rustfmt-nightly 0.6.0

Tool to find and fix Rust formatting issues
# This is based on https://github.com/japaric/rust-everywhere/blob/master/appveyor.yml
# and modified (mainly removal of deployment) to suit rustfmt.

environment:
  global:
    PROJECT_NAME: rustfmt
  matrix:
    # Stable channel
    # - TARGET: i686-pc-windows-gnu
    #   CHANNEL: stable
    # - TARGET: i686-pc-windows-msvc
    #   CHANNEL: stable
    # - TARGET: x86_64-pc-windows-gnu
    #   CHANNEL: stable
    # - TARGET: x86_64-pc-windows-msvc
    #   CHANNEL: stable
    # Beta channel
    # - TARGET: i686-pc-windows-gnu
    #   CHANNEL: beta
    # - TARGET: i686-pc-windows-msvc
    #   CHANNEL: beta
    # - TARGET: x86_64-pc-windows-gnu
    #   CHANNEL: beta
    # - TARGET: x86_64-pc-windows-msvc
    #   CHANNEL: beta
    # Nightly channel
    - TARGET: i686-pc-windows-gnu
      CHANNEL: nightly
    - TARGET: i686-pc-windows-msvc
      CHANNEL: nightly
    - TARGET: x86_64-pc-windows-gnu
      CHANNEL: nightly
    - TARGET: x86_64-pc-windows-msvc
      CHANNEL: nightly

# Install Rust and Cargo
# (Based on from https://github.com/rust-lang/libc/blob/master/appveyor.yml)
install:
  - appveyor-retry appveyor DownloadFile https://win.rustup.rs/ -FileName rustup-init.exe
  - if "%TARGET%" == "i686-pc-windows-gnu" set PATH=%PATH%;C:\msys64\mingw32\bin
  - if "%TARGET%" == "x86_64-pc-windows-gnu" set PATH=%PATH%;C:\msys64\mingw64\bin
  - set PATH=%PATH%;C:\Users\appveyor\.cargo\bin
  - rustup-init.exe --default-host %TARGET% --default-toolchain %CHANNEL% -y
  - rustc -Vv
  - cargo -V

# ???
build: false

test_script:
  - cargo build --verbose
  - cargo test