How to debug race conditions in production Rust?

Race conditions are notoriously difficult because they depend on execution timing and scheduling. Use MIRI with cargo miri test for undefined behavior detection, add logging at critical sections with tracing::instrument, use the -Zsanitizer=thread flag (nightly) to catch data races at runtime, and consider migrating shared state from Mutex<T> to RwLock<T> or DashMap if read-heavy.