Build failed. https://zuul.opendev.org/t/openstack/buildset/c6253d2ad53547f0b4434c189324b273 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/73fb9b8499de4608b09614c204e0a304 : SUCCESS in 4m 45s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/dfa9bbb3bce642ceb7c8491df44ab31a : SUCCESS in 4m 21s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/714c290bf7d9497eab93dd3e4924b41d : FAILURE in 4m 14s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/739d79df91ef4b889154fdb14ac64c18 : SUCCESS in 4m 32s