[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/9926555368a04fdc95bf539f796316... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/7753c0a78ac94195ad63507b59d0cf5c : SUCCESS in 4m 08s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/e6aeecdc71e34e8e9c15330e3ba3d130 : FAILURE in 3m 13s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/b409b5182db54568ba2642fa05cc31c6 : SUCCESS in 3m 33s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/2ca7da7f201141b5b11d3bfac1eb484a : SUCCESS in 4m 11s