Build failed. https://zuul.opendev.org/t/openstack/buildset/57eeb737c09b496eb49dadfb7500f973 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/f6d165a101d3462fbe46cc2f14efd27d : SUCCESS in 5m 27s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/dbb9d137a18e4e27872281e3963b3d46 : FAILURE in 5m 11s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/ba96549fcd5648e1a97a39f50d060731 : SUCCESS in 3m 49s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/84b0fe41efa14816b560deb764f7f0a5 : SUCCESS in 4m 27s