style/(src): make clippy suggested changes

Signed-off-by: Joseph Livesey <[email protected]>

src/engine.rs

@@ -57,7 +57,7 @@ impl DevmodeService {
 
     #[allow(clippy::ptr_arg)]
     fn get_block(&mut self, block_id: &BlockId) -> Block {
-        debug!("Getting block {}", to_hex(&block_id));
+        debug!("Getting block {}", to_hex(block_id));
         self.service
             .get_blocks(vec![block_id.clone()])
             .expect("Failed to get block")
@@ -164,7 +164,7 @@ impl DevmodeService {
     #[allow(clippy::ptr_arg)]
     fn send_block_ack(&mut self, sender_id: &PeerId, block_id: BlockId) {
         self.service
-            .send_to(&sender_id, "ack", block_id)
+            .send_to(sender_id, "ack", block_id)
             .expect("Failed to send block ack");
     }
 

src/main.rs

@@ -53,13 +53,12 @@ fn main() {
 
     let no_forks: bool = matches.is_present("no_forks");
 
-    let console_log_level;
-    match matches.occurrences_of("verbose") {
-        0 => console_log_level = LogLevelFilter::Warn,
-        1 => console_log_level = LogLevelFilter::Info,
-        2 => console_log_level = LogLevelFilter::Debug,
-        _ => console_log_level = LogLevelFilter::Trace,
-    }
+    let console_log_level = match matches.occurrences_of("verbose") {
+        0 => LogLevelFilter::Warn,
+        1 => LogLevelFilter::Info,
+        2 => LogLevelFilter::Debug,
+        _ => LogLevelFilter::Trace,
+    };
 
     let stdout = ConsoleAppender::builder()
         .encoder(Box::new(PatternEncoder::new(