Anyway to better format this in the code module?

Long running stuff

  #[test]
  fn test_repeating_xor() {
    use set1::challenge2::xor;
	use rustc_serialize::hex::ToHex;
	
	let plain_text_hex = "4275726e696e672027656d2c20696620796f752061696e277420717569636b20616e64206e696d626c650a4920676f206372617a79207768656e2049206865617220612063796d62616c";
	           let key = "4943454943454943454943454943454943454943454943454943454943454943454943454943454943454943454943454943454943454943454943454943454943454943454943454943";
    let result = xor(plain_text_hex, key);
	assert_eq!("0b3637272a2b2e63622c2e69692a23693a2a3c6324202d623d63343c2a26226324272765272a282b2f20430a652e2c652a3124333a653e2b2027630c692b20283165286326302e27282f",result.to_hex());
  }