Build failed. https://zuul.opendev.org/t/openstack/buildset/b8e2f010da1c4504a805c04ec6a2442a - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/98b677ef087a457b9b8d7c4d073ec168 : SUCCESS in 3m 49s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/040468b70bf840b4ae6bf7d89d9136df : FAILURE in 3m 16s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/e2772d02ef2b4e138dc676c07ab532c5 : SUCCESS in 3m 39s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/d769ac869e21433abe2350f3bca836db : SUCCESS in 4m 35s