{"ast_node_type":"other","tokens":[{"end":92,"kind":"keyword","start":0,"text":".map_err(|error|"}]}
        .map_err(|error| format!("Failed to read `{}`: {:?}", file_path.display(), error))?;
    let file = File::open(file_path)
    for line in BufReader::new(file).lines().map_while(Result::ok) {