portage-ng / portage / dev-ruby / stringio / 3.1.6
pmerge --pretend --verbose
!!! resolution failed
!!! request ( ( ('repo.livefs',) EqualityMatch: =False || ( ('category',) == virtual && ('package_is_real',) EqualityMatch: =False ) ) && =dev-ruby/stringio-3.1.6 ), mode none
!!! trying dev-ruby/stringio-3.1.6
!!!   failed due to failed inserting: [<PackageWrapper pkg=<<class 'pkgcore.ebuild.ebuild_src.package'> cpv='dev-ruby/stringio-3.2.0' @0x110eecf70> wrapped='use' @0x11126eb50>]

Failures encountered:
!!! failed '( ( ('repo.livefs',) EqualityMatch: =False || ( ('category',) == virtual && ('package_is_real',) EqualityMatch: =False ) ) && =dev-ruby/stringio-3.1.6 )'
potentials:
repo gentoo: [ ebuild src: dev-ruby/stringio-3.1.6 ]

Wall time
0.565 s vs. 0.711 s for portage-ng