From f27e4c5da3122a15d7be19d721a220516eeadcd2 Mon Sep 17 00:00:00 2001
From: David Tolnay <dtolnay@gmail.com>
Date: Sun, 5 Mar 2023 13:12:29 -0800
Subject: [PATCH] Fix message duplication between error Display and source()

---
 src/error.rs | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/error.rs b/src/error.rs
index 4ab80bed..e4c22c4f 100644
--- a/src/error.rs
+++ b/src/error.rs
@@ -184,8 +184,8 @@ impl ErrorImpl {
 
     fn source(&self) -> Option<&(dyn StdError + 'static)> {
         match self {
-            ErrorImpl::Io(err) => Some(err),
-            ErrorImpl::FromUtf8(err) => Some(err),
+            ErrorImpl::Io(err) => err.source(),
+            ErrorImpl::FromUtf8(err) => err.source(),
             ErrorImpl::Shared(err) => err.source(),
             _ => None,
         }