{"execution_id":"0f036c0f-40e7-42b4-8859-e1bdc2431d5a","status":"failed","config_path":"pipelines/inline/0f036c0f-40e7-42b4-8859-e1bdc2431d5a.yaml","started_at":"2026-04-20T01:08:12.357328","completed_at":"2026-04-20T01:08:30.424371","duration_seconds":18.067043,"results":{"steps":[{"result":{"result":{"reason":"Dataset already exists","skipped":true,"generated":false,"output_dir":"/app/datasets/autoresearch/btcusdtp_60_ema20return_53adbfa0fe73"},"status":"completed","streaming":true,"execution_id":"8d60bd10-ae47-44c3-8d6f-7771b24fbd2e","service_execution_id":"8d60bd10-ae47-44c3-8d6f-7771b24fbd2e","pipeline_execution_id":"0f036c0f-40e7-42b4-8859-e1bdc2431d5a"},"status":"success","step_name":"01_dataset","step_type":"dataset","started_at_iso":"2026-04-20T01:08:15.861127","duration_seconds":0.048696},{"error":"Optuna optimization failed: Optimization failed: Weights must sum to 1.0, got 1.0000010000000001","status":"failed","step_name":"02_tuning","step_type":"tuning","started_at_iso":"2026-04-20T01:08:20.287170"}],"started_at":"2026-04-20T01:08:15.600012","completed_at":"2026-04-20T01:08:29.894719","pipeline_name":"ar_btc_60_28a8d676f7bf_20260420_080801","total_duration_seconds":0.048696},"error":"Pipeline failed: 1 step(s) failed: 02_tuning"}