From 9d73176978c1eece320fe7786d7f66db2bbb6838 Mon Sep 17 00:00:00 2001
From: AnthonyMikh <anthony.mikh@yandex.ru>
Date: Tue, 1 Oct 2019 00:10:23 +0300
Subject: [PATCH] Remove redundant `.iter_mut()`

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

diff --git a/src/librustc_errors/emitter.rs b/src/librustc_errors/emitter.rs
index cc71a299a73c..0e384567846e 100644
--- a/src/librustc_errors/emitter.rs
+++ b/src/librustc_errors/emitter.rs
@@ -1655,7 +1655,7 @@ impl FileWithAnnotatedLines {
                                   line_index: usize,
                                   ann: Annotation) {
 
-            for slot in file_vec.iter_mut() {
+            for slot in file_vec {
                 // Look through each of our files for the one we're adding to
                 if slot.file.name == file.name {
                     // See if we already have a line for it