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

Build failed. https://zuul.opendev.org/t/openstack/buildset/e0fe2422306e45e18d0c333b21122e... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/a09024ae52af44d289a25cf1b05f57ab : TIMED_OUT in 30m 45s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/7a1f81a38cbf49f6b9dad348373e86b5 : SUCCESS in 2m 44s - openstack-tox-py38 https://zuul.opendev.org/t/openstack/build/740107dcc71e4bf9a941abc06dd81b66 : TIMED_OUT in 40m 43s