chmod +x ../build.sh
../build.sh -Dembed=true && mv ../build/release/lc0 Leela-1209835F-66E6C1B5
The Meson build system
Version: 0.63.0
Source dir: /tmp/tmprwxwa0n5/Leela/Leela-tmp
Build dir: /tmp/tmprwxwa0n5/Leela/Leela-tmp/build/release
Build type: native build
Project name: lc0
Project version: undefined
C++ compiler for the host machine: c++ (gcc 9.4.0 "c++ (Ubuntu 9.4.0-1ubuntu1~20.04.2) 9.4.0")
C++ linker for the host machine: c++ ld.bfd 2.34
Host machine cpu family: x86_64
Host machine cpu: x86_64
Has header "optional" : YES 
Has header "string_view" : YES 
Has header "charconv" : YES 
Compiler for C++ supports arguments -march=native: YES 
Program scripts/compile_proto.py found: YES (/usr/bin/python3 /tmp/tmprwxwa0n5/Leela/Leela-tmp/scripts/compile_proto.py)
Program git found: YES (/usr/bin/git)
Message: cloning lczero-common.git into libs/lczero-common
meson.build:117: WARNING: Failed to parse short revision. Use git clone instead of downloading the archive from GitHub.
Message: Using build identifier "git.unknown".
Configuring build_id.h using configuration
Run-time dependency threads found: YES
Library dl found: YES
Found pkg-config: /usr/bin/pkg-config (0.29.1)
Did not find CMake 'cmake'
Found CMake: NO
Run-time dependency tensorflow_cc found: NO (tried pkgconfig and cmake)
Run-time dependency accelerate found: NO (tried pkgconfig and cmake)
Library mkl_rt found: NO
Library mklml found: NO
Library dnnl found: NO
Library openblas.dll found: NO
Library openblas found: NO
Run-time dependency eigen3 found: NO (tried pkgconfig and cmake)
Looking for a fallback subproject for the dependency eigen3
Downloading eigen source from https://gitlab.com/libeigen/eigen/-/archive/3.4.0/eigen-3.4.0.tar.bz2
Downloading file of unknown size.
Downloading eigen patch from https://wrapdb.mesonbuild.com/v2/eigen_3.4.0-1/get_patch
Download size: 5619
Downloading: ..........

Executing subproject eigen 

eigen| Project name: eigen
eigen| Project version: 3.4.0
eigen| C++ compiler for the host machine: c++ (gcc 9.4.0 "c++ (Ubuntu 9.4.0-1ubuntu1~20.04.2) 9.4.0")
eigen| C++ linker for the host machine: c++ ld.bfd 2.34
eigen| Build targets in project: 0
eigen| Subproject eigen finished.

Dependency eigen3 from subproject subprojects/eigen-3.4.0 found: YES 3.4.0
Program ispc found: NO
Library OpenCL found: YES
Run-time dependency opencl found: NO 
Has header "CL/opencl.h" : NO 
Library cublas found: YES
Library cudnn found: NO
Library cudart found: YES
Program nvcc found: YES (/usr/local/cuda-11.5/bin/nvcc)
Run-time dependency appleframeworks found: NO (tried framework)
Run-time dependency zlib found: YES 1.2.11
Library libatomic found: YES
Run-time dependency GTest found: NO (tried pkgconfig and system)
Looking for a fallback subproject for the dependency gtest
Downloading gtest source from https://github.com/google/googletest/archive/release-1.10.0.zip
Download size: 1146687
Downloading: ..........
Downloading gtest patch from https://wrapdb.mesonbuild.com/v1/projects/gtest/1.10.0/1/get_zip
Download size: 2093
Downloading: ..........

Executing subproject gtest 

gtest| Project name: gtest
gtest| Project version: 1.10.0
gtest| C++ compiler for the host machine: c++ (gcc 9.4.0 "c++ (Ubuntu 9.4.0-1ubuntu1~20.04.2) 9.4.0")
gtest| C++ linker for the host machine: c++ ld.bfd 2.34
gtest| Dependency threads found: YES unknown (cached)
gtest| Dependency threads found: YES unknown (cached)
gtest| Dependency threads found: YES unknown (cached)
gtest| Dependency threads found: YES unknown (cached)
gtest| Build targets in project: 3
gtest| Subproject gtest finished.

Dependency gtest from subproject subprojects/googletest-release-1.10.0 found: YES 1.10.0
Build targets in project: 10

lc0 undefined

  Subprojects
    eigen    : YES
    gtest    : YES

  User defined options
    buildtype: release
    prefix   : /usr/local
    embed    : true

Found ninja-1.10.0 at /usr/bin/ninja
ninja: Entering directory `/tmp/tmprwxwa0n5/Leela/Leela-tmp/build/release'
[1/200] Generating 'lc0.p/neural/onnx/onnx.pb.h'.
[2/200] Generating 'liblc0_lib.so.p/neural/onnx/onnx.pb.h'.
[3/200] Generating 'lc0.p/neural/xla/hlo.pb.h'.
[4/200] Generating 'liblc0_lib.so.p/neural/xla/hlo.pb.h'.
[5/200] Generating 'lc0.p/proto/net.pb.h'.
[6/200] Generating 'liblc0_lib.so.p/proto/net.pb.h'.
[7/200] Generating 'encoder_test.p/proto/net.pb.h'.
[8/200] Compiling C++ object lc0.p/src_search_classic_params.cc.o
FAILED: lc0.p/src_search_classic_params.cc.o 
c++ -Ilc0.p -I. -I../.. -I../../src -I../../src/neural/backends/cuda -flto=48 -fdiagnostics-color=always -DNDEBUG -D_FILE_OFFSET_BITS=64 -Wall -Winvalid-pch -Wnon-virtual-dtor -Wextra -Wpedantic -std=c++2a -O3 -march=native -DNO_PEXT -DEMBED -pthread -isystem../../subprojects/eigen-3.4.0 -isystemsubprojects/eigen-3.4.0 -isystem/usr/local/cuda/include -isystem../../third_party -MD -MQ lc0.p/src_search_classic_params.cc.o -MF lc0.p/src_search_classic_params.cc.o.d -o lc0.p/src_search_classic_params.cc.o -c ../../src/search/classic/params.cc
In file included from ../../src/search/classic/params.h:30,
                 from ../../src/search/classic/params.cc:28:
../../src/neural/encoder.h:30:10: fatal error: span: No such file or directory
   30 | #include <span>
      |          ^~~~~~
compilation terminated.
