language: rust

rust:
- stable
- beta
- nightly
matrix:
  allow_failures:
  - rust: nightly
  fast_finish: true
  include:
  - os: osx

before_script:
- rustup component add rustfmt clippy

env:
  global:
  - RUST_BACKTRACE=1

script:
# Ensure everything has been rustfmt'ed
- cargo fmt -- --check
# Download in a separate step to separate
# building from fetching dependencies
- cargo fetch
# Because rust isn't brutal enough itself
- cargo clippy -- -D warnings
# Build everything in a separate step to make a
# clear distinction between building and testing
- cargo test --no-run
- cargo test --no-fail-fast