!!! resolution failed
!!! request ( ( ('repo.livefs',) EqualityMatch: =False || ( ('category',) == virtual && ('package_is_real',) EqualityMatch: =False ) ) && =dev-ruby/json-2.18.0 ), mode none
!!! trying dev-ruby/json-2.18.0
!!!   failed due to failed inserting: [<PackageWrapper pkg=<<class 'pkgcore.ebuild.ebuild_src.package'> cpv='dev-ruby/json-2.19.4' @0x106a050d0> wrapped='use' @0x106fcecd0>]

Failures encountered:
!!! failed '( ( ('repo.livefs',) EqualityMatch: =False || ( ('category',) == virtual && ('package_is_real',) EqualityMatch: =False ) ) && =dev-ruby/json-2.18.0 )'
potentials:
repo gentoo: [ ebuild src: dev-ruby/json-2.18.0 ]