Configuring asn1-parse-0.9.4... Building asn1-parse-0.9.4... Preprocessing library asn1-parse-0.9.4... [1 of 1] Compiling Data.ASN1.Parse ( Data/ASN1/Parse.hs, .stack-work/dist/x86_64-linux/Cabal-1.22.5.0/build/Data/ASN1/Parse.o ) Data/ASN1/Parse.hs:30:1: Warning: The import of ‘Control.Applicative’ is redundant except perhaps to import instances from ‘Control.Applicative’ To import instances alone, use: import Control.Applicative() In-place registering asn1-parse-0.9.4... Installing library in /home/joey/.stack/snapshots/x86_64-linux/lts-5.5/7.10.3/lib/x86_64-linux-ghc-7.10.3/asn1-parse-0.9.4-LrLFPvrxagO8jGmFd1SmqK Registering asn1-parse-0.9.4...