Build failed. https://zuul.opendev.org/t/openstack/buildset/05a09af30a614e0d83f1f89af8c609e3 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/0927ba9dce1f4a1fa525225cb200a644 : SUCCESS in 3m 07s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/716b0ef1376c4b73946ab64a4c4f98a7 : SUCCESS in 3m 10s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/a88133ae0b2e4f67bd15212b9a0fe4de : FAILURE in 2m 57s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/4b0642c58b074b71ad3bc2acf6478197 : FAILURE in 2m 52s