Build failed. - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/78fbcb23c5754fc4ab5af83705d2d19e : SUCCESS in 4m 33s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/84d00b3133f045b7bb43c6e60ec7a10a : FAILURE in 4m 14s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/190d2a37d7a84d9fac2539cf6e75c86a : SUCCESS in 4m 19s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/4abd46f81d3a4b098e1efc11b6029db4 : SUCCESS in 6m 17s