many unmask requests after update??

Hi there, this is what i get if I try to update:

dirk@calculate ~ $ sudo cl-update
Password: 
Repositories synchronization
 * Checking Distros updates ...                                           [ ok ]
 * Checking Calculate updates ...                                         [ ok ]
 * Checking Gentoo updates ...                                            [ ok ]
 * Synchronization finished
System configuration
 * Update server http://miroir.linuxtricks.fr/calculate
Updating packages
 * Calculating dependencies ...                                           [ ok ]
[binary     U  ] x11-libs/libxshmfence-1.3::gentoo [1.2::gentoo] USE="-static-libs" ABI_X86="32 (64) (-x32)" 44 KiB
[binary   R    ] dev-libs/libpthread-stubs-0.4::gentoo  USE="(-static-libs%)" ABI_X86="32 (64) (-x32)" 35 KiB
[binary     U  ] media-fonts/liberation-fonts-2.00.1-r3::gentoo [2.00.1-r1::gentoo] USE="X -fontforge" 2053 KiB
[binary     U  ] dev-libs/libevdev-1.5.9::gentoo [1.5.7::gentoo] USE="-static-libs" ABI_X86="(64) -32 (-x32)" 100 KiB
[binary     U  ] media-libs/libepoxy-1.5.1::gentoo [1.4.2::gentoo] USE="X {-test}" ABI_X86="32 (64) (-x32)" 633 KiB
[binary     U  ] x11-misc/xkeyboard-config-2.23.1-r1::gentoo [2.20::gentoo] 956 KiB
[binary     U  ] net-wireless/wireless-regdb-20180509::gentoo [20171223-r1::gentoo] 25 KiB
[binary     U  ] sys-devel/autoconf-wrapper-13-r1::gentoo [13::gentoo] 19 KiB
[binary     U  ] media-fonts/dejavu-2.37::gentoo [2.35::gentoo] USE="X -fontforge" 5328 KiB
[binary     U  ] dev-libs/boehm-gc-7.6.4::gentoo [7.4.2::gentoo] USE="cxx threads -static-libs" ABI_X86="(64%*) -32% (-x32)" 347 KiB
[binary     U  ] sys-apps/ethtool-4.13::gentoo [4.8::gentoo] 149 KiB
[ebuild     UD ] app-emulation/virtualbox-additions-5.1.36-r1::gentoo [5.2.8::gentoo] 58200 KiB
[binary     U  ] app-misc/ca-certificates-20170717.3.36.1::gentoo [20161130.3.30.2::gentoo] USE="-cacert -insecure_certs" 209 KiB
[binary     U  ] dev-libs/protobuf-3.5.2:0/15::gentoo [3.5.1.1:0/15::gentoo] USE="zlib -emacs -examples -static-libs {-test}" ABI_X86="(64) -32 (-x32)" 2213 KiB
[binary     U  ] dev-libs/nettle-3.4:0/6.2::gentoo [3.3-r2:0/6.1::gentoo] USE="gmp -doc (-neon) -static-libs {-test}" ABI_X86="32 (64) (-x32)" CPU_FLAGS_X86="-aes" 540 KiB
[binary     U  ] media-gfx/exiv2-0.26_p20180319:0/26::gentoo [0.26_p20171104:0/26::gentoo] USE="nls png xmp -doc -examples -webready" ABI_X86="(64) -32 (-x32)" 2253 KiB
[binary  NS    ] virtual/jpeg-62:62::gentoo [0-r2:0::gentoo] ABI_X86="32 (64) (-x32)" 25 KiB
