[INFO] fetching crate vowpalwabbit-sys 8.8.1+vw-v8.8.0...
[INFO] checking vowpalwabbit-sys-8.8.1+vw-v8.8.0 against try#72f88fc4e9458f89516a0b8b0868f3718aec5b47 for pr-74989
[INFO] extracting crate vowpalwabbit-sys 8.8.1+vw-v8.8.0 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate vowpalwabbit-sys 8.8.1+vw-v8.8.0 on toolchain 72f88fc4e9458f89516a0b8b0868f3718aec5b47
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+72f88fc4e9458f89516a0b8b0868f3718aec5b47" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate vowpalwabbit-sys 8.8.1+vw-v8.8.0
[INFO] finished tweaking crates.io crate vowpalwabbit-sys 8.8.1+vw-v8.8.0
[INFO] tweaked toml for crates.io crate vowpalwabbit-sys 8.8.1+vw-v8.8.0 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+72f88fc4e9458f89516a0b8b0868f3718aec5b47" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+72f88fc4e9458f89516a0b8b0868f3718aec5b47" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+72f88fc4e9458f89516a0b8b0868f3718aec5b47" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2be86402612b5441114395bfd3ab374d85a6e2c4a34ce31a1d96d667663ffa93
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "2be86402612b5441114395bfd3ab374d85a6e2c4a34ce31a1d96d667663ffa93", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2be86402612b5441114395bfd3ab374d85a6e2c4a34ce31a1d96d667663ffa93", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2be86402612b5441114395bfd3ab374d85a6e2c4a34ce31a1d96d667663ffa93", kill_on_drop: false }`
[INFO] [stdout] 2be86402612b5441114395bfd3ab374d85a6e2c4a34ce31a1d96d667663ffa93
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+72f88fc4e9458f89516a0b8b0868f3718aec5b47" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 61766cc5fe6f1c0ac735771bc922d7a8dc6a8e3ff8f331f0ee363e28285473ef
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "61766cc5fe6f1c0ac735771bc922d7a8dc6a8e3ff8f331f0ee363e28285473ef", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling cc v1.0.59
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling unicode-width v0.1.8
[INFO] [stderr]    Compiling quick-error v1.2.3
[INFO] [stderr]    Compiling regex-syntax v0.6.18
[INFO] [stderr]    Compiling vec_map v0.8.2
[INFO] [stderr]    Compiling ansi_term v0.11.0
[INFO] [stderr]    Compiling strsim v0.8.0
[INFO] [stderr]    Compiling termcolor v1.1.0
[INFO] [stderr]    Compiling nom v4.2.3
[INFO] [stderr]    Compiling clang-sys v0.28.1
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling which v3.1.1
[INFO] [stderr]    Compiling proc-macro2 v1.0.21
[INFO] [stderr]    Compiling humantime v1.3.0
[INFO] [stderr]    Compiling thread_local v1.0.1
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling bindgen v0.52.0
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling aho-corasick v0.7.13
[INFO] [stderr]    Compiling cmake v0.1.44
[INFO] [stderr]    Compiling cexpr v0.3.6
[INFO] [stderr]    Compiling libloading v0.5.2
[INFO] [stderr]    Compiling regex v1.3.9
[INFO] [stderr]    Compiling env_logger v0.7.1
[INFO] [stderr]    Compiling vowpalwabbit-sys v8.8.1+vw-v8.8.0 (/opt/rustwide/workdir)
[INFO] [stderr] error: failed to run custom build command for `vowpalwabbit-sys v8.8.1+vw-v8.8.0 (/opt/rustwide/workdir)`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/vowpalwabbit-sys-04be51552836b55c/build-script-build` (exit code: 101)
[INFO] [stderr]   --- stdout
[INFO] [stderr]   running: "cmake" "/opt/rustwide/workdir/external/vowpal_wabbit" "-DSTATIC_LINK_VW_JAVA=On" "-DVW_INSTALL=Off" "-DBUILD_TESTS=Off" "-DGIT_SUBMODULE=Off" "-DCMAKE_ARCHIVE_OUTPUT_DIRECTORY=/opt/rustwide/target/debug/build/vowpalwabbit-sys-e647ff750bae4b47/out/lib" "-DCMAKE_LIBRARY_OUTPUT_DIRECTORY=/opt/rustwide/target/debug/build/vowpalwabbit-sys-e647ff750bae4b47/out/lib" "-DCMAKE_RUNTIME_OUTPUT_DIRECTORY=/opt/rustwide/target/debug/build/vowpalwabbit-sys-e647ff750bae4b47/out/bin" "-DCMAKE_INSTALL_PREFIX=/opt/rustwide/target/debug/build/vowpalwabbit-sys-e647ff750bae4b47/out" "-DCMAKE_C_FLAGS= -ffunction-sections -fdata-sections -fPIC -m64" "-DCMAKE_C_COMPILER=/usr/bin/cc" "-DCMAKE_CXX_FLAGS=  -ffunction-sections -fdata-sections -fPIC -m64" "-DCMAKE_CXX_COMPILER=/usr/bin/c++" "-DCMAKE_ASM_FLAGS= -ffunction-sections -fdata-sections -fPIC -m64" "-DCMAKE_ASM_COMPILER=/usr/bin/cc" "-DCMAKE_BUILD_TYPE=Debug"
[INFO] [stderr]   -- VowpalWabbit Version: 8.8.0
[INFO] [stderr]   -- The CXX compiler identification is GNU 9.3.0
[INFO] [stderr]   -- Check for working CXX compiler: /usr/bin/c++
[INFO] [stderr]   -- Check for working CXX compiler: /usr/bin/c++ -- works
[INFO] [stderr]   -- Detecting CXX compiler ABI info
[INFO] [stderr]   -- Detecting CXX compiler ABI info - done
[INFO] [stderr]   -- Detecting CXX compile features
[INFO] [stderr]   -- Detecting CXX compile features - done
[INFO] [stderr]   -- Number of processors: 16
[INFO] [stderr]   -- Looking for C++ include pthread.h
[INFO] [stderr]   -- Looking for C++ include pthread.h - found
[INFO] [stderr]   -- Performing Test CMAKE_HAVE_LIBC_PTHREAD
[INFO] [stderr]   -- Performing Test CMAKE_HAVE_LIBC_PTHREAD - Failed
[INFO] [stderr]   -- Check if compiler accepts -pthread
[INFO] [stderr]   -- Check if compiler accepts -pthread - yes
[INFO] [stderr]   -- Found Threads: TRUE  
[INFO] [stderr]   -- The C compiler identification is GNU 9.3.0
[INFO] [stderr]   -- Check for working C compiler: /usr/bin/cc
[INFO] [stderr]   -- Check for working C compiler: /usr/bin/cc -- works
[INFO] [stderr]   -- Detecting C compiler ABI info
[INFO] [stderr]   -- Detecting C compiler ABI info - done
[INFO] [stderr]   -- Detecting C compile features
[INFO] [stderr]   -- Detecting C compile features - done
[INFO] [stderr]   -- Looking for sys/types.h
[INFO] [stderr]   -- Looking for sys/types.h - found
[INFO] [stderr]   -- Looking for stdint.h
[INFO] [stderr]   -- Looking for stdint.h - found
[INFO] [stderr]   -- Looking for stddef.h
[INFO] [stderr]   -- Looking for stddef.h - found
[INFO] [stderr]   -- Check size of off64_t
[INFO] [stderr]   -- Check size of off64_t - done
[INFO] [stderr]   -- Looking for fseeko
[INFO] [stderr]   -- Looking for fseeko - found
[INFO] [stderr]   -- Looking for unistd.h
[INFO] [stderr]   -- Looking for unistd.h - found
[INFO] [stderr]   -- Boost format: modularized
[INFO] [stderr]   -- Boost found: 1.69.0 /opt/rustwide/workdir/external/vowpal_wabbit/external/boost
[INFO] [stderr]   -- Looking for __linux__
[INFO] [stderr]   -- Looking for __linux__ - found
[INFO] [stderr]   -- Looking for _WIN32
[INFO] [stderr]   -- Looking for _WIN32 - not found
[INFO] [stderr]   -- Looking for __APPLE__
[INFO] [stderr]   -- Looking for __APPLE__ - not found
[INFO] [stderr]   -- Looking for __ANDROID__
[INFO] [stderr]   -- Looking for __ANDROID__ - not found
[INFO] [stderr]   -- Looking for __FreeBSD__
[INFO] [stderr]   -- Looking for __FreeBSD__ - not found
[INFO] [stderr]   -- help2man not found, please install it to generate manpages
[INFO] [stderr]   -- Configuring done
[INFO] [stderr]   -- Generating done
[INFO] [stderr]   -- Build files have been written to: /opt/rustwide/target/debug/build/vowpalwabbit-sys-e647ff750bae4b47/out/build
[INFO] [stderr]   running: "cmake" "--build" "." "--target" "vw_c_wrapper" "--config" "Debug" "--"
[INFO] [stderr]   Scanning dependencies of target allreduce
[INFO] [stderr]   Scanning dependencies of target zlib
[INFO] [stderr]   [  0%] Building CXX object vowpalwabbit/CMakeFiles/allreduce.dir/allreduce_threads.cc.o
[INFO] [stderr]   [  3%] Building CXX object vowpalwabbit/CMakeFiles/allreduce.dir/allreduce_sockets.cc.o
[INFO] [stderr]   [  3%] Building CXX object vowpalwabbit/CMakeFiles/allreduce.dir/vw_exception.cc.o
[INFO] [stderr]   [  3%] Building C object external/zlib/CMakeFiles/zlib.dir/adler32.o
[INFO] [stderr]   [  5%] Building C object external/zlib/CMakeFiles/zlib.dir/compress.o
[INFO] [stderr]   [  5%] Building C object external/zlib/CMakeFiles/zlib.dir/crc32.o
[INFO] [stderr]   [  7%] Building C object external/zlib/CMakeFiles/zlib.dir/gzread.o
[INFO] [stderr]   [  7%] Building C object external/zlib/CMakeFiles/zlib.dir/gzlib.o
[INFO] [stderr]   [  9%] Building C object external/zlib/CMakeFiles/zlib.dir/deflate.o
[INFO] [stderr]   [  9%] Building C object external/zlib/CMakeFiles/zlib.dir/gzclose.o
[INFO] [stderr]   [  9%] Building C object external/zlib/CMakeFiles/zlib.dir/gzwrite.o
[INFO] [stderr]   [ 11%] Building C object external/zlib/CMakeFiles/zlib.dir/infback.o
[INFO] [stderr]   [ 11%] Building C object external/zlib/CMakeFiles/zlib.dir/inflate.o
[INFO] [stderr]   [ 13%] Building C object external/zlib/CMakeFiles/zlib.dir/inffast.o
[INFO] [stderr]   [ 13%] Building C object external/zlib/CMakeFiles/zlib.dir/inftrees.o
[INFO] [stderr]   [ 13%] Building C object external/zlib/CMakeFiles/zlib.dir/trees.o
[INFO] [stderr]   [ 13%] Building C object external/zlib/CMakeFiles/zlib.dir/uncompr.o
[INFO] [stderr]   [ 15%] Building C object external/zlib/CMakeFiles/zlib.dir/zutil.o
[INFO] [stderr]   [ 15%] Linking C shared library /opt/rustwide/target/debug/build/vowpalwabbit-sys-e647ff750bae4b47/out/lib/libz.so
[INFO] [stderr]   Scanning dependencies of target Boost_program_options
[INFO] [stderr]   [ 15%] Built target zlib
[INFO] [stderr]   [ 17%] Building CXX object external/boost-cmake/CMakeFiles/Boost_program_options.dir/__/boost/libs/program_options/src/config_file.cpp.o
[INFO] [stderr]   [ 17%] Building CXX object external/boost-cmake/CMakeFiles/Boost_program_options.dir/__/boost/libs/program_options/src/cmdline.cpp.o
[INFO] [stderr]   [ 17%] Building CXX object external/boost-cmake/CMakeFiles/Boost_program_options.dir/__/boost/libs/program_options/src/options_description.cpp.o
[INFO] [stderr]   [ 19%] Building CXX object external/boost-cmake/CMakeFiles/Boost_program_options.dir/__/boost/libs/program_options/src/parsers.cpp.o
[INFO] [stderr]   [ 19%] Building CXX object external/boost-cmake/CMakeFiles/Boost_program_options.dir/__/boost/libs/program_options/src/variables_map.cpp.o
[INFO] [stderr]   [ 21%] Building CXX object external/boost-cmake/CMakeFiles/Boost_program_options.dir/__/boost/libs/program_options/src/positional_options.cpp.o
[INFO] [stderr]   [ 21%] Building CXX object external/boost-cmake/CMakeFiles/Boost_program_options.dir/__/boost/libs/program_options/src/value_semantic.cpp.o
[INFO] [stderr]   [ 21%] Building CXX object external/boost-cmake/CMakeFiles/Boost_program_options.dir/__/boost/libs/program_options/src/utf8_codecvt_facet.cpp.o
[INFO] [stderr]   [ 23%] Building CXX object external/boost-cmake/CMakeFiles/Boost_program_options.dir/__/boost/libs/program_options/src/convert.cpp.o
[INFO] [stderr]   [ 23%] Building CXX object external/boost-cmake/CMakeFiles/Boost_program_options.dir/__/boost/libs/program_options/src/winmain.cpp.o
