I am a bit at loss at that error myself.
But it looks like it is make.exe that has a problem.
It is supposed to execute all the "rm -f". And (not sure, but) it is probably correct, that they do not print any files that are deleted (as you have done that already, by deleting the *.ppu)
From what it looks, it believe it is running the make.exe, that comes with lazarus.
It also looks (21 rm) like it done all the work, and fails at exit.
Afaik make.exe is a 3rd party tool (not sure it is avail from the fpc repository, but not sure where they had it from).
It doesn't fail for me. But I don't have win 8. I thought I read on the mail list, someone else managed with win 8. SO I don't even know if or if not this is a generic wake versus win 8 issue.
Not sure what to do next. There are a few thinks you might try. But
I don't know if it will do any good.
1) Run the make from command line (open a cmd.com and change dir into your lazarus dir)
The -d adds more feedback from make, maybe it gives a clue why it crashes. (If the data is huge, attach as file)
cd D:/luke/lazarus
D:/luke/lazarus/fpc/2.6.0/bin/x86_64-win64/make.exe -d -C ide cleanide
However the above only does some clean up and if you want to get lazarus build, then you need to run something like (iirc)
cd D:/luke/lazarus
D:/luke/lazarus/fpc/2.6.0/bin/x86_64-win64/make.exe -C clean bigide
2) Or try to get a newer version of make (gnu make). I am not sure where to look (mingw, gnuwin, cygwin, ...)