portage-ng / portage / media-gfx / brscan4 / 0.4.11.1-r1
pmerge --pretend --verbose
pmerge: error: no matching ebuilds: '=media-gfx/brscan4-0.4.11.1-r1'

Wall time
0.409 s vs. 1.092 s for portage-ng