language: ruby
sudo: false
cache: bundler
script: "bundle exec rake"
rvm:
  - 2.2.6
  - 2.3.3
  - 2.4.0
  - 2.5.1
gemfile:
  - gemfiles/4.2.gemfile
  - gemfiles/5.0.gemfile

dist: trusty
language: ruby
sudo: false
cache: bundler
script: "bundle exec rake"
rvm:
  - 2.2.6
  - 2.3.3
  - 2.4.0
  - 2.5.1
gemfile:
  - gemfiles/4.2.gemfile
  - gemfiles/5.0.gemfile

Set Travis build distribution explicitly
Set Travis build distribution explicitly

 - travis changed the default distribution breaking build
   - travis default distribution changed from Trusty to Xenial
   - explicitly set to Trusty
