rust upgrade

src/header/common/set_cookie.rs

@@ -13,6 +13,10 @@ use cookie::CookieJar;
 #[deriving(Clone, PartialEq, Show)]
 pub struct SetCookie(pub Vec<Cookie>);
 
+//TODO: remove when fixed in libstd
+unsafe impl Send for SetCookie {}
+unsafe impl Sync for SetCookie {}
+
 deref!(SetCookie -> Vec<Cookie>);
 
 impl Header for SetCookie {