Build failed. https://zuul.opendev.org/t/openstack/buildset/6be0e65c1ea14218b81dedba4ae6e202 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/f2a3da26ef3b46ff8771641ff09a26d0 : SUCCESS in 3m 17s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/7ba7b11863ee4bfba1494066725a10ae : SUCCESS in 2m 47s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/26fb8c2e94514ae19f22f00470ba16f9 : FAILURE in 3m 52s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/ef210bbfcfb34e51a43a57d00e542440 : FAILURE in 2m 22s