Build failed. https://zuul.opendev.org/t/openstack/buildset/b8f543a8d743431a82322ac872846b4c - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/cc202950efd54c3fb6b5f1f5c6b5832a : SUCCESS in 4m 23s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/12699f1f2502490788caa67ae21e2f0f : SUCCESS in 5m 08s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/1450660cd070402bb3311580a62c1944 : SUCCESS in 5m 06s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/0f715591c2a945a695a4a8624e50860d : FAILURE in 4m 18s