$ phpunit --filter testFindOne
PHPUnit 4.5.0 by Sebastian Bergmann and contributors.

Configuration read from /home/jmikola/workspace/mongodb/phplib/phpunit.xml.dist

Segmentation fault (core dumped)
[honeydew: phplib] derickr-typemap-fixes $ gdb `which php` core 
GNU gdb (Ubuntu 7.9-1ubuntu1) 7.9
Copyright (C) 2015 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
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There is NO WARRANTY, to the extent permitted by law.  Type "show copying"
and "show warranty" for details.
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Reading symbols from /usr/bin/php...Reading symbols from /usr/lib/debug/.build-id/0f/3f1498e14eb8d856e03d271f7b4e6af21a7547.debug...done.
done.

warning: core file may not match specified executable file.
[New LWP 9955]
b[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
t Core was generated by `php /home/jmikola/.composer/vendor/bin/phpunit --filter testFindOne'.
Program terminated with signal SIGSEGV, Segmentation fault.
#0  0x0000000000728df1 in gc_zval_possible_root (zv=0x7f594a6d0020) at /build/php5-oxmf3S/php5-5.6.4+dfsg/Zend/zend_gc.c:143
143	/build/php5-oxmf3S/php5-5.6.4+dfsg/Zend/zend_gc.c: No such file or directory.
(gdb) bt full
#0  0x0000000000728df1 in gc_zval_possible_root (zv=0x7f594a6d0020) at /build/php5-oxmf3S/php5-5.6.4+dfsg/Zend/zend_gc.c:143
No locals.
#1  0x0000000000716278 in zend_hash_destroy (ht=0x7f594a4366e8) at /build/php5-oxmf3S/php5-5.6.4+dfsg/Zend/zend_hash.c:548
        p = 0x0
        q = 0x7f594a3c59b8
#2  0x0000000000706c2b in _zval_dtor_func (zvalue=0x7f594a6d0020, zvalue@entry=0x7f594a6e71e8) at /build/php5-oxmf3S/php5-5.6.4+dfsg/Zend/zend_variables.c:45
No locals.
#3  0x00000000007b1418 in _zval_dtor (zvalue=0x7f594a6e71e8) at /build/php5-oxmf3S/php5-5.6.4+dfsg/Zend/zend_variables.h:35
No locals.
#4  i_zval_ptr_dtor (zval_ptr=0x7f594a6e71e8) at /build/php5-oxmf3S/php5-5.6.4+dfsg/Zend/zend_execute.h:79
No locals.
#5  i_free_compiled_variables (execute_data=0x7f595aee9e70) at /build/php5-oxmf3S/php5-5.6.4+dfsg/Zend/zend_execute.c:1555
        cv = 0x7f595aee9f00
        end = 0x7f595aee9f10
#6  zend_leave_helper_SPEC (execute_data=0x7f595aee9e70) at /build/php5-oxmf3S/php5-5.6.4+dfsg/Zend/zend_vm_execute.h:399
        nested = 0 '\000'
        op_array = 0x7f594a654490
#7  0x0000000000744ef0 in execute_ex (execute_data=0x7f595aee9e70) at /build/php5-oxmf3S/php5-5.6.4+dfsg/Zend/zend_vm_execute.h:363
        ret = -1723060224
        original_in_execution = 1 '\001'
#8  0x00000000006f6cb8 in dtrace_execute_ex (execute_data=0x7f595aee9e70) at /build/php5-oxmf3S/php5-5.6.4+dfsg/Zend/zend_dtrace.c:73
        lineno = 0
        scope = 0x0
        filename = 0x0
        funcname = 0x0
        classname = 0x0
#9  0x00000000006f8b4a in zend_call_function (fci=0x7ffd12f025b0, fci_cache=0x7f594a436690) at /build/php5-oxmf3S/php5-5.6.4+dfsg/Zend/zend_execute_API.c:832
        i = 1244152296
        calling_symbol_table = 0x0
        original_opline_ptr = 0x7f595aee9b18
        current_scope = 0x0
        current_called_scope = 0x2337bf0
        execute_data = {opline = 0x0, function_state = {function = 0x7f594a654490, arguments = 0x7f595aee9c68}, op_array = 0x0, object = 0x7f594a848940, symbol_table = 0x0, 
