1 files changed, 14 insertions, 0 deletions
diff --git a/tests/ui/proc-macro/auxiliary/issue-66286.rs b/tests/ui/proc-macro/auxiliary/issue-66286.rs
new file mode 100644
index 000000000..6217f1c7e
--- /dev/null
+++ b/tests/ui/proc-macro/auxiliary/issue-66286.rs
@@ -0,0 +1,14 @@
+// force-host
+// no-prefer-dynamic
+
+#![crate_type = "proc-macro"]
+
+extern crate proc_macro;
+
+use proc_macro::TokenStream;
+
+#[proc_macro_attribute]
+pub fn vec_ice(_attr: TokenStream, input: TokenStream) -> TokenStream {
+    // This redundant convert is necessary to reproduce ICE.
+    input.into_iter().collect()
+}