[INFO] [stderr]   [ 23%] Building CXX object external/boost-cmake/CMakeFiles/Boost_program_options.dir/__/boost/libs/program_options/src/split.cpp.o
[INFO] [stderr]   [ 23%] Linking CXX static library /opt/rustwide/target/debug/build/vowpalwabbit-sys-e647ff750bae4b47/out/lib/liballreduce.a
[INFO] [stderr]   [ 23%] Built target allreduce
[INFO] [stderr]   [ 25%] Linking CXX static library /opt/rustwide/target/debug/build/vowpalwabbit-sys-e647ff750bae4b47/out/lib/libboost_program_options.a
[INFO] [stderr]   [ 25%] Built target Boost_program_options
[INFO] [stderr]   Scanning dependencies of target vw
[INFO] [stderr]   [ 27%] Building CXX object vowpalwabbit/CMakeFiles/vw.dir/accumulate.cc.o
[INFO] [stderr]   [ 27%] Building CXX object vowpalwabbit/CMakeFiles/vw.dir/action_score.cc.o
[INFO] [stderr]   [ 27%] Building CXX object vowpalwabbit/CMakeFiles/vw.dir/active_cover.cc.o
[INFO] [stderr]   [ 27%] Building CXX object vowpalwabbit/CMakeFiles/vw.dir/active.cc.o
[INFO] [stderr]   [ 29%] Building CXX object vowpalwabbit/CMakeFiles/vw.dir/audit_regressor.cc.o
[INFO] [stderr]   [ 29%] Building CXX object vowpalwabbit/CMakeFiles/vw.dir/autolink.cc.o
[INFO] [stderr]   [ 29%] Building CXX object vowpalwabbit/CMakeFiles/vw.dir/baseline.cc.o
[INFO] [stderr]   [ 31%] Building CXX object vowpalwabbit/CMakeFiles/vw.dir/best_constant.cc.o
[INFO] [stderr]   [ 31%] Building CXX object vowpalwabbit/CMakeFiles/vw.dir/bfgs.cc.o
[INFO] [stderr]   [ 33%] Building CXX object vowpalwabbit/CMakeFiles/vw.dir/binary.cc.o
[INFO] [stderr]   [ 33%] Building CXX object vowpalwabbit/CMakeFiles/vw.dir/boosting.cc.o
[INFO] [stderr]   [ 33%] Building CXX object vowpalwabbit/CMakeFiles/vw.dir/bs.cc.o
[INFO] [stderr]   [ 35%] Building CXX object vowpalwabbit/CMakeFiles/vw.dir/cache.cc.o
[INFO] [stderr]   [ 35%] Building CXX object vowpalwabbit/CMakeFiles/vw.dir/cb_adf.cc.o
[INFO] [stderr]   [ 37%] Building CXX object vowpalwabbit/CMakeFiles/vw.dir/cb_algs.cc.o
[INFO] [stderr]   [ 37%] Building CXX object vowpalwabbit/CMakeFiles/vw.dir/cb_explore_adf_bag.cc.o
[INFO] [stderr]   [ 37%] Building CXX object vowpalwabbit/CMakeFiles/vw.dir/cb_explore_adf_cover.cc.o
[INFO] [stderr]   [ 39%] Building CXX object vowpalwabbit/CMakeFiles/vw.dir/cb_explore_adf_first.cc.o
[INFO] [stderr] 
[INFO] [stderr]   --- stderr
[INFO] [stderr]   CMake Warning (dev) at external/zlib/CMakeLists.txt:4 (project):
[INFO] [stderr]     Policy CMP0048 is not set: project() command manages VERSION variables.
[INFO] [stderr]     Run "cmake --help-policy CMP0048" for policy details.  Use the cmake_policy
[INFO] [stderr]     command to set the policy and suppress this warning.
[INFO] [stderr] 
[INFO] [stderr]     The following variable(s) would be set to empty:
[INFO] [stderr] 
[INFO] [stderr]       PROJECT_VERSION
[INFO] [stderr]       PROJECT_VERSION_MAJOR
[INFO] [stderr]       PROJECT_VERSION_MINOR
[INFO] [stderr]       PROJECT_VERSION_PATCH
[INFO] [stderr]   This warning is for project developers.  Use -Wno-dev to suppress it.
[INFO] [stderr] 
[INFO] [stderr]   CMake Warning:
[INFO] [stderr]     Manually-specified variables were not used by the project:
[INFO] [stderr] 
[INFO] [stderr]       CMAKE_ASM_COMPILER
[INFO] [stderr]       CMAKE_ASM_FLAGS
[INFO] [stderr]       GIT_SUBMODULE
[INFO] [stderr] 
[INFO] [stderr] 
[INFO] [stderr]   In file included from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/cache.h:7,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/cache.cc:6:
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/v_array.h: In instantiation of 'void v_array<T>::resize(size_t) [with T = std::shared_ptr<std::pair<std::__cxx11::basic_string<char>, std::__cxx11::basic_string<char> > >; size_t = long unsigned int]':
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/v_array.h:92:7:   required from 'void v_array<T>::clear() [with T = std::shared_ptr<std::pair<std::__cxx11::basic_string<char>, std::__cxx11::basic_string<char> > >]'
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/feature_group.h:301:23:   required from here
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/v_array.h:74:28: warning: 'void* realloc(void*, size_t)' moving an object of non-trivially copyable type 'class std::shared_ptr<std::pair<std::__cxx11::basic_string<char>, std::__cxx11::basic_string<char> > >'; use 'new' and 'delete' instead [-Wclass-memaccess]
[INFO] [stderr]      74 |       T* temp = (T*)realloc(_begin, sizeof(T) * length);
[INFO] [stderr]         |                     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr]   In file included from /usr/include/c++/9/memory:81,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/memory.h:5,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/v_array.h:26,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/cache.h:7,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/cache.cc:6:
[INFO] [stderr]   /usr/include/c++/9/bits/shared_ptr.h:103:11: note: 'class std::shared_ptr<std::pair<std::__cxx11::basic_string<char>, std::__cxx11::basic_string<char> > >' declared here
[INFO] [stderr]     103 |     class shared_ptr : public __shared_ptr<_Tp>
[INFO] [stderr]         |           ^~~~~~~~~~
[INFO] [stderr]   In file included from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/cache.h:7,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/cache.cc:6:
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/v_array.h:82:15: warning: 'void* memset(void*, int, size_t)' clearing an object of type 'class std::shared_ptr<std::pair<std::__cxx11::basic_string<char>, std::__cxx11::basic_string<char> > >' with no trivial copy-assignment; use assignment or value-initialization instead [-Wclass-memaccess]
[INFO] [stderr]      82 |         memset(_begin + old_len, 0, (length - old_len) * sizeof(T));
[INFO] [stderr]         |         ~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr]   In file included from /usr/include/c++/9/memory:81,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/memory.h:5,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/v_array.h:26,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/cache.h:7,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/cache.cc:6:
[INFO] [stderr]   /usr/include/c++/9/bits/shared_ptr.h:103:11: note: 'class std::shared_ptr<std::pair<std::__cxx11::basic_string<char>, std::__cxx11::basic_string<char> > >' declared here
[INFO] [stderr]     103 |     class shared_ptr : public __shared_ptr<_Tp>
[INFO] [stderr]         |           ^~~~~~~~~~
[INFO] [stderr]   In file included from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/cache.h:7,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/cache.cc:6:
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/v_array.h: In instantiation of 'void v_array<T>::resize(size_t) [with T = feature_slice; size_t = long unsigned int]':
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/v_array.h:110:7:   required from 'void v_array<T>::push_back(const T&) [with T = feature_slice]'
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/feature_group.h:354:29:   required from here
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/v_array.h:74:28: warning: 'void* realloc(void*, size_t)' moving an object of non-trivially copyable type 'struct feature_slice'; use 'new' and 'delete' instead [-Wclass-memaccess]
[INFO] [stderr]      74 |       T* temp = (T*)realloc(_begin, sizeof(T) * length);
[INFO] [stderr]         |                     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr]   In file included from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/example.h:18,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/cache.h:9,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/cache.cc:6:
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/feature_group.h:33:8: note: 'struct feature_slice' declared here
[INFO] [stderr]      33 | struct feature_slice  // a helper struct for functions using the set {v,i,space_name}
[INFO] [stderr]         |        ^~~~~~~~~~~~~
[INFO] [stderr]   In file included from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/cache.h:7,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/cache.cc:6:
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/v_array.h:82:15: warning: 'void* memset(void*, int, size_t)' clearing an object of type 'struct feature_slice' with no trivial copy-assignment; use assignment or value-initialization instead [-Wclass-memaccess]
[INFO] [stderr]      82 |         memset(_begin + old_len, 0, (length - old_len) * sizeof(T));
[INFO] [stderr]         |         ~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr]   In file included from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/example.h:18,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/cache.h:9,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/cache.cc:6:
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/feature_group.h:33:8: note: 'struct feature_slice' declared here
[INFO] [stderr]      33 | struct feature_slice  // a helper struct for functions using the set {v,i,space_name}
[INFO] [stderr]         |        ^~~~~~~~~~~~~
[INFO] [stderr]   In file included from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/cache.h:7,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/cache.cc:6:
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/v_array.h: In instantiation of 'void v_array<T>::resize(size_t) [with T = feature; size_t = long unsigned int]':
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/v_array.h:110:7:   required from 'void v_array<T>::push_back(const T&) [with T = feature]'
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/feature_group.h:371:29:   required from here
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/v_array.h:82:15: warning: 'void* memset(void*, int, size_t)' clearing an object of non-trivial type 'struct feature'; use assignment or value-initialization instead [-Wclass-memaccess]
[INFO] [stderr]      82 |         memset(_begin + old_len, 0, (length - old_len) * sizeof(T));
[INFO] [stderr]         |         ~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr]   In file included from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/example.h:18,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/cache.h:9,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/cache.cc:6:
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/feature_group.h:25:8: note: 'struct feature' declared here
[INFO] [stderr]      25 | struct feature  // sparse feature definition for the library interface
[INFO] [stderr]         |        ^~~~~~~
[INFO] [stderr]   In file included from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/action_score.cc:1:
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/v_array.h: In instantiation of 'void v_array<T>::resize(size_t) [with T = std::shared_ptr<std::pair<std::__cxx11::basic_string<char>, std::__cxx11::basic_string<char> > >; size_t = long unsigned int]':
