Build failed. - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/9c65e1756c6e4713bc210c5b22a4de60 : SUCCESS in 4m 52s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/6b650e2cb0ad442e951f2b2ac2e81980 : FAILURE in 3m 43s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/061d706dd9fd41aea0a91f389e4d3cf2 : SUCCESS in 4m 38s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/9d91653f073647bf988941a83077f972 : SUCCESS in 4m 51s