Resolving dependencies...
Configuring data-default-class-0.1.2.0...
Configuring charsetdetect-ae-1.1.0.3...
Building charsetdetect-ae-1.1.0.3...
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Installed data-default-class-0.1.2.0
Configuring dlist-0.8.0.3...
Building dlist-0.8.0.3...
Configuring fingertree-0.1.1.0...
Installed dlist-0.8.0.3
Building fingertree-0.1.1.0...
Configuring fmlist-0.9...
Installed charsetdetect-ae-1.1.0.3
Building fmlist-0.9...
Configuring integer-logarithms-1.0.2...
Installed fmlist-0.9
Building integer-logarithms-1.0.2...
Configuring generic-deriving-1.11.2...
Installed fingertree-0.1.1.0
Building generic-deriving-1.11.2...
Configuring microlens-0.4.8.1...
Installed integer-logarithms-1.0.2
Building microlens-0.4.8.1...
Configuring mtl-2.2.1...
Installed microlens-0.4.8.1
Building mtl-2.2.1...
Configuring old-locale-1.0.0.7...
Installed mtl-2.2.1
Building old-locale-1.0.0.7...
Configuring pointedlist-0.6.1...
Installed old-locale-1.0.0.7
Building pointedlist-0.6.1...
Configuring primitive-0.6.2.0...
Installed pointedlist-0.6.1
Building primitive-0.6.2.0...
Configuring parallel-3.2.1.1...
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Building parallel-3.2.1.1...
Configuring oo-prototypes-0.1.0.0...
Installed parallel-3.2.1.1
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Installed stm-2.4.4.1
Building transformers-compat-0.5.1.4...
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Building text-1.2.2.2...
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Configuring vty-5.17.1...
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Installed vty-5.17.1
Installed yi-core-0.14.1
Configuring yi-frontend-vty-0.15.0...
Building yi-frontend-vty-0.15.0...
Failed to install yi-frontend-vty-0.15.0
Build log ( /home/builder/.cabal/logs/yi-frontend-vty-0.15.0.log ):
cabal: Entering directory '/tmp/cabal-tmp-26626/yi-frontend-vty-0.15.0'
Configuring yi-frontend-vty-0.15.0...
Building yi-frontend-vty-0.15.0...
Preprocessing library yi-frontend-vty-0.15.0...
[1 of 4] Compiling Yi.Frontend.Vty.Conversions ( src/Yi/Frontend/Vty/Conversions.hs, dist/build/Yi/Frontend/Vty/Conversions.o )
[2 of 4] Compiling Yi.Frontend.Vty  ( src/Yi/Frontend/Vty.hs, dist/build/Yi/Frontend/Vty.o )

src/Yi/Frontend/Vty.hs:168:24-29: error:
    • Couldn't match type ‘Bool’ with ‘Maybe ExitCode’
      Expected type: Bool -> IO ()
        Actual type: Maybe ExitCode -> IO ()
    • In the ‘end’ field of a record
      In the second argument of ‘($!)’, namely
        ‘Common.dummyUI
           {Common.main = main fs, Common.end = end fs,
            Common.refresh = requestRefresh fs,
            Common.userForceRefresh = Vty.refresh vty,
            Common.layout = layout fs}’
      In a stmt of a 'do' block:
        return
        $!
          Common.dummyUI
            {Common.main = main fs, Common.end = end fs,
             Common.refresh = requestRefresh fs,
             Common.userForceRefresh = Vty.refresh vty,
             Common.layout = layout fs}
cabal: Leaving directory '/tmp/cabal-tmp-26626/yi-frontend-vty-0.15.0'
cabal: Error: some packages failed to install:
yi-frontend-vty-0.15.0 failed during the building phase. The exception was:
ExitFailure 1