Resolving dependencies...
Configuring hslua-0.1...
Building hslua-0.1...
Failed to install hslua-0.1
Build log ( /home/builder/.cabal/logs/hslua-0.1.log ):
cabal: Entering directory '/tmp/cabal-tmp-27369/hslua-0.1'
[1 of 1] Compiling Main             ( /tmp/cabal-tmp-27369/hslua-0.1/dist/setup/setup.hs, /tmp/cabal-tmp-27369/hslua-0.1/dist/setup/Main.o )
Linking /tmp/cabal-tmp-27369/hslua-0.1/dist/setup/setup ...
Configuring hslua-0.1...
Warning: No 'build-type' specified. If you do not need a custom Setup.hs or
./configure script then use 'build-type: Simple'.
Building hslua-0.1...
Preprocessing library hslua-0.1...
[1 of 1] Compiling Scripting.Lua    ( src/Scripting/Lua.hs, dist/build/Scripting/Lua.o )

src/Scripting/Lua.hs:829:10: error:
    • Illegal instance declaration for ‘StackValue String’
        (All instance types must be of the form (T a1 ... an)
         where a1 ... an are *distinct type variables*,
         and each type variable appears at most once in the instance head.
         Use FlexibleInstances if you want to disable this.)
    • In the instance declaration for ‘StackValue String’

src/Scripting/Lua.hs:839:10: error:
    • Illegal instance declaration for
        ‘StackValue (FunPtr LuaCFunction)’
        (All instance types must be of the form (T a1 ... an)
         where a1 ... an are *distinct type variables*,
         and each type variable appears at most once in the instance head.
         Use FlexibleInstances if you want to disable this.)
    • In the instance declaration for
        ‘StackValue (FunPtr LuaCFunction)’
cabal: Leaving directory '/tmp/cabal-tmp-27369/hslua-0.1'
cabal: Error: some packages failed to install:
hslua-0.1 failed during the building phase. The exception was:
ExitFailure 1