Build failed. https://zuul.opendev.org/t/openstack/buildset/3e6d7dd504a54c85acad8f2bcd5e6b29 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/bb3cb8185bac45878197a44b17c5a6bc : SUCCESS in 4m 36s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/7f3ca15e53de4c7fbf4ba099cc88d97e : SUCCESS in 4m 41s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/1f5c6e150d22468aa35506c0ad38fd13 : FAILURE in 4m 26s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/8abe11426dca4b968b97b39676ffbeb2 : FAILURE in 4m 45s