********************************************************************************
conan test cci-2222eac8/recipes/dlib/all/test_package/conanfile.py dlib/19.24.2@#d41549548fcc353e50ec9d97f2a0ad65 -pr /home/conan/w/prod-v1/bsr/26632/bddfa/profile_linux_5_libstdcpp11_gcc_release_64.dlib-shared-False.txt -c tools.system.package_manager:mode=install -c tools.system.package_manager:sudo=True
********************************************************************************
Configuration:
[settings]
arch=x86_64
build_type=Release
compiler=gcc
compiler.libcxx=libstdc++11
compiler.version=5
os=Linux
[options]
dlib:shared=False
[build_requires]
[env]
[conf]
tools.system.package_manager:mode=install
tools.system.package_manager:sudo=True

Version ranges solved
    Version range '>=1.2.11 <2' required by 'libpng/1.6.40' resolved to 'zlib/1.3' in local cache

dlib/19.24.2 (test package): Installing package
Requirements
    dlib/19.24.2 from local cache - Cache
    giflib/5.2.1 from 'conan-center' - Cache
    libjpeg/9e from 'conan-center' - Cache
    libpng/1.6.40 from 'conan-center' - Cache
    libwebp/1.3.2 from 'conan-center' - Cache
    openblas/0.3.20 from 'conan-center' - Cache
    sqlite3/3.43.1 from 'conan-center' - Cache
    zlib/1.3 from 'conan-center' - Cache
Packages
    dlib/19.24.2:4c80a5d472fec493d3ce431bc2871c7ebec1987f - Cache
    giflib/5.2.1:c8ae336fc6ee014197c22025f211efb2f189136e - Cache
    libjpeg/9e:76f87539fc90ff313e0b3182641a9bb558a717d2 - Cache
    libpng/1.6.40:b4e19c2a9f411079edce0e39c7f8fa0db025a2ad - Cache
    libwebp/1.3.2:9914f4fbedcef15a1908dc721c310d135acd4987 - Cache
    openblas/0.3.20:33f483781dd6ae6d66a80240eeb210a0986be6ef - Cache
    sqlite3/3.43.1:bc01b0a8d9a484b3b4226ef647e2ba7dd5b627ed - Cache
    zlib/1.3:76f87539fc90ff313e0b3182641a9bb558a717d2 - Cache

Installing (downloading, building) binaries...
giflib/5.2.1: Already installed!
libjpeg/9e: Already installed!
libwebp/1.3.2: Already installed!
openblas/0.3.20: Already installed!
openblas/0.3.20: Setting OpenBLAS_HOME environment variable: /home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/openblas/0.3.20/_/_/package/33f483781dd6ae6d66a80240eeb210a0986be6ef
sqlite3/3.43.1: Already installed!
zlib/1.3: Already installed!
libpng/1.6.40: Already installed!
dlib/19.24.2: Already installed!
dlib/19.24.2 (test package): Generator txt created conanbuildinfo.txt
dlib/19.24.2 (test package): Generator 'CMakeDeps' calling 'generate()'
dlib/19.24.2 (test package): Generator 'VirtualRunEnv' calling 'generate()'
dlib/19.24.2 (test package): Generator 'CMakeToolchain' calling 'generate()'
dlib/19.24.2 (test package): Preset 'release' added to CMakePresets.json. Invoke it manually using 'cmake --preset release'
dlib/19.24.2 (test package): If your CMake version is not compatible with CMakePresets (<3.19) call cmake like: 'cmake <path> -G "Unix Makefiles" -DCMAKE_TOOLCHAIN_FILE=/home/conan/w/prod-v1/bsr/cci-2222eac8/recipes/dlib/all/test_package/build/Release/generators/conan_toolchain.cmake -DCMAKE_POLICY_DEFAULT_CMP0091=NEW -DCMAKE_BUILD_TYPE=Release'
dlib/19.24.2 (test package): Aggregating env generators
dlib/19.24.2 (test package): Generated conaninfo.txt
dlib/19.24.2 (test package): Generated graphinfo
Using lockfile: '/home/conan/w/prod-v1/bsr/cci-2222eac8/recipes/dlib/all/test_package/build/Release/generators/conan.lock'
Using cached profile from lockfile
[HOOK - conan-center.py] pre_build(): [FPIC MANAGEMENT (KB-H007)] 'fPIC' option not found
[HOOK - conan-center.py] pre_build(): [FPIC MANAGEMENT (KB-H007)] OK
dlib/19.24.2 (test package): Calling build()
dlib/19.24.2 (test package): CMake command: cmake -G "Unix Makefiles" -DCMAKE_TOOLCHAIN_FILE="/home/conan/w/prod-v1/bsr/cci-2222eac8/recipes/dlib/all/test_package/build/Release/generators/conan_toolchain.cmake" -DCMAKE_POLICY_DEFAULT_CMP0091="NEW" -DCMAKE_BUILD_TYPE="Release" "/home/conan/w/prod-v1/bsr/cci-2222eac8/recipes/dlib/all/test_package/."

----Running------
> cmake -G "Unix Makefiles" -DCMAKE_TOOLCHAIN_FILE="/home/conan/w/prod-v1/bsr/cci-2222eac8/recipes/dlib/all/test_package/build/Release/generators/conan_toolchain.cmake" -DCMAKE_POLICY_DEFAULT_CMP0091="NEW" -DCMAKE_BUILD_TYPE="Release" "/home/conan/w/prod-v1/bsr/cci-2222eac8/recipes/dlib/all/test_package/."
-----------------
-- Using Conan toolchain: /home/conan/w/prod-v1/bsr/cci-2222eac8/recipes/dlib/all/test_package/build/Release/generators/conan_toolchain.cmake
-- The CXX compiler identification is GNU 5.4.0
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- Check for working CXX compiler: /usr/bin/g++ - skipped
-- Detecting CXX compile features
-- Detecting CXX compile features - done
-- Conan: Target declared 'dlib::dlib'
-- Conan: Target declared 'GIF::GIF'
-- Conan: Target declared 'JPEG::JPEG'
-- Conan: Target declared 'PNG::PNG'
-- Conan: Target declared 'ZLIB::ZLIB'
-- Conan: Component target declared 'WebP::webpdecoder'
-- Conan: Component target declared 'WebP::sharpyuv'
-- Conan: Component target declared 'WebP::webp'
-- Conan: Component target declared 'WebP::webpdemux'
-- Conan: Component target declared 'WebP::libwebpmux'
-- Conan: Target declared 'libwebp::libwebp'
-- Conan: Component target declared 'SQLite::SQLite3'
-- Conan: Component target declared 'openblas::openblas_component'
-- Conan: Target declared 'OpenBLAS::OpenBLAS'
-- Configuring done
-- Generating done
-- Build files have been written to: /home/conan/w/prod-v1/bsr/cci-2222eac8/recipes/dlib/all/test_package/build/Release
dlib/19.24.2 (test package): CMake command: cmake --build "/home/conan/w/prod-v1/bsr/cci-2222eac8/recipes/dlib/all/test_package/build/Release" '--' '-j3'

----Running------
> cmake --build "/home/conan/w/prod-v1/bsr/cci-2222eac8/recipes/dlib/all/test_package/build/Release" '--' '-j3'
-----------------
Scanning dependencies of target test_package
[ 50%] Building CXX object CMakeFiles/test_package.dir/test_package.cpp.o
CMakeFiles/test_package.dir/build.make:81: recipe for target 'CMakeFiles/test_package.dir/test_package.cpp.o' failed
CMakeFiles/Makefile2:94: recipe for target 'CMakeFiles/test_package.dir/all' failed
Makefile:102: recipe for target 'all' failed
CMake Warning:
  Manually-specified variables were not used by the project:

    CMAKE_POLICY_DEFAULT_CMP0091


In file included from /home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/threads/threads_kernel_2.h:14:0,
                 from /home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/threads/posix.h:4,
                 from /home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/threads/threads_kernel.h:13,
                 from /home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/threads.h:11,
                 from /home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/logger/logger_kernel_1.h:12,
                 from /home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/logger.h:6,
                 from /home/conan/w/prod-v1/bsr/cci-2222eac8/recipes/dlib/all/test_package/test_package.cpp:1:
/home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/algs.h:17:10: error: #error "Dlib requires C++14 support.  Give your compiler the -std=c++14 option to enable it."
         #error "Dlib requires C++14 support.  Give your compiler the -std=c++14 option to enable it."
          ^
In file included from /home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/algs.h:123:0,
                 from /home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/threads/threads_kernel_2.h:14,
                 from /home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/threads/posix.h:4,
                 from /home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/threads/threads_kernel.h:13,
                 from /home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/threads.h:11,
                 from /home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/logger/logger_kernel_1.h:12,
                 from /home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/logger.h:6,
                 from /home/conan/w/prod-v1/bsr/cci-2222eac8/recipes/dlib/all/test_package/test_package.cpp:1:
/home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/type_traits.h:24:41: error: ‘remove_reference_t’ is not a member of ‘std’
     using is_const_type = std::is_const<std::remove_reference_t<T>>;
                                         ^
/home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/type_traits.h:24:41: error: ‘remove_reference_t’ is not a member of ‘std’
/home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/type_traits.h:24:65: error: template argument 1 is invalid
     using is_const_type = std::is_const<std::remove_reference_t<T>>;
                                                                 ^
/home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/type_traits.h:29:49: error: ‘remove_const_t’ is not a member of ‘std’
     using is_reference_type = std::is_reference<std::remove_const_t<T>>;
                                                 ^
/home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/type_traits.h:29:49: error: ‘remove_const_t’ is not a member of ‘std’
/home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/type_traits.h:29:69: error: template argument 1 is invalid
     using is_reference_type = std::is_reference<std::remove_const_t<T>>;
                                                                     ^
/home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/type_traits.h:112:33: error: ‘remove_cv_t’ in namespace ‘std’ does not name a template type
     using remove_cvref_t = std::remove_cv_t<std::remove_reference_t<T>>;
                                 ^
/home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/type_traits.h:115:38: error: ‘remove_cvref_t’ does not name a type
     struct basic_type { using type = remove_cvref_t<T>; };
                                      ^
/home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/type_traits.h:126:55: error: expected template-name before ‘<’ token
     struct conjunction<B1, Bn...> : std::conditional_t<bool(B1::value), conjunction<Bn...>, B1> {};
                                                       ^
/home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/type_traits.h:126:55: error: expected ‘{’ before ‘<’ token
/home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/type_traits.h:126:55: error: expected unqualified-id before ‘<’ token
/home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/type_traits.h:315:49: error: ‘decay_t’ is not a member of ‘std’
         struct callable_traits<void_t<decltype(&std::decay_t<F>::operator())>, F>
                                                 ^
/home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/type_traits.h:315:64: error: ‘::operator()’ has not been declared
         struct callable_traits<void_t<decltype(&std::decay_t<F>::operator())>, F>
                                                                ^
/home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/type_traits.h:315:77: error: template argument 1 is invalid
         struct callable_traits<void_t<decltype(&std::decay_t<F>::operator())>, F>
                                                                             ^
/home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/type_traits.h:315:81: error: template argument 1 is invalid
         struct callable_traits<void_t<decltype(&std::decay_t<F>::operator())>, F>
                                                                                 ^
/home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/type_traits.h:316:50: error: ‘decay_t’ is not a member of ‘std’
         : public callable_traits<void, decltype(&std::decay_t<F>::operator())>{};
                                                  ^
/home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/type_traits.h:316:65: error: ‘::operator()’ has not been declared
         : public callable_traits<void, decltype(&std::decay_t<F>::operator())>{};
                                                                 ^
/home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/type_traits.h:316:78: error: template argument 2 is invalid
         : public callable_traits<void, decltype(&std::decay_t<F>::operator())>{};
                                                                              ^
In file included from /home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/threads/threads_kernel_2.h:14:0,
                 from /home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/threads/posix.h:4,
                 from /home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/threads/threads_kernel.h:13,
                 from /home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/threads.h:11,
                 from /home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/logger/logger_kernel_1.h:12,
                 from /home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/logger.h:6,
                 from /home/conan/w/prod-v1/bsr/cci-2222eac8/recipes/dlib/all/test_package/test_package.cpp:1:
/home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/algs.h:403:10: error: ‘enable_if_t’ in namespace ‘std’ does not name a template type
     std::enable_if_t<!std::is_convertible<T*, U*>::value && !std::is_convertible<U*,T*>::value, bool>
          ^
/home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/algs.h:418:10: error: ‘enable_if_t’ in namespace ‘std’ does not name a template type
     std::enable_if_t<std::is_convertible<T*, U*>::value || std::is_convertible<U*,T*>::value, bool>
          ^
/home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/algs.h:484:10: error: ‘enable_if_t’ in namespace ‘std’ does not name a template type
     std::enable_if_t<std::is_floating_point<T>::value, bool> is_finite(T value)
          ^
/home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/algs.h:497:10: error: ‘enable_if_t’ in namespace ‘std’ does not name a template type
     std::enable_if_t<std::is_integral<T>::value, bool> is_finite(T value)
          ^
In file included from /home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/threads/threads_kernel_2.h:14:0,
                 from /home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/threads/posix.h:4,
                 from /home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/threads/threads_kernel.h:13,
                 from /home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/threads.h:11,
                 from /home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/logger/logger_kernel_1.h:12,
                 from /home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/logger.h:6,
                 from /home/conan/w/prod-v1/bsr/cci-2222eac8/recipes/dlib/all/test_package/test_package.cpp:1:
/home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/algs.h:898:61: error: ‘std::index_sequence’ has not been declared
         constexpr void for_each_impl(Tuple&& t, F&& f, std::index_sequence<I...>)
                                                             ^
/home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/algs.h:898:75: error: expected ‘,’ or ‘...’ before ‘<’ token
         constexpr void for_each_impl(Tuple&& t, F&& f, std::index_sequence<I...>)
                                                                           ^
/home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/algs.h: In function ‘constexpr void dlib::for_each_in_tuple(Tuple&&, F&&)’:
/home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/algs.h:912:31: error: ‘make_index_sequence’ is not a member of ‘std’
                               std::make_index_sequence<std::tuple_size<std::remove_reference_t<Tuple>>::value>{});
                               ^
/home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/algs.h:912:72: error: ‘remove_reference_t’ is not a member of ‘std’
                               std::make_index_sequence<std::tuple_size<std::remove_reference_t<Tuple>>::value>{});
                                                                        ^
/home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/algs.h:912:72: error: ‘remove_reference_t’ is not a member of ‘std’
/home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/algs.h:912:96: error: template argument 1 is invalid
                               std::make_index_sequence<std::tuple_size<std::remove_reference_t<Tuple>>::value>{});
                                                                                                ^
/home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/algs.h:912:103: error: ‘::value’ has not been declared
                               std::make_index_sequence<std::tuple_size<std::remove_reference_t<Tuple>>::value>{});
                                                                                                       ^
/home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/algs.h:912:111: error: expected primary-expression before ‘{’ token
                               std::make_index_sequence<std::tuple_size<std::remove_reference_t<Tuple>>::value>{});
                                                                                                               ^
In file included from /home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/unicode.h:6:0,
                 from /home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/serialize.h:248,
                 from /home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/binary_search_tree/binary_search_tree_kernel_1.h:11,
                 from /home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/binary_search_tree.h:7,
                 from /home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/threads/threads_kernel_shared.h:10,
                 from /home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/threads/threads_kernel_2.h:173,
                 from /home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/threads/posix.h:4,
                 from /home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/threads/threads_kernel.h:13,
                 from /home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/threads.h:11,
                 from /home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/logger/logger_kernel_1.h:12,
                 from /home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/logger.h:6,
                 from /home/conan/w/prod-v1/bsr/cci-2222eac8/recipes/dlib/all/test_package/test_package.cpp:1:
/home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/unicode/unicode.h: In function ‘void dlib::convert_to_utf32(forward_iterator, forward_iterator, unary_op)’:
/home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/unicode/unicode.h:651:32: error: ‘decay_t’ in namespace ‘std’ does not name a template type
         using char_type = std::decay_t<decltype(*ibegin)>;
                                ^
/home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/unicode/unicode.h:652:36: error: ‘char_type’ was not declared in this scope
         static_assert(std::is_same<char_type, char>::value ||
                                    ^
/home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/unicode/unicode.h:652:51: error: template argument 1 is invalid
         static_assert(std::is_same<char_type, char>::value ||
                                                   ^
/home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/unicode/unicode.h:653:36: error: the value of ‘char_type’ is not usable in a constant expression
                       std::is_same<char_type, wchar_t>::value ||
                                    ^
/home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/unicode/unicode.h:652:36: note: ‘char_type’ was not declared ‘constexpr’
         static_assert(std::is_same<char_type, char>::value ||
                                    ^
/home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/unicode/unicode.h:653:54: error: type/value mismatch at argument 1 in template parameter list for ‘template<class, class> struct std::is_same’
                       std::is_same<char_type, wchar_t>::value ||
