windows-x86_64-head (Windows/x86_64 HEAD (Gabor Pali)), build 2, Failure

[Builder]

windows-x86_64-head (Windows/x86_64 HEAD (Gabor Pali)), build 2

Build failed
Details: http://haskell.inf.elte.hu/builders/windows-x86_64-head/2.html

git clone                    | Success
create mk/build.mk           | Success
get subrepos                 | Success
repo versions                | Success
touching clean-check files   | Success
setting version date         | Success
booting                      | Success
configuring                  | Success
creating check-remove-before | Success
compiling                    | Success
creating check-remove-after  | Success
compiling testremove         | Success
simulating clean             | Success
checking clean               | Success
making bindist               | Success
making srcdist               | Failure: Just (ExitFailure 2)

Build failed
Details: http://haskell.inf.elte.hu/builders/windows-x86_64-head/2.html

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ghc.mk:690: driver/haddock/ghc.mk: No such file or directory
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ghc.mk:690: libraries/integer-gmp/gmp/ghc.mk: No such file or directory
ghc.mk:690: libraries/integer-gmp/mkGmpDerivedConstants/ghc.mk: No such file or directory
ghc.mk:690: utils/haddock/ghc.mk: No such file or directory
ghc.mk:690: utils/haddock/doc/ghc.mk: No such file or directory
ghc.mk:690: utils/hsc2hs/ghc.mk: No such file or directory
ghc.mk:690: utils/ghc-pkg/ghc.mk: No such file or directory
ghc.mk:690: utils/testremove/ghc.mk: No such file or directory
ghc.mk:690: utils/ghctags/ghc.mk: No such file or directory
ghc.mk:690: utils/dll-split/ghc.mk: No such file or directory
ghc.mk:690: utils/ghc-pwd/ghc.mk: No such file or directory
ghc.mk:690: utils/ghc-cabal/ghc.mk: No such file or directory
ghc.mk:690: utils/hpc/ghc.mk: No such file or directory
ghc.mk:690: utils/runghc/ghc.mk: No such file or directory
ghc/ghc.mk:115: warning: overriding recipe for target 'inplace/bin/'
ghc/ghc.mk:114: warning: ignoring old recipe for target 'inplace/bin/'
ghc.mk:690: utils/mkUserGuidePart/ghc.mk: No such file or directory
ghc.mk:690: docs/users_guide/ghc.mk: No such file or directory
ghc.mk:690: docs/man/ghc.mk: No such file or directory
ghc.mk:690: utils/count_lines/ghc.mk: No such file or directory
ghc.mk:690: utils/compare_sizes/ghc.mk: No such file or directory
make[3]: *** No rule to make target 'utils/compare_sizes/ghc.mk'.  Stop.
Makefile:94: recipe for target 'distclean' failed
make[2]: *** [distclean] Error 2
ghc.mk:1127: recipe for target 'sdist-ghc-prep' failed
make[1]: *** [sdist-ghc-prep] Error 2
Makefile:71: recipe for target 'sdist' failed
make: *** [sdist] Error 2
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