Build failed. https://zuul.opendev.org/t/openstack/buildset/f24e9eac0cb64aea8cbfd3379ea4b8d6 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/08d2dc0d44d549ae847d84293c81b5ba : SUCCESS in 3m 43s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/b9aff263521049c2820a26d93020057e : SUCCESS in 5m 56s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/23623cbe79954a1685cc3cf4c41e3959 : SUCCESS in 5m 47s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/79a6ce95e48941a4b494f7defc7c1c81 : FAILURE in 5m 46s