Panic called Result::unwrap() on an Err value: TryFromIntError(())

[qarmin]

Code

fn check_file(path: &str) {
    let content = match fs::read(&path) {
        Ok(content) => content,
        Err(e) => {
            println!("{e}");
            return;
        }
    };
    println!("Checking file: {path}");

    let mut parser = MediaParser::new();

    // Parse unseekable
    let reader = Cursor::new(&content);
    let Ok(ms) = MediaSource::unseekable(reader) else {
        return ;
    };
    let iter: Result<ExifIter, _> = parser.parse(ms);
    if let Ok(iter) = iter {
        let _ = iter.parse_gps_info();
        for i in iter {
            let s = i;
            s.tag_code();
            s.get_value();
            let _ = s.get_result();
            s.tag();
            s.ifd_index();
            s.has_value();
        }
    }

    let reader = Cursor::new(&content);
    let Ok(ms) = MediaSource::unseekable(reader) else {
        return ;
    };
    let _: Result<TrackInfo, _> = parser.parse(ms);

    // Parse seekable
    let reader = Cursor::new(&content);
    let Ok(ms) = MediaSource::seekable(reader) else {
        return ;
    };
    let iter: Result<ExifIter, _> = parser.parse(ms);
    if let Ok(iter) = iter {
        let _ = iter.parse_gps_info();
        for i in iter {
            let s = i;
            s.tag_code();
            s.get_value();
            let _ = s.get_result();
            s.tag();
            s.ifd_index();
            s.has_value();
        }
    }

    let reader = Cursor::new(&content);
    let Ok(ms) = MediaSource::seekable(reader) else {
        return ;
    };
    let _: Result<TrackInfo, _> = parser.parse(ms);
}

panics here

thread 'main' panicked at /home/runner/.cargo/git/checkouts/nom-exif-cf4dd29e16c043e1/d29b214/src/skip.rs:99:46:
called `Result::unwrap()` on an `Err` value: TryFromIntError(())
stack backtrace:
   0: rust_begin_unwind
             at /rustc/5ec7d6eee7e0f5236ec1559499070eaf836bc608/library/std/src/panicking.rs:665:5
   1: core::panicking::panic_fmt
             at /rustc/5ec7d6eee7e0f5236ec1559499070eaf836bc608/library/core/src/panicking.rs:76:14
   2: core::result::unwrap_failed
             at /rustc/5ec7d6eee7e0f5236ec1559499070eaf836bc608/library/core/src/result.rs:1699:5
   3: core::result::Result<T,E>::unwrap
             at /home/runner/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/core/src/result.rs:1104:23
   4: <nom_exif::skip::Seekable as nom_exif::skip::Skip<R>>::skip_by_seek
             at /home/runner/.cargo/git/checkouts/nom-exif-cf4dd29e16c043e1/d29b214/src/skip.rs:99:30
   5: nom_exif::parser::BufParser::clear_and_skip
             at /home/runner/.cargo/git/checkouts/nom-exif-cf4dd29e16c043e1/d29b214/src/parser.rs:235:20
   6: nom_exif::parser::BufParser::load_and_parse_with_offset
             at /home/runner/.cargo/git/checkouts/nom-exif-cf4dd29e16c043e1/d29b214/src/parser.rs:198:29
   7: nom_exif::parser::BufParser::load_and_parse
             at /home/runner/.cargo/git/checkouts/nom-exif-cf4dd29e16c043e1/d29b214/src/parser.rs:166:9
   8: <nom_exif::video::TrackInfo as nom_exif::parser::ParseOutput<R,S>>::parse
             at /home/runner/.cargo/git/checkouts/nom-exif-cf4dd29e16c043e1/d29b214/src/parser.rs:317:26
   9: nom_exif::parser::MediaParser::do_parse
             at /home/runner/.cargo/git/checkouts/nom-exif-cf4dd29e16c043e1/d29b214/src/parser.rs:458:19
  10: nom_exif::parser::MediaParser::parse
             at /home/runner/.cargo/git/checkouts/nom-exif-cf4dd29e16c043e1/d29b214/src/parser.rs:447:19
  11: nom_exif::check_file
             at /home/runner/work/Automated-Fuzzer/Automated-Fuzzer/src/crates/nom_exif/src/main.rs:88:35
  12: nom_exif::main
             at /home/runner/work/Automated-Fuzzer/Automated-Fuzzer/src/crates/nom_exif/src/main.rs:24:9
  13: core::ops::function::FnOnce::call_once
             at /home/runner/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/core/src/ops/function.rs:250:5

crash-7d2528cfb4f2f957f88032d5063dc341c62559a3_minimized.zip

nom-exif binary to test is available here - https://github.com/qarmin/Automated-Fuzzer/releases/download/Nightly/nom_exif.7z