!!! Found 2 make.conf files, using both '/etc/make.conf' and '/etc/portage/make.conf'
!!! Invalid news item: /usr/portage/metadata/news/2017-11-30-new-17-profiles/2017-11-30-new-17-profiles.en.txt
!!!   line 5: News-Item-Format: 2.0
!!! Invalid news item: /usr/portage/metadata/news/2018-01-14-gnucash/2018-01-14-gnucash.en.txt
!!!   line 5: News-Item-Format: 2.0
!!! Invalid news item: /usr/portage/metadata/news/2018-01-23-systemd-blocker/2018-01-23-systemd-blocker.en.txt
!!!   line 5: News-Item-Format: 2.0
!!! Invalid news item: /usr/portage/metadata/news/2017-08-19-hardened-sources-removal/2017-08-19-hardened-sources-removal.en.txt
!!!   line 5: News-Item-Format: 2.0
!!! Invalid news item: /usr/portage/metadata/news/2017-04-10-split-and-slotted-wine/2017-04-10-split-and-slotted-wine.en.txt
!!!   line 6: News-Item-Format: 2.0
!!! Invalid news item: /usr/portage/metadata/news/2017-10-04-gentoolkit-dev-deprecation/2017-10-04-gentoolkit-dev-deprecation.en.txt
!!!   line 5: News-Item-Format: 2.0
!!! Invalid news item: /usr/portage/metadata/news/2018-06-23-mpfr-4-update/2018-06-23-mpfr-4-update.en.txt
!!!   line 5: News-Item-Format: 2.0
!!! Invalid news item: /usr/portage/metadata/news/2017-11-21-old-wine-versions-moving-to-overlay/2017-11-21-old-wine-versions-moving-to-overlay.en.txt
!!!   line 5: News-Item-Format: 2.0
!!! Invalid news item: /usr/portage/metadata/news/2017-07-16-systemd-rootprefix/2017-07-16-systemd-rootprefix.en.txt
!!!   line 5: News-Item-Format: 2.0
!!! Invalid news item: /usr/portage/metadata/news/2018-03-13-portage-rsync-verification-unstable/2018-03-13-portage-rsync-verification-unstable.en.txt
!!!   line 5: News-Item-Format: 2.0
!!! Invalid news item: /usr/portage/metadata/news/2018-05-22-python3-6/2018-05-22-python3-6.en.txt
!!!   line 5: News-Item-Format: 2.0
!!! Invalid news item: /usr/portage/metadata/news/2017-10-10-perl-5_26-update/2017-10-10-perl-5_26-update.en.txt
!!!   line 5: News-Item-Format: 2.0
!!! Invalid news item: /usr/portage/metadata/news/2018-01-30-portage-rsync-verification/2018-01-30-portage-rsync-verification.en.txt
!!!   line 5: News-Item-Format: 2.0
!!! Invalid news item: /usr/portage/metadata/news/2018-04-08-radicale-2-requires-pre-install-migration/2018-04-08-radicale-2-requires-pre-install-migration.en.txt
!!!   line 5: News-Item-Format: 2.0
!!! Invalid news item: /usr/portage/metadata/news/2017-12-26-experimental-amd64-17-1-profiles/2017-12-26-experimental-amd64-17-1-profiles.en.txt
!!!   line 5: News-Item-Format: 2.0

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

sys-libs/readline:0

  (sys-libs/readline-7.0_p3:0/7::gentoo, ebuild scheduled for merge) pulled in by
    >=sys-libs/readline-7.0:0= required by (app-shells/bash-4.4_p12:0/0::gentoo, ebuild scheduled for merge)
    ^^                  ^^^^^^

  (sys-libs/readline-6.3_p8-r2:0/0::gentoo, installed) pulled in by
    >=sys-libs/readline-4.1:0/0= required by (dev-lang/python-2.7.12:2.7/2.7::gentoo, installed)
                           ^^^^^
    (and 2 more with the same problem)

app-arch/bzip2:0

  (app-arch/bzip2-1.0.6-r9:0/1::gentoo, ebuild scheduled for merge) pulled in by
    (no parents that aren't satisfied by other packages in this slot)

  (app-arch/bzip2-1.0.6-r7:0/0::gentoo, installed) pulled in by
    app-arch/bzip2:0/0= required by (dev-lang/python-2.7.12:2.7/2.7::gentoo, installed)
                  ^^^^^

NOTE: Use the '--verbose-conflicts' option to display parents omitted above

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. You may want to try a larger value of
the --backtrack option, such as --backtrack=30, in order to see if
that will solve this conflict automatically.

