Build failed. - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/5f3832ac926a4e43b8cee4376ce2436d : SUCCESS in 6m 56s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/e24559004e8f4794a553f961bc3cff6e : FAILURE in 8m 23s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/a9237e0cac8d4a8da188cec408cdf5bb : SUCCESS in 8m 07s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/ac2db93b8a874446b05f0e2613a1eb2f : SUCCESS in 20m 03s