rename varname for debug string

src/main.rs

@@ -22,11 +22,11 @@ fn process(error_handles: [mpsc::Receiver<Box<dyn std::error::Error>>; 4]) -> Re
 fn main() {
     let error_handles = match init() {
         Ok(x) => x,
-        Err(x) => {dbg!(x); exit(1);}
+        Err(err) => {dbg!(err); exit(1);}
     };
     match process(error_handles) {
         Ok(_) => (),
-        Err(x) => {dbg!(x); exit(1)}
+        Err(err) => {dbg!(err); exit(1)}
     };
     exit(0);
 }