Build failed. https://zuul.opendev.org/t/openstack/buildset/73a1db89cd7d4c59bd72ace4bb4eee5b - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/c403a66765964df698badf144125f3b3 : SUCCESS in 6m 12s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/473d7e14a0dd4d86b883a24cb2240198 : SUCCESS in 7m 51s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/9edf69890cae4165bde25f020976713a : FAILURE in 7m 40s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/00cd2fb4f7cb4e49880b773f16576fd9 : SUCCESS in 10m 53s