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Bug 545054 - dev-perl/Readonly-2.0.0 :Parse::CPAN::Meta version 1.4414 required--this is only version 1.4409
Summary: dev-perl/Readonly-2.0.0 :Parse::CPAN::Meta version 1.4414 required--this is o...
Status: RESOLVED FIXED
Alias: None
Product: Gentoo Linux
Classification: Unclassified
Component: [OLD] Development (show other bugs)
Hardware: All Linux
: Normal normal (vote)
Assignee: Gentoo Perl team
URL:
Whiteboard:
Keywords:
Depends on:
Blocks:
 
Reported: 2015-03-30 11:55 UTC by Toralf Förster
Modified: 2015-04-19 17:44 UTC (History)
0 users

See Also:
Package list:
Runtime testing required: ---


Attachments
perl-report.sh (report.sh,214 bytes, application/x-shellscript)
2015-03-30 13:27 UTC, Kent Fredric (IRC: kent\n) (RETIRED)
Details
p (r.txt,17.65 KB, text/plain)
2015-03-30 13:30 UTC, Toralf Förster
Details

Note You need to log in before you can comment on or make changes to this bug.
Description Toralf Förster gentoo-dev 2015-03-30 11:55:58 UTC
Shouldn't ths check made in DEPEND ?





>>> Jobs: 7 of 13 complete                          Load avg: 6.30, 6.39, 6.41
>>> Jobs: 7 of 13 complete, 1 running               Load avg: 6.30, 6.39, 6.41
>>> Emerging (8 of 13) dev-perl/Test-Exception-0.320.0-r1::gentoo
>>> Jobs: 7 of 13 complete, 1 running               Load avg: 6.30, 6.39, 6.41
>>> Installing (8 of 13) dev-perl/Test-Exception-0.320.0-r1::gentoo
>>> Jobs: 7 of 13 complete, 1 running               Load avg: 6.28, 6.38, 6.41
>>> Jobs: 7 of 13 complete                          Load avg: 6.34, 6.39, 6.41
>>> Jobs: 8 of 13 complete                          Load avg: 6.36, 6.40, 6.41
>>> Jobs: 8 of 13 complete, 1 running               Load avg: 6.36, 6.40, 6.41
>>> Emerging (9 of 13) dev-perl/Readonly-2.0.0::gentoo
>>> Jobs: 8 of 13 complete, 1 running               Load avg: 6.36, 6.40, 6.41
>>> Failed to emerge dev-perl/Readonly-2.0.0, Log file:
>>> Jobs: 8 of 13 complete, 1 running               Load avg: 6.36, 6.40, 6.41
>>>  '/var/log/portage/dev-perl:Readonly-2.0.0:20150329-214609.log'
>>> Jobs: 8 of 13 complete, 1 running               Load avg: 6.36, 6.40, 6.41
>>> Jobs: 8 of 13 complete, 1 running, 1 failed     Load avg: 6.36, 6.40, 6.41
>>> Jobs: 8 of 13 complete, 1 failed                Load avg: 6.36, 6.40, 6.41

 * Package:    dev-perl/Readonly-2.0.0
 * Repository: gentoo
 * Maintainer: perl@gentoo.org
 * USE:        abi_x86_64 amd64 elibc_glibc kernel_linux userland_GNU
 * FEATURES:   preserve-libs sandbox userpriv usersandbox
>>> Unpacking source...
>>> Unpacking Readonly-2.00.tar.gz to /var/tmp/portage/dev-perl/Readonly-2.0.0/work
>>> Source unpacked in /var/tmp/portage/dev-perl/Readonly-2.0.0/work
>>> Preparing source in /var/tmp/portage/dev-perl/Readonly-2.0.0/work/Readonly-2.00 ...
>>> Source prepared.
>>> Configuring source in /var/tmp/portage/dev-perl/Readonly-2.0.0/work/Readonly-2.00 ...
 * Using Module::Build
 * perl Build.PL --installdirs=vendor --libdoc= --destdir=/var/tmp/portage/dev-perl/Readonly-2.0.0/image/ --create_packlist=0
Parse::CPAN::Meta version 1.4414 required--this is only version 1.4409 at /usr/lib64/perl5/vendor_perl/5.20.1/CPAN/Meta.pm line 60.
BEGIN failed--compilation aborted at /usr/lib64/perl5/vendor_perl/5.20.1/CPAN/Meta.pm line 60.
Compilation failed in require at Build.PL line 15.
BEGIN failed--compilation aborted at Build.PL line 15.
 * ERROR: dev-perl/Readonly-2.0.0::gentoo failed (configure phase):
 *   Unable to build!
 * 
 * Call stack:
 *     ebuild.sh, line   93:  Called src_configure
 *   environment, line 2468:  Called perl-module_src_configure
 *   environment, line 2060:  Called die
 * The specific snippet of code:
 *           perl Build.PL "$@" <<< "${pm_echovar}" || die "Unable to build!";
 * 
 * If you need support, post the output of `emerge --info '=dev-perl/Readonly-2.0.0::gentoo'`,
 * the complete build log and the output of `emerge -pqv '=dev-perl/Readonly-2.0.0::gentoo'`.
 * The complete build log is located at '/var/log/portage/dev-perl:Readonly-2.0.0:20150329-214609.log'.
 * For convenience, a symlink to the build log is located at '/var/tmp/portage/dev-perl/Readonly-2.0.0/temp/build.log'.
 * The ebuild environment file is located at '/var/tmp/portage/dev-perl/Readonly-2.0.0/temp/environment'.
 * Working directory: '/var/tmp/portage/dev-perl/Readonly-2.0.0/work/Readonly-2.00'
 * S: '/var/tmp/portage/dev-perl/Readonly-2.0.0/work/Readonly-2.00'

 * GNU info directory index is up-to-date.

