node.js domain fail

gistfile1.js

var domain = require('domain')
  , fs = require('fs')
  , trycatch = require('trycatch')

function thirdPartyFoo(callback) {
  var d1 = domain.create()
  d1.on('error', function(err) {
    console.log('1: ', err)
    // It's cool, they caught it
    callback(err)
    // And cleaned it up!
    d1.dispose()
  })
  d1.run(function() {
    setTimeout(function() {
      // Ooops, they made a mistake
      throw new Error('First')
      callback()
    }, 100)
  })
}

function domainFoo(callback) {
  var d2 = domain.create()
  d2.on('error', function(err) {
    console.log('2: ', err)
    callback(err)
  })
  d2.run(function() {
    thirdPartyFoo(function(err, res) {
      if (err) {
        // Oh noes! Better log it.
        // It's probably a mongoose error...
        // Log the first error in err.errors
        console.log(err.errors[0])
        // Proceed
        callback()
      }
    })
  })
}

function trycatchFoo(callback) {
  trycatch(function() {
    thirdPartyFoo(function(err, res) {
      if (err) {
        // Oh noes! Better log it.
        // It's probably a mongoose error...
        // Log the first error in err.errors
        console.log(err.errors[0])
      }
      // Proceed
      callback()
    })
  }, function(err) {
    console.log('3: ', err)
    callback(err)
  })
}

domainFoo(function(err) {
  // Fail. Does not arrive
  console.log('=(')
})

/* This works
trycatchFoo(function(err) {
  console.log('Success!: ', err.message)
})
*/

// Keep the service alive, so we can tell when it dies
setInterval(function(){},10000)

Why does this fail?