cargo 0.31.0

Cargo, a package manager for Rust.
Documentation 
environment:
  matrix:
  - TARGET: x86_64-pc-windows-msvc
    OTHER_TARGET: i686-pc-windows-msvc
    MAKE_TARGETS: test-unit-x86_64-pc-windows-msvc
  - TARGET: x86_64-pc-windows-msvc
    OTHER_TARGET: i686-pc-windows-msvc
    MAKE_TARGETS: test-unit-x86_64-pc-windows-msvc
    MINIMAL_VERSIONS: true
    CFG_DISABLE_CROSS_TESTS: 1

install:
  - appveyor-retry appveyor DownloadFile https://win.rustup.rs/ -FileName rustup-init.exe
  - rustup-init.exe -y --default-host x86_64-pc-windows-msvc --default-toolchain nightly
  - set PATH=%PATH%;C:\Users\appveyor\.cargo\bin
  - if defined MINIMAL_VERSIONS rustup toolchain install 1.28.0
  - rustup target add %OTHER_TARGET%
  - rustc -V
  - cargo -V
  - git submodule update --init

clone_depth: 1

build: false

test_script:
  # we don't have ci time to run the full `cargo test` with `minimal-versions` like
  # - if defined MINIMAL_VERSIONS cargo +nightly generate-lockfile -Z minimal-versions && cargo +stable test
  # so we just run `cargo check --tests` like
  - if defined MINIMAL_VERSIONS cargo +nightly generate-lockfile -Z minimal-versions && cargo check --tests
  - if NOT defined MINIMAL_VERSIONS cargo test