          prev_execute_data = 0x7f595aee9b18, old_error_reporting = 0x0, nested = 0 '\000', original_return_value = 0x7f595aee9b80, current_scope = 0x7f594a7ed9c0, 
          current_called_scope = 0x7f594a6bf770, current_this = 0x7f594a848940, fast_ret = 0x7f594a6d0358, delayed_exception = 0x0, call_slots = 0x7f595aee9c10, call = 0x7f595aee9c10}
        fci_cache_local = {initialized = 192 '\300', function_handler = 0x2, calling_scope = 0x3000000020, called_scope = 0x7ffd12f02560, object_ptr = 0x7ffd12f02490}
#10 0x000000000058b33b in zim_reflection_method_invokeArgs (ht=0, return_value=0x7f594a6d1d38, return_value_ptr=0x7f595aeff068, this_ptr=0x7f594a6bf770, return_value_used=1244152296)
    at /build/php5-oxmf3S/php5-5.6.4+dfsg/ext/reflection/php_reflection.c:3045
        retval_ptr = 0x7f594a6666d8
        params = 0x7f594a306e68
        object = 0x7f594a848940
        intern = 0x7f594a395e70
        argc = 0
        result = 1248589680
        fci = {size = 72, function_table = 0x0, function_name = 0x0, symbol_table = 0x0, retval_ptr_ptr = 0x7ffd12f02560, param_count = 0, params = 0x7f594a306e68, object_ptr = 0x7f594a848940, 
          no_separation = 1 '\001'}
---Type <return> to continue, or q <return> to quit---
        fcc = {initialized = 1 '\001', function_handler = 0x7f594a654490, calling_scope = 0x7f594a6bf770, called_scope = 0x7f594a6bf770, object_ptr = 0x7f594a848940}
        obj_ce = 0x7f594a6bf770
        param_array = 0x7f594a6d0c50
#11 0x00000000006f6e1a in dtrace_execute_internal (execute_data_ptr=<optimized out>, fci=<optimized out>, return_value_used=<optimized out>)
    at /build/php5-oxmf3S/php5-5.6.4+dfsg/Zend/zend_dtrace.c:97
        lineno = <optimized out>
        filename = <optimized out>
#12 0x00000000007b4eb0 in zend_do_fcall_common_helper_SPEC (execute_data=0x7f595aee9b18) at /build/php5-oxmf3S/php5-5.6.4+dfsg/Zend/zend_vm_execute.h:560
        ret = 0x7f595aee9818
        opline = 0x7f594a806e20
        fbc = 0x2339180
        num_args = 0
#13 0x0000000000744ef0 in execute_ex (execute_data=0x7f595aee9b18) at /build/php5-oxmf3S/php5-5.6.4+dfsg/Zend/zend_vm_execute.h:363
        ret = -1723060224
        original_in_execution = 1 '\001'
#14 0x00000000006f6cb8 in dtrace_execute_ex (execute_data=0x7f595aee9b18) at /build/php5-oxmf3S/php5-5.6.4+dfsg/Zend/zend_dtrace.c:73
        lineno = 0
        scope = 0x0
        filename = 0x0
        funcname = 0x0
        classname = 0x0
#15 0x00000000007b53de in zend_do_fcall_common_helper_SPEC (execute_data=0x7f595aee8ed8) at /build/php5-oxmf3S/php5-5.6.4+dfsg/Zend/zend_vm_execute.h:592
        opline = 0x7f594a802968
        fbc = 0x7f594a658ae0
        num_args = 0
#16 0x0000000000744ef0 in execute_ex (execute_data=0x7f595aee8ed8) at /build/php5-oxmf3S/php5-5.6.4+dfsg/Zend/zend_vm_execute.h:363
        ret = -1723060224
        original_in_execution = 1 '\001'
#17 0x00000000006f6cb8 in dtrace_execute_ex (execute_data=0x7f595aee8ed8) at /build/php5-oxmf3S/php5-5.6.4+dfsg/Zend/zend_dtrace.c:73
        lineno = 0
        scope = 0x0
        filename = 0x0
        funcname = 0x0
        classname = 0x0
#18 0x00000000007b53de in zend_do_fcall_common_helper_SPEC (execute_data=0x7f595aee7b48) at /build/php5-oxmf3S/php5-5.6.4+dfsg/Zend/zend_vm_execute.h:592
