error[E0277]: the trait bound `Test: FromStr` is not satisfied --> tests/ui/deserialize_from_str_missing.rs:4:7 | 4 | #[nix(from_str)] | ^^^^^^^^ the trait `FromStr` is not implemented for `Test` | = help: the following other types implement trait `FromStr`: IpAddr Ipv4Addr Ipv6Addr NonZero NonZero NonZero NonZero NonZero and $N others