[binary     U  ] net-libs/gnutls-3.5.18:0/30::gentoo [3.5.15:0/30::gentoo] USE="cxx idn nls openssl seccomp tls-heartbeat zlib -dane -doc -examples -guile -openpgp -pkcs11 -sslv2 -sslv3 -static-libs {-test} (-test-full) -tools -valgrind" ABI_X86="32 (64) (-x32)" 1200 KiB
[binary     U  ] app-crypt/p11-kit-0.23.9::gentoo [0.23.2::gentoo] USE="asn1 libffi trust -debug" ABI_X86="(64) -32 (-x32)" 779 KiB
[binary     U  ] x11-libs/libxcb-1.13:0/1.12::gentoo [1.12-r2:0/1.12::gentoo] USE="xkb -doc (-selinux) -static-libs {-test}" ABI_X86="32 (64) (-x32)" 1336 KiB
[binary  N     ] net-libs/libnsl-0-r1:0/1::gentoo  ABI_X86="(64) -32 (-x32)" 19 KiB
[binary     U  ] x11-libs/libxkbfile-1.0.9-r1::gentoo [1.0.9::gentoo] USE="-static-libs" ABI_X86="(64%*) -32% (-x32)" 120 KiB
[binary     U  ] x11-apps/xkbcomp-1.4.1::gentoo [1.4.0::gentoo] 144 KiB
[binary     U  ] x11-libs/libXres-1.2.0::gentoo [1.0.7::gentoo] USE="-static-libs" 48 KiB
[binary     U  ] x11-libs/xcb-util-cursor-0.1.3-r2::gentoo [0.1.3-r1::gentoo] USE="-doc -static-libs {-test}" ABI_X86="(64) -32 (-x32)" 53 KiB
[binary     U  ] app-misc/tmux-2.7::gentoo [2.6::gentoo] USE="-debug (-selinux) -utempter -vim-syntax" 344 KiB
[binary     U  ] dev-db/sqlite-3.23.1:3::gentoo [3.22.0:3::gentoo] USE="readline secure-delete -debug -doc -icu -static-libs -tcl {-test} -tools" ABI_X86="32 (64) (-x32)" 1398 KiB
[binary     UD ] virtual/w3m-0::gentoo [0-r1::gentoo] 9 KiB
[binary     U  ] net-misc/wget-1.19.5::gentoo [1.19.1-r2::gentoo] USE="idn ipv6 nls pcre ssl zlib -debug -gnutls -libressl -ntlm -static {-test} -uuid" 795 KiB
[binary     U  ] dev-libs/nss-3.36.1::gentoo [3.36::gentoo] USE="nss-pem utils -cacert" ABI_X86="(64) -32 (-x32)" 2866 KiB
[binary     U  ] dev-lang/python-3.5.5:3.5/3.5m::gentoo [3.5.4-r1:3.5/3.5m::gentoo] USE="gdbm ipv6 ncurses readline sqlite ssl (threads) xml -build -examples -hardened -libressl {-test} -tk -wininst" 23031 KiB
[binary     U  ] dev-libs/libxml2-2.9.8:2::gentoo [2.9.7:2::gentoo] USE="icu ipv6 python readline -debug -examples -lzma -static-libs {-test}" ABI_X86="32 (64) (-x32)" PYTHON_TARGETS="python2_7 python3_5 -python3_4 -python3_6" 2328 KiB
[binary     U  ] dev-libs/libxslt-1.1.32::gentoo [1.1.30-r2::gentoo] USE="crypt -debug -examples -python -static-libs" ABI_X86="32 (64) (-x32)" PYTHON_TARGETS="python2_7" 637 KiB
[binary     U  ] app-crypt/mit-krb5-1.16-r2::gentoo [1.16::gentoo] USE="keyutils nls pkinit threads -doc -libressl -openldap (-selinux) {-test} -xinetd" ABI_X86="(64) -32 (-x32)" 1431 KiB
[binary  N     ] dev-python/namespace-zope-1::gentoo  PYTHON_TARGETS="python2_7 python3_5 (-pypy) (-pypy3) -python3_4 -python3_6" 26 KiB
[binary     U  ] dev-libs/xmlsec-1.2.25::gentoo [1.2.24-r1::gentoo] USE="nss openssl -doc -gcrypt -gnutls -libressl -static-libs" 387 KiB
