cabal: Entering directory '/tmp/cabal-tmp-9954/random-shuffle-0.0.4'
Configuring random-shuffle-0.0.4...
Building random-shuffle-0.0.4...
Preprocessing library random-shuffle-0.0.4...
[1 of 1] Compiling System.Random.Shuffle ( src/System/Random/Shuffle.hs, dist/dist-sandbox-4797d5b5/build/System/Random/Shuffle.o )

src/System/Random/Shuffle.hs:59:1: warning: [-Wtabs]
    Tab character found here, and in 10 further locations.
    Please use spaces instead.
Creating package registration file:
/tmp/pkgConf-random-shuffle-0.0608413784756898537.4
Installing library in
/home/rsnel/src/mathekalender/2017-05/.cabal-sandbox/lib/x86_64-linux-ghc-8.0.1/random-shuffle-0.0.4-8EiuxwUHvLm8mLJM0rzlLA
Registering random-shuffle-0.0.4...
cabal: Leaving directory '/tmp/cabal-tmp-9954/random-shuffle-0.0.4'