diff --git a/src/queue.rs b/src/queue.rs
deleted file mode 100644
index fbb80f9..0000000
--- a/src/queue.rs
+++ /dev/null
@@ -1,7 +0,0 @@
-pub trait JobQueue {
-    type Job;
-    type Error;
-
-    fn push(job: Self::Job) -> Result<(), Self::Error>;
-    fn pop(job: Self::Job) -> Result<(), Self::Error>;
-}
diff --git a/src/worker_pool.rs b/src/worker_pool.rs
index b7245ec..a9d7d3d 100644
--- a/src/worker_pool.rs
+++ b/src/worker_pool.rs
@@ -35,7 +35,7 @@ impl WorkerThread {
     }
 
     pub fn spawn_in_pool(name: String, restarts: u64) {
-        let mut builder = thread::Builder::new().name(name.clone());
+        let builder = thread::Builder::new().name(name.clone());
 
         info!(
             "starting a worker thread {}, number of restarts {}",