diff --git a/crates/rust-analyzer/src/dispatch.rs b/crates/rust-analyzer/src/dispatch.rs
index 36f0c1d520e..9c8815e29e8 100644
--- a/crates/rust-analyzer/src/dispatch.rs
+++ b/crates/rust-analyzer/src/dispatch.rs
@@ -23,7 +23,7 @@ pub(crate) fn on_sync<R>(
     ) -> Result<&mut Self>
     where
         R: lsp_types::request::Request + 'static,
-        R::Params: DeserializeOwned + panic::UnwindSafe + 'static,
+        R::Params: DeserializeOwned + panic::UnwindSafe + fmt::Debug + 'static,
         R::Result: Serialize + 'static,
     {
         let (id, params) = match self.parse::<R>() {
@@ -34,6 +34,7 @@ pub(crate) fn on_sync<R>(
         };
         let world = panic::AssertUnwindSafe(&mut *self.global_state);
         let response = panic::catch_unwind(move || {
+            stdx::panic_context::enter(format!("request: {} {:#?}", R::METHOD, params));
             let result = f(world.0, params);
             result_to_response::<R>(id, result)
         })
@@ -159,6 +160,7 @@ pub(crate) fn on<N>(
                 return Ok(self);
             }
         };
+        stdx::panic_context::enter(format!("notification: {}", N::METHOD));
         f(self.global_state, params)?;
         Ok(self)
     }