fix parameters applying lint

Author: buttercrab

tests/ui/crate_level_checks/no_std_main_recursion.rs

@@ -12,12 +12,12 @@ static N: AtomicUsize = AtomicUsize::new(0);
 
 #[warn(clippy::main_recursion)]
 #[start]
-fn main(argc: isize, argv: *const *const u8) -> isize {
+fn main(_argc: isize, _argv: *const *const u8) -> isize {
     let x = N.load(Ordering::Relaxed);
     N.store(x + 1, Ordering::Relaxed);
 
     if x < 3 {
-        main(argc, argv);
+        main(_argc, _argv);
     }
 
     0