!!! resolution failed
!!! request ( ( ('repo.livefs',) EqualityMatch: =False || ( ('category',) == virtual && ('package_is_real',) EqualityMatch: =False ) ) && =dev-haskell/attoparsec-iso8601-1.0.2.1 ), mode none
!!! trying dev-haskell/attoparsec-iso8601-1.0.2.1
!!!   request <dev-haskell/base-compat-batteries-0.13:=, mode depend
!!!   trying dev-haskell/base-compat-batteries-0.12.1
!!!     request ~dev-haskell/base-compat-0.12.1:=, mode depend
!!!     trying dev-haskell/base-compat-0.12.1
!!!       failed due to failed inserting: [<PackageWrapper pkg=<<class 'pkgcore.ebuild.ebuild_src.package'> cpv='dev-haskell/base-compat-0.13.1' @0x1061441b0> wrapped='use' @0x1061485d0>]
!!!     removing choices involving ~dev-haskell/base-compat-0.12.1:=
!!!   removing choices involving <dev-haskell/base-compat-batteries-0.13:=

Failures encountered:
!!! failed '( ( ('repo.livefs',) EqualityMatch: =False || ( ('category',) == virtual && ('package_is_real',) EqualityMatch: =False ) ) && =dev-haskell/attoparsec-iso8601-1.0.2.1 )'
potentials:
repo gentoo: [ ebuild src: dev-haskell/attoparsec-iso8601-1.0.2.1 ]