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

Build failed. https://zuul.opendev.org/t/openstack/buildset/817a06c6546f4e1fbeb6be67266f96... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/b989c3fb2e0b4eaf89d7b1cdbdad7186 : TIMED_OUT in 31m 06s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/17e05cca11e142f5a401bb5e2d415bfd : SUCCESS in 2m 56s - openstack-tox-py38 https://zuul.opendev.org/t/openstack/build/675eb75f7f6b40d7b4de2edeb7ce7ddf : TIMED_OUT in 40m 55s