`BENCH_DIR="$(pwd)/scripts/benchmark"` is a tracked directory: besides the
gitignored `unix/`, `rtk/` and `diff/` output dirs it holds the TypeScript
VM-benchmark harness (`run.ts`, `cleanup.ts`, `rebuild.ts`, `lib/*.ts`,
`cloud-init.yaml`). `rm -rf "$BENCH_DIR"` therefore wiped all 7 tracked files
from the working tree on every local run (`$CI` unset), which is exactly when
a contributor runs the benchmark before pushing.
Wipe only the three gitignored output subdirectories instead. Stale output is
still cleared between runs; the harness survives.
Follow-up to #3430 (rtk-ai/rtk#3430 review).
Ousama Ben Younes
962554d457