!!! existing preserved libs:
>>> package: net-libs/enet-1.2.2
 *  - /usr/lib64/libenet.so.0
 *  - /usr/lib64/libenet.so.0.0.0
 *      used by /usr/games/bin/egoboo (games-rpg/egoboo-2.8.1)
>>> package: sys-cluster/torque-4.2.9-r2
 *  - /usr/lib64/libtorque.so.2
 *  - /usr/lib64/libtorque.so.2.0.0
 *      used by /usr/lib64/python2.7/site-packages/pbs/_pbs.so (sys-cluster/pbs-python-4.3.3-r1)
Use emerge @preserved-rebuild to rebuild packages using these libraries
quick search: https://bugs.gentoo.org/buglist.cgi?quicksearch=dev-perl%2FReadonly

This is an amd64 unstable chroot image at a hardened host acting as a tinderbox.

Portage 2.2.14 (python 2.7.9-final-0, default/linux/amd64/13.0/desktop/kde, gcc-4.8.3, glibc-2.20-r2, 3.19.3-hardened x86_64)
=================================================================
System uname: Linux-3.19.3-hardened-x86_64-Intel-R-_Core-TM-_i7-3770_CPU_@_3.40GHz-with-gentoo-2.2
KiB Mem:    16164756 total,   1498400 free
KiB Swap:   16777212 total,  16717864 free
Timestamp of tree: Sun, 29 Mar 2015 16:30:01 +0000
ld GNU ld (Gentoo 2.24 p1.4) 2.24
ccache version 3.2.1 [disabled]
app-shells/bash:          4.2_p53
dev-java/java-config:     2.2.0
dev-lang/perl:            5.20.1-r4
dev-lang/python:          2.7.9-r2, 3.3.5-r1
dev-util/ccache:          3.2.1-r1
dev-util/cmake:           3.1.0
dev-util/pkgconfig:       0.28-r1
sys-apps/baselayout:      2.2
sys-apps/openrc:          0.13.11
sys-apps/sandbox:         2.6-r1
sys-devel/autoconf:       2.13, 2.69
sys-devel/automake:       1.9.6-r4, 1.10.3-r1, 1.11.6-r1, 1.12.6, 1.13.4
sys-devel/binutils:       2.24-r3
sys-devel/gcc:            4.8.3
sys-devel/gcc-config:     1.7.3
sys-devel/libtool:        2.4.6-r1
sys-devel/make:           4.1-r1
sys-kernel/linux-headers: 3.18 (virtual/os-headers)
sys-libs/glibc:           2.20-r2
Repositories: gentoo
ACCEPT_KEYWORDS="amd64 ~amd64"
ACCEPT_LICENSE="*"
CBUILD="x86_64-pc-linux-gnu"
CFLAGS="-march=native -O2 -pipe"
CHOST="x86_64-pc-linux-gnu"
CONFIG_PROTECT="/etc /etc/entropy /usr/share/config /usr/share/gnupg/qualified.txt /var/lib/hsqldb /var/lib/i2pd/certificates"
CONFIG_PROTECT_MASK="/etc/ca-certificates.conf /etc/dconf /etc/env.d /etc/fonts/fonts.conf /etc/gconf /etc/gentoo-release /etc/php/apache2-php5.5/ext-active/ /etc/php/cgi-php5.5/ext-active/ /etc/php/cli-php5.5/ext-active/ /etc/revdep-rebuild /etc/sandbox.d /etc/terminfo"
CXXFLAGS="-march=native -O2 -pipe"
DISTDIR="/var/tmp/distfiles"
EMERGE_DEFAULT_OPTS="--nospinner --tree --quiet-build --jobs 1"
FCFLAGS="-O2 -pipe"
FEATURES="assume-digests binpkg-logs config-protect-if-modified distlocks ebuild-locks fixlafiles merge-sync news parallel-fetch preserve-libs protect-owned sandbox sfperms strict unknown-features-warn unmerge-logs unmerge-orphans userfetch userpriv usersandbox usersync"
FFLAGS="-O2 -pipe"
GENTOO_MIRRORS="http://ftp.uni-erlangen.de/pub/mirrors/gentoo rsync://mirror.netcologne.de/gentoo/ ftp://sunsite.informatik.rwth-aachen.de/pub/Linux/gor.bytemark.co.uk/gentoo/ rsync://ftp.snt.utwente.nl/gentoo"
LANG="en_US.utf8"
LDFLAGS="-Wl,-O1 -Wl,--as-needed"
MAKEOPTS="-j1"
PKGDIR="/usr/portage/packages"
PORTAGE_CONFIGROOT="/"
PORTAGE_RSYNC_OPTS="--recursive --links --safe-links --perms --times --omit-dir-times --compress --force --whole-file --delete --stats --human-readable --timeout=180 --exclude=/distfiles --exclude=/local --exclude=/packages"
PORTAGE_TMPDIR="/var/tmp"
PORTDIR="/usr/portage"
PORTDIR_OVERLAY=""
