Resolving dependencies...
Configuring random-1.1...
Configuring mtl-2.2.1...
Building random-1.1...
Building mtl-2.2.1...
Installed random-1.1
Installed mtl-2.2.1
Configuring mage-1.1.0...
Building mage-1.1.0...
Failed to install mage-1.1.0
Build log ( /home/builder/.cabal/logs/mage-1.1.0.log ):
cabal: Entering directory '/tmp/cabal-tmp-32223/mage-1.1.0'
Configuring mage-1.1.0...
Warning: 'ghc-options: -prof' is not necessary and will lead to problems when
used on a library. Use the configure flag --enable-library-profiling and/or
--enable-profiling.
Building mage-1.1.0...
Preprocessing executable 'mage' for mage-1.1.0...

on the commandline: warning:
    The -fvia-c flag does nothing; it will be removed in a future GHC release
[ 1 of 30] Compiling Util.Text        ( src/Util/Text.hs, dist/build/mage/mage-tmp/Util/Text.o )
[ 2 of 30] Compiling Util.PQueue      ( src/Util/PQueue.hs, dist/build/mage/mage-tmp/Util/PQueue.o )
[ 3 of 30] Compiling Util.Search      ( src/Util/Search.hs, dist/build/mage/mage-tmp/Util/Search.o )

src/Util/Search.hs:5:1: warning: [-Wunused-imports]
    The import of ‘Data.List’ is redundant
      except perhaps to import instances from ‘Data.List’
    To import instances alone, use: import Data.List()
[ 4 of 30] Compiling Util.Grid        ( src/Util/Grid.hs, dist/build/mage/mage-tmp/Util/Grid.o )
[ 5 of 30] Compiling Util             ( src/Util.hs, dist/build/mage/mage-tmp/Util.o )
[ 6 of 30] Compiling RandT            ( src/RandT.hs, dist/build/mage/mage-tmp/RandT.o )

src/RandT.hs:29:10: error:
    • Could not deduce (Applicative (RandT m))
        arising from the superclasses of an instance declaration
      from the context: Monad m
        bound by the instance declaration at src/RandT.hs:29:10-37
    • In the instance declaration for ‘Monad (RandT m)’

src/RandT.hs:34:10: error:
    • Could not deduce (GHC.Base.Alternative (RandT m))
        arising from the superclasses of an instance declaration
      from the context: MonadPlus m
        bound by the instance declaration at src/RandT.hs:34:10-45
    • In the instance declaration for ‘MonadPlus (RandT m)’
cabal: Leaving directory '/tmp/cabal-tmp-32223/mage-1.1.0'
cabal: Error: some packages failed to install:
mage-1.1.0 failed during the building phase. The exception was:
ExitFailure 1