ci: Fail QNS run on Rust panic (#1976)

* ci: Fail QNS run on Rust panic

So we hopefully catch interop panics in CI earlier.

* Fix condition

* check logs

* where

* Again

* Again

* Again

* Done

* if: always()

---------

Signed-off-by: Lars Eggert <lars@eggert.org>

.github/actions/quic-interop-runner/action.yml

@@ -72,6 +72,15 @@ runs:
  # Don't fail CI if the interop test fails
  set -o pipefail
  python -u run.py $ARGS 2>&1 | tee ../summary.txt || true
+ # But do fail if any log contains 'RUST_BACKTRACE=full', which indicates a panic
+ # (that we assume happened in neqo.)
+ for log in ../logs/*/*/output.txt; do
+ if grep -q 'RUST_BACKTRACE=full' "$log"; then
+ echo "Panic detected in $log"
+ tail -n 50 "$log"
+ exit 1
+ fi
+ done
  shell: bash
 
  - uses: actions/upload-artifact@0b2256b8c012f0828dc542b3febcab082c67f72b # v4.3.4

.github/workflows/qns.yml

@@ -157,6 +157,7 @@ jobs:
  name: Report results
  needs: run-qns
  runs-on: ubuntu-latest
+ if: always()
  steps:
  - uses: actions/checkout@692973e3d937129bcbf40652eb9f2f61becf3332 # v4.1.7
  - uses: actions/download-artifact@fa0a91b85d4f404e444e00e005971372dc801d16 # v4.1.8