1 files changed, 9 insertions, 0 deletions
diff --git a/src/test/ui/feature-gates/feature-gate-unboxed-closures-ufcs-calls.rs b/src/test/ui/feature-gates/feature-gate-unboxed-closures-ufcs-calls.rs
new file mode 100644
index 000000000..25c90492e
--- /dev/null
+++ b/src/test/ui/feature-gates/feature-gate-unboxed-closures-ufcs-calls.rs
@@ -0,0 +1,9 @@
+#![allow(dead_code)]
+
+fn foo<F: Fn()>(mut f: F) {
+    Fn::call(&f, ()); //~ ERROR use of unstable library feature 'fn_traits'
+    FnMut::call_mut(&mut f, ()); //~ ERROR use of unstable library feature 'fn_traits'
+    FnOnce::call_once(f, ()); //~ ERROR use of unstable library feature 'fn_traits'
+}
+
+fn main() {}