these 4 derivations will be built:
  /nix/store/0rhk6mzqb22vsrrch3js998bx5mazjv3-opencv-4.6.0.drv
  /nix/store/bdj6x72gaaq95fwb1248q9kkn1bblamh-frei0r-plugins-1.7.0.drv
  /nix/store/d4cvla9hm4llabard557hiv583vsjzs1-ffmpeg-full-4.4.2.drv
  /nix/store/0i6ac0w1v0ix6clh8l5sj2mllyqiblnn-megasync-4.6.7.0.drv
building '/nix/store/0rhk6mzqb22vsrrch3js998bx5mazjv3-opencv-4.6.0.drv'
opencv-4.6.0> unpacking sources
opencv-4.6.0> unpacking source archive /nix/store/rxsrpwj52mabaiswixsd6pxa4kpyidd3-source
opencv-4.6.0> source root is source
opencv-4.6.0> patching sources
opencv-4.6.0> applying patch /nix/store/q40k4s40abpxl5gavvkbi3ich3znrfmv-cmake-don-t-use-OpenCVFindOpenEXR.patch
opencv-4.6.0> patching file cmake/OpenCVFindLibsGrfmt.cmake
opencv-4.6.0> applying patch /nix/store/xn18kzkfl1851djxky1nc1vghsp5vqfn-cuda_opt_flow.patch
opencv-4.6.0> patching file opencv_contrib/cudaoptflow/CMakeLists.txt
opencv-4.6.0> configuring
opencv-4.6.0> fixing cmake files...
opencv-4.6.0> cmake flags: -DCMAKE_FIND_USE_SYSTEM_PACKAGE_REGISTRY=OFF -DCMAKE_FIND_USE_PACKAGE_REGISTRY=OFF -DCMAKE_EXPORT_NO_PACKAGE_REGISTRY=ON -DCMAKE_BUILD_TYPE=Release -DBUILD_TESTING=OFF -DCMAKE_INSTALL_LOCALEDIR=/nix/store/njjw8136snbylkvlfn8k48s83cp90y98-opencv-4.6.0/share/locale -DCMAKE_INSTALL_LIBEXECDIR=/nix/store/njjw8136snbylkvlfn8k48s83cp90y98-opencv-4.6.0/libexec -DCMAKE_INSTALL_LIBDIR=/nix/store/njjw8136snbylkvlfn8k48s83cp90y98-opencv-4.6.0/lib -DCMAKE_INSTALL_DOCDIR=/nix/store/njjw8136snbylkvlfn8k48s83cp90y98-opencv-4.6.0/share/doc/OpenCV -DCMAKE_INSTALL_INFODIR=/nix/store/njjw8136snbylkvlfn8k48s83cp90y98-opencv-4.6.0/share/info -DCMAKE_INSTALL_MANDIR=/nix/store/njjw8136snbylkvlfn8k48s83cp90y98-opencv-4.6.0/share/man -DCMAKE_INSTALL_OLDINCLUDEDIR=/nix/store/njjw8136snbylkvlfn8k48s83cp90y98-opencv-4.6.0/include -DCMAKE_INSTALL_INCLUDEDIR=/nix/store/njjw8136snbylkvlfn8k48s83cp90y98-opencv-4.6.0/include -DCMAKE_INSTALL_SBINDIR=/nix/store/njjw8136snbylkvlfn8k48s83cp90y98-opencv-4.6.0/sbin -DCMAKE_INSTALL_BINDIR=/nix/store/njjw8136snbylkvlfn8k48s83cp90y98-opencv-4.6.0/bin -DCMAKE_INSTALL_NAME_DIR=/nix/store/njjw8136snbylkvlfn8k48s83cp90y98-opencv-4.6.0/lib -DCMAKE_POLICY_DEFAULT_CMP0025=NEW -DCMAKE_OSX_SYSROOT= -DCMAKE_FIND_FRAMEWORK=LAST -DCMAKE_STRIP=/nix/store/wn31i3dzwahz6ccws8bs1nwyqrpgsvj7-gcc-wrapper-11.3.0/bin/strip -DCMAKE_RANLIB=/nix/store/wn31i3dzwahz6ccws8bs1nwyqrpgsvj7-gcc-wrapper-11.3.0/bin/ranlib -DCMAKE_AR=/nix/store/wn31i3dzwahz6ccws8bs1nwyqrpgsvj7-gcc-wrapper-11.3.0/bin/ar -DCMAKE_C_COMPILER=gcc -DCMAKE_CXX_COMPILER=g++ -DCMAKE_INSTALL_PREFIX=/nix/store/njjw8136snbylkvlfn8k48s83cp90y98-opencv-4.6.0 -DOPENCV_GENERATE_PKGCONFIG=ON -DWITH_OPENMP=ON -DBUILD_PROTOBUF=OFF -DProtobuf_PROTOC_EXECUTABLE=/nix/store/x1qzynkv6f571riddy9c6cf2vk16md71-protobuf-3.21.8/bin/protoc -DPROTOBUF_UPDATE_FILES=ON -DOPENCV_ENABLE_NONFREE=OFF -DBUILD_TESTS=OFF -DBUILD_PERF_TESTS=OFF -DBUILD_DOCS=OFF -DOPENCV_ENABLE_PKG_CONFIG=ON -DWITH_IPP=OFF -DWITH_TIFF=ON -DWITH_WEBP=ON -DWITH_JPEG=ON -DWITH_PNG=ON -DWITH_OPENEXR=ON -DWITH_OPENJPEG=ON -DWITH_JASPER=OFF -DWITH_CUDA=ON -DWITH_CUBLAS=ON -DWITH_TBB=OFF -DCUDA_FAST_MATH=ON -DCUDA_HOST_COMPILER=/nix/store/1m67s7602j83icnz9lpsc6bn1q5ljjgm-gcc-wrapper-11.3.0/bin/cc -DCUDA_NVCC_FLAGS=--expt-relaxed-constexpr -DNVIDIA_OPTICAL_FLOW_2_0_HEADERS_PATH=/nix/store/n9f70cah66zn3fc14jd0yya1fnkhawyb-nvidia-optical-flow-sdk-2.0 -DOPENCL_LIBRARY=/nix/store/86473brxr0x8z46l66cqc5i5r7bvpn7a-ocl-icd-2.3.1/lib/libOpenCL.so -DCUDA_TOOLKIT_ROOT_DIR=/nix/store/8hh12gbw2j8119wawjigcsspbrfrwkmh-cudatoolkit-11.7.0 -DCUDA_HOST_COMPILER=/nix/store/1m67s7602j83icnz9lpsc6bn1q5ljjgm-gcc-wrapper-11.3.0/bin -DOPENCV_EXTRA_MODULES_PATH=/build/source/opencv_contrib
opencv-4.6.0> -- The CXX compiler identification is GNU 11.3.0
opencv-4.6.0> -- The C compiler identification is GNU 11.3.0
opencv-4.6.0> -- Detecting CXX compiler ABI info
opencv-4.6.0> -- Detecting CXX compiler ABI info - done
opencv-4.6.0> -- Check for working CXX compiler: /nix/store/wn31i3dzwahz6ccws8bs1nwyqrpgsvj7-gcc-wrapper-11.3.0/bin/g++ - skipped
opencv-4.6.0> -- Detecting CXX compile features
opencv-4.6.0> -- Detecting CXX compile features - done
opencv-4.6.0> -- Detecting C compiler ABI info
opencv-4.6.0> -- Detecting C compiler ABI info - done
opencv-4.6.0> -- Check for working C compiler: /nix/store/wn31i3dzwahz6ccws8bs1nwyqrpgsvj7-gcc-wrapper-11.3.0/bin/gcc - skipped
opencv-4.6.0> -- Detecting C compile features
opencv-4.6.0> -- Detecting C compile features - done
opencv-4.6.0> -- ocv_init_download: OpenCV source tree is not fetched as git repository. 3rdparty resources will be downloaded from github.com by default.
