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

Calculating dependencies ... done!
Dependency resolution took 2.00 s (backtrack: 0/20).

[ebuild  N     ] sys-libs/mtdev-1.1.7::gentoo  295 KiB
[ebuild  N     ] x11-libs/xcb-util-renderutil-0.3.10::gentoo  256 KiB
[ebuild  N     ] x11-libs/xcb-util-wm-0.4.2::gentoo  279 KiB
[ebuild  N     ] x11-libs/xcb-util-0.4.1::gentoo  262 KiB
[ebuild  N     ] x11-libs/xcb-util-image-0.4.1::gentoo  283 KiB
[ebuild  N     ] x11-apps/xprop-1.2.8::gentoo  144 KiB
[ebuild  N     ] x11-libs/xcb-util-cursor-0.1.6::gentoo  267 KiB
[ebuild  N     ] kde-frameworks/extra-cmake-modules-6.31.0::gentoo  USE="-doc -test" 339 KiB
[ebuild  N     ] dev-libs/double-conversion-3.4.0:0/3::gentoo  USE="-test" 6871 KiB
[ebuild  N     ] dev-libs/md4c-0.6.0::gentoo  USE="md2html -test" 263 KiB
[ebuild  N     ] app-text/iso-codes-4.20.1::gentoo  16024 KiB
[ebuild  N     ] x11-apps/xset-1.2.6::gentoo  143 KiB
[ebuild  N     ] dev-libs/libevdev-1.13.7::gentoo  USE="-doc -test" 462 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 -doc -static-libs -test -tools -wayland" 1215 KiB
[ebuild   R    ] app-text/xmlto-0.0.28-r11::gentoo  USE="text* -latex" 125 KiB
[ebuild  N     ] x11-misc/xdg-utils-1.2.1-r11::gentoo  USE="X dbus -doc -gnome -perl -plasma" 287 KiB
[ebuild  N     ] kde-frameworks/kf-env-6:6::gentoo  0 KiB
[ebuild  N     ] dev-libs/libinput-1.32.0:0/10::gentoo  USE="-doc -lua -test" INPUT_DEVICES="-wacom" LUA_SINGLE_TARGET="lua5-4" 944 KiB
[ebuild  N     ] dev-qt/qtbase-6.11.2-r2:6/6.11.2::gentoo  USE="X concurrent dbus gui icu libinput network nls opengl sql sqlite ssl udev widgets xml (zstd) -accessibility -brotli -cups -custom-cflags -eglfs -evdev -gles2-only -gssapi -gtk -io-uring (-journald) -libproxy -mysql -oci8 -odbc -postgres -renderdoc -sctp -syslog -test -tslib -vulkan -wayland" 49398 KiB
[ebuild  N     ] dev-qt/qttools-6.11.2:6/6.11.2::gentoo  USE="assistant linguist opengl qdbus widgets (zstd) -custom-cflags -designer -distancefieldgenerator -gles2-only -kmap2qmap -pixeltool -qdoc -qml -qmlls -qtattributionsscanner -qtdiag -qtplugininfo -vulkan" LLVM_SLOT="22 -17 -18 -19 -20 -21" 9992 KiB
[ebuild  N     ] dev-qt/qttranslations-6.11.2:6/6.11.2::gentoo  USE="-custom-cflags" 1652 KiB
[ebuild  N     ] kde-frameworks/kconfig-6.29.0:6/6.29::gentoo  USE="dbus -debug -qml -test" 383 KiB
[ebuild  N     ] kde-frameworks/kdbusaddons-6.29.0:6/6.29::gentoo  USE="X -debug -test" 46 KiB
[ebuild  N     ] kde-frameworks/karchive-6.31.0:6/6.31::gentoo  USE="crypt zstd -debug -test" 813 KiB
[ebuild  N     ] dev-qt/qtshadertools-6.11.2:6/6.11.2::gentoo  USE="-custom-cflags -test" 1189 KiB
[ebuild  N     ] dev-qt/qtdeclarative-6.11.2-r1:6/6.11.2::gentoo  USE="jit network opengl sql ssl widgets -accessibility -custom-cflags -qmlls -svg -vulkan -wayland" 37872 KiB
[ebuild  N     ] kde-frameworks/kcoreaddons-6.29.0:6/6.29::gentoo  USE="dbus -debug -test" 2466 KiB
[ebuild  N     ] kde-frameworks/ki18n-6.31.0:6/6.31::gentoo  USE="-debug -test" PYTHON_SINGLE_TARGET="python3_14 -python3_12 -python3_13 (-python3_15)" 2979 KiB
[ebuild  N     ] kde-frameworks/ki18n-6.29.0:6/6.29::gentoo  USE="-debug -test" PYTHON_SINGLE_TARGET="python3_14 -python3_12 -python3_13 (-python3_15)" 2978 KiB
[ebuild  N     ] kde-frameworks/kdoctools-6.31.0:6/6.31::gentoo  USE="nls -debug -test" 453 KiB
[ebuild  N     ] kde-frameworks/kcrash-6.29.0:6/6.29::gentoo  USE="X -debug -test" 34 KiB
[ebuild  N     ] kde-frameworks/kservice-6.29.0:6/6.29::gentoo  USE="man -debug -test" 2319 KiB
[ebuild  N     ] kde-frameworks/kded-6.29.0:6/6.29::gentoo  USE="man -debug" 34 KiB