USE="X a52 aac acl acpi aes-ni alsa amd64 apache2 avx avx2 berkdb bluetooth branding bzip2 cairo cdda cdr cli consolekit corefonts cracklib crypt cups cxx dbus declarative dnssec dot dri drmkms dts dvd dvdr ecc emboss encode exif extraengine fam ffmpeg firefox flac fontconfig fortran fpm gd gdbm gif glamor gpm gtk gudev gui iconv icu isag jadetex jpeg kde kipi kvm lapack lcms libav libkms libnotify libvirtd logrotate mad mbox minizip mmx mmxext mng modules mp3 mp4 mpeg multilib mysql ncurses nls nptl ogg opengl openmp openssl pam pango pax_kernel pcre pcre16 pdf phonon plasma png policykit ppds python qemu qt3support qt4 readline sdl session spell spice sqlite sse sse2 sse4 sse4_1 sse4_2 ssh-askpass ssl ssse3 startup-notification svg tcpd theora thinkpad threads tiff tk tls truetype udev udisks uml unicode upower usb usbredir uxa v4l v4l2 video vorbis wxwidgets x264 xa xcb xcomposite xinerama xkb xml xmp xscreensaver xslt xv xvfb xvid xvmc zenmap zlib" ABI_X86="64" ALSA_CARDS="ali5451 als4000 atiixp atiixp-modem bt87x ca0106 cmipci emu10k1x ens1370 ens1371 es1938 es1968 fm801 hda-intel intel8x0 intel8x0m maestro3 trident usb-audio via82xx via82xx-modem ymfpci" APACHE2_MODULES="authn_core authz_core socache_shmcb unixd actions alias auth_basic authn_alias authn_anon authn_dbm authn_default authn_file authz_dbm authz_default authz_groupfile authz_host authz_owner authz_user autoindex cache cgi cgid dav dav_fs dav_lock deflate dir disk_cache env expires ext_filter file_cache filter headers include info log_config logio mem_cache mime mime_magic negotiation rewrite setenvif speling status unique_id userdir usertrack vhost_alias" CALLIGRA_FEATURES="kexi words flow plan sheets stage tables krita karbon braindump author" CAMERAS="ptp2" COLLECTD_PLUGINS="df interface irq load memory rrdtool swap syslog" CPU_FLAGS_X86="aes avx mmx mmxext popcnt sse sse2 sse3 sse4_1 sse4_2 ssse3" ELIBC="glibc" GPSD_PROTOCOLS="ashtech aivdm earthmate evermore fv18 garmin garmintxt gpsclock itrax mtk3301 nmea ntrip navcom oceanserver oldstyl e oncore rtcm104v2 rtcm104v3 sirf superstar2 timing tsip tripmate tnt ublox ubx" INPUT_DEVICES="keyboard mouse evdev" KERNEL="linux" LCD_DEVICES="bayrad cfontz cfontz633 glk hd44780 lb216 lcdm001 mtxorb ncurses text" LIBREOFFICE_EXTENSIONS="presenter-console presenter-minimizer" LINGUAS="en en_GB" OFFICE_IMPLEMENTATION="libreoffice" PHP_TARGETS="php5-5" PYTHON_SINGLE_TARGET="python2_7" PYTHON_TARGETS="python2_7 python3_3" RUBY_TARGETS="ruby19 ruby20" USERLAND="GNU" VIDEO_CARDS="fbdev glint intel mach64 mga nouveau nv r128 radeon savage sis tdfx trident vesa via vmware dummy v4l" XTABLES_ADDONS="quota2 psd pknock lscan length2 ipv4options ipset ipp2p iface geoip fuzzy condition tee tarpit sysrq steal rawnat logmark ipmark dhcpmac delude chaos account"
Unset:  CPPFLAGS, CTARGET, INSTALL_MASK, LC_ALL, PORTAGE_BUNZIP2_COMMAND, PORTAGE_COMPRESS, PORTAGE_COMPRESS_FLAGS, PORTAGE_RSYNC_EXTRA_OPTS, SYNC, USE_PYTHON
Comment 1 Kent Fredric (IRC: kent\n) (RETIRED) gentoo-dev 2015-03-30 12:31:36 UTC
Its not an issue with Readonly.

Readonly only needs to say "yes man, I have Module::Build."

And does so.

        >=virtual/perl-Module-Build-0.380.0


However, the nature of the bug you have encountered indicates that your Module::Build installation is somehow broken.

> Parse::CPAN::Meta version 1.4414 required--this is only version 1.4409 at /usr/lib64/perl5/vendor_perl/5.20.1/CPAN/Meta.pm line 60. 


