Build failed. https://zuul.opendev.org/t/openstack/buildset/f0f687c656d04b3bad1407fa231aa17d - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/bb50708c2b9f4139bf9788a27c95425a : FAILURE in 3m 17s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/6e9d88fcc14048a8b18a49d3f6d637c5 : SUCCESS in 3m 23s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/966fc24a5eb24d6db92539e9988f7b50 : SUCCESS in 3m 46s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/4157dc0e8a2c443cb99fb472a8c14597 : SUCCESS in 2m 48s