opencv-4.6.0> -- Detected processor: x86_64
opencv-4.6.0> -- Could NOT find PythonInterp (missing: PYTHON_EXECUTABLE) (Required is at least version "2.7")
opencv-4.6.0> -- Could NOT find PythonInterp (missing: PYTHON_EXECUTABLE) (Required is at least version "3.2")
opencv-4.6.0> -- Looking for ccache - not found
opencv-4.6.0> -- Performing Test HAVE_CXX_FSIGNED_CHAR
opencv-4.6.0> -- Performing Test HAVE_CXX_FSIGNED_CHAR - Success
opencv-4.6.0> -- Performing Test HAVE_C_FSIGNED_CHAR
opencv-4.6.0> -- Performing Test HAVE_C_FSIGNED_CHAR - Success
opencv-4.6.0> -- Performing Test HAVE_CXX_W
opencv-4.6.0> -- Performing Test HAVE_CXX_W - Success
opencv-4.6.0> -- Performing Test HAVE_C_W
opencv-4.6.0> -- Performing Test HAVE_C_W - Success
opencv-4.6.0> -- Performing Test HAVE_CXX_WALL
opencv-4.6.0> -- Performing Test HAVE_CXX_WALL - Success
opencv-4.6.0> -- Performing Test HAVE_C_WALL
opencv-4.6.0> -- Performing Test HAVE_C_WALL - Success
opencv-4.6.0> -- Performing Test HAVE_CXX_WRETURN_TYPE
opencv-4.6.0> -- Performing Test HAVE_CXX_WRETURN_TYPE - Success
opencv-4.6.0> -- Performing Test HAVE_C_WRETURN_TYPE
opencv-4.6.0> -- Performing Test HAVE_C_WRETURN_TYPE - Success
opencv-4.6.0> -- Performing Test HAVE_CXX_WNON_VIRTUAL_DTOR
opencv-4.6.0> -- Performing Test HAVE_CXX_WNON_VIRTUAL_DTOR - Success
opencv-4.6.0> -- Performing Test HAVE_C_WNON_VIRTUAL_DTOR
opencv-4.6.0> -- Performing Test HAVE_C_WNON_VIRTUAL_DTOR - Failed
opencv-4.6.0> -- Performing Test HAVE_CXX_WADDRESS
opencv-4.6.0> -- Performing Test HAVE_CXX_WADDRESS - Success
opencv-4.6.0> -- Performing Test HAVE_C_WADDRESS
opencv-4.6.0> -- Performing Test HAVE_C_WADDRESS - Success
opencv-4.6.0> -- Performing Test HAVE_CXX_WSEQUENCE_POINT
opencv-4.6.0> -- Performing Test HAVE_CXX_WSEQUENCE_POINT - Success
opencv-4.6.0> -- Performing Test HAVE_C_WSEQUENCE_POINT
opencv-4.6.0> -- Performing Test HAVE_C_WSEQUENCE_POINT - Success
opencv-4.6.0> -- Performing Test HAVE_CXX_WFORMAT
opencv-4.6.0> -- Performing Test HAVE_CXX_WFORMAT - Success
opencv-4.6.0> -- Performing Test HAVE_C_WFORMAT
opencv-4.6.0> -- Performing Test HAVE_C_WFORMAT - Success
opencv-4.6.0> -- Performing Test HAVE_CXX_WFORMAT_SECURITY
opencv-4.6.0> -- Performing Test HAVE_CXX_WFORMAT_SECURITY - Success
opencv-4.6.0> -- Performing Test HAVE_C_WFORMAT_SECURITY
opencv-4.6.0> -- Performing Test HAVE_C_WFORMAT_SECURITY - Success
opencv-4.6.0> -- Performing Test HAVE_CXX_WMISSING_DECLARATIONS
opencv-4.6.0> -- Performing Test HAVE_CXX_WMISSING_DECLARATIONS - Success
opencv-4.6.0> -- Performing Test HAVE_C_WMISSING_DECLARATIONS
opencv-4.6.0> -- Performing Test HAVE_C_WMISSING_DECLARATIONS - Success
opencv-4.6.0> -- Performing Test HAVE_CXX_WMISSING_PROTOTYPES
opencv-4.6.0> -- Performing Test HAVE_CXX_WMISSING_PROTOTYPES - Failed
