Log output when tests/rust already exists
diff --git a/tests/common/mod.rs b/tests/common/mod.rs
index ff98037..91aaa61 100644
--- a/tests/common/mod.rs
+++ b/tests/common/mod.rs
@@ -110,7 +110,8 @@
 
 pub fn clone_rust() {
     if Path::new("tests/rust").is_dir() {
-        return
+        println!("found rust repo in tests/rust");
+        return;
     }
 
     println!("cloning rust-lang/rust");