I assume WebCore because the "buildfailed" file says the failing project was XXWebCoreXX. The cygwin/home/<user>/WebKit/WebKitBuild/Release/obj/WebCore/BuildLog.htm has been attached.
Note that some of these are redundant due to dependencies on the same files.
Created attachment 170716 [details]
BuildLog.htm for WebCore
<http://build.webkit.org/builders/Apple%20Win%20Debug%20%28Build%29> and <http://build.webkit.org/builders/Apple%20Win%20Release%20%28Build%29> build without problems with the current trunk. If you have build problems with a revision which builds on the bots, it is usually a problem with the setup of your machine.
The problems with the line endings are usually caused by "wrong" perl version.