1error: #[arg(default_values_t)] can be used only on Vec types 2 3 = note: see https://github.com/clap-rs/clap/blob/master/examples/derive_ref/README.md#magic-attributes 4 5 --> tests/derive_ui/default_values_t_invalid.rs:6:11 6 | 76 | #[arg(default_values_t = [1, 2, 3])] 8 | ^^^^^^^^^^^^^^^^ 9