sudo: false
language: ruby

rvm:
  - 2.4.4
  - 2.5.1
  - ruby-head

before_install:
  - gem update --system
  - gem install bundler

cache: bundler

matrix:
  allow_failures:
    - rvm: ruby-head

notifications:
  email: false

sudo: false
language: ruby

rvm:
  - 2.4.4
  - 2.5.1
  - ruby-head

before_install:
  - gem update --system

cache: bundler

matrix:
  allow_failures:
    - rvm: ruby-head

notifications:
  email: false

Remove bundler installation because it is already included in CI
Remove bundler installation because it is already included in CI

refs: https://twitter.com/travisci/status/1080930935095287808
