Build failed. https://zuul.opendev.org/t/openstack/buildset/a38b8cbd65fd4ebdbe074990b933dfb4 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/5f79c76a0ccc4ad7a99cef7c858a4ccf : FAILURE in 4m 51s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/5f1543b98b644307b1f98a38c2b0225e : SUCCESS in 5m 01s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/a658e35c60d049919a0a1e9a869472e6 : SUCCESS in 4m 49s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/6d11a900c0234ccf81d05ae173329485 : SUCCESS in 5m 25s