[Openstack-stable-maint] Stable check of openstack/oslo.cache for ref refs/heads/stable/wallaby failed

Build failed. https://zuul.opendev.org/t/openstack/buildset/ca7c50c930b945cb8c02711e6aa23d... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/e6bd1a58616d48109facfe54f2484cd5 : TIMED_OUT in 30m 50s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/cbe943db194849d6b16082c403dc6333 : SUCCESS in 3m 03s - openstack-tox-py38 https://zuul.opendev.org/t/openstack/build/4e77e8d5f5ba47629cdf1518cfd74112 : TIMED_OUT in 40m 47s