Build failed. - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/10785451609941f7966074cb749845ed : SUCCESS in 4m 12s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/8f5fa341d8924ed2935693f058162b3e : FAILURE in 3m 15s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/1729e32fa130458cb3188b568dcc598f : SUCCESS in 3m 55s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/12e7c336104c40e0874af9c65d2c9f27 : SUCCESS in 4m 01s