[binary     U  ] dev-python/cryptography-2.1.4-r1::gentoo [2.1.4::gentoo] USE="-libressl {-test}" PYTHON_TARGETS="python2_7 python3_5 (-pypy) (-pypy3) -python3_4 -python3_6" 1159 KiB
[binary     U  ] dev-python/zope-interface-4.4.3::gentoo [4.3.2::gentoo] USE="{-test}" PYTHON_TARGETS="python2_7 python3_5 (-pypy) (-pypy3) -python3_4 -python3_6" 581 KiB
[binary     U  ] app-cdr/cdrtools-3.02_alpha09::gentoo [3.02_alpha07-r1::gentoo] USE="acl caps filecaps nls unicode" 1299 KiB
[binary     U  ] app-admin/eselect-1.4.12::gentoo [1.4.11::gentoo] USE="-doc -emacs -vim-syntax" 85 KiB
[binary     U  ] app-eselect/eselect-python-20171204::gentoo [20160516::gentoo] 14 KiB
[binary     U  ] virtual/perl-Encode-2.800.100_rc-r4::gentoo [2.800.100_rc-r3::gentoo] 10 KiB
[binary     U  ] virtual/perl-libnet-3.80.100_rc-r4::gentoo [3.80.100_rc-r3::gentoo] 10 KiB
[binary     U  ] virtual/perl-Digest-SHA-5.950.100_rc-r6::gentoo [5.950.100_rc-r5::gentoo] 10 KiB
[binary     U  ] virtual/perl-File-Spec-3.630.100_rc-r4::gentoo [3.630.100_rc-r3::gentoo] 10 KiB
[binary     U  ] virtual/perl-IO-1.360.100_rc-r4::gentoo [1.360.100_rc-r3::gentoo] 10 KiB
[binary     U  ] virtual/perl-Digest-1.170.100_rc-r6::gentoo [1.170.100_rc-r5::gentoo] 10 KiB
[binary     U  ] virtual/perl-Time-HiRes-1.974.100-r2::gentoo [1.974.100-r1::gentoo] 10 KiB
[binary     U  ] virtual/perl-IO-Compress-2.69.1_rc-r4::gentoo [2.69.1_rc-r3::gentoo] 10 KiB
[binary     U  ] net-firewall/shorewall-5.1.12.4::gentoo [5.1.12.3-r1::gentoo] USE="init ipv4 ipv6 -doc -lite4 -lite6 (-selinux)" 676 KiB
[binary     U  ] sys-apps/util-linux-2.31.1-r1::gentoo [2.30.2-r1::gentoo] USE="caps cramfs ncurses nls pam readline suid tty-helpers udev unicode -build -fdformat -kill -python (-selinux) -slang -static-libs (-systemd) {-test}" ABI_X86="32 (64) (-x32)" PYTHON_SINGLE_TARGET="python3_5 -python2_7 -python3_4 -python3_6" PYTHON_TARGETS="python2_7 python3_5 -python3_4 -python3_6" 4265 KiB
[ebuild     U  ] media-libs/freetype-2.9.1-r1:2::gentoo [2.8.1:2::gentoo] USE="X adobe-cff bzip2 cleartype_hinting png static-libs -bindist -debug -doc -fontforge -harfbuzz -infinality -utils" ABI_X86="32 (64) (-x32)" 1882 KiB
[binary     U  ] dev-libs/libinput-1.10.6:0/10::gentoo [1.9.4:0/10::gentoo] USE="-doc {-test}" INPUT_DEVICES="-wacom" 193 KiB
[binary     U  ] dev-libs/fribidi-0.19.7::gentoo [0.19.6::gentoo] USE="-static-libs" ABI_X86="(64) -32 (-x32)" 126 KiB
[binary     U  ] dev-qt/qtlockedfile-2.4.1_p20171024::gentoo [2.4.1_p20150629::gentoo] USE="-doc (-qt4%*) (-qt5%*)" 26 KiB
[binary     U  ] app-admin/testdisk-7.1_pre20180322::gentoo [7.0-r3::gentoo] USE="jpeg ntfs reiserfs zlib%* (-ewf) -qt5% -static (-qt4%)" 555 KiB
