[Openstack-stable-maint] Stable check of openstack/oslo.i18n for ref refs/heads/stable/train failed

Build failed. https://zuul.opendev.org/t/openstack/buildset/a212ce66a49749178347aee7c2032c... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/7f6d0013ddb94d788d80314288cb2e60 : SUCCESS in 4m 45s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/bf682d4b216d49459fd518dc6065101e : SUCCESS in 3m 45s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/0af3c1cb7a5148eca841effec1ffd15b : SUCCESS in 4m 42s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/2827341069da4509bce57cdc2cbcbd65 : FAILURE in 2m 40s