Resolving dependencies...
Configuring HsSyck-0.4...
Building HsSyck-0.4...
Failed to install HsSyck-0.4
Build log ( /home/builder/.cabal/logs/HsSyck-0.4.log ):
cabal: Entering directory '/tmp/cabal-tmp-3466/HsSyck-0.4'
[1 of 1] Compiling Main             ( /tmp/cabal-tmp-3466/HsSyck-0.4/dist/setup/setup.hs, /tmp/cabal-tmp-3466/HsSyck-0.4/dist/setup/Main.o )
Linking /tmp/cabal-tmp-3466/HsSyck-0.4/dist/setup/setup ...
Warning: defaultUserHooks in Setup script is deprecated.
Configuring HsSyck-0.4...
Warning: No 'build-type' specified. If you do not need a custom Setup.hs or
./configure script then use 'build-type: Simple'.
Building HsSyck-0.4...
Preprocessing library HsSyck-0.4...

on the commandline: warning:
    -fglasgow-exts is deprecated: Use individual extensions instead
[1 of 1] Compiling Data.Yaml.Syck   ( dist/build/Data/Yaml/Syck.hs, dist/build/Data/Yaml/Syck.o )

Data/Yaml/Syck.hsc:27:1: error:
    Failed to load interface for ‘Data.Generics’
    Use -v to see a list of the files searched for.

Data/Yaml/Syck.hsc:37:1: error:
    Failed to load interface for ‘Data.HashTable’
    Use -v to see a list of the files searched for.

Data/Yaml/Syck.hsc:38:1: error:
    Failed to load interface for ‘Data.ByteString.Char8’
    It is a member of the hidden package ‘bytestring-0.10.8.1’.
    Perhaps you need to add ‘bytestring’ to the build-depends in your .cabal file.
    Use -v to see a list of the files searched for.

Data/Yaml/Syck.hsc:39:1: error:
    Failed to load interface for ‘Data.ByteString.Char8’
    It is a member of the hidden package ‘bytestring-0.10.8.1’.
    Perhaps you need to add ‘bytestring’ 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-3466/HsSyck-0.4'
cabal: Error: some packages failed to install:
HsSyck-0.4 failed during the building phase. The exception was:
ExitFailure 1