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[346/347] g++ -MMD -MF tools/gn/gn_main.o.d  -I/tmp/nix-build-chromium-58.0.3029.96.drv-0/chromium-58.0.3029.96/out_bootstrap/gen -I/tmp/nix-build-chromium-58.0.3029.96.drv-0/chromium-58.0.3029.96 -DNO_TCMALLOC -D__STDC_FORMAT_MACROS -O2 -g0 -D_FILE_OFFSET_BITS=64 -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -pthread -pipe -fno-exceptions -std=c++11 -Wno-c++11-narrowing -c /tmp/nix-build-chromium-58.0.3029.96.drv-0/chromium-58.0.3029.96/tools/gn/gn_main.cc -o tools/gn/gn_main.o
[347/347] g++ -pthread -o gn -Wl,--start-group tools/gn/gn_main.o libevent.a base.a xdg_user_dirs.a gn_lib.a dynamic_annotations.a -Wl,--end-group -lrt -latomic
FAILED: gn 
g++ -pthread -o gn -Wl,--start-group tools/gn/gn_main.o libevent.a base.a xdg_user_dirs.a gn_lib.a dynamic_annotations.a -Wl,--end-group -lrt -latomic
base/threading/thread_task_runner_handle.o: In function `base::ThreadTaskRunnerHandle::OverrideForTesting(scoped_refptr<base::SingleThreadTaskRunner>)':
thread_task_runner_handle.cc:(.text+0x896): undefined reference to `base::ScopedClosureRunner::ScopedClosureRunner(base::Callback<void (), (base::internal::CopyMode)1, (base::internal::RepeatMode)1> const&)'
thread_task_runner_handle.cc:(.text+0x954): undefined reference to `base::ScopedClosureRunner::ScopedClosureRunner(base::Callback<void (), (base::internal::CopyMode)1, (base::internal::RepeatMode)1> const&)'
collect2: error: ld returned 1 exit status
ninja: build stopped: subcommand failed.
Command '['ninja', '-C', '/tmp/nix-build-chromium-58.0.3029.96.drv-0/chromium-58.0.3029.96/out_bootstrap', '-v', 'gn']' returned non-zero exit status 1
Building gn manually in a temporary directory for bootstrapping...
builder for ‘/nix/store/7p2cny23dv78b8qsx7v429mwc45kr1j6-chromium-58.0.3029.96.drv’ failed with exit code 1