Build failed. - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/1e894f293e864e6cbd1fd9ab87ad15b2 : SUCCESS in 8m 42s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/51959da2347a4d85bb782ee72822ebbe : SUCCESS in 7m 38s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/63a24652760a441f832eb8cc9844d991 : FAILURE in 8m 33s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/e09723eade0f478d82fef022225968cf : SUCCESS in 10m 10s