Xcode-7.0.1 (7A1001): xcodebuild malloc incorrect checksum for freed object

Originator:jp
Number:rdar://23172400 Date Originated:19-Oct-2015 02:17 PM
Status:Open Resolved:
Product:Developer Tools Product Version:Xcode-7.0.1 (7A1001)
Classification:Crash/Hang/Data Loss Reproducible:Always
 
This happened just once on our CI server, building https://github.com/realm/realm-cocoa

xcodebuild -IDECustomDerivedDataLocation=build/DerivedData -project Realm.xcodeproj -scheme OSX -configuration Release test GCC_GENERATE_DEBUGGING_SYMBOLS=NO REALM_PREFIX_HEADER=Realm/RLMPrefix.h
User defaults from command line:
    IDECustomDerivedDataLocation = build/DerivedData

Build settings from command line:
    GCC_GENERATE_DEBUGGING_SYMBOLS = NO
    REALM_PREFIX_HEADER = Realm/RLMPrefix.h

=== BUILD TARGET OSX OF PROJECT Realm WITH CONFIGURATION Release ===

Check dependencies
xcodebuild(18353,0x11800e000) malloc: *** error for object 0x7fc12ae75948: incorrect checksum for freed object - object was probably modified after being freed.
*** set a breakpoint in malloc_error_break to debug
build.sh: line 87: 18353 Abort trap: 6           xcodebuild -IDECustomDerivedDataLocation=build/DerivedData -project Realm.xcodeproj -scheme OSX -configuration Release test GCC_GENERATE_DEBUGGING_SYMBOLS=NO REALM_PREFIX_HEADER=Realm/RLMPrefix.h

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