Build failed. https://zuul.opendev.org/t/openstack/buildset/49e72a3a3f3e447fbf5f41b317272209 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/f870d5081b76442e912349f1bd55fd65 : FAILURE in 4m 01s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/0c69d720936340bf8bacc943652c0541 : FAILURE in 4m 06s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/64f989ea694d444da46590bcf2e03937 : FAILURE in 3m 37s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/3027bfa921ac404195b3c11392e38318 : FAILURE in 5m 16s