[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/80284725418149e59a2907d8cd1b21... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/4e3b9bb948f24fafbc402a8f1611d2d5 : SUCCESS in 4m 23s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/f6922360a252451c8d1cfab63c891861 : SUCCESS in 4m 47s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/df50ad5c1028420b8d2225cbdba11bdd : SUCCESS in 2m 52s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/4aeed737a2c146aba6af8fd23db2d8d2 : FAILURE in 3m 13s