b89f6a5e16bb3497d159c6b92a0f4f86"
+checksum = "b8529c2421efa3066a5cbd8063d2244603824daccb6936b079010bb2aa89464b"
 dependencies = [
  "backtrace",
  "failure_derive",
@@ -941,13 +815,13 @@
 
 [[package]]
 name = "failure_derive"
-version = "0.1.8"
+version = "0.1.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "aa4da3c766cd7a0db8242e326e9e4e081edd567072893ed320008189715366a4"
+checksum = "030a733c8287d6213886dd487564ff5c8f6aae10278b3588ed177f9d18f8d231"
 dependencies = [
  "proc-macro2",
- "quote 1.0.7",
- "syn 1.0.31",
+ "quote 1.0.3",
+ "syn 1.0.17",
  "synstructure",
 ]
 
@@ -958,38 +832,21 @@
 checksum = "e88a8acf291dafb59c2d96e8f59828f3838bb1a70398823ade51a84de6a6deed"
 
 [[package]]
-name = "fallible-iterator"
-version = "0.2.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4443176a9f2c162692bd3d352d745ef9413eec5782a80d8fd6f8a1ac692a07f7"
-
-[[package]]
 name = "fdlimit"
 version = "0.1.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "0da54a593b34c71b889ee45f5b5bb900c74148c5f7f8c6a9479ee7899f69603c"
 dependencies = [
  "libc",
-]
-
-[[package]]
-name = "file-per-thread-logger"
-version = "0.1.3"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8b3937f028664bd0e13df401ba49a4567ccda587420365823242977f06609ed1"
-dependencies = [
- "env_logger",
- "log",
 ]
 
 [[package]]
 name = "finality-grandpa"
-version = "0.12.3"
+version = "0.11.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8feb87a63249689640ac9c011742c33139204e3c134293d3054022276869133b"
+checksum = "024517816630be5204eba201e8d1d405042b1255a5e0e3f298b054fc24d59e1d"
 dependencies = [
- "either",
- "futures 0.3.5",
+ "futures 0.3.4",
  "futures-timer 2.0.2",
  "log",
  "num-traits 0.2.11",
@@ -999,9 +856,9 @@
 
 [[package]]
 name = "fixed-hash"
-version = "0.6.1"
+version = "0.6.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "11498d382790b7a8f2fd211780bec78619bba81cdad3a283997c0c41f836759c"
+checksum = "32529fc42e86ec06e5047092082aab9ad459b070c5d2a76b14f4f5ce70bf2e84"
 dependencies = [
  "byteorder",
  "rand 0.7.3",
@@ -1030,133 +887,223 @@
 
 [[package]]
 name = "fnv"
-version = "1.0.7"
+version = "1.0.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3f9eec918d3f24069decb9af1554cad7c880e2da24a9afd88aca000531ab82c1"
+checksum = "2fad85553e09a6f881f739c29f0b00b0f01357c743266d478b68951ce23285f3"
 
 [[package]]
 name = "fork-tree"
-version = "2.0.0-rc4"
-source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-rc4#00768a1f21a579c478fe5d4f51e1fa71f7db9fd4"
+version = "2.0.0-alpha.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "40a4492b78f0aec7271d261e0f1025297012c7853c263e036d15790f9ca99e72"
 dependencies = [
  "parity-scale-codec",
 ]
 
 [[package]]
 name = "frame-benchmarking"
-version = "2.0.0-rc4"
-source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-rc4#00768a1f21a579c478fe5d4f51e1fa71f7db9fd4"
+version = "2.0.0-alpha.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4f2fc91a6a976ce87b105722d8d9cdc44d4cb03ad24493d34cbfb64bbaacb7ee"
 dependencies = [
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- "frame-system",
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+ "sp-std 2.0.0-alpha.6 (git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.6)",
+ "sp-version 2.0.0-alpha.6 (git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.6)",
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+
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+dependencies = [
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+ "parity-scale-codec",
+ "serde",
+ "sp-core 2.0.0-alpha.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "sp-io 2.0.0-alpha.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "sp-runtime 2.0.0-alpha.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "sp-std 2.0.0-alpha.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "sp-version 2.0.0-alpha.6 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -1201,9 +1148,9 @@
 
 [[package]]
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-version = "0.3.5"
+version = "0.3.4"
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-checksum = "1e05b85ec287aac0dc34db7d4a569323df697f9c55b99b15d6b4ef8cde49f613"
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 dependencies = [
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@@ -1216,9 +1163,9 @@
 
 [[package]]
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-version = "0.3.5"
+version = "0.3.4"
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-checksum = "f366ad74c28cca6ba456d95e6422883cfb4b252a83bed929c83abfdbbf2967d5"
+checksum = "f0c77d04ce8edd9cb903932b608268b3fffec4163dc053b3b402bf47eac1f1a8"
 dependencies = [
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@@ -1235,9 +1182,9 @@
 
 [[package]]
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-version = "0.3.5"
+version = "0.3.4"
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-checksum = "59f5fff90fd5d971f936ad674802482ba441b6f09ba5e15fd8b39145582ca399"
+checksum = "f25592f769825e89b92358db00d26f965761e094951ac44d3663ef25b7ac464a"
 
 [[package]]
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@@ -1262,7 +1209,7 @@
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 dependencies = [
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- "futures 0.3.5",
+ "futures 0.3.4",
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  "parking_lot 0.9.0",
@@ -1273,9 +1220,9 @@
 
 [[package]]
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-version = "0.3.5"
+version = "0.3.4"
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-checksum = "10d6bb888be1153d3abeb9006b11b02cf5e9b209fda28693c31ae1e4e012e314"
+checksum = "f674f3e1bcb15b37284a90cedf55afdba482ab061c407a9c0ebbd0f3109741ba"
 dependencies = [
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@@ -1285,36 +1232,33 @@
 
 [[package]]
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-version = "0.3.5"
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+checksum = "a638959aa96152c7a4cddf50fcb1e3fede0583b27157c26e67d6f99904090dc6"
 
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  "proc-macro2",
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- "syn 1.0.31",
+ "quote 1.0.3",
+ "syn 1.0.17",
 ]
 
 [[package]]
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-version = "0.3.5"
+version = "0.3.4"
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-checksum = "3f2032893cb734c7a05d85ce0cc8b8c4075278e93b24b66f9de99d6eb0fa8acc"
+checksum = "3466821b4bc114d95b087b850a724c6f83115e929bc88f1fa98a3304a944c8a6"
 
 [[package]]
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+version = "0.3.4"
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-checksum = "bdb66b5f09e22019b1ab0830f7785bcea8e7a42148683f99214f73f8ec21a626"
-dependencies = [
- "once_cell",
-]
+checksum = "7b0a34e53cf6cdcd0178aa573aed466b646eb3db769570841fda0c7ede375a27"
 
 [[package]]
 name = "futures-timer"
@@ -1330,9 +1274,9 @@
 
 [[package]]
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-version = "0.3.5"
+version = "0.3.4"
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 dependencies = [
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  "futures-channel",
@@ -1342,7 +1286,6 @@
  "futures-sink",
  "futures-task",
  "memchr",
- "pin-project",
  "pin-utils",
  "proc-macro-hack",
  "proc-macro-nested",
@@ -1368,7 +1311,7 @@
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 dependencies = [
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- "futures 0.3.5",
+ "futures 0.3.4",
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  "pin-project",
 ]
@@ -1422,26 +1365,6 @@
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 [[package]]
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-checksum = "81dd6190aad0f05ddbbf3245c54ed14ca4aa6dd32f22312b70d8f168c3e3e633"
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- "byteorder",
- "fallible-iterator",
- "indexmap",
- "smallvec 1.4.0",
- "stable_deref_trait",
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-
-[[package]]
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-checksum = "bcc8e0c9bce37868955864dbecd2b1ab2bdf967e6f28066d65aaac620444b65c"
-
-[[package]]
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 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -1461,17 +1384,6 @@
 ]
 
 [[package]]
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-version = "0.1.3"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3081214398d39e4bd7f2c1975f0488ed04614ffdd976c6fc7a0708278552c0da"
-dependencies = [
- "log",
- "plain",
- "scroll",
-]
-
-[[package]]
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 version = "0.1.26"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -1491,9 +1403,9 @@
 
 [[package]]
 name = "h2"
-version = "0.2.5"
+version = "0.2.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "79b7246d7e4b979c03fa093da39cfb3617a96bbeee6310af63991668d7e843ff"
+checksum = "377038bf3c89d18d6ca1431e7a5027194fbd724ca10592b9487ede5e8e144f42"
 dependencies = [
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  "fnv",
@@ -1504,7 +1416,7 @@
  "indexmap",
  "log",
  "slab",
- "tokio 0.2.21",
+ "tokio 0.2.18",
  "tokio-util",
 ]
 
@@ -1544,9 +1456,9 @@
 
 [[package]]
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-version = "0.1.13"
+version = "0.1.10"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "91780f809e750b0a89f5544be56617ff6b1227ee485bcb06ebe10cdf89bd3b71"
+checksum = "725cf19794cf90aa94e65050cb4191ff5d8fa87a498383774c47b332e3af952e"
 dependencies = [
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 ]
@@ -1569,9 +1481,9 @@
 
 [[package]]
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-version = "0.2.2"
+version = "0.2.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "853f769599eb31de176303197b7ba4973299c38c7a7604a6bc88c3eef05b9b46"
+checksum = "9d4c5c844e2fee0bf673d54c2c177f1713b3d2af2ff6e666b49cb7572e6cf42d"
 dependencies = [
  "proc-macro-hack",
 ]
@@ -1688,24 +1600,24 @@
 
 [[package]]
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-version = "0.13.6"
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 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a6e7655b9594024ad0ee439f3b5a7299369dc2a3f459b47c696f9ff676f9aa1f"
+checksum = "ed6081100e960d9d74734659ffc9cc91daf1c0fc7aceb8eaa94ee1a3f5046f2e"
 dependencies = [
  "bytes 0.5.4",
  "futures-channel",
  "futures-core",
  "futures-util",
- "h2 0.2.5",
+ "h2 0.2.4",
  "http 0.2.1",
  "http-body 0.3.1",
  "httparse",
  "itoa",
  "log",
+ "net2",
  "pin-project",
- "socket2",
  "time",
- "tokio 0.2.21",
+ "tokio 0.2.18",
  "tower-service",
  "want 0.3.0",
 ]
@@ -1719,11 +1631,11 @@
  "bytes 0.5.4",
  "ct-logs",
  "futures-util",
- "hyper 0.13.6",
+ "hyper 0.13.4",
  "log",
  "rustls",
  "rustls-native-certs",
- "tokio 0.2.21",
+ "tokio 0.2.18",
  "tokio-rustls",
  "webpki",
 ]
@@ -1760,6 +1672,15 @@
 ]
 
 [[package]]
+name = "impl-rlp"
+version = "0.2.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8f7a72f11830b52333f36e3b09a288333888bf54380fd0ac0790a3c31ab0f3c5"
+dependencies = [
+ "rlp",
+]
+
+[[package]]
 name = "impl-serde"
 version = "0.2.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -1770,9 +1691,9 @@
 
 [[package]]
 name = "impl-serde"
-version = "0.3.1"
+version = "0.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b47ca4d2b6931707a55fce5cf66aff80e2178c8b63bbb4ecb5695cbc870ddf6f"
+checksum = "5bbe9ea9b182f0fb1cabbd61f4ff9b7b7b9197955e95a7e4c27de5055eb29ff8"
 dependencies = [
  "serde",
 ]
@@ -1784,15 +1705,15 @@
 checksum = "7ef5550a42e3740a0e71f909d4c861056a284060af885ae7aa6242820f920d9d"
 dependencies = [
  "proc-macro2",
- "quote 1.0.7",
- "syn 1.0.31",
+ "quote 1.0.3",
+ "syn 1.0.17",
 ]
 
 [[package]]
 name = "indexmap"
-version = "1.4.0"
+version = "1.3.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c398b2b113b55809ceb9ee3e753fcbac793f1956663f3c36549c1346015c2afe"
+checksum = "076f042c5b7b98f31d205f1249267e12a6518c1481e9dae9764af19b707d2292"
 dependencies = [
  "autocfg 1.0.0",
 ]
@@ -1804,12 +1725,18 @@
 checksum = "f65877bf7d44897a473350b1046277941cee20b263397e90869c50b6e766088b"
 
 [[package]]
+name = "interleaved-ordered"
+version = "0.1.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "141340095b15ed7491bd3d4ced9d20cebfb826174b6bb03386381f62b01e3d77"
+
+[[package]]
 name = "intervalier"
 version = "0.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "64fa110ec7b8f493f416eed552740d10e7030ad5f63b2308f82c9608ec2df275"
 dependencies = [
- "futures 0.3.5",
+ "futures 0.3.4",
  "futures-timer 2.0.2",
 ]
 
@@ -1823,12 +1750,6 @@
 ]
 
 [[package]]
-name = "ip_network"
-version = "0.3.4"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2ee15951c035f79eddbef745611ec962f63f4558f1dadf98ab723cc603487c6f"
-
-[[package]]
 name = "ipnet"
 version = "2.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -1839,15 +1760,6 @@
 version = "0.8.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "f56a2d0bc861f9165be4eb3442afd3c236d8a98afd426f65d92324ae1091a484"
-dependencies = [
- "either",
-]
-
-[[package]]
-name = "itertools"
-version = "0.9.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "284f18f85651fe11e8a991b2adb42cb078325c996ed026d994719efcfca1d54b"
 dependencies = [
  "either",
 ]
@@ -1869,18 +1781,18 @@
 
 [[package]]
 name = "js-sys"
-version = "0.3.40"
+version = "0.3.37"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ce10c23ad2ea25ceca0093bd3192229da4c5b3c0f2de499c1ecac0d98d452177"
+checksum = "6a27d435371a2fa5b6d2b028a74bbdb1234f308da363226a2854ca3ff8ba7055"
 dependencies = [
  "wasm-bindgen",
 ]
 
 [[package]]
 name = "jsonrpc-client-transports"
-version = "14.2.0"
+version = "14.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ecbdaacc17243168d9d1fa6b2bd7556a27e1e60a621d8a2a6e590ae2b145d158"
+checksum = "2307a7e78cf969759e390a8a2151ea12e783849a45bb00aa871b468ba58ea79e"
 dependencies = [
  "failure",
  "futures 0.1.29",
@@ -1894,9 +1806,9 @@
 
 [[package]]
 name = "jsonrpc-core"
-version = "14.2.0"
+version = "14.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a0747307121ffb9703afd93afbd0fb4f854c38fb873f2c8b90e0e902f27c7b62"
+checksum = "25525f6002338fb4debb5167a89a0b47f727a5a48418417545ad3429758b7fec"
 dependencies = [
  "futures 0.1.29",
  "log",
@@ -1907,30 +1819,30 @@
 
 [[package]]
 name = "jsonrpc-core-client"
-version = "14.2.0"
+version = "14.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "34221123bc79b66279a3fde2d3363553835b43092d629b34f2e760c44dc94713"
+checksum = "87f9382e831a6d630c658df103aac3f971da096deb57c136ea2b760d3b4e3f9f"
 dependencies = [
  "jsonrpc-client-transports",
 ]
 
 [[package]]
 name = "jsonrpc-derive"
-version = "14.2.1"
+version = "14.0.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0fadf6945e227246825a583514534d864554e9f23d80b3c77d034b10983db5ef"
+checksum = "8609af8f63b626e8e211f52441fcdb6ec54f1a446606b10d5c89ae9bf8a20058"
 dependencies = [
  "proc-macro-crate",
  "proc-macro2",
- "quote 1.0.7",
- "syn 1.0.31",
+ "quote 1.0.3",
+ "syn 1.0.17",
 ]
 
 [[package]]
 name = "jsonrpc-http-server"
-version = "14.2.0"
+version = "14.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0da906d682799df05754480dac1b9e70ec92e12c19ebafd2662a5ea1c9fd6522"
+checksum = "d52860f0549694aa4abb12766856f56952ab46d3fb9f0815131b2db3d9cc2f29"
 dependencies = [
  "hyper 0.12.35",
  "jsonrpc-core",
@@ -1939,40 +1851,25 @@
  "net2",
  "parking_lot 0.10.2",
  "unicase",
-]
-
-[[package]]
-name = "jsonrpc-ipc-server"
-version = "14.2.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "dedccd693325d833963b549e959137f30a7a0ea650cde92feda81dc0c1393cb5"
-dependencies = [
- "jsonrpc-core",
- "jsonrpc-server-utils",
- "log",
- "parity-tokio-ipc",
- "parking_lot 0.10.2",
- "tokio-service",
 ]
 
 [[package]]
 name = "jsonrpc-pubsub"
-version = "14.2.0"
+version = "14.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2d44f5602a11d657946aac09357956d2841299ed422035edf140c552cb057986"
+checksum = "c4ca5e391d6c6a2261d4adca029f427fe63ea546ad6cef2957c654c08495ec16"
 dependencies = [
  "jsonrpc-core",
  "log",
  "parking_lot 0.10.2",
- "rand 0.7.3",
  "serde",
 ]
 
 [[package]]
 name = "jsonrpc-server-utils"
-version = "14.2.0"
+version = "14.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "56cbfb462e7f902e21121d9f0d1c2b77b2c5b642e1a4e8f4ebfa2e15b94402bb"
+checksum = "1f06add502b48351e05dd95814835327fb115e4e9f834ca42fd522d3b769d4d2"
 dependencies = [
  "bytes 0.4.12",
  "globset",
@@ -1986,9 +1883,9 @@
 
 [[package]]
 name = "jsonrpc-ws-server"
-version = "14.2.0"
+version = "14.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "903d3109fe7c4acb932b567e1e607e0f524ed04741b09fb0e61841bc40a022fc"
+checksum = "017a7dd5083d9ed62c5e1dd3e317975c33c3115dac5447f4480fe05a8c354754"
 dependencies = [
  "jsonrpc-core",
  "jsonrpc-server-utils",
@@ -2016,28 +1913,28 @@
 
 [[package]]
 name = "kv-log-macro"
-version = "1.0.6"
+version = "1.0.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4ff57d6d215f7ca7eb35a9a64d656ba4d9d2bef114d741dc08048e75e2f5d418"
+checksum = "8c54d9f465d530a752e6ebdc217e081a7a614b48cb200f6f0aee21ba6bc9aabb"
 dependencies = [
  "log",
 ]
 
 [[package]]
 name = "kvdb"
-version = "0.6.0"
+version = "0.5.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e763b2a9b500ba47948061d1e8bc3b5f03a8a1f067dbcf822a4d2c84d2b54a3a"
+checksum = "cad096c6849b2ef027fabe35c4aed356d0e3d3f586d0a8361e5e17f1e50a7ce5"
 dependencies = [
  "parity-util-mem",
- "smallvec 1.4.0",
+ "smallvec 1.3.0",
 ]
 
 [[package]]
 name = "kvdb-memorydb"
-version = "0.6.0"
+version = "0.5.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "73027d5e228de6f503b5b7335d530404fc26230a6ae3e09b33ec6e45408509a4"
+checksum = "4aa954d12cfac958822dfd77aab34f3eec71f103b918c4ab79ab59a36ee594ea"
 dependencies = [
  "kvdb",
  "parity-util-mem",
@@ -2046,11 +1943,12 @@
 
 [[package]]
 name = "kvdb-rocksdb"
-version = "0.8.0"
+version = "0.7.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "84384eca250c7ff67877eda5336f28a86586aaee24acb945643590671f6bfce1"
+checksum = "b3f14c3a10c8894d26175e57e9e26032e6d6c49c30cbe2468c5bf5f6b64bb0be"
 dependencies = [
  "fs-swap",
+ "interleaved-ordered",
  "kvdb",
  "log",
  "num_cpus",
@@ -2059,7 +1957,7 @@
  "parking_lot 0.10.2",
  "regex",
  "rocksdb",
- "smallvec 1.4.0",
+ "smallvec 1.3.0",
 ]
 
 [[package]]
@@ -2075,36 +1973,24 @@
 checksum = "b294d6fa9ee409a054354afc4352b0b9ef7ca222c69b8812cbea9e7d2bf3783f"
 
 [[package]]
-name = "leb128"
-version = "0.2.4"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3576a87f2ba00f6f106fdfcd16db1d698d648a26ad8e0573cad8537c3c362d2a"
-
-[[package]]
 name = "libc"
-version = "0.2.71"
+version = "0.2.69"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9457b06509d27052635f90d6466700c65095fdf75409b3fbdd903e988b886f49"
+checksum = "99e85c08494b21a9054e7fe1374a732aeadaff3980b6990b94bfd3a70f690005"
 
 [[package]]
 name = "libflate"
-version = "1.0.1"
+version = "0.1.27"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "784f4ec5908a9d7f4e53658906386667e8b02e9389a47cfebf45d324ba9e8d25"
+checksum = "d9135df43b1f5d0e333385cb6e7897ecd1a43d7d11b91ac003f4d2c2d2401fdd"
 dependencies = [
  "adler32",
  "crc32fast",
- "libflate_lz77",
  "rle-decode-fast",
+ "take_mut",
 ]
 
 [[package]]
-name = "libflate_lz77"
-version = "1.0.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3286f09f7d4926fc486334f28d8d2e6ebe4f7f9994494b6dab27ddfad2c9b11b"
-
-[[package]]
 name = "libloading"
 version = "0.5.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -2122,12 +2008,12 @@
 
 [[package]]
 name = "libp2p"
-version = "0.19.1"
+version = "0.18.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "057eba5432d3e740e313c6e13c9153d0cb76b4f71bfc2e5242ae5bdb7d41af67"
+checksum = "aa5aedb713f76577818529be8283e35ec5e8b3ecdccfe0231ba4d860687438ab"
 dependencies = [
  "bytes 0.5.4",
- "futures 0.3.5",
+ "futures 0.3.4",
  "lazy_static",
  "libp2p-core",
  "libp2p-core-derive",
@@ -2144,32 +2030,32 @@
  "libp2p-websocket",
  "libp2p-yamux",
  "multihash",
- "parity-multiaddr 0.9.0",
+ "parity-multiaddr 0.8.0",
  "parking_lot 0.10.2",
  "pin-project",
- "smallvec 1.4.0",
+ "smallvec 1.3.0",
  "wasm-timer",
 ]
 
 [[package]]
 name = "libp2p-core"
-version = "0.19.1"
+version = "0.18.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4f5e30dcd8cb13a02ad534e214da234eca1595a76b5788b645dfa5c734d2124b"
+checksum = "a1d2c17158c4dca984a77a5927aac6f0862d7f50c013470a415f93be498b5739"
 dependencies = [
  "asn1_der",
  "bs58",
  "ed25519-dalek",
  "either",
  "fnv",
- "futures 0.3.5",
+ "futures 0.3.4",
  "futures-timer 3.0.2",
  "lazy_static",
  "libsecp256k1",
  "log",
  "multihash",
  "multistream-select",
- "parity-multiaddr 0.9.0",
+ "parity-multiaddr 0.8.0",
  "parking_lot 0.10.2",
  "pin-project",
  "prost",
@@ -2178,7 +2064,7 @@
  "ring",
  "rw-stream-sink",
  "sha2",
- "smallvec 1.4.0",
+ "smallvec 1.3.0",
  "thiserror",
  "unsigned-varint",
  "void",
@@ -2187,52 +2073,52 @@
 
