{"record":{"id":"9ee3ad9d777b83cf","repo":"Hmbown/CodeWhale","slug":"lane-proxy-stderr-logger-panicked","errorCode":null,"errorMessage":"lane proxy stderr logger panicked","messagePattern":"lane proxy stderr logger panicked","errorType":"exception","errorClass":null,"httpStatus":null,"severity":"error","filePath":"crates/lane/src/runtime.rs","lineNumber":506,"sourceCode":"    let stderr_log = log_path.clone();\n    let stdout_thread = thread::spawn(move || stream_child_output(stdout, stdout_log, \"stdout\"));\n    let stderr_thread = thread::spawn(move || stream_child_output(stderr, stderr_log, \"stderr\"));\n\n    let status = match child.wait() {\n        Ok(status) => status,\n        Err(error) => {\n            return fail(\n                anyhow::Error::from(error).context(format!(\"wait for lane child {command:?}\")),\n                LANE_PROXY_FAILURE_EXIT_CODE,\n            );\n        }\n    };\n    let stdout_result = stdout_thread\n        .join()\n        .map_err(|_| anyhow::anyhow!(\"lane proxy stdout logger panicked\"))?;\n    let stderr_result = stderr_thread\n        .join()\n        .map_err(|_| anyhow::anyhow!(\"lane proxy stderr logger panicked\"))?;\n    let mut exit_code = exit_status_code(status);\n    if let Some(error) = stdout_result.err().or_else(|| stderr_result.err()) {\n        append_proxy_failure(&log_path, &lane_id, &error)?;\n        exit_code = LANE_PROXY_FAILURE_EXIT_CODE;\n    }\n    write_lane_exit_receipt(&receipt_path, &receipt_tmp_path, &lane_id, exit_code)?;\n    Ok(exit_code)\n}\n\nfn read_lane_exit_receipt(log_path: &Path, lane_id: &str) -> Result<Option<LaneExitReceipt>> {\n    let path = lane_exit_receipt_path(log_path);\n    let metadata = match std::fs::metadata(&path) {\n        Ok(metadata) => metadata,\n        Err(err) if err.kind() == std::io::ErrorKind::NotFound => return Ok(None),\n        Err(err) => return Err(err).with_context(|| format!(\"stat {}\", path.display())),\n    };\n    if metadata.len() > MAX_EXIT_RECEIPT_BYTES {\n        bail!(","sourceCodeStart":488,"sourceCodeEnd":524,"githubUrl":"https://github.com/Hmbown/CodeWhale/blob/8880682c63083a91624de936797efa3ce9e498fd/crates/lane/src/runtime.rs#L488-L524","documentation":"Error \"lane proxy stderr logger panicked\" thrown in Hmbown/CodeWhale.","triggerScenarios":"Thrown at crates/lane/src/runtime.rs:506 when the library encounters an invalid state.","commonSituations":"See trigger scenarios.","solutions":[],"exampleFix":null,"handlingStrategy":null,"validationCode":null,"typeGuard":null,"tryCatchPattern":null,"preventionTips":[],"tags":[],"backgroundTag":null,"analyzedSha":"8880682c63083a91624de936797efa3ce9e498fd","analyzedAt":"2026-08-16T11:31:27.956Z","schemaVersion":2},"datasetVersion":"2026-08-16T13:17:31.715Z"}