Build failed. https://zuul.opendev.org/t/openstack/buildset/bbf2303463bd4ff9a8b31f876518e28b - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/15848e849d5143e98412ea1e01a9f367 : SUCCESS in 4m 46s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/d7700f7b9e89485e91d487ae54a47011 : FAILURE in 4m 11s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/c4bce6e8a73a490e99e729a86c4d4153 : SUCCESS in 5m 10s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/d8523777f546477aaa04ef8c43c6c49b : SUCCESS in 4m 01s