 [[package]]
 name = "libp2p-core-derive"
-version = "0.19.1"
+version = "0.18.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f09548626b737ed64080fde595e06ce1117795b8b9fc4d2629fa36561c583171"
+checksum = "329127858e4728db5ab60c33d5ae352a999325fdf190ed022ec7d3a4685ae2e6"
 dependencies = [
- "quote 1.0.7",
- "syn 1.0.31",
+ "quote 1.0.3",
+ "syn 1.0.17",
 ]
 
 [[package]]
 name = "libp2p-dns"
-version = "0.19.0"
+version = "0.18.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3cc186d9a941fd0207cf8f08ef225a735e2d7296258f570155e525f6ee732f87"
+checksum = "c0d0993481203d68e5ce2f787d033fb0cac6b850659ed6c784612db678977c71"
 dependencies = [
- "futures 0.3.5",
+ "futures 0.3.4",
  "libp2p-core",
  "log",
 ]
 
 [[package]]
 name = "libp2p-identify"
-version = "0.19.1"
+version = "0.18.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6438ed8ca240c7635c9caa3be6c5258bc0058553ae97ba81737f04e5d33804f5"
+checksum = "a38ca3eb807789e26f41c82ca7cd2b3843c66c5587b8b5f709a2f421f3061414"
 dependencies = [
- "futures 0.3.5",
+ "futures 0.3.4",
  "libp2p-core",
  "libp2p-swarm",
  "log",
  "prost",
  "prost-build",
- "smallvec 1.4.0",
+ "smallvec 1.3.0",
  "wasm-timer",
 ]
 
 [[package]]
 name = "libp2p-kad"
-version = "0.19.0"
+version = "0.18.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "41d6c1d5100973527ae70d82687465b17049c1b717a7964de38b8e65000878ff"
+checksum = "a92cda1fb8149ea64d092a2b99d2bd7a2c309eee38ea322d02e4480bd6ee1759"
 dependencies = [
  "arrayvec 0.5.1",
  "bytes 0.5.4",
  "either",
  "fnv",
- "futures 0.3.5",
+ "futures 0.3.4",
  "futures_codec",
  "libp2p-core",
  "libp2p-swarm",
@@ -2242,7 +2128,7 @@
  "prost-build",
  "rand 0.7.3",
  "sha2",
- "smallvec 1.4.0",
+ "smallvec 1.3.0",
  "uint",
  "unsigned-varint",
  "void",
@@ -2251,35 +2137,35 @@
 
 [[package]]
 name = "libp2p-mdns"
-version = "0.19.1"
+version = "0.18.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "51b00163d13f705aae67c427bea0575f8aaf63da6524f9bd4a5a093b8bda0b38"
+checksum = "41e908d2aaf8ff0ec6ad1f02fe1844fd777fb0b03a68a226423630750ab99471"
 dependencies = [
  "async-std",
  "data-encoding",
  "dns-parser",
  "either",
- "futures 0.3.5",
+ "futures 0.3.4",
  "lazy_static",
  "libp2p-core",
  "libp2p-swarm",
  "log",
  "net2",
  "rand 0.7.3",
- "smallvec 1.4.0",
+ "smallvec 1.3.0",
  "void",
  "wasm-timer",
 ]
 
 [[package]]
 name = "libp2p-mplex"
-version = "0.19.1"
+version = "0.18.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "34ce63313ad4bce2d76e54c292a1293ea47a0ebbe16708f1513fa62184992f53"
+checksum = "0832882b06619b2e81d74e71447753ea3c068164a0bca67847d272e856a04a02"
 dependencies = [
  "bytes 0.5.4",
  "fnv",
- "futures 0.3.5",
+ "futures 0.3.4",
  "futures_codec",
  "libp2p-core",
  "log",
@@ -2289,12 +2175,12 @@
 
 [[package]]
 name = "libp2p-noise"
-version = "0.19.0"
+version = "0.18.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "84fd504e27b0eadd451e06b67694ef714bd8374044e7db339bb0cdb83755ddf4"
+checksum = "918e94a649e1139c24ee9f1f8c1f2adaba6d157b9471af787f2d9beac8c29c77"
 dependencies = [
  "curve25519-dalek",
- "futures 0.3.5",
+ "futures 0.3.4",
  "lazy_static",
  "libp2p-core",
  "log",
@@ -2310,11 +2196,11 @@
 
 [[package]]
 name = "libp2p-ping"
-version = "0.19.1"
+version = "0.18.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c189cf1dfe4b3f01e2c0fe5e97a6f5df8aeb6f3569e26981015eb7c08015ce5f"
+checksum = "f9bfbf87eebb492d040f9899c5c81c9738730465ac5e78d9b7a7d086d0f07230"
 dependencies = [
- "futures 0.3.5",
+ "futures 0.3.4",
  "libp2p-core",
  "libp2p-swarm",
  "log",
@@ -2325,42 +2211,41 @@
 
 [[package]]
 name = "libp2p-swarm"
-version = "0.19.0"
+version = "0.18.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b4a8101a0e0d5f04562137a476bf5f5423cd5bdab2f7e43a75909668e63cb102"
+checksum = "622605817885e67b5572189c2507e514b786beb69ed85a120dbb245a7f15383d"
 dependencies = [
- "futures 0.3.5",
+ "futures 0.3.4",
  "libp2p-core",
  "log",
  "rand 0.7.3",
- "smallvec 1.4.0",
+ "smallvec 1.3.0",
  "void",
  "wasm-timer",
 ]
 
 [[package]]
 name = "libp2p-tcp"
-version = "0.19.1"
+version = "0.18.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "309f95fce9bec755eff5406f8b822fd3969990830c2b54f752e1fc181d5ace3e"
+checksum = "b37ea44823d3ed223e4605da94b50177bc520f05ae2452286700549a32d81669"
 dependencies = [
  "async-std",
- "futures 0.3.5",
+ "futures 0.3.4",
  "futures-timer 3.0.2",
  "get_if_addrs",
  "ipnet",
  "libp2p-core",
  "log",
- "socket2",
 ]
 
 [[package]]
 name = "libp2p-wasm-ext"
-version = "0.19.0"
+version = "0.18.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f59fdbb5706f2723ca108c088b1c7a37f735a8c328021f0508007162627e9885"
+checksum = "e3ac7dbde0f88cad191dcdfd073b8bae28d01823e8ca313f117b6ecb914160c3"
 dependencies = [
- "futures 0.3.5",
+ "futures 0.3.4",
  "js-sys",
  "libp2p-core",
  "parity-send-wrapper",
@@ -2370,14 +2255,14 @@
 
 [[package]]
 name = "libp2p-websocket"
-version = "0.19.0"
+version = "0.18.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "085fbe4c05c4116c2164ab4d5a521eb6e00516c444f61b3ee9f68c7b1e53580b"
+checksum = "6874c9069ce93d899df9dc7b29f129c706b2a0fdc048f11d878935352b580190"
 dependencies = [
  "async-tls",
  "bytes 0.5.4",
  "either",
- "futures 0.3.5",
+ "futures 0.3.4",
  "libp2p-core",
  "log",
  "quicksink",
@@ -2391,11 +2276,11 @@
 
 [[package]]
 name = "libp2p-yamux"
-version = "0.19.0"
+version = "0.18.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0b305d3a8981e68f11c0e17f2d11d5c52fae95e0d7c283f9e462b5b2dab413b2"
+checksum = "02f91aea50f6571e0bc6c058dc0e9b270afd41ec28dd94e9e4bf607e78b9ab87"
 dependencies = [
- "futures 0.3.5",
+ "futures 0.3.4",
  "libp2p-core",
  "parking_lot 0.10.2",
  "thiserror",
@@ -2404,9 +2289,9 @@
 
 [[package]]
 name = "librocksdb-sys"
-version = "6.7.4"
+version = "6.6.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "883213ae3d09bfc3d104aefe94b25ebb183b6f4d3a515b23b14817e1f4854005"
+checksum = "4e3b727e2dd20ec2fb7ed93f23d9fd5328a0871185485ebdaff007b47d3e27e4"
 dependencies = [
  "bindgen",
  "cc",
@@ -2426,7 +2311,7 @@
  "hmac-drbg",
  "rand 0.7.3",
  "sha2",
- "subtle 2.2.3",
+ "subtle 2.2.2",
  "typenum",
 ]
 
@@ -2444,9 +2329,9 @@
 
 [[package]]
 name = "linked-hash-map"
-version = "0.5.3"
+version = "0.5.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8dd5a6d5999d9907cda8ed67bbd137d3af8085216c2ac62de5be860bd41f304a"
+checksum = "ae91b68aebc4ddb91978b11a1b02ddd8602a05ec19002801c5666000e05e0f83"
 
 [[package]]
 name = "linked_hash_set"
@@ -2493,15 +2378,6 @@
 checksum = "0609345ddee5badacf857d4f547e0e5a2e987db77085c24cd887f73573a04237"
 dependencies = [
  "hashbrown",
-]
-
-[[package]]
-name = "mach"
-version = "0.3.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b823e83b2affd8f40a9ee8c29dbc56404c1e34cd2710921f2801e2cf29527afa"
-dependencies = [
- "libc",
 ]
 
 [[package]]
@@ -2532,16 +2408,6 @@
 checksum = "3728d817d99e5ac407411fa471ff9800a778d88a24685968b36824eaf4bee400"
 
 [[package]]
-name = "memmap"
-version = "0.7.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6585fd95e7bb50d6cc31e20d4cf9afb4e2ba16c5846fc76793f11218da9c475b"
-dependencies = [
- "libc",
- "winapi 0.3.8",
-]
-
-[[package]]
 name = "memoffset"
 version = "0.5.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -2552,9 +2418,9 @@
 
 [[package]]
 name = "memory-db"
-version = "0.21.0"
+version = "0.20.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "fb2999ff7a65d5a1d72172f6d51fa2ea03024b51aee709ba5ff81c3c629a2410"
+checksum = "be512cb2ccb4ecbdca937fdd4a62ea5f09f8e7195466a85e4632b3d5bcce82e6"
 dependencies = [
  "ahash",
  "hash-db",
@@ -2582,18 +2448,18 @@
 
 [[package]]
 name = "miniz_oxide"
-version = "0.3.7"
+version = "0.3.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "791daaae1ed6889560f8c4359194f56648355540573244a5448a83ba1ecc7435"
+checksum = "aa679ff6578b1cddee93d7e82e263b94a575e0bfced07284eb0c037c1d2416a5"
 dependencies = [
  "adler32",
 ]
 
 [[package]]
 name = "mio"
-version = "0.6.22"
+version = "0.6.21"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "fce347092656428bc8eaf6201042cb551b8d67855af7374542a92a0fbfcac430"
+checksum = "302dec22bcf6bae6dfb69c647187f4b4d0fb6f535521f7bc022430ce8e12008f"
 dependencies = [
  "cfg-if",
  "fuchsia-zircon",
@@ -2602,7 +2468,7 @@
  "kernel32-sys",
  "libc",
  "log",
- "miow 0.2.1",
+ "miow",
  "net2",
  "slab",
  "winapi 0.2.8",
@@ -2618,25 +2484,13 @@
  "log",
  "mio",
  "slab",
-]
-
-[[package]]
-name = "mio-named-pipes"
-version = "0.1.6"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f5e374eff525ce1c5b7687c4cef63943e7686524a387933ad27ca7ec43779cb3"
-dependencies = [
- "log",
- "mio",
- "miow 0.3.5",
- "winapi 0.3.8",
 ]
 
 [[package]]
 name = "mio-uds"
-version = "0.6.8"
+version = "0.6.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "afcb699eb26d4332647cc848492bbc15eafb26f08d0304550d5aa1f612e066f0"
+checksum = "966257a94e196b11bb43aca423754d87429960a768de9414f3691d6957abf125"
 dependencies = [
  "iovec",
  "libc",
@@ -2656,26 +2510,10 @@
 ]
 
 [[package]]
-name = "miow"
-version = "0.3.5"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "07b88fb9795d4d36d62a012dfbf49a8f5cf12751f36d31a9dbe66d528e58979e"
-dependencies = [
- "socket2",
- "winapi 0.3.8",
-]
-
-[[package]]
-name = "more-asserts"
-version = "0.2.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0debeb9fcf88823ea64d64e4a815ab1643f33127d995978e099942ce38f25238"
-
-[[package]]
 name = "multihash"
-version = "0.11.2"
+version = "0.10.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f75db05d738947aa5389863aadafbcf2e509d7ba099dc2ddcdf4fc66bf7a9e03"
+checksum = "47fbc227f7e2b1cb701f95404579ecb2668abbdd3c7ef7a6cbb3cc0d3b236869"
 dependencies = [
  "blake2b_simd",
  "blake2s_simd",
@@ -2694,15 +2532,15 @@
 
 [[package]]
 name = "multistream-select"
-version = "0.8.1"
+version = "0.8.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "991c33683908c588b8f2cf66c221d8f390818c1bdcd13fce55208408e027a796"
+checksum = "74cdcf7cfb3402881e15a1f95116cb033d69b33c83d481e1234777f5ef0c3d2c"
 dependencies = [
  "bytes 0.5.4",
- "futures 0.3.5",
+ "futures 0.3.4",
  "log",
  "pin-project",
- "smallvec 1.4.0",
+ "smallvec 1.3.0",
  "unsigned-varint",
 ]
 
@@ -2734,9 +2572,9 @@
 
 [[package]]
 name = "net2"
-version = "0.2.34"
+version = "0.2.33"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2ba7c918ac76704fb42afcbbb43891e72731f3dcca3bef2a19786297baf14af7"
+checksum = "42550d9fb7b6684a6d404d9fa7250c2eb2646df731d1c06afc06dcee9e1bcf88"
 dependencies = [
  "cfg-if",
  "libc",
@@ -2759,31 +2597,27 @@
 
 [[package]]
 name = "nft"
-version = "2.0.0-rc4"
+version = "2.0.0-alpha.6"
 dependencies = [
- "futures 0.3.5",
- "jsonrpc-core",
+ "futures 0.3.4",
  "log",
  "nft-runtime",
- "pallet-contracts-rpc",
- "parking_lot 0.10.2",
  "sc-basic-authorship",
  "sc-cli",
+ "sc-client",
  "sc-client-api",
- "sc-consensus",
  "sc-consensus-aura",
  "sc-executor",
  "sc-finality-grandpa",
  "sc-network",
- "sc-rpc",
  "sc-service",
  "sc-transaction-pool",
  "sp-consensus",
  "sp-consensus-aura",
- "sp-core",
+ "sp-core 2.0.0-alpha.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "sp-finality-grandpa",
- "sp-inherents",
- "sp-runtime",
+ "sp-inherents 2.0.0-alpha.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "sp-runtime 2.0.0-alpha.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "sp-transaction-pool",
  "structopt",
  "substrate-build-script-utils",
@@ -2791,11 +2625,11 @@
 
 [[package]]
 name = "nft-runtime"
-version = "2.0.0-rc4"
+version = "2.0.0-alpha.6"
 dependencies = [
  "frame-executive",
- "frame-support",
- "frame-system",
+ "frame-support 2.0.0-alpha.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "frame-system 2.0.0-alpha.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "pallet-aura",
  "pallet-balances",
  "pallet-contracts",
@@ -2804,24 +2638,23 @@
  "pallet-grandpa",
  "pallet-nft",
  "pallet-randomness-collective-flip",
- "pallet-staking",
  "pallet-sudo",
  "pallet-timestamp",
  "pallet-transaction-payment",
  "parity-scale-codec",
  "serde",
- "sp-api",
+ "sp-api 2.0.0-alpha.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "sp-block-builder",
  "sp-consensus-aura",
- "sp-core",
- "sp-inherents",
- "sp-io",
+ "sp-core 2.0.0-alpha.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "sp-inherents 2.0.0-alpha.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "sp-io 2.0.0-alpha.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "sp-offchain",
- "sp-runtime",
+ "sp-runtime 2.0.0-alpha.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "sp-session",
- "sp-std",
+ "sp-std 2.0.0-alpha.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "sp-transaction-pool",
- "sp-version",
+ "sp-version 2.0.0-alpha.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "substrate-wasm-builder-runner",
 ]
 
@@ -2862,9 +2695,9 @@
 
 [[package]]
 name = "ntapi"
-version = "0.3.4"
+version = "0.3.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7a31937dea023539c72ddae0e3571deadc1414b300483fa7aaec176168cfa9d2"
+checksum = "f26e041cd983acbc087e30fcba770380cfa352d0e392e175b2344ebaf7ea0602"
 dependencies = [
  "winapi 0.3.8",
 ]
@@ -2933,36 +2766,31 @@
 
 [[package]]
 name = "num_cpus"
-version = "1.13.0"
+version = "1.12.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "05499f3756671c15885fee9034446956fff3f243d6077b91e5767df161f766b3"
+checksum = "46203554f085ff89c235cd12f7075f3233af9b11ed7c9e16dfe2560d03313ce6"
 dependencies = [
  "hermit-abi",
  "libc",
 ]
 
 [[package]]
-name = "object"
-version = "0.18.0"
+name = "ole32-sys"
+version = "0.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e5666bbb90bc4d1e5bdcb26c0afda1822d25928341e9384ab187a9b37ab69e36"
+checksum = "5d2c49021782e5233cd243168edfa8037574afed4eba4bbaf538b3d8d1789d8c"
 dependencies = [
- "target-lexicon",
+ "winapi 0.2.8",
+ "winapi-build",
 ]
 
 [[package]]
-name = "object"
-version = "0.19.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9cbca9424c482ee628fa549d9c812e2cd22f1180b9222c9200fdfa6eb31aecb2"
-
-[[package]]
 name = "once_cell"
-version = "1.4.0"
+version = "1.3.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0b631f7e854af39a1739f401cf34a8a013dfe09eac4fa4dba91e9768bd28168d"
+checksum = "b1c601810575c99596d4afc46f78a678c80105117c379eb3650cf99b8a21ce5b"
 dependencies = [
- "parking_lot 0.10.2",
+ "parking_lot 0.9.0",
 ]
 
 [[package]]
@@ -2988,285 +2816,225 @@
 
 [[package]]
 name = "pallet-aura"
-version = "2.0.0-rc4"
-source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-rc4#00768a1f21a579c478fe5d4f51e1fa71f7db9fd4"
+version = "2.0.0-alpha.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9757d44df3ff0372ea313703736e69ba361b158a58b7c9677b54be11a777da81"
 dependencies = [
- "frame-support",
- "frame-system",
+ "frame-support 2.0.0-alpha.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "frame-system 2.0.0-alpha.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "pallet-session",
  "pallet-timestamp",
  "parity-scale-codec",
  "serde",
- "sp-application-crypto",
+ "sp-application-crypto 2.0.0-alpha.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "sp-consensus-aura",
- "sp-inherents",
- "sp-runtime",
- "sp-std",
+ "sp-core 2.0.0-alpha.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "sp-inherents 2.0.0-alpha.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "sp-io 2.0.0-alpha.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "sp-runtime 2.0.0-alpha.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "sp-std 2.0.0-alpha.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "sp-timestamp",
 ]
 
 [[package]]
-name = "pallet-authorship"
-version = "2.0.0-rc4"
-source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-rc4#00768a1f21a579c478fe5d4f51e1fa71f7db9fd4"
-dependencies = [
- "frame-support",
- "frame-system",
- "impl-trait-for-tuples",
- "parity-scale-codec",
- "sp-authorship",
- "sp-inherents",
- "sp-runtime",
- "sp-std",
-]
-
-[[package]]
 name = "pallet-balances"
-version = "2.0.0-rc4"
-source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-rc4#00768a1f21a579c478fe5d4f51e1fa71f7db9fd4"
+version = "2.0.0-alpha.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b9ef08001886d3747220630337f7afbb8f1d7cbfacaa3a8a13317e1cb3e8e366"
 dependencies = [
  "frame-benchmarking",
- "frame-support",
- "frame-system",
+ "frame-support 2.0.0-alpha.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "frame-system 2.0.0-alpha.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "parity-scale-codec",
  "serde",
- "sp-runtime",
- "sp-std",
+ "sp-io 2.0.0-alpha.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "sp-runtime 2.0.0-alpha.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "sp-std 2.0.0-alpha.6 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "pallet-contracts"
-version = "2.0.0-rc4"
-source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-rc4#00768a1f21a579c478fe5d4f51e1fa71f7db9fd4"
+version = "2.0.0-alpha.6"
+source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.6#67f354f57e738fa575775f7fa0fb903e8972182b"
 dependencies = [
- "frame-support",
- "frame-system",
+ "frame-support 2.0.0-alpha.6 (git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.6)",
+ "frame-system 2.0.0-alpha.6 (git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.6)",
  "pallet-contracts-primitives",
  "parity-scale-codec",
  "parity-wasm",
  "pwasm-utils",
  "serde",
- "sp-core",
- "sp-io",
- "sp-runtime",
+ "sp-core 2.0.0-alpha.6 (git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.6)",
+ "sp-io 2.0.0-alpha.6 (git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.6)",
+ "sp-runtime 2.0.0-alpha.6 (git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.6)",
  "sp-sandbox",
- "sp-std",
+ "sp-std 2.0.0-alpha.6 (git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.6)",
  "wasmi-validation",
 ]
 
 [[package]]
 name = "pallet-contracts-primitives"
-version = "2.0.0-rc4"
-source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-rc4#00768a1f21a579c478fe5d4f51e1fa71f7db9fd4"
+version = "2.0.0-alpha.6"
+source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.6#67f354f57e738fa575775f7fa0fb903e8972182b"
 dependencies = [
  "parity-scale-codec",
- "sp-runtime",
- "sp-std",
-]
-
-[[package]]
-name = "pallet-contracts-rpc"
-version = "0.8.0-rc4"
-source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-rc4#00768a1f21a579c478fe5d4f51e1fa71f7db9fd4"
-dependencies = [
- "jsonrpc-core",
- "jsonrpc-core-client",
- "jsonrpc-derive",
- "pallet-contracts-primitives",
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- "sp-io",
- "sp-npos-elections",
- "sp-runtime",
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- "sp-inherents",
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- "smallvec 1.4.0",
- "sp-runtime",
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+ "sp-runtime 2.0.0-alpha.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "sp-std 2.0.0-alpha.6 (registry+https://github.com/rust-lang/crates.io-index)",
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 dependencies = [
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+ "frame-support 2.0.0-alpha.6 (registry+https://github.com/rust-lang/crates.io-index)",
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- "sp-api",
- "sp-runtime",
- "sp-std",
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-
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-dependencies = [
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- "crc32fast",
- "libc",
- "log",
- "memmap",
- "parking_lot 0.10.2",
+ "sp-api 2.0.0-alpha.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "sp-runtime 2.0.0-alpha.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "sp-std 2.0.0-alpha.6 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -3289,9 +3057,9 @@
 
