no method next on vector

next.rs

 
// snip
   pub fn new(routes: ~[RegexRoute]) -> RegexRouter {
        let mut rev_map = HashMap::<~str,~str>::new();
        for route in routes {
            match route {
// snip

error: type `&mut ~[route::regexrouter::RegexRoute]` does not implement any method in scope named `next`