                                                      ^
/home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/unicode/unicode.h:653:54: note:   expected a type, got ‘char_type’
/home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/unicode/unicode.h:654:36: error: the value of ‘char_type’ is not usable in a constant expression
                       std::is_same<char_type, unichar>::value,
                                    ^
/home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/unicode/unicode.h:652:36: note: ‘char_type’ was not declared ‘constexpr’
         static_assert(std::is_same<char_type, char>::value ||
                                    ^
/home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/unicode/unicode.h:654:54: error: type/value mismatch at argument 1 in template parameter list for ‘template<class, class> struct std::is_same’
                       std::is_same<char_type, unichar>::value,
                                                      ^
/home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/unicode/unicode.h:654:54: note:   expected a type, got ‘char_type’
/home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/unicode/unicode.h:657:26: error: the value of ‘char_type’ is not usable in a constant expression
         if (std::is_same<char_type, unichar>::value)
                          ^
/home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/unicode/unicode.h:652:36: note: ‘char_type’ was not declared ‘constexpr’
         static_assert(std::is_same<char_type, char>::value ||
                                    ^
/home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/unicode/unicode.h:657:44: error: type/value mismatch at argument 1 in template parameter list for ‘template<class, class> struct std::is_same’
         if (std::is_same<char_type, unichar>::value)
                                            ^
/home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/unicode/unicode.h:657:44: note:   expected a type, got ‘char_type’
/home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/unicode/unicode.h:664:26: error: the value of ‘char_type’ is not usable in a constant expression
         if (std::is_same<char_type, wchar_t>::value)
                          ^
/home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/unicode/unicode.h:652:36: note: ‘char_type’ was not declared ‘constexpr’
         static_assert(std::is_same<char_type, char>::value ||
                                    ^
/home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/unicode/unicode.h:664:44: error: type/value mismatch at argument 1 in template parameter list for ‘template<class, class> struct std::is_same’
         if (std::is_same<char_type, wchar_t>::value)
                                            ^
/home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/unicode/unicode.h:664:44: note:   expected a type, got ‘char_type’
/home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/unicode/unicode.h:694:26: error: the value of ‘char_type’ is not usable in a constant expression
         if (std::is_same<char_type, char>::value)
                          ^
/home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/unicode/unicode.h:652:36: note: ‘char_type’ was not declared ‘constexpr’
         static_assert(std::is_same<char_type, char>::value ||
                                    ^
/home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/unicode/unicode.h:694:41: error: type/value mismatch at argument 1 in template parameter list for ‘template<class, class> struct std::is_same’
         if (std::is_same<char_type, char>::value)
                                         ^
/home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/unicode/unicode.h:694:41: note:   expected a type, got ‘char_type’
In file included from /home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/binary_search_tree/binary_search_tree_kernel_1.h:11:0,
                 from /home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/binary_search_tree.h:7,
                 from /home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/threads/threads_kernel_shared.h:10,
                 from /home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/threads/threads_kernel_2.h:173,
                 from /home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/threads/posix.h:4,
                 from /home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/threads/threads_kernel.h:13,
                 from /home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/threads.h:11,
                 from /home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/logger/logger_kernel_1.h:12,
                 from /home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/logger.h:6,
                 from /home/conan/w/prod-v1/bsr/cci-2222eac8/recipes/dlib/all/test_package/test_package.cpp:1:
/home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/serialize.h: In function ‘void dlib::serialize(const std::tuple<_Elements ...>&, std::ostream&)’:
/home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/serialize.h:1155:41: error: use of ‘auto’ in lambda parameter declaration only available with -std=c++14 or -std=gnu++14
             for_each_in_tuple(item, [&](auto&& x) {
                                         ^
/home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/serialize.h: In function ‘void dlib::deserialize(std::tuple<_Elements ...>&, std::istream&)’:
/home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/serialize.h:1171:41: error: use of ‘auto’ in lambda parameter declaration only available with -std=c++14 or -std=gnu++14
             for_each_in_tuple(item, [&](auto&& x) {
                                         ^
In file included from /home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/member_function_pointer.h:6:0,
                 from /home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/threads/threads_kernel_shared.h:11,
                 from /home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/threads/threads_kernel_2.h:173,
                 from /home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/threads/posix.h:4,
                 from /home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/threads/threads_kernel.h:13,
                 from /home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/threads.h:11,
                 from /home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/logger/logger_kernel_1.h:12,
                 from /home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/logger.h:6,
                 from /home/conan/w/prod-v1/bsr/cci-2222eac8/recipes/dlib/all/test_package/test_package.cpp:1:
/home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/member_function_pointer/member_function_pointer_kernel_1.h: At global scope:
/home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/member_function_pointer/member_function_pointer_kernel_1.h:259:51: error: ‘is_const_type’ was not declared in this scope
         template <typename T> typename disable_if<is_const_type<T>,void>::type 
                                                   ^
/home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/member_function_pointer/member_function_pointer_kernel_1.h:259:66: error: template argument 1 is invalid
         template <typename T> typename disable_if<is_const_type<T>,void>::type 
                                                                  ^
/home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/member_function_pointer/member_function_pointer_kernel_1.h:259:40: error: expected nested-name-specifier
         template <typename T> typename disable_if<is_const_type<T>,void>::type 
                                        ^
/home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/member_function_pointer/member_function_pointer_kernel_1.h:317:51: error: ‘is_const_type’ was not declared in this scope
         template <typename T> typename disable_if<is_const_type<T>,void>::type 
                                                   ^
/home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/member_function_pointer/member_function_pointer_kernel_1.h:317:66: error: template argument 1 is invalid
         template <typename T> typename disable_if<is_const_type<T>,void>::type 
                                                                  ^
/home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/member_function_pointer/member_function_pointer_kernel_1.h:317:40: error: expected nested-name-specifier
         template <typename T> typename disable_if<is_const_type<T>,void>::type 
                                        ^
In file included from /home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/member_function_pointer.h:6:0,
                 from /home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/threads/threads_kernel_shared.h:11,
                 from /home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/threads/threads_kernel_2.h:173,
                 from /home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/threads/posix.h:4,
                 from /home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/threads/threads_kernel.h:13,
                 from /home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/threads.h:11,
                 from /home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/logger/logger_kernel_1.h:12,
                 from /home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/logger.h:6,
                 from /home/conan/w/prod-v1/bsr/cci-2222eac8/recipes/dlib/all/test_package/test_package.cpp:1:
/home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/member_function_pointer/member_function_pointer_kernel_1.h:375:51: error: ‘is_const_type’ was not declared in this scope
         template <typename T> typename disable_if<is_const_type<T>,void>::type 
                                                   ^
/home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/member_function_pointer/member_function_pointer_kernel_1.h:375:66: error: template argument 1 is invalid
         template <typename T> typename disable_if<is_const_type<T>,void>::type 
                                                                  ^
/home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/member_function_pointer/member_function_pointer_kernel_1.h:375:40: error: expected nested-name-specifier
         template <typename T> typename disable_if<is_const_type<T>,void>::type 
                                        ^
/home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/member_function_pointer/member_function_pointer_kernel_1.h:434:51: error: ‘is_const_type’ was not declared in this scope
         template <typename T> typename disable_if<is_const_type<T>,void>::type 
                                                   ^
/home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/member_function_pointer/member_function_pointer_kernel_1.h:434:66: error: template argument 1 is invalid
         template <typename T> typename disable_if<is_const_type<T>,void>::type 
                                                                  ^
/home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/member_function_pointer/member_function_pointer_kernel_1.h:434:40: error: expected nested-name-specifier
         template <typename T> typename disable_if<is_const_type<T>,void>::type 
                                        ^
/home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/member_function_pointer/member_function_pointer_kernel_1.h:495:51: error: ‘is_const_type’ was not declared in this scope
         template <typename T> typename disable_if<is_const_type<T>,void>::type 
                                                   ^
/home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/member_function_pointer/member_function_pointer_kernel_1.h:495:66: error: template argument 1 is invalid
         template <typename T> typename disable_if<is_const_type<T>,void>::type 
                                                                  ^
/home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/member_function_pointer/member_function_pointer_kernel_1.h:495:40: error: expected nested-name-specifier
         template <typename T> typename disable_if<is_const_type<T>,void>::type 
                                        ^
make[2]: *** [CMakeFiles/test_package.dir/test_package.cpp.o] Error 1
make[1]: *** [CMakeFiles/test_package.dir/all] Error 2
make: *** [all] Error 2
dlib/19.24.2 (test package): WARN: Using the new toolchains and generators without specifying a build profile (e.g: -pr:b=default) is discouraged and might cause failures and unexpected behavior
dlib/19.24.2 (test package): WARN: Using the new toolchains and generators without specifying a build profile (e.g: -pr:b=default) is discouraged and might cause failures and unexpected behavior
ERROR: dlib/19.24.2 (test package): Error in build() method, line 21
	cmake.build()
	ConanException: Error 2 while executing cmake --build "/home/conan/w/prod-v1/bsr/cci-2222eac8/recipes/dlib/all/test_package/build/Release" '--' '-j3'
********************************************************************************
conan test cci-2222eac8/recipes/dlib/all/test_v1_package/conanfile.py dlib/19.24.2@#d41549548fcc353e50ec9d97f2a0ad65 -pr /home/conan/w/prod-v1/bsr/26632/bddfa/profile_linux_5_libstdcpp11_gcc_release_64.dlib-shared-False.txt -c tools.system.package_manager:mode=install -c tools.system.package_manager:sudo=True
********************************************************************************
Configuration:
[settings]
arch=x86_64
build_type=Release
compiler=gcc
compiler.libcxx=libstdc++11
compiler.version=5
os=Linux
[options]
dlib:shared=False
[build_requires]
[env]
[conf]
tools.system.package_manager:mode=install
tools.system.package_manager:sudo=True

