Calculating dependencies... done!
[binary  N    #] app-eselect/eselect-opengl-1.3.1-r4::gentoo  0 KiB
[uninstall     ] media-libs/mesa-20.0.8::gentoo  USE="X classic dri3 egl gallium gbm gles2 (libglvnd) llvm lm-sensors vaapi vdpau wayland xa xvmc zstd -d3d9 -debug -gles1 -opencl -osmesa (-selinux) -test -unwind -valgrind -vulkan -vulkan-overlay" ABI_X86="32 (64) (-x32)" VIDEO_CARDS="i915 nouveau (-freedreno) -i965 -intel -iris (-lima) (-panfrost) -r100 -r200 -r300 -r600 -radeon -radeonsi (-vc4) -virgl (-vivante) -vmware" 
[ebuild  N    #] app-eselect/eselect-opencl-1.1.0-r4::gentoo  851 KiB
[uninstall     ] dev-libs/ocl-icd-2.2.12-r3::gentoo  USE="khronos-headers" ABI_X86="32 (64) (-x32)" 
[uninstall     ] dev-util/opencl-headers-2020.03.13-r1::gentoo 
[blocks b      ] app-eselect/eselect-opencl ("app-eselect/eselect-opencl" is blocking dev-libs/ocl-icd-2.2.12-r3, dev-util/opencl-headers-2020.03.13-r1)
[ebuild  N    #] x11-drivers/nvidia-drivers-418.88:0/418::wanderer  USE="X compat driver gtk3 kms multilib tools uvm -acpi -static-libs -wayland" ABI_X86="32 (64) (-x32)" 0 KiB
[blocks B      ] x11-drivers/nvidia-drivers[-libglvnd(-)] ("x11-drivers/nvidia-drivers[-libglvnd(-)]" is hard blocking x11-base/xorg-server-1.20.8-r1)
[blocks B      ] app-eselect/eselect-opengl ("app-eselect/eselect-opengl" is blocking x11-base/xorg-server-1.20.8-r1, media-libs/mesa-20.0.8)

Total: 3 packages (3 new, 1 binary, 3 uninstalls), Size of downloads: 851 KiB
Conflict: 3 blocks (2 unsatisfied)

 * Error: The above package list contains packages which cannot be
 * installed at the same time on the same system.

  (x11-drivers/nvidia-drivers-418.88:0/418::wanderer, ebuild scheduled for merge) pulled in by
    =x11-drivers/nvidia-drivers-418.88