That is this line of code: 

https://metacpan.org/source/DAGOLDEN/CPAN-Meta-2.140640/lib/CPAN/Meta.pm#L60 

That line of code is: 

> use Parse::CPAN::Meta 1.4414 ();

That code is in the dist CPAN-Meta

That dist is part of perl.

> corelist -a CPAN::Meta | grep 5.20.1
>   v5.20.1    2.140640

The version of Parse-CPAN-Meta that shipped with 5.20.1 is

> corelist -a Parse::CPAN::Meta | grep 5.20.1
>   v5.20.1    1.4414


Which means you, again, have perl-core/<THING> installed when it shouldn't be.

please report if `emerge -vat1ND virtual/perl-Module-Build` triggers any rebuilds, or uninstalls.

It should.
Comment 2 Kent Fredric (IRC: kent\n) (RETIRED) gentoo-dev 2015-03-30 12:54:52 UTC
Just to clarify: Every time you see this specific error, it is not an error in the ebuild you are installing  ( There may be some exceptions, but no real exceptions have been given so far )


Because you should be able to replicate this failure with a simple:

   perl -MCPAN::Meta -E1

inside your chroot, and have it die the same way.

And every time that command does in fact die the same way, then that says "CPAN-Meta is incorrectly installed", and is a duplicate of the same bug.


( Which is ultimately a result of portage having not yet tracked down dependencies ).


The _best_ explanation I have today for this bug is possibly that you have virtual/perl-CPAN-Meta-2.140.600 installed.

I theorise, if that is the case, portage will be lazy, and believe that virtual is satisfied.

And I believe that virtual should stipulate: 

  >=virtual/perl-Parse-CPAN-Meta-1.441.400 

It really shouldn't be necessary, but that's the simplest explanation I have left for why you keep hitting this bug ( and I reiterate, its the same bug multiple times, so apologies for my frustration, but it aught to have been the same bug, and it should have been re-opened/closed every time you re-experienced it. Because Readonly rather has no relevance to this bug other than the fact it uses something that uses something, and that something is broken. )
Comment 3 Toralf Förster gentoo-dev 2015-03-30 13:09:49 UTC
Understood.

I'm fiddling since a while to catch this type at my tinderbox to avoid annoying you and others too much.

Sometimes I'm just not sure if an issue falls into this category or not.
Comment 4 Kent Fredric (IRC: kent\n) (RETIRED) gentoo-dev 2015-03-30 13:15:26 UTC
The frustration is sadly compounded by the fact emerge --info gives us absolutely nothing to work with, and the versions and install statues of various virtuals/perl-core* things are far more useful, and to make meaningful conclusions we need to know those things _at_ the time of the failure to work out why they happened.

And so giving us the "Readonly" datapoint + emerge info essentially gives us two lots of useless information, and we have to make very educated guesses about what we /think/ might be happening on your box, which could easily be different from what /is/ happening on your box.
Comment 5 Kent Fredric (IRC: kent\n) (RETIRED) gentoo-dev 2015-03-30 13:27:41 UTC
Created attachment 400162 [details]
perl-report.sh

I'm attaching a find/sort command that I'd like you to consider using to generate a listing to attach in future reports like this, assuming we don't fix it ASAP so we can get a better idea of what the system state looks like at the time of failure, simply reporting var/db entries.

_hopefully_ that will give us some indication as to what is going wrong.
Comment 6 Toralf Förster gentoo-dev 2015-03-30 13:30:42 UTC
Created attachment 400164 [details]
p

(In reply to Kent Fredric from comment #1)

> please report if `emerge -vat1ND virtual/perl-Module-Build` triggers any
> rebuilds, or uninstalls.
> 
> It should.
A lot - bot no perl is among them
Comment 7 Andreas K. Hüttel archtester gentoo-dev 2015-03-30 22:44:27 UTC
This shouldnt really happen. But if it increases my karma...

  30 Mar 2015; Andreas K. Huettel <dilfridge@gentoo.org>
  perl-CPAN-Meta-2.140.640.ebuild:
  Add dependency on recent enough Parse::CPAN::Meta, bug 545054
Comment 8 Toralf Förster gentoo-dev 2015-04-11 16:44:35 UTC
(In reply to Andreas K. Hüttel from comment #7)
> This shouldnt really happen. But if it increases my karma...
> 
>   30 Mar 2015; Andreas K. Huettel <dilfridge@gentoo.org>
>   perl-CPAN-Meta-2.140.640.ebuild:
>   Add dependency on recent enough Parse::CPAN::Meta, bug 545054

Today I run with another fresh chroot tinderbox image into a similar thing I fear :



