rvm:
  - 2.2.6
  - 2.3.3
  - 2.4.0
  - ruby-head
  - jruby-9.1.8.0

matrix:
  allow_failures:
  - rvm: jruby-9.1.8.0

before_script:
  - unset JRUBY_OPTS

script: rake

addons:
  apt:
    packages:
      - haveged