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

Calculating dependencies ... done!
Dependency resolution took 0.82 s (backtrack: 0/20).


!!! All ebuilds that could satisfy "=www-client/google-chrome-unstable-156.0.8072.0" have been masked.
!!! One of the following masked packages is required to complete your request:
- www-client/google-chrome-unstable-156.0.8072.0::gentoo (masked by: google-chrome license(s))
A copy of the 'google-chrome' license is located at '/Volumes/Disk 1/Repository/portage-git/licenses/google-chrome'.


For more information, see the MASKED PACKAGES section in the emerge
man page or refer to the Gentoo Handbook.