| error: mismatched signatures | |
| --> $DIR/rpit.rs:14:5 | |
| | | |
| LL | become foo(x, y); | |
| | ^^^^^^^^^^^^^^^^ | |
| | | |
| = note: `become` requires caller and callee to have matching signatures | |
| = note: caller signature: `fn(u32, u32) -> impl ToString` | |
| = note: callee signature: `fn(u32, u32) -> u32` | |
| error: aborting due to 1 previous error | |