# Pastebin BSdA2HUW
$ nix-build .
these derivations will be built:
  /nix/store/nhi14r62zg26523whw5ir91f6b2zv67f-process-bandcamp-0.1.0.0.drv
building '/nix/store/nhi14r62zg26523whw5ir91f6b2zv67f-process-bandcamp-0.1.0.0.drv'...
setupCompilerEnvironmentPhase
Build with /nix/store/jxrl0fcihi2vpxyf0makql4208ggx3fs-ghc-8.6.5.
unpacking sources
unpacking source archive /nix/store/8ycfa8x7sqabs8jlaad138yrqfb48grz-process-bandcamp
source root is process-bandcamp
patching sources
compileBuildDriverPhase
setupCompileFlags: -package-db=/build/setup-package.conf.d -j4 -threaded
[1 of 1] Compiling Main             ( Setup.hs, /build/Main.o )
Linking Setup ...
configuring
configureFlags: --verbose --prefix=/nix/store/z3hcsgf8a0b71b2jgkgfadjrb66xd0gs-process-bandcamp-0.1.0.0 --libdir=$prefix/lib/$compiler --libsubdir=$abi/$libname --docdir=/nix/store/yghycvcky9kwfhrfcgah0z884hdkb323-process-bandcamp-0.1.0.0-doc/share/doc/process-bandcamp-0.1.0.0 --with-gcc=gcc --package-db=/build/package.conf.d --ghc-option=-j4 --disable-split-objs --enable-library-profiling --profiling-detail=exported-functions --disable-profiling --enable-shared --disable-coverage --enable-static --disable-executable-dynamic --enable-tests --disable-benchmarks --enable-library-vanilla --disable-library-for-ghci --ghc-option=-split-sections --extra-lib-dirs=/nix/store/yfpiz0n3dykir9r2skbxlvcard9xp275-ncurses-6.1-20190112/lib --extra-lib-dirs=/nix/store/5h4mz4l2y4d7p7z2cp0l6d8d5mck7i32-libffi-3.2.1/lib --extra-lib-dirs=/nix/store/m99a93bbamjgwl5kna6xwyi9f92d9qji-gmp-6.1.2/lib
Using Parsec parser
Configuring process-bandcamp-0.1.0.0...
CallStack (from HasCallStack):
  die', called at libraries/Cabal/Cabal/Distribution/Simple/Configure.hs:950:20 in Cabal-2.4.0.1:Distribution.Simple.Configure
  configureFinalizedPackage, called at libraries/Cabal/Cabal/Distribution/Simple/Configure.hs:460:12 in Cabal-2.4.0.1:Distribution.Simple.Configure
  configure, called at libraries/Cabal/Cabal/Distribution/Simple.hs:596:20 in Cabal-2.4.0.1:Distribution.Simple
  confHook, called at libraries/Cabal/Cabal/Distribution/Simple/UserHooks.hs:67:5 in Cabal-2.4.0.1:Distribution.Simple.UserHooks
  configureAction, called at libraries/Cabal/Cabal/Distribution/Simple.hs:178:19 in Cabal-2.4.0.1:Distribution.Simple
  defaultMainHelper, called at libraries/Cabal/Cabal/Distribution/Simple.hs:115:27 in Cabal-2.4.0.1:Distribution.Simple
  defaultMain, called at Setup.hs:2:8 in main:Main
Setup: Encountered missing dependencies:
lens-regex-pcre >=1.1 && <2, shelly >=1.9 && <2

builder for '/nix/store/nhi14r62zg26523whw5ir91f6b2zv67f-process-bandcamp-0.1.0.0.drv' failed with exit code 1
error: build of '/nix/store/nhi14r62zg26523whw5ir91f6b2zv67f-process-bandcamp-0.1.0.0.drv' failed