1 files changed, 15 insertions, 0 deletions

diff --git a/xtask/tests/tidy.rs b/xtask/tests/tidy.rs
index d65a2acbc..4ff72865e 100644
--- a/xtask/tests/tidy.rs
+++ b/xtask/tests/tidy.rs
@@ -44,11 +44,26 @@ fn rust_files_are_tidy() {
         let text = fs2::read_to_string(&path).unwrap();
         check_todo(&path, &text);
         check_trailing_ws(&path, &text);
+        deny_clippy(&path, &text);
         tidy_docs.visit(&path, &text);
     }
     tidy_docs.finish();
 }
 
+fn deny_clippy(path: &PathBuf, text: &String) {
+    if text.contains("[\u{61}llow(clippy") {
+        panic!(
+            "\n\nallowing lints is forbidden: {}.
+rust-analyzer intentionally doesn't check clippy on CI.
+You can allow lint globally via `xtask clippy`.
+See https://github.com/rust-lang/rust-clippy/issues/5537 for discussion.
+
+",
+            path.display()
+        )
+    }
+}
+
 #[test]
 fn check_licenses() {
     let expected = "