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

Build failed. https://zuul.opendev.org/t/openstack/buildset/10330b78643d46229078a7dd24ab70... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/6d22e2c1f7514180875250ddc2f0f5e7 : SUCCESS in 5m 43s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/d98d9a610af84901a4d1c181249ed161 : SUCCESS in 5m 11s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/4a48a1a9e6ca41d197c8c12127dd9b96 : SUCCESS in 4m 46s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/6c15681a13dd4a06b04d32d4d9a8a204 : FAILURE in 4m 25s