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AI-generatederror: unused variable: `x` when lint set to deny in Cargo.toml
Goal: configure Rust compiler lints so that useful alerts about unused variables and other code quality issues are visible, while reducing irrelevant noise that can hide genuine problems. Constraints: deciding which lints to promote to error level, which to keep as warnings, and how to apply temporary overrides via cargo clippy flags or RUSTFLAGS without aff
rust