 [[package]]
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+version = "0.8.0"
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@@ -3322,9 +3090,9 @@
 
 [[package]]
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+version = "1.3.0"
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@@ -3341,8 +3109,8 @@
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- "syn 1.0.31",
+ "quote 1.0.3",
+ "syn 1.0.17",
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 [[package]]
@@ -3352,36 +3120,20 @@
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- "tokio-named-pipes",
- "tokio-uds",
- "winapi 0.3.8",
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-
-[[package]]
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 checksum = "2c6e2583649a3ca84894d1d71da249abcfda54d5aca24733d72ca10d0f02361c"
 dependencies = [
  "cfg-if",
+ "ethereum-types",
+ "hashbrown",
  "impl-trait-for-tuples",
+ "lru",
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  "parking_lot 0.10.2",
  "primitive-types",
- "smallvec 1.4.0",
+ "smallvec 1.3.0",
  "winapi 0.3.8",
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@@ -3392,7 +3144,7 @@
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 dependencies = [
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- "syn 1.0.31",
+ "syn 1.0.17",
  "synstructure",
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@@ -3420,7 +3172,7 @@
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 dependencies = [
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- "parking_lot_core 0.7.2",
+ "parking_lot_core 0.7.1",
 ]
 
 [[package]]
@@ -3440,23 +3192,23 @@
 
 [[package]]
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-version = "0.7.2"
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-checksum = "d58c7c768d4ba344e3e8d72518ac13e259d7c7ade24167003b8488e10b6740a3"
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 dependencies = [
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  "libc",
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- "smallvec 1.4.0",
+ "smallvec 1.3.0",
  "winapi 0.3.8",
 ]
 
 [[package]]
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+version = "0.1.10"
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-checksum = "d508492eeb1e5c38ee696371bf7b9fc33c83d46a7d451606b96458fbbbdc2dec"
+checksum = "ab4fb1930692d1b6a9cfabdde3d06ea0a7d186518e2f4d67660d8970e2fa647a"
 dependencies = [
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@@ -3464,14 +3216,14 @@
 
 [[package]]
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 dependencies = [
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  "proc-macro2",
- "quote 1.0.7",
- "syn 1.0.31",
+ "quote 1.0.3",
+ "syn 1.0.17",
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 [[package]]
@@ -3504,9 +3256,9 @@
 
 [[package]]
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-version = "0.5.1"
+version = "0.5.0"
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-checksum = "467d164a6de56270bd7c4d070df81d07beace25012d5103ced4e9ff08d6afdb7"
+checksum = "29c127eea4a29ec6c85d153c59dc1213f33ec74cead30fe4730aecc88cc1fd92"
 dependencies = [
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@@ -3514,35 +3266,35 @@
 
 [[package]]
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-version = "0.4.20"
+version = "0.4.9"
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-checksum = "e75373ff9037d112bb19bc61333a06a159eaeb217660dcfbea7d88e1db823919"
+checksum = "6f6a7f5eee6292c559c793430c55c00aea9d3b3d1905e855806ca4d7253426a2"
 dependencies = [
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 [[package]]
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+version = "0.4.9"
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+checksum = "8988430ce790d8682672117bc06dda364c0be32d3abd738234f19f3240bad99a"
 dependencies = [
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- "quote 1.0.7",
- "syn 1.0.31",
+ "quote 1.0.3",
+ "syn 1.0.17",
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 [[package]]
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-version = "0.1.7"
+version = "0.1.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "282adbf10f2698a7a77f8e983a74b2d18176c19a7fd32a45446139ae7b02b715"
+checksum = "237844750cfbb86f67afe27eee600dfbbcb6188d734139b534cbfbf4f96792ae"
 
 [[package]]
 name = "pin-utils"
-version = "0.1.0"
+version = "0.1.0-alpha.4"
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-checksum = "8b870d8c151b6f2fb93e84a13146138f05d02ed11c7e7c54f8826aaaf7c9f184"
+checksum = "5894c618ce612a3fa23881b152b608bafb8c56cfc22f434a3ba3120b40f7b587"
 
 [[package]]
 name = "pkg-config"
@@ -3551,12 +3303,6 @@
 checksum = "05da548ad6865900e60eaba7f589cc0783590a92e940c26953ff81ddbab2d677"
 
 [[package]]
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-version = "0.2.3"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b4596b6d070b27117e987119b4dac604f3c58cfb0b191112e24771b2faeac1a6"
-
-[[package]]
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 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -3564,19 +3310,20 @@
 
 [[package]]
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-version = "0.2.8"
+version = "0.2.6"
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+checksum = "74490b50b9fbe561ac330df47c08f3f33073d2d00c150f719147d7c54522fa1b"
 
 [[package]]
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-version = "0.7.2"
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-checksum = "c55c21c64d0eaa4d7ed885d959ef2d62d9e488c27c0e02d9aa5ce6c877b7d5f8"
+checksum = "e5e4b9943a2da369aec5e96f7c10ebc74fcf434d39590d974b0a3460e6f67fbb"
 dependencies = [
  "fixed-hash",
  "impl-codec",
- "impl-serde 0.3.1",
+ "impl-rlp",
+ "impl-serde 0.3.0",
  "uint",
 ]
 
@@ -3597,8 +3344,8 @@
 dependencies = [
  "proc-macro-error-attr",
  "proc-macro2",
- "quote 1.0.7",
- "syn 1.0.31",
+ "quote 1.0.3",
+ "syn 1.0.17",
  "version_check",
 ]
 
@@ -3609,38 +3356,38 @@
 checksum = "4f5444ead4e9935abd7f27dc51f7e852a0569ac888096d5ec2499470794e2e53"
 dependencies = [
  "proc-macro2",
- "quote 1.0.7",
- "syn 1.0.31",
+ "quote 1.0.3",
+ "syn 1.0.17",
  "syn-mid",
  "version_check",
 ]
 
 [[package]]
 name = "proc-macro-hack"
-version = "0.5.16"
+version = "0.5.15"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7e0456befd48169b9f13ef0f0ad46d492cf9d2dbb918bcf38e01eed4ce3ec5e4"
+checksum = "0d659fe7c6d27f25e9d80a1a094c223f5246f6a6596453e09d7229bf42750b63"
 
 [[package]]
 name = "proc-macro-nested"
-version = "0.1.5"
+version = "0.1.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0afe1bd463b9e9ed51d0e0f0b50b6b146aec855c56fd182bb242388710a9b6de"
+checksum = "8e946095f9d3ed29ec38de908c22f95d9ac008e424c7bcae54c75a79c527c694"
 
 [[package]]
 name = "proc-macro2"
-version = "1.0.18"
+version = "1.0.10"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "beae6331a816b1f65d04c45b078fd8e6c93e8071771f41b8163255bbd8d7c8fa"
+checksum = "df246d292ff63439fea9bc8c0a270bed0e390d5ebd4db4ba15aba81111b5abe3"
 dependencies = [
  "unicode-xid 0.2.0",
 ]
 
 [[package]]
 name = "procfs"
-version = "0.7.9"
+version = "0.7.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c434e93ef69c216e68e4f417c927b4f31502c3560b72cfdb6827e2321c5c6b3e"
+checksum = "fe50036aa1b71e553a4a0c48ab7baabf8aa8c7a5a61aae06bf38c2eab7430475"
 dependencies = [
  "bitflags",
  "byteorder",
@@ -3683,7 +3430,7 @@
 dependencies = [
  "bytes 0.5.4",
  "heck",
- "itertools 0.8.2",
+ "itertools",
  "log",
  "multimap",
  "petgraph",
@@ -3700,10 +3447,10 @@
 checksum = "537aa19b95acde10a12fec4301466386f757403de4cd4e5b4fa78fb5ecb18f72"
 dependencies = [
  "anyhow",
- "itertools 0.8.2",
+ "itertools",
  "proc-macro2",
- "quote 1.0.7",
- "syn 1.0.31",
+ "quote 1.0.3",
+ "syn 1.0.17",
 ]
 
 [[package]]
@@ -3758,9 +3505,9 @@
 
 [[package]]
 name = "quote"
-version = "1.0.7"
+version = "1.0.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "aa563d17ecb180e500da1cfd2b028310ac758de548efdd203e18f283af693f37"
+checksum = "2bdc6c187c65bca4260c9011c9e3132efe4909da44726bad24cf7572ae338d7f"
 dependencies = [
  "proc-macro2",
 ]
@@ -3821,7 +3568,7 @@
  "rand_isaac",
  "rand_jitter",
  "rand_os",
- "rand_pcg 0.1.2",
+ "rand_pcg",
  "rand_xorshift",
  "winapi 0.3.8",
 ]
@@ -3837,7 +3584,6 @@
  "rand_chacha 0.2.2",
  "rand_core 0.5.1",
  "rand_hc 0.2.0",
- "rand_pcg 0.2.1",
 ]
 
 [[package]]
@@ -3947,32 +3693,12 @@
 ]
 
 [[package]]
-name = "rand_pcg"
-version = "0.2.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "16abd0c1b639e9eb4d7c50c0b8100b0d0f849be2349829c740fe8e6eb4816429"
-dependencies = [
- "rand_core 0.5.1",
-]
-
-[[package]]
 name = "rand_xorshift"
 version = "0.1.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "cbf7e9e623549b0e21f6e97cf8ecf247c1a8fd2e8a992ae265314300b2455d5c"
 dependencies = [
  "rand_core 0.3.1",
-]
-
-[[package]]
-name = "raw-cpuid"
-version = "7.0.3"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b4a349ca83373cfa5d6dbb66fd76e58b2cca08da71a5f6400de0a0a6a9bceeaf"
-dependencies = [
- "bitflags",
- "cc",
- "rustc_version",
 ]
 
 [[package]]
@@ -4021,52 +3747,10 @@
 checksum = "2439c63f3f6139d1b57529d16bc3b8bb855230c8efcc5d3a896c8bea7c3b1e84"
 
 [[package]]
-name = "redox_users"
-version = "0.3.4"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "09b23093265f8d200fa7b4c2c76297f47e681c655f6f1285a8780d6a022f7431"
-dependencies = [
- "getrandom",
- "redox_syscall",
- "rust-argon2",
-]
-
-[[package]]
-name = "ref-cast"
-version = "1.0.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0a214c7875e1b63fc1618db7c80efc0954f6156c9ff07699fd9039e255accdd1"
-dependencies = [
- "ref-cast-impl",
-]
-
-[[package]]
-name = "ref-cast-impl"
-version = "1.0.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "602eb59cda66fcb9aec25841fb76bc01d2b34282dcdd705028da297db6f3eec8"
-dependencies = [
- "proc-macro2",
- "quote 1.0.7",
- "syn 1.0.31",
-]
-
-[[package]]
-name = "regalloc"
-version = "0.0.21"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b27b256b41986ac5141b37b8bbba85d314fbf546c182eb255af6720e07e4f804"
-dependencies = [
- "log",
- "rustc-hash",
- "smallvec 1.4.0",
-]
-
-[[package]]
 name = "regex"
-version = "1.3.9"
+version = "1.3.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9c3780fcf44b193bc4d09f36d2a3c87b251da4a046c87795a0d35f4f927ad8e6"
+checksum = "7f6946991529684867e47d86474e3a6d0c0ab9b82d5821e314b1ede31fa3a4b3"
 dependencies = [
  "aho-corasick",
  "memchr",
@@ -4076,21 +3760,9 @@
 
 [[package]]
 name = "regex-syntax"
-version = "0.6.18"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "26412eb97c6b088a6997e05f69403a802a92d520de2f8e63c2b65f9e0f47c4e8"
-
-[[package]]
-name = "region"
-version = "2.2.0"
+version = "0.6.17"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "877e54ea2adcd70d80e9179344c97f93ef0dffd6b03e1f4529e6e83ab2fa9ae0"
-dependencies = [
- "bitflags",
- "libc",
- "mach",
- "winapi 0.3.8",
-]
+checksum = "7fe5bd57d1d7414c6b5ed48563a2c855d995ff777729dcd91c369ec7fea395ae"
 
 [[package]]
 name = "remove_dir_all"
@@ -4099,38 +3771,17 @@
 checksum = "4a83fa3702a688b9359eccba92d153ac33fd2e8462f9e0e3fdf155239ea7792e"
 dependencies = [
  "winapi 0.3.8",
-]
-
-[[package]]
-name = "rental"
-version = "0.5.5"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8545debe98b2b139fb04cad8618b530e9b07c152d99a5de83c860b877d67847f"
-dependencies = [
- "rental-impl",
- "stable_deref_trait",
 ]
 
 [[package]]
-name = "rental-impl"
-version = "0.5.5"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "475e68978dc5b743f2f40d8e0a8fdc83f1c5e78cbf4b8fa5e74e73beebc340de"
-dependencies = [
- "proc-macro2",
- "quote 1.0.7",
- "syn 1.0.31",
-]
-
-[[package]]
 name = "ring"
-version = "0.16.14"
+version = "0.16.12"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "06b3fefa4f12272808f809a0af618501fdaba41a58963c5fb72238ab0be09603"
+checksum = "1ba5a8ec64ee89a76c98c549af81ff14813df09c3e6dc4766c3856da48597a0c"
 dependencies = [
  "cc",
+ "lazy_static",
  "libc",
- "once_cell",
  "spin",
  "untrusted",
  "web-sys",
@@ -4144,10 +3795,19 @@
 checksum = "cabe4fa914dec5870285fa7f71f602645da47c486e68486d2b4ceb4a343e90ac"
 
 [[package]]
+name = "rlp"
+version = "0.4.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4a7d3f9bed94764eac15b8f14af59fac420c236adaff743b7bcc88e265cb4345"
+dependencies = [
+ "rustc-hex",
+]
+
+[[package]]
 name = "rocksdb"
-version = "0.14.0"
+version = "0.13.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "61aa17a99a2413cd71c1106691bf59dad7de0cd5099127f90e9d99c429c40d4a"
+checksum = "12069b106981c6103d3eab7dd1c86751482d0779a520b7c14954c8b586c1e643"
 dependencies = [
  "libc",
  "librocksdb-sys",
@@ -4161,18 +3821,6 @@
 dependencies = [
  "libc",
  "winapi 0.3.8",
-]
-
-[[package]]
-name = "rust-argon2"
-version = "0.7.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2bc8af4bda8e1ff4932523b94d3dd20ee30a87232323eda55903ffd71d2fb017"
-dependencies = [
- "base64 0.11.0",
- "blake2b_simd",
- "constant_time_eq",
- "crossbeam-utils",
 ]
 
 [[package]]
@@ -4208,7 +3856,7 @@
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "c0d4a31f5d68413404705d6982529b0e11a9aacd4839d1d6222ee3b8cb4015e1"
 dependencies = [
- "base64 0.11.0",
+ "base64",
  "log",
  "ring",
  "sct",
@@ -4233,16 +3881,16 @@
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "4da5fcb054c46f5a5dff833b129285a93d3f0179531735e6c866e8cc307d2020"
 dependencies = [
- "futures 0.3.5",
+ "futures 0.3.4",
  "pin-project",
  "static_assertions",
 ]
 
 [[package]]
 name = "ryu"
-version = "1.0.5"
+version = "1.0.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "71d301d4193d031abdd79ff7e3dd721168a9572ef3fe51a1517aba235bd8f86e"
+checksum = "535622e6be132bccd223f4bb2b8ac8d53cda3c7a6394944d3b2b33fb974f9d76"
 
 [[package]]
 name = "safe-mix"
@@ -4255,48 +3903,49 @@
 
 [[package]]
 name = "sc-basic-authorship"
-version = "0.8.0-rc4"
-source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-rc4#00768a1f21a579c478fe5d4f51e1fa71f7db9fd4"
+version = "0.8.0-alpha.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5eeea19615c22c30accd79ca751b7db8642a3a88572432624a88c6754b6c7d33"
 dependencies = [
- "futures 0.3.5",
+ "futures 0.3.4",
  "futures-timer 3.0.2",
  "log",
  "parity-scale-codec",
  "sc-block-builder",
  "sc-client-api",
- "sc-proposer-metrics",
  "sc-telemetry",
- "sp-api",
+ "sp-api 2.0.0-alpha.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "sp-blockchain",
  "sp-consensus",
- "sp-core",
- "sp-inherents",
- "sp-runtime",
+ "sp-core 2.0.0-alpha.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "sp-inherents 2.0.0-alpha.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "sp-runtime 2.0.0-alpha.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "sp-transaction-pool",
- "substrate-prometheus-endpoint",
  "tokio-executor 0.2.0-alpha.6",
 ]
 
 [[package]]
 name = "sc-block-builder"
-version = "0.8.0-rc4"
-source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-rc4#00768a1f21a579c478fe5d4f51e1fa71f7db9fd4"
+version = "0.8.0-alpha.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "bd7b45adef0526ef295a9b7da4af933322df7119385a78c2e96c99b5d54fcc35"
 dependencies = [
  "parity-scale-codec",
  "sc-client-api",
- "sp-api",
+ "sp-api 2.0.0-alpha.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "sp-block-builder",
  "sp-blockchain",
  "sp-consensus",
- "sp-core",
- "sp-runtime",
- "sp-state-machine",
+ "sp-core 2.0.0-alpha.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "sp-runtime 2.0.0-alpha.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "sp-state-machine 0.8.0-alpha.6 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "sc-chain-spec"
-version = "2.0.0-rc4"
-source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-rc4#00768a1f21a579c478fe5d4f51e1fa71f7db9fd4"
+version = "2.0.0-alpha.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7d37957c58cb0cf1fa9fe1187447d16e4708a7a0541ee2c1226b2536f4241742"
 dependencies = [
  "impl-trait-for-tuples",
  "sc-chain-spec-derive",
@@ -4305,33 +3954,37 @@
  "serde",
  "serde_json",
  "sp-chain-spec",
- "sp-core",
- "sp-runtime",
+ "sp-core 2.0.0-alpha.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "sp-runtime 2.0.0-alpha.6 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "sc-chain-spec-derive"
-version = "2.0.0-rc4"
-source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-rc4#00768a1f21a579c478fe5d4f51e1fa71f7db9fd4"
+version = "2.0.0-alpha.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2703f02f31f53601ed0408df76939a2e1911ff64a146e7b15ed1be56193e91ba"
 dependencies = [
  "proc-macro-crate",
  "proc-macro2",
- "quote 1.0.7",
- "syn 1.0.31",
+ "quote 1.0.3",
+ "syn 1.0.17",
 ]
 
 [[package]]
 name = "sc-cli"
-version = "0.8.0-rc4"
-source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-rc4#00768a1f21a579c478fe5d4f51e1fa71f7db9fd4"
+version = "0.8.0-alpha.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "46513d8e34913e19ffb8663ff211528f5590712c3c4e69bfa41ca748120a2001"
 dependencies = [
  "ansi_term 0.12.1",
+ "app_dirs",
  "atty",
  "chrono",
+ "clap",
  "derive_more",
  "env_logger",
  "fdlimit",
- "futures 0.3.5",
+ "futures 0.3.4",
  "lazy_static",
  "log",
  "names",
@@ -4347,27 +4000,64 @@
  "sc-tracing",
  "serde_json",
  "sp-blockchain",
- "sp-core",
+ "sp-core 2.0.0-alpha.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "sp-keyring",
- "sp-panic-handler",
- "sp-runtime",
- "sp-state-machine",
+ "sp-panic-handler 2.0.0-alpha.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "sp-runtime 2.0.0-alpha.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "sp-state-machine 0.8.0-alpha.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "sp-utils",
- "sp-version",
+ "sp-version 2.0.0-alpha.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "structopt",
  "substrate-prometheus-endpoint",
  "time",
- "tokio 0.2.21",
+ "tokio 0.2.18",
 ]
 
 [[package]]
+name = "sc-client"
+version = "0.8.0-alpha.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9908c438f8e60d07c97a7f1d4ea8c6d31a498f283373c533f2006c032b9a4971"
+dependencies = [
+ "derive_more",
+ "fnv",
+ "futures 0.3.4",
+ "hash-db",
+ "hex-literal",
+ "kvdb",
+ "log",
+ "parity-scale-codec",
+ "parking_lot 0.10.2",
+ "sc-block-builder",
+ "sc-client-api",
+ "sc-executor",
+ "sc-telemetry",
+ "sp-api 2.0.0-alpha.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "sp-blockchain",
+ "sp-consensus",
+ "sp-core 2.0.0-alpha.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "sp-externalities 0.8.0-alpha.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "sp-inherents 2.0.0-alpha.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "sp-keyring",
+ "sp-runtime 2.0.0-alpha.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "sp-state-machine 0.8.0-alpha.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "sp-std 2.0.0-alpha.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "sp-trie 2.0.0-alpha.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "sp-utils",
+ "sp-version 2.0.0-alpha.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "substrate-prometheus-endpoint",
+ "tracing",
+]
+
+[[package]]
 name = "sc-client-api"
-version = "2.0.0-rc4"
-source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-rc4#00768a1f21a579c478fe5d4f51e1fa71f7db9fd4"
+version = "2.0.0-alpha.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b0a2271c80a792efffc4abfe9be8b87c9747721cfa4426f3b707283a431bbacd"
 dependencies = [
  "derive_more",
  "fnv",
- "futures 0.3.5",
+ "futures 0.3.4",
  "hash-db",
  "hex-literal",
  "kvdb",
@@ -4377,122 +4067,110 @@
  "parking_lot 0.10.2",
  "sc-executor",
  "sc-telemetry",
- "sp-api",
+ "sp-api 2.0.0-alpha.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "sp-blockchain",
  "sp-consensus",
- "sp-core",
- "sp-database",
- "sp-externalities",
- "sp-inherents",
+ "sp-core 2.0.0-alpha.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "sp-externalities 0.8.0-alpha.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "sp-inherents 2.0.0-alpha.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "sp-keyring",
- "sp-runtime",
- "sp-state-machine",
- "sp-std",
- "sp-storage",
+ "sp-runtime 2.0.0-alpha.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "sp-state-machine 0.8.0-alpha.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "sp-std 2.0.0-alpha.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "sp-storage 2.0.0-alpha.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "sp-transaction-pool",
- "sp-trie",
+ "sp-trie 2.0.0-alpha.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "sp-utils",
- "sp-version",
- "substrate-prometheus-endpoint",
+ "sp-version 2.0.0-alpha.6 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "sc-client-db"
-version = "0.8.0-rc4"
-source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-rc4#00768a1f21a579c478fe5d4f51e1fa71f7db9fd4"
+version = "0.8.0-alpha.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5b1ae5b4c8333cb751cd9bbc7ecf0eb1c55d4865fca6651066844febcec71618"
 dependencies = [
- "blake2-rfc",
  "hash-db",
  "kvdb",
  "kvdb-memorydb",
  "kvdb-rocksdb",
  "linked-hash-map",
  "log",
- "parity-db",
  "parity-scale-codec",
  "parity-util-mem",
  "parking_lot 0.10.2",
+ "sc-client",
  "sc-client-api",
  "sc-executor",
  "sc-state-db",
  "sp-blockchain",
  "sp-consensus",
- "sp-core",
- "sp-database",
- "sp-runtime",
- "sp-state-machine",
- "sp-trie",
+ "sp-core 2.0.0-alpha.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "sp-runtime 2.0.0-alpha.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "sp-state-machine 0.8.0-alpha.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "sp-trie 2.0.0-alpha.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "substrate-prometheus-endpoint",
 ]
 