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/v_array.h:92:7:   required from 'void v_array<T>::clear() [with T = std::shared_ptr<std::pair<std::__cxx11::basic_string<char>, std::__cxx11::basic_string<char> > >]'
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/feature_group.h:301:23:   required from here
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/v_array.h:74:28: warning: 'void* realloc(void*, size_t)' moving an object of non-trivially copyable type 'class std::shared_ptr<std::pair<std::__cxx11::basic_string<char>, std::__cxx11::basic_string<char> > >'; use 'new' and 'delete' instead [-Wclass-memaccess]
[INFO] [stderr]      74 |       T* temp = (T*)realloc(_begin, sizeof(T) * length);
[INFO] [stderr]         |                     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr]   In file included from /usr/include/c++/9/memory:81,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/memory.h:5,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/v_array.h:26,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/action_score.cc:1:
[INFO] [stderr]   /usr/include/c++/9/bits/shared_ptr.h:103:11: note: 'class std::shared_ptr<std::pair<std::__cxx11::basic_string<char>, std::__cxx11::basic_string<char> > >' declared here
[INFO] [stderr]     103 |     class shared_ptr : public __shared_ptr<_Tp>
[INFO] [stderr]         |           ^~~~~~~~~~
[INFO] [stderr]   In file included from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/action_score.cc:1:
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/v_array.h:82:15: warning: 'void* memset(void*, int, size_t)' clearing an object of type 'class std::shared_ptr<std::pair<std::__cxx11::basic_string<char>, std::__cxx11::basic_string<char> > >' with no trivial copy-assignment; use assignment or value-initialization instead [-Wclass-memaccess]
[INFO] [stderr]      82 |         memset(_begin + old_len, 0, (length - old_len) * sizeof(T));
[INFO] [stderr]         |         ~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr]   In file included from /usr/include/c++/9/memory:81,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/memory.h:5,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/v_array.h:26,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/action_score.cc:1:
[INFO] [stderr]   /usr/include/c++/9/bits/shared_ptr.h:103:11: note: 'class std::shared_ptr<std::pair<std::__cxx11::basic_string<char>, std::__cxx11::basic_string<char> > >' declared here
[INFO] [stderr]     103 |     class shared_ptr : public __shared_ptr<_Tp>
[INFO] [stderr]         |           ^~~~~~~~~~
[INFO] [stderr]   In file included from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/action_score.cc:1:
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/v_array.h: In instantiation of 'void v_array<T>::resize(size_t) [with T = feature_slice; size_t = long unsigned int]':
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/v_array.h:110:7:   required from 'void v_array<T>::push_back(const T&) [with T = feature_slice]'
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/feature_group.h:354:29:   required from here
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/v_array.h:74:28: warning: 'void* realloc(void*, size_t)' moving an object of non-trivially copyable type 'struct feature_slice'; use 'new' and 'delete' instead [-Wclass-memaccess]
[INFO] [stderr]      74 |       T* temp = (T*)realloc(_begin, sizeof(T) * length);
[INFO] [stderr]         |                     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr]   In file included from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/example.h:18,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/global_data.h:36,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/action_score.cc:4:
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/feature_group.h:33:8: note: 'struct feature_slice' declared here
[INFO] [stderr]      33 | struct feature_slice  // a helper struct for functions using the set {v,i,space_name}
[INFO] [stderr]         |        ^~~~~~~~~~~~~
[INFO] [stderr]   In file included from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/action_score.cc:1:
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/v_array.h:82:15: warning: 'void* memset(void*, int, size_t)' clearing an object of type 'struct feature_slice' with no trivial copy-assignment; use assignment or value-initialization instead [-Wclass-memaccess]
[INFO] [stderr]      82 |         memset(_begin + old_len, 0, (length - old_len) * sizeof(T));
[INFO] [stderr]         |         ~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr]   In file included from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/example.h:18,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/global_data.h:36,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/action_score.cc:4:
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/feature_group.h:33:8: note: 'struct feature_slice' declared here
[INFO] [stderr]      33 | struct feature_slice  // a helper struct for functions using the set {v,i,space_name}
[INFO] [stderr]         |        ^~~~~~~~~~~~~
[INFO] [stderr]   In file included from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/action_score.cc:1:
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/v_array.h: In instantiation of 'void v_array<T>::resize(size_t) [with T = feature; size_t = long unsigned int]':
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/v_array.h:110:7:   required from 'void v_array<T>::push_back(const T&) [with T = feature]'
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/feature_group.h:371:29:   required from here
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/v_array.h:82:15: warning: 'void* memset(void*, int, size_t)' clearing an object of non-trivial type 'struct feature'; use assignment or value-initialization instead [-Wclass-memaccess]
[INFO] [stderr]      82 |         memset(_begin + old_len, 0, (length - old_len) * sizeof(T));
[INFO] [stderr]         |         ~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr]   In file included from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/example.h:18,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/global_data.h:36,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/action_score.cc:4:
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/feature_group.h:25:8: note: 'struct feature' declared here
[INFO] [stderr]      25 | struct feature  // sparse feature definition for the library interface
[INFO] [stderr]         |        ^~~~~~~
[INFO] [stderr]   In file included from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/parser.h:28,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/unique_sort.h:7,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/cache.cc:7:
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/object_pool.h: In instantiation of 'void VW::no_lock_object_pool<T, TInitializer, TCleanup>::new_chunk(size_t) [with T = example; TInitializer = example_initializer; TCleanup = VW::default_cleanup<example>; size_t = long unsigned int]':
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/object_pool.h:36:5:   required from 'VW::no_lock_object_pool<T, TInitializer, TCleanup>::no_lock_object_pool(size_t, TInitializer, size_t) [with T = example; TInitializer = example_initializer; TCleanup = VW::default_cleanup<example>; size_t = long unsigned int]'
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/object_pool.h:170:63:   required from 'VW::object_pool<T, TInitializer, TCleanup>::object_pool(size_t, TInitializer, size_t) [with T = example; TInitializer = example_initializer; TCleanup = VW::default_cleanup<example>; size_t = long unsigned int]'
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/parser.h:41:116:   required from here
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/object_pool.h:111:13: warning: 'void* memset(void*, int, size_t)' clearing an object of non-trivial type 'struct example'; use assignment or value-initialization instead [-Wclass-memaccess]
[INFO] [stderr]     111 |       memset(&chunk[i], 0, sizeof(T));
[INFO] [stderr]         |       ~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr]   In file included from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/cache.h:9,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/cache.cc:6:
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/example.h:54:8: note: 'struct example' declared here
[INFO] [stderr]      54 | struct example : public example_predict  // core example datatype.
[INFO] [stderr]         |        ^~~~~~~
[INFO] [stderr]   In file included from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/parser.h:28,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/learner.h:12,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/global_data.h:38,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/action_score.cc:4:
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/object_pool.h: In instantiation of 'void VW::no_lock_object_pool<T, TInitializer, TCleanup>::new_chunk(size_t) [with T = example; TInitializer = example_initializer; TCleanup = VW::default_cleanup<example>; size_t = long unsigned int]':
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/object_pool.h:36:5:   required from 'VW::no_lock_object_pool<T, TInitializer, TCleanup>::no_lock_object_pool(size_t, TInitializer, size_t) [with T = example; TInitializer = example_initializer; TCleanup = VW::default_cleanup<example>; size_t = long unsigned int]'
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/object_pool.h:170:63:   required from 'VW::object_pool<T, TInitializer, TCleanup>::object_pool(size_t, TInitializer, size_t) [with T = example; TInitializer = example_initializer; TCleanup = VW::default_cleanup<example>; size_t = long unsigned int]'
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/parser.h:41:116:   required from here
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/object_pool.h:111:13: warning: 'void* memset(void*, int, size_t)' clearing an object of non-trivial type 'struct example'; use assignment or value-initialization instead [-Wclass-memaccess]
[INFO] [stderr]     111 |       memset(&chunk[i], 0, sizeof(T));
[INFO] [stderr]         |       ~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr]   In file included from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/global_data.h:36,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/action_score.cc:4:
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/example.h:54:8: note: 'struct example' declared here
[INFO] [stderr]      54 | struct example : public example_predict  // core example datatype.
