Checks stuck on "Expected — Waiting for status to be reported". Build succeeds, but not reported

Travis CI checks stopped working for pull requests and branches for my project: https://github.com/dyc3/opentogethertube

For example: This PR: https://github.com/dyc3/opentogethertube/pull/154 has a build that succeeds here: https://travis-ci.org/dyc3/opentogethertube/builds/621427528

It is worth trying: GitHub PR is being built but result is not shown

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