Build failed. https://zuul.opendev.org/t/openstack/buildset/d6cbd4bc5fbf4c2f853ca468c723414b - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/342dcf0ce87f43a294aa7e1ebc78548b : SUCCESS in 3m 16s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/85d5324215c9410ea18bee621bc88ed0 : FAILURE in 2m 49s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/1d38fe4eed764b6aa361ba76a6e72bdf : SUCCESS in 3m 17s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/1e8d67c9011442c8a2b3c945b6256480 : FAILURE in 2m 54s