[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/87154c407fd94b0b84c78d8c92f967... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/63772acad497404280893ab34bde9ba7 : SUCCESS in 4m 18s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/4f7e2d8f0d424351bfd32e0f4de07cc9 : FAILURE in 3m 01s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/09a76c37bfc1492e82c88dc0e5dc998d : SUCCESS in 3m 37s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/e4caacef32554095a721951858488199 : SUCCESS in 4m 19s