diff --git a/src/libstd/error.rs b/src/libstd/error.rs index df24b6635f411..d1cb0862d82a8 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)>, }