Rust has tools for package management (Cargo), documentation (rustdoc), linting (clippy), testing (the built-in test runner), and debugging (gdb and lldb integration).

It also has tools for code completion (Racer), build orchestration (Cargo again), benchmarking (the built-in benchmark runner), compiler version management (multirust), and automatic source code formatting (rustfmt, though this one's a WIP).