Build failed. - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/8d37ae3e6587441abc796ccc9bb76a35 : SUCCESS in 3m 51s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/93ed24f6f30f46bbbe100d08e6d255e2 : SUCCESS in 4m 05s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/7c88f761fb25432cb8ff0bbcc621fc71 : FAILURE in 3m 41s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/aa645dc45bea4cd68282498ef2e5cb62 : FAILURE in 4m 04s