ninja: Entering directory `out/gn'
[1/5] COPY ../../libcxx/include/__fwd/pair.h include/c++/v1/__fwd/pair.h
[2/5] COPY ../../libcxx/include/__memory/uses_allocator_construction.h include/c++/v1/__memory/uses_allocator_construction.h
[3/5] COPY ../../libcxx/include/__tree include/c++/v1/__tree
[4/5] COPY ../../libcxx/include/map include/c++/v1/map
[5/5] COPY ../../libcxx/include/__node_handle include/c++/v1/__node_handle