Build failed. https://zuul.opendev.org/t/openstack/buildset/f9cb5ff0a26f46efb669e500b745b9f0 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/878d8d8e93f5487ba7e7d311478aa138 : FAILURE in 3m 08s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/3b8ebfdd071c4f51bb58b42e1eb24e0e : SUCCESS in 4m 25s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/dd0fd7efe32d4b68af02b915928ab4e6 : SUCCESS in 3m 09s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/a37db0e6b06e45f7b16dd0a0d5630c7c : SUCCESS in 3m 44s