HLearn test on ubuntu Precise x64 within vagrant Box

ghc: panic! (the 'impossible' happened)

(GHC version 7.6.3 for x86_64-unknown-linux):

loadArchive "/home/vagrant/.cabal/lib/x86_64-linux-ghc-7.6.3/HLearn-2.0.0.0/libHSHLearn-2.0.0.0.a": failed

import HLearn.Algebra
import Control.DeepSeq
import HLearn.Models.Distributions
import Statistics.Distribution.Normal

dataset =  [1,2,3,4,5,6]
--dist = train dataset :: Normal Double

data Marble = Red | Green | Blue | White
    deriving (Read,Show,Eq,Ord)

simonBag :: [Marble]
simonBag = [Red, Red, Red, Green, Blue, Green, Red, Blue, Green, Green, Red, Red, Blue, Red, Red, Red, White]
simonDist = train simonBag :: Categorical Double Marble

Trac metadata

Trac field	Value
Version	7.6.3
Type	Bug
TypeOfFailure	OtherFailure
Priority	normal
Resolution	Unresolved
Component	Compiler
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