{
  "graph": null,
  "err": {
    "errs": [
      {
        "range": "d2/testdata/d2compiler/TestCompile/nested_edge.d2,1:2:23-1:16:37",
        "errmsg": "d2/testdata/d2compiler/TestCompile/nested_edge.d2:2:3: cannot create edge inside edge"
      }
    ]
  }
}