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

Build failed. https://zuul.opendev.org/t/openstack/buildset/70ff488f2d0d4a9eb442cbd9fad000... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/b7615ffd16484a48af217be8aa441908 : SUCCESS in 3m 24s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/ca17dc27314a453488a7a7573943c9bd : FAILURE in 3m 46s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/b26a0910248d4f84b6fcc9a6ac035cf6 : SUCCESS in 3m 29s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/bbfa7adf6d1941b0a243b558b2e5e762 : SUCCESS in 3m 50s