.travis.yml

language: rust
os:
  - linux
  - osx
rust:
  - stable
  - beta
  - nightly

before_install:
  # Remove rust-toolchain or we will always use the version specified there
  # regardless of what version is installed
  - rm rust-toolchain

script:
  - rustc --version --verbose
  # -D warnings denies all warnings so that we always know when some code
  # introduces new ones
  - RUSTFLAGS="-D warnings" cargo build --verbose --all
  # Make sure we can run on osx
  - if [[ "$TRAVIS_OS_NAME" == "osx" ]]; then cargo run --verbose --example runtest; fi
  # -D warnings denies all warnings so that we always know when some code
  # introduces new ones
  # We use --no-run because if we kept it as part of the next command it would run twice when it fails
  - RUSTFLAGS="-D warnings" cargo test --verbose --features "test" --all --no-run
  # Retry with fewer cores if the initial `cargo test` fails to work around possible OOM errors
  # for more details see https://github.com/rust-lang/cargo/issues/4415
  # Source: https://github.com/ipetkov/conch-runtime/commit/3e6afc5f45791e7793b968712c1ed8ddbe0758fb
  # We need to keep `RUSTFLAGS="-D warnings"` so that this doesn't need to recompile if the above finishes
  - RUSTFLAGS="-D warnings" cargo test --verbose --features "test" --all || (
      echo "$(tput setaf 3)$(tput bold)Initial 'cargo test' failed, retrying with fewer cores to work around Travis CI OOM issues$(tput sgr 0)" &&
      RUSTFLAGS="-D warnings" cargo test --verbose --features "test" --all --jobs 1 -- --test-threads=1
    )
  - cargo doc --no-deps --verbose --all
matrix:
  # Mark the build as finished even if the allow_failures builds
  # are still running
  fast_finish: true
  allow_failures:
    - rust: beta
    - rust: nightly