[Openstack-stable-maint] Stable check of openstack/oslo.messaging for ref refs/heads/stable/train failed

Build failed. - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/49e485e27e92473aab90350057c0071c : SUCCESS in 4m 47s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/06813c7d63b04917b6532193f9c0f44d : SUCCESS in 6m 04s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/41283bee37af47688b1d49cc1994d8bd : SUCCESS in 6m 24s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/4969bc0ed63042cbba6c0b9ab0f04415 : FAILURE in 6m 33s