diff --git a/monoio/src/net/tcp/listener.rs b/monoio/src/net/tcp/listener.rs
index 52b930f7..09ae6844 100644
--- a/monoio/src/net/tcp/listener.rs
+++ b/monoio/src/net/tcp/listener.rs
@@ -263,9 +263,9 @@ impl TcpListener {
         match SharedFd::new::<false>(fd) {
             Ok(shared) => {
                 #[cfg(unix)]
-                stdl.into_raw_fd();
+                let _ = stdl.into_raw_fd();
                 #[cfg(windows)]
-                stdl.into_raw_socket();
+                let _ = stdl.into_raw_socket();
                 Ok(Self::from_shared_fd(shared))
             }
             Err(e) => Err(e),
@@ -309,9 +309,9 @@ impl Drop for TcpListener {
     fn drop(&mut self) {
         let listener = self.sys_listener.take().unwrap();
         #[cfg(unix)]
-        listener.into_raw_fd();
+        let _ = listener.into_raw_fd();
         #[cfg(windows)]
-        listener.into_raw_socket();
+        let _ = listener.into_raw_socket();
     }
 }
 
diff --git a/monoio/src/net/tcp/stream.rs b/monoio/src/net/tcp/stream.rs
index c1bfb2dc..bc01ec78 100644
--- a/monoio/src/net/tcp/stream.rs
+++ b/monoio/src/net/tcp/stream.rs
@@ -221,9 +221,9 @@ impl TcpStream {
         match SharedFd::new::<false>(fd) {
             Ok(shared) => {
                 #[cfg(unix)]
-                stream.into_raw_fd();
+                let _ = stream.into_raw_fd();
                 #[cfg(windows)]
-                stream.into_raw_socket();
+                let _ = stream.into_raw_socket();
                 Ok(Self::from_shared_fd(shared))
             }
             Err(e) => Err(e),
@@ -651,8 +651,8 @@ impl Drop for StreamMeta {
     fn drop(&mut self) {
         let socket = self.socket.take().unwrap();
         #[cfg(unix)]
-        socket.into_raw_fd();
+        let _ = socket.into_raw_fd();
         #[cfg(windows)]
-        socket.into_raw_socket();
+        let _ = socket.into_raw_socket();
     }
 }
diff --git a/monoio/src/net/udp.rs b/monoio/src/net/udp.rs
index e1f9300b..96b8f9d7 100644
--- a/monoio/src/net/udp.rs
+++ b/monoio/src/net/udp.rs
@@ -100,9 +100,9 @@ impl UdpSocket {
         let socket = unsafe { socket2::Socket::from_raw_socket(self.fd.as_raw_socket()) };
         let addr = socket.peer_addr();
         #[cfg(unix)]
-        socket.into_raw_fd();
+        let _ = socket.into_raw_fd();
         #[cfg(windows)]
-        socket.into_raw_socket();
+        let _ = socket.into_raw_socket();
         addr?
             .as_socket()
             .ok_or_else(|| io::ErrorKind::InvalidInput.into())
@@ -116,9 +116,9 @@ impl UdpSocket {
         let socket = unsafe { socket2::Socket::from_raw_socket(self.fd.as_raw_socket()) };
         let addr = socket.local_addr();
         #[cfg(unix)]
-        socket.into_raw_fd();
+        let _ = socket.into_raw_fd();
         #[cfg(windows)]
-        socket.into_raw_socket();
+        let _ = socket.into_raw_socket();
         addr?
             .as_socket()
             .ok_or_else(|| io::ErrorKind::InvalidInput.into())
@@ -156,9 +156,9 @@ impl UdpSocket {
         match SharedFd::new::<false>(fd) {
             Ok(shared) => {
                 #[cfg(unix)]
-                socket.into_raw_fd();
+                let _ = socket.into_raw_fd();
                 #[cfg(windows)]
-                socket.into_raw_socket();
+                let _ = socket.into_raw_socket();
                 Ok(Self::from_shared_fd(shared))
             }
             Err(e) => Err(e),
@@ -172,13 +172,13 @@ impl UdpSocket {
         let r = {
             let socket = unsafe { socket2::Socket::from_raw_fd(self.fd.as_raw_fd()) };
             let r = socket.set_reuse_address(reuse);
-            socket.into_raw_fd();
+            let _ = socket.into_raw_fd();
             r
         };
         #[cfg(windows)]
         let r = {
             let socket = unsafe { socket2::Socket::from_raw_socket(self.fd.as_raw_socket()) };
-            socket.into_raw_socket();
+            let _ = socket.into_raw_socket();
             Ok(())
         };
         r
@@ -191,13 +191,13 @@ impl UdpSocket {
         let r = {
             let socket = unsafe { socket2::Socket::from_raw_fd(self.fd.as_raw_fd()) };
             let r = socket.set_reuse_port(reuse);
-            socket.into_raw_fd();
+            let _ = socket.into_raw_fd();
             r
         };
         #[cfg(windows)]
         let r = {
             let socket = unsafe { socket2::Socket::from_raw_socket(self.fd.as_raw_socket()) };
-            socket.into_raw_socket();
+            let _ = socket.into_raw_socket();
             Ok(())
         };
         r
diff --git a/monoio/src/net/unix/datagram/mod.rs b/monoio/src/net/unix/datagram/mod.rs
index b31bf6ee..c0e27685 100644
--- a/monoio/src/net/unix/datagram/mod.rs
+++ b/monoio/src/net/unix/datagram/mod.rs
@@ -74,7 +74,7 @@ impl UnixDatagram {
     pub fn from_std(datagram: StdUnixDatagram) -> io::Result<Self> {
         match SharedFd::new::<false>(datagram.as_raw_fd()) {
             Ok(shared) => {
-                datagram.into_raw_fd();
+                let _ = datagram.into_raw_fd();
                 Ok(Self::from_shared_fd(shared))
             }
             Err(e) => Err(e),
diff --git a/monoio/src/net/unix/listener.rs b/monoio/src/net/unix/listener.rs
index 04fa114d..fba686bb 100644
--- a/monoio/src/net/unix/listener.rs
+++ b/monoio/src/net/unix/listener.rs
@@ -176,7 +176,7 @@ impl IntoRawFd for UnixListener {
         };
         std::mem::swap(&mut this.fd, &mut fd);
         std::mem::swap(&mut this.sys_listener, &mut sys_listener);
-        sys_listener.take().unwrap().into_raw_fd();
+        let _ = sys_listener.take().unwrap().into_raw_fd();
 
         fd.try_unwrap()
             .expect("unexpected multiple reference to rawfd")
@@ -193,6 +193,6 @@ impl AsRawFd for UnixListener {
 impl Drop for UnixListener {
     #[inline]
     fn drop(&mut self) {
-        self.sys_listener.take().unwrap().into_raw_fd();
+        let _ = self.sys_listener.take().unwrap().into_raw_fd();
     }
 }
diff --git a/monoio/src/net/unix/stream.rs b/monoio/src/net/unix/stream.rs
index 830ec6bc..74f07ef2 100644
--- a/monoio/src/net/unix/stream.rs
+++ b/monoio/src/net/unix/stream.rs
@@ -88,7 +88,7 @@ impl UnixStream {
     pub fn from_std(stream: std::os::unix::net::UnixStream) -> io::Result<Self> {
         match SharedFd::new::<false>(stream.as_raw_fd()) {
             Ok(shared) => {
-                stream.into_raw_fd();
+                let _ = stream.into_raw_fd();
                 Ok(Self::from_shared_fd(shared))
             }
             Err(e) => Err(e),