Arguments: 
  /usr/local/bin/node /usr/local/bin/yarn

PATH: 
  /usr/local/bin:/usr/bin:/bin:/usr/sbin:/sbin

Yarn version: 
  0.17.10

Node version: 
  6.9.1

Platform: 
  darwin x64

npm manifest: 
  {
    "name": "koaplus",
    "version": "1.0.0",
    "description": "",
    "main": "lib/index.js",
    "dependencies": {
      "babel-generator": "^6.9.0",
      "babylon": "^6.8.0",
      "bluebird": "^3.4.0",
      "debug": "^2.2.0",
      "koa": "^2.0.0",
      "koa-router": "^7.0.1",
      "koa-serve-index": "^1.1.1",
      "koa-static": "^2.0.0",
      "source-map-support": "^0.4.0",
      "stc-helper": "^1.0.4",
      "stc-log": "^1.0.5"
    },
    "devDependencies": {
      "ava": "^0.14.0",
      "babel-cli": "6.7.7",
      "babel-core": "6.x.x",
      "babel-plugin-transform-runtime": "6.x.x",
      "babel-preset-es2015": "6.x.x",
      "babel-preset-es2015-loose": "7.0.0",
      "babel-preset-stage-3": "6.x.x",
      "istanbul": "^0.4.0",
      "parallelshell": "^2.0.0",
      "standard": "*"
    },
    "scripts": {
      "start": "npm run build && node lib/app",
      "dev": "npm run build && parallelshell 'npm run watch' 'npm run debug'",
      "test": "ava test/",
      "test-cov": "istanbul cover ./node_modules/mocha/bin/_mocha -- -t 50000 --recursive  -R spec test/",
      "copy": "rm -rf lib && cp -r src lib",
      "build": "npm run copy && babel --presets es2015-loose,stage-3 --plugins transform-runtime src/ --out-dir lib/ --source-maps inline",
      "watch-build": "npm run build -- --watch",
      "watch": "npm run watch-build",
      "lint": "standard src/*.js --fix",
      "debug": "devtool lib/app --watch >/dev/null 2>&1",
      "prepublish": "npm run lint && npm run build"
    },
    "author": "",
    "license": "MIT"
  }

yarn manifest: 
  No manifest

Lockfile: 
  No lockfile

Trace: 
  Error: getaddrinfo ENOTFOUND registry.yarnpkg.com registry.yarnpkg.com:443
      at errnoException (dns.js:28:10)
      at GetAddrInfoReqWrap.onlookup [as oncomplete] (dns.js:76:26)