CMake Warning: Manually-specified variables were not used by the project: CMAKE_EXPORT_NO_PACKAGE_REGISTRY CONAN_COMPILER CONAN_COMPILER_VERSION CONAN_CXX_FLAGS CONAN_C_FLAGS CONAN_EXPORTED CONAN_IN_LOCAL_CACHE CONAN_LIBCXX CONAN_SHARED_LINKER_FLAGS clang: error: unable to execute command: Terminated clang: error: clang frontend command failed due to signal (use -v to see invocation) clang version 6.0.0-1ubuntu2 (tags/RELEASE_600/final) Target: x86_64-pc-linux-gnu Thread model: posix InstalledDir: /usr/bin clang: note: diagnostic msg: PLEASE submit a bug report to http://llvm.org/bugs/ and include the crash backtrace, preprocessed source, and associated run script. make[2]: *** [CMakeFiles/Catch2WithMain.dir/src/catch_with_main.cpp.o] Terminated make[1]: *** [CMakeFiles/Catch2WithMain.dir/all] Error 2 make: *** [all] Error 2 catch2/2.13.4: ERROR: Package '5d88dc4b26402479b7aa0fcb29ca9b9c28da4c9f' build failed catch2/2.13.4: WARN: Build folder /home/conan/w/cci_PR-4043/.conan/data/catch2/2.13.4/_/_/build/5d88dc4b26402479b7aa0fcb29ca9b9c28da4c9f ERROR: Exiting with code: 5