Resolving dependencies...
Configuring syb-0.6...
Configuring mtl-2.2.1...
Building syb-0.6...
Building mtl-2.2.1...
Configuring text-1.2.2.1...
Installed syb-0.6
Installed mtl-2.2.1
Configuring regex-base-0.93.2...
Building text-1.2.2.1...
Building regex-base-0.93.2...
Installed regex-base-0.93.2
Configuring regex-posix-0.95.2...
Building regex-posix-0.95.2...
Installed regex-posix-0.95.2
Installed text-1.2.2.1
Configuring parsec-3.1.11...
Building parsec-3.1.11...
Installed parsec-3.1.11
Configuring txt-sushi-0.6.0...
Configuring json-0.9.1...
Building txt-sushi-0.6.0...
Building json-0.9.1...
Installed json-0.9.1
Installed txt-sushi-0.6.0
Downloading csv-nptools-0.2.0...
Configuring csv-nptools-0.2.0...
Building csv-nptools-0.2.0...
Failed to install csv-nptools-0.2.0
Build log ( /home/builder/.cabal/logs/csv-nptools-0.2.0.log ):
cabal: Entering directory '/tmp/cabal-tmp-12965/csv-nptools-0.2.0'
Configuring csv-nptools-0.2.0...
Building csv-nptools-0.2.0...
Preprocessing executable 'csv2json' for csv-nptools-0.2.0...
[1 of 1] Compiling Main             ( csv2json.hs, dist/build/csv2json/csv2json-tmp/Main.o )

csv2json.hs:5:1: error:
    Failed to load interface for ‘Utils’
    Perhaps you meant Util (needs flag -package-key ghc-8.0.1.20161018)
    Use -v to see a list of the files searched for.
cabal: Leaving directory '/tmp/cabal-tmp-12965/csv-nptools-0.2.0'
cabal: Error: some packages failed to install:
csv-nptools-0.2.0 failed during the building phase. The exception was:
ExitFailure 1