Помогите разобраться с блокировкой

[ebuild     U  ] sys-apps/hwids-20170328::gentoo [20150717-r1::gentoo] USE="net pci udev usb" 2 002 KiB
[ebuild     U  ] virtual/perl-Encode-2.800.100_rc::gentoo [2.730.0-r1::gentoo] 0 KiB
[uninstall     ] perl-core/Encode-2.730.0::gentoo 
[blocks b      ] <perl-core/Encode-2.800.100_rc ("<perl-core/Encode-2.800.100_rc" is blocking virtual/perl-Encode-2.800.100_rc)
Total: 49 packages (44 upgrades, 1 new, 2 in new slots, 2 reinstalls, 1 uninstall), Size of downloads: 222 855 KiB
Conflict: 1 block
!!! Multiple package instances within a single package slot have been pulled
!!! into the dependency graph, resulting in a slot conflict:
dev-lang/perl:0
  (dev-lang/perl-5.24.1-r1:0/5.24::gentoo, ebuild scheduled for merge) pulled in by
    =dev-lang/perl-5.24* required by (virtual/perl-MIME-Base64-3.150.0-r2:0/0::gentoo, installed)
    ^              ^^^^^                                                                                                                                
    (and 20 more with the same problem)
  (dev-lang/perl-5.22.3_rc4:0/5.22::gentoo, installed) pulled in by
    dev-lang/perl:0/5.22= required by (virtual/perl-Exporter-5.720.0-r2:0/0::gentoo, installed)
                 ^^^^^^^^                                                                                                          
    (and 46 more with the same problem)
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.

mail ~ # qlist -CI dev-lang/perl |xargs emerge
Calculating dependencies... done!
[ebuild     U  ] dev-lang/perl-5.24.1-r1 [5.22.3_rc4]
!!! Multiple package instances within a single package slot have been pulled
!!! into the dependency graph, resulting in a slot conflict:
dev-lang/perl:0
  (dev-lang/perl-5.24.1-r1:0/5.24::gentoo, ebuild scheduled for merge) pulled in by
    =dev-lang/perl-5.24.1* required by (virtual/perl-Sys-Syslog-0.330.100_rc-r1:0/0::gentoo, installed)
    ^              ^^^^^^^                                                                                                                                    
    dev-lang/perl (Argument)
    (and 7 more with the same problems)
  (dev-lang/perl-5.22.3_rc4:0/5.22::gentoo, installed) pulled in by
    =dev-lang/perl-5.22* required by (virtual/perl-Time-HiRes-1.972.600-r4:0/0::gentoo, installed)
    ^              ^^^^^                                                                                                                                 
    dev-lang/perl:0/5.22= required by (virtual/perl-Data-Dumper-2.158.0-r1:0/0::gentoo, installed)
                 ^^^^^^^^                                                                                                             
    (and 71 more with the same problems)
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.

Почему-то он не видит, что ему нужно переустановить обратные зависимости перла. Попробуйте, может, так увидит:
emerge -avuND --backtrack=9999 world