Build failed. https://zuul.opendev.org/t/openstack/buildset/ba4e6f35ae614c5c8fd9c51a95ed278f - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/4e82b1fb7a804965a0e38dd26776310f : SUCCESS in 4m 59s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/81974e7f0165494ab6d9bd768aeb5322 : FAILURE in 4m 44s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/5f06938ce33a4065849324e1b6d72a11 : SUCCESS in 5m 56s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/6662f52bf31f452b87d79194aecc796c : SUCCESS in 5m 10s