portage-ng / portage / dev-ml / merlin / 5.5
pmerge --pretend --verbose
!!! resolution failed
!!! request ( ( ('repo.livefs',) EqualityMatch: =False || ( ('category',) == virtual && ('package_is_real',) EqualityMatch: =False ) ) && =dev-ml/merlin-5.5 ), mode none
!!! trying dev-ml/merlin-5.5
!!!   request <dev-lang/ocaml-5.4.0, mode depend
!!!   trying dev-lang/ocaml-5.3.0-r1
!!!     failed due to failed inserting: [<PackageWrapper pkg=<<class 'pkgcore.ebuild.ebuild_src.package'> cpv='dev-lang/ocaml-5.5.1' @0x1040cce10> wrapped='use' @0x10428c950>]
!!!   trying dev-lang/ocaml-4.14.2
!!!     failed due to failed inserting: [<PackageWrapper pkg=<<class 'pkgcore.ebuild.ebuild_src.package'> cpv='dev-lang/ocaml-5.5.1' @0x1040cce10> wrapped='use' @0x10428c950>]
!!!   removing choices involving <dev-lang/ocaml-5.4.0

Failures encountered:
!!! failed '( ( ('repo.livefs',) EqualityMatch: =False || ( ('category',) == virtual && ('package_is_real',) EqualityMatch: =False ) ) && =dev-ml/merlin-5.5 )'
potentials:
repo gentoo: [ ebuild src: dev-ml/merlin-5.5 ]

Wall time
0.422 s vs. 0.079 s for portage-ng