(gdb) bt
#0  _zend_mm_free_int (heap=0x102b2c0, p=0x7fc5e5474400) at /build/php5-LRe0pE/php5-5.6.11+dfsg/Zend/zend_alloc.c:2104
#1  0x00007fc5f5e8dff7 in xdebug_append_error_description (str=str@entry=0x7fff12203010, html=1,
    error_type_str=0x7fc5e558b5b8 "Illuminate\\Database\\QueryException", buffer=<optimized out>,
    error_filename=0x18e3b48 "/home/vagrant/Code/Railbookers/rb-admin2/vendor/illuminate/database/Connection.php", error_lineno=636)
    at /build/buildd/xdebug-2.3.2/xdebug-2.3.2/xdebug_stack.c:249
#2  0x00007fc5f5e7bc5c in xdebug_throw_exception_hook (exception=0x18e3ec0) at /build/buildd/xdebug-2.3.2/xdebug-2.3.2/xdebug.c:1220
#3  0x00000000006f5a2e in zend_throw_exception_internal (exception=0x18e3ec0)
    at /build/php5-LRe0pE/php5-5.6.11+dfsg/Zend/zend_exceptions.c:116
#4  0x00000000006f5d0e in zend_throw_exception_object (exception=<optimized out>)
    at /build/php5-LRe0pE/php5-5.6.11+dfsg/Zend/zend_exceptions.c:918
#5  0x0000000000726eaf in ZEND_THROW_SPEC_VAR_HANDLER (execute_data=<optimized out>)
    at /build/php5-LRe0pE/php5-5.6.11+dfsg/Zend/zend_vm_execute.h:13364
#6  0x0000000000715218 in execute_ex (execute_data=0x7fc5f9046258) at /build/php5-LRe0pE/php5-5.6.11+dfsg/Zend/zend_vm_execute.h:363
#7  0x00000000006ca599 in dtrace_execute_ex (execute_data=<optimized out>) at /build/php5-LRe0pE/php5-5.6.11+dfsg/Zend/zend_dtrace.c:73
#8  0x00007fc5f5e7d5d2 in xdebug_execute_ex (execute_data=0x7fc5f9046258) at /build/buildd/xdebug-2.3.2/xdebug-2.3.2/xdebug.c:1526
#9  0x000000000077fbe7 in zend_do_fcall_common_helper_SPEC (execute_data=<optimized out>)
    at /build/php5-LRe0pE/php5-5.6.11+dfsg/Zend/zend_vm_execute.h:592
#10 0x0000000000715218 in execute_ex (execute_data=0x7fc5f90460e0) at /build/php5-LRe0pE/php5-5.6.11+dfsg/Zend/zend_vm_execute.h:363
#11 0x00000000006ca599 in dtrace_execute_ex (execute_data=<optimized out>) at /build/php5-LRe0pE/php5-5.6.11+dfsg/Zend/zend_dtrace.c:73
#12 0x00007fc5f5e7d5d2 in xdebug_execute_ex (execute_data=0x7fc5f90460e0) at /build/buildd/xdebug-2.3.2/xdebug-2.3.2/xdebug.c:1526
#13 0x000000000077fbe7 in zend_do_fcall_common_helper_SPEC (execute_data=<optimized out>)
    at /build/php5-LRe0pE/php5-5.6.11+dfsg/Zend/zend_vm_execute.h:592
#14 0x0000000000715218 in execute_ex (execute_data=0x7fc5f9045fb8) at /build/php5-LRe0pE/php5-5.6.11+dfsg/Zend/zend_vm_execute.h:363
#15 0x00000000006ca599 in dtrace_execute_ex (execute_data=<optimized out>) at /build/php5-LRe0pE/php5-5.6.11+dfsg/Zend/zend_dtrace.c:73
#16 0x00007fc5f5e7d5d2 in xdebug_execute_ex (execute_data=0x7fc5f9045fb8) at /build/buildd/xdebug-2.3.2/xdebug-2.3.2/xdebug.c:1526
#17 0x000000000077fbe7 in zend_do_fcall_common_helper_SPEC (execute_data=<optimized out>)
    at /build/php5-LRe0pE/php5-5.6.11+dfsg/Zend/zend_vm_execute.h:592
#18 0x0000000000715218 in execute_ex (execute_data=0x7fc5f9045eb8) at /build/php5-LRe0pE/php5-5.6.11+dfsg/Zend/zend_vm_execute.h:363
