Resolving dependencies...
Configuring mtl-2.2.1...
Configuring old-locale-1.0.0.7...
Building mtl-2.2.1...
Building old-locale-1.0.0.7...
Installed old-locale-1.0.0.7
Configuring syb-0.6...
Building syb-0.6...
Configuring utf8-string-1.0.1.1...
Installed mtl-2.2.1
Building utf8-string-1.0.1.1...
Configuring old-time-1.1.0.3...
Installed syb-0.6
Building old-time-1.1.0.3...
Configuring text-1.2.2.1...
Installed utf8-string-1.0.1.1
Building text-1.2.2.1...
Installed old-time-1.1.0.3
Installed text-1.2.2.1
Configuring hashable-1.2.5.0...
Configuring parsec-3.1.11...
Building hashable-1.2.5.0...
Building parsec-3.1.11...
Configuring polyparse-1.12...
Installed hashable-1.2.5.0
Building polyparse-1.12...
Configuring unordered-containers-0.2.7.2...
Installed parsec-3.1.11
Building unordered-containers-0.2.7.2...
Installed polyparse-1.12
Configuring cpphs-1.20.2...
Building cpphs-1.20.2...
Installed unordered-containers-0.2.7.2
Configuring uniplate-1.6.12...
Building uniplate-1.6.12...
Installed cpphs-1.20.2
Configuring haskell-src-exts-1.17.1...
Building haskell-src-exts-1.17.1...
Installed uniplate-1.6.12
Installed haskell-src-exts-1.17.1
Configuring derive-2.5.26...
Building derive-2.5.26...
Installed derive-2.5.26
Downloading protocol-buffers-0.0.5...
Configuring protocol-buffers-0.0.5...
Building protocol-buffers-0.0.5...
Failed to install protocol-buffers-0.0.5
Build log ( /home/builder/.cabal/logs/protocol-buffers-0.0.5.log ):
cabal: Entering directory '/tmp/cabal-tmp-1163/protocol-buffers-0.0.5'
Configuring protocol-buffers-0.0.5...
Building protocol-buffers-0.0.5...
Preprocessing library protocol-buffers-0.0.5...
[ 1 of 28] Compiling Text.ProtocolBuffers.WireMessage ( Text/ProtocolBuffers/WireMessage.hs, dist/build/Text/ProtocolBuffers/WireMessage.o )

Text/ProtocolBuffers/WireMessage.hs:23:1: error:
    Failed to load interface for ‘Data.Generics’
    It is a member of the hidden package ‘syb-0.6’.
    Perhaps you need to add ‘syb’ to the build-depends in your .cabal file.
    Use -v to see a list of the files searched for.
cabal: Leaving directory '/tmp/cabal-tmp-1163/protocol-buffers-0.0.5'
cabal: Error: some packages failed to install:
protocol-buffers-0.0.5 failed during the building phase. The exception was:
ExitFailure 1