//@ normalize-stderr-test: "long-type-\d+" -> "long-type-hash" fn id( f: &dyn Fn(u32), ) -> &dyn Fn( &dyn Fn( &dyn Fn( &dyn Fn(&dyn Fn(&dyn Fn(&dyn Fn(&dyn Fn(&dyn Fn(&dyn Fn(&dyn Fn(&dyn Fn(u32))))))))), ), ), ) { f //~^ ERROR mismatched types } fn main() {}