[binary     U  ] x11-libs/libpciaccess-0.14::gentoo [0.13.4::gentoo] USE="zlib -static-libs" ABI_X86="32 (64) (-x32)" 107 KiB
[binary     U  ] sys-apps/usbutils-009::gentoo [008-r1::gentoo] USE="-python" PYTHON_TARGETS="python2_7" 116 KiB
[binary     U  ] x11-libs/libdrm-2.4.91::gentoo [2.4.89::gentoo] USE="libkms -valgrind (-static-libs%)" ABI_X86="32 (64) (-x32)" VIDEO_CARDS="amdgpu intel nouveau radeon vmware (-exynos) (-freedreno) (-omap) (-tegra) (-vc4) (-vivante)" 435 KiB
[binary     U  ] net-wireless/wpa_supplicant-2.6-r6::gentoo [2.6-r3::gentoo] USE="ap dbus hs2-0 readline ssl -eap-sim -eapol_test% -fasteap -gnutls -libressl -p2p -privsep% (-ps3) -qt5 (-selinux) -smartcard -tdls -uncommon-eap-types (-wimax) -wps" 818 KiB
[binary     U  ] sys-boot/grub-2.02-r1:2/2.02-r1::gentoo [2.02:2/2.02::gentoo] USE="device-mapper fonts nls sdl themes truetype -debug -doc -efiemu -libzfs -mount -multislot -static {-test}" GRUB_PLATFORMS="efi-32 efi-64 pc -coreboot -emu -ieee1275 -loongson -multiboot -qemu -qemu-mips -uboot -xen -xen-32" 24618 KiB
[binary     U  ] x11-apps/xinit-1.4.0::gentoo [1.3.4-r3::gentoo] USE="minimal (-systemd%)" 73 KiB
[binary     U  ] sys-power/powertop-2.9::gentoo [2.8::gentoo] USE="X nls unicode" 266 KiB
[ebuild     U #] app-emulation/virtualbox-modules-5.2.12::gentoo [5.2.8::gentoo] USE="-pax_kernel" 623 KiB
[binary     U  ] net-print/cups-2.2.7::gentoo [2.1.4::gentoo] USE="acl dbus pam ssl threads usb -X -debug -java -kerberos -lprng-compat -python (-selinux) -static-libs (-systemd) -xinetd -zeroconf" ABI_X86="32 (64) (-x32)" PYTHON_TARGETS="python2_7" 7661 KiB
[binary     U  ] app-crypt/libsecret-0.18.6::gentoo [0.18.5::gentoo] USE="crypt introspection -debug {-test} -vala" 256 KiB
[binary     U  ] media-libs/mesa-17.3.9::gentoo [17.3.8::gentoo] USE="classic dri3 egl gallium gbm gles2 llvm nptl vaapi vdpau vulkan xa xvmc -bindist -d3d9 -debug -gles1 -opencl -openmax -osmesa -pax_kernel -pic (-selinux) -unwind -valgrind -wayland" ABI_X86="32 (64) (-x32)" VIDEO_CARDS="i915 i965 intel nouveau r100 r200 r300 r600 radeon radeonsi (-freedreno) (-imx) (-vc4) -virgl (-vivante) -vmware" 33626 KiB
[binary     U  ] x11-base/xorg-server-1.19.5-r2:0/1.19.5::gentoo [1.19.5-r1:0/1.19.5::gentoo] USE="glamor ipv6 kdrive suid udev xorg xvfb -debug -dmx -doc -libressl -minimal (-selinux) -static-libs (-systemd) -tslib -unwind -wayland -xcsecurity -xephyr -xnest" 4897 KiB
[binary     U  ] media-libs/harfbuzz-1.7.6:0/0.9.18::gentoo [1.7.2:0/0.9.18::gentoo] USE="cairo glib graphite icu introspection truetype -debug -fontconfig -static-libs {-test}" ABI_X86="32 (64) (-x32)" 1387 KiB
