Stop using PolyTraitRef for closure/coroutine predicates already instantiated w placeholders

2024-04-13 12:34:35 -04:00
parent 3a0db6c152
commit d2ec957680
5 changed files with 29 additions and 28 deletions
--- a/compiler/rustc_trait_selection/src/traits/select/confirmation.rs
+++ b/compiler/rustc_trait_selection/src/traits/select/confirmation.rs
@@ -1079,8 +1079,8 @@ impl<'cx, 'tcx> SelectionContext<'cx, 'tcx> {
            })
            .map_err(|terr| {
                SignatureMismatch(Box::new(SignatureMismatchData {
-                    expected_trait_ref: ty::Binder::dummy(obligation_trait_ref),
-                    found_trait_ref: ty::Binder::dummy(found_trait_ref),
+                    expected_trait_ref: obligation_trait_ref,
+                    found_trait_ref,
                    terr,
                }))
            })