[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/f1eab2df0ce6413fb478e4b302ce45... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/5f2d6694e6cf4e9db91af1bea751f60b : SUCCESS in 3m 06s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/ef7fe09a22fc40849b5a46c8305e958a : FAILURE in 4m 00s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/2fcc294ff9054dbe8a13f48cd120d8be : SUCCESS in 4m 39s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/4b5b74035e324cafb8b7a5073239debd : SUCCESS in 4m 17s