CMake Warning at source_subfolder/cmake/OpenCVDetectPython.cmake:81 (message):
  CMake's 'find_host_package(PythonInterp 2.7)' found wrong Python version:

  PYTHON_EXECUTABLE=/opt/pyenv/versions/3.7.5/bin/python

  PYTHON_VERSION_STRING=3.7.5

  Consider providing the 'PYTHON2_EXECUTABLE' variable via CMake command line
  or environment variables

Call Stack (most recent call first):
  source_subfolder/cmake/OpenCVDetectPython.cmake:271 (find_python)
  source_subfolder/CMakeLists.txt:606 (include)


Traceback (most recent call last):
  File "<string>", line 1, in <module>
ModuleNotFoundError: No module named 'numpy'
clang: error: unable to execute command: Terminated
clang: error: clang frontend command failed due to signal (use -v to see invocation)
clang version 3.9.1-17ubuntu1 (tags/RELEASE_391/rc2)
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/modules/ml/CMakeFiles/opencv_ml.dir/src/inner_functions.cpp.o] Error 143
make[1]: *** [source_subfolder/modules/ml/CMakeFiles/opencv_ml.dir/all] Error 2
make[1]: *** 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 3.9.1-17ubuntu1 (tags/RELEASE_391/rc2)
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/modules/imgproc/CMakeFiles/opencv_imgproc.dir/src/canny.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 3.9.1-17ubuntu1 (tags/RELEASE_391/rc2)
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/modules/imgproc/CMakeFiles/opencv_imgproc.dir/src/box_filter.dispatch.cpp.o] Error 143
make[2]: *** [source_subfolder/modules/imgproc/CMakeFiles/opencv_imgproc.dir/src/clahe.cpp.o] Terminated
make[1]: *** [source_subfolder/modules/imgproc/CMakeFiles/opencv_imgproc.dir/all] Terminated
make: *** [all] Error 2
opencv/3.4.12: WARN: Build folder is dirty, removing it: /home/conan/w/cci_PR-3465/.conan/data/opencv/3.4.12/_/_/build/c2b69c712a67072c842c0fe6ec305f71a7fdcf01
opencv/3.4.12: ERROR: Package 'c2b69c712a67072c842c0fe6ec305f71a7fdcf01' build failed
opencv/3.4.12: WARN: Build folder /home/conan/w/cci_PR-3465/.conan/data/opencv/3.4.12/_/_/build/c2b69c712a67072c842c0fe6ec305f71a7fdcf01
ERROR: Exiting with code: 5