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

Calculating dependencies ... done!
Dependency resolution took 0.97 s (backtrack: 0/20).

[ebuild  N     ] dev-perl/Exception-Base-0.250.100-r2::gentoo  USE="-examples -test" PERL_FEATURES="ithreads (-debug) -quadmath" 59 KiB
[ebuild  N     ] dev-perl/Exception-Warning-0.40.100-r3::gentoo  USE="-examples -test" PERL_FEATURES="ithreads (-debug) -quadmath" 19 KiB

Total: 2 packages (2 new), Size of downloads: 78 KiB