[binary     U  ] x11-drivers/xf86-input-libinput-0.27.1::gentoo [0.25.1::gentoo] 99 KiB
[binary     U  ] x11-drivers/xf86-video-amdgpu-18.0.1::gentoo [1.4.0::gentoo] 139 KiB
[binary     U  ] x11-drivers/xf86-video-vesa-2.4.0::gentoo [2.3.4::gentoo] 64 KiB
[binary     U  ] x11-drivers/xf86-video-intel-2.99.917_p20180214::gentoo [2.99.917_p20171018::gentoo] USE="dri dri3 sna udev uxa xvmc -debug -tools" 844 KiB
[binary     U  ] x11-drivers/xf86-video-ati-18.0.1::gentoo [7.10.0::gentoo] USE="glamor udev" 477 KiB
[binary     U  ] sys-apps/inxi-2.3.56::gentoo [2.3.55::gentoo] USE="bluetooth opengl -hddtemp" 148 KiB
[binary     U  ] app-text/mupdf-1.12.0-r2:0/1.12.0::gentoo [1.12.0:0/1.12.0::gentoo] USE="X curl opengl openssl -javascript -lcms -libressl -static -static-libs -vanilla" 28983 KiB
[binary     U  ] x11-libs/gdk-pixbuf-2.36.12:2::gentoo [2.36.11:2::gentoo] USE="X introspection jpeg jpeg2k tiff -debug {-test}" ABI_X86="32 (64) (-x32)" 1007 KiB
[binary     U  ] media-libs/libgphoto2-2.5.16:0/6::gentoo [2.5.14:0/6::gentoo] USE="exif gd jpeg nls -doc -examples -serial" ABI_X86="32 (64) (-x32)" CAMERAS="adc65 agfa_cl20 aox ax203 barbie canon casio_qv clicksmart310 digigr8 digita dimagev dimera3500 directory enigma13 fuji gsmart300 hp215 iclick jamcam jd11 jl2005a jl2005c kodak_dc120 kodak_dc210 kodak_dc240 kodak_dc3200 kodak_ez200 konica konica_qm150 largan lg_gsm mars mustek panasonic_coolshot panasonic_dc1000 panasonic_dc1580 panasonic_l859 pccam300 pccam600 pentax polaroid_pdc320 polaroid_pdc640 polaroid_pdc700 ptp2 ricoh ricoh_g3 samsung sierra sipix_blink2 sipix_web2 smal sonix sony_dscf1 sony_dscf55 soundvision spca50x sq905 st2205 stv0674 stv0680 sx330z topfield toshiba_pdrm11 tp6801" 2818 KiB
[binary     U  ] media-gfx/sane-backends-1.0.27-r1::gentoo [1.0.27::gentoo] USE="gphoto2 ipv6 threads usb v4l -snmp (-systemd) -xinetd -zeroconf" ABI_X86="32 (64) (-x32)" SANE_BACKENDS="abaton agfafocus apple artec artec_eplus48u as6e avision bh canon canon630u canon_dr cardscan coolscan coolscan2 coolscan3 dc210 dc240 dc25 dell1600n_net dmc epjitsu epson epson2 fujitsu genesys gt68xx hp hp3500 hp3900 hp4200 hp5400 hp5590 hpljm1005 hs2p ibm kodak kodakaio kvs1025 kvs20xx leo lexmark ma1509 magicolor matsushita microtek microtek2 mustek mustek_usb nec net niash p5 pie pixma plustek plustek_pp qcam ricoh rts8891 s9036 sceptre sharp sm3600 sm3840 snapscan sp15c st400 stv680 tamarack teco1 teco2 teco3 {test} u12 umax umax1220u umax_pp xerox_mfp -canon_pp -hpsj5s -kvs40xx -mustek_pp -mustek_usb2 -pnm" 7025 KiB
[binary     U  ] x11-libs/gtk+-3.22.29:3::gentoo [3.22.19:3::gentoo] USE="X cups introspection xinerama (-aqua) -broadway -cloudprint -colord -examples {-test} -vim-syntax -wayland" ABI_X86="32 (64) (-x32)" 16226 KiB
