1 files changed, 9 insertions, 0 deletions
diff --git a/compiler/rustc_infer/src/infer/error_reporting/note_and_explain.rs b/compiler/rustc_infer/src/infer/error_reporting/note_and_explain.rs
index b88677b3a4e..effb4090692 100644
--- a/compiler/rustc_infer/src/infer/error_reporting/note_and_explain.rs
+++ b/compiler/rustc_infer/src/infer/error_reporting/note_and_explain.rs
@@ -32,6 +32,15 @@ impl<'tcx> TypeErrCtxt<'_, 'tcx> {
                         diag.note("no two closures, even if identical, have the same type");
                         diag.help("consider boxing your closure and/or using it as a trait object");
                     }
+                    (ty::Coroutine(def_id1, ..), ty::Coroutine(def_id2, ..))
+                        if self.tcx.coroutine_is_async(def_id1)
+                            && self.tcx.coroutine_is_async(def_id2) =>
+                    {
+                        diag.note("no two async blocks, even if identical, have the same type");
+                        diag.help(
+                            "consider pinning your async block and casting it to a trait object",
+                        );
+                    }
                     (ty::Alias(ty::Opaque, ..), ty::Alias(ty::Opaque, ..)) => {
                         // Issue #63167
                         diag.note("distinct uses of `impl Trait` result in different opaque types");