Build failed. https://zuul.opendev.org/t/openstack/buildset/7dd6dd3395954b46b116e5af3cea807f - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/b0be70dfaab2459c97751a612d7b4b96 : SUCCESS in 4m 15s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/2ca7208141d048a2b02dbd84b60c97d2 : SUCCESS in 4m 42s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/311ad8ce246b46f6b14b88b96c8c97a7 : SUCCESS in 4m 33s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/f9f1f4abab6741fb9b54ae79d6f1e2ee : FAILURE in 5m 39s