Coffeescript closure fail?

gistfile1.coffee

series = [1,2,3]

fs = []
for i in series
  console.log "Pushing #{i}"
  fs.push (-> i)

for f in fs
  console.log f()

coffee test.coffee 
Pushing 1
Pushing 2
Pushing 3
3
3
3

# Why does this closure not work as expected?  How can I get it to work?

I think i is used out of the higher scope.
But you can copy i into a new scope and it works ... it also is pretty ugly.

series = [1,2,3]

fs = []
for i in series
  console.log "Pushing #{i}"
  fs.push ((i) -> (-> i))(i)

for f in fs
  console.log f()

Pushing 1
Pushing 2
Pushing 3
1
2
3

The do keyword is what I ended up with:

series = [1,2,3]

fs = []
for i in series
  do (i) ->
    console.log "Pushing #{i}"
    fs.push (-> i)

for f in fs
   console.log f()

Generated js:

(function() {
  var f, fs, i, series, _fn, _i, _j, _len, _len2;

  series = [1, 2, 3];

  fs = [];

  _fn = function(i) {
    console.log("Pushing " + i);
    return fs.push((function() {
      return i;
    }));
  };
  for (_i = 0, _len = series.length; _i < _len; _i++) {
    i = series[_i];
    _fn(i);
  }

  for (_j = 0, _len2 = fs.length; _j < _len2; _j++) {
    f = fs[_j];
    console.log(f());
  }

}).call(this);