Version ranges solved
    Version range '>=1.2.11 <2' required by 'libpng/1.6.40' resolved to 'zlib/1.3' in local cache

dlib/19.24.2 (test package): Installing package
Requirements
    dlib/19.24.2 from local cache - Cache
    giflib/5.2.1 from 'conan-center' - Cache
    libjpeg/9e from 'conan-center' - Cache
    libpng/1.6.40 from 'conan-center' - Cache
    libwebp/1.3.2 from 'conan-center' - Cache
    openblas/0.3.20 from 'conan-center' - Cache
    sqlite3/3.43.1 from 'conan-center' - Cache
    zlib/1.3 from 'conan-center' - Cache
Packages
    dlib/19.24.2:4c80a5d472fec493d3ce431bc2871c7ebec1987f - Cache
    giflib/5.2.1:c8ae336fc6ee014197c22025f211efb2f189136e - Cache
    libjpeg/9e:76f87539fc90ff313e0b3182641a9bb558a717d2 - Cache
    libpng/1.6.40:b4e19c2a9f411079edce0e39c7f8fa0db025a2ad - Cache
    libwebp/1.3.2:9914f4fbedcef15a1908dc721c310d135acd4987 - Cache
    openblas/0.3.20:33f483781dd6ae6d66a80240eeb210a0986be6ef - Cache
    sqlite3/3.43.1:bc01b0a8d9a484b3b4226ef647e2ba7dd5b627ed - Cache
    zlib/1.3:76f87539fc90ff313e0b3182641a9bb558a717d2 - Cache

Installing (downloading, building) binaries...
giflib/5.2.1: Already installed!
libjpeg/9e: Already installed!
libwebp/1.3.2: Already installed!
openblas/0.3.20: Already installed!
openblas/0.3.20: Setting OpenBLAS_HOME environment variable: /home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/openblas/0.3.20/_/_/package/33f483781dd6ae6d66a80240eeb210a0986be6ef
sqlite3/3.43.1: Already installed!
zlib/1.3: Already installed!
libpng/1.6.40: Already installed!
dlib/19.24.2: Already installed!
dlib/19.24.2 (test package): Generator cmake_find_package_multi created dlib-config-version.cmake
dlib/19.24.2 (test package): Generator cmake_find_package_multi created dlib-config.cmake
dlib/19.24.2 (test package): Generator cmake_find_package_multi created dlibTargets.cmake
dlib/19.24.2 (test package): Generator cmake_find_package_multi created dlibTarget-release.cmake
dlib/19.24.2 (test package): Generator cmake_find_package_multi created GIFConfigVersion.cmake
dlib/19.24.2 (test package): Generator cmake_find_package_multi created GIFConfig.cmake
dlib/19.24.2 (test package): Generator cmake_find_package_multi created GIFTargets.cmake
dlib/19.24.2 (test package): Generator cmake_find_package_multi created GIFTarget-release.cmake
dlib/19.24.2 (test package): Generator cmake_find_package_multi created JPEGConfigVersion.cmake
dlib/19.24.2 (test package): Generator cmake_find_package_multi created JPEGConfig.cmake
dlib/19.24.2 (test package): Generator cmake_find_package_multi created JPEGTargets.cmake
dlib/19.24.2 (test package): Generator cmake_find_package_multi created JPEGTarget-release.cmake
dlib/19.24.2 (test package): Generator cmake_find_package_multi created PNGConfigVersion.cmake
dlib/19.24.2 (test package): Generator cmake_find_package_multi created PNGConfig.cmake
dlib/19.24.2 (test package): Generator cmake_find_package_multi created PNGTargets.cmake
dlib/19.24.2 (test package): Generator cmake_find_package_multi created PNGTarget-release.cmake
dlib/19.24.2 (test package): Generator cmake_find_package_multi created WebPConfigVersion.cmake
dlib/19.24.2 (test package): Generator cmake_find_package_multi created WebPTarget-release.cmake
dlib/19.24.2 (test package): Generator cmake_find_package_multi created WebPTargets.cmake
dlib/19.24.2 (test package): Generator cmake_find_package_multi created WebPConfig.cmake
dlib/19.24.2 (test package): Generator cmake_find_package_multi created SQLite3ConfigVersion.cmake
dlib/19.24.2 (test package): Generator cmake_find_package_multi created SQLite3Target-release.cmake
dlib/19.24.2 (test package): Generator cmake_find_package_multi created SQLite3Targets.cmake
dlib/19.24.2 (test package): Generator cmake_find_package_multi created SQLite3Config.cmake
dlib/19.24.2 (test package): Generator cmake_find_package_multi created OpenBLASConfigVersion.cmake
dlib/19.24.2 (test package): Generator cmake_find_package_multi created OpenBLASTarget-release.cmake
dlib/19.24.2 (test package): Generator cmake_find_package_multi created OpenBLASTargets.cmake
dlib/19.24.2 (test package): Generator cmake_find_package_multi created OpenBLASConfig.cmake
dlib/19.24.2 (test package): Generator cmake_find_package_multi created ZLIBConfigVersion.cmake
dlib/19.24.2 (test package): Generator cmake_find_package_multi created ZLIBConfig.cmake
dlib/19.24.2 (test package): Generator cmake_find_package_multi created ZLIBTargets.cmake
dlib/19.24.2 (test package): Generator cmake_find_package_multi created ZLIBTarget-release.cmake
dlib/19.24.2 (test package): Generator txt created conanbuildinfo.txt
dlib/19.24.2 (test package): Generator cmake created conanbuildinfo.cmake
dlib/19.24.2 (test package): Aggregating env generators
dlib/19.24.2 (test package): Generated conaninfo.txt
dlib/19.24.2 (test package): Generated graphinfo
Using lockfile: '/home/conan/w/prod-v1/bsr/cci-2222eac8/recipes/dlib/all/test_v1_package/build/84359237c19c1f988fc1ba617bf850680528c8f3/conan.lock'
Using cached profile from lockfile
[HOOK - conan-center.py] pre_build(): [FPIC MANAGEMENT (KB-H007)] 'fPIC' option not found
[HOOK - conan-center.py] pre_build(): [FPIC MANAGEMENT (KB-H007)] OK
dlib/19.24.2 (test package): Calling build()

