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


g++: internal compiler error: Terminated (program cc1plus)
Please submit a full bug report,
with preprocessed source if appropriate.
See <file:///usr/share/doc/gcc-6/README.Bugs> for instructions.
make[2]: *** [source_subfolder/src/mongocxx/CMakeFiles/mongocxx_mocked.dir/options/client_encryption.cpp.o] Error 4
make[1]: *** [source_subfolder/src/mongocxx/CMakeFiles/mongocxx_mocked.dir/all] Error 2
make[1]: *** Waiting for unfinished jobs....
g++: internal compiler error: Terminated (program cc1plus)
Please submit a full bug report,
with preprocessed source if appropriate.
See <file:///usr/share/doc/gcc-6/README.Bugs> for instructions.
make[2]: *** [source_subfolder/src/mongocxx/CMakeFiles/mongocxx_static.dir/options/gridfs/bucket.cpp.o] Error 4
make[2]: *** Waiting for unfinished jobs....
g++: internal compiler error: Terminated (program cc1plus)
Please submit a full bug report,
with preprocessed source if appropriate.
See <file:///usr/share/doc/gcc-6/README.Bugs> for instructions.
make[2]: *** [source_subfolder/src/mongocxx/CMakeFiles/mongocxx_static.dir/options/gridfs/upload.cpp.o] Error 4
make[2]: *** [source_subfolder/src/mongocxx/CMakeFiles/mongocxx_static.dir/options/index.cpp.o] Terminated
make[1]: *** [source_subfolder/src/mongocxx/CMakeFiles/mongocxx_static.dir/all] Terminated
make: *** [all] Error 2
mongo-cxx-driver/3.6.1: ERROR: Package '56c08ee109319b1d847301c2b47b8e8d8dade64a' build failed
mongo-cxx-driver/3.6.1: WARN: Build folder /home/conan/w/cci_PR-3681/.conan/data/mongo-cxx-driver/3.6.1/_/_/build/56c08ee109319b1d847301c2b47b8e8d8dade64a
ERROR: Exiting with code: 5