fixed type error, yay!

src/bin/main.rs

@@ -19,7 +19,7 @@ fn main() {
         let stream = stream.unwrap();
         let counter = Arc::clone(&counter);
 
-        tasks.queue(move || {
+        tasks.run(move || {
             {
                 // in a subscope to release borrow automatically
                 let mut count = counter.lock().unwrap();

src/lib.rs

@@ -12,7 +12,7 @@ impl<F: FnOnce()> FnBox for F {
     }
 }
 
-type Job = Box<dyn FnOnce() + Send + 'static>;
+type Job = Box<dyn FnBox + Send + 'static>;
 
 struct Worker {
     id: usize,