message: Attempt to express negation in yaml syntax again
diff: @@ -102,7 +102,7 @@ jobs:
  target: ${{ matrix.target }}
  override: true
  - uses: Swatinem/rust-cache@v1
  - if: !(matrix.use_sccache)
  + if: matrix.use_sccache != true
  - name: Install LLVM (Windows)
  if: matrix.os == 'windows-latest' && !matrix.llvm_url
  shell: cmd
  