[CI Failure Doctor] 🏥 CI Failure Investigation - Run #32553

[github-actions]

Summary

The fuzz job now terminates immediately because the first fuzz target hits Go's context deadline and go test exits 1, so the rest of the suite never runs.

Failure Details

• Run: https://github.com/githubnext/gh-aw/actions/runs/21477790426
• Commit: 699243f
• Trigger: push

Root Cause Analysis

go test -run '^$' -fuzz=FuzzParseFrontmatter -fuzztime=10s ./pkg/parser/ exits with context deadline exceeded after ~11 seconds, and because the job uses set -o pipefail the non-zero status immediately fails the entire fuzz workflow. That context timeout is expected when the fuzz target hits the configured time limit, but the command currently propagates the error instead of being treated as a successful timeout.

Failed Jobs and Errors

• fuzz: first command FuzzParseFrontmatter logs context deadline exceeded and exit status 1, halting the job before any other targets run.

Investigation Findings

• Baseline coverage completes (45/45 completed) and the fuzz run begins, but the log shows fuzz: elapsed: 11s followed immediately by context deadline exceeded.
• The go test invocations are running sequentially with -fuzztime=10s, so each one is supposed to return success when the time window expires, yet Go now reports the deadline as an error that flows through due to the job’s set -o pipefail guard.
• There is no evidence of tooling bugs or crashes; the failure is purely due to hitting the configured timeout while fuzzing.

Recommended Actions

• Wrap each go test -fuzz command so that a context deadline exceeded exit is treated as an expected success (or otherwise neutralize the non-zero exit) before allowing the pipeline to continue to the next target.
• Investigate whether increasing -fuzztime (or tuning the baseline coverage steps) keeps the run short enough that Go no longer cancels the context, and adjust the job documentation so engineers know the timeout behavior changed in Go 1.25.

Prevention Strategies

Document the expectation that fuzz targets will exit with context deadline exceeded when they reach their configured run time and add a wrapper script that recognizes that message before applying set -o pipefail, ensuring a single target timing out can’t block all targets.

AI Team Self-Improvement

When running Go fuzz targets, wrap the commands so that hitting context deadline exceeded is treated as a success; otherwise, the CI job will fail every time the fuzz timer expires.

Historical Context

No prior investigations in /tmp/memory/investigations match this pattern, so this appears to be the first time the fuzz job has failed solely because a target timed out.

AI generated by CI Failure Doctor

To add this workflow in your repository, run gh aw add githubnext/agentics/workflows/ci-doctor.md@ea350161ad5dcc9624cf510f134c6a9e39a6f94d. See usage guide.