For broader awareness. The debranch job on ci-cassandra.a.o: that used for pre-commit testing; is currently not available for patches against 5.0 and trunk.
Restoring it is part of CASSANDRA-18594. This was a priority up until recently, eta now is early January. Those that do not have circleci premium plan, or any other CI system, to use for testing patches, please reach out to me (or anyone with access) to get it run through circleci.
