diff --git a/src/eval_context.rs b/src/eval_context.rs
index bbee49bae84..3ddecc43373 100644
--- a/src/eval_context.rs
+++ b/src/eval_context.rs
@@ -259,31 +259,36 @@ impl<'a, 'tcx> EvalContext<'a, 'tcx> {
                 mutability: mir::Mutability::Mut,
                 ty: tcx.mk_nil(),
                 name: None,
-                source_info: None,
+                source_info,
+                is_user_variable: false,
             },
             mir::LocalDecl {
                 mutability: mir::Mutability::Mut,
                 ty: tcx.mk_mut_ptr(tcx.mk_slice(tcx.mk_param(0, Symbol::intern("T")))),
                 name: None,
-                source_info: None,
+                source_info,
+                is_user_variable: false,
             },
             mir::LocalDecl {
                 mutability: mir::Mutability::Mut,
                 ty: tcx.types.usize,
                 name: None,
-                source_info: None,
+                source_info,
+                is_user_variable: false,
             },
             mir::LocalDecl {
                 mutability: mir::Mutability::Mut,
                 ty: tcx.types.usize,
                 name: None,
-                source_info: None,
+                source_info,
+                is_user_variable: false,
             },
             mir::LocalDecl {
                 mutability: mir::Mutability::Mut,
                 ty: tcx.types.bool,
                 name: None,
-                source_info: None,
+                source_info,
+                is_user_variable: false,
             },
         ];
         let seq_drop_glue = mir::Mir::new(