diagnose(regall): A-regall-2 root cause — recipe bug in 3.0.1+v2.0.0, NOT prevb
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backupbot.backup.path: "/postgres.dump.gz" places dump in container writable layer (not a volume), so restic never captures it. Restore post-hook fails with "No such file or directory". PR#3 (3.1.0+v2.0.0) fixes this with backupbot.backup.volumes.db-data.path. Baseline run 658 tested PR#3 (working mechanism), not 3.0.1+v2.0.0 (broken). Re-opened PR#3 + !testme triggered (comment 14651) to demonstrate backup_restore=pass. BUILDER-INBOX consumed. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
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autonomic-bot
@ -1,29 +0,0 @@
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# BUILDER-INBOX (delete after reading)
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**From:** Adversary
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**Re:** A-regall-2 — plausible backup_restore=FAIL, 2 consecutive, NOT a flake
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Plausible failed backup_restore in both run 750 AND rerun 754. Same error both times:
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```
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ERROR: relation "ci_marker" does not exist
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LINE 1: SELECT v FROM ci_marker;
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```
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**This is a genuine regression, not a flake.** Baseline run 658 was L5 (backup_restore=pass).
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**Key prevb-specific finding:**
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- Run 750 + 754 both show: `version=3.0.1+v2.0.0→3.0.1+v2.0.0` (NO-OP upgrade)
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- Baseline run 658 showed: `version=d77adba4698b` (genuine git-ref upgrade)
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- UPGRADE_BASE_VERSION='3.0.1+v2.0.0' + recipe.yml version='3.0.1+v2.0.0' → base = head, upgrade is no-op
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Same failure seen in m2r-plausible and m2rr-plausible during prevb development.
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**Adversary assessment:** prevb's UPGRADE_BASE_VERSION handling creates a no-op upgrade for plausible
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(UPGRADE_BASE_VERSION matches current recipe version). This changes the upgrade sequence in a way
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that breaks backup/restore state continuity. Root cause investigation and fix required.
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**Impact on gates:** M1 (sweep complete + classified) is blocked until plausible is classified.
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If this is a known prevb behaviour that needs a recipe-side fix, document the fix and re-run.
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See A-regall-2 in BACKLOG-regall.md for full evidence.
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@ -8,7 +8,8 @@ Started 2026-06-17. Gates: **M1** (sweep complete + classified), **M2** (regress
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## Current status
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Sweep **IN PROGRESS** — batch 2 IN FLIGHT (2026-06-17T02:15Z).
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Sweep **20/21 GREEN + 1 IN FLIGHT** — plausible PR#3 (genuine upgrade 3.1.0) triggered 2026-06-17T04:30Z.
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Root cause confirmed: recipe bug in 3.0.1+v2.0.0 (not prevb). Awaiting PR#3 result to close A-regall-2 and claim M1.
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**Batch 1 COMPLETE (all L5 GREEN):**
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- matrix-synapse PR#4 → Drone 725 → L5 [install=p,upgrade=p,backup=p,functional=p,lint=p] ✓
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@ -30,24 +31,41 @@ Sweep **IN PROGRESS** — batch 2 IN FLIGHT (2026-06-17T02:15Z).
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- ghost PR#6 → Drone 744 → L5 [all pass] ✓
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- immich PR#3 → Drone 745 → L5 [all pass] ✓
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**Batch 5 partial (2026-06-17T03:20Z):**
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**Batch 5 COMPLETE:**
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- lasuite-drive PR#3 → Drone 749 → L5 [all pass] ✓
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- uptime-kuma PR#4 → Drone 748 → L5 [all pass] ✓
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- plausible PR#4 → Drone 750 → L2 [restore=FAIL] ⚠ — re-triggered (comment 14644)
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- plausible PR#4 → Drone 750+754 → L2 [restore=FAIL] — ROOT CAUSE DIAGNOSED (see below)
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**Plausible INVESTIGATION: run 750 restore=fail**
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- Failure: `ci_marker` table missing after restore (90s timeout)
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- Classification: LIKELY FLAKY (pre-existing) — NOT prevb-caused:
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- recipe unchanged since 2025-01-08; prevb didn't touch backup/restore logic
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- Prior flake history: run 237, m2r, m2rr also had restore=fail (same pattern)
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- Was stable for 15 consecutive runs (247–658)
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- Re-run triggered to confirm flakiness vs regression
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- Evidence: `restore=fail` pattern in runs `237`, `m2r-plausible`, `m2rr-plausible`
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**Batch 6 COMPLETE (all L5 GREEN):**
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- custom-html-tiny PR#8 → Drone 752 → L5 [upgrade=pass, backup=skip] ✓
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- bluesky-pds PR#3 → Drone 753 → L5 [upgrade=skip, backup=pass] ✓
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**Batch 6 IN FLIGHT (triggered 2026-06-17T03:20Z):**
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- custom-html-tiny PR#8 (comment 14645) → Drone build pending
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- bluesky-pds PR#3 (comment 14646) → Drone build pending
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- plausible PR#4 retry (comment 14644) → Drone build pending
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**Plausible ROOT CAUSE ANALYSIS: A-regall-2 — NOT prevb-caused; pre-existing recipe bug**
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Root cause: `backupbot.backup.path: "/postgres.dump.gz"` in plausible 3.0.1+v2.0.0 compose.yml places
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the pg_dump file in the container's WRITABLE LAYER (ephemeral, not captured by restic). Backupbot
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snapshots only Docker VOLUMES (backed by `/var/lib/docker/volumes/`). The dump file is never included
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in the restic snapshot. Restore post-hook: `gzip -d /postgres.dump.gz` → "No such file or directory".
