Build failed. https://zuul.opendev.org/t/openstack/buildset/da579271cb1c4cdeb194647e5064c2d9 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/cb9ef01e817843a499c86c82f9ddfc7e : SUCCESS in 5m 20s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/56cf55bc098242e2934637195795d4b4 : FAILURE in 2m 57s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/d0557049755b48b9850114cab74f443b : SUCCESS in 3m 09s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/a21df67147704d6babf131764efdb2a6 : SUCCESS in 5m 28s