>>> Jobs: 13 of 25 complete, 1 running              Load avg: 5.04, 5.22, 5.45
>>> Installing (14 of 25) dev-perl/Module-Implementation-0.60.0-r1::gentoo
>>> Jobs: 13 of 25 complete, 1 running              Load avg: 5.04, 5.22, 5.44
>>> Jobs: 13 of 25 complete                         Load avg: 5.04, 5.22, 5.44
>>> Jobs: 14 of 25 complete                         Load avg: 5.11, 5.23, 5.45
>>> Jobs: 14 of 25 complete, 1 running              Load avg: 5.11, 5.23, 5.45
>>> Emerging (15 of 25) virtual/perl-Attribute-Handlers-0.960.0::gentoo
>>> Jobs: 14 of 25 complete, 1 running              Load avg: 5.11, 5.23, 5.45
>>> Installing (15 of 25) virtual/perl-Attribute-Handlers-0.960.0::gentoo
>>> Jobs: 14 of 25 complete, 1 running              Load avg: 5.11, 5.23, 5.45
>>> Jobs: 14 of 25 complete                         Load avg: 5.11, 5.23, 5.45
>>> Jobs: 15 of 25 complete                         Load avg: 5.10, 5.22, 5.44
>>> Jobs: 15 of 25 complete, 1 running              Load avg: 5.10, 5.22, 5.44
>>> Emerging (16 of 25) dev-perl/Params-Validate-1.80.0::gentoo
>>> Jobs: 15 of 25 complete, 1 running              Load avg: 5.10, 5.22, 5.44
>>> Installing (16 of 25) dev-perl/Params-Validate-1.80.0::gentoo
>>> Jobs: 15 of 25 complete, 1 running              Load avg: 5.10, 5.22, 5.44
>>> Jobs: 15 of 25 complete                         Load avg: 5.10, 5.22, 5.44
>>> Jobs: 16 of 25 complete                         Load avg: 5.09, 5.22, 5.44
>>> Jobs: 16 of 25 complete, 1 running              Load avg: 5.09, 5.22, 5.44
>>> Emerging (17 of 25) dev-perl/Readonly-2.0.0::gentoo
>>> Jobs: 16 of 25 complete, 1 running              Load avg: 5.09, 5.22, 5.44
>>> Failed to emerge dev-perl/Readonly-2.0.0, Log file:
>>> Jobs: 16 of 25 complete, 1 running              Load avg: 5.09, 5.22, 5.44
>>>  '/var/log/portage/dev-perl:Readonly-2.0.0:20150411-162804.log'
>>> Jobs: 16 of 25 complete, 1 running              Load avg: 5.09, 5.22, 5.44
>>> Jobs: 16 of 25 complete, 1 running, 1 failed    Load avg: 5.09, 5.22, 5.44
>>> Jobs: 16 of 25 complete, 1 failed               Load avg: 5.09, 5.22, 5.44

 * Package:    dev-perl/Readonly-2.0.0
 * Repository: gentoo
 * Maintainer: perl@gentoo.org
 * USE:        abi_x86_64 amd64 elibc_glibc kernel_linux userland_GNU
 * FEATURES:   preserve-libs sandbox userpriv usersandbox
>>> Unpacking source...
>>> Unpacking Readonly-2.00.tar.gz to /var/tmp/portage/dev-perl/Readonly-2.0.0/work
>>> Source unpacked in /var/tmp/portage/dev-perl/Readonly-2.0.0/work
>>> Preparing source in /var/tmp/portage/dev-perl/Readonly-2.0.0/work/Readonly-2.00 ...
>>> Source prepared.
>>> Configuring source in /var/tmp/portage/dev-perl/Readonly-2.0.0/work/Readonly-2.00 ...
 * Using Module::Build
 * perl Build.PL --installdirs=vendor --libdoc= --destdir=/var/tmp/portage/dev-perl/Readonly-2.0.0/image/ --create_packlist=0
Parse::CPAN::Meta version 1.4414 required--this is only version 1.4409 at /usr/lib64/perl5/vendor_perl/5.20.2/CPAN/Meta.pm line 60.
BEGIN failed--compilation aborted at /usr/lib64/perl5/vendor_perl/5.20.2/CPAN/Meta.pm line 60.
Compilation failed in require at Build.PL line 15.
BEGIN failed--compilation aborted at Build.PL line 15.
 * ERROR: dev-perl/Readonly-2.0.0::gentoo failed (configure phase):
 *   Unable to build!
 * 
 * Call stack:
 *     ebuild.sh, line   93:  Called src_configure
 *   environment, line 2440:  Called perl-module_src_configure
 *   environment, line 2032:  Called die
 * The specific snippet of code:
 *           perl Build.PL "$@" <<< "${pm_echovar}" || die "Unable to build!";
 * 
 * If you need support, post the output of `emerge --info '=dev-perl/Readonly-2.0.0::gentoo'`,
 * the complete build log and the output of `emerge -pqv '=dev-perl/Readonly-2.0.0::gentoo'`.
 * The complete build log is located at '/var/log/portage/dev-perl:Readonly-2.0.0:20150411-162804.log'.
 * For convenience, a symlink to the build log is located at '/var/tmp/portage/dev-perl/Readonly-2.0.0/temp/build.log'.
 * The ebuild environment file is located at '/var/tmp/portage/dev-perl/Readonly-2.0.0/temp/environment'.
 * Working directory: '/var/tmp/portage/dev-perl/Readonly-2.0.0/work/Readonly-2.00'
 * S: '/var/tmp/portage/dev-perl/Readonly-2.0.0/work/Readonly-2.00'

 * GNU info directory index is up-to-date.

