040000 tree 44ead797f41d2aa9d63e3fc265a0aa3f6049496d	build
040000 tree 9fcd9748bb67a2201306d0467938ee2d1dfd1050	build_helpers
040000 tree 6a377cea92da91ed717af1c33db4ce939419f9a3	twister
040000 tree 4472b284bd57ef4a641d0f5af0da48b565622930	twister_blackbox