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-rw-r--r--compiler/rustc_ast_pretty/src/pp.rs2
1 files changed, 1 insertions, 1 deletions
diff --git a/compiler/rustc_ast_pretty/src/pp.rs b/compiler/rustc_ast_pretty/src/pp.rs
index c93022308a3..7ab8c3eaba2 100644
--- a/compiler/rustc_ast_pretty/src/pp.rs
+++ b/compiler/rustc_ast_pretty/src/pp.rs
@@ -360,7 +360,7 @@ impl Printer {
 
     fn check_stack(&mut self, mut depth: usize) {
         while let Some(&index) = self.scan_stack.back() {
-            let mut entry = &mut self.buf[index];
+            let entry = &mut self.buf[index];
             match entry.token {
                 Token::Begin(_) => {
                     if depth == 0 {