 [[package]]
-name = "sc-consensus"
-version = "0.8.0-rc4"
-source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-rc4#00768a1f21a579c478fe5d4f51e1fa71f7db9fd4"
-dependencies = [
- "sc-client-api",
- "sp-blockchain",
- "sp-consensus",
- "sp-runtime",
-]
-
-[[package]]
 name = "sc-consensus-aura"
-version = "0.8.0-rc4"
-source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-rc4#00768a1f21a579c478fe5d4f51e1fa71f7db9fd4"
+version = "0.8.0-alpha.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a476e0650893a4e8c086c14f1ea5fde4a3de9f654a75c706f2c362406ee4d588"
 dependencies = [
  "derive_more",
- "futures 0.3.5",
+ "futures 0.3.4",
  "futures-timer 3.0.2",
  "log",
  "parity-scale-codec",
  "parking_lot 0.10.2",
  "sc-block-builder",
+ "sc-client",
  "sc-client-api",
  "sc-consensus-slots",
  "sc-keystore",
  "sc-telemetry",
- "sp-api",
- "sp-application-crypto",
+ "sp-api 2.0.0-alpha.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "sp-application-crypto 2.0.0-alpha.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "sp-block-builder",
  "sp-blockchain",
  "sp-consensus",
  "sp-consensus-aura",
- "sp-core",
- "sp-inherents",
- "sp-io",
- "sp-runtime",
+ "sp-core 2.0.0-alpha.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "sp-inherents 2.0.0-alpha.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "sp-io 2.0.0-alpha.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "sp-runtime 2.0.0-alpha.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "sp-timestamp",
- "sp-version",
- "substrate-prometheus-endpoint",
+ "sp-version 2.0.0-alpha.6 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "sc-consensus-slots"
-version = "0.8.0-rc4"
-source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-rc4#00768a1f21a579c478fe5d4f51e1fa71f7db9fd4"
+version = "0.8.0-alpha.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7ec4ede5a5b469f5cc1ac9fd304c7683f1e57638e5d9f8f23df6a98758b9cc24"
 dependencies = [
- "futures 0.3.5",
+ "futures 0.3.4",
  "futures-timer 3.0.2",
  "log",
  "parity-scale-codec",
  "parking_lot 0.10.2",
  "sc-client-api",
  "sc-telemetry",
- "sp-api",
- "sp-application-crypto",
+ "sp-api 2.0.0-alpha.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "sp-blockchain",
  "sp-consensus",
- "sp-core",
- "sp-inherents",
- "sp-runtime",
- "sp-state-machine",
+ "sp-core 2.0.0-alpha.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "sp-inherents 2.0.0-alpha.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "sp-runtime 2.0.0-alpha.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "sp-state-machine 0.8.0-alpha.6 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "sc-executor"
-version = "0.8.0-rc4"
-source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-rc4#00768a1f21a579c478fe5d4f51e1fa71f7db9fd4"
+version = "0.8.0-alpha.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f238a411de5e1cfe3b104f287aad0a48e4a39d9157171b7761d91d6d4a76610a"
 dependencies = [
  "derive_more",
  "lazy_static",
@@ -4503,83 +4181,62 @@
  "parking_lot 0.10.2",
  "sc-executor-common",
  "sc-executor-wasmi",
- "sc-executor-wasmtime",
- "sp-api",
- "sp-core",
- "sp-externalities",
- "sp-io",
- "sp-panic-handler",
- "sp-runtime-interface",
+ "sp-core 2.0.0-alpha.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "sp-externalities 0.8.0-alpha.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "sp-io 2.0.0-alpha.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "sp-panic-handler 2.0.0-alpha.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "sp-runtime-interface 2.0.0-alpha.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "sp-serializer",
- "sp-trie",
- "sp-version",
- "sp-wasm-interface",
+ "sp-trie 2.0.0-alpha.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "sp-version 2.0.0-alpha.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "sp-wasm-interface 2.0.0-alpha.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "wasmi",
 ]
 
 [[package]]
 name = "sc-executor-common"
-version = "0.8.0-rc4"
-source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-rc4#00768a1f21a579c478fe5d4f51e1fa71f7db9fd4"
+version = "0.8.0-alpha.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "549d94ce1316c168a72c26abf0bf3390ae76b1645030e2aac9ecf0542b04fa85"
 dependencies = [
  "derive_more",
  "log",
  "parity-scale-codec",
  "parity-wasm",
  "sp-allocator",
- "sp-core",
- "sp-runtime-interface",
+ "sp-core 2.0.0-alpha.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "sp-runtime-interface 2.0.0-alpha.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "sp-serializer",
- "sp-wasm-interface",
+ "sp-wasm-interface 2.0.0-alpha.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "wasmi",
 ]
 
 [[package]]
 name = "sc-executor-wasmi"
-version = "0.8.0-rc4"
-source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-rc4#00768a1f21a579c478fe5d4f51e1fa71f7db9fd4"
+version = "0.8.0-alpha.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0c7efc6978b59884e1593ec172fe5b1a909c980b0e495897c904da50616c3a7a"
 dependencies = [
  "log",
  "parity-scale-codec",
  "sc-executor-common",
  "sp-allocator",
- "sp-core",
- "sp-runtime-interface",
- "sp-wasm-interface",
+ "sp-core 2.0.0-alpha.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "sp-runtime-interface 2.0.0-alpha.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "sp-wasm-interface 2.0.0-alpha.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "wasmi",
 ]
 
 [[package]]
-name = "sc-executor-wasmtime"
-version = "0.8.0-rc4"
-source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-rc4#00768a1f21a579c478fe5d4f51e1fa71f7db9fd4"
-dependencies = [
- "cranelift-codegen",
- "cranelift-wasm",
- "log",
- "parity-scale-codec",
- "parity-wasm",
- "sc-executor-common",
- "scoped-tls",
- "sp-allocator",
- "sp-core",
- "sp-runtime-interface",
- "sp-wasm-interface",
- "substrate-wasmtime",
- "substrate-wasmtime-runtime",
- "wasmtime-environ",
-]
-
-[[package]]
 name = "sc-finality-grandpa"
-version = "0.8.0-rc4"
-source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-rc4#00768a1f21a579c478fe5d4f51e1fa71f7db9fd4"
+version = "0.8.0-alpha.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8bcf9e6787b6b421c2152e3d876105dec0c4cfa9fdac6bca54bec404d79a8593"
 dependencies = [
  "assert_matches",
- "derive_more",
  "finality-grandpa",
  "fork-tree",
- "futures 0.3.5",
+ "futures 0.3.4",
  "futures-timer 3.0.2",
  "log",
  "parity-scale-codec",
@@ -4587,99 +4244,77 @@
  "pin-project",
  "rand 0.7.3",
  "sc-block-builder",
+ "sc-client",
  "sc-client-api",
- "sc-consensus",
  "sc-keystore",
  "sc-network",
  "sc-network-gossip",
  "sc-telemetry",
  "serde_json",
- "sp-api",
- "sp-application-crypto",
- "sp-arithmetic",
+ "sp-api 2.0.0-alpha.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "sp-arithmetic 2.0.0-alpha.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "sp-blockchain",
  "sp-consensus",
- "sp-core",
+ "sp-core 2.0.0-alpha.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "sp-finality-grandpa",
  "sp-finality-tracker",
- "sp-inherents",
- "sp-runtime",
+ "sp-inherents 2.0.0-alpha.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "sp-runtime 2.0.0-alpha.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "sp-utils",
  "substrate-prometheus-endpoint",
 ]
 
 [[package]]
 name = "sc-informant"
-version = "0.8.0-rc4"
-source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-rc4#00768a1f21a579c478fe5d4f51e1fa71f7db9fd4"
+version = "0.8.0-alpha.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a03ec9890c64668809ac230921c504f18dc79bec75addf02da197b437d740dda"
 dependencies = [
  "ansi_term 0.12.1",
- "futures 0.3.5",
+ "futures 0.3.4",
  "log",
  "parity-util-mem",
- "parking_lot 0.10.2",
  "sc-client-api",
  "sc-network",
+ "sc-service",
  "sp-blockchain",
- "sp-runtime",
- "sp-transaction-pool",
- "sp-utils",
+ "sp-runtime 2.0.0-alpha.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "wasm-timer",
 ]
 
 [[package]]
 name = "sc-keystore"
-version = "2.0.0-rc4"
-source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-rc4#00768a1f21a579c478fe5d4f51e1fa71f7db9fd4"
+version = "2.0.0-alpha.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4fd2f3cb18368d58af4946e277b9e4bea605feb65872116130c1dd0905f341e3"
 dependencies = [
  "derive_more",
  "hex",
- "merlin",
  "parking_lot 0.10.2",
  "rand 0.7.3",
  "serde_json",
- "sp-application-crypto",
- "sp-core",
- "subtle 2.2.3",
-]
-
-[[package]]
-name = "sc-light"
-version = "2.0.0-rc4"
-source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-rc4#00768a1f21a579c478fe5d4f51e1fa71f7db9fd4"
-dependencies = [
- "hash-db",
- "lazy_static",
- "parity-scale-codec",
- "parking_lot 0.10.2",
- "sc-client-api",
- "sc-executor",
- "sp-api",
- "sp-blockchain",
- "sp-core",
- "sp-externalities",
- "sp-runtime",
- "sp-state-machine",
+ "sp-application-crypto 2.0.0-alpha.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "sp-core 2.0.0-alpha.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "subtle 2.2.2",
 ]
 
 [[package]]
 name = "sc-network"
-version = "0.8.0-rc4"
-source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-rc4#00768a1f21a579c478fe5d4f51e1fa71f7db9fd4"
+version = "0.8.0-alpha.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "fda92d4930bd77f3d215504ce16a3715585d8fc7c3d7be3c6f6891ee841f5686"
 dependencies = [
  "bitflags",
- "bs58",
  "bytes 0.5.4",
  "derive_more",
  "either",
  "erased-serde",
  "fnv",
  "fork-tree",
- "futures 0.3.5",
+ "futures 0.3.4",
  "futures-timer 3.0.2",
  "futures_codec",
  "hex",
- "ip_network",
  "libp2p",
  "linked-hash-map",
  "linked_hash_set",
@@ -4693,6 +4328,7 @@
  "prost-build",
  "rand 0.7.3",
  "sc-block-builder",
+ "sc-client",
  "sc-client-api",
  "sc-peerset",
  "serde",
@@ -4700,11 +4336,12 @@
  "slog",
  "slog_derive",
  "smallvec 0.6.13",
- "sp-arithmetic",
+ "sp-arithmetic 2.0.0-alpha.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "sp-blockchain",
  "sp-consensus",
- "sp-core",
- "sp-runtime",
+ "sp-consensus-babe",
+ "sp-core 2.0.0-alpha.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "sp-runtime 2.0.0-alpha.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "sp-utils",
  "substrate-prometheus-endpoint",
  "thiserror",
@@ -4716,29 +4353,32 @@
 
 [[package]]
 name = "sc-network-gossip"
-version = "0.8.0-rc4"
-source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-rc4#00768a1f21a579c478fe5d4f51e1fa71f7db9fd4"
+version = "0.8.0-alpha.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a61f954d0ce6279fe48df2d3d20d3e5589964d501509f85b323cb0fde37b1b90"
 dependencies = [
- "futures 0.3.5",
+ "futures 0.3.4",
  "futures-timer 3.0.2",
  "libp2p",
  "log",
  "lru",
  "sc-network",
- "sp-runtime",
+ "sp-runtime 2.0.0-alpha.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "sp-utils",
  "wasm-timer",
 ]
 
 [[package]]
 name = "sc-offchain"
-version = "2.0.0-rc4"
-source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-rc4#00768a1f21a579c478fe5d4f51e1fa71f7db9fd4"
+version = "2.0.0-alpha.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3544cf74f21323eac40c965a3ccda06d828875127e7966c0a05db9686460bf34"
 dependencies = [
  "bytes 0.5.4",
  "fnv",
- "futures 0.3.5",
+ "futures 0.3.4",
  "futures-timer 3.0.2",
- "hyper 0.13.6",
+ "hyper 0.13.4",
  "hyper-rustls",
  "log",
  "num_cpus",
@@ -4748,20 +4388,21 @@
  "sc-client-api",
  "sc-keystore",
  "sc-network",
- "sp-api",
- "sp-core",
+ "sp-api 2.0.0-alpha.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "sp-core 2.0.0-alpha.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "sp-offchain",
- "sp-runtime",
+ "sp-runtime 2.0.0-alpha.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "sp-utils",
  "threadpool",
 ]
 
 [[package]]
 name = "sc-peerset"
-version = "2.0.0-rc4"
-source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-rc4#00768a1f21a579c478fe5d4f51e1fa71f7db9fd4"
+version = "2.0.0-alpha.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "17b85bec68c3c1b4495b6eabdf14d1c4140a6d569b61af9c4f721f23eae42ed7"
 dependencies = [
- "futures 0.3.5",
+ "futures 0.3.4",
  "libp2p",
  "log",
  "serde_json",
@@ -4770,20 +4411,12 @@
 ]
 
 [[package]]
-name = "sc-proposer-metrics"
-version = "0.8.0-rc4"
-source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-rc4#00768a1f21a579c478fe5d4f51e1fa71f7db9fd4"
-dependencies = [
- "log",
- "substrate-prometheus-endpoint",
-]
-
-[[package]]
 name = "sc-rpc"
-version = "2.0.0-rc4"
-source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-rc4#00768a1f21a579c478fe5d4f51e1fa71f7db9fd4"
+version = "2.0.0-alpha.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "86f8136a2d703b2f4aeb970707ec83d55ae584c3c0af7aa10b3bd93b227a6fd0"
 dependencies = [
- "futures 0.3.5",
+ "futures 0.3.4",
  "hash-db",
  "jsonrpc-core",
  "jsonrpc-pubsub",
@@ -4791,32 +4424,34 @@
  "parity-scale-codec",
  "parking_lot 0.10.2",
  "sc-block-builder",
+ "sc-client",
  "sc-client-api",
  "sc-executor",
  "sc-keystore",
  "sc-rpc-api",
  "serde_json",
- "sp-api",
+ "sp-api 2.0.0-alpha.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "sp-blockchain",
  "sp-chain-spec",
- "sp-core",
+ "sp-core 2.0.0-alpha.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "sp-offchain",
  "sp-rpc",
- "sp-runtime",
+ "sp-runtime 2.0.0-alpha.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "sp-session",
- "sp-state-machine",
+ "sp-state-machine 0.8.0-alpha.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "sp-transaction-pool",
  "sp-utils",
- "sp-version",
+ "sp-version 2.0.0-alpha.6 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "sc-rpc-api"
-version = "0.8.0-rc4"
-source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-rc4#00768a1f21a579c478fe5d4f51e1fa71f7db9fd4"
+version = "0.8.0-alpha.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0c681fed8a6aab250f1fbb0848dee73c199bbcf94dc03f27edb57d2c50f0cff3"
 dependencies = [
  "derive_more",
- "futures 0.3.5",
+ "futures 0.3.4",
  "jsonrpc-core",
  "jsonrpc-core-client",
  "jsonrpc-derive",
@@ -4827,42 +4462,41 @@
  "serde",
  "serde_json",
  "sp-chain-spec",
- "sp-core",
+ "sp-core 2.0.0-alpha.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "sp-rpc",
- "sp-runtime",
+ "sp-runtime 2.0.0-alpha.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "sp-transaction-pool",
- "sp-version",
+ "sp-version 2.0.0-alpha.6 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "sc-rpc-server"
-version = "2.0.0-rc4"
-source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-rc4#00768a1f21a579c478fe5d4f51e1fa71f7db9fd4"
+version = "2.0.0-alpha.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "29d090ab799eaf3e41f36cdd9c79c2f5d1b0eeefc5f3422bc273084badd7ff62"
 dependencies = [
  "jsonrpc-core",
  "jsonrpc-http-server",
- "jsonrpc-ipc-server",
  "jsonrpc-pubsub",
  "jsonrpc-ws-server",
  "log",
  "serde",
  "serde_json",
- "sp-runtime",
+ "sp-runtime 2.0.0-alpha.6 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "sc-service"
-version = "0.8.0-rc4"
-source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-rc4#00768a1f21a579c478fe5d4f51e1fa71f7db9fd4"
+version = "0.8.0-alpha.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0b6863666dc415a261bb21dfe599403fb977720feb5bc6ebacf078f5f78c165b"
 dependencies = [
  "derive_more",
- "directories",
  "exit-future",
  "futures 0.1.29",
- "futures 0.3.5",
+ "futures 0.3.4",
+ "futures-diagnose",
  "futures-timer 3.0.2",
- "hash-db",
- "jsonrpc-pubsub",
  "lazy_static",
  "log",
  "netstat2",
@@ -4870,17 +4504,13 @@
  "parity-scale-codec",
  "parity-util-mem",
  "parking_lot 0.10.2",
- "pin-project",
  "procfs",
- "rand 0.7.3",
- "sc-block-builder",
  "sc-chain-spec",
+ "sc-client",
  "sc-client-api",
  "sc-client-db",
  "sc-executor",
- "sc-informant",
  "sc-keystore",
- "sc-light",
  "sc-network",
  "sc-offchain",
  "sc-rpc",
@@ -4891,32 +4521,27 @@
  "serde",
  "serde_json",
  "slog",
- "sp-api",
- "sp-application-crypto",
- "sp-block-builder",
+ "sp-api 2.0.0-alpha.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "sp-application-crypto 2.0.0-alpha.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "sp-blockchain",
  "sp-consensus",
- "sp-core",
- "sp-externalities",
- "sp-io",
- "sp-runtime",
+ "sp-core 2.0.0-alpha.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "sp-io 2.0.0-alpha.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "sp-runtime 2.0.0-alpha.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "sp-session",
- "sp-state-machine",
  "sp-transaction-pool",
- "sp-trie",
  "sp-utils",
- "sp-version",
  "substrate-prometheus-endpoint",
  "sysinfo",
- "tempfile",
  "tracing",
  "wasm-timer",
 ]
 
 [[package]]
 name = "sc-state-db"
-version = "0.8.0-rc4"
-source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-rc4#00768a1f21a579c478fe5d4f51e1fa71f7db9fd4"
+version = "0.8.0-alpha.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f31877c85414ed8e19a480940d7ae340832e7616208072cb43982fdcdd176021"
 dependencies = [
  "log",
  "parity-scale-codec",
@@ -4924,16 +4549,17 @@
  "parity-util-mem-derive",
  "parking_lot 0.10.2",
  "sc-client-api",
- "sp-core",
+ "sp-core 2.0.0-alpha.6 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "sc-telemetry"
-version = "2.0.0-rc4"
-source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-rc4#00768a1f21a579c478fe5d4f51e1fa71f7db9fd4"
+version = "2.0.0-alpha.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "fdaddc5a9aaeabbe68599ae2bfa4f247fa1617e8a119f4665884757052697035"
 dependencies = [
  "bytes 0.5.4",
- "futures 0.3.5",
+ "futures 0.3.4",
  "futures-timer 3.0.2",
  "libp2p",
  "log",
@@ -4951,36 +4577,36 @@
 
 [[package]]
 name = "sc-tracing"
-version = "2.0.0-rc4"
-source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-rc4#00768a1f21a579c478fe5d4f51e1fa71f7db9fd4"
+version = "2.0.0-alpha.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "75a0c0eecadf7c89b09e4e7290b301ffd8c3b30af4d1aa47d147f32f9d9e0b33"
 dependencies = [
  "erased-serde",
  "log",
  "parking_lot 0.10.2",
- "rustc-hash",
  "sc-telemetry",
  "serde",
  "serde_json",
  "slog",
- "sp-tracing",
  "tracing-core",
 ]
 
 [[package]]
 name = "sc-transaction-graph"
-version = "2.0.0-rc4"
-source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-rc4#00768a1f21a579c478fe5d4f51e1fa71f7db9fd4"
+version = "2.0.0-alpha.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7b7f1ad6be774288fd73818271d3041442956a149a461de22f97f12210fdc776"
 dependencies = [
  "derive_more",
- "futures 0.3.5",
+ "futures 0.3.4",
  "linked-hash-map",
  "log",
  "parity-util-mem",
  "parking_lot 0.10.2",
  "serde",
  "sp-blockchain",
- "sp-core",
- "sp-runtime",
+ "sp-core 2.0.0-alpha.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "sp-runtime 2.0.0-alpha.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "sp-transaction-pool",
  "sp-utils",
  "wasm-timer",
@@ -4988,11 +4614,12 @@
 
 [[package]]
 name = "sc-transaction-pool"
-version = "2.0.0-rc4"
-source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-rc4#00768a1f21a579c478fe5d4f51e1fa71f7db9fd4"
+version = "2.0.0-alpha.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ca9c7db165344a2d45dc1b7d0a52e1028198b25adba8406e05055f4c5e5626b8"
 dependencies = [
  "derive_more",
- "futures 0.3.5",
+ "futures 0.3.4",
  "futures-diagnose",
  "intervalier",
  "log",
@@ -5001,22 +4628,20 @@
  "parking_lot 0.10.2",
  "sc-client-api",
  "sc-transaction-graph",
- "sp-api",
+ "sp-api 2.0.0-alpha.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "sp-blockchain",
- "sp-core",
- "sp-runtime",
- "sp-tracing",
+ "sp-core 2.0.0-alpha.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "sp-runtime 2.0.0-alpha.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "sp-transaction-pool",
  "sp-utils",
- "substrate-prometheus-endpoint",
  "wasm-timer",
 ]
 
 [[package]]
 name = "schannel"
-version = "0.1.19"
+version = "0.1.18"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8f05ba609c234e60bee0d547fe94a4c7e9da733d1c962cf6e59efa4cd9c8bc75"
+checksum = "039c25b130bd8c1321ee2d7de7fde2659fa9c2744e4bb29711cfc852ea53cd19"
 dependencies = [
  "lazy_static",
  "winapi 0.3.8",
@@ -5036,41 +4661,15 @@
  "rand 0.7.3",
  "rand_core 0.5.1",
  "sha2",
- "subtle 2.2.3",
+ "subtle 2.2.2",
  "zeroize",
 ]
-
-[[package]]
-name = "scoped-tls"
-version = "1.0.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ea6a9290e3c9cf0f18145ef7ffa62d68ee0bf5fcd651017e586dc7fd5da448c2"
 
 [[package]]
 name = "scopeguard"
 version = "1.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "d29ab0c6d3fc0ee92fe66e2d99f700eab17a8d57d1c1d3b748380fb20baa78cd"
-
-[[package]]
-name = "scroll"
-version = "0.10.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "abb2332cb595d33f7edd5700f4cbf94892e680c7f0ae56adab58a35190b66cb1"
-dependencies = [
- "scroll_derive",
-]
-
-[[package]]
-name = "scroll_derive"
-version = "0.10.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e367622f934864ffa1c704ba2b82280aab856e3d8213c84c5720257eb34b15b9"
-dependencies = [
- "proc-macro2",
- "quote 1.0.7",
- "syn 1.0.31",
-]
 
