This is a problem with Testcontainers' build process, rather than an issue with the library that users would experience.

This was mentioned in #894, but I think we've been seeing this problem quite regularly in the last few weeks. The symptom is most/all of the CI jobs for a particular revision fail at the point of downloading Gradle plugins from https://plugins.gradle.org. I suspect this is either due to problems with the Gradle plugin repo servers (which I think are on Bintray) or a network connectivity issue between CI and those servers.

If we can do anything to make this less likely to occur, it would make it easier for people submitting/reviewing PRs.