logging module is being removed during interpreter shutdown but event loop is still trying to use it.
This error is being thrown from cqlsh during automaton test tests.tools.Copy_Test.TestCqlCopy.test_copy_with_null_entries_csv :
http://jenkins2.datastax.lan:8080/job/QA2_Cassandra_Tools/2581/AUTHENTICATION=dseauth_internal_dserc_file,PLATFORM=xenial,label_exp=qa_runner_dyna/testReport/junit/tests.tools.Copy_Test/TestCqlCopy/test_copy_with_null_entries_csv/
This will only be a problem for python <= 3.3:
https://stackoverflow.com/a/25649713/37205