[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/6ebcb4711319402b97787788f594cb... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/509c5d3697f345449621dab5f93dcc6d : SUCCESS in 3m 45s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/75efee5931bb428fa5c53665838a21d0 : FAILURE in 3m 07s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/a0e3d12eace440ec966bf9942e819665 : SUCCESS in 3m 00s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/d9c87994c59b43b89476156d546d1989 : SUCCESS in 3m 31s