ninja: Entering directory `out/gn'
[1/7] CXX obj/llvm/lib/Telemetry/Telemetry.Telemetry.o
In file included from ../../llvm/lib/Telemetry/Telemetry.cpp:14:
../../llvm/include/llvm/Telemetry/Telemetry.h:152:52: warning: non-void function does not return a value [-Wreturn-type]
  virtual Error preDispatch(TelemetryInfo *Entry) {}
                                                   ^
1 warning generated.
[2/7] AR lib/libLLVMTelemetry.a
[3/7] CXX obj/llvm/unittests/Telemetry/TelemetryTests.TelemetryTest.o
In file included from ../../llvm/unittests/Telemetry/TelemetryTest.cpp:9:
../../llvm/include/llvm/Telemetry/Telemetry.h:152:52: warning: non-void function does not return a value [-Wreturn-type]
  virtual Error preDispatch(TelemetryInfo *Entry) {}
                                                   ^
1 warning generated.
[4/7] LINK obj/llvm/unittests/Telemetry/TelemetryTests
[5/7] STAMP obj/llvm/unittests/unittests.stamp
[6/7] STAMP obj/llvm/test/test.stamp
[7/7] STAMP obj/default.stamp