CMake Warning: Manually-specified variables were not used by the project: CMAKE_EXPORT_NO_PACKAGE_REGISTRY CMAKE_INSTALL_DATAROOTDIR CMAKE_INSTALL_LIBEXECDIR CMAKE_INSTALL_OLDINCLUDEDIR CMAKE_INSTALL_SBINDIR /home/conan/w/cci_PR-4017/.conan/data/mailio/0.20.0/_/_/build/8ee0a44310e7b9df096e1872400ce20e09c5debd/source_subfolder/src/mime.cpp:820:17: warning: enumeration value 'END' not handled in switch [-Wswitch] switch (state) ^ 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. Terminated make[2]: *** [source_subfolder/CMakeFiles/mailio.dir/src/dialog.cpp.o] Error 143 make[2]: *** Waiting for unfinished jobs.... 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. Terminated make[2]: *** [source_subfolder/CMakeFiles/mailio.dir/src/message.cpp.o] Error 143 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. Terminated make[2]: *** [source_subfolder/CMakeFiles/mailio.dir/src/mime.cpp.o] Error 143 make[1]: *** [source_subfolder/CMakeFiles/mailio.dir/all] Error 2 make: *** [all] Error 2 mailio/0.20.0: ERROR: Package '8ee0a44310e7b9df096e1872400ce20e09c5debd' build failed mailio/0.20.0: WARN: Build folder /home/conan/w/cci_PR-4017/.conan/data/mailio/0.20.0/_/_/build/8ee0a44310e7b9df096e1872400ce20e09c5debd ERROR: Exiting with code: 5