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

Build failed. https://zuul.opendev.org/t/openstack/buildset/e93fe5ddba7341dab142022e8dcb8e... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/b320c4a51d14464f91375e5cbabcbfff : TIMED_OUT in 31m 12s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/052007e2a8344af58763d32ab58d3fbe : SUCCESS in 2m 38s - openstack-tox-py38 https://zuul.opendev.org/t/openstack/build/bd4fc1f1330a4016b861409cfcc1e3cb : TIMED_OUT in 40m 48s