Build failed. - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/f38703693ff443af8be22cb7495ff5a7 : SUCCESS in 6m 56s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/b5d4358196d54b6e8bf717121ff253bf : SUCCESS in 9m 20s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/53e5dc9b7bfa4a23b47560f1b3702c96 : SUCCESS in 9m 17s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/8caff495515d425eab7688b95ff6f601 : FAILURE in 8m 36s