[Openstack-stable-maint] Stable check of openstack/nova for ref refs/heads/stable/ussuri failed

Build failed. https://zuul.opendev.org/t/openstack/buildset/15d68d53fce64f80a5c03bd1ca96f4... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/73f9dea60391426ea157a15ae59da0e8 : TIMED_OUT in 30m 49s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/0f40da09210e489887c31c6159eaa039 : SUCCESS in 13m 05s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/5df471bb343a474fbd085c0a2284285d : SUCCESS in 11m 34s