Build failed. https://zuul.opendev.org/t/openstack/buildset/de49b10bc847461d893b77e2f4bc4096 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/0805b2f113e44b77a5c7d93bf7f124b1 : SUCCESS in 3m 32s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/d92fc0eb1e564180996a8475b4052f34 : SUCCESS in 2m 47s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/db69447da31149fdaf56d361143fb867 : SUCCESS in 2m 53s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/1ada5c87b4e54578a9ad677af8154867 : FAILURE in 3m 01s