----Running------
> cd '/home/conan/w/prod-v1/bsr/cci-2222eac8/recipes/dlib/all/test_v1_package/build/84359237c19c1f988fc1ba617bf850680528c8f3' && cmake -G "Unix Makefiles" -DCMAKE_BUILD_TYPE="Release" -DCONAN_IN_LOCAL_CACHE="OFF" -DCONAN_COMPILER="gcc" -DCONAN_COMPILER_VERSION="5" -DCONAN_CXX_FLAGS="-m64" -DCONAN_SHARED_LINKER_FLAGS="-m64" -DCONAN_C_FLAGS="-m64" -DCONAN_LIBCXX="libstdc++11" -DCMAKE_INSTALL_PREFIX="/home/conan/w/prod-v1/bsr/cci-2222eac8/recipes/dlib/all/test_v1_package/build/84359237c19c1f988fc1ba617bf850680528c8f3/package" -DCMAKE_INSTALL_BINDIR="bin" -DCMAKE_INSTALL_SBINDIR="bin" -DCMAKE_INSTALL_LIBEXECDIR="bin" -DCMAKE_INSTALL_LIBDIR="lib" -DCMAKE_INSTALL_INCLUDEDIR="include" -DCMAKE_INSTALL_OLDINCLUDEDIR="include" -DCMAKE_INSTALL_DATAROOTDIR="share" -DCMAKE_PREFIX_PATH="/home/conan/w/prod-v1/bsr/cci-2222eac8/recipes/dlib/all/test_v1_package/build/84359237c19c1f988fc1ba617bf850680528c8f3" -DCMAKE_MODULE_PATH="/home/conan/w/prod-v1/bsr/cci-2222eac8/recipes/dlib/all/test_v1_package/build/84359237c19c1f988fc1ba617bf850680528c8f3" -DCMAKE_EXPORT_NO_PACKAGE_REGISTRY="ON" -DCONAN_EXPORTED="1" -Wno-dev '/home/conan/w/prod-v1/bsr/cci-2222eac8/recipes/dlib/all/test_v1_package'
-----------------
-- The C compiler identification is GNU 5.4.0
-- The CXX compiler identification is GNU 5.4.0
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Check for working C compiler: /usr/bin/gcc - skipped
-- Detecting C compile features
-- Detecting C compile features - done
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- Check for working CXX compiler: /usr/bin/g++ - skipped
-- Detecting CXX compile features
-- Detecting CXX compile features - done
-- Conan: called by CMake conan helper
-- Conan: Adjusting output directories
-- Conan: Using cmake targets configuration
-- Library dlib found /home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/lib/libdlib.a
-- Library gif found /home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/giflib/5.2.1/_/_/package/c8ae336fc6ee014197c22025f211efb2f189136e/lib/libgif.a
-- Library jpeg found /home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/libjpeg/9e/_/_/package/76f87539fc90ff313e0b3182641a9bb558a717d2/lib/libjpeg.a
-- Library png found /home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/libpng/1.6.40/_/_/package/b4e19c2a9f411079edce0e39c7f8fa0db025a2ad/lib/libpng.a
-- Library webpdecoder found /home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/libwebp/1.3.2/_/_/package/9914f4fbedcef15a1908dc721c310d135acd4987/lib/libwebpdecoder.a
-- Library webpdemux found /home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/libwebp/1.3.2/_/_/package/9914f4fbedcef15a1908dc721c310d135acd4987/lib/libwebpdemux.a
-- Library webpmux found /home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/libwebp/1.3.2/_/_/package/9914f4fbedcef15a1908dc721c310d135acd4987/lib/libwebpmux.a
-- Library webp found /home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/libwebp/1.3.2/_/_/package/9914f4fbedcef15a1908dc721c310d135acd4987/lib/libwebp.a
-- Library sharpyuv found /home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/libwebp/1.3.2/_/_/package/9914f4fbedcef15a1908dc721c310d135acd4987/lib/libsharpyuv.a
-- Library sqlite3 found /home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/sqlite3/3.43.1/_/_/package/bc01b0a8d9a484b3b4226ef647e2ba7dd5b627ed/lib/libsqlite3.a
-- Library openblas found /home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/openblas/0.3.20/_/_/package/33f483781dd6ae6d66a80240eeb210a0986be6ef/lib/libopenblas.a
-- Library z found /home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/zlib/1.3/_/_/package/76f87539fc90ff313e0b3182641a9bb558a717d2/lib/libz.a
-- Conan: Adjusting default RPATHs Conan policies
-- Conan: Adjusting language standard
-- Conan: Compiler GCC>=5, checking major version 5
-- Conan: Checking correct version: 5
-- Conan: C++ stdlib: libstdc++11
-- Library dlib found /home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/lib/libdlib.a
-- Found: /home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/lib/libdlib.a
-- Library gif found /home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/giflib/5.2.1/_/_/package/c8ae336fc6ee014197c22025f211efb2f189136e/lib/libgif.a
-- Found: /home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/giflib/5.2.1/_/_/package/c8ae336fc6ee014197c22025f211efb2f189136e/lib/libgif.a
-- Library jpeg found /home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/libjpeg/9e/_/_/package/76f87539fc90ff313e0b3182641a9bb558a717d2/lib/libjpeg.a
-- Found: /home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/libjpeg/9e/_/_/package/76f87539fc90ff313e0b3182641a9bb558a717d2/lib/libjpeg.a
-- Library png found /home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/libpng/1.6.40/_/_/package/b4e19c2a9f411079edce0e39c7f8fa0db025a2ad/lib/libpng.a
-- Found: /home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/libpng/1.6.40/_/_/package/b4e19c2a9f411079edce0e39c7f8fa0db025a2ad/lib/libpng.a
-- Library z found /home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/zlib/1.3/_/_/package/76f87539fc90ff313e0b3182641a9bb558a717d2/lib/libz.a
-- Found: /home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/zlib/1.3/_/_/package/76f87539fc90ff313e0b3182641a9bb558a717d2/lib/libz.a
-- Library webpdecoder found /home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/libwebp/1.3.2/_/_/package/9914f4fbedcef15a1908dc721c310d135acd4987/lib/libwebpdecoder.a
-- Found: /home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/libwebp/1.3.2/_/_/package/9914f4fbedcef15a1908dc721c310d135acd4987/lib/libwebpdecoder.a
-- Library webpdemux found /home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/libwebp/1.3.2/_/_/package/9914f4fbedcef15a1908dc721c310d135acd4987/lib/libwebpdemux.a
-- Found: /home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/libwebp/1.3.2/_/_/package/9914f4fbedcef15a1908dc721c310d135acd4987/lib/libwebpdemux.a
-- Library webpmux found /home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/libwebp/1.3.2/_/_/package/9914f4fbedcef15a1908dc721c310d135acd4987/lib/libwebpmux.a
-- Found: /home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/libwebp/1.3.2/_/_/package/9914f4fbedcef15a1908dc721c310d135acd4987/lib/libwebpmux.a
-- Library webp found /home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/libwebp/1.3.2/_/_/package/9914f4fbedcef15a1908dc721c310d135acd4987/lib/libwebp.a
-- Found: /home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/libwebp/1.3.2/_/_/package/9914f4fbedcef15a1908dc721c310d135acd4987/lib/libwebp.a
-- Library sharpyuv found /home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/libwebp/1.3.2/_/_/package/9914f4fbedcef15a1908dc721c310d135acd4987/lib/libsharpyuv.a
-- Found: /home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/libwebp/1.3.2/_/_/package/9914f4fbedcef15a1908dc721c310d135acd4987/lib/libsharpyuv.a
-- Library sharpyuv found /home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/libwebp/1.3.2/_/_/package/9914f4fbedcef15a1908dc721c310d135acd4987/lib/libsharpyuv.a
-- Found: /home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/libwebp/1.3.2/_/_/package/9914f4fbedcef15a1908dc721c310d135acd4987/lib/libsharpyuv.a
-- Library webp found /home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/libwebp/1.3.2/_/_/package/9914f4fbedcef15a1908dc721c310d135acd4987/lib/libwebp.a
-- Found: /home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/libwebp/1.3.2/_/_/package/9914f4fbedcef15a1908dc721c310d135acd4987/lib/libwebp.a
-- Library webpmux found /home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/libwebp/1.3.2/_/_/package/9914f4fbedcef15a1908dc721c310d135acd4987/lib/libwebpmux.a
-- Found: /home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/libwebp/1.3.2/_/_/package/9914f4fbedcef15a1908dc721c310d135acd4987/lib/libwebpmux.a
-- Library webpdemux found /home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/libwebp/1.3.2/_/_/package/9914f4fbedcef15a1908dc721c310d135acd4987/lib/libwebpdemux.a
-- Found: /home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/libwebp/1.3.2/_/_/package/9914f4fbedcef15a1908dc721c310d135acd4987/lib/libwebpdemux.a
-- Library webpdecoder found /home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/libwebp/1.3.2/_/_/package/9914f4fbedcef15a1908dc721c310d135acd4987/lib/libwebpdecoder.a
-- Found: /home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/libwebp/1.3.2/_/_/package/9914f4fbedcef15a1908dc721c310d135acd4987/lib/libwebpdecoder.a
-- Library sqlite3 found /home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/sqlite3/3.43.1/_/_/package/bc01b0a8d9a484b3b4226ef647e2ba7dd5b627ed/lib/libsqlite3.a
-- Found: /home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/sqlite3/3.43.1/_/_/package/bc01b0a8d9a484b3b4226ef647e2ba7dd5b627ed/lib/libsqlite3.a
-- Library sqlite3 found /home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/sqlite3/3.43.1/_/_/package/bc01b0a8d9a484b3b4226ef647e2ba7dd5b627ed/lib/libsqlite3.a
-- Found: /home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/sqlite3/3.43.1/_/_/package/bc01b0a8d9a484b3b4226ef647e2ba7dd5b627ed/lib/libsqlite3.a
-- Library openblas found /home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/openblas/0.3.20/_/_/package/33f483781dd6ae6d66a80240eeb210a0986be6ef/lib/libopenblas.a
-- Found: /home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/openblas/0.3.20/_/_/package/33f483781dd6ae6d66a80240eeb210a0986be6ef/lib/libopenblas.a
-- Library openblas found /home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/openblas/0.3.20/_/_/package/33f483781dd6ae6d66a80240eeb210a0986be6ef/lib/libopenblas.a
-- Found: /home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/openblas/0.3.20/_/_/package/33f483781dd6ae6d66a80240eeb210a0986be6ef/lib/libopenblas.a
-- Configuring done
-- Generating done
-- Build files have been written to: /home/conan/w/prod-v1/bsr/cci-2222eac8/recipes/dlib/all/test_v1_package/build/84359237c19c1f988fc1ba617bf850680528c8f3

