language: rust
matrix:
  include:
    - rust: 1.24.0
    - rust: stable
    - rust: stable
      os: osx
    - rust: beta
    - rust: nightly
      env: FEATURES="--features nightly"
script: ./ci/travis.sh

language: rust
matrix:
  include:
    - rust: 1.37.0
    - rust: stable
    - rust: stable
      os: osx
    - rust: beta
    - rust: nightly
      env: FEATURES="--features nightly"
script: ./ci/travis.sh

Make Rust 1.37 the minimum tested version
[Travis] Make Rust 1.37 the minimum tested version
