misc: Automatically fix cargo clippy issues added in 1.65 (stable)

Signed-off-by: Rob Bradford <robert.bradford@intel.com>

net_util/src/mac.rs

@@ -125,7 +125,7 @@ impl<'de> Deserialize<'de> for MacAddr {
     {
         let s = String::deserialize(deserializer)?;
         MacAddr::parse_str(&s)
-            .map_err(|e| D::Error::custom(format!("The provided MAC address is invalid: {}", e)))
+            .map_err(|e| D::Error::custom(format!("The provided MAC address is invalid: {e}")))
     }
 }
 
@@ -161,7 +161,7 @@ mod tests {
 
         let mac = MacAddr::parse_str("12:34:56:78:9a:BC").unwrap();
 
-        println!("parsed MAC address: {}", mac);
+        println!("parsed MAC address: {mac}");
 
         let bytes = mac.get_bytes();
         assert_eq!(bytes, [0x12u8, 0x34, 0x56, 0x78, 0x9a, 0xbc]);

net_util/src/open_tap.rs

@@ -41,7 +41,7 @@ type Result<T> = std::result::Result<T, Error>;
 fn check_mq_support(if_name: &Option<&str>, queue_pairs: usize) -> Result<()> {
     if let Some(tap_name) = if_name {
         let mq = queue_pairs > 1;
-        let path = format!("/sys/class/net/{}/tun_flags", tap_name);
+        let path = format!("/sys/class/net/{tap_name}/tun_flags");
         // interface does not exist, check is not required
         if !Path::new(&path).exists() {
             return Ok(());

net_util/src/tap.rs

@@ -581,7 +581,7 @@ mod tests {
         let _tap_ip_guard = TAP_IP_LOCK.lock().unwrap();
 
         let t = Tap::new(1).unwrap();
-        println!("created tap: {:?}", t);
+        println!("created tap: {t:?}");
     }
 
     #[test]