Total: 34 packages (33 new, 1 reinstall), Size of downloads: 141984 KiB

!!! Multiple package instances within a single package slot have been pulled
!!! into the dependency graph, resulting in a slot conflict:

kde-frameworks/ki18n:6

  (kde-frameworks/ki18n-6.31.0:6/6.31::gentoo, ebuild scheduled for merge) USE="-debug -test" PYTHON_SINGLE_TARGET="python3_14 -python3_12 -python3_13 (-python3_15)" pulled in by
    >=kde-frameworks/ki18n-6.31:6 required by (kde-frameworks/kdoctools-6.31.0:6/6.31::gentoo, ebuild scheduled for merge) USE="nls -debug -test"
    ^^                     ^^^^^^                                                                                                                                                                                                                                                   

  (kde-frameworks/ki18n-6.29.0:6/6.29::gentoo, ebuild scheduled for merge) USE="-debug -test" PYTHON_SINGLE_TARGET="python3_14 -python3_12 -python3_13 (-python3_15)" pulled in by
    =kde-frameworks/ki18n-6.29*:6 required by (kde-frameworks/kservice-6.29.0:6/6.29::gentoo, ebuild scheduled for merge) USE="man -debug -test"
    ^                     ^^^^^^^                                                                                                                                                                                                                                                  


It may be possible to solve this problem by using package.mask to
prevent one of those packages from being selected. However, it is also
possible that conflicting dependencies exist such that they are
impossible to satisfy simultaneously.  If such a conflict exists in
the dependencies of two different packages, then those packages can
not be installed simultaneously.

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


The following USE changes are necessary to proceed:
 (see "package.use" in the portage(5) man page for more details)
# required by x11-misc/xdg-utils-1.2.1-r11::gentoo
# required by kde-frameworks/kf-env-6::gentoo
# required by kde-frameworks/kconfig-6.29.0::gentoo
# required by kde-frameworks/kservice-6.29.0::gentoo
# required by kde-frameworks/kded-6.29.0::gentoo
# required by =kde-frameworks/kded-6.29.0 (argument)
>=app-text/xmlto-0.0.28-r11 text
# required by kde-frameworks/kcoreaddons-6.29.0::gentoo
# required by kde-frameworks/kcrash-6.29.0::gentoo
# required by kde-frameworks/kded-6.29.0::gentoo
# required by =kde-frameworks/kded-6.29.0 (argument)
>=dev-qt/qtbase-6.11.2-r2 icu

 * In order to avoid wasting time, backtracking has terminated early
 * due to the above autounmask change(s). The --autounmask-backtrack=y
 * option can be used to force further backtracking, but there is no
 * guarantee that it will produce a solution.