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

Calculating dependencies ... done!
Dependency resolution took 1.03 s (backtrack: 0/20).

[ebuild  N     ] dev-util/shadowman-5::gentoo  4 KiB
[ebuild  N     ] dev-util/sccache-0.16.0::gentoo  USE="-azure -debug -dist-client -dist-server -gcs -memcached -redis -s3 -webdav" 32432 KiB

Total: 2 packages (2 new), Size of downloads: 32436 KiB