language: ruby
rvm:
  - 2.1.0
  - 2.0.0
  - 2.2.0
  - ruby-head
  - 1.9.3
notifications:
  email: false

language: ruby
rvm:
  - 2.1.0
  - 2.0.0
  - 2.2.0
  - ruby-head
  - 1.9.3
notifications:
  email: false
matrix:
  allow_failures:
    - ruby-head
  

Allow ruby-head to fail and not break the build
Allow ruby-head to fail and not break the build

Since this depends on some C extensions (via coveralls), those are going to lag behind
ruby-head, so let's not have them fail the build.
