Build failed. https://zuul.opendev.org/t/openstack/buildset/527aed0ee666470caa0091ce02fe690d - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/24ae36beb9a9460ba874f40211ed8dde : SUCCESS in 2m 52s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/417b5e5b275e4e5c97b737a6764a4fb4 : SUCCESS in 2m 59s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/a0c96ca705384706b18b85bb8943dc84 : FAILURE in 3m 29s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/217a6ce1f0e94928a6deb8da2bea20aa : FAILURE in 2m 30s