1 error[E0308]: mismatched types
2 --> $DIR/wrong-ret-type.rs:2:49
4 LL | fn mk_int() -> usize { let i: isize = 3; return i; }
5 | ----- ^ expected `usize`, found `isize`
7 | expected `usize` because of return type
9 help: you can convert an `isize` to a `usize` and panic if the converted value doesn't fit
11 LL | fn mk_int() -> usize { let i: isize = 3; return i.try_into().unwrap(); }
12 | ++++++++++++++++++++
14 error: aborting due to previous error
16 For more information about this error, try `rustc --explain E0308`.