s4 build failure

$ nix-build --show-trace --expr 'with import <nixpkgs> { overlays = [ (import ./ops/nixpkgs-overlays.nix) ]; }; callPackage ./s4 { }'
these derivations will be built:
  /nix/store/9hbim0sm5qf415vsby4s33qf09kdf7xq-hspec-jenkins-lae-0.1.0.0.drv
building '/nix/store/9hbim0sm5qf415vsby4s33qf09kdf7xq-hspec-jenkins-lae-0.1.0.0.drv'...
setupCompilerEnvironmentPhase
Build with /nix/store/n5i1zdpmk2b1s3z96649xh8f9kr3g96s-ghc-8.4.3.
ignoring (possibly broken) abi-depends field for packages
ignoring (possibly broken) abi-depends field for packages
unpacking sources
unpacking source archive /nix/store/v977c6firykva3k7gbfdf1q23njvzjdh-s4
source root is s4
patching sources
compileBuildDriverPhase
setupCompileFlags: -package-db=/tmp/nix-build-hspec-jenkins-lae-0.1.0.0.drv-0/setup-package.conf.d -j4 -threaded
[1 of 1] Compiling Main             ( Setup.hs, /tmp/nix-build-hspec-jenkins-lae-0.1.0.0.drv-0/Main.o )
Linking Setup ...
configuring
configureFlags: --verbose --prefix=/nix/store/mqk3a6l9pi95zz0c1lp9w3p97ylds685-hspec-jenkins-lae-0.1.0.0 --libdir=$prefix/lib/$compiler --libsubdir=$abi/$libname --docdir=/nix/store/bp607zi4dpjpwlk13smizh3g5amrlzd8-hspec-jenkins-lae-0.1.0.0-doc/share/doc/hspec-jenkins-lae-0.1.0.0 --with-gcc=gcc --package-db=/tmp/nix-build-hspec-jenkins-lae-0.1.0.0.drv-0/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 --enable-library-vanilla --enable-library-for-ghci --ghc-option=-split-sections --extra-lib-dirs=/nix/store/s2n99784krxl91mfw3cnn9ylbb5fjvkx-ncurses-6.1/lib --extra-lib-dirs=/nix/store/rxaclc3vhxbzgfllv7601i85z854h48a-gmp-6.1.2/lib
Using Parsec parser
Configuring s4-0.1.0.0...
CallStack (from HasCallStack):
  die', called at libraries/Cabal/Cabal/Distribution/Simple/Configure.hs:958:20 in Cabal-2.2.0.1:Distribution.Simple.Configure
  configureFinalizedPackage, called at libraries/Cabal/Cabal/Distribution/Simple/Configure.hs:462:12 in Cabal-2.2.0.1:Distribution.Simple.Configure
  configure, called at libraries/Cabal/Cabal/Distribution/Simple.hs:596:20 in Cabal-2.2.0.1:Distribution.Simple
  confHook, called at libraries/Cabal/Cabal/Distribution/Simple/UserHooks.hs:67:5 in Cabal-2.2.0.1:Distribution.Simple.UserHooks
  configureAction, called at libraries/Cabal/Cabal/Distribution/Simple.hs:178:19 in Cabal-2.2.0.1:Distribution.Simple
  defaultMainHelper, called at libraries/Cabal/Cabal/Distribution/Simple.hs:115:27 in Cabal-2.2.0.1:Distribution.Simple
  defaultMain, called at Setup.hs:2:8 in main:Main
Setup: Encountered missing dependencies:
hspec-jenkins-lae -any

builder for '/nix/store/9hbim0sm5qf415vsby4s33qf09kdf7xq-hspec-jenkins-lae-0.1.0.0.drv' failed with exit code 1
error: build of '/nix/store/9hbim0sm5qf415vsby4s33qf09kdf7xq-hspec-jenkins-lae-0.1.0.0.drv' failed