don't skip inference for type in offset_of!

compiler/rustc_mir_build/src/build/expr/as_rvalue.rs

@@ -481,10 +481,9 @@ impl<'a, 'tcx> Builder<'a, 'tcx> {
                 }))))
             }
 
-            ExprKind::OffsetOf { container, fields } => block.and(Rvalue::NullaryOp(
-                NullOp::OffsetOf(fields),
-                this.tcx.erase_regions(container),
-            )),
+            ExprKind::OffsetOf { container, fields } => {
+                block.and(Rvalue::NullaryOp(NullOp::OffsetOf(fields), container))
+            }
 
             ExprKind::Literal { .. }
             | ExprKind::NamedConst { .. }