use --cap-lints only when deny and forbid rules are not specified

Signed-off-by: onur-ozkan <[email protected]>

Author: onur-ozkan

src/bootstrap/src/core/build_steps/check.rs

@@ -65,7 +65,10 @@ fn args(builder: &Builder<'_>) -> Vec<String> {
 
         let all_args = std::env::args().collect::<Vec<_>>();
 
-        args.extend(strings(&["--", "--cap-lints", "warn"]));
+        if deny.is_empty() && forbid.is_empty() {
+            args.extend(strings(&["--", "--cap-lints", "warn"]));
+        }
+
         args.extend(get_clippy_rules_in_order(&all_args, allow, deny, warn, forbid));
         args.extend(ignored_lints.iter().map(|lint| format!("-Aclippy::{}", lint)));
         args.extend(builder.config.free_args.clone());