[9/200] Compiling C++ object lc0.p/src_neural_memcache.cc.o
FAILED: lc0.p/src_neural_memcache.cc.o 
c++ -Ilc0.p -I. -I../.. -I../../src -I../../src/neural/backends/cuda -flto=48 -fdiagnostics-color=always -DNDEBUG -D_FILE_OFFSET_BITS=64 -Wall -Winvalid-pch -Wnon-virtual-dtor -Wextra -Wpedantic -std=c++2a -O3 -march=native -DNO_PEXT -DEMBED -pthread -isystem../../subprojects/eigen-3.4.0 -isystemsubprojects/eigen-3.4.0 -isystem/usr/local/cuda/include -isystem../../third_party -MD -MQ lc0.p/src_neural_memcache.cc.o -MF lc0.p/src_neural_memcache.cc.o.d -o lc0.p/src_neural_memcache.cc.o -c ../../src/neural/memcache.cc
In file included from ../../src/neural/memcache.h:30,
                 from ../../src/neural/memcache.cc:28:
../../src/neural/backend.h:33:10: fatal error: span: No such file or directory
   33 | #include <span>
      |          ^~~~~~
compilation terminated.
[10/200] Compiling C++ object lc0.p/src_search_register.cc.o
FAILED: lc0.p/src_search_register.cc.o 
c++ -Ilc0.p -I. -I../.. -I../../src -I../../src/neural/backends/cuda -flto=48 -fdiagnostics-color=always -DNDEBUG -D_FILE_OFFSET_BITS=64 -Wall -Winvalid-pch -Wnon-virtual-dtor -Wextra -Wpedantic -std=c++2a -O3 -march=native -DNO_PEXT -DEMBED -pthread -isystem../../subprojects/eigen-3.4.0 -isystemsubprojects/eigen-3.4.0 -isystem/usr/local/cuda/include -isystem../../third_party -MD -MQ lc0.p/src_search_register.cc.o -MF lc0.p/src_search_register.cc.o.d -o lc0.p/src_search_register.cc.o -c ../../src/search/register.cc
In file included from ../../src/search/register.h:33,
                 from ../../src/search/register.cc:28:
../../src/search/search.h:31:10: fatal error: span: No such file or directory
   31 | #include <span>
      |          ^~~~~~
compilation terminated.
[11/200] Compiling C++ object lc0.p/src_main.cc.o
FAILED: lc0.p/src_main.cc.o 
c++ -Ilc0.p -I. -I../.. -I../../src -I../../src/neural/backends/cuda -flto=48 -fdiagnostics-color=always -DNDEBUG -D_FILE_OFFSET_BITS=64 -Wall -Winvalid-pch -Wnon-virtual-dtor -Wextra -Wpedantic -std=c++2a -O3 -march=native -DNO_PEXT -DEMBED -pthread -isystem../../subprojects/eigen-3.4.0 -isystemsubprojects/eigen-3.4.0 -isystem/usr/local/cuda/include -isystem../../third_party -MD -MQ lc0.p/src_main.cc.o -MF lc0.p/src_main.cc.o.d -o lc0.p/src_main.cc.o -c ../../src/main.cc
In file included from ../../src/chess/callbacks.h:37,
                 from ../../src/chess/uciloop.h:36,
                 from ../../src/engine_loop.h:33,
                 from ../../src/engine.h:32,
                 from ../../src/main.cc:29:
../../src/chess/position.h:30:10: fatal error: span: No such file or directory
   30 | #include <span>
      |          ^~~~~~
compilation terminated.
[12/200] Compiling C++ object lc0.p/src_engine_classic.cc.o
FAILED: lc0.p/src_engine_classic.cc.o 
c++ -Ilc0.p -I. -I../.. -I../../src -I../../src/neural/backends/cuda -flto=48 -fdiagnostics-color=always -DNDEBUG -D_FILE_OFFSET_BITS=64 -Wall -Winvalid-pch -Wnon-virtual-dtor -Wextra -Wpedantic -std=c++2a -O3 -march=native -DNO_PEXT -DEMBED -pthread -isystem../../subprojects/eigen-3.4.0 -isystemsubprojects/eigen-3.4.0 -isystem/usr/local/cuda/include -isystem../../third_party -MD -MQ lc0.p/src_engine_classic.cc.o -MF lc0.p/src_engine_classic.cc.o.d -o lc0.p/src_engine_classic.cc.o -c ../../src/engine_classic.cc
In file included from ../../src/chess/callbacks.h:37,
                 from ../../src/chess/uciloop.h:36,
                 from ../../src/engine_loop.h:33,
                 from ../../src/engine_classic.h:32,
                 from ../../src/engine_classic.cc:28:
../../src/chess/position.h:30:10: fatal error: span: No such file or directory
   30 | #include <span>
      |          ^~~~~~
compilation terminated.
