error: required is meaningless for bool --> $DIR/bool_required.rs:14:19 | 14 | #[clap(short, required = true)] | ^^^^^^^^ error[E0277]: the trait bound `Opt: std::convert::From` is not satisfied --> $DIR/bool_required.rs:11:10 | 11 | #[derive(Clap, Debug)] | ^^^^ the trait `std::convert::From` is not implemented for `Opt`