message: Switching to stable rust in AppVeyor.
diff: @@ -6,9 +6,6 @@ environment:
  matrix:
  - channel: nightly
  target: x86_64-pc-windows-msvc
  - - channel: nightly
  - target: x86_64-pc-windows-gnu
  - msys_bits: 64
  install:
  - appveyor DownloadFile https://win.rustup.rs/ -FileName rustup-init.exe
  