Build failed. https://zuul.opendev.org/t/openstack/buildset/d37b74c6427f4e778701bdb79f54061c - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/8379e6d40c234110ae534646fb396977 : SUCCESS in 2m 50s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/bd17ec428bfa4f4387ab8921b91156b0 : SUCCESS in 2m 43s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/8209b793ae5f4ad0ace61b7608aee66f : SUCCESS in 2m 22s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/d99a6028e75c4f1a8e09b4fe06c87459 : FAILURE in 2m 35s