Chosen over older editions (like 2018) for modern language features, including disjoint capture in closures, panic macro changes, cargo feature resolver v2, and an updated prelude.
Chosen over external tools as it is the official, zero-config, highly-optimized compiler driver, package manager, and dependency orchestrator for the Rust language.
Chosen over manual style guides or third-party formatters because they are officially maintained, run out-of-the-box, compile directly with the language, and catch over 700 types of common code smells and performance bugs.
Chosen over standard cargo test because it executes tests using a process-per-test model, eliminating execution bottlenecks by scheduling tests across all available CPU cores, providing up to 3x faster execution, strict test isolation (so aborts/segmentation faults in one test don't fail the entire run), and robust retry-on-failure configuration.
Chosen over Actix-web and Rocket because of its native, seamless integration with tokio and the tower middleware ecosystem. It uses standard async functions and type-safe extractors rather than Actix-web's specialized/actor-based runtimes or Rocket's heavy macros and slower compilation times.
Chosen over async-std or smol because it is the industry-standard runtime, battle-tested at scale, with an extensive ecosystem, highly-optimized I/O loop, and native integration with Axum and SQLx.
Chosen over custom parsing because it provides zero-copy compile-time serialization and deserialization, supporting JSON, YAML, TOML, and binary formats with zero runtime overhead.
Chosen over Diesel because it is a SQL-first, compile-time checked SQL toolkit that runs natively async. It allows developers to write raw SQL while macros verify query correctness against a database at compile time, avoiding the heavy compile-time type-generation and block-on-thread model of Diesel.