Build failed. https://zuul.opendev.org/t/openstack/buildset/df658191e9d44b5dbf6affc23da54297 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/6d662dd2e5494a89ad54e32e50bcf394 : SUCCESS in 5m 38s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/bf750ccec204416fb22c748e109bc2bc : FAILURE in 2m 56s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/ee6ceb83710d4f1a9db6b9cc35c4183b : SUCCESS in 4m 38s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/002259d6c39e489bb2128ad9e3473add : SUCCESS in 5m 23s