[INFO] [stderr]         |        ^~~~~~~
[INFO] [stderr]   In file included from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/global_data.h:31,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/vw.h:15,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/best_constant.h:3,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/best_constant.cc:1:
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/v_array.h: In instantiation of 'void v_array<T>::resize(size_t) [with T = std::shared_ptr<std::pair<std::__cxx11::basic_string<char>, std::__cxx11::basic_string<char> > >; size_t = long unsigned int]':
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/v_array.h:92:7:   required from 'void v_array<T>::clear() [with T = std::shared_ptr<std::pair<std::__cxx11::basic_string<char>, std::__cxx11::basic_string<char> > >]'
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/feature_group.h:301:23:   required from here
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/v_array.h:74:28: warning: 'void* realloc(void*, size_t)' moving an object of non-trivially copyable type 'class std::shared_ptr<std::pair<std::__cxx11::basic_string<char>, std::__cxx11::basic_string<char> > >'; use 'new' and 'delete' instead [-Wclass-memaccess]
[INFO] [stderr]      74 |       T* temp = (T*)realloc(_begin, sizeof(T) * length);
[INFO] [stderr]         |                     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr]   In file included from /usr/include/c++/9/memory:81,
[INFO] [stderr]                    from /usr/include/c++/9/thread:39,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/global_data.h:28,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/vw.h:15,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/best_constant.h:3,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/best_constant.cc:1:
[INFO] [stderr]   /usr/include/c++/9/bits/shared_ptr.h:103:11: note: 'class std::shared_ptr<std::pair<std::__cxx11::basic_string<char>, std::__cxx11::basic_string<char> > >' declared here
[INFO] [stderr]     103 |     class shared_ptr : public __shared_ptr<_Tp>
[INFO] [stderr]         |           ^~~~~~~~~~
[INFO] [stderr]   In file included from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/global_data.h:31,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/vw.h:15,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/best_constant.h:3,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/best_constant.cc:1:
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/v_array.h:82:15: warning: 'void* memset(void*, int, size_t)' clearing an object of type 'class std::shared_ptr<std::pair<std::__cxx11::basic_string<char>, std::__cxx11::basic_string<char> > >' with no trivial copy-assignment; use assignment or value-initialization instead [-Wclass-memaccess]
[INFO] [stderr]      82 |         memset(_begin + old_len, 0, (length - old_len) * sizeof(T));
[INFO] [stderr]         |         ~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr]   In file included from /usr/include/c++/9/memory:81,
[INFO] [stderr]                    from /usr/include/c++/9/thread:39,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/global_data.h:28,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/vw.h:15,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/best_constant.h:3,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/best_constant.cc:1:
[INFO] [stderr]   /usr/include/c++/9/bits/shared_ptr.h:103:11: note: 'class std::shared_ptr<std::pair<std::__cxx11::basic_string<char>, std::__cxx11::basic_string<char> > >' declared here
[INFO] [stderr]     103 |     class shared_ptr : public __shared_ptr<_Tp>
[INFO] [stderr]         |           ^~~~~~~~~~
[INFO] [stderr]   In file included from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/global_data.h:31,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/vw.h:15,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/best_constant.h:3,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/best_constant.cc:1:
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/v_array.h: In instantiation of 'void v_array<T>::resize(size_t) [with T = feature_slice; size_t = long unsigned int]':
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/v_array.h:110:7:   required from 'void v_array<T>::push_back(const T&) [with T = feature_slice]'
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/feature_group.h:354:29:   required from here
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/v_array.h:74:28: warning: 'void* realloc(void*, size_t)' moving an object of non-trivially copyable type 'struct feature_slice'; use 'new' and 'delete' instead [-Wclass-memaccess]
[INFO] [stderr]      74 |       T* temp = (T*)realloc(_begin, sizeof(T) * length);
[INFO] [stderr]         |                     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr]   In file included from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/example.h:18,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/global_data.h:36,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/vw.h:15,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/best_constant.h:3,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/best_constant.cc:1:
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/feature_group.h:33:8: note: 'struct feature_slice' declared here
[INFO] [stderr]      33 | struct feature_slice  // a helper struct for functions using the set {v,i,space_name}
[INFO] [stderr]         |        ^~~~~~~~~~~~~
[INFO] [stderr]   In file included from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/global_data.h:31,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/vw.h:15,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/best_constant.h:3,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/best_constant.cc:1:
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/v_array.h:82:15: warning: 'void* memset(void*, int, size_t)' clearing an object of type 'struct feature_slice' with no trivial copy-assignment; use assignment or value-initialization instead [-Wclass-memaccess]
[INFO] [stderr]      82 |         memset(_begin + old_len, 0, (length - old_len) * sizeof(T));
[INFO] [stderr]         |         ~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr]   In file included from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/example.h:18,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/global_data.h:36,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/vw.h:15,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/best_constant.h:3,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/best_constant.cc:1:
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/feature_group.h:33:8: note: 'struct feature_slice' declared here
[INFO] [stderr]      33 | struct feature_slice  // a helper struct for functions using the set {v,i,space_name}
[INFO] [stderr]         |        ^~~~~~~~~~~~~
[INFO] [stderr]   In file included from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/global_data.h:31,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/vw.h:15,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/best_constant.h:3,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/best_constant.cc:1:
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/v_array.h: In instantiation of 'void v_array<T>::resize(size_t) [with T = feature; size_t = long unsigned int]':
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/v_array.h:110:7:   required from 'void v_array<T>::push_back(const T&) [with T = feature]'
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/feature_group.h:371:29:   required from here
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/v_array.h:82:15: warning: 'void* memset(void*, int, size_t)' clearing an object of non-trivial type 'struct feature'; use assignment or value-initialization instead [-Wclass-memaccess]
[INFO] [stderr]      82 |         memset(_begin + old_len, 0, (length - old_len) * sizeof(T));
[INFO] [stderr]         |         ~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr]   In file included from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/example.h:18,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/global_data.h:36,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/vw.h:15,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/best_constant.h:3,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/best_constant.cc:1:
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/feature_group.h:25:8: note: 'struct feature' declared here
[INFO] [stderr]      25 | struct feature  // sparse feature definition for the library interface
[INFO] [stderr]         |        ^~~~~~~
[INFO] [stderr]   In file included from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/parser.h:28,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/learner.h:12,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/global_data.h:38,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/vw.h:15,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/best_constant.h:3,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/best_constant.cc:1:
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/object_pool.h: In instantiation of 'void VW::no_lock_object_pool<T, TInitializer, TCleanup>::new_chunk(size_t) [with T = example; TInitializer = example_initializer; TCleanup = VW::default_cleanup<example>; size_t = long unsigned int]':
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/object_pool.h:36:5:   required from 'VW::no_lock_object_pool<T, TInitializer, TCleanup>::no_lock_object_pool(size_t, TInitializer, size_t) [with T = example; TInitializer = example_initializer; TCleanup = VW::default_cleanup<example>; size_t = long unsigned int]'
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/object_pool.h:170:63:   required from 'VW::object_pool<T, TInitializer, TCleanup>::object_pool(size_t, TInitializer, size_t) [with T = example; TInitializer = example_initializer; TCleanup = VW::default_cleanup<example>; size_t = long unsigned int]'
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/parser.h:41:116:   required from here
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/object_pool.h:111:13: warning: 'void* memset(void*, int, size_t)' clearing an object of non-trivial type 'struct example'; use assignment or value-initialization instead [-Wclass-memaccess]
[INFO] [stderr]     111 |       memset(&chunk[i], 0, sizeof(T));
[INFO] [stderr]         |       ~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr]   In file included from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/global_data.h:36,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/vw.h:15,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/best_constant.h:3,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/best_constant.cc:1:
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/example.h:54:8: note: 'struct example' declared here
[INFO] [stderr]      54 | struct example : public example_predict  // core example datatype.
[INFO] [stderr]         |        ^~~~~~~
[INFO] [stderr]   In file included from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/label_parser.h:3,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/multiclass.h:7,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/learner.h:10,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/autolink.cc:3:
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/v_array.h: In instantiation of 'void v_array<T>::resize(size_t) [with T = std::shared_ptr<std::pair<std::__cxx11::basic_string<char>, std::__cxx11::basic_string<char> > >; size_t = long unsigned int]':
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/v_array.h:92:7:   required from 'void v_array<T>::clear() [with T = std::shared_ptr<std::pair<std::__cxx11::basic_string<char>, std::__cxx11::basic_string<char> > >]'
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/feature_group.h:301:23:   required from here
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/v_array.h:74:28: warning: 'void* realloc(void*, size_t)' moving an object of non-trivially copyable type 'class std::shared_ptr<std::pair<std::__cxx11::basic_string<char>, std::__cxx11::basic_string<char> > >'; use 'new' and 'delete' instead [-Wclass-memaccess]
[INFO] [stderr]      74 |       T* temp = (T*)realloc(_begin, sizeof(T) * length);
[INFO] [stderr]         |                     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr]   In file included from /usr/include/c++/9/memory:81,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/memory.h:5,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/learner.h:9,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/autolink.cc:3:
[INFO] [stderr]   /usr/include/c++/9/bits/shared_ptr.h:103:11: note: 'class std::shared_ptr<std::pair<std::__cxx11::basic_string<char>, std::__cxx11::basic_string<char> > >' declared here
[INFO] [stderr]     103 |     class shared_ptr : public __shared_ptr<_Tp>
[INFO] [stderr]         |           ^~~~~~~~~~
[INFO] [stderr]   In file included from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/label_parser.h:3,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/multiclass.h:7,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/learner.h:10,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/autolink.cc:3:
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/v_array.h:82:15: warning: 'void* memset(void*, int, size_t)' clearing an object of type 'class std::shared_ptr<std::pair<std::__cxx11::basic_string<char>, std::__cxx11::basic_string<char> > >' with no trivial copy-assignment; use assignment or value-initialization instead [-Wclass-memaccess]
[INFO] [stderr]      82 |         memset(_begin + old_len, 0, (length - old_len) * sizeof(T));
[INFO] [stderr]         |         ~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr]   In file included from /usr/include/c++/9/memory:81,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/memory.h:5,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/learner.h:9,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/autolink.cc:3:
[INFO] [stderr]   /usr/include/c++/9/bits/shared_ptr.h:103:11: note: 'class std::shared_ptr<std::pair<std::__cxx11::basic_string<char>, std::__cxx11::basic_string<char> > >' declared here
[INFO] [stderr]     103 |     class shared_ptr : public __shared_ptr<_Tp>
[INFO] [stderr]         |           ^~~~~~~~~~
[INFO] [stderr]   In file included from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/label_parser.h:3,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/multiclass.h:7,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/learner.h:10,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/autolink.cc:3:
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/v_array.h: In instantiation of 'void v_array<T>::resize(size_t) [with T = feature_slice; size_t = long unsigned int]':
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/v_array.h:110:7:   required from 'void v_array<T>::push_back(const T&) [with T = feature_slice]'
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/feature_group.h:354:29:   required from here
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/v_array.h:74:28: warning: 'void* realloc(void*, size_t)' moving an object of non-trivially copyable type 'struct feature_slice'; use 'new' and 'delete' instead [-Wclass-memaccess]
[INFO] [stderr]      74 |       T* temp = (T*)realloc(_begin, sizeof(T) * length);
[INFO] [stderr]         |                     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr]   In file included from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/example.h:18,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/parser.h:9,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/learner.h:12,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/autolink.cc:3:
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/feature_group.h:33:8: note: 'struct feature_slice' declared here
[INFO] [stderr]      33 | struct feature_slice  // a helper struct for functions using the set {v,i,space_name}
[INFO] [stderr]         |        ^~~~~~~~~~~~~
[INFO] [stderr]   In file included from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/label_parser.h:3,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/multiclass.h:7,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/learner.h:10,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/autolink.cc:3:
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/v_array.h:82:15: warning: 'void* memset(void*, int, size_t)' clearing an object of type 'struct feature_slice' with no trivial copy-assignment; use assignment or value-initialization instead [-Wclass-memaccess]
[INFO] [stderr]      82 |         memset(_begin + old_len, 0, (length - old_len) * sizeof(T));