opencv-4.6.0> -- Performing Test HAVE_C_WMISSING_PROTOTYPES
opencv-4.6.0> -- Performing Test HAVE_C_WMISSING_PROTOTYPES - Success
opencv-4.6.0> -- Performing Test HAVE_CXX_WSTRICT_PROTOTYPES
opencv-4.6.0> -- Performing Test HAVE_CXX_WSTRICT_PROTOTYPES - Failed
opencv-4.6.0> -- Performing Test HAVE_C_WSTRICT_PROTOTYPES
opencv-4.6.0> -- Performing Test HAVE_C_WSTRICT_PROTOTYPES - Success
opencv-4.6.0> -- Performing Test HAVE_CXX_WUNDEF
opencv-4.6.0> -- Performing Test HAVE_CXX_WUNDEF - Success
opencv-4.6.0> -- Performing Test HAVE_C_WUNDEF
opencv-4.6.0> -- Performing Test HAVE_C_WUNDEF - Success
opencv-4.6.0> -- Performing Test HAVE_CXX_WINIT_SELF
opencv-4.6.0> -- Performing Test HAVE_CXX_WINIT_SELF - Success
opencv-4.6.0> -- Performing Test HAVE_C_WINIT_SELF
opencv-4.6.0> -- Performing Test HAVE_C_WINIT_SELF - Success
opencv-4.6.0> -- Performing Test HAVE_CXX_WPOINTER_ARITH
opencv-4.6.0> -- Performing Test HAVE_CXX_WPOINTER_ARITH - Success
opencv-4.6.0> -- Performing Test HAVE_C_WPOINTER_ARITH
opencv-4.6.0> -- Performing Test HAVE_C_WPOINTER_ARITH - Success
opencv-4.6.0> -- Performing Test HAVE_CXX_WSHADOW
opencv-4.6.0> -- Performing Test HAVE_CXX_WSHADOW - Success
opencv-4.6.0> -- Performing Test HAVE_C_WSHADOW
opencv-4.6.0> -- Performing Test HAVE_C_WSHADOW - Success
opencv-4.6.0> -- Performing Test HAVE_CXX_WSIGN_PROMO
opencv-4.6.0> -- Performing Test HAVE_CXX_WSIGN_PROMO - Success
opencv-4.6.0> -- Performing Test HAVE_C_WSIGN_PROMO
opencv-4.6.0> -- Performing Test HAVE_C_WSIGN_PROMO - Failed
opencv-4.6.0> -- Performing Test HAVE_CXX_WUNINITIALIZED
opencv-4.6.0> -- Performing Test HAVE_CXX_WUNINITIALIZED - Success
opencv-4.6.0> -- Performing Test HAVE_C_WUNINITIALIZED
opencv-4.6.0> -- Performing Test HAVE_C_WUNINITIALIZED - Success
opencv-4.6.0> -- Performing Test HAVE_CXX_WSUGGEST_OVERRIDE
opencv-4.6.0> -- Performing Test HAVE_CXX_WSUGGEST_OVERRIDE - Success
opencv-4.6.0> -- Performing Test HAVE_C_WSUGGEST_OVERRIDE
opencv-4.6.0> -- Performing Test HAVE_C_WSUGGEST_OVERRIDE - Failed
opencv-4.6.0> -- Performing Test HAVE_CXX_WNO_DELETE_NON_VIRTUAL_DTOR
opencv-4.6.0> -- Performing Test HAVE_CXX_WNO_DELETE_NON_VIRTUAL_DTOR - Success
opencv-4.6.0> -- Performing Test HAVE_C_WNO_DELETE_NON_VIRTUAL_DTOR
opencv-4.6.0> -- Performing Test HAVE_C_WNO_DELETE_NON_VIRTUAL_DTOR - Failed
opencv-4.6.0> -- Performing Test HAVE_CXX_WNO_UNNAMED_TYPE_TEMPLATE_ARGS
opencv-4.6.0> -- Performing Test HAVE_CXX_WNO_UNNAMED_TYPE_TEMPLATE_ARGS - Failed
opencv-4.6.0> -- Performing Test HAVE_C_WNO_UNNAMED_TYPE_TEMPLATE_ARGS
opencv-4.6.0> -- Performing Test HAVE_C_WNO_UNNAMED_TYPE_TEMPLATE_ARGS - Failed
opencv-4.6.0> -- Performing Test HAVE_CXX_WNO_COMMENT
opencv-4.6.0> -- Performing Test HAVE_CXX_WNO_COMMENT - Success
opencv-4.6.0> -- Performing Test HAVE_C_WNO_COMMENT
