[Openstack-stable-maint] Stable check of openstack/oslo.versionedobjects for ref refs/heads/stable/train failed

Build failed. https://zuul.opendev.org/t/openstack/buildset/b4b391c5d60044edb973512976778d... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/cd4e1ffb43c3497190c5aa4f5585ece8 : SUCCESS in 3m 43s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/bb34664656bd4dc5a63b87e0a3d34fd7 : FAILURE in 2m 55s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/83e59960e7ed416a9848ef6c5d8cda75 : SUCCESS in 3m 24s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/b53ccbc75dee42c0b0b4851de6c3645f : SUCCESS in 4m 18s