        opline = 0x7f594a2fd6b0
        fbc = 0x7f594a6589d8
        num_args = 0
#19 0x0000000000744ef0 in execute_ex (execute_data=0x7f595aee7b48) at /build/php5-oxmf3S/php5-5.6.4+dfsg/Zend/zend_vm_execute.h:363
        ret = -1723060224
        original_in_execution = 1 '\001'
#20 0x00000000006f6cb8 in dtrace_execute_ex (execute_data=0x7f595aee7b48) at /build/php5-oxmf3S/php5-5.6.4+dfsg/Zend/zend_dtrace.c:73
        lineno = 0
        scope = 0x0
        filename = 0x0
        funcname = 0x0
---Type <return> to continue, or q <return> to quit---
        classname = 0x0
#21 0x00000000007b53de in zend_do_fcall_common_helper_SPEC (execute_data=0x7f595aee60c0) at /build/php5-oxmf3S/php5-5.6.4+dfsg/Zend/zend_vm_execute.h:592
        opline = 0x7f594a7fe900
        fbc = 0x7f594a3754e0
        num_args = 0
#22 0x0000000000744ef0 in execute_ex (execute_data=0x7f595aee60c0) at /build/php5-oxmf3S/php5-5.6.4+dfsg/Zend/zend_vm_execute.h:363
        ret = -1723060224
        original_in_execution = 1 '\001'
#23 0x00000000006f6cb8 in dtrace_execute_ex (execute_data=0x7f595aee60c0) at /build/php5-oxmf3S/php5-5.6.4+dfsg/Zend/zend_dtrace.c:73
        lineno = 0
        scope = 0x0
        filename = 0x0
        funcname = 0x0
        classname = 0x0
#24 0x00000000007b53de in zend_do_fcall_common_helper_SPEC (execute_data=0x7f595aee4c48) at /build/php5-oxmf3S/php5-5.6.4+dfsg/Zend/zend_vm_execute.h:592
        opline = 0x7f594a841a30
        fbc = 0x7f594a6588d0
        num_args = 0
#25 0x0000000000744ef0 in execute_ex (execute_data=0x7f595aee4c48) at /build/php5-oxmf3S/php5-5.6.4+dfsg/Zend/zend_vm_execute.h:363
        ret = -1723060224
        original_in_execution = 1 '\001'
#26 0x00000000006f6cb8 in dtrace_execute_ex (execute_data=0x7f595aee4c48) at /build/php5-oxmf3S/php5-5.6.4+dfsg/Zend/zend_dtrace.c:73
        lineno = 0
        scope = 0x0
        filename = 0x0
        funcname = 0x0
        classname = 0x0
#27 0x00000000007b53de in zend_do_fcall_common_helper_SPEC (execute_data=0x7f595aee3cb0) at /build/php5-oxmf3S/php5-5.6.4+dfsg/Zend/zend_vm_execute.h:592
        opline = 0x7f594a841a30
        fbc = 0x7f594a833bb8
        num_args = 0
#28 0x0000000000744ef0 in execute_ex (execute_data=0x7f595aee3cb0) at /build/php5-oxmf3S/php5-5.6.4+dfsg/Zend/zend_vm_execute.h:363
        ret = -1723060224
        original_in_execution = 1 '\001'
#29 0x00000000006f6cb8 in dtrace_execute_ex (execute_data=0x7f595aee3cb0) at /build/php5-oxmf3S/php5-5.6.4+dfsg/Zend/zend_dtrace.c:73
        lineno = 0
        scope = 0x0
        filename = 0x0
        funcname = 0x0
        classname = 0x0
#30 0x00000000007b53de in zend_do_fcall_common_helper_SPEC (execute_data=0x7f595aee2cc8) at /build/php5-oxmf3S/php5-5.6.4+dfsg/Zend/zend_vm_execute.h:592
        opline = 0x7f594a3aab78
        fbc = 0x7f594a833bb8
        num_args = 0
#31 0x0000000000744ef0 in execute_ex (execute_data=0x7f595aee2cc8) at /build/php5-oxmf3S/php5-5.6.4+dfsg/Zend/zend_vm_execute.h:363
        ret = -1723060224
---Type <return> to continue, or q <return> to quit---
        original_in_execution = 1 '\001'
#32 0x00000000006f6cb8 in dtrace_execute_ex (execute_data=0x7f595aee2cc8) at /build/php5-oxmf3S/php5-5.6.4+dfsg/Zend/zend_dtrace.c:73
