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

Calculating dependencies ... done!
Dependency resolution took 1.01 s (backtrack: 0/20).

[ebuild  N     ] app-arch/wimlib-1.14.4-r1::gentoo  USE="-fuse -iso -ntfs -test -yasm" 1022 KiB

Total: 1 package (1 new), Size of downloads: 1022 KiB