[INFO] [stderr]         |         ~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr]   In file included from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/example.h:18,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/parser.h:9,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/learner.h:12,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/autolink.cc:3:
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/feature_group.h:33:8: note: 'struct feature_slice' declared here
[INFO] [stderr]      33 | struct feature_slice  // a helper struct for functions using the set {v,i,space_name}
[INFO] [stderr]         |        ^~~~~~~~~~~~~
[INFO] [stderr]   In file included from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/label_parser.h:3,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/multiclass.h:7,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/learner.h:10,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/autolink.cc:3:
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/v_array.h: In instantiation of 'void v_array<T>::resize(size_t) [with T = feature; size_t = long unsigned int]':
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/v_array.h:110:7:   required from 'void v_array<T>::push_back(const T&) [with T = feature]'
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/feature_group.h:371:29:   required from here
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/v_array.h:82:15: warning: 'void* memset(void*, int, size_t)' clearing an object of non-trivial type 'struct feature'; use assignment or value-initialization instead [-Wclass-memaccess]
[INFO] [stderr]      82 |         memset(_begin + old_len, 0, (length - old_len) * sizeof(T));
[INFO] [stderr]         |         ~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr]   In file included from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/example.h:18,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/parser.h:9,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/learner.h:12,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/autolink.cc:3:
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/feature_group.h:25:8: note: 'struct feature' declared here
[INFO] [stderr]      25 | struct feature  // sparse feature definition for the library interface
[INFO] [stderr]         |        ^~~~~~~
[INFO] [stderr]   In file included from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/autolink.cc:3:
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/learner.h: In instantiation of 'static LEARNER::learner<T, E>& LEARNER::learner<T, E>::init_learner(T*, L*, void (*)(T&, L&, E&), void (*)(T&, L&, E&), size_t, prediction_type::prediction_type_t) [with L = LEARNER::learner<char, example>; T = VW::autolink; E = example; size_t = long unsigned int]':
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/learner.h:422:42:   required from 'LEARNER::learner<T, E>& LEARNER::init_learner(free_ptr<T>&, L*, void (*)(T&, L&, E&), void (*)(T&, L&, E&)) [with T = VW::autolink; E = example; L = LEARNER::learner<char, example>; free_ptr<T> = std::unique_ptr<VW::autolink, void (*)(void*)>]'
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/autolink.cc:97:115:   required from here
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/learner.h:348:48: warning: cast between incompatible function types from 'void (*)(vw&, void*, example&)' to 'LEARNER::finish_example_data::fn' {aka 'void (*)(vw&, void*, void*)'} [-Wcast-function-type]
[INFO] [stderr]     348 |       ret.finish_example_fd.finish_example_f = (finish_example_data::fn)return_simple_example;
[INFO] [stderr]         |                                                ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/learner.h:357:28: warning: cast between incompatible function types from 'void (*)(VW::autolink&, LEARNER::learner<char, example>&, example&)' to 'LEARNER::learn_data::fn' {aka 'void (*)(void*, LEARNER::learner<char, char>&, void*)'} [-Wcast-function-type]
[INFO] [stderr]     357 |     ret.learn_fd.learn_f = (learn_data::fn)learn;
[INFO] [stderr]         |                            ^~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/learner.h:358:29: warning: cast between incompatible function types from 'void (*)(VW::autolink&, LEARNER::learner<char, example>&, example&)' to 'LEARNER::learn_data::fn' {aka 'void (*)(void*, LEARNER::learner<char, char>&, void*)'} [-Wcast-function-type]
[INFO] [stderr]     358 |     ret.learn_fd.update_f = (learn_data::fn)learn;
[INFO] [stderr]         |                             ^~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/learner.h:359:30: warning: cast between incompatible function types from 'void (*)(VW::autolink&, LEARNER::learner<char, example>&, example&)' to 'LEARNER::learn_data::fn' {aka 'void (*)(void*, LEARNER::learner<char, char>&, void*)'} [-Wcast-function-type]
[INFO] [stderr]     359 |     ret.learn_fd.predict_f = (learn_data::fn)predict;
[INFO] [stderr]         |                              ^~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr]   In file included from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/parser.h:28,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/learner.h:12,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/autolink.cc:3:
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/object_pool.h: In instantiation of 'void VW::no_lock_object_pool<T, TInitializer, TCleanup>::new_chunk(size_t) [with T = example; TInitializer = example_initializer; TCleanup = VW::default_cleanup<example>; size_t = long unsigned int]':
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/object_pool.h:36:5:   required from 'VW::no_lock_object_pool<T, TInitializer, TCleanup>::no_lock_object_pool(size_t, TInitializer, size_t) [with T = example; TInitializer = example_initializer; TCleanup = VW::default_cleanup<example>; size_t = long unsigned int]'
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/object_pool.h:170:63:   required from 'VW::object_pool<T, TInitializer, TCleanup>::object_pool(size_t, TInitializer, size_t) [with T = example; TInitializer = example_initializer; TCleanup = VW::default_cleanup<example>; size_t = long unsigned int]'
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/parser.h:41:116:   required from here
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/object_pool.h:111:13: warning: 'void* memset(void*, int, size_t)' clearing an object of non-trivial type 'struct example'; use assignment or value-initialization instead [-Wclass-memaccess]
[INFO] [stderr]     111 |       memset(&chunk[i], 0, sizeof(T));
[INFO] [stderr]         |       ~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr]   In file included from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/parser.h:9,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/learner.h:12,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/autolink.cc:3:
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/example.h:54:8: note: 'struct example' declared here
[INFO] [stderr]      54 | struct example : public example_predict  // core example datatype.
[INFO] [stderr]         |        ^~~~~~~
[INFO] [stderr]   c++: fatal error: Killed signal terminated program cc1plus
[INFO] [stderr]   compilation terminated.
[INFO] [stderr]   make[3]: *** [vowpalwabbit/CMakeFiles/vw.dir/build.make:102: vowpalwabbit/CMakeFiles/vw.dir/active.cc.o] Error 1
[INFO] [stderr]   make[3]: *** Waiting for unfinished jobs....
[INFO] [stderr]   In file included from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/global_data.h:31,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/accumulate.cc:15:
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/v_array.h: In instantiation of 'void v_array<T>::resize(size_t) [with T = std::shared_ptr<std::pair<std::__cxx11::basic_string<char>, std::__cxx11::basic_string<char> > >; size_t = long unsigned int]':
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/v_array.h:92:7:   required from 'void v_array<T>::clear() [with T = std::shared_ptr<std::pair<std::__cxx11::basic_string<char>, std::__cxx11::basic_string<char> > >]'
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/feature_group.h:301:23:   required from here
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/v_array.h:74:28: warning: 'void* realloc(void*, size_t)' moving an object of non-trivially copyable type 'class std::shared_ptr<std::pair<std::__cxx11::basic_string<char>, std::__cxx11::basic_string<char> > >'; use 'new' and 'delete' instead [-Wclass-memaccess]
[INFO] [stderr]      74 |       T* temp = (T*)realloc(_begin, sizeof(T) * length);
[INFO] [stderr]         |                     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr]   In file included from /usr/include/c++/9/memory:81,
[INFO] [stderr]                    from /usr/include/c++/9/thread:39,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/global_data.h:28,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/accumulate.cc:15:
[INFO] [stderr]   /usr/include/c++/9/bits/shared_ptr.h:103:11: note: 'class std::shared_ptr<std::pair<std::__cxx11::basic_string<char>, std::__cxx11::basic_string<char> > >' declared here
[INFO] [stderr]     103 |     class shared_ptr : public __shared_ptr<_Tp>
[INFO] [stderr]         |           ^~~~~~~~~~
[INFO] [stderr]   In file included from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/global_data.h:31,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/accumulate.cc:15:
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/v_array.h:82:15: warning: 'void* memset(void*, int, size_t)' clearing an object of type 'class std::shared_ptr<std::pair<std::__cxx11::basic_string<char>, std::__cxx11::basic_string<char> > >' with no trivial copy-assignment; use assignment or value-initialization instead [-Wclass-memaccess]
[INFO] [stderr]      82 |         memset(_begin + old_len, 0, (length - old_len) * sizeof(T));
[INFO] [stderr]         |         ~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr]   In file included from /usr/include/c++/9/memory:81,
[INFO] [stderr]                    from /usr/include/c++/9/thread:39,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/global_data.h:28,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/accumulate.cc:15:
[INFO] [stderr]   /usr/include/c++/9/bits/shared_ptr.h:103:11: note: 'class std::shared_ptr<std::pair<std::__cxx11::basic_string<char>, std::__cxx11::basic_string<char> > >' declared here
[INFO] [stderr]     103 |     class shared_ptr : public __shared_ptr<_Tp>
[INFO] [stderr]         |           ^~~~~~~~~~
[INFO] [stderr]   In file included from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/global_data.h:31,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/accumulate.cc:15:
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/v_array.h: In instantiation of 'void v_array<T>::resize(size_t) [with T = feature_slice; size_t = long unsigned int]':
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/v_array.h:110:7:   required from 'void v_array<T>::push_back(const T&) [with T = feature_slice]'
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/feature_group.h:354:29:   required from here
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/v_array.h:74:28: warning: 'void* realloc(void*, size_t)' moving an object of non-trivially copyable type 'struct feature_slice'; use 'new' and 'delete' instead [-Wclass-memaccess]
[INFO] [stderr]      74 |       T* temp = (T*)realloc(_begin, sizeof(T) * length);
[INFO] [stderr]         |                     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr]   In file included from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/example.h:18,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/global_data.h:36,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/accumulate.cc:15:
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/feature_group.h:33:8: note: 'struct feature_slice' declared here
[INFO] [stderr]      33 | struct feature_slice  // a helper struct for functions using the set {v,i,space_name}
[INFO] [stderr]         |        ^~~~~~~~~~~~~
[INFO] [stderr]   In file included from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/global_data.h:31,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/accumulate.cc:15:
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/v_array.h:82:15: warning: 'void* memset(void*, int, size_t)' clearing an object of type 'struct feature_slice' with no trivial copy-assignment; use assignment or value-initialization instead [-Wclass-memaccess]
[INFO] [stderr]      82 |         memset(_begin + old_len, 0, (length - old_len) * sizeof(T));
[INFO] [stderr]         |         ~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr]   In file included from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/example.h:18,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/global_data.h:36,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/accumulate.cc:15:
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/feature_group.h:33:8: note: 'struct feature_slice' declared here
[INFO] [stderr]      33 | struct feature_slice  // a helper struct for functions using the set {v,i,space_name}
[INFO] [stderr]         |        ^~~~~~~~~~~~~
[INFO] [stderr]   In file included from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/global_data.h:31,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/accumulate.cc:15:
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/v_array.h: In instantiation of 'void v_array<T>::resize(size_t) [with T = feature; size_t = long unsigned int]':
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/v_array.h:110:7:   required from 'void v_array<T>::push_back(const T&) [with T = feature]'
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/feature_group.h:371:29:   required from here
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/v_array.h:82:15: warning: 'void* memset(void*, int, size_t)' clearing an object of non-trivial type 'struct feature'; use assignment or value-initialization instead [-Wclass-memaccess]
[INFO] [stderr]      82 |         memset(_begin + old_len, 0, (length - old_len) * sizeof(T));
[INFO] [stderr]         |         ~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr]   In file included from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/example.h:18,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/global_data.h:36,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/accumulate.cc:15:
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/feature_group.h:25:8: note: 'struct feature' declared here
[INFO] [stderr]      25 | struct feature  // sparse feature definition for the library interface
[INFO] [stderr]         |        ^~~~~~~
[INFO] [stderr]   In file included from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/parser.h:28,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/learner.h:12,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/global_data.h:38,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/accumulate.cc:15:
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/object_pool.h: In instantiation of 'void VW::no_lock_object_pool<T, TInitializer, TCleanup>::new_chunk(size_t) [with T = example; TInitializer = example_initializer; TCleanup = VW::default_cleanup<example>; size_t = long unsigned int]':
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/object_pool.h:36:5:   required from 'VW::no_lock_object_pool<T, TInitializer, TCleanup>::no_lock_object_pool(size_t, TInitializer, size_t) [with T = example; TInitializer = example_initializer; TCleanup = VW::default_cleanup<example>; size_t = long unsigned int]'
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/object_pool.h:170:63:   required from 'VW::object_pool<T, TInitializer, TCleanup>::object_pool(size_t, TInitializer, size_t) [with T = example; TInitializer = example_initializer; TCleanup = VW::default_cleanup<example>; size_t = long unsigned int]'
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/parser.h:41:116:   required from here
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/object_pool.h:111:13: warning: 'void* memset(void*, int, size_t)' clearing an object of non-trivial type 'struct example'; use assignment or value-initialization instead [-Wclass-memaccess]
[INFO] [stderr]     111 |       memset(&chunk[i], 0, sizeof(T));
[INFO] [stderr]         |       ~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr]   In file included from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/global_data.h:36,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/accumulate.cc:15:
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/example.h:54:8: note: 'struct example' declared here
[INFO] [stderr]      54 | struct example : public example_predict  // core example datatype.
