Resolving dependencies...
Configuring utf8-string-1.0.1.1...
Building utf8-string-1.0.1.1...
Installed utf8-string-1.0.1.1
Configuring uhexdump-0.1...
Building uhexdump-0.1...
Failed to install uhexdump-0.1
Build log ( /home/builder/.cabal/logs/uhexdump-0.1.log ):
cabal: Entering directory '/tmp/cabal-tmp-8923/uhexdump-0.1'
Configuring uhexdump-0.1...
Building uhexdump-0.1...
Preprocessing executable 'uhexdump' for uhexdump-0.1...
[1 of 3] Compiling UTF8             ( UTF8.lhs, dist/build/uhexdump/uhexdump-tmp/UTF8.o )

UTF8.lhs:38:3: warning: [-Wunused-imports]
    The import of ‘Bits’ from module ‘Data.Bits’ is redundant
[2 of 3] Compiling FileBytes        ( FileBytes.hs, dist/build/uhexdump/uhexdump-tmp/FileBytes.o )
[3 of 3] Compiling Main             ( uhexdump.hs, dist/build/uhexdump/uhexdump-tmp/Main.o )

uhexdump.hs:22:1: error:
    Failed to load interface for ‘System.IO.UTF8’
    Use -v to see a list of the files searched for.
cabal: Leaving directory '/tmp/cabal-tmp-8923/uhexdump-0.1'
cabal: Error: some packages failed to install:
uhexdump-0.1 failed during the building phase. The exception was:
ExitFailure 1