X-Git-Url: https://git.lizzy.rs/?a=blobdiff_plain;f=src%2Flibstd%2Ferror.rs;h=5cc7dcdae1fcd5917db45d4210891758b3041df4;hb=760a98fb5e1c964efbe5cb36710fff892b547c51;hp=c8978a94fcda46507e007c3cdf58fc0bfaadc453;hpb=6282fae46f34cdf1700a218120655ce1582c4e07;p=rust.git

diff --git a/src/libstd/error.rs b/src/libstd/error.rs
index c8978a94fcd..5cc7dcdae1f 100644
--- a/src/libstd/error.rs
+++ b/src/libstd/error.rs
@@ -314,7 +314,6 @@ impl From<String> for Box<dyn Error + Send + Sync> {
     ///     mem::size_of::<Box<dyn Error + Send + Sync>>() == mem::size_of_val(&a_boxed_error))
     /// ```
     fn from(err: String) -> Box<dyn Error + Send + Sync> {
-        #[derive(Debug)]
         struct StringError(String);
 
         impl Error for StringError {
@@ -327,6 +326,13 @@ fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
             }
         }
 
+        // Purposefully skip printing "StringError(..)"
+        impl Debug for StringError {
+            fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
+                Debug::fmt(&self.0, f)
+            }
+        }
+
         Box::new(StringError(err))
     }
 }