Build failed. https://zuul.opendev.org/t/openstack/buildset/8af2e654d7584433be16a659b5f13ec6 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/442a62485ea74c25916bcd1cd404a903 : FAILURE in 4m 37s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/e04a5ce8b436442c8e041c726c661054 : SUCCESS in 5m 29s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/66b5865477004db9bf29422a0d6b512a : SUCCESS in 7m 21s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/c851808baa2e4d6e88c4c5a9f0483276 : SUCCESS in 7m 04s