{
  "FormatVersion": "0.6",
  "Settings": {
    "Arch": "386,amd64",
    "ArtifactsDest": "target",
    "Os": "darwin,linux,windows",
    "PackageVersion": "0.0.1",
    "PrereleaseInfo": "snapshot",
    "Verbosity": "v",
    "Resources": {
      "Include": "INSTALL*",
      "Exclude": "*.go"
    }
  }
}

{
  "FormatVersion": "0.6",
  "Settings": {
    "Arch": "386,amd64",
    "ArtifactsDest": "target",
    "Os": "darwin,linux,windows",
    "PackageVersion": "0.0.1",
    "PrereleaseInfo": "snapshot",
    "Verbosity": "v",
    "Resources": {
      "Include": "INSTALL*",
      "Exclude": "*.go"
    },
    "TaskSettings": {
      "archive": {
        "os": {
          "linux": "TarGz",
          "darwin": "TarGz"
        }
      }
    }
  }
}

Make darwin package TarGz too
Make darwin package TarGz too