dpkg crashed with SIGSEGV in process_archive()

[Frank]

Upgrade Ubuntu 11.04 to 11.10 x86_64
Linux frank-desktop 2.6.38-11-generic #50-Ubuntu SMP Mon Sep 12 21:17:25 UTC 2011 x86_64 x86_64 x86_64 GNU/Linux

It reports python errors, says upgrade fails, but:
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 11.10
Release: 11.10
Codename: oneiric

ProblemType: Crash
DistroRelease: Ubuntu 11.10
Package: dpkg 1.16.0.3ubuntu5
ProcVersionSignature: Ubuntu 2.6.38-11.50-generic 2.6.38.8
Uname: Linux 2.6.38-11-generic x86_64
NonfreeKernelModules: fglrx
ApportVersion: 1.23-0ubuntu3
Architecture: amd64
Date: Mon Oct 17 08:15:32 2011
ExecutablePath: /usr/bin/dpkg
ProcCmdline: /usr/bin/dpkg --force-overwrite --status-fd 41 --unpack --auto-deconfigure /var/cache/apt/archives/libsqlite3-0_3.7.7-2ubuntu2_amd64.deb /var/cache/apt/archives/python-httplib2_0.7.1-1ubuntu1_all.deb /var/cache/apt/archives/python-oauth_1.0.1-3_all.deb /var/cache/apt/archives/python-pkg-resources_0.6.16-1_all.deb /var/cache/apt/archives/python-lazr.uri_1.0.2-5_all.deb /var/cache/apt/archives/python-simplejson_2.1.6-1_amd64.deb /var/cache/apt/archives/python-wadllib_1.2.0+ds-2_all.deb /var/cache/apt/archives/python-zope.interface_3.6.1-1ubuntu2_amd64.deb /var/cache/apt/archives/python-lazr.restfulclient_0.11.2-2ubuntu2_all.deb /var/cache/apt/archives/python-configobj_4.7.2+ds-3_all.deb /var/cache/apt/archives/python-bzrlib_2.4.1-1ubuntu1_amd64.deb /var/cache/apt/archives/python-keyring_0.6.2-1_all.deb /var/cache/apt/archives/python-markupsafe_0.12-2build1_amd64.deb /var/cache/apt/archives/python-mako_0.4.1-2_all.deb /var/cache/apt/archives/python-minimal_2.7.2-7ubuntu2_all.deb
ProcEnviron:
 LANGUAGE=en_US:en
 PATH=(custom, user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
Signal: 11
SourcePackage: dpkg
StacktraceTop:
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Title: dpkg crashed with SIGSEGV
UpgradeStatus: Upgraded to oneiric on 2011-10-17 (0 days ago)
UserGroups:

[Apport retracing service (apport)]

StacktraceTop:
 process_archive (filename=0x7fff3aa86a65 "/var/cache/apt/archives/python-pkg-resources_0.6.16-1_all.deb") at ../../src/processarc.c:1120
 fprintf (__fmt=0x30bf710 "P\367\v\003", __stream=<optimized out>) at /usr/include/x86_64-linux-gnu/bits/stdio2.h:98
 check_conflict (dep=0x7fff3aa85690, pkg=<optimized out>, pfilename=0x0) at ../../src/archives.c:1327
 ?? ()
 ?? ()

[dino99 (9d9)]

That version is no more supported