1 files changed, 2 insertions, 2 deletions

diff --git a/xtask/tests/tidy-tests/main.rs b/xtask/tests/tidy-tests/main.rs
index 4f525fcd0..e5247854a 100644
--- a/xtask/tests/tidy-tests/main.rs
+++ b/xtask/tests/tidy-tests/main.rs
@@ -46,9 +46,9 @@ fn check_trailing_ws(path: &Path, text: &str) {
     if is_exclude_dir(path, &["test_data"]) {
         return;
     }
-    for line in text.lines() {
+    for (line_number, line) in text.lines().enumerate() {
         if line.chars().last().map(char::is_whitespace) == Some(true) {
-            panic!("Trailing whitespace in {}", path.display())
+            panic!("Trailing whitespace in {} at line {}", path.display(), line_number)
         }
     }
 }