[binary     U  ] media-gfx/imagemagick-7.0.7.28:0/7.0.7.28::gentoo [7.0.7.19:0/7.0.7.19::gentoo] USE="bzip2 cxx djvu jpeg jpeg2k openexr openmp perl png svg tiff truetype webp wmf xml zlib -X -corefonts -fftw -fontconfig -fpx -graphviz -hdri -jbig -lcms -lqr -lzma (-opencl) -pango -postscript -q32 -q8 -raw -static-libs {-test}" 7702 KiB
[binary     U  ] www-plugins/adobe-flash-29.0.0.171:22::gentoo [29.0.0.113:22::gentoo] USE="nsplugin ppapi" ABI_X86="64 -32 (-x32)" 12439 KiB
[binary     U  ] sys-apps/calculate-utils-3.5.8.14:3::calculate [3.5.8.13:3::calculate] USE="backup client console dbus desktop install qt4 -minimal -pxe (-server)" PYTHON_TARGETS="python2_7" 2650 KiB
[binary     U  ] sys-apps/shadow-4.6::gentoo [4.5::gentoo] USE="acl cracklib nls pam xattr -audit (-selinux) -skey" 1696 KiB
[binary     U  ] net-misc/modemmanager-1.6.12:0/1::gentoo [1.6.4:0/1::gentoo] USE="introspection policykit qmi -mbim (-systemd) -vala" 1190 KiB
[binary     U  ] www-client/google-chrome-66.0.3359.139::gentoo [65.0.3325.181::gentoo] USE="plugins" L10N="am ar bg bn ca cs da de el en-GB es es-419 et fa fi fil fr gu he hi hr hu id it ja kn ko lt lv ml mr ms nb nl pl pt-BR pt-PT ro ru sk sl sr sv sw ta te th tr uk vi zh-CN zh-TW" 64577 KiB
[binary     U  ] gnome-extra/nm-applet-1.8.10::gentoo [1.8.6::gentoo] USE="introspection modemmanager -gcr (-selinux) -teamd" 1524 KiB
[binary     U  ] gnome-base/gvfs-1.32.2::gentoo [1.32.1-r1::gentoo] USE="archive cdda fuse gnome-keyring gphoto2 gtk http ios mtp nfs policykit samba udev udisks -afp -bluray -elogind -gnome-online-accounts -google (-systemd) {-test} -zeroconf" 1427 KiB
[binary  N     ] app-crypt/qca-2.1.3-r1:2::gentoo  USE="gpg qt4 qt5 sasl ssl -botan -debug -doc -examples -gcrypt -libressl -logger -nss -pkcs11 -softstore {-test}" 1524 KiB
[binary     U  ] media-libs/libmygpo-qt-1.1.0::gentoo [1.0.9::gentoo] USE="{-test} (-qt4%*) (-qt5%)" 123 KiB
[binary     U  ] net-misc/networkmanager-openvpn-1.8.2::gentoo [1.8.0-r1::gentoo] USE="gtk {-test}" 346 KiB
[binary     U  ] dev-qt/qtsingleapplication-2.6.1_p20171024::gentoo [2.6.1_p20150629::gentoo] USE="X -doc (-qt4%) (-qt5%*)" 36 KiB
[binary     U  ] app-admin/sudo-1.8.22-r2::gentoo [1.8.20_p2::gentoo] USE="nls pam sasl%* sendmail -gcrypt -ldap -offensive -openssl (-selinux) -skey" 837 KiB
[binary     U  ] x11-libs/libgksu-2.0.12-r4:2::gentoo [2.0.12-r3:2::gentoo] USE="nls -static-libs" 124 KiB
[binary     U  ] media-libs/libsdl2-2.0.8-r1::gentoo [2.0.4::gentoo] USE="X alsa dbus gles joystick opengl pulseaudio sound threads udev video xinerama (-altivec) (-aqua) (-custom-cflags) -haptic -libsamplerate% -nas -oss -static-libs -tslib -wayland -xscreensaver (-fusionsound%)" ABI_X86="32 (64) (-x32)" CPU_FLAGS_X86="3dnow mmx sse sse2" 1289 KiB
