---

yaml
---
r: 13820
b: refs/heads/try
c: 305b1c8
h: refs/heads/master
v: v3

Author: marijnh

[refs]

@@ -2,5 +2,5 @@
 refs/heads/master: 61b1875c16de39c166b0f4d54bba19f9c6777d1a
 refs/heads/snap-stage1: e33de59e47c5076a89eadeb38f4934f58a3618a6
 refs/heads/snap-stage3: 4a81779abd786ff22d71434c6d9a5917ea4cdfff
-refs/heads/try: 888262b337d90a275074a2ad2ac119984b55205a
+refs/heads/try: 305b1c87019a1f2824193d1909efca6b13566240
 refs/tags/release-0.1: 1f5c5126e96c79d22cb7862f75304136e204f105

branches/try/src/comp/middle/typeck.rs

@@ -614,7 +614,9 @@ fn compare_impl_method(tcx: ty::ctxt, sp: span, impl_m: ty::method,
     } else {
         let auto_modes = vec::map2(impl_m.fty.inputs, if_m.fty.inputs, {|i, f|
             alt ty::struct(tcx, f.ty) {
-              ty::ty_param(0u, _) { {mode: ast::by_ref with i} }
+              ty::ty_param(0u, _) if i.mode == ast::mode_infer {
+                {mode: ast::by_ref with i}
+              }
               _ { i }
             }
         });