use slicing sugar

[rust.git] / src / librustc / middle / mem_categorization.rs

diff --git a/src/librustc/middle/mem_categorization.rs b/src/librustc/middle/mem_categorization.rs
index b29c24c586114ff6492c2a32e89647bf069c4564..fb9a16f86e5bcb730a4805155de58a871d969d4d 100644 (file)
--- a/src/librustc/middle/mem_categorization.rs
+++ b/src/librustc/middle/mem_categorization.rs
@@ -584,9 +584,9 @@ pub fn cat_def(&self,
                   _ => {
                       self.tcx().sess.span_bug(
                           span,
-                          format!("Upvar of non-closure {} - {}",
+                          &format!("Upvar of non-closure {} - {}",
                                   fn_node_id,
-                                  ty.repr(self.tcx())).index(&FullRange));
+                                  ty.repr(self.tcx()))[]);
                   }
               }
           }