[binary     U #] app-emulation/virtualbox-5.2.12::gentoo [5.2.8::gentoo] USE="alsa opengl pam pulseaudio qt5 sdk udev vnc -debug -doc -headless -java -libressl -lvm -pax_kernel -python -vboxwebsrv" PYTHON_TARGETS="python2_7" 23203 KiB
[binary     U  ] net-irc/hexchat-2.14.1::gentoo [2.12.4-r2::gentoo] USE="dbus gtk libcanberra libnotify ssl -debug -libproxy -libressl -lua -perl -plugin-checksum -plugin-fishlim -plugin-sysinfo -python (-theme-manager) (-nls%*) (-spell%*)" PYTHON_SINGLE_TARGET="python3_5 -python3_4 -python3_6 (-python2_7%)" PYTHON_TARGETS="python3_5 -python3_4 -python3_6 (-python2_7%*)" 1444 KiB
[binary     U  ] www-client/chromium-66.0.3359.139::gentoo [65.0.3325.146::gentoo] USE="cups hangouts (pic) proprietary-codecs pulseaudio suid system-ffmpeg -component-build -custom-cflags -gnome-keyring -jumbo-build -kerberos (-neon) (-selinux) (-system-icu) (-system-libvpx) (-tcmalloc) -widevine" L10N="am ar bg bn ca cs da de el en-GB es es-419 et fa fi fil fr gu he hi hr hu id it ja kn ko lt lv ml mr ms nb nl pl pt-BR pt-PT ro ru sk sl sr sv sw ta te th tr uk vi zh-CN zh-TW" 78242 KiB
[binary     U  ] media-video/vlc-3.0.2:0/5-9::gentoo [2.2.8-r1:0/5-8::gentoo] USE="X a52 alsa cddb chromecast%* dbus dvbpsi dvd encode ffmpeg flac gcrypt gstreamer ieee1394 jpeg libnotify libsamplerate matroska mp3 mpeg musepack ncurses nfs%* ogg opus png pulseaudio qt5 samba speex ssl%* svg taglib theora truetype udev upnp v4l vaapi vcd%* vdpau vnc vorbis vpx x264 x265 xml (-altivec) (-aom) -archive% -bidi -bluray -chromaprint -dc1394 -debug (-directx) -dts -faad -fdk -fluidsynth -fontconfig -gme -gnome-keyring% -jack -kate -libass -libav -libcaca -libtar -libtiger -linsys -lirc -live -lua -macosx-notifications% (-macosx-qtkit) -microdns% -modplug -mtp (-neon) -omxil -opencv -optimisememory -postproc -projectm -rdp -rtsp -run-as-root -schroedinger -sdl-image -sftp -shout -sid -skins -soxr% {-test} -tremor -twolame -wayland% -wma-fixed -zeroconf -zvbi (-aalib%) (-atmo%) (-audioqueue%) (-avcodec%*) (-avformat%*) (-cdda%*) (-dvb%) (-dxva2%) (-gnome%) (-gnutls%) (-growl%) (-httpd%) (-macosx-dialog-provider%) (-macosx-eyetv%) (-macosx-quartztext%) (-opengl%*) (-sdl%*) (-swscale%*) (-vcdx%) (-vlm%) (-xcb%*) (-xv%*)" CPU_FLAGS_X86="mmx sse" 14259 KiB
[binary     U  ] app-emulation/virtualbox-extpack-oracle-5.2.12.122591::gentoo [5.2.8.121009::gentoo] 5199 KiB
