Build failed. https://zuul.opendev.org/t/openstack/buildset/f9f06f2c03874a0ca02d7dacdf296a53 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/5bf26fbc73e14138adbe85b244bb9293 : SUCCESS in 3m 50s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/19767c9d87404af1a379bdeebd730275 : FAILURE in 3m 28s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/94fa6cd22e1e4a9499f93bc1c81f8945 : SUCCESS in 4m 36s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/de19f18791b84b17a19772c4063522cc : SUCCESS in 3m 56s