rvm:
  - 2.5.4

gemfile:
  - gemfiles/Gemfile.5.1.pg
  - gemfiles/Gemfile.5.2.pg
  - gemfiles/Gemfile.6.0.pg

  - gemfiles/Gemfile.5.1.mysql
  - gemfiles/Gemfile.5.2.mysql
  - gemfiles/Gemfile.6.0.mysql