        lineno = 0
        scope = 0x0
        filename = 0x0
        funcname = 0x0
        classname = 0x0
#33 0x00000000007b53de in zend_do_fcall_common_helper_SPEC (execute_data=0x7f595aedfed8) at /build/php5-oxmf3S/php5-5.6.4+dfsg/Zend/zend_vm_execute.h:592
        opline = 0x7f594a894070
        fbc = 0x7f594a39e340
        num_args = 0
#34 0x0000000000744ef0 in execute_ex (execute_data=0x7f595aedfed8) at /build/php5-oxmf3S/php5-5.6.4+dfsg/Zend/zend_vm_execute.h:363
        ret = -1723060224
        original_in_execution = 1 '\001'
#35 0x00000000006f6cb8 in dtrace_execute_ex (execute_data=0x7f595aedfed8) at /build/php5-oxmf3S/php5-5.6.4+dfsg/Zend/zend_dtrace.c:73
        lineno = 0
        scope = 0x0
        filename = 0x0
        funcname = 0x0
        classname = 0x0
#36 0x00000000007b53de in zend_do_fcall_common_helper_SPEC (execute_data=0x7f595aedf598) at /build/php5-oxmf3S/php5-5.6.4+dfsg/Zend/zend_vm_execute.h:592
        opline = 0x7f594a88ab20
        fbc = 0x7f594a88db10
        num_args = 0
#37 0x0000000000744ef0 in execute_ex (execute_data=0x7f595aedf598) at /build/php5-oxmf3S/php5-5.6.4+dfsg/Zend/zend_vm_execute.h:363
        ret = -1723060224
        original_in_execution = 1 '\001'
#38 0x00000000006f6cb8 in dtrace_execute_ex (execute_data=0x7f595aedf598) at /build/php5-oxmf3S/php5-5.6.4+dfsg/Zend/zend_dtrace.c:73
        lineno = 0
        scope = 0x0
        filename = 0x0
        funcname = 0x0
        classname = 0x0
#39 0x00000000007b53de in zend_do_fcall_common_helper_SPEC (execute_data=0x7f595aedf3e0) at /build/php5-oxmf3S/php5-5.6.4+dfsg/Zend/zend_vm_execute.h:592
        opline = 0x7f595af15910
        fbc = 0x7f595af17580
        num_args = 0
#40 0x0000000000744ef0 in execute_ex (execute_data=0x7f595aedf3e0) at /build/php5-oxmf3S/php5-5.6.4+dfsg/Zend/zend_vm_execute.h:363
        ret = -1723060224
        original_in_execution = 0 '\000'
#41 0x00000000006f6cb8 in dtrace_execute_ex (execute_data=0x7f595aedf3e0) at /build/php5-oxmf3S/php5-5.6.4+dfsg/Zend/zend_dtrace.c:73
        lineno = 32601
        scope = 0x0
        filename = 0x0
        funcname = 0x0
        classname = 0x0
---Type <return> to continue, or q <return> to quit---
#42 0x00000000007096b0 in zend_execute_scripts (type=1248657440, type@entry=8, retval=0x7f594a436690, retval@entry=0x0, file_count=1525674088, file_count@entry=3)
    at /build/php5-oxmf3S/php5-5.6.4+dfsg/Zend/zend.c:1344
        files = {{gp_offset = 40, fp_offset = 89341111, overflow_arg_area = 0x7ffd12f035d0, reg_save_area = 0x7ffd12f03560}}
        i = 1
        file_handle = 0x7ffd12f05980
#43 0x00000000006a53bb in php_execute_script (primary_file=0x7ffd12f05980) at /build/php5-oxmf3S/php5-5.6.4+dfsg/main/main.c:2584
        realfile = "/home/jmikola/.composer/vendor/phpunit/phpunit/phpunit\000\000\b\000\000\000 \000\000\000\250\276'\002\000\000\000\000\300H\360\022\375\177\000\000\270H\360\022\375\177\000\000p\301'\002\000\000\000\000\003\000\000\000\n\000\000\000\210\365\355ZY\177\000\000\002", '\000' <repeats 15 times>, "\b", '\000' <repeats 15 times>, "\004\000\000\000\000\000\000\000\360H\360\022\375\177\000\000.", '\000' <repeats 15 times>, "\005\000\000\000\000\000\000\000\020I\360\022\375\177\000\000\021\267\017\355\002\200\377\377"...