[INFO] [stderr]         |        ^~~~~~~
[INFO] [stderr]   c++: fatal error: Killed signal terminated program cc1plus
[INFO] [stderr]   compilation terminated.
[INFO] [stderr]   make[3]: *** [vowpalwabbit/CMakeFiles/vw.dir/build.make:115: vowpalwabbit/CMakeFiles/vw.dir/audit_regressor.cc.o] Error 1
[INFO] [stderr]   c++: fatal error: Killed signal terminated program cc1plus
[INFO] [stderr]   compilation terminated.
[INFO] [stderr]   make[3]: *** [vowpalwabbit/CMakeFiles/vw.dir/build.make:167: vowpalwabbit/CMakeFiles/vw.dir/bfgs.cc.o] Error 1
[INFO] [stderr]   c++: fatal error: Killed signal terminated program cc1plus
[INFO] [stderr]   compilation terminated.
[INFO] [stderr]   make[3]: *** [vowpalwabbit/CMakeFiles/vw.dir/build.make:206: vowpalwabbit/CMakeFiles/vw.dir/bs.cc.o] Error 1
[INFO] [stderr]   c++: fatal error: Killed signal terminated program cc1plus
[INFO] [stderr]   compilation terminated.
[INFO] [stderr]   make[3]: *** [vowpalwabbit/CMakeFiles/vw.dir/build.make:180: vowpalwabbit/CMakeFiles/vw.dir/binary.cc.o] Error 1
[INFO] [stderr]   c++: fatal error: Killed signal terminated program cc1plus
[INFO] [stderr]   compilation terminated.
[INFO] [stderr]   make[3]: *** [vowpalwabbit/CMakeFiles/vw.dir/build.make:141: vowpalwabbit/CMakeFiles/vw.dir/baseline.cc.o] Error 1
[INFO] [stderr]   In file included from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/global_data.h:38,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/vw.h:15,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/cb_algs.cc:8:
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/learner.h: In instantiation of 'void LEARNER::learner<T, E>::set_finish_example(void (*)(vw&, T&, E&)) [with T = CB_ALGS::cb; E = example]':
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/cb_algs.cc:201:46:   required from here
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/learner.h:310:42: warning: cast between incompatible function types from 'void (*)(vw&, CB_ALGS::cb&, example&)' to 'LEARNER::learner<CB_ALGS::cb, example>::end_fptr_type' {aka 'void (*)(vw&, void*, void*)'} [-Wcast-function-type]
[INFO] [stderr]     310 |     finish_example_fd.finish_example_f = (end_fptr_type)(f);
[INFO] [stderr]         |                                          ^~~~~~~~~~~~~~~~~~
[INFO] [stderr]   In file included from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/global_data.h:31,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/vw.h:15,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/cb_algs.cc:8:
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/v_array.h: In instantiation of 'void v_array<T>::resize(size_t) [with T = std::shared_ptr<std::pair<std::__cxx11::basic_string<char>, std::__cxx11::basic_string<char> > >; size_t = long unsigned int]':
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/v_array.h:92:7:   required from 'void v_array<T>::clear() [with T = std::shared_ptr<std::pair<std::__cxx11::basic_string<char>, std::__cxx11::basic_string<char> > >]'
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/feature_group.h:301:23:   required from here
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/v_array.h:74:28: warning: 'void* realloc(void*, size_t)' moving an object of non-trivially copyable type 'class std::shared_ptr<std::pair<std::__cxx11::basic_string<char>, std::__cxx11::basic_string<char> > >'; use 'new' and 'delete' instead [-Wclass-memaccess]
[INFO] [stderr]      74 |       T* temp = (T*)realloc(_begin, sizeof(T) * length);
[INFO] [stderr]         |                     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr]   In file included from /usr/include/c++/9/memory:81,
[INFO] [stderr]                    from /usr/include/c++/9/thread:39,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/global_data.h:28,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/vw.h:15,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/cb_algs.cc:8:
[INFO] [stderr]   /usr/include/c++/9/bits/shared_ptr.h:103:11: note: 'class std::shared_ptr<std::pair<std::__cxx11::basic_string<char>, std::__cxx11::basic_string<char> > >' declared here
[INFO] [stderr]     103 |     class shared_ptr : public __shared_ptr<_Tp>
[INFO] [stderr]         |           ^~~~~~~~~~
[INFO] [stderr]   In file included from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/global_data.h:31,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/vw.h:15,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/cb_algs.cc:8:
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/v_array.h:82:15: warning: 'void* memset(void*, int, size_t)' clearing an object of type 'class std::shared_ptr<std::pair<std::__cxx11::basic_string<char>, std::__cxx11::basic_string<char> > >' with no trivial copy-assignment; use assignment or value-initialization instead [-Wclass-memaccess]
[INFO] [stderr]      82 |         memset(_begin + old_len, 0, (length - old_len) * sizeof(T));
[INFO] [stderr]         |         ~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr]   In file included from /usr/include/c++/9/memory:81,
[INFO] [stderr]                    from /usr/include/c++/9/thread:39,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/global_data.h:28,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/vw.h:15,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/cb_algs.cc:8:
[INFO] [stderr]   /usr/include/c++/9/bits/shared_ptr.h:103:11: note: 'class std::shared_ptr<std::pair<std::__cxx11::basic_string<char>, std::__cxx11::basic_string<char> > >' declared here
[INFO] [stderr]     103 |     class shared_ptr : public __shared_ptr<_Tp>
[INFO] [stderr]         |           ^~~~~~~~~~
[INFO] [stderr]   In file included from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/global_data.h:31,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/vw.h:15,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/cb_algs.cc:8:
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/v_array.h: In instantiation of 'void v_array<T>::resize(size_t) [with T = feature_slice; size_t = long unsigned int]':
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/v_array.h:110:7:   required from 'void v_array<T>::push_back(const T&) [with T = feature_slice]'
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/feature_group.h:354:29:   required from here
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/v_array.h:74:28: warning: 'void* realloc(void*, size_t)' moving an object of non-trivially copyable type 'struct feature_slice'; use 'new' and 'delete' instead [-Wclass-memaccess]
[INFO] [stderr]      74 |       T* temp = (T*)realloc(_begin, sizeof(T) * length);
[INFO] [stderr]         |                     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr]   In file included from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/example.h:18,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/global_data.h:36,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/vw.h:15,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/cb_algs.cc:8:
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/feature_group.h:33:8: note: 'struct feature_slice' declared here
[INFO] [stderr]      33 | struct feature_slice  // a helper struct for functions using the set {v,i,space_name}
[INFO] [stderr]         |        ^~~~~~~~~~~~~
[INFO] [stderr]   In file included from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/global_data.h:31,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/vw.h:15,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/cb_algs.cc:8:
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/v_array.h:82:15: warning: 'void* memset(void*, int, size_t)' clearing an object of type 'struct feature_slice' with no trivial copy-assignment; use assignment or value-initialization instead [-Wclass-memaccess]
[INFO] [stderr]      82 |         memset(_begin + old_len, 0, (length - old_len) * sizeof(T));
[INFO] [stderr]         |         ~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr]   In file included from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/example.h:18,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/global_data.h:36,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/vw.h:15,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/cb_algs.cc:8:
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/feature_group.h:33:8: note: 'struct feature_slice' declared here
[INFO] [stderr]      33 | struct feature_slice  // a helper struct for functions using the set {v,i,space_name}
[INFO] [stderr]         |        ^~~~~~~~~~~~~
[INFO] [stderr]   In file included from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/global_data.h:31,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/vw.h:15,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/cb_algs.cc:8:
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/v_array.h: In instantiation of 'void v_array<T>::resize(size_t) [with T = feature; size_t = long unsigned int]':
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/v_array.h:110:7:   required from 'void v_array<T>::push_back(const T&) [with T = feature]'
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/feature_group.h:371:29:   required from here
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/v_array.h:82:15: warning: 'void* memset(void*, int, size_t)' clearing an object of non-trivial type 'struct feature'; use assignment or value-initialization instead [-Wclass-memaccess]
[INFO] [stderr]      82 |         memset(_begin + old_len, 0, (length - old_len) * sizeof(T));
[INFO] [stderr]         |         ~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr]   In file included from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/example.h:18,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/global_data.h:36,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/vw.h:15,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/cb_algs.cc:8:
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/feature_group.h:25:8: note: 'struct feature' declared here
[INFO] [stderr]      25 | struct feature  // sparse feature definition for the library interface
[INFO] [stderr]         |        ^~~~~~~
[INFO] [stderr]   In file included from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/global_data.h:38,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/vw.h:15,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/cb_algs.cc:8:
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/learner.h: In instantiation of 'static LEARNER::learner<T, E>& LEARNER::learner<T, E>::init_learner(T*, L*, void (*)(T&, L&, E&), void (*)(T&, L&, E&), size_t, prediction_type::prediction_type_t) [with L = LEARNER::learner<char, example>; T = CB_ALGS::cb; E = example; size_t = long unsigned int]':
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/learner.h:372:42:   required from 'LEARNER::learner<T, E>& LEARNER::init_learner(free_ptr<T>&, L*, void (*)(T&, L&, E&), void (*)(T&, L&, E&), size_t, prediction_type::prediction_type_t) [with T = CB_ALGS::cb; E = example; L = LEARNER::learner<char, example>; free_ptr<T> = std::unique_ptr<CB_ALGS::cb, void (*)(void*)>; size_t = long unsigned int]'
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/cb_algs.cc:200:108:   required from here
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/learner.h:348:48: warning: cast between incompatible function types from 'void (*)(vw&, void*, example&)' to 'LEARNER::finish_example_data::fn' {aka 'void (*)(vw&, void*, void*)'} [-Wcast-function-type]
[INFO] [stderr]     348 |       ret.finish_example_fd.finish_example_f = (finish_example_data::fn)return_simple_example;
[INFO] [stderr]         |                                                ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/learner.h:357:28: warning: cast between incompatible function types from 'void (*)(CB_ALGS::cb&, LEARNER::learner<char, example>&, example&)' to 'LEARNER::learn_data::fn' {aka 'void (*)(void*, LEARNER::learner<char, char>&, void*)'} [-Wcast-function-type]
[INFO] [stderr]     357 |     ret.learn_fd.learn_f = (learn_data::fn)learn;
[INFO] [stderr]         |                            ^~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/learner.h:358:29: warning: cast between incompatible function types from 'void (*)(CB_ALGS::cb&, LEARNER::learner<char, example>&, example&)' to 'LEARNER::learn_data::fn' {aka 'void (*)(void*, LEARNER::learner<char, char>&, void*)'} [-Wcast-function-type]
[INFO] [stderr]     358 |     ret.learn_fd.update_f = (learn_data::fn)learn;
