language: elixir
elixir:
  - 1.3.0
otp_release:
  - 19.0
script: MIX_ENV=test mix compile --warnings-as-errors && MIX_ENV=test mix test

language: elixir
elixir:
  - 1.3.0
otp_release:
  - 19.0
  - 18.3
script: MIX_ENV=test mix compile --warnings-as-errors && MIX_ENV=test mix test

Add Erlang 18.3 as extra test target
CI: Add Erlang 18.3 as extra test target
