Build failed. https://zuul.opendev.org/t/openstack/buildset/435019aa3d5748c5aeef952726d81cc6 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/78243bb9c2b9403a819a79b75287b55b : SUCCESS in 4m 16s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/d01625af902743edad44403ef422b601 : FAILURE in 4m 21s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/093f9f36fff04920a487340e473565fa : SUCCESS in 4m 01s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/096e8f93f3ed4b6688ca5c07615b6161 : SUCCESS in 3m 38s