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

Calculating dependencies ... done!
Dependency resolution took 0.87 s (backtrack: 1/20).


!!! All ebuilds that could satisfy ">=app-arch/unrar-7" have been masked.
!!! One of the following masked packages is required to complete your request:
- app-arch/unrar-7.3.1::gentoo (masked by: unRAR license(s))
A copy of the 'unRAR' license is located at '/Volumes/Disk 1/Repository/portage-git/licenses/unRAR'.

- app-arch/unrar-7.2.7::gentoo (masked by: unRAR license(s))

(dependency required by "app-crypt/hashcat-7.1.2::gentoo" [ebuild])
(dependency required by "=app-crypt/hashcat-7.1.2" [argument])
For more information, see the MASKED PACKAGES section in the emerge
man page or refer to the Gentoo Handbook.