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


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

  (sys-apps/coreutils-8.28-r1:0/0::gentoo, ebuild scheduled for merge) pulled in by
    sys-apps/coreutils required by @system
    sys-apps/coreutils required by (app-admin/eselect-1.4.5:0/0::gentoo, installed)
    >=sys-apps/coreutils-6.4 required by (sys-apps/portage-2.3.0:0/0::gentoo, installed)

  (sys-apps/sandbox-2.10-r1:0/0::gentoo, installed) pulled in by
    >=sys-apps/sandbox-2.2 required by (sys-apps/portage-2.3.0:0/0::gentoo, installed)


For more information about Blocked Packages, please refer to the following
section of the Gentoo Linux x86 Handbook (architecture is irrelevant):

https://wiki.gentoo.org/wiki/Handbook:X86/Working/Portage#Blocked_packages

Calculating dependencies
 * IMPORTANT: 12 news items need reading for repository 'gentoo'.
 * Use eselect news read to view new items.

.... done!
[ebuild     U  ] sys-libs/glibc-2.25-r11 [2.22-r4] USE="rpc%* (-audit) -caps% -headers-only%"
[ebuild     U  ] app-arch/bzip2-1.0.6-r9 [1.0.6-r7]
[ebuild     U  ] sys-devel/gnuconfig-20170101 [20160402]
[ebuild     U  ] sys-apps/baselayout-2.4.1-r2 [2.3]
[ebuild     U  ] sys-apps/busybox-1.28.0 [1.24.2]
[ebuild     U  ] sys-devel/patch-2.7.6-r1 [2.7.5]
[ebuild     U  ] app-arch/xz-utils-5.2.3 [5.2.2] USE="extra-filters%*"
[ebuild     U  ] sys-apps/file-5.33-r2 [5.25] PYTHON_TARGETS="python3_5%* -python3_4* -python3_6%"
[ebuild     U  ] sys-apps/coreutils-8.28-r1 [8.23] USE="-hostname% -kill% {-test%}"
[ebuild     U  ] sys-apps/net-tools-1.60_p20161110235919 [1.60_p20160215155418]
[ebuild     U  ] sys-apps/less-529 [481]
[ebuild  NS    ] sys-devel/binutils-2.29.1-r1 [2.25.1-r1] USE="cxx nls -multitarget -static-libs {-test} -vanilla"
[ebuild     U  ] app-arch/tar-1.29-r3 [1.29-r1]
[ebuild  N     ] dev-libs/elfutils-0.170-r1  USE="bzip2 nls utils -lzma -static-libs {-test} (-threads)"
[ebuild     U  ] sys-apps/man-pages-4.14 [4.07]
[ebuild     U  ] sys-apps/diffutils-3.5 [3.3]
[ebuild     U  ] virtual/editor-0-r1 [0]
[ebuild     U  ] sys-devel/make-4.2.1 [4.1-r1]
[ebuild  NS    ] sys-devel/gcc-6.4.0-r1 [4.9.4] USE="cxx fortran nls nptl openmp pch sanitize ssp vtv (-altivec) (-awt) (-cilk) -debug -doc (-fixed-point) (-gcj) -go -graphite (-hardened) (-jit) (-libssp) (-mpx) (-multilib) -objc -objc++ -objc-gc -pgo (-pie) -regression-test -vanilla"
[ebuild  N     ] virtual/libelf-3
[ebuild     U  ] net-misc/iputils-20171016_pre [20151218] USE="arping* openssl%* -nettle%"
[ebuild     U  ] sys-libs/readline-7.0_p3 [6.3_p8-r2]
[ebuild     U  ] net-misc/rsync-3.1.3 [3.1.2] USE="-examples%"
[ebuild     U  ] sys-libs/e2fsprogs-libs-1.43.9 [1.43.3]
[ebuild     U  ] sys-apps/kbd-2.0.4 [2.0.3]
[ebuild     U  ] net-misc/wget-1.19.5 [1.18]
[ebuild     U  ] sys-process/procps-3.3.15-r1 [3.3.12] USE="(-elogind)"
[ebuild     U  ] sys-apps/iproute2-4.14.1-r2 [4.4.0]
[ebuild     U  ] sys-apps/grep-3.0 [2.25]
[ebuild     U  ] sys-apps/util-linux-2.30.2-r1 [2.26.2] USE="readline%* -kill%" PYTHON_SINGLE_TARGET="python3_5%* -python2_7* -python3_6%" PYTHON_TARGETS="python3_5%* -python3_4* -python3_6%"
[ebuild     U  ] app-shells/bash-4.4_p12 [4.3_p48]
[ebuild     U  ] sys-apps/gawk-4.1.4 [4.1.3]
[ebuild     U  ] sys-fs/e2fsprogs-1.43.9 [1.43.3-r1]
[ebuild     U  ] virtual/package-manager-1 [0]
[ebuild     U  ] virtual/dev-manager-0-r1 [0]
[blocks B      ] <sys-apps/sandbox-2.10-r4 ("<sys-apps/sandbox-2.10-r4" is blocking sys-apps/coreutils-8.28-r1)