travis-ci/docs-travis-ci-com — pull request #120 by svenfuchs (2014-09-25 10:29:40+00:00)
Title: Bundler caching: add --jobs and --retry to the example

Josh via support: "when you overwrite the install step you also overwrite our use of --jobs and --retry with Bundler, which retries a gem download x many times, as well as running downloads in parallel."