[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/eb095e739104415eafa8f86e5398e1... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/e33de2a1f38e4c7bbf82eddc5d750d63 : SUCCESS in 4m 57s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/fea55c06f5a9489ba5518bf785d82d23 : SUCCESS in 5m 41s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/f159547772d64b92934ab8601342204a : SUCCESS in 5m 05s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/f1e5e8b0b4124b22b24f000ec6fd22ad : FAILURE in 4m 39s