language: elixir elixir: - 1.3.4 - 1.4.5 - 1.5.3 - 1.6.3 otp_release: - 18.3 - 19.3 - 20.3 sudo: false script: mix test matrix: exclude: - elixir: 1.3.4 otp_release: 20.3 - elixir: 1.5.3 otp_release: 18.3 - elixir: 1.5.3 otp_release: 19.3 - elixir: 1.6.3 otp_release: 18.3 - elixir: 1.6.3 otp_release: 19.3