matrix:
  allow_failures:
    - rvm: ruby-head
  include:
    - rvm: 2.3.8
      gemfile: gemfiles/rails_3.2.gemfile
    - rvm: 2.3.8
      gemfile: gemfiles/rails_4.2.11.gemfile
    - rvm: 2.6.3
      gemfile: gemfiles/rails_5.2.gemfile
    - rvm: 2.6.3
      gemfile: gemfiles/rails_6.0.gemfile
    - rvm: ruby-head
      gemfile: gemfiles/rails_5.2.gemfile
    - rvm: ruby-head
      gemfile: gemfiles/rails_6.0.gemfile
before_install:
  - gem update --system
  - gem install bundler