From e04081ac4a217a93f79aa024335d0839e80908de Mon Sep 17 00:00:00 2001
From: Bill Thiede <git@xinu.tv>
Date: Sat, 26 Dec 2020 08:24:49 -0800
Subject: [PATCH] Day 22 lint cleanup.

---
 2020/src/day22.rs | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/2020/src/day22.rs b/2020/src/day22.rs
index 533b615..ed61ba1 100644
--- a/2020/src/day22.rs
+++ b/2020/src/day22.rs
@@ -410,6 +410,9 @@ impl Players {
     fn play_recursive(&mut self, game: usize, parent_game: usize) -> bool {
         debug_println!("=== Game {} ===\n", game);
         let mut round = 0;
+        // For debug builds only.
+        let _ = round;
+        let _ = parent_game;
         let mut previous_rounds = HashSet::new();
         while !self.p1.is_empty() && !self.p2.is_empty() {
             let p1s = deck_to_str(&self.p1);