----Running------
> cmake --build '/home/conan/w/prod-v1/bsr/cci-2222eac8/recipes/dlib/all/test_v1_package/build/84359237c19c1f988fc1ba617bf850680528c8f3' '--' '-j3'
-----------------
Scanning dependencies of target test_package
[ 50%] Building CXX object test_package/CMakeFiles/test_package.dir/test_package.cpp.o
test_package/CMakeFiles/test_package.dir/build.make:81: recipe for target 'test_package/CMakeFiles/test_package.dir/test_package.cpp.o' failed
CMakeFiles/Makefile2:112: recipe for target 'test_package/CMakeFiles/test_package.dir/all' failed
Makefile:102: recipe for target 'all' failed
CMake Warning:
  Manually-specified variables were not used by the project:

    CMAKE_EXPORT_NO_PACKAGE_REGISTRY
    CMAKE_INSTALL_BINDIR
    CMAKE_INSTALL_DATAROOTDIR
    CMAKE_INSTALL_INCLUDEDIR
    CMAKE_INSTALL_LIBDIR
    CMAKE_INSTALL_LIBEXECDIR
    CMAKE_INSTALL_OLDINCLUDEDIR
    CMAKE_INSTALL_SBINDIR


In file included from /home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/threads/threads_kernel_2.h:14:0,
                 from /home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/threads/posix.h:4,
                 from /home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/threads/threads_kernel.h:13,
                 from /home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/threads.h:11,
                 from /home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/logger/logger_kernel_1.h:12,
                 from /home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/logger.h:6,
                 from /home/conan/w/prod-v1/bsr/cci-2222eac8/recipes/dlib/all/test_package/test_package.cpp:1:
/home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/algs.h:17:10: error: #error "Dlib requires C++14 support.  Give your compiler the -std=c++14 option to enable it."
         #error "Dlib requires C++14 support.  Give your compiler the -std=c++14 option to enable it."
          ^
In file included from /home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/algs.h:123:0,
                 from /home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/threads/threads_kernel_2.h:14,
                 from /home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/threads/posix.h:4,
                 from /home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/threads/threads_kernel.h:13,
                 from /home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/threads.h:11,
                 from /home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/logger/logger_kernel_1.h:12,
                 from /home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/logger.h:6,
                 from /home/conan/w/prod-v1/bsr/cci-2222eac8/recipes/dlib/all/test_package/test_package.cpp:1:
/home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/type_traits.h:24:41: error: ‘remove_reference_t’ is not a member of ‘std’
     using is_const_type = std::is_const<std::remove_reference_t<T>>;
                                         ^
/home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/type_traits.h:24:41: error: ‘remove_reference_t’ is not a member of ‘std’
/home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/type_traits.h:24:65: error: template argument 1 is invalid
     using is_const_type = std::is_const<std::remove_reference_t<T>>;
                                                                 ^
/home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/type_traits.h:29:49: error: ‘remove_const_t’ is not a member of ‘std’
     using is_reference_type = std::is_reference<std::remove_const_t<T>>;
                                                 ^
/home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/type_traits.h:29:49: error: ‘remove_const_t’ is not a member of ‘std’
/home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/type_traits.h:29:69: error: template argument 1 is invalid
     using is_reference_type = std::is_reference<std::remove_const_t<T>>;
                                                                     ^
/home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/type_traits.h:112:33: error: ‘remove_cv_t’ in namespace ‘std’ does not name a template type
     using remove_cvref_t = std::remove_cv_t<std::remove_reference_t<T>>;
                                 ^
/home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/type_traits.h:115:38: error: ‘remove_cvref_t’ does not name a type
     struct basic_type { using type = remove_cvref_t<T>; };
                                      ^
/home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/type_traits.h:126:55: error: expected template-name before ‘<’ token
     struct conjunction<B1, Bn...> : std::conditional_t<bool(B1::value), conjunction<Bn...>, B1> {};
                                                       ^
/home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/type_traits.h:126:55: error: expected ‘{’ before ‘<’ token
/home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/type_traits.h:126:55: error: expected unqualified-id before ‘<’ token
/home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/type_traits.h:315:49: error: ‘decay_t’ is not a member of ‘std’
         struct callable_traits<void_t<decltype(&std::decay_t<F>::operator())>, F>
                                                 ^
/home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/type_traits.h:315:64: error: ‘::operator()’ has not been declared
         struct callable_traits<void_t<decltype(&std::decay_t<F>::operator())>, F>
                                                                ^
/home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/type_traits.h:315:77: error: template argument 1 is invalid
         struct callable_traits<void_t<decltype(&std::decay_t<F>::operator())>, F>
                                                                             ^
/home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/type_traits.h:315:81: error: template argument 1 is invalid
         struct callable_traits<void_t<decltype(&std::decay_t<F>::operator())>, F>
                                                                                 ^
/home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/type_traits.h:316:50: error: ‘decay_t’ is not a member of ‘std’
         : public callable_traits<void, decltype(&std::decay_t<F>::operator())>{};
                                                  ^
/home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/type_traits.h:316:65: error: ‘::operator()’ has not been declared
         : public callable_traits<void, decltype(&std::decay_t<F>::operator())>{};
                                                                 ^
/home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/type_traits.h:316:78: error: template argument 2 is invalid
         : public callable_traits<void, decltype(&std::decay_t<F>::operator())>{};
                                                                              ^
In file included from /home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/threads/threads_kernel_2.h:14:0,
                 from /home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/threads/posix.h:4,
                 from /home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/threads/threads_kernel.h:13,
                 from /home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/threads.h:11,
                 from /home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/logger/logger_kernel_1.h:12,
                 from /home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/logger.h:6,
                 from /home/conan/w/prod-v1/bsr/cci-2222eac8/recipes/dlib/all/test_package/test_package.cpp:1:
/home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/algs.h:403:10: error: ‘enable_if_t’ in namespace ‘std’ does not name a template type
     std::enable_if_t<!std::is_convertible<T*, U*>::value && !std::is_convertible<U*,T*>::value, bool>
          ^
/home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/algs.h:418:10: error: ‘enable_if_t’ in namespace ‘std’ does not name a template type
     std::enable_if_t<std::is_convertible<T*, U*>::value || std::is_convertible<U*,T*>::value, bool>
          ^
/home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/algs.h:484:10: error: ‘enable_if_t’ in namespace ‘std’ does not name a template type
     std::enable_if_t<std::is_floating_point<T>::value, bool> is_finite(T value)
          ^
/home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/algs.h:497:10: error: ‘enable_if_t’ in namespace ‘std’ does not name a template type
     std::enable_if_t<std::is_integral<T>::value, bool> is_finite(T value)
          ^
In file included from /home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/threads/threads_kernel_2.h:14:0,
                 from /home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/threads/posix.h:4,
                 from /home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/threads/threads_kernel.h:13,
                 from /home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/threads.h:11,
                 from /home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/logger/logger_kernel_1.h:12,
                 from /home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/logger.h:6,
                 from /home/conan/w/prod-v1/bsr/cci-2222eac8/recipes/dlib/all/test_package/test_package.cpp:1:
