[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/49b27e3df21f4734a0a3b9f138c406... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/54f22d9a67a54bc2b1b9011ef9b0272c : SUCCESS in 4m 11s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/92382482cd2541f1876042bd1bcfa8f1 : FAILURE in 6m 19s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/d12553f77cf1452bb64094904ba792e0 : SUCCESS in 4m 58s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/06c35efefdd74211b54dd622127a5cb5 : SUCCESS in 3m 48s