Build failed. https://zuul.opendev.org/t/openstack/buildset/3e71868b2114410686f0fd784e147fed - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/9369cbdc1f87481c9ebd4fa1f97b8124 : FAILURE in 3m 25s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/edeedfb3094547cb8a8acd139a909921 : SUCCESS in 3m 32s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/1911bed2771a4ee48c81c3aec87e13d6 : SUCCESS in 3m 39s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/1b12f5274e89433abf71349ddfd26b2f : SUCCESS in 3m 32s