fix: convert nix Fd to raw fd using into_raw()

src/modes/diff.rs

@@ -147,7 +147,7 @@ pub fn mode_diff(
         compression_type: CompressionType,
         fd_write: nix::unistd::Fd,
     ) -> std::thread::JoinHandle<()> {
-        let pipe_writer_raw = unsafe { std::fs::File::from_raw_fd(fd_write) };
+        let pipe_writer_raw = unsafe { std::fs::File::from_raw_fd(fd_write.into_raw()) };
         std::thread::spawn(move || {
             write_item_to_pipe(
                 item_path,