opencv-4.6.0> -- Performing Test HAVE_C_WNO_COMMENT - Success
opencv-4.6.0> -- Performing Test HAVE_CXX_WIMPLICIT_FALLTHROUGH_3
opencv-4.6.0> -- Performing Test HAVE_CXX_WIMPLICIT_FALLTHROUGH_3 - Success
opencv-4.6.0> -- Performing Test HAVE_C_WIMPLICIT_FALLTHROUGH_3
opencv-4.6.0> -- Performing Test HAVE_C_WIMPLICIT_FALLTHROUGH_3 - Success
opencv-4.6.0> -- Performing Test HAVE_CXX_WNO_STRICT_OVERFLOW
opencv-4.6.0> -- Performing Test HAVE_CXX_WNO_STRICT_OVERFLOW - Success
opencv-4.6.0> -- Performing Test HAVE_C_WNO_STRICT_OVERFLOW
opencv-4.6.0> -- Performing Test HAVE_C_WNO_STRICT_OVERFLOW - Success
opencv-4.6.0> -- Performing Test HAVE_CXX_FDIAGNOSTICS_SHOW_OPTION
opencv-4.6.0> -- Performing Test HAVE_CXX_FDIAGNOSTICS_SHOW_OPTION - Success
opencv-4.6.0> -- Performing Test HAVE_C_FDIAGNOSTICS_SHOW_OPTION
opencv-4.6.0> -- Performing Test HAVE_C_FDIAGNOSTICS_SHOW_OPTION - Success
opencv-4.6.0> -- Performing Test HAVE_CXX_WNO_LONG_LONG
opencv-4.6.0> -- Performing Test HAVE_CXX_WNO_LONG_LONG - Success
opencv-4.6.0> -- Performing Test HAVE_C_WNO_LONG_LONG
opencv-4.6.0> -- Performing Test HAVE_C_WNO_LONG_LONG - Success
opencv-4.6.0> -- Performing Test HAVE_CXX_PTHREAD
opencv-4.6.0> -- Performing Test HAVE_CXX_PTHREAD - Success
opencv-4.6.0> -- Performing Test HAVE_C_PTHREAD
opencv-4.6.0> -- Performing Test HAVE_C_PTHREAD - Success
opencv-4.6.0> -- Performing Test HAVE_CXX_FOMIT_FRAME_POINTER
opencv-4.6.0> -- Performing Test HAVE_CXX_FOMIT_FRAME_POINTER - Success
opencv-4.6.0> -- Performing Test HAVE_C_FOMIT_FRAME_POINTER
opencv-4.6.0> -- Performing Test HAVE_C_FOMIT_FRAME_POINTER - Success
opencv-4.6.0> -- Performing Test HAVE_CXX_FFUNCTION_SECTIONS
opencv-4.6.0> -- Performing Test HAVE_CXX_FFUNCTION_SECTIONS - Success
opencv-4.6.0> -- Performing Test HAVE_C_FFUNCTION_SECTIONS
opencv-4.6.0> -- Performing Test HAVE_C_FFUNCTION_SECTIONS - Success
opencv-4.6.0> -- Performing Test HAVE_CXX_FDATA_SECTIONS
opencv-4.6.0> -- Performing Test HAVE_CXX_FDATA_SECTIONS - Success
opencv-4.6.0> -- Performing Test HAVE_C_FDATA_SECTIONS
opencv-4.6.0> -- Performing Test HAVE_C_FDATA_SECTIONS - Success
opencv-4.6.0> -- Performing Test HAVE_CXX_MSSE (check file: cmake/checks/cpu_sse.cpp)
opencv-4.6.0> -- Performing Test HAVE_CXX_MSSE - Success
opencv-4.6.0> -- Performing Test HAVE_CXX_MSSE2 (check file: cmake/checks/cpu_sse2.cpp)
opencv-4.6.0> -- Performing Test HAVE_CXX_MSSE2 - Success
opencv-4.6.0> -- Performing Test HAVE_CXX_MSSE3 (check file: cmake/checks/cpu_sse3.cpp)
opencv-4.6.0> -- Performing Test HAVE_CXX_MSSE3 - Success
opencv-4.6.0> -- Performing Test HAVE_CXX_MSSSE3 (check file: cmake/checks/cpu_ssse3.cpp)
opencv-4.6.0> -- Performing Test HAVE_CXX_MSSSE3 - Success
opencv-4.6.0> -- Performing Test HAVE_CXX_MSSE4_1 (check file: cmake/checks/cpu_sse41.cpp)
