Resolving dependencies...
Configuring mtl-2.2.1...
Building mtl-2.2.1...
Preprocessing library mtl-2.2.1...
[ 1 of 22] Compiling Control.Monad.Writer.Class ( Control/Monad/Writer/Class.hs, dist/build/Control/Monad/Writer/Class.o )
[ 2 of 22] Compiling Control.Monad.State.Class ( Control/Monad/State/Class.hs, dist/build/Control/Monad/State/Class.o )
[ 3 of 22] Compiling Control.Monad.Reader.Class ( Control/Monad/Reader/Class.hs, dist/build/Control/Monad/Reader/Class.o )
[ 4 of 22] Compiling Control.Monad.RWS.Class ( Control/Monad/RWS/Class.hs, dist/build/Control/Monad/RWS/Class.o )
[ 5 of 22] Compiling Control.Monad.Identity ( Control/Monad/Identity.hs, dist/build/Control/Monad/Identity.o )
[ 6 of 22] Compiling Control.Monad.Error.Class ( Control/Monad/Error/Class.hs, dist/build/Control/Monad/Error/Class.o )
[ 7 of 22] Compiling Control.Monad.Cont.Class ( Control/Monad/Cont/Class.hs, dist/build/Control/Monad/Cont/Class.o )
[ 8 of 22] Compiling Control.Monad.Trans ( Control/Monad/Trans.hs, dist/build/Control/Monad/Trans.o )
[ 9 of 22] Compiling Control.Monad.Error ( Control/Monad/Error.hs, dist/build/Control/Monad/Error.o )
[10 of 22] Compiling Control.Monad.Except ( Control/Monad/Except.hs, dist/build/Control/Monad/Except.o )
[11 of 22] Compiling Control.Monad.List ( Control/Monad/List.hs, dist/build/Control/Monad/List.o )
[12 of 22] Compiling Control.Monad.RWS.Lazy ( Control/Monad/RWS/Lazy.hs, dist/build/Control/Monad/RWS/Lazy.o )
[13 of 22] Compiling Control.Monad.RWS ( Control/Monad/RWS.hs, dist/build/Control/Monad/RWS.o )
[14 of 22] Compiling Control.Monad.Reader ( Control/Monad/Reader.hs, dist/build/Control/Monad/Reader.o )
[15 of 22] Compiling Control.Monad.RWS.Strict ( Control/Monad/RWS/Strict.hs, dist/build/Control/Monad/RWS/Strict.o )
[16 of 22] Compiling Control.Monad.State.Lazy ( Control/Monad/State/Lazy.hs, dist/build/Control/Monad/State/Lazy.o )
[17 of 22] Compiling Control.Monad.State ( Control/Monad/State.hs, dist/build/Control/Monad/State.o )
[18 of 22] Compiling Control.Monad.State.Strict ( Control/Monad/State/Strict.hs, dist/build/Control/Monad/State/Strict.o )
[19 of 22] Compiling Control.Monad.Writer.Lazy ( Control/Monad/Writer/Lazy.hs, dist/build/Control/Monad/Writer/Lazy.o )
[20 of 22] Compiling Control.Monad.Writer ( Control/Monad/Writer.hs, dist/build/Control/Monad/Writer.o )
[21 of 22] Compiling Control.Monad.Writer.Strict ( Control/Monad/Writer/Strict.hs, dist/build/Control/Monad/Writer/Strict.o )
[22 of 22] Compiling Control.Monad.Cont ( Control/Monad/Cont.hs, dist/build/Control/Monad/Cont.o )
In-place registering mtl-2.2.1...
Running Haddock for mtl-2.2.1...
cabal: Haddock's internal GHC version must match the configured GHC version.
The GHC version is 7.10.2 but haddock is using GHC version 7.8.3
Creating package registration file: /tmp/pkgConf-mtl-2.2336465782861021530.1
Installing library in
/home/builder/hackage-server/build-cache/tmp-install/lib/x86_64-linux-ghc-7.10.2/mtl-2.2.1-KMpng31YRYc5JfMWFZ3FCU
Registering mtl-2.2.1...
Installed mtl-2.2.1
Configuring cpuperf-0.1.1...
Building cpuperf-0.1.1...
Preprocessing executable 'cpuperf' for cpuperf-0.1.1...

Shell.hs:1:12: Warning:
    -fglasgow-exts is deprecated: Use individual extensions instead
[1 of 3] Compiling Process          ( Process.hs, dist/build/cpuperf/cpuperf-tmp/Process.o )

Process.hs:11:9:
    No instance for (Exception a0) arising from a use of ‘handle’
    The type variable ‘a0’ is ambiguous
    Note: there are several potential instances:
      instance Exception NestedAtomically
        -- Defined in ‘Control.Exception.Base’
      instance Exception NoMethodError
        -- Defined in ‘Control.Exception.Base’
      instance Exception NonTermination
        -- Defined in ‘Control.Exception.Base’
      ...plus 17 others
    In the expression: handle (fail . show)
    In the expression:
      handle (fail . show)
      $ do { (ih, oh, eh, pid) <- runInteractiveCommand s;
             so <- hGetContents oh;
             se <- hGetContents eh;
             hClose ih;
             .... }
    In an equation for ‘run’:
        run s
          = handle (fail . show)
            $ do { (ih, oh, eh, pid) <- runInteractiveCommand s;
                   so <- hGetContents oh;
                   se <- hGetContents eh;
                   .... }

Process.hs:11:24:
    No instance for (Show a0) arising from a use of ‘show’
    The type variable ‘a0’ is ambiguous
    Note: there are several potential instances:
      instance Show NestedAtomically
        -- Defined in ‘Control.Exception.Base’
      instance Show NoMethodError -- Defined in ‘Control.Exception.Base’
      instance Show NonTermination -- Defined in ‘Control.Exception.Base’
      ...plus 54 others
    In the second argument of ‘(.)’, namely ‘show’
    In the first argument of ‘handle’, namely ‘(fail . show)’
    In the expression: handle (fail . show)
Failed to install cpuperf-0.1.1
cabal: Error: some packages failed to install:
cpuperf-0.1.1 failed during the building phase. The exception was:
ExitFailure 1