Resolving dependencies...
Configuring dlist-0.8.0.2...
Configuring fmlist-0.9...
Building fmlist-0.9...
Building dlist-0.8.0.2...
Installed fmlist-0.9
Configuring generic-deriving-1.11.1...
Building generic-deriving-1.11.1...
Configuring primitive-0.6.1.0...
Installed dlist-0.8.0.2
Building primitive-0.6.1.0...
Configuring text-1.2.2.1...
Installed primitive-0.6.1.0
Building text-1.2.2.1...
Configuring utf8-string-1.0.1.1...
Installed generic-deriving-1.11.1
Building utf8-string-1.0.1.1...
Installed text-1.2.2.1
Configuring vector-0.11.0.0...
Installed utf8-string-1.0.1.1
Building vector-0.11.0.0...
Installed vector-0.11.0.0
Configuring ListLike-4.5...
Building ListLike-4.5...
Installed ListLike-4.5
Configuring process-extras-0.3.4...
Building process-extras-0.3.4...
Failed to install process-extras-0.3.4
Build log ( /home/builder/.cabal/logs/process-extras-0.3.4.log ):
cabal: Entering directory '/tmp/cabal-tmp-5495/process-extras-0.3.4'
Configuring process-extras-0.3.4...
Building process-extras-0.3.4...
Preprocessing library process-extras-0.3.4...
[1 of 7] Compiling Utils            ( src/Utils.hs, dist/build/Utils.o )
[2 of 7] Compiling System.Process.Common ( src/System/Process/Common.hs, dist/build/System/Process/Common.o )

src/System/Process/Common.hs:144:16: error:
    • Could not deduce (Monoid b) arising from a use of ‘<>’
      from the context: (ProcessMaker maker,
                         ProcessOutput b,
                         ListLikeProcessIO (ProcessInput b) c)
        bound by the type signature for:
                   readCreateProcess :: (ProcessMaker maker, ProcessOutput b,
                                         ListLikeProcessIO (ProcessInput b) c) =>
                                        maker -> ProcessInput b -> IO b
        at src/System/Process/Common.hs:112:1-131
      Possible fix:
        add (Monoid b) to the context of
          the type signature for:
            readCreateProcess :: (ProcessMaker maker, ProcessOutput b,
                                  ListLikeProcessIO (ProcessInput b) c) =>
                                 maker -> ProcessInput b -> IO b
    • In the second argument of ‘($)’, namely ‘out <> err <> ex’
      In a stmt of a 'do' block: return $ out <> err <> ex
      In the second argument of ‘($)’, namely
        ‘do { waitOut <- forkWait
                         $ outf <$> (hGetContents outh >>= forceOutput);
              waitErr <- forkWait $ errf <$> (hGetContents errh >>= forceOutput);
              ignoreResourceVanished
              $ do { unless (null input) $ do { ... };
                     hClose inh };
              out <- waitOut;
              .... }’

src/System/Process/Common.hs:162:33: error:
    • Could not deduce (Monoid b) arising from a use of ‘<>’
      from the context: (ProcessMaker maker,
                         ProcessOutput b,
                         ListLikeProcessIO (ProcessInput b) c)
        bound by the type signature for:
                   readCreateProcessLazy :: (ProcessMaker maker, ProcessOutput b,
                                             ListLikeProcessIO (ProcessInput b) c) =>
                                            maker -> ProcessInput b -> IO b
        at src/System/Process/Common.hs:154:1-135
      Possible fix:
        add (Monoid b) to the context of
          the type signature for:
            readCreateProcessLazy :: (ProcessMaker maker, ProcessOutput b,
                                      ListLikeProcessIO (ProcessInput b) c) =>
                                     maker -> ProcessInput b -> IO b
    • In the first argument of ‘(<$>)’, namely ‘(<>)’
      In the first argument of ‘(<*>)’, namely ‘(<>) <$> pure (pidf pid)’
      In the second argument of ‘($)’, namely
        ‘(<>) <$> pure (pidf pid)
         <*>
           unsafeInterleaveIO
             (readInterleaved
                [(outf, outh), (errf, errh)] (codef <$> waitForProcess pid))’

src/System/Process/Common.hs:199:22: error:
    • Could not deduce (Monoid b) arising from a use of ‘<>’
      from the context: (ListLikeProcessIO (ProcessInput b) c,
                         ProcessOutput b)
        bound by the type signature for:
                   readInterleaved' :: (ListLikeProcessIO (ProcessInput b) c,
                                        ProcessOutput b) =>
                                       [(ProcessInput b -> b, Handle)]
                                       -> IO b -> MVar (Either Handle b) -> IO b
        at src/System/Process/Common.hs:(174,1)-(175,93)
      Possible fix:
        add (Monoid b) to the context of
          the type signature for:
            readInterleaved' :: (ListLikeProcessIO (ProcessInput b) c,
                                 ProcessOutput b) =>
                                [(ProcessInput b -> b, Handle)]
                                -> IO b -> MVar (Either Handle b) -> IO b
    • In the first argument of ‘return’, namely ‘(x <> xs)’
      In a stmt of a 'do' block: return (x <> xs)
      In the expression:
        do { xs <- unsafeInterleaveIO $ takeChunks openCount;
             return (x <> xs) }
cabal: Leaving directory '/tmp/cabal-tmp-5495/process-extras-0.3.4'
cabal: Error: some packages failed to install:
process-extras-0.3.4 failed during the building phase. The exception was:
ExitFailure 1