From 840edb2c4f8fe4f74999c1a311461f86fae7cbae Mon Sep 17 00:00:00 2001
From: topecongiro <seuchida@gmail.com>
Date: Fri, 11 Aug 2017 17:54:38 +0900
Subject: [PATCH] Remove 'mut' notation

---
 src/lib.rs    | 4 ++--
 src/macros.rs | 2 +-
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/src/lib.rs b/src/lib.rs
index 555aa66671a..d5d2db33fc5 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -535,7 +535,7 @@ impl fmt::Display for FormatReport {
 // Formatting which depends on the AST.
 fn format_ast<F>(
     krate: &ast::Crate,
-    mut parse_session: &mut ParseSess,
+    parse_session: &mut ParseSess,
     main_file: &Path,
     config: &Config,
     codemap: &Rc<CodeMap>,
@@ -796,7 +796,7 @@ pub enum Input {
 }
 
 pub fn run(input: Input, config: &Config) -> Summary {
-    let mut out = &mut stdout();
+    let out = &mut stdout();
     output_header(out, config.write_mode()).ok();
     match format_input(input, config, Some(out)) {
         Ok((summary, _, report)) => {
diff --git a/src/macros.rs b/src/macros.rs
index 989aaaaa58c..ae2a16510b8 100644
--- a/src/macros.rs
+++ b/src/macros.rs
@@ -68,7 +68,7 @@ pub fn rewrite_macro(
     shape: Shape,
     position: MacroPosition,
 ) -> Option<String> {
-    let mut context = &mut context.clone();
+    let context = &mut context.clone();
     context.inside_macro = true;
     if context.config.use_try_shorthand() {
         if let Some(expr) = convert_try_mac(mac, context) {