The log is stored in /var/log/portage/_emerge_20150411-182805.log.
quick search: https://bugs.gentoo.org/buglist.cgi?quicksearch=dev-perl%2FReadonly
maintainer : 
herd       : perl

This is an unstable amd64 chroot image (named amd64-unstable-libtool_20150410) at a hardened host acting as a tinderbox.

Portage 2.2.14 (python 2.7.9-final-0, default/linux/amd64/13.0/desktop/kde, gcc-4.8.4, glibc-2.20-r2, 3.19.3-hardened-r1 x86_64)
=================================================================
System uname: Linux-3.19.3-hardened-r1-x86_64-Intel-R-_Core-TM-_i7-3770_CPU_@_3.40GHz-with-gentoo-2.2
KiB Mem:    16164756 total,   3272496 free
KiB Swap:   16777212 total,  16746744 free
Timestamp of tree: Sat, 11 Apr 2015 14:00:01 +0000
ld GNU ld (Gentoo 2.24 p1.4) 2.24
app-shells/bash:          4.2_p53
dev-lang/perl:            5.20.2
dev-lang/python:          2.7.9-r2, 3.3.5-r1
dev-util/pkgconfig:       0.28-r2
sys-apps/baselayout:      2.2
sys-apps/openrc:          0.13.11
sys-apps/sandbox:         2.6-r1
sys-devel/autoconf:       2.13, 2.69
sys-devel/automake:       1.9.6-r4, 1.11.6-r1, 1.13.4
sys-devel/binutils:       2.24-r3
sys-devel/gcc:            4.8.4
sys-devel/gcc-config:     1.8
sys-devel/libtool:        2.4.6-r1
sys-devel/make:           4.1-r1
sys-kernel/linux-headers: 3.18 (virtual/os-headers)
sys-libs/glibc:           2.20-r2
Repositories: gentoo
ACCEPT_KEYWORDS="amd64 ~amd64"
ACCEPT_LICENSE="*"
CBUILD="x86_64-pc-linux-gnu"
CFLAGS="-march=native -O2 -pipe"
CHOST="x86_64-pc-linux-gnu"
CONFIG_PROTECT="/etc /var/spool/torque"
CONFIG_PROTECT_MASK="/etc/ca-certificates.conf /etc/env.d /etc/fonts/fonts.conf /etc/gconf /etc/gentoo-release /etc/revdep-rebuild /etc/sandbox.d /etc/terminfo"
CXXFLAGS="-march=native -O2 -pipe"
DISTDIR="/var/tmp/distfiles"
EMERGE_DEFAULT_OPTS="--nospinner --tree --quiet-build --jobs 1"
FCFLAGS="-O2 -pipe"
FEATURES="assume-digests binpkg-logs config-protect-if-modified distlocks ebuild-locks fixlafiles merge-sync news parallel-fetch preserve-libs protect-owned sandbox sfperms strict unknown-features-warn unmerge-logs unmerge-orphans userfetch userpriv usersandbox usersync"
FFLAGS="-O2 -pipe"
GENTOO_MIRRORS="http://ftp.uni-erlangen.de/pub/mirrors/gentoo rsync://mirror.netcologne.de/gentoo/ ftp://sunsite.informatik.rwth-aachen.de/pub/Linux/gor.bytemark.co.uk/gentoo/ rsync://ftp.snt.utwente.nl/gentoo"
LANG="en_US.utf8"
LDFLAGS="-Wl,-O1 -Wl,--as-needed"
MAKEOPTS="-j1"
PKGDIR="/usr/portage/packages"
PORTAGE_CONFIGROOT="/"
PORTAGE_RSYNC_OPTS="--recursive --links --safe-links --perms --times --omit-dir-times --compress --force --whole-file --delete --stats --human-readable --timeout=180 --exclude=/distfiles --exclude=/local --exclude=/packages"
PORTAGE_TMPDIR="/var/tmp"
PORTDIR="/usr/portage"
PORTDIR_OVERLAY=""
