From 04118431702ec57575bc9948361f4b50a315c162 Mon Sep 17 00:00:00 2001
From: Hidehito Yabuuchi <hdht.ybuc@gmail.com>
Date: Mon, 26 Feb 2018 18:01:10 +0900
Subject: [PATCH] Fix for rustc 1.26.0-nightly (322d7f7b9 2018-02-25)

---
 clippy_lints/src/derive.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/clippy_lints/src/derive.rs b/clippy_lints/src/derive.rs
index d327d0570f1ae..8702ec1e716a8 100644
--- a/clippy_lints/src/derive.rs
+++ b/clippy_lints/src/derive.rs
@@ -149,7 +149,7 @@ fn check_copy_clone<'a, 'tcx>(cx: &LateContext<'a, 'tcx>, item: &Item, trait_ref
                     }
                 }
                 for subst in substs {
-                    if let Some(subst) = subst.as_type() {
+                    if let ty::subst::UnpackedKind::Type(subst) = subst.unpack() {
                         if let ty::TyParam(_) = subst.sty {
                             return;
                         }