 [[package]]
 name = "sct"
@@ -5084,9 +4683,9 @@
 
 [[package]]
 name = "security-framework"
-version = "0.4.4"
+version = "0.4.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "64808902d7d99f78eaddd2b4e2509713babc3dc3c85ad6f4c447680f3c01e535"
+checksum = "572dfa3a0785509e7a44b5b4bebcf94d41ba34e9ed9eb9df722545c3b3c4144a"
 dependencies = [
  "bitflags",
  "core-foundation",
@@ -5097,9 +4696,9 @@
 
 [[package]]
 name = "security-framework-sys"
-version = "0.4.3"
+version = "0.4.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "17bf11d99252f512695eb468de5516e5cf75455521e69dfe343f3b74e4748405"
+checksum = "8ddb15a5fec93b7021b8a9e96009c5d8d51c15673569f7c0f6b7204e5b7b404f"
 dependencies = [
  "core-foundation-sys",
  "libc",
@@ -5128,29 +4727,29 @@
 
 [[package]]
 name = "serde"
-version = "1.0.111"
+version = "1.0.106"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c9124df5b40cbd380080b2cc6ab894c040a3070d995f5c9dc77e18c34a8ae37d"
+checksum = "36df6ac6412072f67cf767ebbde4133a5b2e88e76dc6187fa7104cd16f783399"
 dependencies = [
  "serde_derive",
 ]
 
 [[package]]
 name = "serde_derive"
-version = "1.0.111"
+version = "1.0.106"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3f2c3ac8e6ca1e9c80b8be1023940162bf81ae3cffbb1809474152f2ce1eb250"
+checksum = "9e549e3abf4fb8621bd1609f11dfc9f5e50320802273b12f3811a67e6716ea6c"
 dependencies = [
  "proc-macro2",
- "quote 1.0.7",
- "syn 1.0.31",
+ "quote 1.0.3",
+ "syn 1.0.17",
 ]
 
 [[package]]
 name = "serde_json"
-version = "1.0.55"
+version = "1.0.51"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ec2c5d7e739bc07a3e73381a39d61fdb5f671c60c1df26a130690665803d8226"
+checksum = "da07b57ee2623368351e9a0488bb0b261322a15a6e0ae53e243cbdc0f4208da9"
 dependencies = [
  "itoa",
  "ryu",
@@ -5177,9 +4776,9 @@
 
 [[package]]
 name = "sha2"
-version = "0.8.2"
+version = "0.8.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a256f46ea78a0c0d9ff00077504903ac881a1dafdc20da66545699e7776b3e69"
+checksum = "27044adfd2e1f077f649f59deb9490d3941d674002f7d062870a60ebe9bd47a0"
 dependencies = [
  "block-buffer",
  "digest",
@@ -5201,6 +4800,16 @@
 ]
 
 [[package]]
+name = "shell32-sys"
+version = "0.1.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9ee04b46101f57121c9da2b151988283b6beb79b34f5bb29a58ee48cb695122c"
+dependencies = [
+ "winapi 0.2.8",
+ "winapi-build",
+]
+
+[[package]]
 name = "shlex"
 version = "0.1.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -5262,8 +4871,8 @@
 checksum = "a945ec7f7ce853e89ffa36be1e27dce9a43e82ff9093bf3461c30d5da74ed11b"
 dependencies = [
  "proc-macro2",
- "quote 1.0.7",
- "syn 1.0.31",
+ "quote 1.0.3",
+ "syn 1.0.17",
 ]
 
 [[package]]
@@ -5277,9 +4886,9 @@
 
 [[package]]
 name = "smallvec"
-version = "1.4.0"
+version = "1.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c7cb5678e1615754284ec264d9bb5b4c27d2018577fd90ac0ceb578591ed5ee4"
+checksum = "05720e22615919e4734f6a99ceae50d00226c3c5aca406e102ebc33298214e0a"
 
 [[package]]
 name = "snow"
@@ -5295,133 +4904,171 @@
  "ring",
  "rustc_version",
  "sha2",
- "subtle 2.2.3",
+ "subtle 2.2.2",
  "x25519-dalek",
 ]
 
 [[package]]
-name = "socket2"
-version = "0.3.12"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "03088793f677dce356f3ccc2edb1b314ad191ab702a5de3faf49304f7e104918"
-dependencies = [
- "cfg-if",
- "libc",
- "redox_syscall",
- "winapi 0.3.8",
-]
-
-[[package]]
 name = "soketto"
 version = "0.3.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "1c9dab3f95c9ebdf3a88268c19af668f637a3c5039c2c56ff2d40b1b2d64a25b"
 dependencies = [
- "base64 0.11.0",
+ "base64",
  "bytes 0.5.4",
  "flate2",
- "futures 0.3.5",
+ "futures 0.3.4",
  "http 0.2.1",
  "httparse",
  "log",
  "rand 0.7.3",
  "sha1",
- "smallvec 1.4.0",
+ "smallvec 1.3.0",
  "static_assertions",
  "thiserror",
 ]
 
 [[package]]
 name = "sp-allocator"
-version = "2.0.0-rc4"
-source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-rc4#00768a1f21a579c478fe5d4f51e1fa71f7db9fd4"
+version = "2.0.0-alpha.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6532c396c2d6727d9b0d3eee3edbcaf939e78a6ce944fa34c2b98d6a02a2485e"
 dependencies = [
  "derive_more",
  "log",
- "sp-core",
- "sp-std",
- "sp-wasm-interface",
+ "sp-core 2.0.0-alpha.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "sp-std 2.0.0-alpha.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "sp-wasm-interface 2.0.0-alpha.6 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "sp-api"
-version = "2.0.0-rc4"
-source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-rc4#00768a1f21a579c478fe5d4f51e1fa71f7db9fd4"
+version = "2.0.0-alpha.6"
+source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.6#67f354f57e738fa575775f7fa0fb903e8972182b"
 dependencies = [
  "hash-db",
  "parity-scale-codec",
- "sp-api-proc-macro",
- "sp-core",
- "sp-runtime",
- "sp-state-machine",
- "sp-std",
- "sp-version",
+ "sp-api-proc-macro 2.0.0-alpha.6 (git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.6)",
+ "sp-core 2.0.0-alpha.6 (git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.6)",
+ "sp-runtime 2.0.0-alpha.6 (git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.6)",
+ "sp-state-machine 0.8.0-alpha.6 (git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.6)",
+ "sp-std 2.0.0-alpha.6 (git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.6)",
+ "sp-version 2.0.0-alpha.6 (git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.6)",
 ]
 
 [[package]]
+name = "sp-api"
+version = "2.0.0-alpha.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f6a4df52a0c56d742fc75f4da486627c1b050be2ac87cc042c2c0246756f22d2"
+dependencies = [
+ "hash-db",
+ "parity-scale-codec",
+ "sp-api-proc-macro 2.0.0-alpha.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "sp-core 2.0.0-alpha.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "sp-runtime 2.0.0-alpha.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "sp-state-machine 0.8.0-alpha.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "sp-std 2.0.0-alpha.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "sp-version 2.0.0-alpha.6 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "sp-api-proc-macro"
+version = "2.0.0-alpha.6"
+source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.6#67f354f57e738fa575775f7fa0fb903e8972182b"
+dependencies = [
+ "blake2-rfc",
+ "proc-macro-crate",
+ "proc-macro2",
+ "quote 1.0.3",
+ "syn 1.0.17",
+]
+
+[[package]]
 name = "sp-api-proc-macro"
-version = "2.0.0-rc4"
-source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-rc4#00768a1f21a579c478fe5d4f51e1fa71f7db9fd4"
+version = "2.0.0-alpha.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ff834a833fd8beda20cd588341cdae52336f02f60aa6f0a34d9fd4d91975b369"
 dependencies = [
  "blake2-rfc",
  "proc-macro-crate",
  "proc-macro2",
- "quote 1.0.7",
- "syn 1.0.31",
+ "quote 1.0.3",
+ "syn 1.0.17",
 ]
 
 [[package]]
 name = "sp-application-crypto"
-version = "2.0.0-rc4"
-source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-rc4#00768a1f21a579c478fe5d4f51e1fa71f7db9fd4"
+version = "2.0.0-alpha.6"
+source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.6#67f354f57e738fa575775f7fa0fb903e8972182b"
+dependencies = [
+ "parity-scale-codec",
+ "serde",
+ "sp-core 2.0.0-alpha.6 (git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.6)",
+ "sp-io 2.0.0-alpha.6 (git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.6)",
+ "sp-std 2.0.0-alpha.6 (git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.6)",
+]
+
+[[package]]
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- "sp-api",
- "sp-inherents",
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  "sp-block-builder",
  "sp-consensus",
- "sp-runtime",
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+ "sp-runtime 2.0.0-alpha.6 (registry+https://github.com/rust-lang/crates.io-index)",
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@@ -5445,61 +5093,90 @@
 
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 dependencies = [
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@@ -5510,11 +5187,11 @@
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- "sp-externalities",
- "sp-runtime-interface",
- "sp-std",
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@@ -5524,142 +5201,211 @@
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+ "tiny-bip39",
+ "tiny-keccak",
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+ "wasmi",
+ "zeroize",
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 [[package]]
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+ "sp-trie 2.0.0-alpha.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "sp-wasm-interface 2.0.0-alpha.6 (registry+https://github.com/rust-lang/crates.io-index)",
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 [[package]]
-name = "sp-npos-elections"
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+name = "sp-keyring"
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 dependencies = [
- "parity-scale-codec",
- "serde",
- "sp-arithmetic",
- "sp-npos-elections-compact",
- "sp-std",
+ "lazy_static",
+ "sp-core 2.0.0-alpha.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "sp-runtime 2.0.0-alpha.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "strum",
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 [[package]]
-name = "sp-npos-elections-compact"
-version = "2.0.0-rc4"
-source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-rc4#00768a1f21a579c478fe5d4f51e1fa71f7db9fd4"
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 dependencies = [
- "proc-macro-crate",
- "proc-macro2",
- "quote 1.0.7",
- "syn 1.0.31",
+ "sp-api 2.0.0-alpha.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "sp-runtime 2.0.0-alpha.6 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
-name = "sp-offchain"
-version = "2.0.0-rc4"
-source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-rc4#00768a1f21a579c478fe5d4f51e1fa71f7db9fd4"
+name = "sp-panic-handler"
+version = "2.0.0-alpha.6"
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 dependencies = [
- "sp-api",
- "sp-core",
- "sp-runtime",
+ "backtrace",
+ "log",
 ]
 
 [[package]]
 name = "sp-panic-handler"
-version = "2.0.0-rc4"
-source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-rc4#00768a1f21a579c478fe5d4f51e1fa71f7db9fd4"
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 dependencies = [
  "backtrace",
  "log",
@@ -5667,19 +5413,19 @@
 
 [[package]]
 name = "sp-rpc"
-version = "2.0.0-rc4"
-source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-rc4#00768a1f21a579c478fe5d4f51e1fa71f7db9fd4"
+version = "2.0.0-alpha.6"
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+checksum = "9d29a58ef51317f96eec408b40c604ccfe8c7c3b9ecc2636e2a9c84a79fae53a"
 dependencies = [
  "serde",
- "sp-core",
+ "sp-core 2.0.0-alpha.6 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "sp-runtime"
-version = "2.0.0-rc4"
-source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-rc4#00768a1f21a579c478fe5d4f51e1fa71f7db9fd4"
+version = "2.0.0-alpha.6"
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 dependencies = [
- "either",
  "hash256-std-hasher",
  "impl-trait-for-tuples",
  "log",
@@ -5688,58 +5434,108 @@
  "paste",
  "rand 0.7.3",
  "serde",
- "sp-application-crypto",
- "sp-arithmetic",
- "sp-core",
- "sp-inherents",
- "sp-io",
- "sp-std",
+ "sp-application-crypto 2.0.0-alpha.6 (git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.6)",
+ "sp-arithmetic 2.0.0-alpha.6 (git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.6)",
+ "sp-core 2.0.0-alpha.6 (git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.6)",
+ "sp-inherents 2.0.0-alpha.6 (git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.6)",
+ "sp-io 2.0.0-alpha.6 (git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.6)",
+ "sp-std 2.0.0-alpha.6 (git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.6)",
+]
+
+[[package]]
+name = "sp-runtime"
+version = "2.0.0-alpha.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "cb1f98caf8bb20c7d69ba3097f3283ebc615f4a33e79ae0ca5934364be5776ac"
+dependencies = [
+ "hash256-std-hasher",
+ "impl-trait-for-tuples",
+ "log",
+ "parity-scale-codec",
+ "parity-util-mem",
+ "paste",
+ "rand 0.7.3",
+ "serde",
+ "sp-application-crypto 2.0.0-alpha.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "sp-arithmetic 2.0.0-alpha.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "sp-core 2.0.0-alpha.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "sp-inherents 2.0.0-alpha.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "sp-io 2.0.0-alpha.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "sp-std 2.0.0-alpha.6 (registry+https://github.com/rust-lang/crates.io-index)",
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 [[package]]
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+ "parity-scale-codec",
+ "primitive-types",
+ "sp-externalities 0.8.0-alpha.6 (git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.6)",
+ "sp-runtime-interface-proc-macro 2.0.0-alpha.6 (git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.6)",
+ "sp-std 2.0.0-alpha.6 (git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.6)",
+ "sp-wasm-interface 2.0.0-alpha.6 (git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.6)",
+ "static_assertions",
+]
+
+[[package]]
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  "primitive-types",
- "sp-externalities",
- "sp-runtime-interface-proc-macro",
- "sp-std",
- "sp-tracing",
- "sp-wasm-interface",
+ "sp-externalities 0.8.0-alpha.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "sp-runtime-interface-proc-macro 2.0.0-alpha.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "sp-std 2.0.0-alpha.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "sp-wasm-interface 2.0.0-alpha.6 (registry+https://github.com/rust-lang/crates.io-index)",
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 [[package]]
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+dependencies = [
+ "Inflector",
+ "proc-macro-crate",
+ "proc-macro2",
+ "quote 1.0.3",
+ "syn 1.0.17",
+]
+
+[[package]]
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+version = "2.0.0-alpha.6"
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 dependencies = [
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  "proc-macro-crate",
  "proc-macro2",
- "quote 1.0.7",
- "syn 1.0.31",
+ "quote 1.0.3",
+ "syn 1.0.17",
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 [[package]]
 name = "sp-sandbox"
-version = "0.8.0-rc4"
-source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-rc4#00768a1f21a579c478fe5d4f51e1fa71f7db9fd4"
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 dependencies = [
  "parity-scale-codec",
- "sp-core",
- "sp-io",
- "sp-std",
- "sp-wasm-interface",
+ "sp-core 2.0.0-alpha.6 (git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.6)",
+ "sp-io 2.0.0-alpha.6 (git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.6)",
+ "sp-std 2.0.0-alpha.6 (git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.6)",
+ "sp-wasm-interface 2.0.0-alpha.6 (git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.6)",
  "wasmi",
 ]
 
 [[package]]
 name = "sp-serializer"
-version = "2.0.0-rc4"
-source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-rc4#00768a1f21a579c478fe5d4f51e1fa71f7db9fd4"
+version = "2.0.0-alpha.6"
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+checksum = "f7b306e15eb54af25aef9d752c22778da3fa115945e47bf047545be2847cf814"
 dependencies = [
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@@ -5747,151 +5543,217 @@
 
 [[package]]
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-source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-rc4#00768a1f21a579c478fe5d4f51e1fa71f7db9fd4"
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 dependencies = [
- "parity-scale-codec",
- "sp-api",
- "sp-core",
- "sp-runtime",
- "sp-staking",
- "sp-std",
+ "sp-api 2.0.0-alpha.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "sp-core 2.0.0-alpha.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "sp-runtime 2.0.0-alpha.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "sp-std 2.0.0-alpha.6 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "sp-staking"
-version = "2.0.0-rc4"
-source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-rc4#00768a1f21a579c478fe5d4f51e1fa71f7db9fd4"
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 dependencies = [
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- "sp-runtime",
- "sp-std",
+ "sp-runtime 2.0.0-alpha.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "sp-std 2.0.0-alpha.6 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
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-source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-rc4#00768a1f21a579c478fe5d4f51e1fa71f7db9fd4"
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- "smallvec 1.4.0",
- "sp-core",
- "sp-externalities",
- "sp-panic-handler",
- "sp-trie",
+ "sp-core 2.0.0-alpha.6 (git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.6)",
+ "sp-externalities 0.8.0-alpha.6 (git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.6)",
+ "sp-panic-handler 2.0.0-alpha.6 (git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.6)",
+ "sp-trie 2.0.0-alpha.6 (git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.6)",
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 [[package]]
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+checksum = "bd5de28eb08ce52f45ed32257b324766183dfe4d74a29242b934365ff80911ca"
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+ "parking_lot 0.10.2",
+ "rand 0.7.3",
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+ "sp-externalities 0.8.0-alpha.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "sp-panic-handler 2.0.0-alpha.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "sp-trie 2.0.0-alpha.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "trie-db",
+ "trie-root",
+]
+
+[[package]]
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+
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+
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+ "impl-serde 0.2.3",
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+ "sp-debug-derive 2.0.0-alpha.6 (git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.6)",
+ "sp-std 2.0.0-alpha.6 (git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.6)",
+]
 
 [[package]]
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+ "sp-std 2.0.0-alpha.6 (registry+https://github.com/rust-lang/crates.io-index)",
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 [[package]]
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- "sp-api",
- "sp-inherents",
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+ "sp-inherents 2.0.0-alpha.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "sp-runtime 2.0.0-alpha.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "sp-std 2.0.0-alpha.6 (registry+https://github.com/rust-lang/crates.io-index)",
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 [[package]]
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-version = "2.0.0-rc4"
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-dependencies = [
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-
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 dependencies = [
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- "futures 0.3.5",
+ "futures 0.3.4",
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- "sp-api",
- "sp-blockchain",
- "sp-runtime",
+ "sp-api 2.0.0-alpha.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "sp-runtime 2.0.0-alpha.6 (registry+https://github.com/rust-lang/crates.io-index)",
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 [[package]]
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 dependencies = [
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  "memory-db",
  "parity-scale-codec",
- "sp-core",
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+ "sp-core 2.0.0-alpha.6 (git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.6)",
+ "sp-std 2.0.0-alpha.6 (git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.6)",
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 [[package]]
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+ "sp-std 2.0.0-alpha.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "trie-db",
+ "trie-root",
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+
+[[package]]
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-source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-rc4#00768a1f21a579c478fe5d4f51e1fa71f7db9fd4"
+version = "2.0.0-alpha.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ae3cd7ac8f6d105dd1d9483f7d2d20e0e77cecdfe0a7fe6d0bd0616cebb80ce3"
 dependencies = [
- "futures 0.3.5",
+ "futures 0.3.4",
  "futures-core",
- "futures-timer 3.0.2",
  "lazy_static",
  "prometheus",
 ]
 
 [[package]]
 name = "sp-version"
-version = "2.0.0-rc4"
-source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-rc4#00768a1f21a579c478fe5d4f51e1fa71f7db9fd4"
+version = "2.0.0-alpha.6"
+source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.6#67f354f57e738fa575775f7fa0fb903e8972182b"
+dependencies = [
+ "impl-serde 0.2.3",
+ "parity-scale-codec",
+ "serde",
+ "sp-runtime 2.0.0-alpha.6 (git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.6)",
+ "sp-std 2.0.0-alpha.6 (git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.6)",
+]
+
+[[package]]
+name = "sp-version"
+version = "2.0.0-alpha.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "319c37fa4aa91ee9ee9c20a3fab0d5b6b1bbe1dea997319c303f28a62f49765d"
 dependencies = [
  "impl-serde 0.2.3",
  "parity-scale-codec",
  "serde",
- "sp-runtime",
- "sp-std",
+ "sp-runtime 2.0.0-alpha.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "sp-std 2.0.0-alpha.6 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "sp-wasm-interface"
+version = "2.0.0-alpha.6"
+source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.6#67f354f57e738fa575775f7fa0fb903e8972182b"
+dependencies = [
+ "impl-trait-for-tuples",
+ "parity-scale-codec",
+ "sp-std 2.0.0-alpha.6 (git+https://github.com/paritytech/substrate.git?tag=v2.0.0-alpha.6)",
+ "wasmi",
 ]
 
 [[package]]
 name = "sp-wasm-interface"
-version = "2.0.0-rc4"
-source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-rc4#00768a1f21a579c478fe5d4f51e1fa71f7db9fd4"
+version = "2.0.0-alpha.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7584168f2785f6676727545a31a3cd97159d7023d968540b4881a98d73991900"
 dependencies = [
  "impl-trait-for-tuples",
  "parity-scale-codec",
- "sp-std",
+ "sp-std 2.0.0-alpha.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "wasmi",
 ]
 
@@ -5929,15 +5791,6 @@
 checksum = "d24114bfcceb867ca7f71a0d3fe45d45619ec47a6fbfa98cb14e14250bfa5d6d"
 dependencies = [
  "bytes 0.4.12",
-]
-
-[[package]]
-name = "string-interner"
-version = "0.7.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "fd710eadff449a1531351b0e43eb81ea404336fa2f56c777427ab0e32a4cf183"
-dependencies = [
- "serde",
 ]
 
 [[package]]
@@ -5948,9 +5801,9 @@
 
 [[package]]
 name = "structopt"
-version = "0.3.14"
+version = "0.3.13"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "863246aaf5ddd0d6928dfeb1a9ca65f505599e4e1b399935ef7e75107516b4ef"
+checksum = "ff6da2e8d107dfd7b74df5ef4d205c6aebee0706c647f6bc6a2d5789905c00fb"
 dependencies = [
  "clap",
  "lazy_static",
@@ -5959,15 +5812,15 @@
 
 [[package]]
 name = "structopt-derive"
-version = "0.4.7"
+version = "0.4.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d239ca4b13aee7a2142e6795cbd69e457665ff8037aed33b3effdc430d2f927a"
+checksum = "a489c87c08fbaf12e386665109dd13470dcc9c4583ea3e10dd2b4523e5ebd9ac"
 dependencies = [
  "heck",
  "proc-macro-error",
  "proc-macro2",
- "quote 1.0.7",
- "syn 1.0.31",
+ "quote 1.0.3",
+ "syn 1.0.17",
 ]
 
 [[package]]
@@ -5987,8 +5840,8 @@
 dependencies = [
  "heck",
  "proc-macro2",
- "quote 1.0.7",
- "syn 1.0.31",
+ "quote 1.0.3",
+ "syn 1.0.17",
 ]
 
 [[package]]
@@ -6005,119 +5858,33 @@
 
 [[package]]
 name = "substrate-build-script-utils"
-version = "2.0.0-rc4"
-source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-rc4#00768a1f21a579c478fe5d4f51e1fa71f7db9fd4"
+version = "2.0.0-alpha.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a0abd8ab46d560d0d5cffd8d016c6b75eb5df91885b1b226b819ab600f02237c"
 dependencies = [
  "platforms",
 ]
 
