librustdoc: fix fallout

Author: Jorge Aparicio

src/librustdoc/html/markdown.rs

@@ -393,7 +393,7 @@ impl LangString {
         let mut seen_other_tags = false;
         let mut data = LangString::all_false();
 
-        let mut tokens = string.split(|c: char|
+        let mut tokens = string.split(|&: c: char|
             !(c == '_' || c == '-' || c.is_alphanumeric())
         );
 

src/librustdoc/lib.rs

@@ -19,6 +19,7 @@
 
 #![allow(unknown_features)]
 #![feature(globs, macro_rules, phase, slicing_syntax)]
+#![feature(unboxed_closures)]
 
 extern crate arena;
 extern crate getopts;