{
 "task": "G1040",
 "mutants": [
  {
   "object": "{{P}}I_ROLL_GRADE",
   "mutant": "line 5: = -> <> (eq)",
   "status": "killed",
   "hidden": "7/10",
   "failed_tests": [
    "FABRIC_NAME",
    "FIBRE_SYNTHETIC",
    "ROLL_WITHOUT_FABRIC"
   ]
  },
  {
   "object": "{{P}}I_ROLL_GRADE",
   "mutant": "line 12: 'S' -> 'Z' (lit)",
   "status": "killed",
   "hidden": "9/10",
   "failed_tests": [
    "FIBRE_SYNTHETIC"
   ]
  },
  {
   "object": "{{P}}I_ROLL_GRADE",
   "mutant": "line 13: 1 -> 2 (const)",
   "status": "killed",
   "hidden": "9/10",
   "failed_tests": [
    "LOOM_PREFIX"
   ]
  },
  {
   "object": "{{P}}I_ROLL_GRADE",
   "mutant": "line 16: 2 -> 3 (const)",
   "status": "killed",
   "hidden": "9/10",
   "failed_tests": [
    "AREA_ROUNDED"
   ]
  },
  {
   "object": "{{P}}I_ROLL_GRADE",
   "mutant": "line 18: <= -> > (rel)",
   "status": "killed",
   "hidden": "8/10",
   "failed_tests": [
    "GRADE_B",
    "GRADE_C"
   ]
  }
 ],
 "valid": 5,
 "killed": 5,
 "kill_rate": 1.0,
 "ok": true
}