Build failed. https://zuul.opendev.org/t/openstack/buildset/81d969016432493286b44903ef270d81 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/4e517b694fb44eb0bb1fbd081322583b : FAILURE in 3m 17s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/a74f115da0e84bd9bba0206bb8fda866 : SUCCESS in 3m 17s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/ff1fb62e67014216b25601e74f0e488d : SUCCESS in 3m 03s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/366ee7679b80401d8b9b43be52124b3c : SUCCESS in 3m 19s