[INFO] [stderr]         |                             ^~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/learner.h:359:30: warning: cast between incompatible function types from 'void (*)(CB_ALGS::cb&, LEARNER::learner<char, example>&, example&)' to 'LEARNER::learn_data::fn' {aka 'void (*)(void*, LEARNER::learner<char, char>&, void*)'} [-Wcast-function-type]
[INFO] [stderr]     359 |     ret.learn_fd.predict_f = (learn_data::fn)predict;
[INFO] [stderr]         |                              ^~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr]   In file included from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/parser.h:28,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/learner.h:12,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/global_data.h:38,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/vw.h:15,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/cb_algs.cc:8:
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/object_pool.h: In instantiation of 'void VW::no_lock_object_pool<T, TInitializer, TCleanup>::new_chunk(size_t) [with T = example; TInitializer = example_initializer; TCleanup = VW::default_cleanup<example>; size_t = long unsigned int]':
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/object_pool.h:36:5:   required from 'VW::no_lock_object_pool<T, TInitializer, TCleanup>::no_lock_object_pool(size_t, TInitializer, size_t) [with T = example; TInitializer = example_initializer; TCleanup = VW::default_cleanup<example>; size_t = long unsigned int]'
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/object_pool.h:170:63:   required from 'VW::object_pool<T, TInitializer, TCleanup>::object_pool(size_t, TInitializer, size_t) [with T = example; TInitializer = example_initializer; TCleanup = VW::default_cleanup<example>; size_t = long unsigned int]'
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/parser.h:41:116:   required from here
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/object_pool.h:111:13: warning: 'void* memset(void*, int, size_t)' clearing an object of non-trivial type 'struct example'; use assignment or value-initialization instead [-Wclass-memaccess]
[INFO] [stderr]     111 |       memset(&chunk[i], 0, sizeof(T));
[INFO] [stderr]         |       ~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr]   In file included from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/global_data.h:36,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/vw.h:15,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/cb_algs.cc:8:
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/example.h:54:8: note: 'struct example' declared here
[INFO] [stderr]      54 | struct example : public example_predict  // core example datatype.
[INFO] [stderr]         |        ^~~~~~~
[INFO] [stderr]   In file included from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/reductions.h:13,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/boosting.cc:23:
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/learner.h: In instantiation of 'void LEARNER::learner<T, E>::set_save_load(void (*)(T&, io_buf&, bool, bool)) [with T = boosting; E = example]':
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/boosting.cc:441:31:   required from here
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/learner.h:259:32: warning: cast between incompatible function types from 'void (*)(boosting&, io_buf&, bool, bool)' to 'LEARNER::save_load_data::fn' {aka 'void (*)(void*, io_buf&, bool, bool)'} [-Wcast-function-type]
[INFO] [stderr]     259 |     save_load_fd.save_load_f = (save_load_data::fn)sl;
[INFO] [stderr]         |                                ^~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/learner.h: In instantiation of 'void LEARNER::learner<T, E>::set_finish_example(void (*)(vw&, T&, E&)) [with T = boosting; E = example]':
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/boosting.cc:452:39:   required from here
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/learner.h:310:42: warning: cast between incompatible function types from 'void (*)(vw&, boosting&, example&)' to 'LEARNER::learner<boosting, example>::end_fptr_type' {aka 'void (*)(vw&, void*, void*)'} [-Wcast-function-type]
[INFO] [stderr]     310 |     finish_example_fd.finish_example_f = (end_fptr_type)(f);
[INFO] [stderr]         |                                          ^~~~~~~~~~~~~~~~~~
[INFO] [stderr]   In file included from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/reductions.h:13,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/cb_adf.cc:10:
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/learner.h: In instantiation of 'void LEARNER::learner<T, E>::set_finish_example(void (*)(vw&, T&, E&)) [with T = CB_ADF::cb_adf; E = std::vector<example*>]':
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/cb_adf.cc:577:56:   required from here
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/learner.h:310:42: warning: cast between incompatible function types from 'void (*)(vw&, CB_ADF::cb_adf&, std::vector<example*>&)' to 'LEARNER::learner<CB_ADF::cb_adf, std::vector<example*> >::end_fptr_type' {aka 'void (*)(vw&, void*, void*)'} [-Wcast-function-type]
[INFO] [stderr]     310 |     finish_example_fd.finish_example_f = (end_fptr_type)(f);
[INFO] [stderr]         |                                          ^~~~~~~~~~~~~~~~~~
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/learner.h: In instantiation of 'void LEARNER::learner<T, E>::set_save_load(void (*)(T&, io_buf&, bool, bool)) [with T = CB_ADF::cb_adf; E = std::vector<example*>]':
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/cb_adf.cc:581:36:   required from here
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/learner.h:259:32: warning: cast between incompatible function types from 'void (*)(CB_ADF::cb_adf&, io_buf&, bool, bool)' to 'LEARNER::save_load_data::fn' {aka 'void (*)(void*, io_buf&, bool, bool)'} [-Wcast-function-type]
[INFO] [stderr]     259 |     save_load_fd.save_load_f = (save_load_data::fn)sl;
[INFO] [stderr]         |                                ^~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr]   In file included from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/io_buf.h:14,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/reductions.h:10,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/boosting.cc:23:
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/v_array.h: In instantiation of 'void v_array<T>::resize(size_t) [with T = std::shared_ptr<std::pair<std::__cxx11::basic_string<char>, std::__cxx11::basic_string<char> > >; size_t = long unsigned int]':
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/v_array.h:92:7:   required from 'void v_array<T>::clear() [with T = std::shared_ptr<std::pair<std::__cxx11::basic_string<char>, std::__cxx11::basic_string<char> > >]'
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/feature_group.h:301:23:   required from here
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/v_array.h:74:28: warning: 'void* realloc(void*, size_t)' moving an object of non-trivially copyable type 'class std::shared_ptr<std::pair<std::__cxx11::basic_string<char>, std::__cxx11::basic_string<char> > >'; use 'new' and 'delete' instead [-Wclass-memaccess]
[INFO] [stderr]      74 |       T* temp = (T*)realloc(_begin, sizeof(T) * length);
[INFO] [stderr]         |                     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr]   In file included from /usr/include/c++/9/memory:81,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/boosting.cc:21:
[INFO] [stderr]   /usr/include/c++/9/bits/shared_ptr.h:103:11: note: 'class std::shared_ptr<std::pair<std::__cxx11::basic_string<char>, std::__cxx11::basic_string<char> > >' declared here
[INFO] [stderr]     103 |     class shared_ptr : public __shared_ptr<_Tp>
[INFO] [stderr]         |           ^~~~~~~~~~
[INFO] [stderr]   In file included from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/io_buf.h:14,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/reductions.h:10,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/boosting.cc:23:
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/v_array.h:82:15: warning: 'void* memset(void*, int, size_t)' clearing an object of type 'class std::shared_ptr<std::pair<std::__cxx11::basic_string<char>, std::__cxx11::basic_string<char> > >' with no trivial copy-assignment; use assignment or value-initialization instead [-Wclass-memaccess]
[INFO] [stderr]      82 |         memset(_begin + old_len, 0, (length - old_len) * sizeof(T));
[INFO] [stderr]         |         ~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr]   In file included from /usr/include/c++/9/memory:81,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/boosting.cc:21:
[INFO] [stderr]   /usr/include/c++/9/bits/shared_ptr.h:103:11: note: 'class std::shared_ptr<std::pair<std::__cxx11::basic_string<char>, std::__cxx11::basic_string<char> > >' declared here
[INFO] [stderr]     103 |     class shared_ptr : public __shared_ptr<_Tp>
[INFO] [stderr]         |           ^~~~~~~~~~
[INFO] [stderr]   In file included from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/io_buf.h:14,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/reductions.h:10,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/boosting.cc:23:
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/v_array.h: In instantiation of 'void v_array<T>::resize(size_t) [with T = feature_slice; size_t = long unsigned int]':
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/v_array.h:110:7:   required from 'void v_array<T>::push_back(const T&) [with T = feature_slice]'
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/feature_group.h:354:29:   required from here
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/v_array.h:74:28: warning: 'void* realloc(void*, size_t)' moving an object of non-trivially copyable type 'struct feature_slice'; use 'new' and 'delete' instead [-Wclass-memaccess]
[INFO] [stderr]      74 |       T* temp = (T*)realloc(_begin, sizeof(T) * length);
[INFO] [stderr]         |                     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr]   In file included from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/example.h:18,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/reductions.h:11,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/boosting.cc:23:
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/feature_group.h:33:8: note: 'struct feature_slice' declared here
[INFO] [stderr]      33 | struct feature_slice  // a helper struct for functions using the set {v,i,space_name}
[INFO] [stderr]         |        ^~~~~~~~~~~~~
[INFO] [stderr]   In file included from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/io_buf.h:14,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/reductions.h:10,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/boosting.cc:23:
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/v_array.h:82:15: warning: 'void* memset(void*, int, size_t)' clearing an object of type 'struct feature_slice' with no trivial copy-assignment; use assignment or value-initialization instead [-Wclass-memaccess]
[INFO] [stderr]      82 |         memset(_begin + old_len, 0, (length - old_len) * sizeof(T));
[INFO] [stderr]         |         ~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr]   In file included from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/example.h:18,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/reductions.h:11,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/boosting.cc:23:
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/feature_group.h:33:8: note: 'struct feature_slice' declared here
[INFO] [stderr]      33 | struct feature_slice  // a helper struct for functions using the set {v,i,space_name}
[INFO] [stderr]         |        ^~~~~~~~~~~~~
[INFO] [stderr]   In file included from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/io_buf.h:14,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/reductions.h:10,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/boosting.cc:23:
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/v_array.h: In instantiation of 'void v_array<T>::resize(size_t) [with T = feature; size_t = long unsigned int]':
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/v_array.h:110:7:   required from 'void v_array<T>::push_back(const T&) [with T = feature]'
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/feature_group.h:371:29:   required from here
