rust_get_argcrust_get_argvrust_getcwdrust_path_is_dirrust_path_existsrust_list_files2rust_process_waitlast_os_errorrust_set_exit_statusrust_get_argcfn rust_get_argc() -> c_intrust_get_argvfn rust_get_argv() -> **c_charrust_getcwdfn rust_getcwd() -> ~strrust_path_is_dirfn rust_path_is_dir(path: *libc::c_char) -> c_intrust_path_existsfn rust_path_exists(path: *libc::c_char) -> c_intrust_list_files2fn rust_list_files2(&&path: ~str) -> ~[~str]rust_process_waitfn rust_process_wait(handle: c_int) -> c_intlast_os_errorfn last_os_error() -> ~strrust_set_exit_statusfn rust_set_exit_status(code: libc::intptr_t)