Add ghstack PR detection and error message #3740
Dr.CI classification results
{"FAILED":[{"workflowId":21634377264,"workflowUniqueId":50406927,"id":62355534723,"runnerName":"i-0eeac26f3d0db8170","authorEmail":"127536312+sekyondaMeta@users.noreply.github.com","name":"Build tutorials / build / pytorch_tutorial_build_worker (2, 15, linux.g5.4xlarge.nvidia.gpu)","jobName":"build / pytorch_tutorial_build_worker (2, 15, linux.g5.4xlarge.nvidia.gpu)","conclusion":"failure","completed_at":"2026-02-03T15:13:13.000000000Z","html_url":"https://github.com/pytorch/tutorials/actions/runs/21634377264/job/62355534723","logUrl":"https://ossci-raw-job-status.s3.amazonaws.com/log/pytorch/tutorials/62355534723","head_branch":"svekars-patch-54","pr_number":3740,"head_sha":"44bf5ff8f26536546d0e59e1083301ec9ed17e0f","head_sha_timestamp":"2026-02-03T14:34:05.000000000Z","failure_captures":["RuntimeError: We found a fake tensor in the exported program constant's list. This typically means our tracing system encountered an op that we can't trace through. For the potential source, you can refer to following model attribute: lifted_tensor_1. Please file an issue on github. "],"failure_lines":["RuntimeError: We found a fake tensor in the exported program constant's list. This typically means our tracing system encountered an op that we can't trace through. For the potential source, you can refer to following model attribute: lifted_tensor_1. Please file an issue on github. "],"failure_context":[],"time":"2026-02-03T14:34:12.000000000Z"}],"FLAKY":[],"BROKEN_TRUNK":[],"UNSTABLE":[]}