Build failed. https://zuul.opendev.org/t/openstack/buildset/062b355d830940cbb13f5ac3e7cd21e9 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/675d31febc9a4df7aef1de78adc9648a : FAILURE in 4m 03s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/9f29559928944ebc9ad5f035ed3369bc : FAILURE in 4m 30s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/d135d1f4d4ac43e99131e8aff5a7edd6 : FAILURE in 4m 00s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/aa20b5fbb5274fa0a6358a812097e9a8 : FAILURE in 4m 44s