Build failed. https://zuul.opendev.org/t/openstack/buildset/a4fa9655b96b47a49a1ef21b801f077d - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/a02e58f1880b40fa8716ffa41fef69cc : SUCCESS in 4m 09s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/a792eec38b0b4a94895ab258ff33ed2f : SUCCESS in 4m 42s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/abdc026b4a28470faa198ebf159e7a69 : SUCCESS in 6m 25s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/16d0a7a5f42944a291c76724d9c658c6 : FAILURE in 5m 08s