Resolving dependencies...
Configuring HUnit-1.2.5.2...
Building HUnit-1.2.5.2...
Preprocessing library HUnit-1.2.5.2...
[1 of 5] Compiling Test.HUnit.Terminal ( Test/HUnit/Terminal.hs, dist/build/Test/HUnit/Terminal.o )
[2 of 5] Compiling Test.HUnit.Lang  ( Test/HUnit/Lang.hs, dist/build/Test/HUnit/Lang.o )
[3 of 5] Compiling Test.HUnit.Base  ( Test/HUnit/Base.hs, dist/build/Test/HUnit/Base.o )
[4 of 5] Compiling Test.HUnit.Text  ( Test/HUnit/Text.hs, dist/build/Test/HUnit/Text.o )
[5 of 5] Compiling Test.HUnit       ( Test/HUnit.hs, dist/build/Test/HUnit.o )
In-place registering HUnit-1.2.5.2...
Running Haddock for HUnit-1.2.5.2...
Running hscolour for HUnit-1.2.5.2...
Preprocessing library HUnit-1.2.5.2...
Preprocessing library HUnit-1.2.5.2...
Haddock coverage:
 100% (  2 /  2) in 'Test.HUnit.Terminal'
  86% (  6 /  7) in 'Test.HUnit.Lang'
 100% ( 33 / 33) in 'Test.HUnit.Base'
 100% (  8 /  8) in 'Test.HUnit.Text'
 100% (  3 /  3) in 'Test.HUnit'
Documentation created: dist/doc/html/HUnit/index.html
Installing library in
/srv/hackage/var/build/tmp-install/lib/x86_64-linux-ghc-7.6.3/HUnit-1.2.5.2
Registering HUnit-1.2.5.2...
Installed HUnit-1.2.5.2
Downloading hogg-0.4.1.1...
Configuring hogg-0.4.1.1...
Building hogg-0.4.1.1...
Preprocessing library hogg-0.4.1.1...
[ 1 of 20] Compiling Codec.Container.Ogg.Dump ( Codec/Container/Ogg/Dump.hs, dist/build/Codec/Container/Ogg/Dump.o )
[ 2 of 20] Compiling Codec.Container.Ogg.CRC ( Codec/Container/Ogg/CRC.hs, dist/build/Codec/Container/Ogg/CRC.o )
[ 3 of 20] Compiling Codec.Container.Ogg.TimeScheme ( Codec/Container/Ogg/TimeScheme.hs, dist/build/Codec/Container/Ogg/TimeScheme.o )
[ 4 of 20] Compiling Codec.Container.Ogg.MessageHeaders ( Codec/Container/Ogg/MessageHeaders.hs, dist/build/Codec/Container/Ogg/MessageHeaders.o )
[ 5 of 20] Compiling Codec.Container.Ogg.Granulerate ( Codec/Container/Ogg/Granulerate.hs, dist/build/Codec/Container/Ogg/Granulerate.o )
[ 6 of 20] Compiling Codec.Container.Ogg.ByteFields ( Codec/Container/Ogg/ByteFields.hs, dist/build/Codec/Container/Ogg/ByteFields.o )
[ 7 of 20] Compiling Codec.Container.Ogg.RawPage ( Codec/Container/Ogg/RawPage.hs, dist/build/Codec/Container/Ogg/RawPage.o )
[ 8 of 20] Compiling Codec.Container.Ogg.Timestamp ( Codec/Container/Ogg/Timestamp.hs, dist/build/Codec/Container/Ogg/Timestamp.o )
[ 9 of 20] Compiling Codec.Container.Ogg.List ( Codec/Container/Ogg/List.hs, dist/build/Codec/Container/Ogg/List.o )
[10 of 20] Compiling Codec.Container.Ogg.Serial ( Codec/Container/Ogg/Serial.hs, dist/build/Codec/Container/Ogg/Serial.o )

Codec/Container/Ogg/Serial.hs:48:10:
    Duplicate instance declarations:
      instance Random Serial
        -- Defined at Codec/Container/Ogg/Serial.hs:48:10
      instance Random Word32 -- Defined in `System.Random'
Failed to install hogg-0.4.1.1
cabal: Error: some packages failed to install:
hogg-0.4.1.1 failed during the building phase. The exception was:
ExitFailure 1