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

Calculating dependencies ... done!
Dependency resolution took 1.77 s (backtrack: 0/20).

[ebuild  N     ] net-libs/llhttp-9.4.3:0/9.4::gentoo  40 KiB
[ebuild  N     ] dev-libs/libgit2-1.9.7:0/1.9::gentoo  USE="ssh -examples -gssapi -test -trace" 7588 KiB
[ebuild  NS    ] dev-lang/rust-bin-1.99.0:1.99.0::gentoo [1.94.0:1.94.0::gentoo] USE="clippy rustfmt (-big-endian) -doc* (-prefix) -rust-analyzer -rust-src -verify-sig" CPU_FLAGS_X86="sse2" LLVM_SLOT="(23%*) (-21%*)" 205530 KiB
[ebuild  N     ] x11-misc/xkeyboard-config-2.48::gentoo  USE="-test" 931 KiB
[ebuild  N     ] x11-libs/libxkbcommon-1.13.2::gentoo  USE="X wayland -doc -static-libs -test -tools" 1215 KiB
[ebuild  N     ] dev-db/zedis-0.13.0::gentoo  USE="-debug" 106593 KiB

Total: 6 packages (5 new, 1 in new slot), Size of downloads: 321894 KiB

The following USE changes are necessary to proceed:
 (see "package.use" in the portage(5) man page for more details)
# required by dev-db/zedis-0.13.0::gentoo
# required by =dev-db/zedis-0.13.0 (argument)
>=x11-libs/libxkbcommon-1.13.2 wayland