ninja: Entering directory `out/gn'
[0/1] Regenerating ninja files
[1/7300] COPY ../../libcxxabi/include/__cxxabi_config.h include/c++/v1/__cxxabi_config.h
[2/7300] COPY ../../libcxxabi/include/cxxabi.h include/c++/v1/cxxabi.h
[3/7300] AR lib/libLLVMSupport.a
[4/7300] AR lib/libgtest_main.a
[5/7300] ACTION //clang/include/clang/Config:Config(//llvm/utils/gn/build/toolchain:unix)
[6/7300] LINK ./bin/llvm-undname
[7/7300] LINK ./bin/clang-tidy-confusable-chars-gen
[8/7300] 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'
[9/7300] LINK obj/llvm/unittests/LineEditor/LineEditorTests
[10/7300] LINK obj/llvm/unittests/DebugInfo/MSF/DebugInfoMSFTests
[11/7300] LINK obj/llvm/unittests/HTTP/HTTPTests
[12/7300] LINK ./bin/not
[13/7300] LINK obj/llvm/unittests/Bitstream/BitstreamTests
[14/7300] LINK ./bin/yaml-bench
[15/7300] LINK obj/llvm/unittests/Testing/ADT/TestingADTTests
[16/7300] LINK ./bin/lldb-tblgen
[17/7300] LINK ./bin/lldb-argdumper
[18/7300] LINK ./bin/FileCheck
[19/7300] LINK obj/llvm/unittests/FileCheck/FileCheckTests
[20/7300] LINK obj/llvm/unittests/Demangle/DemangleTests
[21/7300] LINK obj/llvm/unittests/CAS/CASTests
[22/7300] LINK ./bin/clang-tblgen
[23/7300] LINK obj/llvm/unittests/DebugInfo/CodeView/DebugInfoCodeViewTests
[24/7300] LINK obj/llvm/unittests/Support/LSP/LSPTests
[25/7300] LINK obj/llvm/unittests/Testing/Support/TestingSupportTests
[26/7300] LINK ./bin/split-file
[27/7300] LINK obj/llvm/unittests/Support/DynamicLibrary/DynamicLibraryTests
[28/7300] LINK ./bin/llvm-min-tblgen
[29/7300] ACTION //clang-tools-extra/clang-tidy/misc:Confusables.inc(//llvm/utils/gn/build/toolchain:unix)
[30/7300] ACTION //libcxx/include:copy_headers(//llvm/utils/gn/build/toolchain:unix)
ninja: build stopped: subcommand failed.
Command '['ninja', '-C', 'out/gn']' returned non-zero exit status 1.