message: Add rustup to appveyor
diff: +os: Visual Studio 2015
  +
  environment:
  matrix:
  - - TARGET: 1.28.0-x86_64-pc-windows
  - COMPILER: msvc
  + # Stable 64-bit MSVC
  + - channel: stable
  + target: x86_64-pc-windows-msvc
  +
  install:
  - - if %COMPILER%==gnu choco install -y mingw
  - - ps: Start-FileDownload "https://static.rust-lang.org/dist/rust-${env:TARGET}-${env:COMPILER}.exe" -FileName "rust-install.exe"
  - - ps: .\rust-install.exe /VERYSILENT /NORESTART /DIR="C:\rust" | Out-Null
  - - ps: $env:PATH="$env:PATH;C:\rust\bin;C:\tools\mingw64\bin"
  - - if %COMPILER%==gnu gcc -v
  + - appveyor DownloadFile https://win.rustup.rs/ -FileName rustup-init.exe
  + - rustup-init -yv --default-toolchain %channel% --default-host %target%
  + - set PATH=%PATH%;%USERPROFILE%\.cargo\bin
  - rustc -vV
  - cargo -vV
  -build_script:
  - - cargo build --manifest-path ash/Cargo.toml
  - - cargo build --manifest-path examples/Cargo.toml
  -branches:
  - only:
  - # This is where pull requests from "bors r+" are built.
  - - staging
  - # This is where pull requests from "bors try" are built.
  - - trying
  - # Uncomment this to enable building pull requests.
  - - master
  +# 'cargo test' takes care of building for us, so disable Appveyor's build stage. This prevents
  +# the "directory does not contain a project or solution file" error.
  +build: off
  +
  +test_script:
  +- cargo test --verbose %cargoflags%
  