sudo: false
language: ruby
os:
  - linux
  - osx
rvm:
  - 2.0
  - 2.1
  - 2.3
  - 2.4
  - ruby-head
matrix:
  allow_failures:
    - rvm: ruby-head
  exclude:
    - rvm: 2.4
      os: osx
    - rvm: ruby-head
      os: osx
before_install: gem install bundler -v 1.15.1

sudo: false
language: ruby
os:
  - linux
  - osx
rvm:
  - 2.0
  - 2.1
  - 2.3
  - 2.4
  - ruby-head
matrix:
  allow_failures:
    - rvm: ruby-head
  exclude:
    - rvm: 2.0
      os: osx
    - rvm: 2.4
      os: osx
    - rvm: ruby-head
      os: osx
before_install: gem install bundler -v 1.15.1

Exclude OSX ruby 2.0 which does not seem to work
Exclude OSX ruby 2.0 which does not seem to work