USE="X a52 aac acl acpi aes-ni alsa amd64 apache2 avx avx2 berkdb bluetooth branding bzip2 cairo cdda cdr cli consolekit corefonts cracklib crypt cups cxx dbus declarative designer dnssec dot dri drmkms dts dvd dvdr ecc emboss encode exif extraengine fam ffmpeg firefox flac fontconfig fortran fpm gd gdbm gif glamor gpm gtk gudev gui iconv icu isag jadetex jpeg kde kipi kvm lapack lcms libav libkms libnotify libvirtd logrotate mad mbox minizip mmx mmxext mng modules mp3 mp4 mpeg multilib mysql ncurses nls nptl ogg opengl openmp openssl pam pango pax_kernel pcre pcre16 pdf phonon plasma png policykit ppds python qemu qt3support qt4 readline scrpyt sdl session spell spice sqlite sse sse2 sse4 sse4_1 sse4_2 ssh-askpass ssl ssse3 startup-notification svg tcpd theora thinkpad threads tiff tk tls truetype udev udisks uml unicode upower usb usbredir uxa v4l v4l2 video vorbis wxwidgets x264 xa xcb xcomposite xinerama xkb xml xmp xscreensaver xslt xv xvfb xvid xvmc zenmap zlib" ABI_X86="64" ALSA_CARDS="ali5451 als4000 atiixp atiixp-modem bt87x ca0106 cmipci emu10k1x ens1370 ens1371 es1938 es1968 fm801 hda-intel intel8x0 intel8x0m maestro3 trident usb-audio via82xx via82xx-modem ymfpci" APACHE2_MODULES="authn_core authz_core socache_shmcb unixd actions alias auth_basic authn_alias authn_anon authn_dbm authn_default authn_file authz_dbm authz_default authz_groupfile authz_host authz_owner authz_user autoindex cache cgi cgid dav dav_fs dav_lock deflate dir disk_cache env expires ext_filter file_cache filter headers include info log_config logio mem_cache mime mime_magic negotiation rewrite setenvif speling status unique_id userdir usertrack vhost_alias" CALLIGRA_FEATURES="kexi words flow plan sheets stage tables krita karbon braindump author" CAMERAS="ptp2" COLLECTD_PLUGINS="df interface irq load memory rrdtool swap syslog" CPU_FLAGS_X86="aes avx mmx mmxext popcnt sse sse2 sse3 sse4_1 sse4_2 ssse3" ELIBC="glibc" GPSD_PROTOCOLS="ashtech aivdm earthmate evermore fv18 garmin garmintxt gpsclock itrax mtk3301 nmea ntrip navcom oce anserver oldstyle oncore rtcm104v2 rtcm104v3 sirf superstar2 timing tsip tripmate tnt ublox ubx" INPUT_DEVICES="keyboard mouse evdev" KERNEL="linux" LCD_DEVICES="bayrad cfontz cfontz633 glk hd44780 lb216 lcdm001 mtxorb ncurses text" LIBREOFFICE_EXTENSIONS="presenter-console presenter-minimizer" LINGUAS="en en_GB" OFFICE_IMPLEMENTATION="libreoffice" PHP_TARGETS="php5-5" PYTHON_SINGLE_TARGET="python2_7" PYTHON_TARGETS="python2_7 python3_3" RUBY_TARGETS="ruby19 ruby20" USERLAND="GNU" VIDEO_CARDS="fbdev glint intel mach64 mga nouveau nv r128 radeon savage sis tdfx trident vesa via vmware dummy v4l" XTABLES_ADDONS="quota2 psd pknock lscan length2 ipv4options ipset ipp2p iface geoip fuzzy condition tee tarpit sysrq steal rawnat logmark ipmark dhcpmac delude chaos account"
Unset:  CPPFLAGS, CTARGET, INSTALL_MASK, LC_ALL, PORTAGE_BUNZIP2_COMMAND, PORTAGE_COMPRESS, PORTAGE_COMPRESS_FLAGS, PORTAGE_RSYNC_EXTRA_OPTS, SYNC, USE_PYTHON

