Build failed. https://zuul.opendev.org/t/openstack/buildset/1f37c5065cf540ac972ad7f2cce2b369 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/f4890000a3d84e8fa0099c8dba0e8e45 : SUCCESS in 4m 07s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/0ff0d6eebffa44ceb7d00c68f746d3e1 : FAILURE in 3m 39s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/27bf0606189b46729586418b5ce96fca : SUCCESS in 5m 10s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/d841176be7254117a2c1f8bdc0addbf9 : SUCCESS in 3m 49s