1 files changed, 13 insertions, 0 deletions

diff --git a/src/test/ui/issues/issue-23024.rs b/src/test/ui/issues/issue-23024.rs
new file mode 100644
index 000000000..e92273bd4
--- /dev/null
+++ b/src/test/ui/issues/issue-23024.rs
@@ -0,0 +1,13 @@
+#![feature(box_syntax)]
+use std::any::Any;
+
+fn main()
+{
+    fn h(x:i32) -> i32 {3*x}
+    let mut vfnfer:Vec<Box<dyn Any>> = vec![];
+    vfnfer.push(box h);
+    println!("{:?}",(vfnfer[0] as dyn Fn)(3));
+    //~^ ERROR the precise format of `Fn`-family traits'
+    //~| ERROR missing generics for trait `Fn`
+    //~| ERROR the value of the associated type `Output` (from trait `FnOnce`)
+}