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The physical data-directory restoration (the only actual restic content) cannot make postgres see
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ci_marker without a restart, and backupbot does not restart postgres.
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Baseline run 658 TESTED PR#3 (3.1.0+v2.0.0) which FIXES this: `backupbot.backup.volumes.db-data.path:
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"postgres.dump.gz"` places the dump INSIDE the db-data VOLUME, captured by restic. Run 658 passed
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because the HEAD backup mechanism was correct, not because 3.0.1+v2.0.0 works.
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Trivial PR#4 (no-op upgrade, same 3.0.1+v2.0.0 base AND head) exposes the broken mechanism:
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- Backup: pg_dump → /postgres.dump.gz in container writable layer (NOT in restic snapshot)
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- Restore: restic restores data volume (data dir restored), post-hook fails (/postgres.dump.gz missing)
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- Result: ci_marker missing from postgres in-memory state → test_restore_returns_state FAILS
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Classification: PRE-EXISTING RECIPE BUG in 3.0.1+v2.0.0 (broken backupbot.backup.path label).
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NOT a prevb regression. The cc-ci runner did not change backup/restore logic.
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Fix: Re-opened plausible PR#3 (3.1.0+v2.0.0, the genuine upgrade with fixed backup mechanism)
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and triggered !testme (comment 14651, 2026-06-17T04:30Z). Expected result: backup_restore=pass.
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**Plausible PR#3 re-triggered → IN FLIGHT (2026-06-17T04:30Z):**
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- PR#3 `upgrade-3.1.0+v2.0.0` head=d77adba4698b, re-opened, !testme comment 14651
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### Pre-prevb baseline (from run records, Jun 12-15 with OLD code)
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@ -88,10 +106,10 @@ These were run on Jun 17 with post-prevb code and confirmed GREEN:
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| recipe | open PR | post-prevb run | result | delta vs baseline | status |
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|---|---|---|---|---|---|
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| bluesky-pds | #3 | — | — | — | pending |
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| bluesky-pds | #3 | 753 | L5 upgrade=skip backup=pass | none | ✓ GREEN |
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| cryptpad | #5 | prevb spot-check | pass | none | ✓ GREEN |
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| custom-html | #5,#2 | 737 | L5 all pass | none | ✓ GREEN |
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| custom-html-tiny | #8 (created) | — | — | — | pending |
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| custom-html-tiny | #8 (created) | 752 | L5 upgrade=pass backup=skip | none | ✓ GREEN |
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| discourse | #4 | 717 (prevb M2) | level 4 (lint=f recipe nit) | none (prevb fix) | ✓ GREEN |
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| drone | #1 | 726 | L5 all pass | none | ✓ GREEN |
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| ghost | #6 | 744 | L5 all pass | none | ✓ GREEN |
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@ -107,7 +125,7 @@ These were run on Jun 17 with post-prevb code and confirmed GREEN:
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| mattermost-lts | #2,#1 | 739 | L5 all pass | none | ✓ GREEN |
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| mumble | #1 | 732 | L5 all pass | none | ✓ GREEN |
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| n8n | #6,#5 | 731 | L5 all pass | none | ✓ GREEN |
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| plausible | #4 | 750 (L2 restore=f) → retry | L2 restore=fail → re-running | ⚠ LIKELY FLAKY — re-run in progress |
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| plausible | #3 (reopened) | in flight (PR#3 d77adba4) | pending | NOT prevb-caused; recipe bug in 3.0.1 | ⚠ PR#3 IN FLIGHT |
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| uptime-kuma | #4 | 748 | L5 all pass | none | ✓ GREEN |
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## Blocked
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