Cannot push to github branch - no details

Pushing to github branch failing (via gh-pages) - Please see builds for https://travis-ci.com/github/indic-dict/stardict-gujarati (in contrast with other successful but similar projects like https://travis-ci.com/github/indic-dict/stardict-hindi ). There is no sensible error message: just - " Failed to push the build to github.com/indic-dict/stardict-gujarati.git:test "

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