 [[package]]
 name = "substrate-prometheus-endpoint"
-version = "0.8.0-rc4"
-source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-rc4#00768a1f21a579c478fe5d4f51e1fa71f7db9fd4"
+version = "0.8.0-alpha.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "61cad984ef1fec55fe46843630566f98cde0ad3de07efbbf8a4f857b36fedf30"
 dependencies = [
  "async-std",
  "derive_more",
  "futures-util",
- "hyper 0.13.6",
+ "hyper 0.13.4",
  "log",
  "prometheus",
- "tokio 0.2.21",
+ "tokio 0.2.18",
 ]
 
 [[package]]
 name = "substrate-wasm-builder-runner"
-version = "1.0.6"
-source = "git+https://github.com/paritytech/substrate.git?tag=v2.0.0-rc4#00768a1f21a579c478fe5d4f51e1fa71f7db9fd4"
-
-[[package]]
-name = "substrate-wasmtime"
-version = "0.16.0-threadsafe.4"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6bd62264edc1a5f3ef44d86fb0c11c9fb142894b9a2da034f34afae482080d7a"
-dependencies = [
- "anyhow",
- "backtrace",
- "cfg-if",
- "lazy_static",
- "libc",
- "region",
- "rustc-demangle",
- "substrate-wasmtime-jit",
- "substrate-wasmtime-profiling",
- "substrate-wasmtime-runtime",
- "target-lexicon",
- "wasmparser 0.52.2",
- "wasmtime-environ",
- "wat",
- "winapi 0.3.8",
-]
-
-[[package]]
-name = "substrate-wasmtime-jit"
-version = "0.16.0-threadsafe.4"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4ce43c159d4f3ef6b19641e1ae045847fd202d8e2cc74df7ccb2b6475e069d4a"
-dependencies = [
- "anyhow",
- "cfg-if",
- "cranelift-codegen",
- "cranelift-entity",
- "cranelift-frontend",
- "cranelift-native",
- "cranelift-wasm",
- "gimli 0.20.0",
- "log",
- "more-asserts",
- "region",
- "substrate-wasmtime-profiling",
- "substrate-wasmtime-runtime",
- "target-lexicon",
- "thiserror",
- "wasmparser 0.52.2",
- "wasmtime-debug",
- "wasmtime-environ",
- "winapi 0.3.8",
-]
-
-[[package]]
-name = "substrate-wasmtime-profiling"
-version = "0.16.0-threadsafe.4"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c77f0ce539b5a09a54dc80a1cf0c7cd7e694df11029354fe50a2d5fe889bdb97"
-dependencies = [
- "anyhow",
- "cfg-if",
- "gimli 0.20.0",
- "lazy_static",
- "libc",
- "object 0.18.0",
- "scroll",
- "serde",
- "substrate-wasmtime-runtime",
- "target-lexicon",
- "wasmtime-environ",
-]
-
-[[package]]
-name = "substrate-wasmtime-runtime"
-version = "0.16.0-threadsafe.4"
+version = "1.0.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "46516af0a64a7d9b652c5aa7436b6ce13edfa54435a66ef177fc02d2283e2dc2"
-dependencies = [
- "backtrace",
- "cc",
- "cfg-if",
- "indexmap",
- "lazy_static",
- "libc",
- "memoffset",
- "more-asserts",
- "region",
- "thiserror",
- "wasmtime-environ",
- "winapi 0.3.8",
-]
+checksum = "e30c70de7e7d5fd404fe26db1e7a4d6b553e2760b1ac490f249c04a960c483b8"
 
 [[package]]
 name = "subtle"
@@ -6127,9 +5894,9 @@
 
 [[package]]
 name = "subtle"
-version = "2.2.3"
+version = "2.2.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "502d53007c02d7605a05df1c1a73ee436952781653da5d0bf57ad608f66932c1"
+checksum = "7c65d530b10ccaeac294f349038a597e435b18fb456aadd0840a623f83b9e941"
 
 [[package]]
 name = "syn"
@@ -6144,12 +5911,12 @@
 
 [[package]]
 name = "syn"
-version = "1.0.31"
+version = "1.0.17"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b5304cfdf27365b7585c25d4af91b35016ed21ef88f17ced89c7093b43dba8b6"
+checksum = "0df0eb663f387145cab623dea85b09c2c5b4b0aef44e945d928e682fce71bb03"
 dependencies = [
  "proc-macro2",
- "quote 1.0.7",
+ "quote 1.0.3",
  "unicode-xid 0.2.0",
 ]
 
@@ -6160,8 +5927,8 @@
 checksum = "7be3539f6c128a931cf19dcee741c1af532c7fd387baa739c03dd2e96479338a"
 dependencies = [
  "proc-macro2",
- "quote 1.0.7",
- "syn 1.0.31",
+ "quote 1.0.3",
+ "syn 1.0.17",
 ]
 
 [[package]]
@@ -6175,21 +5942,21 @@
 
 [[package]]
 name = "synstructure"
-version = "0.12.4"
+version = "0.12.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b834f2d66f734cb897113e34aaff2f1ab4719ca946f9a7358dba8f8064148701"
+checksum = "67656ea1dc1b41b1451851562ea232ec2e5a80242139f7e679ceccfb5d61f545"
 dependencies = [
  "proc-macro2",
- "quote 1.0.7",
- "syn 1.0.31",
+ "quote 1.0.3",
+ "syn 1.0.17",
  "unicode-xid 0.2.0",
 ]
 
 [[package]]
 name = "sysinfo"
-version = "0.13.4"
+version = "0.12.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1cac193374347e7c263c5f547524f36ff8ec6702d56c8799c8331d26dffe8c1e"
+checksum = "7ccb41798287e8e299a701b5560d886d6ca2c3e7115e9ea2cb68c123aec339b7"
 dependencies = [
  "cfg-if",
  "doc-comment",
@@ -6205,12 +5972,6 @@
 version = "0.2.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "f764005d11ee5f36500a149ace24e00e3da98b0158b3e2d53a7495660d3f4d60"
-
-[[package]]
-name = "target-lexicon"
-version = "0.10.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ab0e7238dcc7b40a7be719a25365910f6807bd864f4cce6b2e6b873658e2b19d"
 
 [[package]]
 name = "tempfile"
@@ -6246,22 +6007,22 @@
 
 [[package]]
 name = "thiserror"
-version = "1.0.19"
+version = "1.0.15"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b13f926965ad00595dd129fa12823b04bbf866e9085ab0a5f2b05b850fbfc344"
+checksum = "54b3d3d2ff68104100ab257bb6bb0cb26c901abe4bd4ba15961f3bf867924012"
 dependencies = [
  "thiserror-impl",
 ]
 
 [[package]]
 name = "thiserror-impl"
-version = "1.0.19"
+version = "1.0.15"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "893582086c2f98cde18f906265a65b5030a074b1046c674ae898be6519a7f479"
+checksum = "ca972988113b7715266f91250ddb98070d033c62a011fa0fcc57434a649310dd"
 dependencies = [
  "proc-macro2",
- "quote 1.0.7",
- "syn 1.0.31",
+ "quote 1.0.3",
+ "syn 1.0.17",
 ]
 
 [[package]]
@@ -6275,20 +6036,21 @@
 
 [[package]]
 name = "threadpool"
-version = "1.8.1"
+version = "1.7.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d050e60b33d41c19108b32cea32164033a9013fe3b46cbd4457559bfbf77afaa"
+checksum = "e2f0c90a5f3459330ac8bc0d2f879c693bb7a2f59689c1083fc4ef83834da865"
 dependencies = [
  "num_cpus",
 ]
 
 [[package]]
 name = "time"
-version = "0.1.43"
+version = "0.1.42"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ca8a50ef2360fbd1eeb0ecd46795a87a19024eb4b53c5dc916ca1fd95fe62438"
+checksum = "db8dcfca086c1143c9270ac42a2bbd8a7ee477b78ac8e45b19abfb0cbede4b6f"
 dependencies = [
  "libc",
+ "redox_syscall",
  "winapi 0.3.8",
 ]
 
@@ -6343,9 +6105,9 @@
 
 [[package]]
 name = "tokio"
-version = "0.2.21"
+version = "0.2.18"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d099fa27b9702bed751524694adbe393e18b36b204da91eb1cbbbbb4a5ee2d58"
+checksum = "34ef16d072d2b6dc8b4a56c70f5c5ced1a37752116f8e7c1e80c659aa7cb6713"
 dependencies = [
  "bytes 0.5.4",
  "fnv",
@@ -6436,19 +6198,6 @@
  "bytes 0.4.12",
  "futures 0.1.29",
  "log",
-]
-
-[[package]]
-name = "tokio-named-pipes"
-version = "0.1.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9d282d483052288b2308ba5ee795f5673b159c9bdf63c385a05609da782a5eae"
-dependencies = [
- "bytes 0.4.12",
- "futures 0.1.29",
- "mio",
- "mio-named-pipes",
- "tokio 0.1.22",
 ]
 
 [[package]]
@@ -6472,26 +6221,17 @@
 
 [[package]]
 name = "tokio-rustls"
-version = "0.13.1"
+version = "0.13.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "15cb62a0d2770787abc96e99c1cd98fcf17f94959f3af63ca85bdfb203f051b4"
+checksum = "4adb8b3e5f86b707f1b54e7c15b6de52617a823608ccda98a15d3a24222f265a"
 dependencies = [
  "futures-core",
  "rustls",
- "tokio 0.2.21",
+ "tokio 0.2.18",
  "webpki",
 ]
 
 [[package]]
-name = "tokio-service"
-version = "0.1.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "24da22d077e0f15f55162bdbdc661228c1581892f52074fb242678d015b45162"
-dependencies = [
- "futures 0.1.29",
-]
-
-[[package]]
 name = "tokio-sync"
 version = "0.1.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -6599,7 +6339,7 @@
  "futures-sink",
  "log",
  "pin-project-lite",
- "tokio 0.2.21",
+ "tokio 0.2.18",
 ]
 
 [[package]]
@@ -6619,9 +6359,9 @@
 
 [[package]]
 name = "tracing"
-version = "0.1.15"
+version = "0.1.13"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a41f40ed0e162c911ac6fcb53ecdc8134c46905fdbbae8c50add462a538b495f"
+checksum = "1721cc8cf7d770cc4257872507180f35a4797272f5962f24c806af9e7faf52ab"
 dependencies = [
  "cfg-if",
  "tracing-attributes",
@@ -6630,13 +6370,12 @@
 
 [[package]]
 name = "tracing-attributes"
-version = "0.1.8"
+version = "0.1.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "99bbad0de3fd923c9c3232ead88510b783e5a4d16a6154adffa3d53308de984c"
+checksum = "7fbad39da2f9af1cae3016339ad7f2c7a9e870f12e8fd04c4fd7ef35b30c0d2b"
 dependencies = [
- "proc-macro2",
- "quote 1.0.7",
- "syn 1.0.31",
+ "quote 1.0.3",
+ "syn 1.0.17",
 ]
 
 [[package]]
@@ -6650,15 +6389,15 @@
 
 [[package]]
 name = "trie-db"
-version = "0.21.0"
+version = "0.20.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "cb230c24c741993b04cfccbabb45acff6f6480c5f00d3ed8794ea43db3a9d727"
+checksum = "bcc309f34008563989045a4c4dbcc5770467f3a3785ee80a9b5cc0d83362475f"
 dependencies = [
  "hash-db",
  "hashbrown",
  "log",
  "rustc-hex",
- "smallvec 1.4.0",
+ "smallvec 1.3.0",
 ]
 
 [[package]]
@@ -6693,9 +6432,9 @@
 
 [[package]]
 name = "uint"
-version = "0.8.3"
+version = "0.8.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "173cd16430c206dc1a430af8a89a0e9c076cf15cb42b4aedb10e8cc8fee73681"
+checksum = "e75a4cdd7b87b28840dba13c483b9a88ee6bbf16ba5c951ee1ecfcf723078e0d"
 dependencies = [
  "byteorder",
  "crunchy",
@@ -6727,7 +6466,7 @@
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "5479532badd04e128284890390c1e876ef7a993d0570b3597ae43dfa1d59afa4"
 dependencies = [
- "smallvec 1.4.0",
+ "smallvec 1.3.0",
 ]
 
 [[package]]
@@ -6768,9 +6507,9 @@
 
 [[package]]
 name = "untrusted"
-version = "0.7.1"
+version = "0.7.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a156c684c91ea7d62626509bce3cb4e1d9ed5c4d978f7b4352658f96a4c26b4a"
+checksum = "60369ef7a31de49bcb3f6ca728d4ba7300d9a1658f94c727d4cab8c8d9f4aece"
 
 [[package]]
 name = "url"
@@ -6796,21 +6535,21 @@
 
 [[package]]
 name = "vcpkg"
-version = "0.2.10"
+version = "0.2.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6454029bf181f092ad1b853286f23e2c507d8e8194d01d92da4a55c274a5508c"
+checksum = "3fc439f2794e98976c88a2a2dafce96b930fe8010b0a256b3c2199a773933168"
 
 [[package]]
 name = "vec_map"
-version = "0.8.2"
+version = "0.8.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f1bddf1187be692e79c5ffeab891132dfb0f236ed36a43c7ed39f1165ee20191"
+checksum = "05c78687fb1a80548ae3250346c3db86a80a7cdd77bda190189f2d0a0987c81a"
 
 [[package]]
 name = "version_check"
-version = "0.9.2"
+version = "0.9.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b5a972e5669d67ba988ce3dc826706fb0a8b01471c088cb0b6110b805cc36aed"
+checksum = "078775d0255232fb988e6fccf26ddc9d1ac274299aaedcedce21c6f72cc533ce"
 
 [[package]]
 name = "void"
@@ -6847,9 +6586,9 @@
 
 [[package]]
 name = "wasm-bindgen"
-version = "0.2.63"
+version = "0.2.60"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4c2dc4aa152834bc334f506c1a06b866416a8b6697d5c9f75b9a689c8486def0"
+checksum = "2cc57ce05287f8376e998cbddfb4c8cb43b84a7ec55cf4551d7c00eef317a47f"
 dependencies = [
  "cfg-if",
  "wasm-bindgen-macro",
@@ -6857,24 +6596,24 @@
 
 [[package]]
 name = "wasm-bindgen-backend"
-version = "0.2.63"
+version = "0.2.60"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ded84f06e0ed21499f6184df0e0cb3494727b0c5da89534e0fcc55c51d812101"
+checksum = "d967d37bf6c16cca2973ca3af071d0a2523392e4a594548155d89a678f4237cd"
 dependencies = [
  "bumpalo",
  "lazy_static",
  "log",
  "proc-macro2",
- "quote 1.0.7",
- "syn 1.0.31",
+ "quote 1.0.3",
+ "syn 1.0.17",
  "wasm-bindgen-shared",
 ]
 
 [[package]]
 name = "wasm-bindgen-futures"
-version = "0.4.13"
+version = "0.4.10"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "64487204d863f109eb77e8462189d111f27cb5712cc9fdb3461297a76963a2f6"
+checksum = "7add542ea1ac7fdaa9dc25e031a6af33b7d63376292bd24140c637d00d1c312a"
 dependencies = [
  "cfg-if",
  "js-sys",
@@ -6884,32 +6623,32 @@
 
 [[package]]
 name = "wasm-bindgen-macro"
-version = "0.2.63"
+version = "0.2.60"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "838e423688dac18d73e31edce74ddfac468e37b1506ad163ffaf0a46f703ffe3"
+checksum = "8bd151b63e1ea881bb742cd20e1d6127cef28399558f3b5d415289bc41eee3a4"
 dependencies = [
- "quote 1.0.7",
+ "quote 1.0.3",
  "wasm-bindgen-macro-support",
 ]
 
 [[package]]
 name = "wasm-bindgen-macro-support"
-version = "0.2.63"
+version = "0.2.60"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3156052d8ec77142051a533cdd686cba889537b213f948cd1d20869926e68e92"
+checksum = "d68a5b36eef1be7868f668632863292e37739656a80fc4b9acec7b0bd35a4931"
 dependencies = [
  "proc-macro2",
- "quote 1.0.7",
- "syn 1.0.31",
+ "quote 1.0.3",
+ "syn 1.0.17",
  "wasm-bindgen-backend",
  "wasm-bindgen-shared",
 ]
 
 [[package]]
 name = "wasm-bindgen-shared"
-version = "0.2.63"
+version = "0.2.60"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c9ba19973a58daf4db6f352eda73dc0e289493cd29fb2632eb172085b6521acd"
+checksum = "daf76fe7d25ac79748a37538b7daeed1c7a6867c92d3245c12c6222e4a20d639"
 
 [[package]]
 name = "wasm-timer"
@@ -6917,7 +6656,7 @@
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "324c5e65a08699c9c4334ba136597ab22b85dccd4b65dd1e36ccf8f723a95b54"
 dependencies = [
- "futures 0.3.5",
+ "futures 0.3.4",
  "js-sys",
  "parking_lot 0.9.0",
  "pin-utils",
@@ -6948,88 +6687,13 @@
 checksum = "ea78c597064ba73596099281e2f4cfc019075122a65cdda3205af94f0b264d93"
 dependencies = [
  "parity-wasm",
-]
-
-[[package]]
-name = "wasmparser"
-version = "0.51.4"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "aeb1956b19469d1c5e63e459d29e7b5aa0f558d9f16fcef09736f8a265e6c10a"
-
-[[package]]
-name = "wasmparser"
-version = "0.52.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "733954023c0b39602439e60a65126fd31b003196d3a1e8e4531b055165a79b31"
-
-[[package]]
-name = "wasmtime-debug"
-version = "0.16.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d39ba645aee700b29ff0093028b4123556dd142a74973f04ed6225eedb40e77d"
-dependencies = [
- "anyhow",
- "faerie",
- "gimli 0.20.0",
- "more-asserts",
- "target-lexicon",
- "thiserror",
- "wasmparser 0.51.4",
- "wasmtime-environ",
 ]
 
 [[package]]
-name = "wasmtime-environ"
-version = "0.16.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ed54fd9d64dfeeee7c285fd126174a6b5e6d4efc7e5a1566fdb635e60ff6a74e"
-dependencies = [
- "anyhow",
- "base64 0.12.3",
- "bincode",
- "cranelift-codegen",
- "cranelift-entity",
- "cranelift-wasm",
- "directories",
- "errno",
- "file-per-thread-logger",
- "indexmap",
- "libc",
- "log",
- "more-asserts",
- "rayon",
- "serde",
- "sha2",
- "thiserror",
- "toml",
- "wasmparser 0.51.4",
- "winapi 0.3.8",
- "zstd",
-]
-
-[[package]]
-name = "wast"
-version = "21.0.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0b1844f66a2bc8526d71690104c0e78a8e59ffa1597b7245769d174ebb91deb5"
-dependencies = [
- "leb128",
-]
-
-[[package]]
-name = "wat"
-version = "1.0.22"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ce85d72b74242c340e9e3492cfb602652d7bb324c3172dd441b5577e39a2e18c"
-dependencies = [
- "wast",
-]
-
-[[package]]
 name = "web-sys"
-version = "0.3.40"
+version = "0.3.37"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7b72fe77fd39e4bd3eaa4412fd299a0be6b3dfe9d2597e2f1c20beb968f41d17"
+checksum = "2d6f51648d8c56c366144378a33290049eafdd784071077f6fe37dae64c1c4cb"
 dependencies = [
  "js-sys",
  "wasm-bindgen",
@@ -7037,9 +6701,9 @@
 
 [[package]]
 name = "webpki"
-version = "0.21.3"
+version = "0.21.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ab146130f5f790d45f82aeeb09e55a256573373ec64409fc19a6fb82fb1032ae"
+checksum = "f1f50e1972865d6b1adb54167d1c8ed48606004c2c9d0ea5f1eeb34d95e863ef"
 dependencies = [
  "ring",
  "untrusted",
@@ -7102,9 +6766,9 @@
 
 [[package]]
 name = "winapi-util"
-version = "0.1.5"
+version = "0.1.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "70ec6ce85bb158151cae5e5c87f95a8e97d2c0c4b001223f33a334e3ce5de178"
+checksum = "fa515c5163a99cc82bab70fd3bfdd36d827be85de63737b40fcef2ce084a436e"
 dependencies = [
  "winapi 0.3.8",
 ]
@@ -7155,12 +6819,18 @@
 ]
 
 [[package]]
+name = "xdg"
+version = "2.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d089681aa106a86fade1b0128fb5daf07d5867a509ab036d99988dec80429a57"
+
+[[package]]
 name = "yamux"
 version = "0.4.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "84300bb493cc878f3638b981c62b4632ec1a5c52daaa3036651e8c106d3b55ea"
 dependencies = [
- "futures 0.3.5",
+ "futures 0.3.4",
  "log",
  "nohash-hasher",
  "parking_lot 0.10.2",
@@ -7184,38 +6854,7 @@
 checksum = "de251eec69fc7c1bc3923403d18ececb929380e016afe103da75f396704f8ca2"
 dependencies = [
  "proc-macro2",
- "quote 1.0.7",
- "syn 1.0.31",
+ "quote 1.0.3",
+ "syn 1.0.17",
  "synstructure",
-]
-
-[[package]]
-name = "zstd"
-version = "0.5.3+zstd.1.4.5"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "01b32eaf771efa709e8308605bbf9319bf485dc1503179ec0469b611937c0cd8"
-dependencies = [
- "zstd-safe",
-]
-
-[[package]]
-name = "zstd-safe"
-version = "2.0.5+zstd.1.4.5"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1cfb642e0d27f64729a639c52db457e0ae906e7bc6f5fe8f5c453230400f1055"
-dependencies = [
- "libc",
- "zstd-sys",
-]
-
-[[package]]
-name = "zstd-sys"
-version = "1.4.17+zstd.1.4.5"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b89249644df056b522696b1bb9e7c18c87e8ffa3e2f0dc3b0155875d6498f01b"
-dependencies = [
- "cc",
- "glob",
- "itertools 0.9.0",
- "libc",
 ]
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,9 +1,8 @@
-[profile.release]
-panic = 'unwind'
-
 [workspace]
 members = [
     'node',
     'pallets/nft',
     'runtime',
 ]
+[profile.release]
+panic = 'unwind'
--- a/node/Cargo.toml
+++ b/node/Cargo.toml
@@ -1,128 +1,79 @@
 [package]
-authors = ['Substrate DevHub <https://github.com/substrate-developer-hub>']
+authors = ['Anonymous']
 build = 'build.rs'
 description = 'Substrate Node template'
 edition = '2018'
 homepage = 'https://substrate.dev'
 license = 'Unlicense'
 name = 'nft'
-repository = 'https://github.com/usetech-llc/nft_parachain/'
-version = '2.0.0-rc4'
+repository = 'https://github.com/paritytech/substrate/'
+version = '2.0.0-alpha.6'
 
 [package.metadata.docs.rs]
 targets = ['x86_64-unknown-linux-gnu']
-
-[[bin]]
-name = 'nft'
 
