Build failed. https://zuul.opendev.org/t/openstack/buildset/d21e3bef124d4434bd4febc502bc5dda - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/abe340d11aa84cda889e8e712993753f : FAILURE in 4m 04s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/0fb6dd95ad8c4b2ca238d1f288705c50 : SUCCESS in 4m 33s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/7b3a54ea08b2436f97f562fd75633a20 : SUCCESS in 3m 50s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/8e05595c71c84adf851a571259200947 : SUCCESS in 3m 43s