message: remove dependency to rustfmt
diff: @@ -31,7 +31,7 @@ jobs:
  targets: 'x86_64-pc-windows-msvc'
  - os: ubuntu-latest
  rust: 'nightly'
  - components: 'rust-src, llvm-tools-preview, rustfmt'
  + components: 'rust-src, llvm-tools-preview'
  targets: 'x86_64-unknown-linux-gnu'
  