{
  "scope": "Private artifact-binding helper failure before query rustc/test; all core gates and original artifacts1 Cargo build already passed",
  "helper": "run-query.ps1",
  "helperSha256": "c112d1a496ed9d39e202f7704548863af45e532dfe89c675bb84b2569201b1ec",
  "observedExitCode": 1,
  "observedLine": 34,
  "exception": "Exception calling Substring with 1 argument(s): startIndex cannot be larger than length of string. (Parameter startIndex)",
  "cause": "Cargo reports top-level liboa_core.rlib without the hash suffix assumed by the helper",
  "recovery": "Read existing successful Cargo JSON; bind top-level rlib to one byte-identical hashed dependency rlib using SHA256 plus exact byte readback; preserve matching fingerprint. No repeated Cargo/core gates.",
  "resumedHelper": "run-query-resume.ps1",
  "resumedHelperSha256": "07c707cfe4c143af8a64a5ba88de24c866d9a9929f23206f39e21df589c0977b"
}