 [dependencies]
 futures = '0.3.4'
 log = '0.4.8'
-parking_lot = '0.10.0'
 structopt = '0.3.8'
-jsonrpc-core = '14.0.5'
 
-[dependencies.pallet-contracts-rpc]
-git = 'https://github.com/paritytech/substrate.git'
-version = '0.8.0-rc4'
-tag = 'v2.0.0-rc4'
-
-[dependencies.sc-rpc]
-git = 'https://github.com/paritytech/substrate.git'
-tag = 'v2.0.0-rc4'
-
 [dependencies.nft-runtime]
 path = '../runtime'
-version = '2.0.0-rc4'
+version = '2.0.0-alpha.6'
 
 [dependencies.sc-basic-authorship]
-git = 'https://github.com/paritytech/substrate.git'
-tag = 'v2.0.0-rc4'
-version = '0.8.0-rc4'
+version = '0.8.0-alpha.6'
 
 [dependencies.sc-cli]
-features = ['wasmtime']
-git = 'https://github.com/paritytech/substrate.git'
-tag = 'v2.0.0-rc4'
-version = '0.8.0-rc4'
+version = '0.8.0-alpha.6'
 
-[dependencies.sc-client-api]
-git = 'https://github.com/paritytech/substrate.git'
-tag = 'v2.0.0-rc4'
-version = '2.0.0-rc4'
+[dependencies.sc-client]
+version = '0.8.0-alpha.6'
 
-[dependencies.sc-consensus]
-git = 'https://github.com/paritytech/substrate.git'
-tag = 'v2.0.0-rc4'
-version = '0.8.0-rc4'
+[dependencies.sc-client-api]
+version = '2.0.0-alpha.6'
 
 [dependencies.sc-consensus-aura]
-git = 'https://github.com/paritytech/substrate.git'
-tag = 'v2.0.0-rc4'
-version = '0.8.0-rc4'
+version = '0.8.0-alpha.6'
 
 [dependencies.sc-executor]
-features = ['wasmtime']
-git = 'https://github.com/paritytech/substrate.git'
-tag = 'v2.0.0-rc4'
-version = '0.8.0-rc4'
+version = '0.8.0-alpha.6'
 
 [dependencies.sc-finality-grandpa]
-git = 'https://github.com/paritytech/substrate.git'
-tag = 'v2.0.0-rc4'
-version = '0.8.0-rc4'
+version = '0.8.0-alpha.6'
 
 [dependencies.sc-network]
-git = 'https://github.com/paritytech/substrate.git'
-tag = 'v2.0.0-rc4'
-version = '0.8.0-rc4'
+version = '0.8.0-alpha.6'
 
 [dependencies.sc-service]
-features = ['wasmtime']
-git = 'https://github.com/paritytech/substrate.git'
-tag = 'v2.0.0-rc4'
-version = '0.8.0-rc4'
+version = '0.8.0-alpha.6'
 
 [dependencies.sc-transaction-pool]
-git = 'https://github.com/paritytech/substrate.git'
-tag = 'v2.0.0-rc4'
-version = '2.0.0-rc4'
+version = '2.0.0-alpha.6'
 
 [dependencies.sp-consensus]
-git = 'https://github.com/paritytech/substrate.git'
-tag = 'v2.0.0-rc4'
-version = '0.8.0-rc4'
+version = '0.8.0-alpha.6'
 
 [dependencies.sp-consensus-aura]
-git = 'https://github.com/paritytech/substrate.git'
-tag = 'v2.0.0-rc4'
-version = '0.8.0-rc4'
+version = '0.8.0-alpha.6'
 
 [dependencies.sp-core]
-git = 'https://github.com/paritytech/substrate.git'
-tag = 'v2.0.0-rc4'
-version = '2.0.0-rc4'
+version = '2.0.0-alpha.6'
 
 [dependencies.sp-finality-grandpa]
-git = 'https://github.com/paritytech/substrate.git'
-tag = 'v2.0.0-rc4'
-version = '2.0.0-rc4'
+version = '2.0.0-alpha.6'
 
 [dependencies.sp-inherents]
-git = 'https://github.com/paritytech/substrate.git'
-tag = 'v2.0.0-rc4'
-version = '2.0.0-rc4'
+version = '2.0.0-alpha.6'
 
 [dependencies.sp-runtime]
-git = 'https://github.com/paritytech/substrate.git'
-tag = 'v2.0.0-rc4'
-version = '2.0.0-rc4'
+version = '2.0.0-alpha.6'
 
 [dependencies.sp-transaction-pool]
-git = 'https://github.com/paritytech/substrate.git'
-tag = 'v2.0.0-rc4'
-version = '2.0.0-rc4'
+version = '2.0.0-alpha.6'
+
 [build-dependencies.substrate-build-script-utils]
-git = 'https://github.com/paritytech/substrate.git'
-tag = 'v2.0.0-rc4'
-version = '2.0.0-rc4'
+version = '2.0.0-alpha.6'
+
+[[bin]]
+name = 'nft'
--- a/node/src/command.rs
+++ b/node/src/command.rs
@@ -1,24 +1,24 @@
+// Copyright 2017-2020 Parity Technologies (UK) Ltd.
 // This file is part of Substrate.
 
-// Copyright (C) 2017-2020 Parity Technologies (UK) Ltd.
-// SPDX-License-Identifier: Apache-2.0
+// Substrate is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
 
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-// 	http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
+// Substrate is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License
+// along with Substrate.  If not, see <http://www.gnu.org/licenses/>.
 
 use crate::chain_spec;
 use crate::cli::Cli;
 use crate::service;
 use sc_cli::SubstrateCli;
+use sp_consensus_aura::sr25519::AuthorityPair as AuraPair;
 
 impl SubstrateCli for Cli {
 	fn impl_name() -> &'static str {
--- a/node/src/lib.rs
+++ /dev/null
@@ -1,2 +0,0 @@
-pub mod chain_spec;
-pub mod service;
--- a/node/src/service.rs
+++ b/node/src/service.rs
@@ -2,17 +2,15 @@
 
 use std::sync::Arc;
 use std::time::Duration;
+use sc_client::LongestChain;
 use sc_client_api::ExecutorProvider;
-use sc_consensus::LongestChain;
 use nft_runtime::{self, opaque::Block, RuntimeApi};
 use sc_service::{error::{Error as ServiceError}, AbstractService, Configuration, ServiceBuilder};
 use sp_inherents::InherentDataProviders;
 use sc_executor::native_executor_instance;
 pub use sc_executor::NativeExecutor;
 use sp_consensus_aura::sr25519::{AuthorityPair as AuraPair};
-use sc_finality_grandpa::{
-	FinalityProofProvider as GrandpaFinalityProofProvider, StorageAndProofProvider, SharedVoterState,
-};
+use sc_finality_grandpa::{self, FinalityProofProvider as GrandpaFinalityProofProvider, StorageAndProofProvider};
 
 // Our native executor instance.
 native_executor_instance!(
@@ -27,82 +25,53 @@
 /// be able to perform chain operations.
 macro_rules! new_full_start {
 	($config:expr) => {{
-		use jsonrpc_core::IoHandler;
 		use std::sync::Arc;
-		use sp_consensus_aura::sr25519::AuthorityPair as AuraPair;
-
 		let mut import_setup = None;
 		let inherent_data_providers = sp_inherents::InherentDataProviders::new();
 
 		let builder = sc_service::ServiceBuilder::new_full::<
-			nft_runtime::opaque::Block,
-			nft_runtime::RuntimeApi,
-			crate::service::Executor
+		nft_runtime::opaque::Block, nft_runtime::RuntimeApi, crate::service::Executor
 		>($config)?
 			.with_select_chain(|_config, backend| {
-				Ok(sc_consensus::LongestChain::new(backend.clone()))
+				Ok(sc_client::LongestChain::new(backend.clone()))
 			})?
-			.with_transaction_pool(|builder| {
-				let pool_api = sc_transaction_pool::FullChainApi::new(
-					builder.client().clone(),
-				);
-				Ok(sc_transaction_pool::BasicPool::new(
-					builder.config().transaction_pool.clone(),
-					std::sync::Arc::new(pool_api),
-					builder.prometheus_registry(),
-				))
+			.with_transaction_pool(|config, client, _fetcher| {
+				let pool_api = sc_transaction_pool::FullChainApi::new(client.clone());
+				Ok(sc_transaction_pool::BasicPool::new(config, std::sync::Arc::new(pool_api)))
 			})?
-			.with_import_queue(|
-				_config,
-				client,
-				mut select_chain,
-				_transaction_pool,
-				spawn_task_handle,
-				registry,
-			| {
+			.with_import_queue(|_config, client, mut select_chain, _transaction_pool| {
 				let select_chain = select_chain.take()
 					.ok_or_else(|| sc_service::Error::SelectChainRequired)?;
 
-				let (grandpa_block_import, grandpa_link) = sc_finality_grandpa::block_import(
-					client.clone(),
-					&(client.clone() as Arc<_>),
-					select_chain,
-				)?;
+				let (grandpa_block_import, grandpa_link) =
+					sc_finality_grandpa::block_import(client.clone(), &(client.clone() as Arc<_>), select_chain)?;
 
 				let aura_block_import = sc_consensus_aura::AuraBlockImport::<_, _, _, AuraPair>::new(
 					grandpa_block_import.clone(), client.clone(),
 				);
 
-				let import_queue = sc_consensus_aura::import_queue::<_, _, _, AuraPair, _>(
+				let import_queue = sc_consensus_aura::import_queue::<_, _, _, AuraPair>(
 					sc_consensus_aura::slot_duration(&*client)?,
 					aura_block_import,
 					Some(Box::new(grandpa_block_import.clone())),
 					None,
 					client,
 					inherent_data_providers.clone(),
-					spawn_task_handle,
-					registry,
 				)?;
 
 				import_setup = Some((grandpa_block_import, grandpa_link));
 
 				Ok(import_queue)
-			})?
-			.with_rpc_extensions(|builder| -> Result<IoHandler<sc_rpc::Metadata>, _> {
-                let handler = pallet_contracts_rpc::Contracts::new(builder.client().clone());
-                let delegate = pallet_contracts_rpc::ContractsApi::to_delegate(handler);
-
-                let mut io = IoHandler::default();
-                io.extend_with(delegate);
-                Ok(io)
-            })?;
+			})?;
 
 		(builder, import_setup, inherent_data_providers)
 	}}
 }
 
 /// Builds a new service for a full client.
-pub fn new_full(config: Configuration) -> Result<impl AbstractService, ServiceError> {
+pub fn new_full(config: Configuration)
+	-> Result<impl AbstractService, ServiceError>
+{
 	let role = config.role.clone();
 	let force_authoring = config.force_authoring;
 	let name = config.network.node_name.clone();
@@ -120,14 +89,11 @@
 			let provider = client as Arc<dyn StorageAndProofProvider<_, _>>;
 			Ok(Arc::new(GrandpaFinalityProofProvider::new(backend, provider)) as _)
 		})?
-		.build_full()?;
+		.build()?;
 
 	if role.is_authority() {
-		let proposer = sc_basic_authorship::ProposerFactory::new(
-			service.client(),
-			service.transaction_pool(),
-			service.prometheus_registry().as_ref(),
-		);
+		let proposer =
+			sc_basic_authorship::ProposerFactory::new(service.client(), service.transaction_pool());
 
 		let client = service.client();
 		let select_chain = service.select_chain()
@@ -151,13 +117,13 @@
 
 		// the AURA authoring task is considered essential, i.e. if it
 		// fails we take down the service with it.
-		service.spawn_essential_task_handle().spawn_blocking("aura", aura);
+		service.spawn_essential_task("aura", aura);
 	}
 
 	// if the node isn't actively participating in consensus then it doesn't
 	// need a keystore, regardless of which protocol we use below.
 	let keystore = if role.is_authority() {
-		Some(service.keystore() as sp_core::traits::BareCryptoStorePtr)
+		Some(service.keystore())
 	} else {
 		None
 	};
@@ -187,13 +153,12 @@
 			inherent_data_providers: inherent_data_providers.clone(),
 			telemetry_on_connect: Some(service.telemetry_on_connect_stream()),
 			voting_rule: sc_finality_grandpa::VotingRulesBuilder::default().build(),
-			prometheus_registry: service.prometheus_registry(),
-			shared_voter_state: SharedVoterState::empty(),
+			prometheus_registry: service.prometheus_registry()
 		};
 
 		// the GRANDPA voter task is considered infallible, i.e.
 		// if it fails we take down the service with it.
-		service.spawn_essential_task_handle().spawn_blocking(
+		service.spawn_essential_task(
 			"grandpa-voter",
 			sc_finality_grandpa::run_grandpa_voter(grandpa_config)?
 		);
@@ -209,39 +174,26 @@
 }
 
 /// Builds a new service for a light client.
-pub fn new_light(config: Configuration) -> Result<impl AbstractService, ServiceError> {
+pub fn new_light(config: Configuration)
+	-> Result<impl AbstractService, ServiceError>
+{
 	let inherent_data_providers = InherentDataProviders::new();
 
 	ServiceBuilder::new_light::<Block, RuntimeApi, Executor>(config)?
 		.with_select_chain(|_config, backend| {
 			Ok(LongestChain::new(backend.clone()))
 		})?
-		.with_transaction_pool(|builder| {
-			let fetcher = builder.fetcher()
+		.with_transaction_pool(|config, client, fetcher| {
+			let fetcher = fetcher
 				.ok_or_else(|| "Trying to start light transaction pool without active fetcher")?;
 
-			let pool_api = sc_transaction_pool::LightChainApi::new(
-				builder.client().clone(),
-				fetcher.clone(),
-			);
+			let pool_api = sc_transaction_pool::LightChainApi::new(client.clone(), fetcher.clone());
 			let pool = sc_transaction_pool::BasicPool::with_revalidation_type(
-				builder.config().transaction_pool.clone(),
-				Arc::new(pool_api),
-				builder.prometheus_registry(),
-				sc_transaction_pool::RevalidationType::Light,
+				config, Arc::new(pool_api), sc_transaction_pool::RevalidationType::Light,
 			);
 			Ok(pool)
 		})?
-		.with_import_queue_and_fprb(|
-			_config,
-			client,
-			backend,
-			fetcher,
-			_select_chain,
-			_tx_pool,
-			spawn_task_handle,
-			prometheus_registry,
-		| {
+		.with_import_queue_and_fprb(|_config, client, backend, fetcher, _select_chain, _tx_pool| {
 			let fetch_checker = fetcher
 				.map(|fetcher| fetcher.checker().clone())
 				.ok_or_else(|| "Trying to start light import queue without active fetch checker")?;
@@ -255,15 +207,13 @@
 			let finality_proof_request_builder =
 				finality_proof_import.create_finality_proof_request_builder();
 
-			let import_queue = sc_consensus_aura::import_queue::<_, _, _, AuraPair, _>(
+			let import_queue = sc_consensus_aura::import_queue::<_, _, _, AuraPair>(
 				sc_consensus_aura::slot_duration(&*client)?,
 				grandpa_block_import,
 				None,
 				Some(Box::new(finality_proof_import)),
 				client,
 				inherent_data_providers.clone(),
-				spawn_task_handle,
-				prometheus_registry,
 			)?;
 
 			Ok((import_queue, finality_proof_request_builder))
@@ -273,5 +223,5 @@
 			let provider = client as Arc<dyn StorageAndProofProvider<_, _>>;
 			Ok(Arc::new(GrandpaFinalityProofProvider::new(backend, provider)) as _)
 		})?
-		.build_light()
+		.build()
 }
--- a/pallets/nft/Cargo.toml
+++ b/pallets/nft/Cargo.toml
@@ -1,12 +1,12 @@
 [package]
-authors = ['Substrate DevHub <https://github.com/substrate-developer-hub>']
-description = 'FRAME pallet template'
+authors = ['https://usetech.com/blockchain']
+description = 'NFT pallet'
 edition = '2018'
 homepage = 'https://usetech.com/blockchain'
 license = 'Unlicense'
 name = 'pallet-nft'
 repository = 'https://github.com/usetech-llc/nft_parachain/'
-version = '2.0.0-rc4'
+version = '2.0.0-alpha.6'
 
 [package.metadata.docs.rs]
 targets = ['x86_64-unknown-linux-gnu']
@@ -15,37 +15,31 @@
 default-features = false
 features = ['derive']
 package = 'parity-scale-codec'
-version = '1.3.1'
+version = '1.3.0'
 
+[dependencies.sp-std]
+default-features = false
+version = '2.0.0-alpha.6'
+
+[dependencies.sp-runtime]
+default-features = false
+version = '2.0.0-alpha.6'
+
 [dependencies.frame-support]
 default-features = false
-git = 'https://github.com/paritytech/substrate.git'
-tag = 'v2.0.0-rc4'
-version = '2.0.0-rc4'
+version = '2.0.0-alpha.6'
 
 [dependencies.frame-system]
 default-features = false
-git = 'https://github.com/paritytech/substrate.git'
-tag = 'v2.0.0-rc4'
-version = '2.0.0-rc4'
+version = '2.0.0-alpha.6'
 
 [dev-dependencies.sp-core]
 default-features = false
-git = 'https://github.com/paritytech/substrate.git'
-tag = 'v2.0.0-rc4'
-version = '2.0.0-rc4'
+version = '2.0.0-alpha.6'
 
 [dev-dependencies.sp-io]
 default-features = false
-git = 'https://github.com/paritytech/substrate.git'
-tag = 'v2.0.0-rc4'
-version = '2.0.0-rc4'
-
-[dependencies.sp-runtime]
-default-features = false
-git = 'https://github.com/paritytech/substrate.git'
-tag = 'v2.0.0-rc4'
-version = '2.0.0-rc4'
+version = '2.0.0-alpha.6'
 
 [features]
 default = ['std']
@@ -53,4 +47,7 @@
     'codec/std',
     'frame-support/std',
     'frame-system/std',
+    "sp-io/std",
+    "sp-runtime/std",
+    'sp-std/std',
 ]
--- a/pallets/nft/src/lib.rs
+++ b/pallets/nft/src/lib.rs
@@ -1,6 +1,5 @@
 #![cfg_attr(not(feature = "std"), no_std)]
 
-use codec::{Decode, Encode};
 /// A FRAME pallet template with necessary imports
 
 /// Feel free to remove or edit this file as needed.
@@ -9,7 +8,10 @@
 
 /// For more guidance on Substrate FRAME, see the example pallet
 /// https://github.com/paritytech/substrate/blob/master/frame/example/src/lib.rs
-use frame_support::{decl_event, decl_module, decl_storage, dispatch::DispatchResult, ensure};
+
+use codec::{Decode, Encode};
+
+use frame_support::{decl_module, decl_storage, decl_event, decl_error, dispatch::DispatchResult, ensure};
 use frame_system::{self as system, ensure_signed};
 use sp_runtime::sp_std::prelude::Vec;
 
@@ -47,16 +49,16 @@
 
 /// The pallet's configuration trait.
 pub trait Trait: system::Trait {
-    // Add other types and constants required to configure this pallet.
+	// Add other types and constants required to configure this pallet.
 
-    /// The overarching event type.
-    type Event: From<Event<Self>> + Into<<Self as system::Trait>::Event>;
+	/// The overarching event type.
+	type Event: From<Event<Self>> + Into<<Self as system::Trait>::Event>;
 }
 
 // This pallet's storage items.
 decl_storage! {
-    // It is important to update your storage name so that your pallet's
-    // storage items are isolated from other pallets.
+	// It is important to update your storage name so that your pallet's
+	// storage items are isolated from other pallets.
     trait Store for Module<T: Trait> as Nft {
 
         /// Next available collection ID
@@ -88,6 +90,16 @@
     }
 );
 
+// The pallet's errors
+decl_error! {
+	pub enum Error for Module<T: Trait> {
+		/// Value was None
+		NoneValue,
+		/// Value reached maximum and cannot be incremented further
+		StorageOverflow,
+	}
+}
+
 // The pallet's dispatchable functions.
 decl_module! {
     /// The module declaration.
@@ -106,7 +118,8 @@
         //
         // @param customDataSz size of custom data in each collection item
         // returns collection ID
-        #[weight = 0]
+        // TODO: later versions use "#[weight = 0]"
+        #[weight = frame_support::weights::SimpleDispatchInfo::default()]
         pub fn create_collection(   origin, 
                                     collection_name: Vec<u16>, 
                                     collection_description: Vec<u16>, 
@@ -155,7 +168,7 @@
             Ok(())
         }
 
-        #[weight = 0]
+        #[weight = frame_support::weights::SimpleDispatchInfo::default()]
         pub fn destroy_collection(origin, collection_id: u64) -> DispatchResult {
 
             let sender = ensure_signed(origin)?;
@@ -168,7 +181,7 @@
             Ok(())
         }
 
-        #[weight = 0]
+        #[weight = frame_support::weights::SimpleDispatchInfo::default()]
         pub fn change_collection_owner(origin, collection_id: u64, new_owner: T::AccountId) -> DispatchResult {
 
             let sender = ensure_signed(origin)?;
@@ -183,7 +196,7 @@
             Ok(())
         }
 
-        #[weight = 0]
+        #[weight = frame_support::weights::SimpleDispatchInfo::default()]
         pub fn add_collection_admin(origin, collection_id: u64, new_admin_id: T::AccountId) -> DispatchResult {
 
             let sender = ensure_signed(origin)?;
@@ -214,7 +227,7 @@
             Ok(())
         }
 
-        #[weight = 0]
+        #[weight = frame_support::weights::SimpleDispatchInfo::default()]
         pub fn remove_collection_admin(origin, collection_id: u64, account_id: T::AccountId) -> DispatchResult {
 
             let sender = ensure_signed(origin)?;
@@ -242,7 +255,7 @@
             Ok(())
         }
 
-        #[weight = 0]
+        #[weight = frame_support::weights::SimpleDispatchInfo::default()]
         pub fn create_item(origin, collection_id: u64, properties: Vec<u8>) -> DispatchResult {
 
             let sender = ensure_signed(origin)?;
@@ -287,7 +300,7 @@
             Ok(())
         }
 
-        #[weight = 0]
+        #[weight = frame_support::weights::SimpleDispatchInfo::default()]
         pub fn burn_item(origin, collection_id: u64, item_id: u64) -> DispatchResult {
 
             let sender = ensure_signed(origin)?;
@@ -324,7 +337,7 @@
             Ok(())
         }
 
-        #[weight = 0]
+        #[weight = frame_support::weights::SimpleDispatchInfo::default()]
         pub fn transfer(origin, collection_id: u64, item_id: u64, new_owner: T::AccountId) -> DispatchResult {
 
             let sender = ensure_signed(origin)?;
@@ -371,7 +384,7 @@
             Ok(())
         }
 
-        #[weight = 0]
+        #[weight = frame_support::weights::SimpleDispatchInfo::default()]
         pub fn approve(origin, approved: T::AccountId, collection_id: u64, item_id: u64) -> DispatchResult {
 
             let sender = ensure_signed(origin)?;
@@ -414,7 +427,7 @@
             Ok(())
         }
 
