Build failed. https://zuul.opendev.org/t/openstack/buildset/0c4c347f7a464bb5a3b162340a573a22 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/078b91ddf264447eb26a2f43155143ff : SUCCESS in 6m 36s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/864c42acd05d474198260db06249ae09 : SUCCESS in 4m 13s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/8d55cd1ad3ef4f3a93e67a2bd0f719e0 : SUCCESS in 4m 00s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/843f902ebbcb4d5181ae97c13e932fff : FAILURE in 3m 37s