diff --git a/crates/shadowsocks-service/src/sys/mod.rs b/crates/shadowsocks-service/src/sys/mod.rs
index 7ea7782a..ebc14fb0 100644
--- a/crates/shadowsocks-service/src/sys/mod.rs
+++ b/crates/shadowsocks-service/src/sys/mod.rs
@@ -3,6 +3,7 @@ use cfg_if::cfg_if;
 cfg_if! {
     if #[cfg(unix)] {
         mod unix;
+        #[allow(unused_imports)]
         pub use self::unix::*;
     }
 
diff --git a/crates/shadowsocks-service/src/sys/unix/mod.rs b/crates/shadowsocks-service/src/sys/unix/mod.rs
index 78d1c831..14e36904 100644
--- a/crates/shadowsocks-service/src/sys/unix/mod.rs
+++ b/crates/shadowsocks-service/src/sys/unix/mod.rs
@@ -5,6 +5,7 @@ use cfg_if::cfg_if;
 cfg_if! {
     if #[cfg(target_os = "macos")] {
         mod macos;
+        #[allow(unused_imports)]
         pub use self::macos::*;
     }
 }
diff --git a/src/service/local.rs b/src/service/local.rs
index a4a5f743..a3063ec9 100644
--- a/src/service/local.rs
+++ b/src/service/local.rs
@@ -1164,6 +1164,7 @@ async fn get_online_config_servers(
 }
 
 impl ServerReloader {
+    #[cfg_attr(not(any(unix, feature = "local-online-config")), allow(dead_code))]
     async fn run_once(&self) -> Result<(), Box<dyn std::error::Error>> {
         let start_time = Instant::now();
 
@@ -1271,6 +1272,7 @@ impl ServerReloader {
     async fn launch_reload_server_task(self) {
         let arc_self = Arc::new(self);
 
+        #[allow(unused_mut)]
         let mut futs: Vec<BoxFuture<()>> = Vec::new();
 
         #[cfg(unix)]