[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/fcda110cc18440b2ab30981bbe9046... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/e65d1aadeffc44579db9fd42eda50ce1 : SUCCESS in 3m 24s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/50b594055ab24451810e161fc0caec43 : FAILURE in 3m 17s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/eb3f730775c04db58dd6d42d39573906 : SUCCESS in 3m 14s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/487d60c0f96a4c2f920fb39115dc371e : SUCCESS in 3m 16s