ninja: Entering directory `out/gn'
[1/6] ACTION //libcxx/include:write_modulemap(//llvm/utils/gn/build/toolchain:unix)
[2/6] COPY ../../libcxx/include/__flat_map/flat_map.h include/c++/v1/__flat_map/flat_map.h
[3/6] COPY ../../libcxx/include/__flat_map/flat_multimap.h include/c++/v1/__flat_map/flat_multimap.h
[4/6] COPY ../../libcxx/include/__flat_map/key_value_iterator.h include/c++/v1/__flat_map/key_value_iterator.h
[5/6] COPY ../../libcxx/include/__flat_set/flat_set.h include/c++/v1/__flat_set/flat_set.h
[6/6] COPY ../../libcxx/include/__flat_set/flat_multiset.h include/c++/v1/__flat_set/flat_multiset.h