040000 tree 44ead797f41d2aa9d63e3fc265a0aa3f6049496d	build
040000 tree 9fcd9748bb67a2201306d0467938ee2d1dfd1050	build_helpers
040000 tree 5821b91c79683445ef2660219ccf348dd721cb31	twister
040000 tree 3c3ba2506fa1a23a7098eaaee67a7280ffad317d	twister_blackbox