Read a blob file in Rust

blob.rs

extern crate flate2;

use std::old_io::{BufferedReader, File};
use flate2::reader::ZlibDecoder;

#[test]
fn test() {
    let path = ".git/objects/c3/05bbc0533de6c05e73f37280d31667c5514169";
    let file = File::open(&Path::new(path));
    let mut reader = BufferedReader::new(file);

    let mut d = ZlibDecoder::new(reader);
    let bytes = d.read_to_end().unwrap();

    let null_byte_index = bytes.position_elem(&0).unwrap();
    let header = &bytes[0..null_byte_index];
    let blob_contents = &bytes[null_byte_index + 1..];
    println!("{:?}", std::str::from_utf8(header));
    println!("{}", std::str::from_utf8(blob_contents).unwrap());
    println!("{}", blob_contents.len());

    panic!();
}