#0  0x0000000000771f4f in ZEND_FETCH_DIM_R_SPEC_VAR_CONST_HANDLER (execute_data=0x7ffe20bec8d8) at /build/buildd/php5-5.5.3+dfsg/Zend/zend_vm_execute.h:14784
  [Error: /build/buildd/php5-5.5.3+dfsg/Zend/zend_vm_execute.h was not found in source tree]
#1  0x0000000000714ff8 in execute_ex (execute_data=0x7ffe20bec8d8) at /build/buildd/php5-5.5.3+dfsg/Zend/zend_vm_execute.h:356
  [Error: /build/buildd/php5-5.5.3+dfsg/Zend/zend_vm_execute.h was not found in source tree]
#2  0x00000000006ece30 in zend_execute_scripts (type=type@entry=8, retval=retval@entry=0x0, file_count=file_count@entry=3) at /build/buildd/php5-5.5.3+dfsg/Zend/zend.c:1316
  [Error: /build/buildd/php5-5.5.3+dfsg/Zend/zend.c was not found in source tree]
#3  0x000000000068d165 in php_execute_script (primary_file=primary_file@entry=0x7fff0651c210) at /build/buildd/php5-5.5.3+dfsg/main/main.c:2484
  [Error: /build/buildd/php5-5.5.3+dfsg/main/main.c was not found in source tree]
#4  0x00000000004638f0 in main (argc=<optimized out>, argv=<optimized out>) at /build/buildd/php5-5.5.3+dfsg/sapi/fpm/fpm/fpm_main.c:1933
  [Error: /build/buildd/php5-5.5.3+dfsg/sapi/fpm/fpm/fpm_main.c was not found in source tree]