| error[E0308]: mismatched types | |
| --> $DIR/tail-typeck.rs:3:26 | |
| | | |
| LL | fn f() -> isize { return g(); } | |
| | ----- ^^^ expected `isize`, found `usize` | |
| | | | |
| | expected `isize` because of return type | |
| | | |
| help: you can convert a `usize` to an `isize` and panic if the converted value doesn't fit | |
| | | |
| LL | fn f() -> isize { return g().try_into().unwrap(); } | |
| | ^^^^^^^^^^^^^^^^^^^^^^^ | |
| error: aborting due to previous error | |
| For more information about this error, try `rustc --explain E0308`. |