#![allow(dead_code)]
fn foo<F: Fn()>(mut f: F) {
- f.call(()); //~ ERROR explicit use of unboxed closure method `call`
- f.call_mut(()); //~ ERROR explicit use of unboxed closure method `call_mut`
- f.call_once(()); //~ ERROR explicit use of unboxed closure method `call_once`
+ f.call(()); //~ ERROR use of unstable library feature 'fn_traits'
+ f.call_mut(()); //~ ERROR use of unstable library feature 'fn_traits'
+ f.call_once(()); //~ ERROR use of unstable library feature 'fn_traits'
}
fn main() {}