erlang 21.2.2 is released but not built to travis.
It was built about 21 hours ago. https://travis-ci.org/travis-ci/travis-erlang-builder/builds/478948003
In general, there is no need to ping about a new Erlang release, unless a new X.Y ( as opposed to X.Y.Z) is released. It will be automatically built within 24 hours.
The tag 21.2.2 was released in 18 days ago, but I do not find it in the travis ci test.
Until now, the test in travis ci is still failed.
Downloading archive: https://s3.amazonaws.com/travis-otp-releases/binaries/ubuntu/14.04/x86_64/erlang-21.2.2-nonroot.tar.bz2 failed.
Ah, I see the problem now. Sorry about that. https://travis-ci.org/travis-ci/travis-erlang-builder/builds/479392026 should fix it.