1428676356.5523290730 /var/db/pkg/dev-lang/perl-5.20.2
1428676356.8283303800 /var/db/pkg/virtual/perl-Test-Simple-1.1.2
1428676356.8293303850 /var/db/pkg/virtual/perl-ExtUtils-CBuilder-0.280.217-r1
1428676356.8373304220 /var/db/pkg/virtual/perl-Perl-OSType-1.7.0
1428676356.8463304650 /var/db/pkg/virtual/perl-ExtUtils-Install-1.670.0
1428676356.8493304790 /var/db/pkg/virtual/perl-File-Spec-3.480.100-r1
1428676356.8533304980 /var/db/pkg/virtual/perl-Archive-Tar-1.960.0
1428676356.8613305360 /var/db/pkg/virtual/perl-Test-Harness-3.330.0
1428676356.8623305410 /var/db/pkg/virtual/perl-Text-ParseWords-3.290.0-r1
1428676356.8653305550 /var/db/pkg/virtual/perl-JSON-PP-2.272.30
1428676356.8693305740 /var/db/pkg/virtual/perl-Getopt-Long-2.420.0-r1
1428676356.8703305790 /var/db/pkg/virtual/perl-File-Temp-0.230.400-r2
1428676356.8753306020 /var/db/pkg/virtual/perl-CPAN-Meta-YAML-0.12.0
1428676356.8913306780 /var/db/pkg/virtual/perl-version-0.990.900-r1
1428676356.8923306830 /var/db/pkg/virtual/perl-Module-Metadata-1.0.19
1428676356.9073307540 /var/db/pkg/virtual/perl-Module-Build-0.420.500-r1
1428676356.9103307680 /var/db/pkg/virtual/perl-Data-Dumper-2.154.0
1428676356.9863311280 /var/db/pkg/perl-core/File-Temp-0.230.400-r1
1428676356.9903311470 /var/db/pkg/perl-core/Data-Dumper-2.154.0
1428697881.6067178710 /var/db/pkg/virtual/perl-Math-BigRat-0.260.600
1428697884.9747321480 /var/db/pkg/virtual/perl-bignum-0.370.0
1428697888.3627465100 /var/db/pkg/virtual/perl-Math-BigInt-FastCalc-0.310.0
1428697891.7397608260 /var/db/pkg/virtual/perl-Scalar-List-Utils-1.380.0
1428697897.3177844720 /var/db/pkg/perl-core/Math-BigInt-1.999.300
1428700604.3337551740 /var/db/pkg/perl-core/Term-ANSIColor-4.20.0
1428701033.2176669900 /var/db/pkg/virtual/perl-Digest-SHA-5.880.0
1428703607.1806228680 /var/db/pkg/virtual/perl-Compress-Raw-Zlib-2.65.0
1428703618.2996699520 /var/db/pkg/virtual/perl-Time-HiRes-1.972.600-r1
1428704968.8255123380 /var/db/pkg/virtual/perl-IO-1.310.0
1428704973.1675312280 /var/db/pkg/virtual/perl-CPAN-Meta-Requirements-2.125.0-r1
1428704977.3725495230 /var/db/pkg/virtual/perl-ExtUtils-Command-1.180.0-r2
1428704983.8655777720 /var/db/pkg/perl-core/ExtUtils-Manifest-1.700.0
1428704990.3366059250 /var/db/pkg/virtual/perl-ExtUtils-Manifest-1.700.0
1428704997.9016388390 /var/db/pkg/perl-core/ExtUtils-MakeMaker-7.40.0-r1
1428705002.5876592260 /var/db/pkg/virtual/perl-ExtUtils-MakeMaker-7.40.0
1428705018.0637265600 /var/db/pkg/perl-core/CPAN-Meta-2.143.240
1428705024.7207555240 /var/db/pkg/virtual/perl-CPAN-Meta-2.143.240
1428708614.1252796490 /var/db/pkg/virtual/perl-ExtUtils-ParseXS-3.240.0
1428708627.4163368770 /var/db/pkg/perl-core/Module-Build-0.420.500
1428725398.7663979460 /var/db/pkg/virtual/perl-File-Path-2.90.0-r2
1428726811.2158876610 /var/db/pkg/virtual/perl-Storable-2.490.100-r1
1428727515.0656774450 /var/db/pkg/virtual/perl-MIME-Base64-3.140.0-r1
1428727528.5187343800 /var/db/pkg/virtual/perl-Time-Local-1.230.0-r1
1428727593.0200073770 /var/db/pkg/virtual/perl-Compress-Raw-Bzip2-2.64.0
1428727610.3060805450 /var/db/pkg/virtual/perl-IO-Compress-2.64.0
1428727650.2942498140 /var/db/pkg/virtual/perl-Exporter-5.710.0-r1
1428727658.6822853220 /var/db/pkg/perl-core/libnet-1.270.0
1428727665.2033129270 /var/db/pkg/virtual/perl-libnet-1.270.0
1428727671.3433389190 /var/db/pkg/virtual/perl-Digest-MD5-2.530.0-r2
1428727677.3243642390 /var/db/pkg/virtual/perl-Module-Load-0.320.0
1428727759.2227109680 /var/db/pkg/virtual/perl-Encode-2.600.0
1428742661.8751049020 /var/db/pkg/virtual/perl-Digest-1.170.0-r4
1428744225.0043368810 /var/db/pkg/perl-core/Parse-CPAN-Meta-1.440.900-r1
1428747349.1761363950 /var/db/pkg/virtual/perl-Module-CoreList-5.201.502.140-r1
1428748446.1596657180 /var/db/pkg/perl-core/Sys-Syslog-0.330.0-r1
1428765409.9749947710 /var/db/pkg/perl-core/Text-Balanced-2.20.0-r1
1428765663.7590069860 /var/db/pkg/perl-core/Time-Local-1.230.0-r1
1428767593.5280919490 /var/db/pkg/virtual/perl-Params-Check-0.380.0-r1
1428767599.8511199960 /var/db/pkg/virtual/perl-Locale-Maketext-Simple-0.210.0-r5
1428767608.3531577050 /var/db/pkg/perl-core/Module-Load-Conditional-0.580.0
1428769631.1140842440 /var/db/pkg/virtual/perl-XSLoader-0.170.0
1428769638.1331178430 /var/db/pkg/virtual/perl-IPC-Cmd-0.920.0
1428769672.5832826840 /var/db/pkg/virtual/perl-Attribute-Handlers-0.960.0
Comment 9 Kent Fredric (IRC: kent\n) (RETIRED) gentoo-dev 2015-04-11 21:56:04 UTC
Aha!. Now there's a useful trace :D

/var/db/pkg/virtual/perl-CPAN-Meta-2.143.240


RDEPEND="
        ~perl-core/${PN#perl-}-${PV}
        >=virtual/perl-CPAN-Meta-YAML-0.11.0
        >=virtual/perl-JSON-PP-2.271.30
"

^ This should have 

>=virtual/perl-Parse-CPAN-Meta-1.441.400


For some reason the previous version has such a statement. But this version does not.
Comment 10 Patrice Clement gentoo-dev 2015-04-19 17:44:00 UTC
+  19 Apr 2015;  <monsieurp@gentoo.org> perl-CPAN-Meta-2.143.240.ebuild:
+  Add =virtual/perl-Parse-CPAN-Meta-1.441.400 dependency back. Thanks to Kent
+  Fredric <kentfredric@gmail.com> for the patch. Fix bug 545054.
+

Thanks Kent.