Build failed. https://zuul.opendev.org/t/openstack/buildset/4f7b941dba9b4457b07e0056443ab709 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/72942a7fbbef4fc79a0b862519905e46 : FAILURE in 3m 12s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/97df76ca3f3a4673aee36e5626d71728 : SUCCESS in 3m 24s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/56246b7e543847a79b291ed856717391 : SUCCESS in 3m 25s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/d088a23068514ed78e2f249c3b1ff32e : SUCCESS in 3m 33s