[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/8b8f4f4c4bc241e2827bd9cf36bf65... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/1dfd974977a647dbbbb58a5c424b7bfe : SUCCESS in 3m 42s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/c661543a94fa4a87a15c5f2d68945e3b : SUCCESS in 5m 56s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/9dcf425e1bf64dfdbb6a19e4dee14cf4 : SUCCESS in 6m 37s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/be776434dc81441ca30962a21ffe3f57 : FAILURE in 6m 18s