Rollup merge of rust-lang#66511 - haraldh:error_chain_nocopy, r=dtolnay

JohnTitor · web-flow · commit 8966f7633b1c · 2019-11-19T18:44:33.000+09:00
std::error::Chain: remove Copy remove Copy from Iterator as per comment rust-lang#58520 (comment) Tracker: rust-lang#58520
diff --git 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)>,
 }

Original file line number	Diff line number	Diff line change
`@@ -791,7 +791,7 @@ impl dyn Error {`
`791`	`791`	`///`
`792`	`792`	/// [`Error`]: trait.Error.html
`793`	`793`	`#[unstable(feature = "error_iter", issue = "58520")]`
`794`		`-#[derive(Copy, Clone, Debug)]`
	`794`	`+#[derive(Clone, Debug)]`
`795`	`795`	`pub struct Chain<'a> {`
`796`	`796`	`current: Option<&'a (dyn Error + 'static)>,`
`797`	`797`	`}`