Resolving dependencies...
Configuring mtl-2.2.1...
Configuring network-2.6.3.1...
Building mtl-2.2.1...
Building network-2.6.3.1...
Installed mtl-2.2.1
Configuring text-1.2.2.1...
Building text-1.2.2.1...
Configuring zlib-0.6.1.2...
Installed network-2.6.3.1
Building zlib-0.6.1.2...
Installed zlib-0.6.1.2
Installed text-1.2.2.1
Configuring parsec-3.1.11...
Building parsec-3.1.11...
Installed parsec-3.1.11
Configuring harchive-0.2...
Building harchive-0.2...
Failed to install harchive-0.2
Build log ( /home/builder/.cabal/logs/harchive-0.2.log ):
cabal: Entering directory '/tmp/cabal-tmp-4751/harchive-0.2'
[1 of 1] Compiling Main             ( /tmp/cabal-tmp-4751/harchive-0.2/dist/setup/setup.hs, /tmp/cabal-tmp-4751/harchive-0.2/dist/setup/Main.o )
Linking /tmp/cabal-tmp-4751/harchive-0.2/dist/setup/setup ...
Configuring harchive-0.2...
Warning: No 'build-type' specified. If you do not need a custom Setup.hs or
./configure script then use 'build-type: Simple'.
Building harchive-0.2...
Preprocessing executable 'hfile' for harchive-0.2...
[1 of 6] Compiling Status           ( src/Status.hs, dist/build/hfile/hfile-tmp/Status.o )

src/Status.hs:136:43: error:
    • Could not deduce (Show a) arising from a use of ‘show’
      from the context: Num a
        bound by the type signature for:
                   showNum :: Num a => Int -> a -> String
        at src/Status.hs:135:1-40
      Possible fix:
        add (Show a) to the context of
          the type signature for:
            showNum :: Num a => Int -> a -> String
    • In the second argument of ‘(.)’, namely ‘show’
      In the second argument of ‘(.)’, namely ‘commify . show’
      In the expression: pad padding . commify . show
cabal: Leaving directory '/tmp/cabal-tmp-4751/harchive-0.2'
cabal: Error: some packages failed to install:
harchive-0.2 failed during the building phase. The exception was:
ExitFailure 1