[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/85f6507aadcb4f38a5e1f58c27c868... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/926d05d3ec904deba5fe19932b72c12b : SUCCESS in 3m 05s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/e92af21a3c7f4d93afdd738c00eff348 : FAILURE in 3m 04s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/e426de505b5f4cb58c6cb5a33ee0dfc4 : SUCCESS in 2m 50s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/a17af487d3334c44b4abaa6f098895bf : SUCCESS in 3m 52s