Build failed. https://zuul.opendev.org/t/openstack/buildset/92dcfa1904ad40a39ad84cbe3b5fc9c4 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/27be77d3ee99454aa17c53c9c8f6800c : SUCCESS in 4m 50s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/5381ec19f38f4399a6ef6c5325808fcf : SUCCESS in 5m 26s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/6ad69dc7dd7c434a90f688753d5eb34e : SUCCESS in 6m 18s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/0900c68ffd5f42e0b698831ae8239088 : FAILURE in 4m 27s