#19 0x00000000006ca599 in dtrace_execute_ex (execute_data=<optimized out>) at /build/php5-LRe0pE/php5-5.6.11+dfsg/Zend/zend_dtrace.c:73
#20 0x00007fc5f5e7d5d2 in xdebug_execute_ex (execute_data=0x7fc5f9045eb8) at /build/buildd/xdebug-2.3.2/xdebug-2.3.2/xdebug.c:1526
#21 0x000000000077fbe7 in zend_do_fcall_common_helper_SPEC (execute_data=<optimized out>)
    at /build/php5-LRe0pE/php5-5.6.11+dfsg/Zend/zend_vm_execute.h:592
#22 0x0000000000715218 in execute_ex (execute_data=0x7fc5f9045d60) at /build/php5-LRe0pE/php5-5.6.11+dfsg/Zend/zend_vm_execute.h:363
---Type <return> to continue, or q <return> to quit---
#23 0x00000000006ca599 in dtrace_execute_ex (execute_data=<optimized out>) at /build/php5-LRe0pE/php5-5.6.11+dfsg/Zend/zend_dtrace.c:73
#24 0x00007fc5f5e7d5d2 in xdebug_execute_ex (execute_data=0x7fc5f9045d60) at /build/buildd/xdebug-2.3.2/xdebug-2.3.2/xdebug.c:1526
#25 0x000000000077fbe7 in zend_do_fcall_common_helper_SPEC (execute_data=<optimized out>)
    at /build/php5-LRe0pE/php5-5.6.11+dfsg/Zend/zend_vm_execute.h:592
#26 0x0000000000715218 in execute_ex (execute_data=0x7fc5f9045c08) at /build/php5-LRe0pE/php5-5.6.11+dfsg/Zend/zend_vm_execute.h:363
#27 0x00000000006ca599 in dtrace_execute_ex (execute_data=<optimized out>) at /build/php5-LRe0pE/php5-5.6.11+dfsg/Zend/zend_dtrace.c:73
#28 0x00007fc5f5e7d5d2 in xdebug_execute_ex (execute_data=0x7fc5f9045c08) at /build/buildd/xdebug-2.3.2/xdebug-2.3.2/xdebug.c:1526
#29 0x000000000077fbe7 in zend_do_fcall_common_helper_SPEC (execute_data=<optimized out>)
    at /build/php5-LRe0pE/php5-5.6.11+dfsg/Zend/zend_vm_execute.h:592
#30 0x0000000000715218 in execute_ex (execute_data=0x7fc5f90459e8) at /build/php5-LRe0pE/php5-5.6.11+dfsg/Zend/zend_vm_execute.h:363
#31 0x00000000006ca599 in dtrace_execute_ex (execute_data=<optimized out>) at /build/php5-LRe0pE/php5-5.6.11+dfsg/Zend/zend_dtrace.c:73
#32 0x00007fc5f5e7d5d2 in xdebug_execute_ex (execute_data=0x7fc5f90459e8) at /build/buildd/xdebug-2.3.2/xdebug-2.3.2/xdebug.c:1526
#33 0x000000000077e9e1 in ZEND_INCLUDE_OR_EVAL_SPEC_TMP_HANDLER (execute_data=0x7fc5f9045800)
    at /build/php5-LRe0pE/php5-5.6.11+dfsg/Zend/zend_vm_execute.h:8389
#34 0x0000000000715218 in execute_ex (execute_data=0x7fc5f9045800) at /build/php5-LRe0pE/php5-5.6.11+dfsg/Zend/zend_vm_execute.h:363
#35 0x00000000006ca599 in dtrace_execute_ex (execute_data=<optimized out>) at /build/php5-LRe0pE/php5-5.6.11+dfsg/Zend/zend_dtrace.c:73
#36 0x00007fc5f5e7d5d2 in xdebug_execute_ex (execute_data=0x7fc5f9045800) at /build/buildd/xdebug-2.3.2/xdebug-2.3.2/xdebug.c:1526
#37 0x00000000006dc940 in zend_execute_scripts (type=type@entry=8, retval=retval@entry=0x0, file_count=file_count@entry=3)
    at /build/php5-LRe0pE/php5-5.6.11+dfsg/Zend/zend.c:1341
#38 0x000000000067abc2 in php_execute_script (primary_file=primary_file@entry=0x7fff122065f0)
    at /build/php5-LRe0pE/php5-5.6.11+dfsg/main/main.c:2597
#39 0x0000000000464831 in main (argc=<optimized out>, argv=<optimized out>)
    at /build/php5-LRe0pE/php5-5.6.11+dfsg/sapi/fpm/fpm/fpm_main.c:2047