{"ast_node_type":"other","tokens":[{"end":79,"kind":"keyword","start":0,"text":"libc::fcntl(err_pipe.as_raw_fd(),"}]}
            libc::fcntl(err_pipe.as_raw_fd(), libc::F_SETFL, libc::O_NONBLOCK);
            libc::fcntl(out_pipe.as_raw_fd(), libc::F_SETFL, libc::O_NONBLOCK);
        }