ninja: Entering directory `out/gn'
[0/1] Regenerating ninja files
[1/2604] COPY ../../libcxxabi/include/__cxxabi_config.h include/c++/v1/__cxxabi_config.h
[2/2604] COPY ../../libcxxabi/include/cxxabi.h include/c++/v1/cxxabi.h
[3/2604] 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'
[4/2604] ACTION //libcxx/include:copy_headers(//llvm/utils/gn/build/toolchain:unix)
[5/2604] ACTION //llvm/tools/llvm-exegesis/lib/AArch64:AArch64GenExegesis(//llvm/utils/gn/build/toolchain:unix)
[6/2604] ACTION //llvm/include/llvm/TargetParser:AArch64TargetParserDef(//llvm/utils/gn/build/toolchain:unix)
[7/2457] ACTION //llvm/lib/Target/AArch64:AArch64GenMCPseudoLowering(//llvm/utils/gn/build/toolchain:unix)
[8/2457] ACTION //llvm/lib/Target/AArch64:AArch64GenSDNodeInfo(//llvm/utils/gn/build/toolchain:unix)
[9/2457] ACTION //llvm/lib/Target/AArch64:AArch64GenPostLegalizeGILowering(//llvm/utils/gn/build/toolchain:unix)
[10/2457] ACTION //llvm/lib/Target/AArch64:AArch64GenPostLegalizeGICombiner(//llvm/utils/gn/build/toolchain:unix)
[11/2457] ACTION //llvm/lib/Target/AArch64:AArch64GenPreLegalizeGICombiner(//llvm/utils/gn/build/toolchain:unix)
[12/2457] ACTION //llvm/lib/Target/AArch64:AArch64GenO0PreLegalizeGICombiner(//llvm/utils/gn/build/toolchain:unix)
[13/2457] ACTION //llvm/lib/Target/AArch64/MCTargetDesc:AArch64GenMCCodeEmitter(//llvm/utils/gn/build/toolchain:unix)
[14/2457] ACTION //llvm/lib/Target/AArch64:AArch64GenCallingConv(//llvm/utils/gn/build/toolchain:unix)
[15/2457] ACTION //llvm/lib/Target/AArch64/Disassembler:AArch64GenDisassemblerTables(//llvm/utils/gn/build/toolchain:unix)
[16/2457] ACTION //llvm/lib/Target/AArch64:AArch64GenRegisterBank(//llvm/utils/gn/build/toolchain:unix)
[17/2457] ACTION //llvm/lib/Target/AArch64/MCTargetDesc:AArch64GenAsmWriter(//llvm/utils/gn/build/toolchain:unix)
[18/2457] ACTION //llvm/lib/Target/AArch64/MCTargetDesc:AArch64GenAsmWriter1(//llvm/utils/gn/build/toolchain:unix)
[19/2457] ACTION //llvm/lib/Target/AArch64/Utils:AArch64GenSystemOperands(//llvm/utils/gn/build/toolchain:unix)
[20/2457] ACTION //llvm/lib/Target/AArch64/MCTargetDesc:AArch64GenRegisterInfo(//llvm/utils/gn/build/toolchain:unix)
[21/2457] ACTION //llvm/lib/Target/AArch64/AsmParser:AArch64GenAsmMatcher(//llvm/utils/gn/build/toolchain:unix)
[22/2457] ACTION //llvm/lib/Target/AArch64:AArch64GenFastISel(//llvm/utils/gn/build/toolchain:unix)
[23/2457] ACTION //llvm/lib/Target/AArch64:AArch64GenGlobalISel(//llvm/utils/gn/build/toolchain:unix)
[24/2457] ACTION //llvm/lib/Target/AArch64:AArch64GenDAGISel(//llvm/utils/gn/build/toolchain:unix)
[25/2457] ACTION //llvm/lib/Target/AArch64/MCTargetDesc:AArch64GenSubtargetInfo(//llvm/utils/gn/build/toolchain:unix)
[26/2457] ACTION //llvm/lib/Target/AArch64/MCTargetDesc:AArch64GenInstrInfo(//llvm/utils/gn/build/toolchain:unix)
ninja: build stopped: subcommand failed.
Command '['ninja', '-C', 'out/gn']' returned non-zero exit status 1.