See here for instance: https://github.com/debezium/debezium/actions/runs/556065236
Those builds hang for 6h, and then get canceled. As per Anisha Priyadarshini Mohanty , this is happening since the MySQL rewrite got merged.
Potentially related, there's also this sort of error: https://github.com/debezium/debezium/runs/1865118963?check_suite_focus=true
Logs are truncated there for some reason.