Source repo: https://github.com/jwiegley/hnix Cabal version 1.20.0.2 cabal-install 1.20.0.3

cabal repl v2 log

$ cabal clean
$ cabal repl -v2
Package has never been configured. Configuring with default flags. If this
fails, please run configure manually.
/nix/store/dbrx6x3238hr8j07ys5n5jcy8012q9n3-ghc-7.8.3-wrapper/bin/ghc --numeric-version
looking for tool ghc-pkg near compiler in
/nix/store/dbrx6x3238hr8j07ys5n5jcy8012q9n3-ghc-7.8.3-wrapper/bin
found ghc-pkg in
/nix/store/dbrx6x3238hr8j07ys5n5jcy8012q9n3-ghc-7.8.3-wrapper/bin/ghc-pkg
/nix/store/dbrx6x3238hr8j07ys5n5jcy8012q9n3-ghc-7.8.3-wrapper/bin/ghc-pkg --version
/nix/store/dbrx6x3238hr8j07ys5n5jcy8012q9n3-ghc-7.8.3-wrapper/bin/ghc --supported-languages
/nix/store/dbrx6x3238hr8j07ys5n5jcy8012q9n3-ghc-7.8.3-wrapper/bin/ghc --info
Reading available packages...
Choosing modular solver.
Resolving dependencies...
Configuring hnix-0.0.1...
Flags chosen: parsec=False
Dependency ansi-wl-pprint ==0.6.7.1: using ansi-wl-pprint-0.6.7.1
Dependency base ==4.7.0.1: using base-4.7.0.1
Dependency containers ==0.5.5.1: using containers-0.5.5.1
Dependency hnix -any: using hnix-0.0.1
Dependency parsers ==0.12.1: using parsers-0.12.1
Dependency text ==1.1.1.3: using text-1.1.1.3
Dependency transformers ==0.3.0.0: using transformers-0.3.0.0
Dependency trifecta ==1.5.1: using trifecta-1.5.1
Dependency unordered-containers ==0.2.5.0: using unordered-containers-0.2.5.0
Using Cabal-1.20.0.2 compiled by ghc-7.8
Using compiler: ghc-7.8.3
Using install prefix: /home/.cabal
Binaries installed in: /home/.cabal/bin
Libraries installed in: /home/.cabal/lib/x86_64-linux-ghc-7.8.3/hnix-0.0.1
Private binaries installed in: /home/.cabal/libexec
Data files installed in: /home/.cabal/share/x86_64-linux-ghc-7.8.3/hnix-0.0.1
Documentation installed in:
/home/.cabal/share/doc/x86_64-linux-ghc-7.8.3/hnix-0.0.1
Configuration files installed in: /home/.cabal/etc
No alex found
Using ar found on system at:
/nix/store/ngsbygsjzv0fbj1543306l0a48qqy1vs-binutils-2.23.1/bin/ar
No c2hs found
No cpphs found
No ffihugs found
Using gcc version 4.8.3 found on system at:
/nix/store/085j31s6pfdwn6xl1g0x3i4pjcn2wvwf-gcc-wrapper-4.8.3/bin/gcc
Using ghc version 7.8.3 found on system at:
/nix/store/dbrx6x3238hr8j07ys5n5jcy8012q9n3-ghc-7.8.3-wrapper/bin/ghc
Using ghc-pkg version 7.8.3 found on system at:
/nix/store/dbrx6x3238hr8j07ys5n5jcy8012q9n3-ghc-7.8.3-wrapper/bin/ghc-pkg
No greencard found
Using haddock version 2.14.3 found on system at:
/nix/store/kb4kpcvmiiacvfabjldk7590js6v1f41-ghc-7.8.3/bin/haddock
No happy found
Using haskell-suite found on system at: haskell-suite-dummy-location
Using haskell-suite-pkg found on system at: haskell-suite-pkg-dummy-location
No hmake found
Using hpc version 0.67 found on system at:
/nix/store/dbrx6x3238hr8j07ys5n5jcy8012q9n3-ghc-7.8.3-wrapper/bin/hpc
Using hsc2hs version 0.67 found on system at:
/nix/store/dbrx6x3238hr8j07ys5n5jcy8012q9n3-ghc-7.8.3-wrapper/bin/hsc2hs
Using hscolour version 1.20 found on system at:
/nix/store/7i91d28q31wvy6pyilqzn0aayk4gw969-haskell-hscolour-ghc7.8.3-1.20.3-profiling-shared/bin/HsColour
No hugs found
No jhc found
Using ld found on system at:
/nix/store/085j31s6pfdwn6xl1g0x3i4pjcn2wvwf-gcc-wrapper-4.8.3/bin/ld
No lhc found
No lhc-pkg found
No nhc98 found
No pkg-config found
Using strip found on system at:
/nix/store/ngsbygsjzv0fbj1543306l0a48qqy1vs-binutils-2.23.1/bin/strip
Using tar found on system at:
/nix/store/jff4a6zqi0yrladx3kwy4v6844s3swpc-gnutar-1.27.1/bin/tar
No uhc found
creating dist/build
creating dist/build/autogen
Preprocessing library hnix-0.0.1...
creating dist/build
/nix/store/dbrx6x3238hr8j07ys5n5jcy8012q9n3-ghc-7.8.3-wrapper/bin/ghc --make -fbuilding-cabal-package -O -static -dynamic-too -dynosuf dyn_o -dynhisuf dyn_hi -outputdir dist/build -odir dist/build -hidir dist/build -stubdir dist/build -i -idist/build -i. -idist/build/autogen -Idist/build/autogen -Idist/build -optP-include -optPdist/build/autogen/cabal_macros.h -package-name hnix-0.0.1 -hide-all-packages -package-db dist/package.conf.inplace -package-id ansi-wl-pprint-0.6.7.1-bcb791551d3f60726e62d6ed3d9e5559 -package-id base-4.7.0.1-e4b74d27ad8c8987c63abc42a80e7335 -package-id containers-0.5.5.1-23e2a2b94d6e452c773209f31d8672c5 -package-id parsers-0.12.1-a8120509fcc4c9a37c857cfc20e1eff8 -package-id text-1.1.1.3-19b1d34e1f78946a216fb2a95da8973b -package-id transformers-0.3.0.0-16a97696ae672940f1523b262e566ba5 -package-id trifecta-1.5.1-c0e86e3cd2e696998fbd8db05479c32b -package-id unordered-containers-0.2.5.0-5ec2eaf5a3e407b9ef1c59a7d4aeb859 -XHaskell2010 -XDataKinds -XDeriveDataTypeable -XDeriveFunctor -XDeriveGeneric -XFlexibleContexts -XFlexibleInstances -XGADTs -XKindSignatures -XLambdaCase -XMultiWayIf -XOverloadedStrings -XPatternGuards -XRankNTypes -XTupleSections Nix.Eval Nix.Parser Nix.Types Nix.Pretty Nix.Parser.Library -Wall
[1 of 5] Compiling Nix.Parser.Library ( Nix/Parser/Library.hs, dist/build/Nix/Parser/Library.o )
[2 of 5] Compiling Nix.Types        ( Nix/Types.hs, dist/build/Nix/Types.o )
<snipped>