---

yaml
---
r: 82743
b: refs/heads/auto
c: 3709aa7
h: refs/heads/master
i:
  82741: 9721ce2
  82739: 3ab3681
  82735: 6810e2b
v: v3

Author: blake2-ppc

[refs]

@@ -13,7 +13,7 @@ refs/heads/try3: 9387340aab40a73e8424c48fd42f0c521a4875c0
 refs/tags/release-0.3.1: 495bae036dfe5ec6ceafd3312b4dca48741e845b
 refs/tags/release-0.4: e828ea2080499553b97dfe33b3f4d472b4562ad7
 refs/tags/release-0.5: 7e3bcfbf21278251ee936ad53e92e9b719702d73
-refs/heads/auto: 4a2f8ba8c9dc2e145859fa761e7e912dbf3cf598
+refs/heads/auto: 3709aa78d8fc75ed739e837d7c96205b8494188d
 refs/heads/servo: af82457af293e2a842ba6b7759b70288da276167
 refs/tags/release-0.6: b4ebcfa1812664df5e142f0134a5faea3918544c
 refs/tags/0.1: b19db808c2793fe2976759b85a355c3ad8c8b336

branches/auto/src/librustc/middle/check_match.rs

@@ -773,12 +773,12 @@ pub fn specialize(cx: &MatchCheckCtxt,
                         let num_elements = before.len() + after.len();
                         if num_elements < arity && slice.is_some() {
                             Some(vec::append(
-                                vec::concat(&[
+                                [
                                     before,
                                     vec::from_elem(
                                         arity - num_elements, wild()),
                                     after
-                                ]),
+                                ].concat_vec(),
                                 r.tail()
                             ))
                         } else if num_elements == arity {