Build failed. https://zuul.opendev.org/t/openstack/buildset/091a9316b5054b78a242dd50c55cb090 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/d996ee074ada47a795fb543214cf8589 : FAILURE in 3m 11s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/d16b1ce6d2e04a3494f184dd3e34eb01 : SUCCESS in 2m 44s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/8e2e5c88530b48889207504f214bebf6 : SUCCESS in 2m 50s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/f0a459460df2470dbe54942125cb2bc4 : SUCCESS in 3m 07s