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

Build failed. https://zuul.opendev.org/t/openstack/buildset/a1ad140e819a470385077e8bb37f84... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/d6d4f5c48e7b4bae848bbf7cf14eb701 : SUCCESS in 3m 22s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/0fc7e004973647e6b09fc925c318bdf3 : SUCCESS in 3m 26s - openstack-tox-py38 https://zuul.opendev.org/t/openstack/build/25f62b29ddc845c6a66293e72e230405 : POST_FAILURE in 4m 03s