040000 tree 2ed2691af4d00ecd4ff7db4cb16d7abb07f10073	rbe-debian8
040000 tree 9c4614a93868e8012aea08df739f7cbdda1cca85	rbe-debian9
040000 tree 9082929e514a2f32762782a734e169c30c237e8c	rbe-ubuntu16_04