FRTs are uninhabited

Author: BennoLossin

compiler/rustc_middle/src/ty/layout.rs

@@ -805,6 +805,7 @@ where
                 | ty::Float(_)
                 | ty::FnPtr(..)
                 | ty::Never
+                | ty::Field(..)
                 | ty::FnDef(..)
                 | ty::CoroutineWitness(..)
                 | ty::Foreign(..)

compiler/rustc_ty_utils/src/layout.rs

@@ -676,6 +676,8 @@ fn layout_of_uncached<'tcx>(
             tcx.mk_layout(layout)
         }
 
+        ty::Field(..) => tcx.mk_layout(LayoutData::never_type(cx)),
+
         ty::UnsafeBinder(bound_ty) => {
             let ty = tcx.instantiate_bound_regions_with_erased(bound_ty.into());
             cx.layout_of(ty)?.layout