[13/200] Compiling C++ object lc0.p/src_search_classic_stoppers_legacy.cc.o
FAILED: lc0.p/src_search_classic_stoppers_legacy.cc.o 
c++ -Ilc0.p -I. -I../.. -I../../src -I../../src/neural/backends/cuda -flto=48 -fdiagnostics-color=always -DNDEBUG -D_FILE_OFFSET_BITS=64 -Wall -Winvalid-pch -Wnon-virtual-dtor -Wextra -Wpedantic -std=c++2a -O3 -march=native -DNO_PEXT -DEMBED -pthread -isystem../../subprojects/eigen-3.4.0 -isystemsubprojects/eigen-3.4.0 -isystem/usr/local/cuda/include -isystem../../third_party -MD -MQ lc0.p/src_search_classic_stoppers_legacy.cc.o -MF lc0.p/src_search_classic_stoppers_legacy.cc.o.d -o lc0.p/src_search_classic_stoppers_legacy.cc.o -c ../../src/search/classic/stoppers/legacy.cc
In file included from ../../src/chess/callbacks.h:37,
                 from ../../src/chess/uciloop.h:36,
                 from ../../src/search/classic/stoppers/timemgr.h:35,
                 from ../../src/search/classic/stoppers/legacy.h:30,
                 from ../../src/search/classic/stoppers/legacy.cc:28:
../../src/chess/position.h:30:10: fatal error: span: No such file or directory
   30 | #include <span>
      |          ^~~~~~
compilation terminated.
[14/200] Compiling C++ object lc0.p/src_selfplay_loop.cc.o
FAILED: lc0.p/src_selfplay_loop.cc.o 
c++ -Ilc0.p -I. -I../.. -I../../src -I../../src/neural/backends/cuda -flto=48 -fdiagnostics-color=always -DNDEBUG -D_FILE_OFFSET_BITS=64 -Wall -Winvalid-pch -Wnon-virtual-dtor -Wextra -Wpedantic -std=c++2a -O3 -march=native -DNO_PEXT -DEMBED -pthread -isystem../../subprojects/eigen-3.4.0 -isystemsubprojects/eigen-3.4.0 -isystem/usr/local/cuda/include -isystem../../third_party -MD -MQ lc0.p/src_selfplay_loop.cc.o -MF lc0.p/src_selfplay_loop.cc.o.d -o lc0.p/src_selfplay_loop.cc.o -c ../../src/selfplay/loop.cc
In file included from ../../src/chess/callbacks.h:37,
                 from ../../src/chess/uciloop.h:36,
                 from ../../src/selfplay/loop.h:31,
                 from ../../src/selfplay/loop.cc:28:
../../src/chess/position.h:30:10: fatal error: span: No such file or directory
   30 | #include <span>
      |          ^~~~~~
compilation terminated.
[15/200] Compiling C++ object lc0.p/src_search_classic_stoppers_timemgr.cc.o
FAILED: lc0.p/src_search_classic_stoppers_timemgr.cc.o 
c++ -Ilc0.p -I. -I../.. -I../../src -I../../src/neural/backends/cuda -flto=48 -fdiagnostics-color=always -DNDEBUG -D_FILE_OFFSET_BITS=64 -Wall -Winvalid-pch -Wnon-virtual-dtor -Wextra -Wpedantic -std=c++2a -O3 -march=native -DNO_PEXT -DEMBED -pthread -isystem../../subprojects/eigen-3.4.0 -isystemsubprojects/eigen-3.4.0 -isystem/usr/local/cuda/include -isystem../../third_party -MD -MQ lc0.p/src_search_classic_stoppers_timemgr.cc.o -MF lc0.p/src_search_classic_stoppers_timemgr.cc.o.d -o lc0.p/src_search_classic_stoppers_timemgr.cc.o -c ../../src/search/classic/stoppers/timemgr.cc
In file included from ../../src/chess/callbacks.h:37,
                 from ../../src/chess/uciloop.h:36,
                 from ../../src/search/classic/stoppers/timemgr.h:35,
                 from ../../src/search/classic/stoppers/timemgr.cc:28:
../../src/chess/position.h:30:10: fatal error: span: No such file or directory
   30 | #include <span>
      |          ^~~~~~
compilation terminated.
[16/200] Compiling C++ object lc0.p/src_engine.cc.o
FAILED: lc0.p/src_engine.cc.o 
c++ -Ilc0.p -I. -I../.. -I../../src -I../../src/neural/backends/cuda -flto=48 -fdiagnostics-color=always -DNDEBUG -D_FILE_OFFSET_BITS=64 -Wall -Winvalid-pch -Wnon-virtual-dtor -Wextra -Wpedantic -std=c++2a -O3 -march=native -DNO_PEXT -DEMBED -pthread -isystem../../subprojects/eigen-3.4.0 -isystemsubprojects/eigen-3.4.0 -isystem/usr/local/cuda/include -isystem../../third_party -MD -MQ lc0.p/src_engine.cc.o -MF lc0.p/src_engine.cc.o.d -o lc0.p/src_engine.cc.o -c ../../src/engine.cc
In file included from ../../src/chess/callbacks.h:37,
                 from ../../src/chess/uciloop.h:36,
                 from ../../src/engine_loop.h:33,
                 from ../../src/engine.h:32,
                 from ../../src/engine.cc:28:
../../src/chess/position.h:30:10: fatal error: span: No such file or directory
   30 | #include <span>
      |          ^~~~~~
compilation terminated.
[17/200] Compiling C++ object lc0.p/src_engine_loop.cc.o
FAILED: lc0.p/src_engine_loop.cc.o 
c++ -Ilc0.p -I. -I../.. -I../../src -I../../src/neural/backends/cuda -flto=48 -fdiagnostics-color=always -DNDEBUG -D_FILE_OFFSET_BITS=64 -Wall -Winvalid-pch -Wnon-virtual-dtor -Wextra -Wpedantic -std=c++2a -O3 -march=native -DNO_PEXT -DEMBED -pthread -isystem../../subprojects/eigen-3.4.0 -isystemsubprojects/eigen-3.4.0 -isystem/usr/local/cuda/include -isystem../../third_party -MD -MQ lc0.p/src_engine_loop.cc.o -MF lc0.p/src_engine_loop.cc.o.d -o lc0.p/src_engine_loop.cc.o -c ../../src/engine_loop.cc
In file included from ../../src/chess/callbacks.h:37,
                 from ../../src/chess/uciloop.h:36,
                 from ../../src/engine_loop.h:33,
                 from ../../src/engine_loop.cc:28:
../../src/chess/position.h:30:10: fatal error: span: No such file or directory
   30 | #include <span>
      |          ^~~~~~
compilation terminated.
