evolution-calendar-factory crashed with SIGSEGV in g_cclosure_marshal_VOID__BOXEDv()

This crash was reported on startup; I've got no idea when it was triggered, or what triggered it.

Here's hoping for a nice retrace!

ProblemType: Crash
DistroRelease: Ubuntu 12.10
Package: evolution-data-server 3.4.3-1
ProcVersionSignature: Ubuntu 3.5.0-1.1-generic 3.5.0-rc3
Uname: Linux 3.5.0-1-generic x86_64
ApportVersion: 2.2.3-0ubuntu6
Architecture: amd64
Date: Thu Jun 21 10:23:15 2012
EcryptfsInUse: Yes
ExecutablePath: /usr/lib/evolution/evolution-calendar-factory
InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Alpha amd64 (20120521)
ProcCmdline: /usr/lib/evolution/evolution-calendar-factory
SegvAnalysis:
 Segfault happened at: 0x7fc9ad12896e: mov 0x8(%rax),%rdi
 PC (0x7fc9ad12896e) ok
 source "0x8(%rax)" (0xaaaaaaaaaaaaaab2) not located in a known VMA region (needed readable region)!
 destination "%rdi" ok
SegvReason: reading unknown VMA
Signal: 11
SourcePackage: evolution-data-server
StacktraceTop:
 ?? () from /usr/lib/evolution-data-server/calendar-backends/libecalbackendcontacts.so
 g_cclosure_marshal_VOID__BOXEDv () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
 ?? () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
 g_signal_emit_valist () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
 g_signal_emit () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
Title: evolution-calendar-factory crashed with SIGSEGV in g_cclosure_marshal_VOID__BOXEDv()
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sbuild sudo