| error: structopt only supports non-tuple structs and enums | |
| --> $DIR/tuple_struct.rs:11:10 | |
| | | |
| 11 | #[derive(StructOpt, Debug)] | |
| | ^^^^^^^^^ | |
| | | |
| = note: this error originates in the derive macro `StructOpt` (in Nightly builds, run with -Z macro-backtrace for more info) |