ninja: Entering directory `out/gn'
[0/1] Regenerating ninja files
[1/2417] ACTION //llvm/tools/llvm-objdump:llvm-otool(//llvm/utils/gn/build/toolchain:unix)
[2/2417] ACTION //llvm/lib/Transforms/IPO:write_instrumentor_variables(//llvm/utils/gn/build/toolchain:unix)
FAILED: gen/llvm/include/llvm/Transforms/IPO/InstrumentorVariables.inc 
python3 ../../llvm/utils/gn/build/write_cmake_config.py -o gen/llvm/include/llvm/Transforms/IPO/InstrumentorVariables.inc ../../llvm/include/llvm/Transforms/IPO/InstrumentorVariables.inc.in LLVM_INSTRUMENTOR_RUNTIME_HELPER=@file:/usr/local/google/home/thakis/src/llvm-project/out/gn
Traceback (most recent call last):
  File "/usr/local/google/home/thakis/src/llvm-project/out/gn/../../llvm/utils/gn/build/write_cmake_config.py", line 126, in <module>
    sys.exit(main())
             ~~~~^^
  File "/usr/local/google/home/thakis/src/llvm-project/out/gn/../../llvm/utils/gn/build/write_cmake_config.py", line 58, in main
    with open(file_path) as f:
         ~~~~^^^^^^^^^^^
IsADirectoryError: [Errno 21] Is a directory: '/usr/local/google/home/thakis/src/llvm-project/out/gn'
[3/2417] CXX obj/llvm/lib/Transforms/Vectorize/Vectorize.LoopVectorizationPlanner.o
[4/2417] CXX obj/llvm/unittests/Transforms/Vectorize/VectorizeTests.VPlanPatternMatchTest.o
[5/2417] CXX obj/llvm/unittests/Transforms/Vectorize/VectorizeTests.VPlanUncountableExitTest.o
[6/2417] CXX obj/llvm/lib/Transforms/Vectorize/Vectorize.VPlanVerifier.o
[7/2417] CXX obj/llvm/unittests/Transforms/Vectorize/VectorizeTests.VPlanHCFGTest.o
[8/2417] CXX obj/llvm/lib/Transforms/Vectorize/Vectorize.VPlanAnalysis.o
[9/2417] CXX obj/llvm/unittests/Transforms/Vectorize/VectorizeTests.VPDomTreeTest.o
[10/2417] CXX obj/llvm/unittests/Transforms/Vectorize/VectorizeTests.VPlanVerifierTest.o
[11/2417] CXX obj/llvm/lib/Transforms/Vectorize/Vectorize.LoopVectorizationLegality.o
[12/2417] CXX obj/llvm/lib/Transforms/Vectorize/Vectorize.VPlanPredicator.o
[13/2417] CXX obj/llvm/unittests/Transforms/Vectorize/VectorizeTests.VPPostDomFrontierTest.o
[14/2417] CXX obj/llvm/lib/Transforms/Vectorize/Vectorize.VPlanUtils.o
[15/2417] CXX obj/llvm/lib/Transforms/Vectorize/Vectorize.VPlanUnroll.o
[16/2417] CXX obj/llvm/lib/Transforms/Vectorize/Vectorize.VPlanConstruction.o
[17/2417] CXX obj/llvm/lib/Transforms/Vectorize/Vectorize.VPlan.o
[18/2417] CXX obj/llvm/lib/Transforms/Vectorize/Vectorize.VPlanRecipes.o
[19/2417] CXX obj/llvm/unittests/Transforms/Vectorize/VectorizeTests.VPlanTest.o
[20/2417] CXX obj/llvm/lib/Transforms/Vectorize/Vectorize.LoopVectorize.o
[21/2417] CXX obj/llvm/lib/Transforms/Vectorize/Vectorize.VPlanTransforms.o
ninja: build stopped: subcommand failed.
Command '['ninja', '-C', 'out/gn']' returned non-zero exit status 1.