[18/200] Compiling C++ object lc0.p/src_tools_benchmark.cc.o
FAILED: lc0.p/src_tools_benchmark.cc.o 
c++ -Ilc0.p -I. -I../.. -I../../src -I../../src/neural/backends/cuda -flto=48 -fdiagnostics-color=always -DNDEBUG -D_FILE_OFFSET_BITS=64 -Wall -Winvalid-pch -Wnon-virtual-dtor -Wextra -Wpedantic -std=c++2a -O3 -march=native -DNO_PEXT -DEMBED -pthread -isystem../../subprojects/eigen-3.4.0 -isystemsubprojects/eigen-3.4.0 -isystem/usr/local/cuda/include -isystem../../third_party -MD -MQ lc0.p/src_tools_benchmark.cc.o -MF lc0.p/src_tools_benchmark.cc.o.d -o lc0.p/src_tools_benchmark.cc.o -c ../../src/tools/benchmark.cc
In file included from ../../src/chess/callbacks.h:37,
                 from ../../src/search/classic/search.h:37,
                 from ../../src/tools/benchmark.h:30,
                 from ../../src/tools/benchmark.cc:28:
../../src/chess/position.h:30:10: fatal error: span: No such file or directory
   30 | #include <span>
      |          ^~~~~~
compilation terminated.
[19/200] Compiling C++ object lc0.p/src_search_classic_search.cc.o
FAILED: lc0.p/src_search_classic_search.cc.o 
c++ -Ilc0.p -I. -I../.. -I../../src -I../../src/neural/backends/cuda -flto=48 -fdiagnostics-color=always -DNDEBUG -D_FILE_OFFSET_BITS=64 -Wall -Winvalid-pch -Wnon-virtual-dtor -Wextra -Wpedantic -std=c++2a -O3 -march=native -DNO_PEXT -DEMBED -pthread -isystem../../subprojects/eigen-3.4.0 -isystemsubprojects/eigen-3.4.0 -isystem/usr/local/cuda/include -isystem../../third_party -MD -MQ lc0.p/src_search_classic_search.cc.o -MF lc0.p/src_search_classic_search.cc.o.d -o lc0.p/src_search_classic_search.cc.o -c ../../src/search/classic/search.cc
In file included from ../../src/chess/callbacks.h:37,
                 from ../../src/search/classic/search.h:37,
                 from ../../src/search/classic/search.cc:28:
../../src/chess/position.h:30:10: fatal error: span: No such file or directory
   30 | #include <span>
      |          ^~~~~~
compilation terminated.
[20/200] Compiling C++ object lc0.p/src_search_classic_stoppers_smooth.cc.o
FAILED: lc0.p/src_search_classic_stoppers_smooth.cc.o 
c++ -Ilc0.p -I. -I../.. -I../../src -I../../src/neural/backends/cuda -flto=48 -fdiagnostics-color=always -DNDEBUG -D_FILE_OFFSET_BITS=64 -Wall -Winvalid-pch -Wnon-virtual-dtor -Wextra -Wpedantic -std=c++2a -O3 -march=native -DNO_PEXT -DEMBED -pthread -isystem../../subprojects/eigen-3.4.0 -isystemsubprojects/eigen-3.4.0 -isystem/usr/local/cuda/include -isystem../../third_party -MD -MQ lc0.p/src_search_classic_stoppers_smooth.cc.o -MF lc0.p/src_search_classic_stoppers_smooth.cc.o.d -o lc0.p/src_search_classic_stoppers_smooth.cc.o -c ../../src/search/classic/stoppers/smooth.cc
In file included from ../../src/chess/callbacks.h:37,
                 from ../../src/chess/uciloop.h:36,
                 from ../../src/search/classic/stoppers/timemgr.h:35,
                 from ../../src/search/classic/stoppers/smooth.h:30,
                 from ../../src/search/classic/stoppers/smooth.cc:28:
../../src/chess/position.h:30:10: fatal error: span: No such file or directory
   30 | #include <span>
      |          ^~~~~~
compilation terminated.
[21/200] Compiling C++ object lc0.p/src_neural_backends_network_mux.cc.o
FAILED: lc0.p/src_neural_backends_network_mux.cc.o 
c++ -Ilc0.p -I. -I../.. -I../../src -I../../src/neural/backends/cuda -flto=48 -fdiagnostics-color=always -DNDEBUG -D_FILE_OFFSET_BITS=64 -Wall -Winvalid-pch -Wnon-virtual-dtor -Wextra -Wpedantic -std=c++2a -O3 -march=native -DNO_PEXT -DEMBED -pthread -isystem../../subprojects/eigen-3.4.0 -isystemsubprojects/eigen-3.4.0 -isystem/usr/local/cuda/include -isystem../../third_party -MD -MQ lc0.p/src_neural_backends_network_mux.cc.o -MF lc0.p/src_neural_backends_network_mux.cc.o.d -o lc0.p/src_neural_backends_network_mux.cc.o -c ../../src/neural/backends/network_mux.cc
In file included from ../../src/neural/register.h:31,
                 from ../../src/neural/wrapper.h:34,
                 from ../../src/neural/factory.h:36,
                 from ../../src/neural/backends/network_mux.cc:32:
../../src/neural/backend.h:33:10: fatal error: span: No such file or directory
   33 | #include <span>
      |          ^~~~~~
compilation terminated.
