diff --git a/src/derive.rs b/src/derive.rs
index 7cb85b8c9..7110cf714 100644
--- a/src/derive.rs
+++ b/src/derive.rs
@@ -71,12 +71,9 @@ impl LintPass for Derive {
 
 impl LateLintPass for Derive {
     fn check_item(&mut self, cx: &LateContext, item: &Item) {
-        
-
         if_let_chain! {[
             let ItemImpl(_, _, _, Some(ref trait_ref), _, _) = item.node
         ], {
-
             let ty = cx.tcx.lookup_item_type(cx.tcx.map.local_def_id(item.id)).ty;
             if item.attrs.iter().any(is_automatically_derived) {
                 check_hash_peq(cx, item.span, trait_ref, ty);
diff --git a/tests/compile-fail/derive.rs b/tests/compile-fail/derive.rs
index 66b04a66d..14b1106ad 100755
--- a/tests/compile-fail/derive.rs
+++ b/tests/compile-fail/derive.rs
@@ -35,6 +35,17 @@ impl Clone for Qux {
     fn clone(&self) -> Self { Qux }
 }
 
+// See #666
+#[derive(Copy)]
+struct Lt<'a> {
+    a: &'a u8,
+}
+
+impl<'a> Clone for Lt<'a> {
+//~^ ERROR you are implementing `Clone` explicitly on a `Copy` type
+    fn clone(&self) -> Self { unimplemented!() }
+}
+
 // Ok, `Clone` cannot be derived because of the big array
 #[derive(Copy)]
 struct BigArray {
diff --git a/tests/ice-666.rs b/tests/ice-666.rs
deleted file mode 100644
index b681f4b2c..000000000
--- a/tests/ice-666.rs
+++ /dev/null
@@ -1,24 +0,0 @@
-#![feature(plugin)]
-#![plugin(clippy)]
-
-pub struct Lt<'a> {
-    _foo: &'a u8,
-}
-
-impl<'a> Copy for Lt<'a> {}
-impl<'a> Clone for Lt<'a> {
-    fn clone(&self) -> Lt<'a> {
-        unimplemented!();
-    }
-}
-
-pub struct Ty<A> {
-    _foo: A,
-}
-
-impl<A: Copy> Copy for Ty<A> {}
-impl<A> Clone for Ty<A> {
-    fn clone(&self) -> Ty<A> {
-        unimplemented!();
-    }
-}