1 error[E0282]: type annotations needed for `Result<Child, F>`
2 --> $DIR/or_else-multiple-type-params.rs:7:18
7 help: try giving this closure an explicit return type
9 LL | .or_else(|err| -> Result<Child, F> {
12 error: aborting due to previous error
14 For more information about this error, try `rustc --explain E0282`.