src/main.rs:93:28: 93:31 error: cannot borrow `*req` as mutable more than once at a time [E0499]
src/main.rs:93           let cookie_jar = req.get_mut::<CookieJar>().unwrap();
                                          ^~~
src/main.rs:93:28: 93:31 help: run `rustc --explain E0499` to see a detailed explanation
src/main.rs:92:25: 92:28 note: previous borrow of `*req` occurs here; the mutable borrow prevents subsequent moves, borrows, or modification of `*req` until the borrow ends
src/main.rs:92           let mut cid = req.get_mut::<Cid>().unwrap();
                                       ^~~
src/main.rs:110:8: 110:8 note: previous borrow ends here
src/main.rs:91       fn before(&self, req: &mut Request) -> IronResult<()> {
...
src/main.rs:110       }
                      ^
error: aborting due to previous error