apport-gtk crashed with SIGSEGV

[ubername]

Possibly something to do with trying to report a crash of easystroke, which has started happening since updates for 16.10 a few days ago

Easystroke build fails, possibly connected to this: from https://bugzilla.redhat.com/show_bug.cgi?id=1302917

(I know it's for redhat but might give some clues)

Before gcc-6.0.0 arrived in rawhide it failed to build because it depends on libsigc++ which now requires C++11, but gcc-6 defaults to C++14 so that is resolved, and it fails with this error instead:

actions.cc: In constructor 'TreeViewMulti::TreeViewMulti()':
actions.cc:57:39: error: 'group' is not a member of 'sigc'
  get_selection()->set_select_function(sigc::group(&negate, sigc::ref(pending)));
                                       ^~~~

ProblemType: Crash
DistroRelease: Ubuntu 16.10
Package: apport-gtk 2.20.3-0ubuntu6
ProcVersionSignature: Ubuntu 4.4.0-34.53-generic 4.4.15
Uname: Linux 4.4.0-34-generic x86_64
ApportVersion: 2.20.3-0ubuntu6
Architecture: amd64
CurrentDesktop: Unity
Date: Sat Aug 13 13:08:19 2016
ExecutablePath: /usr/share/apport/apport-gtk
InstallationDate: Installed on 2014-08-13 (730 days ago)
InstallationMedia: Ubuntu 14.10 "Utopic Unicorn" - Alpha amd64 (20140810)
InterpreterPath: /usr/bin/python3.5
PackageArchitecture: all
ProcCmdline: /usr/bin/python3 /usr/share/apport/apport-gtk
ProcEnviron:
 LANGUAGE=en_GB:en
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_GB.UTF-8
 SHELL=/bin/bash
SegvAnalysis:
 Segfault happened at: 0x7f417343aae9: mov (%rbx),%rdi
 PC (0x7f417343aae9) ok
 source "(%rbx)" (0x00000000) not located in a known VMA region (needed readable region)!
 destination "%rdi" ok
SegvReason: reading NULL VMA
Signal: 11
SourcePackage: apport
StacktraceTop:
 ?? () from /usr/lib/x86_64-linux-gnu/libgtk-3.so.0
 ?? () from /usr/lib/x86_64-linux-gnu/libgtk-3.so.0
 ?? () from /usr/lib/x86_64-linux-gnu/libgtk-3.so.0
 ?? () from /usr/lib/x86_64-linux-gnu/libgtk-3.so.0
 ?? () from /usr/lib/x86_64-linux-gnu/libgtk-3.so.0
Title: apport-gtk crashed with SIGSEGV
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo

[Apport retracing service (apport)]

Thank you for taking the time to report this crash and helping to make this software better. This particular crash has already been reported and is a duplicate of bug #1552577, so is being marked as such. Please look at the other bug report to see if there is any missing information that you can provide, or to see if there is a workaround for the bug. Additionally, any further discussion regarding the bug should occur in the other report. Please continue to report any other bugs you may find.