Build failed. - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/0d76b588445c46c6a55928cee6b2b433 : SUCCESS in 5m 09s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/67f05224a078470499fb56fc3631f0a0 : FAILURE in 4m 11s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/f38a6c2ed784475bbb034cfa5d1adf39 : SUCCESS in 5m 28s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/7c79ee5c0191462abca2b2544ebb7a84 : SUCCESS in 5m 52s