This is the output I'm getting from my SkypeMenuUpdater.rb script. This is on a computer running Mac OS X 10.8.5 with FScript 2.1 and Skype 6.7.60.373. I was able to run a script (https://gist.github.com/1170175) to successfully inject F-Script into Safari. This leads me to think that there is an issue with Skype.

SkypeMenuUpdater_Output.txt

$ SkypeMenuUpdater.rb
GNU gdb 6.3.50-20050815 (Apple version gdb-1824) (Wed Feb  6 22:51:23 UTC 2013)
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This GDB was configured as "x86_64-apple-darwin".
(gdb) Attaching to process 5393.
Reading symbols for shared libraries . done
Reading symbols for shared libraries ...............................................................................................................................................................................................................warning: Could not find object file "/Users/andreaslinde/Library/Developer/Xcode/DerivedData/HockeySDK-dxwpekiiwksaeqeishmbueagywwk/Build/Intermediates/HockeySDK.build/Release/HockeySDK.build/Objects-normal/i386/BITHockeyManager.o" - no debug information available for "BITHockeyManager.m".

warning: Could not find object file "/Users/andreaslinde/Library/Developer/Xcode/DerivedData/HockeySDK-dxwpekiiwksaeqeishmbueagywwk/Build/Intermediates/HockeySDK.build/Release/HockeySDK.build/Objects-normal/i386/BITCrashReportManager.o" - no debug information available for "BITCrashReportManager.m".

warning: Could not find object file "/Users/andreaslinde/Library/Developer/Xcode/DerivedData/HockeySDK-dxwpekiiwksaeqeishmbueagywwk/Build/Intermediates/HockeySDK.build/Release/HockeySDK.build/Objects-normal/i386/BITCrashReportUI.o" - no debug information available for "BITCrashReportUI.m".

warning: Could not find object file "/Users/andreaslinde/Library/Developer/Xcode/DerivedData/HockeySDK-dxwpekiiwksaeqeishmbueagywwk/Build/Intermediates/HockeySDK.build/Release/HockeySDK.build/Objects-normal/i386/BITCrashReportTextFormatter.o" - no debug information available for "BITCrashReportTextFormatter.m".

warning: Could not find object file "/Users/andreaslinde/Library/Developer/Xcode/DerivedData/HockeySDK-dxwpekiiwksaeqeishmbueagywwk/Build/Intermediates/HockeySDK.build/Release/HockeySDK.build/Objects-normal/i386/BITSystemProfile.o" - no debug information available for "BITSystemProfile.m".

............................................. done
0x987907ce in mach_msg_trap ()
(gdb) Reading symbols from /Applications/Skype.app/Contents/MacOS/Skype...done.
(gdb) No symbol table is loaded.  Use the "file" command.
(gdb) No symbol table is loaded.  Use the "file" command.
(gdb) (gdb)