- libarena
- librustc_allocator
- librustc_borrowck
- librustc_codegen_ssa
- librustc_codegen_utils
- librustc_driver
- librustc_errors
- librustc_incremental
- librustc_metadata
- librustc_passes
- librustc_privacy
- librustc_resolve
- librustc_save_analysis
- librustc_target
- librustc_traits
- libsyntax
- libsyntax_ext
- libsyntax_pos