[22/200] Compiling C++ object lc0.p/src_search_classic_stoppers_stoppers.cc.o
FAILED: lc0.p/src_search_classic_stoppers_stoppers.cc.o 
c++ -Ilc0.p -I. -I../.. -I../../src -I../../src/neural/backends/cuda -flto=48 -fdiagnostics-color=always -DNDEBUG -D_FILE_OFFSET_BITS=64 -Wall -Winvalid-pch -Wnon-virtual-dtor -Wextra -Wpedantic -std=c++2a -O3 -march=native -DNO_PEXT -DEMBED -pthread -isystem../../subprojects/eigen-3.4.0 -isystemsubprojects/eigen-3.4.0 -isystem/usr/local/cuda/include -isystem../../third_party -MD -MQ lc0.p/src_search_classic_stoppers_stoppers.cc.o -MF lc0.p/src_search_classic_stoppers_stoppers.cc.o.d -o lc0.p/src_search_classic_stoppers_stoppers.cc.o -c ../../src/search/classic/stoppers/stoppers.cc
In file included from ../../src/chess/callbacks.h:37,
                 from ../../src/search/classic/node.h:37,
                 from ../../src/search/classic/stoppers/stoppers.h:33,
                 from ../../src/search/classic/stoppers/stoppers.cc:28:
../../src/chess/position.h:30:10: fatal error: span: No such file or directory
   30 | #include <span>
      |          ^~~~~~
compilation terminated.
[23/200] Compiling C++ object lc0.p/src_selfplay_game.cc.o
FAILED: lc0.p/src_selfplay_game.cc.o 
c++ -Ilc0.p -I. -I../.. -I../../src -I../../src/neural/backends/cuda -flto=48 -fdiagnostics-color=always -DNDEBUG -D_FILE_OFFSET_BITS=64 -Wall -Winvalid-pch -Wnon-virtual-dtor -Wextra -Wpedantic -std=c++2a -O3 -march=native -DNO_PEXT -DEMBED -pthread -isystem../../subprojects/eigen-3.4.0 -isystemsubprojects/eigen-3.4.0 -isystem/usr/local/cuda/include -isystem../../third_party -MD -MQ lc0.p/src_selfplay_game.cc.o -MF lc0.p/src_selfplay_game.cc.o.d -o lc0.p/src_selfplay_game.cc.o -c ../../src/selfplay/game.cc
In file included from ../../src/selfplay/game.h:31,
                 from ../../src/selfplay/game.cc:28:
../../src/chess/position.h:30:10: fatal error: span: No such file or directory
   30 | #include <span>
      |          ^~~~~~
compilation terminated.
[24/200] Compiling C++ object lc0.p/src_neural_backends_network_demux.cc.o
FAILED: lc0.p/src_neural_backends_network_demux.cc.o 
c++ -Ilc0.p -I. -I../.. -I../../src -I../../src/neural/backends/cuda -flto=48 -fdiagnostics-color=always -DNDEBUG -D_FILE_OFFSET_BITS=64 -Wall -Winvalid-pch -Wnon-virtual-dtor -Wextra -Wpedantic -std=c++2a -O3 -march=native -DNO_PEXT -DEMBED -pthread -isystem../../subprojects/eigen-3.4.0 -isystemsubprojects/eigen-3.4.0 -isystem/usr/local/cuda/include -isystem../../third_party -MD -MQ lc0.p/src_neural_backends_network_demux.cc.o -MF lc0.p/src_neural_backends_network_demux.cc.o.d -o lc0.p/src_neural_backends_network_demux.cc.o -c ../../src/neural/backends/network_demux.cc
In file included from ../../src/neural/register.h:31,
                 from ../../src/neural/wrapper.h:34,
                 from ../../src/neural/factory.h:36,
                 from ../../src/neural/backends/network_demux.cc:32:
../../src/neural/backend.h:33:10: fatal error: span: No such file or directory
   33 | #include <span>
      |          ^~~~~~
compilation terminated.
[25/200] Compiling C++ object lc0.p/src_search_instamove_instamove.cc.o
FAILED: lc0.p/src_search_instamove_instamove.cc.o 
c++ -Ilc0.p -I. -I../.. -I../../src -I../../src/neural/backends/cuda -flto=48 -fdiagnostics-color=always -DNDEBUG -D_FILE_OFFSET_BITS=64 -Wall -Winvalid-pch -Wnon-virtual-dtor -Wextra -Wpedantic -std=c++2a -O3 -march=native -DNO_PEXT -DEMBED -pthread -isystem../../subprojects/eigen-3.4.0 -isystemsubprojects/eigen-3.4.0 -isystem/usr/local/cuda/include -isystem../../third_party -MD -MQ lc0.p/src_search_instamove_instamove.cc.o -MF lc0.p/src_search_instamove_instamove.cc.o.d -o lc0.p/src_search_instamove_instamove.cc.o -c ../../src/search/instamove/instamove.cc
In file included from ../../src/chess/callbacks.h:37,
                 from ../../src/chess/uciloop.h:36,
                 from ../../src/search/instamove/instamove.h:32,
                 from ../../src/search/instamove/instamove.cc:28:
../../src/chess/position.h:30:10: fatal error: span: No such file or directory
   30 | #include <span>
      |          ^~~~~~
compilation terminated.
[26/200] Compiling C++ object lc0.p/src_neural_backends_network_check.cc.o
FAILED: lc0.p/src_neural_backends_network_check.cc.o 
c++ -Ilc0.p -I. -I../.. -I../../src -I../../src/neural/backends/cuda -flto=48 -fdiagnostics-color=always -DNDEBUG -D_FILE_OFFSET_BITS=64 -Wall -Winvalid-pch -Wnon-virtual-dtor -Wextra -Wpedantic -std=c++2a -O3 -march=native -DNO_PEXT -DEMBED -pthread -isystem../../subprojects/eigen-3.4.0 -isystemsubprojects/eigen-3.4.0 -isystem/usr/local/cuda/include -isystem../../third_party -MD -MQ lc0.p/src_neural_backends_network_check.cc.o -MF lc0.p/src_neural_backends_network_check.cc.o.d -o lc0.p/src_neural_backends_network_check.cc.o -c ../../src/neural/backends/network_check.cc
In file included from ../../src/neural/decoder.h:30,
                 from ../../src/neural/backends/network_check.cc:32:
../../src/chess/position.h:30:10: fatal error: span: No such file or directory
   30 | #include <span>
      |          ^~~~~~
compilation terminated.
