librustc added clone() calls to placate new by-value closure changes.

Author: pcwalton

src/librustc/middle/typeck/collect.rs

@@ -789,7 +789,8 @@ pub fn convert_struct(ccx: &CrateCtxt,
                 // Enum-like.
                 write_ty_to_tcx(tcx, ctor_id, selfty);
 
-                tcx.tcache.borrow_mut().insert(local_def(ctor_id), tpt);
+                tcx.tcache.borrow_mut().insert(local_def(ctor_id),
+                                               tpt.clone());
             } else if struct_def.fields.get(0).node.kind.is_unnamed() {
                 // Tuple-like.
                 let inputs: Vec<_> = struct_def.fields.iter().map(