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

Build failed. https://zuul.opendev.org/t/openstack/buildset/909b421824d5481b89fc2f27e9094b... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/a711a0d6985f4771bd18267b1e57e5b2 : POST_FAILURE in 3m 48s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/dcdbd9d368af4980b84e553e18bb5a0d : SUCCESS in 3m 27s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/9c9b4cf679ae455da4eb47181f9e6920 : SUCCESS in 4m 15s