# 优化编译速度
https://www.reddit.com/r/rust/comments/rnkyc0/why_does_my_code_compile_faster_on_nightly/
https://www.reddit.com/r/rust/comments/rv8126/speedup_compilation_time/
https://www.reddit.com/r/rust/comments/rsfcgb/why_is_my_rust_build_so_slow/