Build failed. https://zuul.opendev.org/t/openstack/buildset/c9cafde52cf5477a9be51cc084fd681f - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/b36a7cb996bb4480979f4d26f0ef1521 : SUCCESS in 2m 55s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/9519b5dc21d54da5a7c1bf9f3303a0c5 : SUCCESS in 3m 25s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/612842ba4dfa4d499a4dc4512dfe74cb : SUCCESS in 2m 33s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/ae94ec84b93d4c81aba89ce053c93881 : FAILURE in 3m 07s