[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/15ae517cbe4d4019a8c3bdb84d3d9f... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/5336427b3a494a4390a438b2991c2e6c : SUCCESS in 3m 26s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/56c69ffdc8c64192bed3f9b5d290fe10 : SUCCESS in 4m 45s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/9e88d3d809304739a8f10f24b57cf570 : SUCCESS in 5m 00s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/af2392bb05704384a07962003c33f603 : FAILURE in 4m 40s