These are the packages that would be merged, in order:

Calculating dependencies ... done!
Dependency resolution took 1.00 s (backtrack: 0/20).

[ebuild  N     ] dev-perl/HTML-Tree-5.70.0-r1::gentoo  USE="-test" PERL_FEATURES="ithreads (-debug) -quadmath" 147 KiB
[ebuild  N     ] dev-perl/HTML-Element-Extended-1.180.0-r3::gentoo  USE="-test" PERL_FEATURES="ithreads (-debug) -quadmath" 20 KiB

Total: 2 packages (2 new), Size of downloads: 167 KiB