...asking again now because pugs is now available
I could be wrong about this, so feel free to correct me, but my understanding is that Pugs is a dead project. Already the Perl 6 spec has moved some considerable distance from what Pugs was targetting at the time (circa 2006-2007).
If you are a black belt über Haskell programmer of the seventeenth dan, then you should be able to figure out what's going wrong anyway. If you want to poke around at a decent Perl 6 implementation, then you ought to be looking at Rakudo.
• another intruder with the mooring in the heart of the Perl