sudo: false
cache: bundler
language: ruby

rvm:
  - 2.3.8
  - 2.4.5
  - 2.5.5
  - 2.6.2

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

script: xvfb-run bundle exec rake

sudo: false
cache: bundler
language: ruby

rvm:
  - 2.5.7
  - 2.6.5

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

script: xvfb-run bundle exec rake

Adjust the Ruby build matrix.
Adjust the Ruby build matrix.
