bsoncxx version: 3.6.1
found libbson version 
mongocxx version: 3.6.1
found libmongoc version 1.17.2
CMake Warning:
  Manually-specified variables were not used by the project:

    CMAKE_EXPORT_NO_PACKAGE_REGISTRY


clang: error: unable to execute command: Terminated: 15
clang: error: clang frontend command failed due to signal (use -v to see invocation)
Apple LLVM version 9.1.0 (clang-902.0.39.2)
Target: x86_64-apple-darwin18.2.0
Thread model: posix
InstalledDir: /Applications/Xcode-9.4.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin
clang: note: diagnostic msg: PLEASE submit a bug report to http://developer.apple.com/bugreporter/ and include the crash backtrace, preprocessed source, and associated run script.
make[2]: *** [source_subfolder/src/bsoncxx/CMakeFiles/bsoncxx_shared.dir/document/view.cpp.o] Terminated: 15
make[2]: *** Waiting for unfinished jobs....
make[2]: *** [source_subfolder/src/bsoncxx/CMakeFiles/bsoncxx_testing.dir/json.cpp.o] Terminated: 15
make[2]: *** Waiting for unfinished jobs....
make[2]: *** [source_subfolder/src/bsoncxx/CMakeFiles/bsoncxx_shared.dir/exception/error_code.cpp.o] Terminated: 15
make[2]: *** [source_subfolder/src/bsoncxx/CMakeFiles/bsoncxx_shared.dir/json.cpp.o] Terminated: 15
make[2]: *** [source_subfolder/src/bsoncxx/CMakeFiles/bsoncxx_shared.dir/oid.cpp.o] Terminated: 15
make[1]: *** [source_subfolder/src/bsoncxx/CMakeFiles/bsoncxx_shared.dir/all] Error 2
make[1]: *** Waiting for unfinished jobs....
make[2]: *** [source_subfolder/src/bsoncxx/CMakeFiles/bsoncxx_testing.dir/string/view_or_value.cpp.o] Terminated: 15
make[2]: *** [source_subfolder/src/bsoncxx/CMakeFiles/bsoncxx_testing.dir/types.cpp.o] Terminated: 15
make[2]: *** [source_subfolder/src/bsoncxx/CMakeFiles/bsoncxx_testing.dir/types/bson_value/value.cpp.o] Terminated: 15
make[2]: *** [source_subfolder/src/bsoncxx/CMakeFiles/bsoncxx_testing.dir/types/bson_value/view.cpp.o] Terminated: 15
make[1]: *** [source_subfolder/src/bsoncxx/CMakeFiles/bsoncxx_testing.dir/all] Terminated: 15
make: *** [all] Terminated: 15
mongo-cxx-driver/3.6.1: WARN: Build folder is dirty, removing it: /Users/jenkins/w/cci_PR-3681@4/.conan/data/mongo-cxx-driver/3.6.1/_/_/build/6b765922ea69c1225ac780814f82afa65847ebe6
ERROR: Exiting with code: 5