*> trace * C.main*
*> trace * _vinit*
*> trace * builtin arguments/0*
*> trace * main main.main/0*
*> trace * main main.f1/0*
*> trace * main main.f2/0*
*> trace * main main.f3/0*
*> trace * os os.join_path/2*
*> trace *_vcleanup*