ruby2.3 crashed with SIGABRT in RVALUE_MARKED()

[DocWilco]

Really no idea where this crash happened. Sorry.

ProblemType: Crash
DistroRelease: Ubuntu 16.04
Package: ruby2.3 2.3.0-4ubuntu3
ProcVersionSignature: Ubuntu 4.4.0-13.29-generic 4.4.5
Uname: Linux 4.4.0-13-generic x86_64
ApportVersion: 2.20-0ubuntu3
Architecture: amd64
Date: Wed Mar 16 12:43:11 2016
ExecutablePath: /usr/bin/ruby2.3
InstallationDate: Installed on 2012-12-20 (1181 days ago)
InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Release amd64 (20121017.5)
ProcCmdline: chef-client\ worker:\ ppid=4308;start=12:43:10;
ProcEnviron:
 PATH=(custom, no user)
 LANG=en_US.UTF-8
Signal: 6
SourcePackage: ruby2.3
StacktraceTop:
 ?? () from /usr/lib/x86_64-linux-gnu/libruby-2.3.so.2.3
 ?? () from /usr/lib/x86_64-linux-gnu/libruby-2.3.so.2.3
 ?? () from /usr/lib/x86_64-linux-gnu/libruby-2.3.so.2.3
 ?? () from /usr/lib/x86_64-linux-gnu/libruby-2.3.so.2.3
 rb_sym_to_s () from /usr/lib/x86_64-linux-gnu/libruby-2.3.so.2.3
Title: ruby2.3 crashed with SIGABRT in rb_sym_to_s()
UpgradeStatus: Upgraded to xenial on 2016-02-26 (18 days ago)
UserGroups:

[Apport retracing service (apport)]

StacktraceTop:
 RVALUE_MARKED (obj=<optimized out>) at gc.c:1067
 gc_mark_set (objspace=0xf10a00, obj=33417040) at gc.c:4162
 gc_mark_ptr (objspace=0xf10a00, obj=33417040) at gc.c:4284
 gc_mark_stacked_objects (count=0, incremental=0, objspace=0xf10a00) at gc.c:4534
 gc_mark_stacked_objects_all (objspace=0xf10a00) at gc.c:4574

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.