Build failed. https://zuul.opendev.org/t/openstack/buildset/eef190734a0543f2a1a55930c7009695 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/ce3ee941ce9b41e09ee8aaa64921c93c : SUCCESS in 5m 21s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/901826da4cc9474189626102bb7b74fe : FAILURE in 5m 42s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/5ee7a5e43f244a24bdd49fe8ebba4c7e : SUCCESS in 5m 39s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/2683b93ce1c648e3a25ff848460ea665 : SUCCESS in 7m 38s