Rust image resize, try to overcome InsufficientMemory rust image - without success08.12.22

rust image resize, try  to overcome InsufficientMemory rust image - - without success
  
  let _r = fs::create_dir_all(_spd).await;
    let mut f = std::fs::File::open(&_path).expect("no file found");
    let metadata = std::fs::metadata(&_path).expect("unable to read metadata");
    let mut buffer = vec![0; metadata.len() as usize];
    f.read(&mut buffer).expect("buffer overflow");
    let format = image::guess_format(&buffer).unwrap();
    let mut reader = ImageReader::with_format(std::io::Cursor::new(buffer), format);
    reader.no_limits();
    let img = reader.decode().unwrap();

//let img = image::open(&_path).unwrap();                                                                                                                                                                                                                                               
    let thumb = img.thumbnail(_width.parse().unwrap(), _height.parse().unwrap());
    thumb.save(&_sp).unwrap();
  }
    let _file = actix_files::NamedFile::open_async(_sp).await.unwrap();
    _file.into_response(&_req)

https://github.com/negezor/image-rs-decode-png-repro/blob/d218ee8245486ba499b00c24560c4e80f14aff71/src/main.rs

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Rust image resize, try to overcome InsufficientMemory rust image - without success08.12.22

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