{"record":{"id":"9e1f65a2ff26684c","repo":"xai-org/grok-build","slug":"fetch-of-base-ref-base-failed-fetch-out","errorCode":null,"errorMessage":"fetch of base ref '{base}' failed: {fetch_out}","messagePattern":"fetch of base ref '(.+?)' failed: (.+?)","errorType":"exception","errorClass":null,"httpStatus":null,"severity":"error","filePath":"crates/codegen/xai-grok-workspace/src/session/git.rs","lineNumber":3047,"sourceCode":"            \"merge --abort failed: {out}\"\n        );\n        return Ok(GitSyncBaseResult {\n            outcome: GitSyncBaseOutcome::Aborted,\n        });\n    }\n    ensure_on_branch(git_root, expected_branch).await?;\n    anyhow::ensure!(\n        !merge_in_progress(git_root).await?,\n        \"a merge is already in progress; resolve it or call again with abort\"\n    );\n    let dirty = git_cli(git_root, &[\"status\", \"--porcelain\"]).await?;\n    anyhow::ensure!(\n        dirty.is_empty(),\n        \"working tree is not clean; commit or discard changes before syncing the base\"\n    );\n    let base = base_ref.unwrap_or(\"HEAD\");\n    let (fetched, fetch_out) = git_cli_raw_mut(git_root, &[\"fetch\", \"origin\", base]).await?;\n    anyhow::ensure!(fetched, \"fetch of base ref '{base}' failed: {fetch_out}\");\n    if git_cli_raw(\n        git_root,\n        &[\"merge-base\", \"--is-ancestor\", \"FETCH_HEAD\", \"HEAD\"],\n    )\n    .await?\n    .0\n    {\n        return Ok(GitSyncBaseResult {\n            outcome: GitSyncBaseOutcome::UpToDate,\n        });\n    }\n    let (merged, merge_out) =\n        git_cli_raw_mut(git_root, &[\"merge\", \"--no-edit\", \"FETCH_HEAD\"]).await?;\n    if merged {\n        let sha = git_cli(git_root, &[\"rev-parse\", \"HEAD\"]).await?;\n        return Ok(GitSyncBaseResult {\n            outcome: GitSyncBaseOutcome::Merged { sha },\n        });","sourceCodeStart":3029,"sourceCodeEnd":3065,"githubUrl":"https://github.com/xai-org/grok-build/blob/bc7f02eddd3d84085849dc19ed216f11c23b0571/crates/codegen/xai-grok-workspace/src/session/git.rs#L3029-L3065","documentation":"Sync-base fetches `origin <base>` and requires the fetch to succeed before computing merge relationships. `git_cli_raw_mut` returns (success, output); if git exits non-zero, the command output is surfaced as this error so the caller sees why `git fetch origin <base>` failed.","triggerScenarios":"The `origin` remote is missing, unreachable, or unauthenticated; the base ref does not exist on origin; network/proxy failure; shallow or restricted clone lacking the ref.","commonSituations":"Repo cloned without an `origin` remote (local-only); expired credentials or missing SSH key; base branch deleted upstream; corporate proxy blocking git traffic.","solutions":["Check the fetch stderr in `{fetch_out}` for the concrete cause","Verify the remote exists: `git remote -v`; add it with `git remote add origin <url>` if missing","Refresh credentials (token, `ssh-add`) and test connectivity (`git ls-remote origin`)","Confirm the base ref exists on origin (`git ls-remote origin <base>`) and retry"],"exampleFix":"// before\n// no origin remote configured\nsync_base(&git_root, req)\n// after\n// terminal: git remote add origin git@github.com:org/repo.git\nsync_base(&git_root, req)","handlingStrategy":"retry","validationCode":"let ls = Command::new(\"git\").args([\"ls-remote\",\"origin\"]).current_dir(git_root).output()?;\nif !ls.status.success() { return Err(format!(\"origin unreachable: {}\", String::from_utf8_lossy(&ls.stderr))); }","typeGuard":null,"tryCatchPattern":"match sync_base(...).await {\n    Err(e) if e.to_string().contains(\"fetch of base ref\") => {\n        // transient? retry with backoff; otherwise fix remote/credentials per message\n    }\n    r => r?,\n}","preventionTips":["Configure and verify the origin remote before syncing","Keep credentials fresh (tokens, ssh-agent) in automation","Confirm the base ref exists upstream before requesting a sync"],"tags":["git","fetch","network","remote"],"backgroundTag":"git-fetch-failed","analyzedSha":"bc7f02eddd3d84085849dc19ed216f11c23b0571","analyzedAt":"2026-08-31T04:59:42.031Z","schemaVersion":2},"datasetVersion":"2026-08-31T09:17:48.483Z"}