Build failed. https://zuul.opendev.org/t/openstack/buildset/c595b79d3ac1402cb03212a40e6dbe0c - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/2a2b802bd0d941eebc97b3d0984843cb : FAILURE in 5m 45s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/88b9c62533a14439817e3a16810ded57 : SUCCESS in 7m 34s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/1c38eda3b38c4c2c94065dfa9cfbdf4e : SUCCESS in 6m 22s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/ffa9c57010994174b82dfc2ac41b6574 : SUCCESS in 5m 40s