[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/82837891f24f4fb88e5d1fa296ea38... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/bbb8783d1bf64c3682cdefd7298e90b3 : SUCCESS in 4m 08s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/f0c5169bd3dd4676b193de7ecdd5f9f0 : SUCCESS in 7m 37s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/0db86dc80cda4620951ccf964735d7d0 : SUCCESS in 5m 20s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/b1c28478e590464fa2e71aac29d708ac : FAILURE in 8m 40s