From 24620c0a07b6f1a2b76154ce50905db837326aef Mon Sep 17 00:00:00 2001
From: Jivin <liu.jin@outlook.com>
Date: Sun, 20 Nov 2022 09:55:17 -0500
Subject: [PATCH] fix build issue 'error: non-binding let on a synchronization
 lock'

---
 libs/hbb_common/src/config.rs | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/libs/hbb_common/src/config.rs b/libs/hbb_common/src/config.rs
index ea7dd6d3..c3a502ba 100644
--- a/libs/hbb_common/src/config.rs
+++ b/libs/hbb_common/src/config.rs
@@ -693,7 +693,7 @@ const PEERS: &str = "peers";
 
 impl PeerConfig {
     pub fn load(id: &str) -> PeerConfig {
-        let _ = CONFIG.read().unwrap(); // for lock
+        let _unused = CONFIG.read().unwrap(); // for lock
         match confy::load_path(&Self::path(id)) {
             Ok(config) => config,
             Err(err) => {
@@ -704,7 +704,7 @@ impl PeerConfig {
     }
 
     pub fn store(&self, id: &str) {
-        let _ = CONFIG.read().unwrap(); // for lock
+        let _unused = CONFIG.read().unwrap(); // for lock
         if let Err(err) = confy::store_path(Self::path(id), self) {
             log::error!("Failed to store config: {}", err);
         }
@@ -845,7 +845,7 @@ pub struct LanPeers {
 
 impl LanPeers {
     pub fn load() -> LanPeers {
-        let _ = CONFIG.read().unwrap(); // for lock
+        let _unused = CONFIG.read().unwrap(); // for lock
         match confy::load_path(&Config::file_("_lan_peers")) {
             Ok(peers) => peers,
             Err(err) => {