Build failed. https://zuul.opendev.org/t/openstack/buildset/b560ceb98a714402b6c3bc626a68addd - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/fabe91804a164bfa9326916d371d70f4 : SUCCESS in 3m 27s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/41506ac0caf044bd987ac3c3310e46cb : FAILURE in 2m 50s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/b9c696eca6534d0ea1a8d9b65c548e57 : SUCCESS in 4m 00s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/e21d5b572aa243b3becde27e0379466f : SUCCESS in 3m 52s