This can happen if a test hung and is normally an issue with the test, rather than infra. Tenstorrent cards seem to be in use. Killing PIDs and exiting unsuccessfully.

Process completed with exit code 1.

The action 'Run demo regression tests' has timed out after 180 minutes.

Your workflow is using a version of actions/cache that is scheduled for deprecation, actions/cache@13aacd865c20de90d75de3b17ebe84f7a17d57d2. Please update your workflow to use either v3 or v4 of actions/cache to avoid interruptions. Learn more: https://github.blog/changelog/2024-12-05-notice-of-upcoming-releases-and-breaking-changes-for-github-actions/#actions-cache-v1-v2-and-actions-toolkit-cache-package-closing-down