sudo: false
cache: bundler
language: ruby
bundler_args: --without debugging
rvm:
  - 2.3.0
  - 2.2.4
  - ruby-head
matrix:
  allow_failures:
    - rvm: ruby-head
  fast_finish: true

sudo: false
cache: bundler
language: ruby
bundler_args: --without debugging
rvm:
  - 2.3.1
  - 2.3.0
  - 2.2.4
  - 2.1.9
  - ruby-head
matrix:
  allow_failures:
    - rvm: ruby-head
  fast_finish: true

Add 2.3.1 & 2.1.9 to build matrix
Add 2.3.1 & 2.1.9 to build matrix
