core/.github/workflows/matchers/check-json.json

{
  "problemMatcher": [
    {
      "owner": "check-json",
      "pattern": [
        {
          "regexp": "^(.+):\\s(.+\\sline\\s(\\d+)\\scolumn\\s(\\d+).+)$",
          "file": 1,
          "message": 2,
          "line": 3,
          "column": 4
        }
      ]
    }
  ]
}