[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/54c575b69e8942d4b12927eb134c01... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/2f8160615ec3466da66f37553006fd17 : SUCCESS in 3m 22s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/ba4b5846ad934340bc3e4d5fc21e6bba : SUCCESS in 4m 05s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/46ced372350040cc87870202e5320996 : SUCCESS in 2m 54s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/a49e0efb33514481a897ceb53711ad17 : FAILURE in 3m 07s