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

Calculating dependencies ... done!
Dependency resolution took 0.85 s (backtrack: 0/20).


!!! All ebuilds that could satisfy "=app-admin/amazon-ec2-init-20101127-r2" have been masked.
!!! One of the following masked packages is required to complete your request:
- app-admin/amazon-ec2-init-20101127-r2::gentoo (masked by: package.mask)
/Volumes/Disk 1/Repository/portage-git/profiles/package.mask:
# Michael Orlitzky <mjo@gentoo.org> (2017-01-07)
# This package has some dangerous quality and security issues, but
# people may still find it useful. It is masked to prevent accidental
# use. See bugs 603346 and 604998 for more information.


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