# HG changeset patch
# User Valentin Gatien-Baron <valentin.gatienbaron@gmail.com>
# Date 2020-05-17 16:28:32
# Node ID 73d6ce2746d2c093aed702e024d92675b057c48b
# Parent  526d69eeea319cff12972f620401f95975bde8e1

rust: fix warning about unnecessary mut

If there's a reason to use mut (like compability with older
compilers), then we should stick `#[allow(unused_mut)]` on the
declaration.

Differential Revision: https://phab.mercurial-scm.org/D8538

diff --git a/rust/hg-core/src/dirstate/status.rs b/rust/hg-core/src/dirstate/status.rs
--- a/rust/hg-core/src/dirstate/status.rs
+++ b/rust/hg-core/src/dirstate/status.rs
@@ -847,7 +847,7 @@ pub fn status<'a: 'c, 'b: 'c, 'c>(
     Vec<PatternFileWarning>,
 )> {
     // Needs to outlive `dir_ignore_fn` since it's captured.
-    let mut ignore_fn: IgnoreFnType;
+    let ignore_fn: IgnoreFnType;
 
     // Only involve real ignore mechanism if we're listing unknowns or ignored.
     let (dir_ignore_fn, warnings): (IgnoreFnType, _) = if options.list_ignored