{"record":{"id":"b1580c5d4355e225","repo":"openai/codex","slug":"code-cell-end-referenced-unknown-cell-code-cell-i","errorCode":null,"errorMessage":"code cell end referenced unknown cell {code_cell_id}","messagePattern":"code cell end referenced unknown cell (.+?)","errorType":"exception","errorClass":"anyhow::Error","httpStatus":null,"severity":"error","filePath":"codex-rs/rollout-trace/src/reducer/code_cell.rs","lineNumber":319,"sourceCode":"        &mut self,\n        seq: RawEventSeq,\n        wall_time_unix_ms: i64,\n        code_cell_id: CodeCellId,\n        status: CodeCellRuntimeStatus,\n    ) -> Result<()> {\n        if !self.rollout.code_cells.contains_key(&code_cell_id) {\n            if self.pending_code_cell_starts.contains_key(&code_cell_id) {\n                self.queue_code_cell_lifecycle_event(\n                    code_cell_id,\n                    PendingCodeCellLifecycleEvent {\n                        seq,\n                        wall_time_unix_ms,\n                        kind: PendingCodeCellLifecycleEventKind::Ended { status },\n                    },\n                );\n                return Ok(());\n            }\n            bail!(\"code cell end referenced unknown cell {code_cell_id}\");\n        }\n        self.end_code_cell(seq, wall_time_unix_ms, code_cell_id, status)\n    }\n\n    fn end_code_cell(\n        &mut self,\n        seq: RawEventSeq,\n        wall_time_unix_ms: i64,\n        code_cell_id: CodeCellId,\n        status: CodeCellRuntimeStatus,\n    ) -> Result<()> {\n        let Some(cell) = self.rollout.code_cells.get_mut(&code_cell_id) else {\n            bail!(\"code cell end referenced unknown cell {code_cell_id}\");\n        };\n\n        if cell.initial_response_at_unix_ms.is_none() {\n            cell.initial_response_at_unix_ms = Some(wall_time_unix_ms);\n            cell.initial_response_seq = Some(seq);","sourceCodeStart":301,"sourceCodeEnd":337,"githubUrl":"https://github.com/openai/codex/blob/339751715c64496cb86246bfb3935f40e309dd3d/codex-rs/rollout-trace/src/reducer/code_cell.rs#L301-L337","documentation":"Error \"code cell end referenced unknown cell {code_cell_id}\" thrown in openai/codex.","triggerScenarios":"Thrown at codex-rs/rollout-trace/src/reducer/code_cell.rs:319 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":"339751715c64496cb86246bfb3935f40e309dd3d","analyzedAt":"2026-08-25T05:35:09.876Z","schemaVersion":2},"datasetVersion":"2026-08-25T06:17:31.827Z"}