Improve opaque error message for Handler::layer (#1336)

tokio-rs · Aug 28, 2022 · 3f92f7d · 3f92f7d
1 parent 805463c
commit 3f92f7d
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/axum/src/handler/mod.rs b/axum/src/handler/mod.rs
@@ -140,7 +140,7 @@ pub trait Handler<T, S, B = Body>: Clone + Send + Sized + 'static {
     /// ```
     fn layer<L>(self, layer: L) -> Layered<L, Self, T, S, B>
     where
-        L: Layer<WithState<Self, T, S, B>>,
+        L: Layer<WithState<Self, T, S, B>> + Clone,
     {
         Layered {
             layer,