[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/2142b136c1c5487887390a90d1879f... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/c642ecd3361642b58c64e895b7e2d712 : SUCCESS in 4m 13s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/de360a20dddc4570b10d295dce26f519 : FAILURE in 5m 50s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/4d7f3d5095e049eca0670b1bcd28396a : SUCCESS in 3m 01s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/c850e9ef019d49deb0418e387d8899f1 : SUCCESS in 4m 46s