Rust's `#[derive]` Macro Limitations and Workarounds

Rust's `#[derive]` macro, when generating implementations for traits like `Clone`, requires all generic parameters to also implement `Clone`. This limits its applicability. The article analyzes two examples showing why this restriction prevents code from compiling. The author proposes two solutions: submitting an RFC to change compiler behavior, and writing a custom macro to circumvent the limitation. The author opts for the latter, planning to implement more flexible derive macros in the `derive_more` crate or a self-created crate to address this issue.