message: move to latest yarn
diff: @@ -12,7 +12,7 @@ cache:
  before_install:
  # https://docs.travis-ci.com/user/languages/javascript-with-nodejs#Travis-CI-supports-yarn
  - - curl -o- -L https://yarnpkg.com/install.sh | bash -s -- --version 1.3.2
  + - curl -o- -L https://yarnpkg.com/install.sh | bash -s -- --version 1.12.3
  - export PATH="$HOME/.yarn/bin:$PATH"
  stages:
  