build vibe-d-0.7.23 error on win7 x86?

[mzfhhhh via Digitalmars-d-learn]

win 7 x86,3GB ram:

1. dmd 2.066 vibe-d-0.7.23, it's ok.

2. dmd 2.067 vibe-d-0.7.23,
   show error msg "out of memory"

why?