From 2a9750ada4c067ecadbe46f190f70095a86fd616 Mon Sep 17 00:00:00 2001
From: Josh Stone <cuviper@gmail.com>
Date: Thu, 21 Sep 2017 17:28:37 -0700
Subject: [PATCH] bigint: remove an unused mut

---
 bigint/src/bigint.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/bigint/src/bigint.rs b/bigint/src/bigint.rs
index bae78d7..a4505b1 100644
--- a/bigint/src/bigint.rs
+++ b/bigint/src/bigint.rs
@@ -1757,7 +1757,7 @@ fn twos_complement<'a, I>(digits: I)
     where I: IntoIterator<Item = &'a mut u8>
 {
     let mut carry = true;
-    for mut d in digits {
+    for d in digits {
         *d = d.not();
         if carry {
             *d = d.wrapping_add(1);