portage-ng / portage / dev-haskell / hspec / 2.9.4
pmerge --pretend --verbose
!!! resolution failed
!!! request ( ( ('repo.livefs',) EqualityMatch: =False || ( ('category',) == virtual && ('package_is_real',) EqualityMatch: =False ) ) && =dev-haskell/hspec-2.9.4 ), mode none
!!! trying dev-haskell/hspec-2.9.4
!!!   request ~dev-haskell/hspec-core-2.9.4:=, mode depend
!!!   trying dev-haskell/hspec-core-2.9.4
!!!     request <dev-haskell/hspec-expectations-0.8.3:=, mode depend
!!!     trying dev-haskell/hspec-expectations-0.8.2
!!!       failed due to failed inserting: [<PackageWrapper pkg=<<class 'pkgcore.ebuild.ebuild_src.package'> cpv='dev-haskell/hspec-expectations-0.8.4' @0x10e6ec1b0> wrapped='use' @0x10e6c6250>]
!!!     removing choices involving <dev-haskell/hspec-expectations-0.8.3:=
!!!   removing choices involving ~dev-haskell/hspec-core-2.9.4:=

Failures encountered:
!!! failed '( ( ('repo.livefs',) EqualityMatch: =False || ( ('category',) == virtual && ('package_is_real',) EqualityMatch: =False ) ) && =dev-haskell/hspec-2.9.4 )'
potentials:
repo gentoo: [ ebuild src: dev-haskell/hspec-2.9.4 ]

Wall time
0.464 s vs. 0.280 s for portage-ng