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

Calculating dependencies ... done!
Dependency resolution took 1.14 s (backtrack: 0/20).

[ebuild  N     ] dev-cpp/abseil-cpp-20260107.1:0/2601.1.0-cpp20::gentoo  USE="-debug -test -test-helpers" 2251 KiB
[ebuild  N     ] dev-perl/IO-Tty-1.200.0::gentoo  USE="-test" PERL_FEATURES="ithreads (-debug) -quadmath" 28 KiB
[ebuild  N     ] sys-libs/libutempter-1.2.1::gentoo  USE="-static-libs" 18 KiB
[ebuild  N     ] dev-libs/protobuf-34.2:0/34.2.0::gentoo  USE="libprotoc (libupb) protobuf protoc zlib -conformance -debug -emacs -examples -test" 6872 KiB
[ebuild  N     ] net-misc/mosh-1.4.0-r2::gentoo  USE="client hardened server utempter -examples -nettle -syslog -ufw" 385 KiB

Total: 5 packages (5 new), Size of downloads: 9551 KiB