llvm dev - Feb 2019 - Error while building test-suite with SPEC CPU2017

I'm trying to build LLVM test-suite with SPEC CPU2017, but I'm getting
the
following error at the very last step of the build:

Error copying directory from
"/usr/local/google/home/phosek/clang-llvm/llvm-test-suite/test-suite-externals/speccpu2017/benchspec/CPU/526.blender_r/data/all/input"
to
"/usr/local/google/home/phosek/clang-llvm/test-suite-build/External/SPEC/CFP2017rate/526.blender_r/run_train".

I checked the SPEC CPU2017 source tree and
benchspec/CPU/526.blender_r/data/all/input indeed doesn't exist. I tried
re-downloading the latest version (1.0.5) and doing a fresh installation,
but I'm still missing that directory.

Is there else anything I'm missing or is this a bug in the test-suite build?
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