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

Build failed. https://zuul.opendev.org/t/openstack/buildset/2655250a634e4b2b971efd9a4271e8... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/2d9f51f70de347a29e7c6f20a7335020 : SUCCESS in 3m 26s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/a596c7d0f6b84bbdbca32ebb13606a70 : SUCCESS in 3m 38s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/3468524759b34931b6fa907e91de933d : SUCCESS in 2m 49s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/5c794a328a014618a1ade45a4aa48daa : FAILURE in 4m 41s