language: ruby
rvm:
  - 1.9.3
  - 2.1.0
  - 2.2.0
  - ruby-head
  - jruby-19mode
  - jruby-head
  - rbx-2

env: LANG="en_US.UTF-8" LC_ALL="en_US.UTF-8"

matrix:
  allow_failures:
    - rvm: rbx-2

language: ruby
rvm:
  - 1.9.3
  - 2.1.0
  - 2.2.0
  - jruby-19mode
  - jruby-head
  - rbx-2

env: LANG="en_US.UTF-8" LC_ALL="en_US.UTF-8"

matrix:
  allow_failures:
    - rvm: ruby-head
    - rvm: rbx-2

Move ruby-head to allow_failures matrix
Move ruby-head to allow_failures matrix

Ruby-head now points 2.3.0dev and unf_ext can not be compiled with
ruby-head. This keeps build test errored. Until unf_ext build becomes
okay, put ruby-head down to allow_failures.
