Build failed. https://zuul.opendev.org/t/openstack/buildset/c7774fb6ad7040d18b6bbc8da6ce9309 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/2bf8c425b23d467faf5d8e13f1e525e6 : FAILURE in 3m 20s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/4c1be9c4aafb4962952f7407e5136289 : RETRY_LIMIT in 2m 21s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/75718499aa7b4113b61d16bb8daa484d : SUCCESS in 2m 52s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/99e43149be6c4cba93f76eff895b861e : SUCCESS in 3m 20s