Build failed. https://zuul.opendev.org/t/openstack/buildset/5179a165581f448c973cbeeffee5fb91 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/4b377734877341d8a2a2367f94399af6 : SUCCESS in 3m 21s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/610f5512f6ee455ea61fcde83d497026 : FAILURE in 3m 06s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/b0c93facb35b46629dbdf17a64c4bc6d : SUCCESS in 3m 01s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/b70f3c8aa9e546f2999eca2ac6053dfa : SUCCESS in 5m 05s