Build failed. https://zuul.opendev.org/t/openstack/buildset/f5c72a3cc53b4f1d898721f6a5f5b851 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/52dc9ead720544ad9d4b9a2a9d6e74b7 : SUCCESS in 15m 08s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/28b024ae49ea48ef9e38931ac6f71bc5 : SUCCESS in 9m 37s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/f8755fb40d4b4d62b537984f1097b1f9 : FAILURE in 11m 25s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/56a139af30af461b974e7a5005094867 : SUCCESS in 9m 14s