error[E0599]: no method named `serialize` found for enum `FooRequest` in the current scope --> tests/compile_fail/no_serde1/no_implicit_serde_without_feature.rs:8:7 | 1 | #[tarpc::service] | ----------------- method `serialize` not found for this enum ... 8 | x.serialize(); | ^^^^^^^^^ method not found in `FooRequest` | = help: items from traits can only be used if the trait is implemented and in scope = note: the following trait defines an item `serialize`, perhaps you need to implement it: candidate #1: `serde::ser::Serialize`