VERY FISHY; NEED TEST

Author: oli-obk

compiler/rustc_const_eval/src/interpret/validity.rs

@@ -468,6 +468,7 @@ impl<'rt, 'mir, 'tcx: 'mir, M: Machine<'mir, 'tcx>> ValidityVisitor<'rt, 'mir, '
                         let is_mut = matches!(
                             self.ecx.tcx.def_kind(did),
                             DefKind::Static { mt: Mutability::Mut, .. }
+                                | DefKind::Static { nested: true, .. }
                         ) || !self
                             .ecx
                             .tcx