[27/200] Compiling C++ object lc0.p/src_neural_factory.cc.o
FAILED: lc0.p/src_neural_factory.cc.o 
c++ -Ilc0.p -I. -I../.. -I../../src -I../../src/neural/backends/cuda -flto=48 -fdiagnostics-color=always -DNDEBUG -D_FILE_OFFSET_BITS=64 -Wall -Winvalid-pch -Wnon-virtual-dtor -Wextra -Wpedantic -std=c++2a -O3 -march=native -DNO_PEXT -DEMBED -pthread -isystem../../subprojects/eigen-3.4.0 -isystemsubprojects/eigen-3.4.0 -isystem/usr/local/cuda/include -isystem../../third_party -MD -MQ lc0.p/src_neural_factory.cc.o -MF lc0.p/src_neural_factory.cc.o.d -o lc0.p/src_neural_factory.cc.o -c ../../src/neural/factory.cc
In file included from ../../src/neural/register.h:31,
                 from ../../src/neural/wrapper.h:34,
                 from ../../src/neural/factory.h:36,
                 from ../../src/neural/factory.cc:28:
../../src/neural/backend.h:33:10: fatal error: span: No such file or directory
   33 | #include <span>
      |          ^~~~~~
compilation terminated.
[28/200] Compiling C++ object lc0.p/src_neural_backends_network_rr.cc.o
FAILED: lc0.p/src_neural_backends_network_rr.cc.o 
c++ -Ilc0.p -I. -I../.. -I../../src -I../../src/neural/backends/cuda -flto=48 -fdiagnostics-color=always -DNDEBUG -D_FILE_OFFSET_BITS=64 -Wall -Winvalid-pch -Wnon-virtual-dtor -Wextra -Wpedantic -std=c++2a -O3 -march=native -DNO_PEXT -DEMBED -pthread -isystem../../subprojects/eigen-3.4.0 -isystemsubprojects/eigen-3.4.0 -isystem/usr/local/cuda/include -isystem../../third_party -MD -MQ lc0.p/src_neural_backends_network_rr.cc.o -MF lc0.p/src_neural_backends_network_rr.cc.o.d -o lc0.p/src_neural_backends_network_rr.cc.o -c ../../src/neural/backends/network_rr.cc
In file included from ../../src/neural/register.h:31,
                 from ../../src/neural/wrapper.h:34,
                 from ../../src/neural/factory.h:36,
                 from ../../src/neural/backends/network_rr.cc:32:
../../src/neural/backend.h:33:10: fatal error: span: No such file or directory
   33 | #include <span>
      |          ^~~~~~
compilation terminated.
[29/200] Compiling C++ object lc0.p/src_selfplay_multigame.cc.o
FAILED: lc0.p/src_selfplay_multigame.cc.o 
c++ -Ilc0.p -I. -I../.. -I../../src -I../../src/neural/backends/cuda -flto=48 -fdiagnostics-color=always -DNDEBUG -D_FILE_OFFSET_BITS=64 -Wall -Winvalid-pch -Wnon-virtual-dtor -Wextra -Wpedantic -std=c++2a -O3 -march=native -DNO_PEXT -DEMBED -pthread -isystem../../subprojects/eigen-3.4.0 -isystemsubprojects/eigen-3.4.0 -isystem/usr/local/cuda/include -isystem../../third_party -MD -MQ lc0.p/src_selfplay_multigame.cc.o -MF lc0.p/src_selfplay_multigame.cc.o.d -o lc0.p/src_selfplay_multigame.cc.o -c ../../src/selfplay/multigame.cc
In file included from ../../src/selfplay/game.h:31,
                 from ../../src/selfplay/multigame.h:30,
                 from ../../src/selfplay/multigame.cc:28:
../../src/chess/position.h:30:10: fatal error: span: No such file or directory
   30 | #include <span>
      |          ^~~~~~
compilation terminated.
[30/200] Compiling C++ object lc0.p/src_search_classic_stoppers_factory.cc.o
FAILED: lc0.p/src_search_classic_stoppers_factory.cc.o 
c++ -Ilc0.p -I. -I../.. -I../../src -I../../src/neural/backends/cuda -flto=48 -fdiagnostics-color=always -DNDEBUG -D_FILE_OFFSET_BITS=64 -Wall -Winvalid-pch -Wnon-virtual-dtor -Wextra -Wpedantic -std=c++2a -O3 -march=native -DNO_PEXT -DEMBED -pthread -isystem../../subprojects/eigen-3.4.0 -isystemsubprojects/eigen-3.4.0 -isystem/usr/local/cuda/include -isystem../../third_party -MD -MQ lc0.p/src_search_classic_stoppers_factory.cc.o -MF lc0.p/src_search_classic_stoppers_factory.cc.o.d -o lc0.p/src_search_classic_stoppers_factory.cc.o -c ../../src/search/classic/stoppers/factory.cc
In file included from ../../src/chess/callbacks.h:37,
                 from ../../src/search/classic/node.h:37,
                 from ../../src/search/classic/stoppers/stoppers.h:33,
                 from ../../src/search/classic/stoppers/common.h:30,
                 from ../../src/search/classic/stoppers/factory.h:30,
                 from ../../src/search/classic/stoppers/factory.cc:28:
../../src/chess/position.h:30:10: fatal error: span: No such file or directory
   30 | #include <span>
      |          ^~~~~~
compilation terminated.
[31/200] Compiling C++ object lc0.p/src_neural_backends_network_record.cc.o
FAILED: lc0.p/src_neural_backends_network_record.cc.o 
c++ -Ilc0.p -I. -I../.. -I../../src -I../../src/neural/backends/cuda -flto=48 -fdiagnostics-color=always -DNDEBUG -D_FILE_OFFSET_BITS=64 -Wall -Winvalid-pch -Wnon-virtual-dtor -Wextra -Wpedantic -std=c++2a -O3 -march=native -DNO_PEXT -DEMBED -pthread -isystem../../subprojects/eigen-3.4.0 -isystemsubprojects/eigen-3.4.0 -isystem/usr/local/cuda/include -isystem../../third_party -MD -MQ lc0.p/src_neural_backends_network_record.cc.o -MF lc0.p/src_neural_backends_network_record.cc.o.d -o lc0.p/src_neural_backends_network_record.cc.o -c ../../src/neural/backends/network_record.cc
In file included from ../../src/neural/register.h:31,
                 from ../../src/neural/wrapper.h:34,
                 from ../../src/neural/factory.h:36,
                 from ../../src/neural/backends/network_record.cc:30:
../../src/neural/backend.h:33:10: fatal error: span: No such file or directory
   33 | #include <span>
      |          ^~~~~~
compilation terminated.