opencv-4.6.0> -- Performing Test HAVE_CXX_MSSE4_1 - Success
opencv-4.6.0> -- Performing Test HAVE_CXX_MPOPCNT (check file: cmake/checks/cpu_popcnt.cpp)
opencv-4.6.0> -- Performing Test HAVE_CXX_MPOPCNT - Success
opencv-4.6.0> -- Performing Test HAVE_CXX_MSSE4_2 (check file: cmake/checks/cpu_sse42.cpp)
opencv-4.6.0> -- Performing Test HAVE_CXX_MSSE4_2 - Success
opencv-4.6.0> -- Performing Test HAVE_CXX_MF16C (check file: cmake/checks/cpu_fp16.cpp)
opencv-4.6.0> -- Performing Test HAVE_CXX_MF16C - Success
opencv-4.6.0> -- Performing Test HAVE_CXX_MFMA
opencv-4.6.0> -- Performing Test HAVE_CXX_MFMA - Success
opencv-4.6.0> -- Performing Test HAVE_CXX_MAVX (check file: cmake/checks/cpu_avx.cpp)
opencv-4.6.0> -- Performing Test HAVE_CXX_MAVX - Success
opencv-4.6.0> -- Performing Test HAVE_CXX_MAVX2 (check file: cmake/checks/cpu_avx2.cpp)
opencv-4.6.0> -- Performing Test HAVE_CXX_MAVX2 - Success
opencv-4.6.0> -- Performing Test HAVE_CXX_MAVX512F (check file: cmake/checks/cpu_avx512.cpp)
opencv-4.6.0> -- Performing Test HAVE_CXX_MAVX512F - Success
opencv-4.6.0> -- Performing Test HAVE_CXX_MAVX512F_MAVX512CD (check file: cmake/checks/cpu_avx512common.cpp)
opencv-4.6.0> -- Performing Test HAVE_CXX_MAVX512F_MAVX512CD - Success
opencv-4.6.0> -- Performing Test HAVE_CXX_MAVX512F_MAVX512CD_MAVX512VL_MAVX512BW_MAVX512DQ (check file: cmake/checks/cpu_avx512skx.cpp)
opencv-4.6.0> -- Performing Test HAVE_CXX_MAVX512F_MAVX512CD_MAVX512VL_MAVX512BW_MAVX512DQ - Success
opencv-4.6.0> -- Performing Test HAVE_CPU_BASELINE_FLAGS
opencv-4.6.0> -- Performing Test HAVE_CPU_BASELINE_FLAGS - Success
opencv-4.6.0> -- Performing Test HAVE_CPU_DISPATCH_FLAGS_SSE4_1
opencv-4.6.0> -- Performing Test HAVE_CPU_DISPATCH_FLAGS_SSE4_1 - Success
opencv-4.6.0> -- Performing Test HAVE_CPU_DISPATCH_FLAGS_SSE4_2
opencv-4.6.0> -- Performing Test HAVE_CPU_DISPATCH_FLAGS_SSE4_2 - Success
opencv-4.6.0> -- Performing Test HAVE_CPU_DISPATCH_FLAGS_FP16
opencv-4.6.0> -- Performing Test HAVE_CPU_DISPATCH_FLAGS_FP16 - Success
opencv-4.6.0> -- Performing Test HAVE_CPU_DISPATCH_FLAGS_AVX
opencv-4.6.0> -- Performing Test HAVE_CPU_DISPATCH_FLAGS_AVX - Success
opencv-4.6.0> -- Performing Test HAVE_CPU_DISPATCH_FLAGS_AVX2
opencv-4.6.0> -- Performing Test HAVE_CPU_DISPATCH_FLAGS_AVX2 - Success
opencv-4.6.0> -- Performing Test HAVE_CPU_DISPATCH_FLAGS_AVX512_SKX
opencv-4.6.0> -- Performing Test HAVE_CPU_DISPATCH_FLAGS_AVX512_SKX - Success
opencv-4.6.0> -- Performing Test HAVE_CXX_FVISIBILITY_HIDDEN
opencv-4.6.0> -- Performing Test HAVE_CXX_FVISIBILITY_HIDDEN - Success
opencv-4.6.0> -- Performing Test HAVE_C_FVISIBILITY_HIDDEN
opencv-4.6.0> -- Performing Test HAVE_C_FVISIBILITY_HIDDEN - Success
opencv-4.6.0> -- Performing Test HAVE_CXX_FVISIBILITY_INLINES_HIDDEN


nixbot: build timed out after 10800s