Output path comparison

Parsing nix-env's performance statistics failed.

Parse error:
Error("expected value", line: 1, column: 1)

Evaluation output:
warning: ignoring the user-specified setting 'restrict-eval', because it is a restricted setting and you are not a trusted user
warning: ignoring the user-specified setting 'show-trace', because it is a restricted setting and you are not a trusted user
{
  "cpuTime": 318.761,
  "envs": {
    "number": 130974864,
    "elements": 199581511,
    "bytes": 3692249912
  },
  "list": {
    "elements": 930920251,
    "bytes": 7447362008,
    "concats": 9993642
  },
  "values": {
    "number": 271749862,
    "bytes": 6521996688
  },
  "symbols": {
    "number": 384146,
    "bytes": 17862853
  },
  "sets": {
    "number": 33642968,
    "bytes": 9220606648,
    "elements": 372977621
  },
  "sizes": {
    "Env": 16,
    "Value": 24,
    "Bindings": 8,
    "Attr": 24
  },
  "nrOpUpdates": 16125694,
  "nrOpUpdateValuesCopied": 273945678,
  "nrThunks": 190533194,
  "nrAvoided": 183350167,
  "nrLookups": 97174736,
  "nrPrimOpCalls": 79101066,
  "nrFunctionCalls": 115429060,
  "gc": {
    "heapSize": 13423796224,
    "totalBytes": 33201982000
  }
}