Build failed. - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/2fd843467eb94e1082877b75c24e4ab4 : SUCCESS in 5m 56s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/06b1106d523c461f919f486def175180 : FAILURE in 6m 42s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/9f01009db7534d339c3b3d1ac180985c : SUCCESS in 6m 10s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/7c88fe88ab2d4c8090d7323ed5e43339 : SUCCESS in 6m 01s