Configuring async-2.1.0...
Building async-2.1.0...
Preprocessing library async-2.1.0...
[1 of 1] Compiling Control.Concurrent.Async ( Control/Concurrent/Async.hs, .stack-work/dist/x86_64-linux/Cabal-1.22.5.0/build/Control/Concurrent/Async.o )
In-place registering async-2.1.0...
Installing library in
/home/joey/.stack/snapshots/x86_64-linux/lts-5.5/7.10.3/lib/x86_64-linux-ghc-7.10.3/async-2.1.0-KuqnF1GrhHK5nNp6Zzm3jy
Registering async-2.1.0...