Build failed. https://zuul.opendev.org/t/openstack/buildset/a6dc743a9cce440581d4fc7d3cf6a6d5 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/50a35eab6e66494ea574486d93e4398f : SUCCESS in 2m 55s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/eaba878f2b0348ee91bf665bc3718ac0 : SUCCESS in 3m 56s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/d84a11f92db2458d8642b4ec98f4b48e : SUCCESS in 2m 43s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/7a60779dc78d470b8a19e6a84348f039 : FAILURE in 3m 35s