Note that that loop function now looks like (the for loop has changed since 0.7): fn hexdigest(&self) -> ~str { let mut acc = ~""; for &byte in

Note that that loop function now looks like (the for loop has changed since 0.7): fn hexdigest(&self) -> ~str { let mut acc = ~""; for &byte in self.digest.iter() { acc.push_str(fmt!("%02x", byte as uint)); } acc }