[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/6306bafa62c744a78757242d17d8ad... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/9d4aa57bb84a42318987bc80b9b05bfb : SUCCESS in 3m 55s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/fc2240e222424212ade5d53f202fb279 : FAILURE in 3m 43s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/808a4fcd0e424150b9292d589a702880 : SUCCESS in 4m 02s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/11ea00d8f8fa4e199a1433516cf586cc : SUCCESS in 3m 23s