!!! resolution failed
!!! request ( ( ('repo.livefs',) EqualityMatch: =False || ( ('category',) == virtual && ('package_is_real',) EqualityMatch: =False ) ) && =dev-ml/opam-installer-2.1.6 ), mode none
!!! trying dev-ml/opam-installer-2.1.6
!!!   request ~dev-ml/opam-2.1.6:=[ocamlopt], mode depend
!!!   trying dev-ml/opam-2.1.6-r1
!!!     request <dev-ml/cmdliner-2.0.0:=[ocamlopt], mode depend
!!!     trying dev-ml/cmdliner-1.3.0
!!!       failed due to failed inserting: [<PackageWrapper pkg=<<class 'pkgcore.ebuild.ebuild_src.package'> cpv='dev-ml/cmdliner-2.1.0' @0x110445230> wrapped='use' @0x110601950>]
!!!     removing choices involving <dev-ml/cmdliner-2.0.0:=[ocamlopt]
!!!   removing choices involving ~dev-ml/opam-2.1.6:=[ocamlopt]

Failures encountered:
!!! failed '( ( ('repo.livefs',) EqualityMatch: =False || ( ('category',) == virtual && ('package_is_real',) EqualityMatch: =False ) ) && =dev-ml/opam-installer-2.1.6 )'
potentials:
repo gentoo: [ ebuild src: dev-ml/opam-installer-2.1.6 ]