diff --git a/ices/84737.sh b/ices/84737.sh
new file mode 100644
index 00000000..2cef4c18
--- /dev/null
+++ b/ices/84737.sh
@@ -0,0 +1,22 @@
+#!/bin/bash
+
+cat > Cargo.toml <<'EOF'
+[package]
+name = "abc"
+version = "0.0.1"
+edition = "2018"
+EOF
+
+mkdir -p src
+
+cat > src/test.rs <<'EOF'
+#![allow(incomplete_features)]
+#![feature(const_generics)]
+
+async fn test(test: [(); { 0 }]) {
+    let _ = &test;
+    async {}.await;
+}
+EOF
+
+cargo test