Build failed. https://zuul.opendev.org/t/openstack/buildset/8881aca269b044cabdf07a4b4114751b - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/e5656b13bc7d418585fc8990ee2a6474 : FAILURE in 6m 38s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/8747b46673a34854991984a1448be9b8 : SUCCESS in 7m 00s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/dcfdaac235bb4c308a96d0e4b53110af : SUCCESS in 6m 00s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/769d314bacbc43e881856bbf2e4ea57b : SUCCESS in 6m 44s