[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/079727ec357e4bfcbda97858db7f25... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/a5eb0beaff9a4393af6e087e7192601f : SUCCESS in 4m 04s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/269ba3a7e48f4983b3a426f720e2421b : FAILURE in 6m 15s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/55761ec17f8a4f51adc80fc1420b12f3 : SUCCESS in 3m 28s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/dc56dfc30f334bddb826443706bfd42c : SUCCESS in 4m 08s