From de122e673ac06f47652a593e0895f8367e049290 Mon Sep 17 00:00:00 2001
From: Harald Hoyer <harald@redhat.com>
Date: Fri, 15 Nov 2019 14:29:35 +0100
Subject: [PATCH] std::error::Chain: remove Copy

remove Copy from Iterator as per comment
https://github.com/rust-lang/rust/issues/58520#issuecomment-553682166
---
 src/libstd/error.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/libstd/error.rs b/src/libstd/error.rs
index df24b6635f4..d1cb0862d82 100644
--- a/src/libstd/error.rs
+++ b/src/libstd/error.rs
@@ -791,7 +791,7 @@ impl dyn Error {
 ///
 /// [`Error`]: trait.Error.html
 #[unstable(feature = "error_iter", issue = "58520")]
-#[derive(Copy, Clone, Debug)]
+#[derive(Clone, Debug)]
 pub struct Chain<'a> {
     current: Option<&'a (dyn Error + 'static)>,
 }