unwind exception_handler
      pushing new fault: [user exception] 0x7fbe13180060
      entering unwinder for fault: [user exception] 0x7fbe13180060
      unwind: func call, raiseOffset 47 fp 0x7fbe28e7ce70
      discardStackTemps with fp 0x7fbe28e7ce70 sp 0x7fbe28e7ce70 pc 47
      discardStackTemps ends with sp = 0x7fbe28e7ce70
      tearDownFrame: LuaSandboxFunction::call (systemlib.phpluasandbox)
        fp 0x7fbe28e7ce70 prevFp 0x7fbe28e7ced0
      unwind: func callFunction, raiseOffset 3743 fp 0x7fbe28e7ced0
      discardStackTemps with fp 0x7fbe28e7ced0 sp 0x7fbe28e7cea0 pc 3743
      discardStackTemps ends with sp = 0x7fbe28e7cea0
      checkHandlers: func Scribunto_LuaSandboxInterpreter::callFunction (/srv/mediawiki/extensions/Scribunto/engines/LuaSandbox/Engine.ph\
p)
      checkHandlers: catch candidate 3750
      checkHandlers: catch candidate 3792
      checkHandlers: entering catch at 3792
      leaving unwinder for fault: [user exception] 0x7fbe13180060
    unwind exception_handler
      pushing new fault: [user exception] 0x7fbe13109e90
      entering unwinder for fault: [user exception] 0x7fbe13109e90
      unwind: func callFunction, raiseOffset 3809 fp 0x7fbe28e7ced0
      discardStackTemps with fp 0x7fbe28e7ced0 sp 0x7fbe28e7cea0 pc 3809
      discardStackTemps ends with sp = 0x7fbe28e7cea0
      tearDownFrame: Scribunto_LuaSandboxInterpreter::callFunction (/srv/mediawiki/extensions/Scribunto/engines/LuaSandbox/Engine.php)
        fp 0x7fbe28e7ced0 prevFp 0x7fbe28e7cf50
      unwind: func executeModule, raiseOffset 1126 fp 0x7fbe28e7cf50
      discardStackTemps with fp 0x7fbe28e7cf50 sp 0x7fbe28e7cf00 pc 1126
      discardStackTemps ends with sp = 0x7fbe28e7cf00
      tearDownFrame: Scribunto_LuaEngine::executeModule (/srv/mediawiki/extensions/Scribunto/engines/LuaCommon/LuaCommon.php)
        fp 0x7fbe28e7cf50 prevFp 0x7fbe28e7cfc0
      unwind: func invoke, raiseOffset 5828 fp 0x7fbe28e7cfc0
      discardStackTemps with fp 0x7fbe28e7cfc0 sp 0x7fbe28e7cf80 pc 5828
      discardStackTemps ends with sp = 0x7fbe28e7cf80
      tearDownFrame: Scribunto_LuaModule::invoke (/srv/mediawiki/extensions/Scribunto/engines/LuaCommon/LuaCommon.php)
        fp 0x7fbe28e7cfc0 prevFp 0x7fbe28e7d100
      unwind: func invokeHook, raiseOffset 612 fp 0x7fbe28e7d100
      discardStackTemps with fp 0x7fbe28e7d100 sp 0x7fbe28e7cff0 pc 612
      discardStackTemps ends with sp = 0x7fbe28e7cff0
      checkHandlers: func ScribuntoHooks::invokeHook (/srv/mediawiki/extensions/Scribunto/common/Hooks.php)
      checkHandlers: catch candidate 661
      checkHandlers: entering catch at 661
      leaving unwinder for fault: [user exception] 0x7fbe13109e90