1 error: functions with the "rust-call" ABI must take a single non-self argument that is a tuple
2 --> $DIR/overloaded-calls-nontuple.rs:11:5
4 LL | extern "rust-call" fn call_mut(&mut self, z: isize) -> isize {
5 | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
7 error: functions with the "rust-call" ABI must take a single non-self argument that is a tuple
8 --> $DIR/overloaded-calls-nontuple.rs:19:5
10 LL | extern "rust-call" fn call_once(mut self, z: isize) -> isize { self.call_mut(z) }
11 | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
13 error[E0059]: cannot use call notation; the first type parameter for the function trait is neither a tuple nor unit
14 --> $DIR/overloaded-calls-nontuple.rs:28:10
19 error: aborting due to 3 previous errors
21 For more information about this error, try `rustc --explain E0059`.