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

Calculating dependencies ... done!
Dependency resolution took 0.98 s (backtrack: 0/20).

[ebuild  N     ] app-text/cmark-0.31.1-r1:0/0.31.1::gentoo  USE="-test" 258 KiB

Total: 1 package (1 new), Size of downloads: 258 KiB