Исправлены clippy-замечания под gate -D warnings

traffic_core/src/lock.rs

@@ -11,6 +11,7 @@ pub struct FileLock {
 }
 
 impl FileLock {
+    #[cfg(test)]
     pub fn acquire(path: &str) -> anyhow::Result<Self> {
         Self::acquire_timeout(path, Duration::from_secs(0))
     }
@@ -42,9 +43,9 @@ impl FileLock {
         match OpenOptions::new().create_new(true).write(true).open(p) {
             Ok(mut file) => {
                 file.write_all(std::process::id().to_string().as_bytes())?;
-                return Ok(Self {
+                Ok(Self {
                     path: path.to_string(),
-                });
+                })
             }
             Err(e) if e.kind() == std::io::ErrorKind::AlreadyExists => {
                 let stale = is_stale_lock(p)?;
@@ -52,13 +53,14 @@ impl FileLock {
                     let _ = fs::remove_file(p);
                     let mut file = OpenOptions::new().create_new(true).write(true).open(p)?;
                     file.write_all(std::process::id().to_string().as_bytes())?;
-                    return Ok(Self {
+                    Ok(Self {
                         path: path.to_string(),
-                    });
+                    })
+                } else {
+                    anyhow::bail!("lock already exists: {path}");
                 }
-                anyhow::bail!("lock already exists: {path}");
             }
-            Err(e) => return Err(e.into()),
+            Err(e) => Err(e.into()),
         }
     }
 }