Build failed. https://zuul.opendev.org/t/openstack/buildset/9bf9b808af504cf19a03a19a75e7485e - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/bce734a972f74ac0a93c3afef6df4db6 : FAILURE in 4m 59s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/89445043d8904b27a5cfffd350a01d13 : SUCCESS in 4m 39s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/a8758ac8a11d40a3ab46251219828e28 : SUCCESS in 3m 23s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/78d30944ebcf49188e781694fe6f0942 : SUCCESS in 3m 17s