Resolving dependencies...
Configuring newtype-0.2...
Building newtype-0.2...
Installed newtype-0.2
Configuring constraints-0.3.4...
Building constraints-0.3.4...
Failed to install constraints-0.3.4
Build log ( /home/builder/.cabal/logs/constraints-0.3.4.log ):
cabal: Entering directory '/tmp/cabal-tmp-12906/constraints-0.3.4'
Warning: constraints.cabal: Unexpected section 'other-extensions' on line 24
Configuring constraints-0.3.4...
Building constraints-0.3.4...
Preprocessing library constraints-0.3.4...
[1 of 3] Compiling Data.Constraint  ( Data/Constraint.hs, dist/build/Data/Constraint.o )

Data/Constraint.hs:51:18: error:
    Module ‘GHC.Prim’ does not export ‘Constraint’
cabal: Leaving directory '/tmp/cabal-tmp-12906/constraints-0.3.4'
cabal: Error: some packages failed to install:
constraints-0.3.4 failed during the building phase. The exception was:
ExitFailure 1