diff --git a/src/interpreter/step.rs b/src/interpreter/step.rs
index 2509aba09000..7eaf92c9b5ac 100644
--- a/src/interpreter/step.rs
+++ b/src/interpreter/step.rs
@@ -30,7 +30,7 @@ impl<'a, 'tcx> EvalContext<'a, 'tcx> {
         let mir = self.mir();
         let basic_block = &mir.basic_blocks()[block];
 
-        if let Some(ref stmt) = basic_block.statements.get(stmt_id) {
+        if let Some(stmt) = basic_block.statements.get(stmt_id) {
             let mut new = Ok(0);
             ConstantExtractor {
                 span: stmt.source_info.span,
diff --git a/src/interpreter/vtable.rs b/src/interpreter/vtable.rs
index edcdccf346cf..6a3de7aae808 100644
--- a/src/interpreter/vtable.rs
+++ b/src/interpreter/vtable.rs
@@ -164,7 +164,7 @@ impl<'a, 'tcx> EvalContext<'a, 'tcx> {
                 // method could then never be called, so we do not want to
                 // try and trans it, in that case. Issue #23435.
                 if mth.is_provided {
-                    let predicates = mth.method.predicates.predicates.subst(self.tcx, &mth.substs);
+                    let predicates = mth.method.predicates.predicates.subst(self.tcx, mth.substs);
                     if !self.normalize_and_test_predicates(predicates) {
                         debug!("get_vtable_methods: predicates do not hold");
                         return None;