fixup! [build] remove edition 2024 stuff

Cargo.toml

@@ -1,8 +1,7 @@
 [package]
 name = "linkspeed"
 version = "0.1.0"
-edition = "2024"
-rust-version = "1.85"
+edition = "2018"
 
 [dependencies]
 

rust-toolchain.toml

@@ -1,2 +0,0 @@
-[toolchain]
-channel = "nightly"

src/main.rs

@@ -68,18 +68,25 @@ impl LinkSpeed {
     }
 }
 
+impl Iterator for LinkSpeed {
+    type Item = (f64, f64);
+
+    fn next(&mut self) -> Option<Self::Item> {
+        Some(self.get_measurement())
+    }
+}
+
 fn main() {
     let netdev_name = env::args().nth(1).expect("No network device provided");
 
-    let mut link_speed = LinkSpeed::new(netdev_name).expect("Failed to create LinkSpeed object");
+    let link_speed = LinkSpeed::new(netdev_name).expect("Failed to create LinkSpeed object");
 
-    loop {
-        let (rx_speed, tx_speed) = link_speed.get_measurement();
+    link_speed.for_each(|(rx_speed, tx_speed)| {
         println!(
             "RX: {:.0} MBit/s, TX: {:.0} MBit/s",
             rx_speed / 1024.0 / 1024.0 * 8.0,
             tx_speed / 1024.0 / 1024.0 * 8.0
         );
         sleep(Duration::from_millis(1000));
-    }
+    });
 }