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

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

[ebuild  N     ] dev-lang/unison-lang-bin-1.4.0:0/1.4.0::gentoo  37319 KiB

Total: 1 package (1 new), Size of downloads: 37319 KiB