-        #[weight = 0]
+        #[weight = frame_support::weights::SimpleDispatchInfo::default()]
         pub fn transfer_from(origin, collection_id: u64, item_id: u64, new_owner: T::AccountId) -> DispatchResult {
 
             let no_perm_mes = "You do not have permissions to modify this collection";
@@ -427,7 +440,7 @@
             Ok(())
         }
 
-        #[weight = 0]
+        #[weight = frame_support::weights::SimpleDispatchInfo::default()]
         pub fn safe_transfer_from(origin, collection_id: u64, item_id: u64, new_owner: T::AccountId) -> DispatchResult {
 
             let no_perm_mes = "You do not have permissions to modify this collection";
@@ -444,7 +457,6 @@
     }
 }
 
-
 impl<T: Trait> Module<T> {
     fn add_token_index(collection_id: u64, item_index: u64, owner: T::AccountId) -> DispatchResult {
         
@@ -494,4 +506,4 @@
         
         Ok(())
     }
-}
\ No newline at end of file
+}
--- a/pallets/nft/src/mock.rs
+++ b/pallets/nft/src/mock.rs
@@ -16,8 +16,8 @@
 };
 
 impl_outer_origin! {
-    pub enum Origin for Test {
-    }
+	pub enum Origin for Test {
+	}
 }
 
 // For testing the pallet, we construct most of a mock runtime. This means
@@ -26,41 +26,41 @@
 #[derive(Clone, Eq, PartialEq)]
 pub struct Test;
 parameter_types! {
-    pub const BlockHashCount: u64 = 250;
-    pub const MaximumBlockWeight: Weight = 1024;
-    pub const MaximumBlockLength: u32 = 2 * 1024;
-    pub const AvailableBlockRatio: Perbill = Perbill::from_percent(75);
+	pub const BlockHashCount: u64 = 250;
+	pub const MaximumBlockWeight: Weight = 1024;
+	pub const MaximumBlockLength: u32 = 2 * 1024;
+	pub const AvailableBlockRatio: Perbill = Perbill::from_percent(75);
     pub const MaximumExtrinsicWeight: Weight = 10 * WEIGHT_PER_SECOND;
 }
 
 impl system::Trait for Test {
-    type Origin = Origin;
-    type Call = ();
-    type Index = u64;
-    type BlockNumber = u64;
+	type Origin = Origin;
+	type Call = ();
+	type Index = u64;
+	type BlockNumber = u64;
     type BaseCallFilter = ();
     type DbWeight = RocksDbWeight;
     type BlockExecutionWeight = BlockExecutionWeight;
-    type Hash = H256;
-    type Hashing = BlakeTwo256;
-    type AccountId = u64;
-    type Lookup = IdentityLookup<Self::AccountId>;
-    type Header = Header;
-    type Event = ();
-    type BlockHashCount = BlockHashCount;
+	type Hash = H256;
+	type Hashing = BlakeTwo256;
+	type AccountId = u64;
+	type Lookup = IdentityLookup<Self::AccountId>;
+	type Header = Header;
+	type Event = ();
+	type BlockHashCount = BlockHashCount;
     type ExtrinsicBaseWeight = ExtrinsicBaseWeight;
-    type MaximumExtrinsicWeight = MaximumExtrinsicWeight;
-    type MaximumBlockWeight = MaximumBlockWeight;
-    type MaximumBlockLength = MaximumBlockLength;
-    type AvailableBlockRatio = AvailableBlockRatio;
-    type Version = ();
-    type ModuleToIndex = ();
-    type AccountData = ();
-    type OnNewAccount = ();
-    type OnKilledAccount = ();
+	type MaximumBlockWeight = MaximumBlockWeight;
+	type MaximumBlockLength = MaximumBlockLength;
+	type AvailableBlockRatio = AvailableBlockRatio;
+	type Version = ();
+	type ModuleToIndex = ();
+	type AccountData = ();
+	type OnNewAccount = ();
+	type OnKilledAccount = ();
 }
+
 impl Trait for Test {
-    type Event = ();
+	type Event = ();
 }
 
 pub type TemplateModule = Module<Test>;
@@ -68,8 +68,8 @@
 // This function basically just builds a genesis storage key/value store according to
 // our desired mockup.
 pub fn new_test_ext() -> sp_io::TestExternalities {
-    system::GenesisConfig::default()
-        .build_storage::<Test>()
-        .unwrap()
-        .into()
+	system::GenesisConfig::default()
+		.build_storage::<Test>()
+		.unwrap()
+		.into()
 }
--- a/pallets/nft/src/tests.rs
+++ b/pallets/nft/src/tests.rs
@@ -1,7 +1,8 @@
 // Tests to be written here
-use crate::mock::*;
-use frame_support::{assert_noop, assert_ok};
 
+use crate::{Error, mock::*};
+use frame_support::{assert_ok, assert_noop};
+
 #[test]
 fn create_collection_test() {
     new_test_ext().execute_with(|| {
--- a/runtime/Cargo.toml
+++ b/runtime/Cargo.toml
@@ -27,76 +27,64 @@
     'sudo/std',
     'system/std',
     'timestamp/std',
-    'staking/std',
     'transaction-payment/std',
     'nft/std',
 ]
+
 [dependencies.aura]
 default-features = false
-git = 'https://github.com/paritytech/substrate.git'
 package = 'pallet-aura'
-tag = 'v2.0.0-rc4'
-version = '2.0.0-rc4'
+version = '2.0.0-alpha.6'
 
 [dependencies.balances]
 default-features = false
-git = 'https://github.com/paritytech/substrate.git'
 package = 'pallet-balances'
-tag = 'v2.0.0-rc4'
-version = '2.0.0-rc4'
+version = '2.0.0-alpha.6'
 
 [dependencies.codec]
 default-features = false
 features = ['derive']
 package = 'parity-scale-codec'
-version = '1.3.1'
+version = '1.3.0'
 
 [dependencies.contracts]
 git = 'https://github.com/paritytech/substrate.git'
 default-features = false
 package = 'pallet-contracts'
-tag = 'v2.0.0-rc4'
-version = '2.0.0-rc4'
+tag = 'v2.0.0-alpha.6'
+version = '2.0.0-alpha.6'
 
 [dependencies.contracts-primitives]
 git = 'https://github.com/paritytech/substrate.git'
 default-features = false
 package = 'pallet-contracts-primitives'
-tag = 'v2.0.0-rc4'
-version = '2.0.0-rc4'
+tag = 'v2.0.0-alpha.6'
+version = '2.0.0-alpha.6'
 
 [dependencies.contracts-rpc-runtime-api]
 git = 'https://github.com/paritytech/substrate.git'
 default-features = false
 package = 'pallet-contracts-rpc-runtime-api'
-version = '0.8.0-rc4'
-tag = 'v2.0.0-rc4'
+tag = 'v2.0.0-alpha.6'
+version = '0.8.0-alpha.6'
 
 [dependencies.frame-executive]
 default-features = false
-git = 'https://github.com/paritytech/substrate.git'
-tag = 'v2.0.0-rc4'
-version = '2.0.0-rc4'
+version = '2.0.0-alpha.6'
 
 [dependencies.frame-support]
 default-features = false
-git = 'https://github.com/paritytech/substrate.git'
-tag = 'v2.0.0-rc4'
-version = '2.0.0-rc4'
+version = '2.0.0-alpha.6'
 
 [dependencies.grandpa]
 default-features = false
-git = 'https://github.com/paritytech/substrate.git'
 package = 'pallet-grandpa'
-tag = 'v2.0.0-rc4'
-version = '2.0.0-rc4'
+version = '2.0.0-alpha.6'
 
 [dependencies.randomness-collective-flip]
 default-features = false
-git = 'https://github.com/paritytech/substrate.git'
 package = 'pallet-randomness-collective-flip'
-tag = 'v2.0.0-rc4'
-version = '2.0.0-rc4'
+version = '2.0.0-alpha.6'
 
 [dependencies.serde]
 features = ['derive']
@@ -105,117 +93,77 @@
 
 [dependencies.sp-api]
 default-features = false
-git = 'https://github.com/paritytech/substrate.git'
-tag = 'v2.0.0-rc4'
-version = '2.0.0-rc4'
+version = '2.0.0-alpha.6'
 
 [dependencies.sp-block-builder]
 default-features = false
-git = 'https://github.com/paritytech/substrate.git'
-tag = 'v2.0.0-rc4'
-version = '2.0.0-rc4'
+version = '2.0.0-alpha.6'
 
 [dependencies.sp-consensus-aura]
 default-features = false
-git = 'https://github.com/paritytech/substrate.git'
-tag = 'v2.0.0-rc4'
-version = '0.8.0-rc4'
+version = '0.8.0-alpha.6'
 
 [dependencies.sp-core]
 default-features = false
-git = 'https://github.com/paritytech/substrate.git'
-tag = 'v2.0.0-rc4'
-version = '2.0.0-rc4'
+version = '2.0.0-alpha.6'
 
 [dependencies.sp-inherents]
 default-features = false
-git = 'https://github.com/paritytech/substrate.git'
-tag = 'v2.0.0-rc4'
-version = '2.0.0-rc4'
+version = '2.0.0-alpha.6'
 
 [dependencies.sp-io]
 default-features = false
-git = 'https://github.com/paritytech/substrate.git'
-tag = 'v2.0.0-rc4'
-version = '2.0.0-rc4'
+version = '2.0.0-alpha.6'
 
 [dependencies.sp-offchain]
 default-features = false
-git = 'https://github.com/paritytech/substrate.git'
-tag = 'v2.0.0-rc4'
-version = '2.0.0-rc4'
+version = '2.0.0-alpha.6'
 
 [dependencies.sp-runtime]
 default-features = false
-git = 'https://github.com/paritytech/substrate.git'
-tag = 'v2.0.0-rc4'
-version = '2.0.0-rc4'
+version = '2.0.0-alpha.6'
 
 [dependencies.sp-session]
 default-features = false
-git = 'https://github.com/paritytech/substrate.git'
-tag = 'v2.0.0-rc4'
-version = '2.0.0-rc4'
+version = '2.0.0-alpha.6'
 
 [dependencies.sp-std]
 default-features = false
-git = 'https://github.com/paritytech/substrate.git'
-tag = 'v2.0.0-rc4'
-version = '2.0.0-rc4'
+version = '2.0.0-alpha.6'
 
 [dependencies.sp-transaction-pool]
 default-features = false
-git = 'https://github.com/paritytech/substrate.git'
-tag = 'v2.0.0-rc4'
-version = '2.0.0-rc4'
+version = '2.0.0-alpha.6'
 
 [dependencies.sp-version]
 default-features = false
-git = 'https://github.com/paritytech/substrate.git'
-tag = 'v2.0.0-rc4'
-version = '2.0.0-rc4'
+version = '2.0.0-alpha.6'
 
 [dependencies.sudo]
 default-features = false
-git = 'https://github.com/paritytech/substrate.git'
 package = 'pallet-sudo'
-tag = 'v2.0.0-rc4'
-version = '2.0.0-rc4'
+version = '2.0.0-alpha.6'
 
 [dependencies.system]
 default-features = false
-git = 'https://github.com/paritytech/substrate.git'
 package = 'frame-system'
-tag = 'v2.0.0-rc4'
-version = '2.0.0-rc4'
+version = '2.0.0-alpha.6'
 
 [dependencies.nft]
 default-features = false
 package = 'pallet-nft'
 path = '../pallets/nft'
-version = '2.0.0-rc4'
+version = '2.0.0-alpha.6'
 
 [dependencies.timestamp]
 default-features = false
-git = 'https://github.com/paritytech/substrate.git'
 package = 'pallet-timestamp'
-tag = 'v2.0.0-rc4'
-version = '2.0.0-rc4'
-
-
-[dependencies.staking]
-default-features = false
-git = 'https://github.com/paritytech/substrate.git'
-package = 'pallet-staking'
-tag = 'v2.0.0-rc4'
-version = '2.0.0-rc4'
+version = '2.0.0-alpha.6'
 
 [dependencies.transaction-payment]
 default-features = false
-git = 'https://github.com/paritytech/substrate.git'
 package = 'pallet-transaction-payment'
-tag = 'v2.0.0-rc4'
-version = '2.0.0-rc4'
+version = '2.0.0-alpha.6'
 
 [package]
 authors = ['UseTech']
@@ -224,13 +172,11 @@
 license = 'Unlicense'
 name = 'nft-runtime'
 repository = 'https://github.com/usetech-llc/nft_parachain/'
-version = '2.0.0-rc4'
+version = '2.0.0-alpha.6'
 
 [package.metadata.docs.rs]
 targets = ['x86_64-unknown-linux-gnu']
 
 [build-dependencies.wasm-builder-runner]
-git = 'https://github.com/paritytech/substrate.git'
 package = 'substrate-wasm-builder-runner'
-tag = 'v2.0.0-rc4'
 version = '1.0.5'
--- a/runtime/build.rs
+++ b/runtime/build.rs
@@ -3,7 +3,7 @@
 fn main() {
 	WasmBuilder::new()
 		.with_current_project()
-		.with_wasm_builder_from_crates("1.0.11")
+		.with_wasm_builder_from_crates("1.0.9")
 		.export_heap_base()
 		.import_memory()
 		.build()
--- a/runtime/src/lib.rs
+++ b/runtime/src/lib.rs
@@ -9,17 +9,17 @@
 include!(concat!(env!("OUT_DIR"), "/wasm_binary.rs"));
 
 use sp_std::prelude::*;
-use sp_core::{crypto::KeyTypeId, OpaqueMetadata};
+use sp_core::OpaqueMetadata;
 use sp_runtime::{
 	ApplyExtrinsicResult, generic, create_runtime_str, impl_opaque_keys, MultiSignature,
 	transaction_validity::{TransactionValidity, TransactionSource},
 };
 use sp_runtime::traits::{
-	BlakeTwo256, Block as BlockT, IdentityLookup, Verify, IdentifyAccount, NumberFor, Saturating,
+	BlakeTwo256, Block as BlockT, IdentityLookup, Verify, ConvertInto, IdentifyAccount
 };
 use sp_api::impl_runtime_apis;
 use sp_consensus_aura::sr25519::AuthorityId as AuraId;
-use grandpa::{AuthorityId as GrandpaId, AuthorityList as GrandpaAuthorityList};
+use grandpa::AuthorityList as GrandpaAuthorityList;
 use grandpa::fg_primitives;
 use sp_version::RuntimeVersion;
 #[cfg(feature = "std")]
@@ -30,17 +30,12 @@
 #[cfg(any(feature = "std", test))]
 pub use sp_runtime::BuildStorage;
 pub use timestamp::Call as TimestampCall;
-pub use staking::Call as StakingCall;
+// pub use staking::Call as StakingCall;
 pub use balances::Call as BalancesCall;
 pub use sp_runtime::{Permill, Perbill};
 pub use contracts::Schedule as ContractsSchedule;
 pub use frame_support::{
-	construct_runtime, parameter_types, StorageValue,
-	traits::{KeyOwnerProofSystem, Randomness},
-	weights::{
-		Weight, IdentityFee,
-		constants::{BlockExecutionWeight, ExtrinsicBaseWeight, RocksDbWeight, WEIGHT_PER_SECOND},
-	},
+    construct_runtime, parameter_types, traits::Randomness, weights::Weight, StorageValue,
 };
 
 /// Importing a template pallet
@@ -132,18 +127,17 @@
 parameter_types! {
 	pub const BlockHashCount: BlockNumber = 2400;
 	/// We allow for 2 seconds of compute with a 6 second average block time.
-	pub const MaximumBlockWeight: Weight = 2 * WEIGHT_PER_SECOND;
+	// pub const MaximumBlockWeight: Weight = 2 * WEIGHT_PER_SECOND;
+    pub const MaximumBlockWeight: Weight = 1_000_000_000;
 	pub const AvailableBlockRatio: Perbill = Perbill::from_percent(75);
 	/// Assume 10% of weight for average on_initialize calls.
-	pub MaximumExtrinsicWeight: Weight = AvailableBlockRatio::get()
-		.saturating_sub(Perbill::from_percent(10)) * MaximumBlockWeight::get();
+	// pub MaximumExtrinsicWeight: Weight = AvailableBlockRatio::get()
+	// 	.saturating_sub(Perbill::from_percent(10)) * MaximumBlockWeight::get();
 	pub const MaximumBlockLength: u32 = 5 * 1024 * 1024;
 	pub const Version: RuntimeVersion = VERSION;
 }
 
 impl system::Trait for Runtime {
-	/// The basic call filter to use in dispatchable.
-	type BaseCallFilter = ();
 	/// The identifier used to distinguish between accounts.
 	type AccountId = AccountId;
 	/// The aggregated dispatch type that is available for extrinsics.
@@ -168,18 +162,6 @@
 	type BlockHashCount = BlockHashCount;
 	/// Maximum weight of each block.
 	type MaximumBlockWeight = MaximumBlockWeight;
-	/// The weight of database operations that the runtime can invoke.
-	type DbWeight = RocksDbWeight;
-	/// The weight of the overhead invoked on the block import process, independent of the
-	/// extrinsics included in that block.
-	type BlockExecutionWeight = BlockExecutionWeight;
-	/// The base weight of any extrinsic processed by the runtime, independent of the
-	/// logic of that extrinsic. (Signature verification, nonce increment, fee, etc...)
-	type ExtrinsicBaseWeight = ExtrinsicBaseWeight;
-	/// The maximum weight that a single extrinsic of `Normal` dispatch class can have,
-	/// idependent of the logic of that extrinsics. (Roughly max block weight - average on
-	/// initialize cost).
-	type MaximumExtrinsicWeight = MaximumExtrinsicWeight;
 	/// Maximum size of all encoded transactions (in bytes) that are allowed in one block.
 	type MaximumBlockLength = MaximumBlockLength;
 	/// Portion of the block weight that is available to all normal transactions.
@@ -204,19 +186,6 @@
 
 impl grandpa::Trait for Runtime {
 	type Event = Event;
-	type Call = Call;
-
-	type KeyOwnerProofSystem = ();
-
-	type KeyOwnerProof =
-		<Self::KeyOwnerProofSystem as KeyOwnerProofSystem<(KeyTypeId, GrandpaId)>>::Proof;
-
-	type KeyOwnerIdentification = <Self::KeyOwnerProofSystem as KeyOwnerProofSystem<(
-		KeyTypeId,
-		GrandpaId,
-	)>>::IdentificationTuple;
-
-	type HandleEquivocation = ();
 }
 
 parameter_types! {
@@ -229,15 +198,7 @@
 	type OnTimestampSet = Aura;
 	type MinimumPeriod = MinimumPeriod;
 }
-
 
-parameter_types! {
-    pub const TombstoneDeposit: Balance = 16 * MILLICENTS;
-    pub const RentByteFee: Balance = 4 * MILLICENTS;
-    pub const RentDepositOffset: Balance = 1000 * MILLICENTS;
-    pub const SurchargeReward: Balance = 150 * MILLICENTS;
-}
-
 impl contracts::Trait for Runtime {
     type Time = Timestamp;
     type Randomness = RandomnessCollectiveFlip;
@@ -247,14 +208,14 @@
     type TrieIdGenerator = contracts::TrieIdFromParentCounter<Runtime>;
     type RentPayment = ();
     type SignedClaimHandicap = contracts::DefaultSignedClaimHandicap;
-    type TombstoneDeposit = TombstoneDeposit;
+    // type TombstoneDeposit = TombstoneDeposit;
     type StorageSizeOffset = contracts::DefaultStorageSizeOffset;
-    type RentByteFee = RentByteFee;
-    type RentDepositOffset = RentDepositOffset;
-    type SurchargeReward = SurchargeReward;
+    // type RentByteFee = RentByteFee;
+    // type RentDepositOffset = RentDepositOffset;
+    // type SurchargeReward = SurchargeReward;
     type MaxDepth = contracts::DefaultMaxDepth;
     type MaxValueSize = contracts::DefaultMaxValueSize;
-    type WeightPrice = transaction_payment::Module<Self>;
+    // type WeightPrice = transaction_payment::Module<Self>;
 }
 
 parameter_types! {
@@ -272,14 +233,16 @@
 }
 
 parameter_types! {
+	pub const TransactionBaseFee: Balance = 0;
 	pub const TransactionByteFee: Balance = 1;
 }
 
 impl transaction_payment::Trait for Runtime {
 	type Currency = balances::Module<Runtime>;
 	type OnTransactionPayment = ();
+	type TransactionBaseFee = TransactionBaseFee;
 	type TransactionByteFee = TransactionByteFee;
-	type WeightToFee = IdentityFee<Balance>;
+	type WeightToFee = ConvertInto;
 	type FeeMultiplierUpdate = ();
 }
 
@@ -290,7 +253,7 @@
 
 /// Used for the module template in `./template.rs`
 impl nft::Trait for Runtime {
-    type Event = Event;
+	type Event = Event;
 }
 
 construct_runtime!(
@@ -308,9 +271,8 @@
 		Balances: balances::{Module, Call, Storage, Config<T>, Event<T>},
 		TransactionPayment: transaction_payment::{Module, Storage},
 		Sudo: sudo::{Module, Call, Config<T>, Storage, Event<T>},
-		// Staking: staking::{Module, Call, Config<T>, Storage, Event<T>},
 		// Used for the module template in `./template.rs`
-        Nft: nft::{Module, Call, Storage, Event<T>},
+		Nft: nft::{Module, Call, Storage, Event<T>},
 	}
 );
 
@@ -326,8 +288,7 @@
 pub type BlockId = generic::BlockId<Block>;
 /// The SignedExtension to the basic transaction logic.
 pub type SignedExtra = (
-	system::CheckSpecVersion<Runtime>,
-	system::CheckTxVersion<Runtime>,
+	system::CheckVersion<Runtime>,
 	system::CheckGenesis<Runtime>,
 	system::CheckEra<Runtime>,
 	system::CheckNonce<Runtime>,
@@ -419,7 +380,7 @@
 
 		fn decode_session_keys(
 			encoded: Vec<u8>,
-		) -> Option<Vec<(Vec<u8>, KeyTypeId)>> {
+		) -> Option<Vec<(Vec<u8>, sp_core::crypto::KeyTypeId)>> {
 			opaque::SessionKeys::decode_into_raw_public_keys(&encoded)
 		}
 	}
@@ -427,26 +388,6 @@
 	impl fg_primitives::GrandpaApi<Block> for Runtime {
 		fn grandpa_authorities() -> GrandpaAuthorityList {
 			Grandpa::grandpa_authorities()
-		}
-
-		fn submit_report_equivocation_extrinsic(
-			_equivocation_proof: fg_primitives::EquivocationProof<
-				<Block as BlockT>::Hash,
-				NumberFor<Block>,
-			>,
-			_key_owner_proof: fg_primitives::OpaqueKeyOwnershipProof,
-		) -> Option<()> {
-			None
-		}
-
-		fn generate_key_ownership_proof(
-			_set_id: fg_primitives::SetId,
-			_authority_id: GrandpaId,
-		) -> Option<fg_primitives::OpaqueKeyOwnershipProof> {
-			// NOTE: this is the only implementation possible since we've
-			// defined our key owner proof type as a bottom type (i.e. a type
-			// with no values).
-			None
 		}
 	}