cqlshlib test failure: cqlshlib.test.remove_test_db

Stefania
http://cassci.datastax.com/job/cassandra-3.9_cqlsh_tests/lastCompletedBuild/testReport/

Hello, these three tests are failing:
cqlshlib.test.remove_test_db
cqlshlib.test.test_cqlsh_completion.TestCqlshCompletion.test_complete_in_create_columnfamily
cqlshlib.test.test_cqlsh_completion.TestCqlshCompletion.test_complete_in_create_table

Can you look at them, please? Thank you!