[binary     U  ] media-video/mplayer-1.3.0-r5::gentoo [1.3.0-r4::gentoo] USE="X a52 alsa bidi cddb cdio cdparanoia cpudetection dv dvd dvdnav enca encode faac ftp gif iconv ipv6 jpeg libass live lzo mad mp3 network openal opengl osdmenu png pulseaudio samba sdl shm speex tga theora truetype unicode v4l vcd vdpau vorbis x264 xinerama xscreensaver xv xvid xvmc -aalib (-altivec) (-aqua) -bl -bluray -bs2b -debug -dga -doc -dts -dvb -faad -fbcon -ggi -gsm -jack -joystick -ladspa -libcaca -libmpeg2 -lirc -md5sum -mng -nas -nut -oss -pnm -pvr -radio -rar -rtc -rtmp (-selinux) -toolame -tremor -twolame (-vidix) -yuv4mpeg -zoran" CPU_FLAGS_X86="3dnow 3dnowext mmx mmxext sse sse2 ssse3" VIDEO_CARDS="-mga (-tdfx)" 2196 KiB
[binary     U  ] net-misc/remmina-1.2.0_rc29-r1::gentoo [1.2.0_rc24::gentoo] USE="crypt nls rdp ssh vnc (-ayatana) -gnome-keyring -libressl% -spice -telepathy -zeroconf" 591 KiB
[binary     U  ] media-gfx/nomacs-3.8.1::gentoo [3.8.0::gentoo] USE="jpeg opencv raw tiff -zip" 1833 KiB
[binary     U  ] net-print/hplip-3.18.3-r1::gentoo [3.17.10-r1::gentoo] USE="hpcups hpijs policykit qt5 scanner snmp -X -doc -fax -kde -libressl -libusb0 -minimal -parport -static-ppds" PYTHON_SINGLE_TARGET="python3_5 -python2_7 -python3_4 -python3_6" PYTHON_TARGETS="python2_7 python3_5 -python3_4 -python3_6" 19795 KiB
[binary     U  ] net-print/hplip-plugin-3.18.3::gentoo [3.17.10::gentoo] 1453 KiB
[binary     U  ] media-sound/clementine-1.3.1_p20180416::gentoo [1.3.1_p20171113-r1::calculate] USE="box cdda dbus dropbox googledrive ipod mtp pulseaudio udisks -debug -lastfm -mms -moodbar -projectm -seafile -skydrive {-test} -wiimote" 5415 KiB
 * 106 packages will be installed, 504797 KiB will be downloaded
                         ^^^^^^^^^^^^                                                                                                       

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 mask changes are necessary to proceed:
 (see "package.unmask" in the portage(5) man page for more details)
 # required by app-emulation/virtualbox-5.2.12::gentoo
 # required by app-emulation/virtualbox-extpack-oracle-5.2.12.122591::gentoo
 # required by @selected
 # required by @world (argument)
 # /etc/portage/package.mask/custom:
 # Freeze VirtualBox
=app-emulation/virtualbox-modules-5.2.12
 # required by app-emulation/virtualbox-extpack-oracle-5.2.12.122591::gentoo
 # required by @selected
 # required by @world (argument)
 # /etc/portage/package.mask/custom:
 # Freeze VirtualBox
=app-emulation/virtualbox-5.2.12

NOTE: The --autounmask-keep-masks option will prevent emerge
      from creating package.unmask or ** keyword changes.
 * Emerge failed
 * Update failed

Hi Dirk,
When you unmask the app-emulation/virtualbox package, you should also unmask its dependencies. Now the package is marked stable.