/home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/algs.h:898:61: error: ‘std::index_sequence’ has not been declared
         constexpr void for_each_impl(Tuple&& t, F&& f, std::index_sequence<I...>)
                                                             ^
/home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/algs.h:898:75: error: expected ‘,’ or ‘...’ before ‘<’ token
         constexpr void for_each_impl(Tuple&& t, F&& f, std::index_sequence<I...>)
                                                                           ^
/home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/algs.h: In function ‘constexpr void dlib::for_each_in_tuple(Tuple&&, F&&)’:
/home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/algs.h:912:31: error: ‘make_index_sequence’ is not a member of ‘std’
                               std::make_index_sequence<std::tuple_size<std::remove_reference_t<Tuple>>::value>{});
                               ^
/home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/algs.h:912:72: error: ‘remove_reference_t’ is not a member of ‘std’
                               std::make_index_sequence<std::tuple_size<std::remove_reference_t<Tuple>>::value>{});
                                                                        ^
/home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/algs.h:912:72: error: ‘remove_reference_t’ is not a member of ‘std’
/home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/algs.h:912:96: error: template argument 1 is invalid
                               std::make_index_sequence<std::tuple_size<std::remove_reference_t<Tuple>>::value>{});
                                                                                                ^
/home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/algs.h:912:103: error: ‘::value’ has not been declared
                               std::make_index_sequence<std::tuple_size<std::remove_reference_t<Tuple>>::value>{});
                                                                                                       ^
/home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/algs.h:912:111: error: expected primary-expression before ‘{’ token
                               std::make_index_sequence<std::tuple_size<std::remove_reference_t<Tuple>>::value>{});
                                                                                                               ^
In file included from /home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/unicode.h:6:0,
                 from /home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/serialize.h:248,
                 from /home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/binary_search_tree/binary_search_tree_kernel_1.h:11,
                 from /home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/binary_search_tree.h:7,
                 from /home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/threads/threads_kernel_shared.h:10,
                 from /home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/threads/threads_kernel_2.h:173,
                 from /home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/threads/posix.h:4,
                 from /home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/threads/threads_kernel.h:13,
                 from /home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/threads.h:11,
                 from /home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/logger/logger_kernel_1.h:12,
                 from /home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/logger.h:6,
                 from /home/conan/w/prod-v1/bsr/cci-2222eac8/recipes/dlib/all/test_package/test_package.cpp:1:
/home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/unicode/unicode.h: In function ‘void dlib::convert_to_utf32(forward_iterator, forward_iterator, unary_op)’:
/home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/unicode/unicode.h:651:32: error: ‘decay_t’ in namespace ‘std’ does not name a template type
         using char_type = std::decay_t<decltype(*ibegin)>;
                                ^
/home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/unicode/unicode.h:652:36: error: ‘char_type’ was not declared in this scope
         static_assert(std::is_same<char_type, char>::value ||
                                    ^
/home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/unicode/unicode.h:652:51: error: template argument 1 is invalid
         static_assert(std::is_same<char_type, char>::value ||
                                                   ^
/home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/unicode/unicode.h:653:36: error: the value of ‘char_type’ is not usable in a constant expression
                       std::is_same<char_type, wchar_t>::value ||
                                    ^
/home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/unicode/unicode.h:652:36: note: ‘char_type’ was not declared ‘constexpr’
         static_assert(std::is_same<char_type, char>::value ||
                                    ^
/home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/unicode/unicode.h:653:54: error: type/value mismatch at argument 1 in template parameter list for ‘template<class, class> struct std::is_same’
                       std::is_same<char_type, wchar_t>::value ||
                                                      ^
/home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/unicode/unicode.h:653:54: note:   expected a type, got ‘char_type’
/home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/unicode/unicode.h:654:36: error: the value of ‘char_type’ is not usable in a constant expression
                       std::is_same<char_type, unichar>::value,
                                    ^
/home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/unicode/unicode.h:652:36: note: ‘char_type’ was not declared ‘constexpr’
         static_assert(std::is_same<char_type, char>::value ||
                                    ^
/home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/unicode/unicode.h:654:54: error: type/value mismatch at argument 1 in template parameter list for ‘template<class, class> struct std::is_same’
                       std::is_same<char_type, unichar>::value,
                                                      ^
/home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/unicode/unicode.h:654:54: note:   expected a type, got ‘char_type’
/home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/unicode/unicode.h:657:26: error: the value of ‘char_type’ is not usable in a constant expression
         if (std::is_same<char_type, unichar>::value)
                          ^
/home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/unicode/unicode.h:652:36: note: ‘char_type’ was not declared ‘constexpr’
         static_assert(std::is_same<char_type, char>::value ||
                                    ^
/home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/unicode/unicode.h:657:44: error: type/value mismatch at argument 1 in template parameter list for ‘template<class, class> struct std::is_same’
         if (std::is_same<char_type, unichar>::value)
                                            ^
/home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/unicode/unicode.h:657:44: note:   expected a type, got ‘char_type’
/home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/unicode/unicode.h:664:26: error: the value of ‘char_type’ is not usable in a constant expression
         if (std::is_same<char_type, wchar_t>::value)
                          ^
/home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/unicode/unicode.h:652:36: note: ‘char_type’ was not declared ‘constexpr’
         static_assert(std::is_same<char_type, char>::value ||
                                    ^
/home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/unicode/unicode.h:664:44: error: type/value mismatch at argument 1 in template parameter list for ‘template<class, class> struct std::is_same’
         if (std::is_same<char_type, wchar_t>::value)
                                            ^
/home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/unicode/unicode.h:664:44: note:   expected a type, got ‘char_type’
/home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/unicode/unicode.h:694:26: error: the value of ‘char_type’ is not usable in a constant expression
         if (std::is_same<char_type, char>::value)
                          ^
/home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/unicode/unicode.h:652:36: note: ‘char_type’ was not declared ‘constexpr’
         static_assert(std::is_same<char_type, char>::value ||
                                    ^
/home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/unicode/unicode.h:694:41: error: type/value mismatch at argument 1 in template parameter list for ‘template<class, class> struct std::is_same’
         if (std::is_same<char_type, char>::value)
                                         ^
/home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/unicode/unicode.h:694:41: note:   expected a type, got ‘char_type’
In file included from /home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/binary_search_tree/binary_search_tree_kernel_1.h:11:0,
                 from /home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/binary_search_tree.h:7,
