rbx crashes when running specs

rbx-mysql2.txt

# mysql2 0.3.13

Backtrace:
/opt/rubies/rubinius-2.0.0/bin/rbx[0x5ec9be]
/lib64/libpthread.so.0(+0x10b10)[0x7f5baf867b10]
/opt/rubies/rubinius-2.0.0/bin/rbx(rb_type+0x50)[0x74ec40]
/opt/rubies/rubinius-2.0.0/bin/rbx(rb_to_encoding_index+0x1a)[0x746e6a]
/opt/rubies/rubinius-2.0.0/bin/rbx(rb_to_encoding+0x1a)[0x746faa]
/home/sayap/.gem/rbx/2.1.0/gems/mysql2-0.3.13/lib/mysql2/mysql2.so(+0x6b6b)[0x7f5ba40c1b6b]
/opt/rubies/rubinius-2.0.0/bin/rbx(_ZN8rubinius12NativeMethod23executor_implementationINS_11OneArgumentEEEPNS_6ObjectEPNS_5StateEPNS_9CallFrameEPNS_10ExecutableEPNS_6Mo
duleERNS_9ArgumentsE+0x416)[0x712386]
[0x7f5b9214b814]


# mysql2 0.3.13

Backtrace:
/opt/rubies/rubinius-2.0.0/bin/rbx[0x5ec9be]
/lib64/libpthread.so.0(+0x10b10)[0x7fbb48fcab10]
/opt/rubies/rubinius-2.0.0/bin/rbx(rb_gc_mark+0x1e)[0x74828e]
/home/sayap/.gem/rbx/2.1.0/gems/mysql2-0.3.13/lib/mysql2/mysql2.so(+0x6e11)[0x7fbb34dc7e11]
/opt/rubies/rubinius-2.0.0/bin/rbx(_ZN8rubinius4Data4Info4markEPNS_6ObjectERNS_10ObjectMarkE+0x6e)[0x6e5aee]
/opt/rubies/rubinius-2.0.0/bin/rbx(_ZN8rubinius16GarbageCollector11scan_objectEPNS_6ObjectE+0x8b)[0x758b8b]
/opt/rubies/rubinius-2.0.0/bin/rbx(_ZN8rubinius7BakerGC22scan_mature_mark_stackEv+0x5b)[0x7550cb]
/opt/rubies/rubinius-2.0.0/bin/rbx(_ZN8rubinius7BakerGC7collectEPNS_6GCDataEPNS_17YoungCollectStatsE+0x195)[0x755465]
/opt/rubies/rubinius-2.0.0/bin/rbx(_ZN8rubinius12ObjectMemory13collect_youngEPNS_5StateEPNS_6GCDataEPNS_17YoungCollectStatsE+0x75)[0x695665]
/opt/rubies/rubinius-2.0.0/bin/rbx(_ZN8rubinius12ObjectMemory13collect_maybeEPNS_5StateERNS_11GCTokenImplEPNS_9CallFrameE+0x251)[0x6959f1]
/opt/rubies/rubinius-2.0.0/bin/rbx(_ZN8rubinius2VM13collect_maybeERNS_11GCTokenImplEPNS_9CallFrameE+0x3f)[0x6d271f]
/opt/rubies/rubinius-2.0.0/bin/rbx(rbx_prologue_check+0x75)[0x7bc155]
[0x7fbb25b33640]


# mysql2 latest git

Backtrace:
/opt/rubies/rubinius-2.0.0/bin/rbx[0x5ec9be]
/lib64/libpthread.so.0(+0x10b10)[0x7f41c7cdeb10]
/opt/rubies/rubinius-2.0.0/bin/rbx(rb_type+0x50)[0x74ec40]
/opt/rubies/rubinius-2.0.0/bin/rbx(rb_to_encoding_index+0x1a)[0x746e6a]
/opt/rubies/rubinius-2.0.0/bin/rbx(rb_to_encoding+0x1a)[0x746faa]
/home/sayap/.gem/rbx/2.1.0/bundler/gems/mysql2-71a00585b715/lib/mysql2/mysql2.so(+0x6b3b)[0x7f41ab5dab3b]
/opt/rubies/rubinius-2.0.0/bin/rbx(_ZN8rubinius12NativeMethod23executor_implementationINS_11OneArgumentEEEPNS_6ObjectEPNS_5StateEPNS_9CallFrameEPNS_10ExecutableEPNS_6Mo
duleERNS_9ArgumentsE+0x416)[0x712386]
[0x7f41abaa66b6]