Build failed. https://zuul.opendev.org/t/openstack/buildset/6686dcdd3ebb43149cb623f392324b5e - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/dc63f12e8fd845bba41e3e84bb707b8d : FAILURE in 6m 54s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/1a9f44f60ff746208f0b48259e3aeec8 : SUCCESS in 5m 34s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/b4f9f6fe218341a4bbbc0e218b869be7 : SUCCESS in 5m 41s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/fae732acdfd14d86849056c8df077954 : SUCCESS in 6m 11s