                 from /home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/threads/threads_kernel_shared.h:10,
                 from /home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/threads/threads_kernel_2.h:173,
                 from /home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/threads/posix.h:4,
                 from /home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/threads/threads_kernel.h:13,
                 from /home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/threads.h:11,
                 from /home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/logger/logger_kernel_1.h:12,
                 from /home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/logger.h:6,
                 from /home/conan/w/prod-v1/bsr/cci-2222eac8/recipes/dlib/all/test_package/test_package.cpp:1:
/home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/serialize.h: In function ‘void dlib::serialize(const std::tuple<_Elements ...>&, std::ostream&)’:
/home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/serialize.h:1155:41: error: use of ‘auto’ in lambda parameter declaration only available with -std=c++14 or -std=gnu++14
             for_each_in_tuple(item, [&](auto&& x) {
                                         ^
/home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/serialize.h: In function ‘void dlib::deserialize(std::tuple<_Elements ...>&, std::istream&)’:
/home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/serialize.h:1171:41: error: use of ‘auto’ in lambda parameter declaration only available with -std=c++14 or -std=gnu++14
             for_each_in_tuple(item, [&](auto&& x) {
                                         ^
In file included from /home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/member_function_pointer.h:6:0,
                 from /home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/threads/threads_kernel_shared.h:11,
                 from /home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/threads/threads_kernel_2.h:173,
                 from /home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/threads/posix.h:4,
                 from /home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/threads/threads_kernel.h:13,
                 from /home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/threads.h:11,
                 from /home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/logger/logger_kernel_1.h:12,
                 from /home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/logger.h:6,
                 from /home/conan/w/prod-v1/bsr/cci-2222eac8/recipes/dlib/all/test_package/test_package.cpp:1:
/home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/member_function_pointer/member_function_pointer_kernel_1.h: At global scope:
/home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/member_function_pointer/member_function_pointer_kernel_1.h:259:51: error: ‘is_const_type’ was not declared in this scope
         template <typename T> typename disable_if<is_const_type<T>,void>::type 
                                                   ^
/home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/member_function_pointer/member_function_pointer_kernel_1.h:259:66: error: template argument 1 is invalid
         template <typename T> typename disable_if<is_const_type<T>,void>::type 
                                                                  ^
/home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/member_function_pointer/member_function_pointer_kernel_1.h:259:40: error: expected nested-name-specifier
         template <typename T> typename disable_if<is_const_type<T>,void>::type 
                                        ^
/home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/member_function_pointer/member_function_pointer_kernel_1.h:317:51: error: ‘is_const_type’ was not declared in this scope
         template <typename T> typename disable_if<is_const_type<T>,void>::type 
                                                   ^
/home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/member_function_pointer/member_function_pointer_kernel_1.h:317:66: error: template argument 1 is invalid
         template <typename T> typename disable_if<is_const_type<T>,void>::type 
                                                                  ^
/home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/member_function_pointer/member_function_pointer_kernel_1.h:317:40: error: expected nested-name-specifier
         template <typename T> typename disable_if<is_const_type<T>,void>::type 
                                        ^
In file included from /home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/member_function_pointer.h:6:0,
                 from /home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/threads/threads_kernel_shared.h:11,
                 from /home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/threads/threads_kernel_2.h:173,
                 from /home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/threads/posix.h:4,
                 from /home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/threads/threads_kernel.h:13,
                 from /home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/threads.h:11,
                 from /home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/logger/logger_kernel_1.h:12,
                 from /home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/logger.h:6,
                 from /home/conan/w/prod-v1/bsr/cci-2222eac8/recipes/dlib/all/test_package/test_package.cpp:1:
/home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/member_function_pointer/member_function_pointer_kernel_1.h:375:51: error: ‘is_const_type’ was not declared in this scope
         template <typename T> typename disable_if<is_const_type<T>,void>::type 
                                                   ^
/home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/member_function_pointer/member_function_pointer_kernel_1.h:375:66: error: template argument 1 is invalid
         template <typename T> typename disable_if<is_const_type<T>,void>::type 
                                                                  ^
/home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/member_function_pointer/member_function_pointer_kernel_1.h:375:40: error: expected nested-name-specifier
         template <typename T> typename disable_if<is_const_type<T>,void>::type 
                                        ^
/home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/member_function_pointer/member_function_pointer_kernel_1.h:434:51: error: ‘is_const_type’ was not declared in this scope
         template <typename T> typename disable_if<is_const_type<T>,void>::type 
                                                   ^
/home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/member_function_pointer/member_function_pointer_kernel_1.h:434:66: error: template argument 1 is invalid
         template <typename T> typename disable_if<is_const_type<T>,void>::type 
                                                                  ^
/home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/member_function_pointer/member_function_pointer_kernel_1.h:434:40: error: expected nested-name-specifier
         template <typename T> typename disable_if<is_const_type<T>,void>::type 
                                        ^
/home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/member_function_pointer/member_function_pointer_kernel_1.h:495:51: error: ‘is_const_type’ was not declared in this scope
         template <typename T> typename disable_if<is_const_type<T>,void>::type 
                                                   ^
/home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/member_function_pointer/member_function_pointer_kernel_1.h:495:66: error: template argument 1 is invalid
         template <typename T> typename disable_if<is_const_type<T>,void>::type 
                                                                  ^
/home/conan/w/prod-v1/bsr/26632/aacac/.conan/data/dlib/19.24.2/_/_/package/4c80a5d472fec493d3ce431bc2871c7ebec1987f/include/dlib/member_function_pointer/member_function_pointer_kernel_1.h:495:40: error: expected nested-name-specifier
         template <typename T> typename disable_if<is_const_type<T>,void>::type 
                                        ^
make[2]: *** [test_package/CMakeFiles/test_package.dir/test_package.cpp.o] Error 1
make[1]: *** [test_package/CMakeFiles/test_package.dir/all] Error 2
make: *** [all] Error 2
dlib/19.24.2 (test package): WARN: 
     ************************************************
     The 'cmake_find_package_multi' generator is deprecated.
     Please update your code and remove it.
     *************************************************

dlib/19.24.2 (test package): WARN: 
     ************************************************
     The 'cmake' generator is deprecated.
     Please update your code and remove it.
     *************************************************

dlib/19.24.2 (test package): WARN: **** The 'from conans import CMake' helper is deprecated. Please update your code and remove it. ****
ERROR: dlib/19.24.2 (test package): Error in build() method, line 11
	cmake.build()
	ConanException: Error 2 while executing cmake --build '/home/conan/w/prod-v1/bsr/cci-2222eac8/recipes/dlib/all/test_v1_package/build/84359237c19c1f988fc1ba617bf850680528c8f3' '--' '-j3'