No output has been received in the last 10m0s, this potentially indicates a stalled build or something wrong with the build itself. After Gradle Build

I don’t know what the cause of the build never done after gradle build finished. Can I know the caused?
https://travis-ci.org/berv-uni-project/Makhluk-In-Action/builds/591825426?utm_source=github_status&utm_medium=notification

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