Build failed. https://zuul.opendev.org/t/openstack/buildset/1b0263e6f0a44133b65141d7ad1612c3 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/a61a38e47e9b4d908f1c3cfe4fb2204a : SUCCESS in 2m 43s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/ef92f33f921b42b98890e5a9d7fa875e : FAILURE in 3m 08s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/fd72b50410b2415ba21f30a8240e24fa : SUCCESS in 3m 28s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/d6bb7a3c1fcc445f97415a3f1ec5a360 : FAILURE in 2m 43s