[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/96816b7ca35540679cde28f2d6ca05... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/08e2a9abf31e4e48a1af1a50dedaf910 : SUCCESS in 3m 50s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/ddafdc728b364a45a1c45f05d6cf6b37 : FAILURE in 2m 46s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/8194dd21a20d4593877672c1fdc3761c : SUCCESS in 5m 12s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/306af70733db47e2af7471ac3701a0e5 : SUCCESS in 3m 41s