setInterval closure trick that's not sustainable

gistfile1.js

var assert = require('assert')
  , cradle = require('cradle')
  , conn   = new(cradle.Connection)('https://myCouch.couch',443,{
                  auth: {username: "mike", password: "pass"}})
  , db     = conn.database('articles');


function saveDoc(doc) {
  db.save(doc.data, printResult);
}

function printResult(err, response) {
  if (err) {
    console.log('Error: ' + err.error);
    console.log('Reason: ' + err.reason);
  } else
    console.dir(response);
}

var documents = [
  {
    func : saveDoc,
    data: {
      type:'post',
      html:'Test 2'
    }
  },
  {
    func : saveDoc,
    data: {
      type: 'post',
      html: 'Test 1',
      author: 'Michael Westbom'
    }
  },
  {
    func : function(doc) {
      conn.uuids(2, function(err,res) {
        res.forEach(function(id) { console.log('id: ' + id); });
        for (var i = 0; i < 2; i += 1) {
          db.save(res[i], doc.data[i], function(e, r) {
            if (e) {
              console.log('Save with ID error: ' + e.reason);
            } else {
              console.log('Save with ID result: ');
              console.dir(r);
            }
          });
        }
      });
    },
    data: [
      {
        type: 'post',
        html: 'Test HTML 2',
        created_at : new Date().toISOString(),
        author: 'Michael Westbom',
        title: 'Test 2'
      },
      {
        type : 'post',
        html: 'Test HTML 3',
        created_at: new Date().toISOString(),
        author: 'Michael Westbom',
        title: 'Test 3'
      }
    ]
  },
  {
    func : function(doc) {
      db.view('articles/all', function(err, res) {
        if (err) console.dir(err);
        else console.dir(res);
        /*res.forEach(function (row) {
          console.log("title: %s\nhtml: %s", row.title, row.html);
        });*/
      });
    },
  },
];

setInterval( (function(docs) {
  return function() {
    var doc = docs.shift();
    doc.func(doc);
    if (docs.length < 1)
      clearInterval(this);
  }
})(documents), 1000);