Build failed. https://zuul.opendev.org/t/openstack/buildset/396769a3241e4c87a5fb2a13acae5e15 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/dcfadc1d25ed486ca3c1afc5e8f2e42b : SUCCESS in 5m 19s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/8112c121348f4c30ad87d34f4a1ff899 : FAILURE in 4m 26s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/37100664f56b41adbb33f84048ec1c82 : SUCCESS in 5m 38s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/06b7ba6b44fc458692a4e1a6d98d7417 : SUCCESS in 5m 40s