--- a/.docker/Dockerfile-chain-dev
+++ b/.docker/Dockerfile-chain-dev
@@ -13,7 +13,7 @@
 ARG RUST_TOOLCHAIN=
 ARG FEATURE=
 
-ENV FEATURE $FEATURE
+ENV FEATURE=$FEATURE
 
 RUN rustup toolchain uninstall $(rustup toolchain list) && \
     rustup toolchain install $RUST_TOOLCHAIN && \
--- a/.github/workflows/dev-build-tests_v2.yml
+++ b/.github/workflows/dev-build-tests_v2.yml
@@ -101,8 +101,4 @@
         run: |
           docker builder prune -f -a
           docker system prune -f
-          docker image prune -f -a
-
-      - name: Clean Workspace
-        if: always()
-        uses: AutoModality/action-clean@v1.1.0
\ No newline at end of file
+          docker image prune -f -a
\ No newline at end of file