[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/0f825b74479e4f91a80ec572977ab2... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/8ee39a401e4c46a8ad6538141051f31e : SUCCESS in 4m 04s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/584131bd11ef40cb834dc42d316ae5d6 : SUCCESS in 5m 44s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/64528b2d619e4bb49cec4d1836841a0b : SUCCESS in 5m 04s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/3c3d8422d22d4d05b0d6bed651266da7 : FAILURE in 3m 56s