Build failed. - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/93a3fd263b86438ab77631b74d82213a : SUCCESS in 10m 04s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/097fcde3431345b09af51ba75d6b3f74 : SUCCESS in 12m 54s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/df8842df3c9c4eceab5b88831612b265 : SUCCESS in 10m 13s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/5280b45cd4664bfab67125efdc043046 : FAILURE in 6m 12s