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Troubleshooting & cleanup

Same failure modes as every other exercise in this repo — this one reuses the identical Kali-container/Casky-Box pattern, just with different container and evidence-file names, and no pcap tooling to worry about.

Troubleshooting

"name already in use" on docker run --name casky-fastlane

Not broken — setup already succeeded once. Either reuse the existing container (skip straight to ./verify.sh) or run ./cleanup.sh first.

"Checksum verification failed" installing Claude Code

This happens at docker build time (baked into the image) — only relevant if you're rebuilding rather than pulling from GHCR. Just re-run the build, Docker's layer cache means everything before that RUN step is skipped:

docker build -t casky-fastlane .

Commands fail with "no such file" / "no matches found"

Almost always a wrong working directory. Every command on the Setup page assumes you're in casky-workshops/fastlane/:

# Section 1 (inside the Kali container)
docker exec casky-fastlane test -f /root/fastlane/verify.sh \
  && echo "[+] mount OK" || echo "[!] wrong directory — re-run from casky-workshops/fastlane/"

# Section 2 (on the host, before copying evidence)
test -f app/rls-policies.json && echo "[+] correct folder" || echo "[!] cd to casky-workshops/fastlane first"

Invalid API key inside the Kali container

The quoted-value bug — see Section 1 prerequisites. Re-run the sed fix and confirm with grep -c '^sk-ant-' before retrying.

Casky Box itself won't start / docker compose networking errors

That's a casky-box issue, not a FastLane/SpeedBump one — see that folder's own README troubleshooting section.

Cleanup

./cleanup.sh removes everything a run of this exercise creates outside the fastlane/ folder: the casky-fastlane container and any evidence files copied into casky-box/evidence/. Safe to re-run.

./cleanup.sh                                                  # container + copied evidence
./cleanup.sh --casky-box-path ../casky-box                    # if casky-box/ was moved elsewhere
./cleanup.sh --with-image                                      # also remove the casky-fastlane image

It does not touch Casky Box's own containers (casky-runner, casky-db, casky-ui), and doesn't delete Postgres investigation records — those are history, not litter.

If the evidence files get modified mid-exercise, restore them with:

docker exec -w /root/fastlane casky-fastlane ./reset.sh

Authorized & lawful use only. All data is synthetic and self-contained; no live systems are touched.