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

Build failed. https://zuul.opendev.org/t/openstack/buildset/e864274d175e45c687c621044bf30d... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/a20448e4764945629fb71ece3a3f125c : FAILURE in 4m 06s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/70221d51447c4bea8c9009d930b8aba9 : FAILURE in 4m 10s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/eb83bb78a58e4542bed1aa51f6f256ef : FAILURE in 4m 01s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/fa4f770256f94d58a77739426d7bd812 : FAILURE in 4m 42s