Fix clippy warnings

Author: roderickvd

audio/src/decrypt.rs

@@ -18,8 +18,8 @@ pub struct AudioDecrypt<T: io::Read> {
 impl<T: io::Read> AudioDecrypt<T> {
     pub fn new(key: AudioKey, reader: T) -> AudioDecrypt<T> {
         let cipher = Aes128Ctr::new(
-            &GenericArray::from_slice(&key.0),
-            &GenericArray::from_slice(&AUDIO_AESIV),
+            GenericArray::from_slice(&key.0),
+            GenericArray::from_slice(&AUDIO_AESIV),
         );
         AudioDecrypt { cipher, reader }
     }

connect/src/spirc.rs

@@ -1033,7 +1033,7 @@ impl SpircTask {
                     .payload
                     .first()
                     .expect("Empty payload on context uri");
-                let response: serde_json::Value = serde_json::from_slice(&data).unwrap();
+                let response: serde_json::Value = serde_json::from_slice(data).unwrap();
 
                 Ok(response)
             }
@@ -1051,7 +1051,7 @@ impl SpircTask {
             if let Some(head) = track_vec.len().checked_sub(CONTEXT_TRACKS_HISTORY) {
                 track_vec.drain(0..head);
             }
-            track_vec.extend_from_slice(&new_tracks);
+            track_vec.extend_from_slice(new_tracks);
             self.state
                 .set_track(protobuf::RepeatedField::from_vec(track_vec));
 
@@ -1218,7 +1218,7 @@ impl SpircTask {
         trace!("Sending status to server: [{}]", status_string);
         let mut cs = CommandSender::new(self, MessageType::kMessageTypeNotify);
         if let Some(s) = recipient {
-            cs = cs.recipient(&s);
+            cs = cs.recipient(s);
         }
         cs.send();
     }

core/src/connection/handshake.rs

@@ -124,7 +124,7 @@ fn compute_keys(shared_secret: &[u8], packets: &[u8]) -> (Vec<u8>, Vec<u8>, Vec<
     let mut data = Vec::with_capacity(0x64);
     for i in 1..6 {
         let mut mac =
-            HmacSha1::new_from_slice(&shared_secret).expect("HMAC can take key of any size");
+            HmacSha1::new_from_slice(shared_secret).expect("HMAC can take key of any size");
         mac.update(packets);
         mac.update(&[i]);
         data.extend_from_slice(&mac.finalize().into_bytes());

metadata/src/lib.rs

@@ -126,7 +126,7 @@ pub trait Metadata: Send + Sized + 'static {
         let data = response.payload.first().expect("Empty payload");
         let msg = Self::Message::parse_from_bytes(data).unwrap();
 
-        Ok(Self::parse(&msg, &session))
+        Ok(Self::parse(&msg, session))
     }
 }
 

playback/src/audio_backend/alsa.rs

@@ -59,7 +59,7 @@ fn list_outputs() -> io::Result<()> {
     println!("Listing available Alsa outputs:");
     for t in &["pcm", "ctl", "hwdep"] {
         println!("{} devices:", t);
-        let i = match HintIter::new_str(None, &t) {
+        let i = match HintIter::new_str(None, t) {
             Ok(i) => i,
             Err(e) => {
                 return Err(io::Error::new(io::ErrorKind::Other, e));