Build failed. https://zuul.opendev.org/t/openstack/buildset/fbc6766ae1174c9eae6ad604a56ada13 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/ab386fe6069b4c78b569892361431186 : FAILURE in 4m 19s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/532d94f0cf454ef9bfc2ec98a1b3f801 : SUCCESS in 4m 06s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/06600e6c095a433dab56ee0846eb4317 : SUCCESS in 3m 27s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/7fced73ebac84f979183250f2173a2f0 : SUCCESS in 3m 34s