Part of
src/cmds/— see also docs/contributing/TECHNICAL.md
cargo_cmd.rsusesrestore_double_dash()fix: Clap strips--but cargo needs it for test flags (e.g.,cargo test -- --nocapture)runner.rsis a generic two-mode runner (err= stderr only,test= failures only) used as fallback for commands without a dedicated filterrunner.rsis also referenced by other modules outside this directory as a generic command executor