Build failed. https://zuul.opendev.org/t/openstack/buildset/9aadd846b58e48d3ad2c7553c70d734b - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/9757cad8b6494a6b8a30b0e12f46b140 : SUCCESS in 3m 10s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/00e44165ce8d4262b94e21dbd117ad4b : SUCCESS in 4m 31s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/d2768e5d5e9849509c0a2124c5393825 : SUCCESS in 2m 34s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/20cc264eff9746b097d181c93da32601 : FAILURE in 2m 59s