message: Actions: Manually run cargo build for interop test
  The cargo action doesn't support specifying a working directory, and
  cargo does not support feature flags in a workspace directory.
diff: @@ -14,10 +14,8 @@ jobs:
  toolchain: 1.37.0
  override: true
  - name: cargo build
  - uses: actions-rs/cargo@v1
  - with:
  - command: build
  - args: --features unstable
  + run: cargo build --features unstable
  + working-directory: ./rage
  - uses: actions/upload-artifact@v1
  with:
  name: rage
  