[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/5d2caa8601784f02a2e9a0e91800db... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/381e8e0d5ebb4a7a867b13e5a349670a : SUCCESS in 3m 28s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/37d6146fd5aa414b9c6f85c106350a1c : FAILURE in 3m 09s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/e0023dc2f6da489fa26c027ac287fa78 : SUCCESS in 4m 16s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/b208c689a0ba47d6b7acc4989f3a88ed : SUCCESS in 4m 25s