Resolving dependencies...
Configuring StateVar-1.0.0.0...
Building StateVar-1.0.0.0...
Preprocessing library StateVar-1.0.0.0...
[1 of 1] Compiling Data.StateVar    ( src/Data/StateVar.hs, dist/build/Data/StateVar.o )
In-place registering StateVar-1.0.0.0...
Running Haddock for StateVar-1.0.0.0...
Running hscolour for StateVar-1.0.0.0...
Preprocessing library StateVar-1.0.0.0...
Preprocessing library StateVar-1.0.0.0...
Haddock coverage:
 100% ( 16 / 16) in 'Data.StateVar'
Documentation created: dist/doc/html/StateVar/index.html,
dist/doc/html/StateVar/StateVar.txt
Installing library in
/srv/hackage/var/build/tmp-install/lib/x86_64-linux-ghc-7.6.3/StateVar-1.0.0.0
Registering StateVar-1.0.0.0...
Installed StateVar-1.0.0.0
Downloading Hipmunk-5.2.0.14...
Configuring Hipmunk-5.2.0.14...
Building Hipmunk-5.2.0.14...
Preprocessing library Hipmunk-5.2.0.14...
[1 of 9] Compiling Physics.Hipmunk.Common ( dist/build/Physics/Hipmunk/Common.hs, dist/build/Physics/Hipmunk/Common.o )
[2 of 9] Compiling Physics.Hipmunk.Internal ( dist/build/Physics/Hipmunk/Internal.hs, dist/build/Physics/Hipmunk/Internal.o )
[3 of 9] Compiling Physics.Hipmunk.Body ( dist/build/Physics/Hipmunk/Body.hs, dist/build/Physics/Hipmunk/Body.o )
[4 of 9] Compiling Physics.Hipmunk.Shape ( dist/build/Physics/Hipmunk/Shape.hs, dist/build/Physics/Hipmunk/Shape.o )
[5 of 9] Compiling Physics.Hipmunk.Constraint ( dist/build/Physics/Hipmunk/Constraint.hs, dist/build/Physics/Hipmunk/Constraint.o )
[6 of 9] Compiling Physics.Hipmunk.Space ( dist/build/Physics/Hipmunk/Space.hs, dist/build/Physics/Hipmunk/Space.o )

Physics/Hipmunk/Space.hsc:177:20:
    Ambiguous occurrence `unsafeForeignPtrToPtr'
    It could refer to either `Foreign.unsafeForeignPtrToPtr',
                             imported from `Foreign' at Physics/Hipmunk/Space.hsc:64:1-27
                             (and originally defined in `Foreign.ForeignPtr')
                          or `Foreign.ForeignPtr.Unsafe.unsafeForeignPtrToPtr',
                             imported from `Foreign.ForeignPtr.Unsafe' at Physics/Hipmunk/Space.hsc:66:35-55
                             (and originally defined in `GHC.ForeignPtr')

Physics/Hipmunk/Space.hsc:192:18:
    Ambiguous occurrence `unsafeForeignPtrToPtr'
    It could refer to either `Foreign.unsafeForeignPtrToPtr',
                             imported from `Foreign' at Physics/Hipmunk/Space.hsc:64:1-27
                             (and originally defined in `Foreign.ForeignPtr')
                          or `Foreign.ForeignPtr.Unsafe.unsafeForeignPtrToPtr',
                             imported from `Foreign.ForeignPtr.Unsafe' at Physics/Hipmunk/Space.hsc:66:35-55
                             (and originally defined in `GHC.ForeignPtr')
Failed to install Hipmunk-5.2.0.14
cabal: Error: some packages failed to install:
Hipmunk-5.2.0.14 failed during the building phase. The exception was:
ExitFailure 1