        __orig_bailout = 0x7ffd12f05b40
        __bailout = {{__jmpbuf = {140724921195328, -3990492326491703705, 140724921194632, 12340792, 1, 2, -3990492322823784857, 3991536632032409191}, __mask_was_saved = 0, __saved_mask = {
              __val = {248, 36159144, 36160448, 14748344700621421935, 140021720368398, 0, 16419161835647551488, 7, 140724921195536, 35030720, 140724921194632, 12340792, 140724921195536, 
                35030720, 7528876, 140021754359928}}}}
        prepend_file_p = 0x0
        append_file_p = 0x0
        prepend_file = {type = ZEND_HANDLE_FILENAME, filename = 0x0, opened_path = 0x0, handle = {fd = 0, fp = 0x0, stream = {handle = 0x0, isatty = 0, mmap = {len = 0, pos = 0, map = 0x0, 
                buf = 0x0, old_handle = 0x0, old_closer = 0x0}, reader = 0x0, fsizer = 0x0, closer = 0x0}}, free_filename = 0 '\000'}
        append_file = {type = ZEND_HANDLE_FILENAME, filename = 0x0, opened_path = 0x0, handle = {fd = 0, fp = 0x0, stream = {handle = 0x0, isatty = 0, mmap = {len = 0, pos = 0, map = 0x0, 
                buf = 0x0, old_handle = 0x0, old_closer = 0x0}, reader = 0x0, fsizer = 0x0, closer = 0x0}}, free_filename = 0 '\000'}
        old_cwd = 0x7ffd12f035d0 ""
        retval = 0
#44 0x00000000007b6e50 in do_cli (argc=1248657440, argv=0x7f594a436690) at /build/php5-oxmf3S/php5-5.6.4+dfsg/sapi/cli/php_cli.c:994
        __bailout = {{__jmpbuf = {35031264, 3991536994358015591, 12343408, 140724921199832, 140724921199828, 15701120, -3990492326489606553, 3991536485884638823}, __mask_was_saved = 0, 
            __saved_mask = {__val = {12235969, 12235993, 12130085, 12130106, 12236006, 12236026, 12236043, 12236597, 12236064, 12236078, 12236100, 12236119, 12236146, 12236175, 0, 
                7955998172649846063}}}}
        file_handle = {type = ZEND_HANDLE_MAPPED, filename = 0x21686c0 "/home/jmikola/.composer/vendor/bin/phpunit", opened_path = 0x0, handle = {fd = 1525763712, fp = 0x7f595af14e80, 
            stream = {handle = 0x7f595af14e80, isatty = 0, mmap = {len = 911, pos = 0, map = 0x7f595af55000, buf = 0x7f595af55013 <error: Cannot access memory at address 0x7f595af55013>, 
                old_handle = 0x252f6f0, old_closer = 0x71f2a0 <zend_stream_stdio_closer>}, reader = 0x71f2d0 <zend_stream_stdio_reader>, fsizer = 0x71f220 <zend_stream_stdio_fsizer>, 
              closer = 0x71f1a0 <zend_stream_mmap_closer>}}, free_filename = 0 '\000'}
        request_started = 1
        exit_status = 0
        php_optarg = 0x0
        php_optind = 2
        arg_excp = 0x2168678
        lineno = 2
#45 0x0000000000463a2d in main (argc=1248657440, argv=0x7f594a436690) at /build/php5-oxmf3S/php5-5.6.4+dfsg/sapi/cli/php_cli.c:1378
        __bailout = {{__jmpbuf = {35031264, 3991536994358015591, 12343408, 140724921199832, 140724921199828, 15701120, -3990492325824809369, 3991536394930501223}, __mask_was_saved = 0, 
            __saved_mask = {__val = {4131212846, 4294967295, 140021752682909, 140021719892472, 140021754653144, 0, 140021719873248, 3, 4, 140724921200328, 140021752712992, 140021688205576, 4, 
                140724921200328, 140021752712992, 1}}}}
        c = -1723060224
        php_optarg = 0x0
        php_optind = 1
        ini_ignore = 0
(gdb)