[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/3a735e24983343df978fb9510269a2... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/a7a1c848b2fc427a9117ea58e666db33 : SUCCESS in 3m 32s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/79a84fd4e7d64063af34cfd91dd5641f : FAILURE in 3m 01s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/dd2c2ccfe5264eed86f5375c88f76c71 : SUCCESS in 3m 35s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/7ca7ae0f4b3445ff89e971c784e4d4e7 : SUCCESS in 4m 00s