Build failed. https://zuul.opendev.org/t/openstack/buildset/3d813926997e457390c6b98584aeaa23 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/c79423cb7a914051b66d684c1f3c017c : FAILURE in 4m 38s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/67695a43b0cf4f4f8e578118528563d7 : SUCCESS in 4m 22s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/706e62675bcc456f8b8b7cf9e2b4d7e6 : SUCCESS in 4m 44s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/cdfae0e6b61940e89f8464eab3468dbe : SUCCESS in 5m 18s