040000 tree 44ead797f41d2aa9d63e3fc265a0aa3f6049496d	build
040000 tree 9fcd9748bb67a2201306d0467938ee2d1dfd1050	build_helpers
040000 tree ada6d2477026d97e6b811314925011dd1534c7b4	twister
040000 tree e7a768a9ecc559b240e0796dfa80bb8dabcb9d33	twister_blackbox