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

Calculating dependencies ... done!
Dependency resolution took 1.06 s (backtrack: 0/20).

[ebuild  N     ] dev-perl/Module-Runtime-0.18.0::gentoo  USE="-test" PERL_FEATURES="ithreads (-debug) -quadmath" 27 KiB
[ebuild  N     ] dev-perl/common-sense-3.750.0::gentoo  PERL_FEATURES="ithreads (-debug) -quadmath" 14 KiB
[ebuild  N     ] dev-perl/Crypt-OpenSSL-Guess-0.150.0::gentoo  USE="-test" PERL_FEATURES="ithreads (-debug) -quadmath" 12 KiB
[ebuild  N     ] dev-perl/Canary-Stability-2013.0.0::gentoo  PERL_FEATURES="ithreads (-debug) -quadmath" 5 KiB
[ebuild  N     ] dev-perl/Crypt-OpenSSL-Bignum-0.90.0-r1::gentoo  PERL_FEATURES="ithreads (-debug) -quadmath" 16 KiB
[ebuild  N     ] dev-perl/Types-Serialiser-1.10.0::gentoo  USE="-test" PERL_FEATURES="ithreads (-debug) -quadmath" 7 KiB
[ebuild  N     ] dev-perl/Crypt-OpenSSL-Random-0.170.0::gentoo  USE="-test" PERL_FEATURES="ithreads (-debug) -quadmath" 19 KiB
[ebuild  N     ] dev-perl/Crypt-OpenSSL-RSA-0.350.0::gentoo  USE="-test" PERL_FEATURES="ithreads (-debug) -quadmath" 32 KiB
[ebuild  N     ] dev-perl/JSON-XS-4.40.0::gentoo  USE="-examples -test" PERL_FEATURES="ithreads (-debug) -quadmath" 86 KiB
[ebuild  N     ] dev-perl/JSON-4.100.0::gentoo  USE="xs -examples -test" PERL_FEATURES="ithreads (-debug) -quadmath" 93 KiB
[ebuild  N     ] dev-perl/JSON-WebToken-0.100.0-r1::gentoo  USE="-test" PERL_FEATURES="ithreads (-debug) -quadmath" 25 KiB

Total: 11 packages (11 new), Size of downloads: 330 KiB