[32/200] Compiling C++ object lc0.p/src_search_classic_stoppers_simple.cc.o
FAILED: lc0.p/src_search_classic_stoppers_simple.cc.o 
c++ -Ilc0.p -I. -I../.. -I../../src -I../../src/neural/backends/cuda -flto=48 -fdiagnostics-color=always -DNDEBUG -D_FILE_OFFSET_BITS=64 -Wall -Winvalid-pch -Wnon-virtual-dtor -Wextra -Wpedantic -std=c++2a -O3 -march=native -DNO_PEXT -DEMBED -pthread -isystem../../subprojects/eigen-3.4.0 -isystemsubprojects/eigen-3.4.0 -isystem/usr/local/cuda/include -isystem../../third_party -MD -MQ lc0.p/src_search_classic_stoppers_simple.cc.o -MF lc0.p/src_search_classic_stoppers_simple.cc.o.d -o lc0.p/src_search_classic_stoppers_simple.cc.o -c ../../src/search/classic/stoppers/simple.cc
In file included from ../../src/chess/callbacks.h:37,
                 from ../../src/search/classic/node.h:37,
                 from ../../src/search/classic/stoppers/stoppers.h:33,
                 from ../../src/search/classic/stoppers/simple.cc:28:
../../src/chess/position.h:30:10: fatal error: span: No such file or directory
   30 | #include <span>
      |          ^~~~~~
compilation terminated.
[33/200] Compiling C++ object lc0.p/src_search_classic_stoppers_common.cc.o
FAILED: lc0.p/src_search_classic_stoppers_common.cc.o 
c++ -Ilc0.p -I. -I../.. -I../../src -I../../src/neural/backends/cuda -flto=48 -fdiagnostics-color=always -DNDEBUG -D_FILE_OFFSET_BITS=64 -Wall -Winvalid-pch -Wnon-virtual-dtor -Wextra -Wpedantic -std=c++2a -O3 -march=native -DNO_PEXT -DEMBED -pthread -isystem../../subprojects/eigen-3.4.0 -isystemsubprojects/eigen-3.4.0 -isystem/usr/local/cuda/include -isystem../../third_party -MD -MQ lc0.p/src_search_classic_stoppers_common.cc.o -MF lc0.p/src_search_classic_stoppers_common.cc.o.d -o lc0.p/src_search_classic_stoppers_common.cc.o -c ../../src/search/classic/stoppers/common.cc
In file included from ../../src/chess/callbacks.h:37,
                 from ../../src/search/classic/node.h:37,
                 from ../../src/search/classic/stoppers/stoppers.h:33,
                 from ../../src/search/classic/stoppers/common.h:30,
                 from ../../src/search/classic/stoppers/common.cc:28:
../../src/chess/position.h:30:10: fatal error: span: No such file or directory
   30 | #include <span>
      |          ^~~~~~
compilation terminated.
[34/200] Compiling C++ object lc0.p/src_neural_backends_network_trivial.cc.o
FAILED: lc0.p/src_neural_backends_network_trivial.cc.o 
c++ -Ilc0.p -I. -I../.. -I../../src -I../../src/neural/backends/cuda -flto=48 -fdiagnostics-color=always -DNDEBUG -D_FILE_OFFSET_BITS=64 -Wall -Winvalid-pch -Wnon-virtual-dtor -Wextra -Wpedantic -std=c++2a -O3 -march=native -DNO_PEXT -DEMBED -pthread -isystem../../subprojects/eigen-3.4.0 -isystemsubprojects/eigen-3.4.0 -isystem/usr/local/cuda/include -isystem../../third_party -MD -MQ lc0.p/src_neural_backends_network_trivial.cc.o -MF lc0.p/src_neural_backends_network_trivial.cc.o.d -o lc0.p/src_neural_backends_network_trivial.cc.o -c ../../src/neural/backends/network_trivial.cc
In file included from ../../src/neural/register.h:31,
                 from ../../src/neural/wrapper.h:34,
                 from ../../src/neural/factory.h:36,
                 from ../../src/neural/backends/network_trivial.cc:41:
../../src/neural/backend.h:33:10: fatal error: span: No such file or directory
   33 | #include <span>
      |          ^~~~~~
compilation terminated.
[35/200] Compiling C++ object lc0.p/src_tools_backendbench.cc.o
FAILED: lc0.p/src_tools_backendbench.cc.o 
c++ -Ilc0.p -I. -I../.. -I../../src -I../../src/neural/backends/cuda -flto=48 -fdiagnostics-color=always -DNDEBUG -D_FILE_OFFSET_BITS=64 -Wall -Winvalid-pch -Wnon-virtual-dtor -Wextra -Wpedantic -std=c++2a -O3 -march=native -DNO_PEXT -DEMBED -pthread -isystem../../subprojects/eigen-3.4.0 -isystemsubprojects/eigen-3.4.0 -isystem/usr/local/cuda/include -isystem../../third_party -MD -MQ lc0.p/src_tools_backendbench.cc.o -MF lc0.p/src_tools_backendbench.cc.o.d -o lc0.p/src_tools_backendbench.cc.o -c ../../src/tools/backendbench.cc
In file included from ../../src/neural/register.h:31,
                 from ../../src/neural/wrapper.h:34,
                 from ../../src/neural/factory.h:36,
                 from ../../src/tools/backendbench.cc:31:
../../src/neural/backend.h:33:10: fatal error: span: No such file or directory
   33 | #include <span>
      |          ^~~~~~
compilation terminated.
