diff --git a/serde/src/private/de.rs b/serde/src/private/de.rs
index 6bb6cd44c..daf833881 100644
--- a/serde/src/private/de.rs
+++ b/serde/src/private/de.rs
@@ -2561,7 +2561,6 @@ where
     }
 }
 
-#[derive(Debug)]
 pub struct StrDeserializer<'a, E> {
     value: &'a str,
     marker: PhantomData<E>,
@@ -2576,8 +2575,6 @@ impl<'a, E> StrDeserializer<'a, E> {
     }
 }
 
-impl_copy_clone!(StrDeserializer<'a>);
-
 impl<'de, 'a, E> Deserializer<'de> for StrDeserializer<'a, E>
 where
     E: Error,
@@ -2598,7 +2595,6 @@ where
     }
 }
 
-#[derive(Debug)]
 pub struct BorrowedStrDeserializer<'de, E> {
     value: &'de str,
     marker: PhantomData<E>,
@@ -2613,8 +2609,6 @@ impl<'de, E> BorrowedStrDeserializer<'de, E> {
     }
 }
 
-impl_copy_clone!(BorrowedStrDeserializer<'de>);
-
 impl<'de, E> Deserializer<'de> for BorrowedStrDeserializer<'de, E>
 where
     E: Error,