3 files changed, 4 insertions, 0 deletions
diff --git a/compiler/rustc_const_eval/src/interpret/intrinsics.rs b/compiler/rustc_const_eval/src/interpret/intrinsics.rs
index 1af8438534f..e9eca8814c3 100644
--- a/compiler/rustc_const_eval/src/interpret/intrinsics.rs
+++ b/compiler/rustc_const_eval/src/interpret/intrinsics.rs
@@ -90,6 +90,7 @@ pub(crate) fn eval_nullary_intrinsic<'tcx>(
             | ty::CoroutineClosure(_, _)
             | ty::Coroutine(_, _)
             | ty::CoroutineWitness(..)
+            | ty::UnsafeBinder(_)
             | ty::Never
             | ty::Tuple(_)
             | ty::Error(_) => ConstValue::from_target_usize(0u64, &tcx),
diff --git a/compiler/rustc_const_eval/src/interpret/stack.rs b/compiler/rustc_const_eval/src/interpret/stack.rs
index 6512675530a..7d0e0492792 100644
--- a/compiler/rustc_const_eval/src/interpret/stack.rs
+++ b/compiler/rustc_const_eval/src/interpret/stack.rs
@@ -505,6 +505,8 @@ impl<'tcx, M: Machine<'tcx>> InterpCx<'tcx, M> {
                 // We don't want to do any queries, so there is not much we can do with ADTs.
                 ty::Adt(..) => false,
 
+                ty::UnsafeBinder(ty) => is_very_trivially_sized(ty.skip_binder()),
+
                 ty::Alias(..) | ty::Param(_) | ty::Placeholder(..) => false,
 
                 ty::Infer(ty::TyVar(_)) => false,
diff --git a/compiler/rustc_const_eval/src/interpret/validity.rs b/compiler/rustc_const_eval/src/interpret/validity.rs
index 6f101395ccf..d75df1ad442 100644
--- a/compiler/rustc_const_eval/src/interpret/validity.rs
+++ b/compiler/rustc_const_eval/src/interpret/validity.rs
@@ -768,6 +768,7 @@ impl<'rt, 'tcx, M: Machine<'tcx>> ValidityVisitor<'rt, 'tcx, M> {
                 // Nothing to check.
                 interp_ok(true)
             }
+            ty::UnsafeBinder(_) => todo!("FIXME(unsafe_binder)"),
             // The above should be all the primitive types. The rest is compound, we
             // check them by visiting their fields/variants.
             ty::Adt(..)