[36/200] Compiling C++ object lc0.p/src_search_classic_stoppers_alphazero.cc.o
FAILED: lc0.p/src_search_classic_stoppers_alphazero.cc.o 
c++ -Ilc0.p -I. -I../.. -I../../src -I../../src/neural/backends/cuda -flto=48 -fdiagnostics-color=always -DNDEBUG -D_FILE_OFFSET_BITS=64 -Wall -Winvalid-pch -Wnon-virtual-dtor -Wextra -Wpedantic -std=c++2a -O3 -march=native -DNO_PEXT -DEMBED -pthread -isystem../../subprojects/eigen-3.4.0 -isystemsubprojects/eigen-3.4.0 -isystem/usr/local/cuda/include -isystem../../third_party -MD -MQ lc0.p/src_search_classic_stoppers_alphazero.cc.o -MF lc0.p/src_search_classic_stoppers_alphazero.cc.o.d -o lc0.p/src_search_classic_stoppers_alphazero.cc.o -c ../../src/search/classic/stoppers/alphazero.cc
In file included from ../../src/chess/callbacks.h:37,
                 from ../../src/search/classic/node.h:37,
                 from ../../src/search/classic/stoppers/stoppers.h:33,
                 from ../../src/search/classic/stoppers/alphazero.cc:28:
../../src/chess/position.h:30:10: fatal error: span: No such file or directory
   30 | #include <span>
      |          ^~~~~~
compilation terminated.
[37/200] Compiling C++ object lc0.p/src_selfplay_tournament.cc.o
FAILED: lc0.p/src_selfplay_tournament.cc.o 
c++ -Ilc0.p -I. -I../.. -I../../src -I../../src/neural/backends/cuda -flto=48 -fdiagnostics-color=always -DNDEBUG -D_FILE_OFFSET_BITS=64 -Wall -Winvalid-pch -Wnon-virtual-dtor -Wextra -Wpedantic -std=c++2a -O3 -march=native -DNO_PEXT -DEMBED -pthread -isystem../../subprojects/eigen-3.4.0 -isystemsubprojects/eigen-3.4.0 -isystem/usr/local/cuda/include -isystem../../third_party -MD -MQ lc0.p/src_selfplay_tournament.cc.o -MF lc0.p/src_selfplay_tournament.cc.o.d -o lc0.p/src_selfplay_tournament.cc.o -c ../../src/selfplay/tournament.cc
In file included from ../../src/neural/register.h:31,
                 from ../../src/neural/wrapper.h:34,
                 from ../../src/neural/factory.h:36,
                 from ../../src/selfplay/tournament.h:33,
                 from ../../src/selfplay/tournament.cc:28:
../../src/neural/backend.h:33:10: fatal error: span: No such file or directory
   33 | #include <span>
      |          ^~~~~~
compilation terminated.
[38/200] Compiling C++ object lc0.p/src_neural_backends_network_random.cc.o
FAILED: lc0.p/src_neural_backends_network_random.cc.o 
c++ -Ilc0.p -I. -I../.. -I../../src -I../../src/neural/backends/cuda -flto=48 -fdiagnostics-color=always -DNDEBUG -D_FILE_OFFSET_BITS=64 -Wall -Winvalid-pch -Wnon-virtual-dtor -Wextra -Wpedantic -std=c++2a -O3 -march=native -DNO_PEXT -DEMBED -pthread -isystem../../subprojects/eigen-3.4.0 -isystemsubprojects/eigen-3.4.0 -isystem/usr/local/cuda/include -isystem../../third_party -MD -MQ lc0.p/src_neural_backends_network_random.cc.o -MF lc0.p/src_neural_backends_network_random.cc.o.d -o lc0.p/src_neural_backends_network_random.cc.o -c ../../src/neural/backends/network_random.cc
In file included from ../../src/neural/register.h:31,
                 from ../../src/neural/wrapper.h:34,
                 from ../../src/neural/factory.h:36,
                 from ../../src/neural/backends/network_random.cc:35:
../../src/neural/backend.h:33:10: fatal error: span: No such file or directory
   33 | #include <span>
      |          ^~~~~~
compilation terminated.
[39/200] Compiling C++ object lc0.p/src_utils_numa.cc.o
[40/200] Compiling C++ object lc0.p/src_utils_histogram.cc.o
[41/200] Compiling C++ object lc0.p/src_utils_weights_adapter.cc.o
[42/200] Compiling C++ object lc0.p/src_neural_cache.cc.o
[43/200] Compiling C++ object lc0.p/src_neural_xla_print_hlo.cc.o
[44/200] Compiling C++ object lc0.p/src_neural_loader.cc.o
[45/200] Compiling C++ object lc0.p/src_neural_network_legacy.cc.o
[46/200] Compiling C++ object lc0.p/src_neural_xla_xla_tensor.cc.o
[47/200] Compiling C++ object lc0.p/src_neural_onnx_builder.cc.o
[48/200] Compiling C++ object lc0.p/src_neural_backends_blas_convolution1.cc.o
[49/200] Compiling C++ object lc0.p/src_neural_onnx_adapters.cc.o
[50/200] Compiling C++ object lc0.p/src_tools_describenet.cc.o
[51/200] Compiling C++ object lc0.p/src_neural_xla_hlo_builder.cc.o
[52/200] Compiling C++ object lc0.p/src_tools_onnx2leela.cc.o
[53/200] Compiling C++ object lc0.p/src_neural_onnx_converter.cc.o
[54/200] Compiling C++ object lc0.p/src_tools_leela2onnx.cc.o
[55/200] Compiling C++ object lc0.p/src_neural_xla_onnx2hlo.cc.o
[56/200] Generating cuda fp32 code with a custom command
[57/200] Generating cuda fp16 code with a custom command
ninja: build stopped: subcommand failed.
make: *** [Makefile:7: all] Error 1