ninja: Entering directory `out/gn'
[0/1] Regenerating ninja files
[1/2432] COPY ../../libcxxabi/include/__cxxabi_config.h include/c++/v1/__cxxabi_config.h
[2/2432] COPY ../../libcxxabi/include/cxxabi.h include/c++/v1/cxxabi.h
[3/2432] AR lib/liblldbPluginDynamicLoaderWindowsDYLD.a
[4/2432] AR lib/liblldbPluginDynamicLoaderStatic.a
[5/2432] AR lib/liblldbPluginArchitecturePPC64.a
[6/2432] AR lib/liblldbPluginObjectContainerMachOFileset.a
[7/2432] AR lib/liblldbPluginObjCPlusPlusLanguage.a
[8/2432] AR lib/liblldbPluginObjCRuntime.a
[9/2432] AR lib/liblldbPluginObjectContainerMachOArchive.a
[10/2432] AR lib/liblldbPluginABIX86.a
[11/2432] AR lib/liblldbPluginObjectFileELF.a
[12/2432] AR lib/liblldbPluginObjectFilePECOFF.a
[13/2432] AR lib/liblldbPluginObjectFileMachO.a
[14/2432] AR lib/liblldbPluginObjectFilePlaceholder.a
[15/2432] AR lib/liblldbPluginUnwindAssemblyInstEmulation.a
[16/2432] AR lib/liblldbPluginUnwindAssemblyX86.a
[17/2432] AR lib/liblldbPluginSymbolVendorELF.a
[18/2432] AR lib/liblldbPluginSymbolVendorPECOFF.a
[19/2432] AR lib/liblldbBreakpoint.a
[20/2432] AR lib/liblldbPluginProcessLinux.a
[21/2432] AR lib/liblldbPluginPlatformGDB.a
[22/2432] AR lib/liblldbPluginJITLoaderGDB.a
[23/2432] AR lib/liblldbPluginDynamicLoaderDarwinKernel.a
[24/2432] AR lib/liblldbPluginCPPRuntime.a
[25/2432] AR lib/liblldbPluginDynamicLoaderPosixDYLD.a
[26/2432] AR lib/liblldbPluginPlatformWindows.a
[27/2432] AR lib/liblldbPluginProcessElfCore.a
[28/2432] AR lib/liblldbPluginProcessMinidump.a
[29/2432] 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'
[30/2432] AR lib/libclangDaemon.a
[31/2432] ACTION //libcxx/include:copy_headers(//llvm/utils/gn/build/toolchain:unix)
[32/2432] LINK ./bin/clang-tidy
ninja: build stopped: subcommand failed.
Command '['ninja', '-C', 'out/gn']' returned non-zero exit status 1.