B4′ Sandbox Attestation — Raw Log Index

Repo: Huyen1974/tool-kiem-thu-ci (private, retained). Artifacts retained 30 days on the runs below; the canonical evidence is persisted in this KB.

Runs

Run ID	Result	Note
27247543884	run-1 (diagnostic)	strict profile: exec /usr/bin/python: operation not permitted (exit 255) → strict_started=false. startup-safe: container ran harness but crashed writing /out (PermissionError [Errno 13], host dir not writable by uid 65532) → no bundle. Surfaced 2 real defects.
27247749834	PASS (12/12)	after chmod 0777 host /out fix; canonical evidence bundle.

Artifact b4-prime-sandbox-attestation-evidence (run 27247749834) — files

• sandbox-attestation-evidence-ci-2026-06-10.json — canonical merged bundle (= reports/b4-prime-sandbox-attestation-evidence-2026-06-10.json)
• inside-startupsafe.json — raw harness output (12 probes) under startup-safe profile
• startup.txt — strict_container_exit=255 / strict_started=false / startupsafe_container_exit=0 / startupsafe_started=true
• run-strict.stderr — exec /usr/bin/python: operation not permitted
• run-startupsafe.stderr — empty (clean run)
• run-strict.stdout, run-startupsafe.stdout

Raw stderr quotes (verbatim)

• strict (run-1 & run-2): exec /usr/bin/python: operation not permitted
• startup-safe (run-1, pre-fix): PermissionError: [Errno 13] Permission denied: '/out/sandbox-attestation-inside.json'
• startup-safe (run-2, post-fix): clean; summary {"total":12,"pass":12,"fail":0,"unverified":0}

Retrieval (while retained)

gh run download 27247749834 -R Huyen1974/tool-kiem-thu-ci -n b4-prime-sandbox-attestation-evidence