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/v_array.h:82:15: warning: 'void* memset(void*, int, size_t)' clearing an object of non-trivial type 'struct feature'; use assignment or value-initialization instead [-Wclass-memaccess]
[INFO] [stderr]      82 |         memset(_begin + old_len, 0, (length - old_len) * sizeof(T));
[INFO] [stderr]         |         ~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr]   In file included from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/example.h:18,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/reductions.h:11,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/boosting.cc:23:
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/feature_group.h:25:8: note: 'struct feature' declared here
[INFO] [stderr]      25 | struct feature  // sparse feature definition for the library interface
[INFO] [stderr]         |        ^~~~~~~
[INFO] [stderr]   In file included from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/io_buf.h:14,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/reductions.h:10,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/cb_adf.cc:10:
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/v_array.h: In instantiation of 'void v_array<T>::resize(size_t) [with T = std::shared_ptr<std::pair<std::__cxx11::basic_string<char>, std::__cxx11::basic_string<char> > >; size_t = long unsigned int]':
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/v_array.h:92:7:   required from 'void v_array<T>::clear() [with T = std::shared_ptr<std::pair<std::__cxx11::basic_string<char>, std::__cxx11::basic_string<char> > >]'
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/feature_group.h:301:23:   required from here
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/v_array.h:74:28: warning: 'void* realloc(void*, size_t)' moving an object of non-trivially copyable type 'class std::shared_ptr<std::pair<std::__cxx11::basic_string<char>, std::__cxx11::basic_string<char> > >'; use 'new' and 'delete' instead [-Wclass-memaccess]
[INFO] [stderr]      74 |       T* temp = (T*)realloc(_begin, sizeof(T) * length);
[INFO] [stderr]         |                     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr]   In file included from /usr/include/c++/9/memory:81,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/external/boost/libs/function/include/boost/function/function_base.hpp:16,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/external/boost/libs/function/include/boost/function/detail/prologue.hpp:17,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/external/boost/libs/function/include/boost/function/function_template.hpp:13,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/external/boost/libs/function/include/boost/function/detail/maybe_include.hpp:22,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/external/boost/libs/function/include/boost/function/function1.hpp:11,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/external/boost/libs/program_options/include/boost/program_options/value_semantic.hpp:13,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/external/boost/libs/program_options/include/boost/program_options/options_description.hpp:13,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/external/boost/libs/program_options/include/boost/program_options.hpp:15,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/reductions.h:7,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/cb_adf.cc:10:
[INFO] [stderr]   /usr/include/c++/9/bits/shared_ptr.h:103:11: note: 'class std::shared_ptr<std::pair<std::__cxx11::basic_string<char>, std::__cxx11::basic_string<char> > >' declared here
[INFO] [stderr]     103 |     class shared_ptr : public __shared_ptr<_Tp>
[INFO] [stderr]         |           ^~~~~~~~~~
[INFO] [stderr]   In file included from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/io_buf.h:14,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/reductions.h:10,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/cb_adf.cc:10:
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/v_array.h:82:15: warning: 'void* memset(void*, int, size_t)' clearing an object of type 'class std::shared_ptr<std::pair<std::__cxx11::basic_string<char>, std::__cxx11::basic_string<char> > >' with no trivial copy-assignment; use assignment or value-initialization instead [-Wclass-memaccess]
[INFO] [stderr]      82 |         memset(_begin + old_len, 0, (length - old_len) * sizeof(T));
[INFO] [stderr]         |         ~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr]   In file included from /usr/include/c++/9/memory:81,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/external/boost/libs/function/include/boost/function/function_base.hpp:16,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/external/boost/libs/function/include/boost/function/detail/prologue.hpp:17,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/external/boost/libs/function/include/boost/function/function_template.hpp:13,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/external/boost/libs/function/include/boost/function/detail/maybe_include.hpp:22,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/external/boost/libs/function/include/boost/function/function1.hpp:11,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/external/boost/libs/program_options/include/boost/program_options/value_semantic.hpp:13,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/external/boost/libs/program_options/include/boost/program_options/options_description.hpp:13,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/external/boost/libs/program_options/include/boost/program_options.hpp:15,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/reductions.h:7,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/cb_adf.cc:10:
[INFO] [stderr]   /usr/include/c++/9/bits/shared_ptr.h:103:11: note: 'class std::shared_ptr<std::pair<std::__cxx11::basic_string<char>, std::__cxx11::basic_string<char> > >' declared here
[INFO] [stderr]     103 |     class shared_ptr : public __shared_ptr<_Tp>
[INFO] [stderr]         |           ^~~~~~~~~~
[INFO] [stderr]   In file included from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/io_buf.h:14,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/reductions.h:10,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/cb_adf.cc:10:
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/v_array.h: In instantiation of 'void v_array<T>::resize(size_t) [with T = feature_slice; size_t = long unsigned int]':
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/v_array.h:110:7:   required from 'void v_array<T>::push_back(const T&) [with T = feature_slice]'
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/feature_group.h:354:29:   required from here
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/v_array.h:74:28: warning: 'void* realloc(void*, size_t)' moving an object of non-trivially copyable type 'struct feature_slice'; use 'new' and 'delete' instead [-Wclass-memaccess]
[INFO] [stderr]      74 |       T* temp = (T*)realloc(_begin, sizeof(T) * length);
[INFO] [stderr]         |                     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr]   In file included from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/example.h:18,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/reductions.h:11,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/cb_adf.cc:10:
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/feature_group.h:33:8: note: 'struct feature_slice' declared here
[INFO] [stderr]      33 | struct feature_slice  // a helper struct for functions using the set {v,i,space_name}
[INFO] [stderr]         |        ^~~~~~~~~~~~~
[INFO] [stderr]   In file included from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/io_buf.h:14,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/reductions.h:10,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/cb_adf.cc:10:
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/v_array.h:82:15: warning: 'void* memset(void*, int, size_t)' clearing an object of type 'struct feature_slice' with no trivial copy-assignment; use assignment or value-initialization instead [-Wclass-memaccess]
[INFO] [stderr]      82 |         memset(_begin + old_len, 0, (length - old_len) * sizeof(T));
[INFO] [stderr]         |         ~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr]   In file included from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/example.h:18,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/reductions.h:11,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/cb_adf.cc:10:
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/feature_group.h:33:8: note: 'struct feature_slice' declared here
[INFO] [stderr]      33 | struct feature_slice  // a helper struct for functions using the set {v,i,space_name}
[INFO] [stderr]         |        ^~~~~~~~~~~~~
[INFO] [stderr]   In file included from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/io_buf.h:14,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/reductions.h:10,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/cb_adf.cc:10:
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/v_array.h: In instantiation of 'void v_array<T>::resize(size_t) [with T = feature; size_t = long unsigned int]':
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/v_array.h:110:7:   required from 'void v_array<T>::push_back(const T&) [with T = feature]'
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/feature_group.h:371:29:   required from here
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/v_array.h:82:15: warning: 'void* memset(void*, int, size_t)' clearing an object of non-trivial type 'struct feature'; use assignment or value-initialization instead [-Wclass-memaccess]
[INFO] [stderr]      82 |         memset(_begin + old_len, 0, (length - old_len) * sizeof(T));
[INFO] [stderr]         |         ~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr]   In file included from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/example.h:18,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/reductions.h:11,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/cb_adf.cc:10:
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/feature_group.h:25:8: note: 'struct feature' declared here
[INFO] [stderr]      25 | struct feature  // sparse feature definition for the library interface
[INFO] [stderr]         |        ^~~~~~~
[INFO] [stderr]   In file included from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/reductions.h:13,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/boosting.cc:23:
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/learner.h: In instantiation of 'static LEARNER::learner<T, E>& LEARNER::learner<T, E>::init_learner(T*, L*, void (*)(T&, L&, E&), void (*)(T&, L&, E&), size_t, prediction_type::prediction_type_t) [with L = LEARNER::learner<char, example>; T = boosting; E = example; size_t = long unsigned int]':
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/learner.h:412:42:   required from 'LEARNER::learner<T, E>& LEARNER::init_learner(free_ptr<T>&, L*, void (*)(T&, L&, E&), void (*)(T&, L&, E&), size_t) [with T = boosting; E = example; L = LEARNER::learner<char, example>; free_ptr<T> = std::unique_ptr<boosting, void (*)(void*)>; size_t = long unsigned int]'
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/boosting.cc:436:112:   required from here
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/learner.h:348:48: warning: cast between incompatible function types from 'void (*)(vw&, void*, example&)' to 'LEARNER::finish_example_data::fn' {aka 'void (*)(vw&, void*, void*)'} [-Wcast-function-type]
[INFO] [stderr]     348 |       ret.finish_example_fd.finish_example_f = (finish_example_data::fn)return_simple_example;
[INFO] [stderr]         |                                                ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/learner.h:357:28: warning: cast between incompatible function types from 'void (*)(boosting&, LEARNER::learner<char, example>&, example&)' to 'LEARNER::learn_data::fn' {aka 'void (*)(void*, LEARNER::learner<char, char>&, void*)'} [-Wcast-function-type]
[INFO] [stderr]     357 |     ret.learn_fd.learn_f = (learn_data::fn)learn;
[INFO] [stderr]         |                            ^~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/learner.h:358:29: warning: cast between incompatible function types from 'void (*)(boosting&, LEARNER::learner<char, example>&, example&)' to 'LEARNER::learn_data::fn' {aka 'void (*)(void*, LEARNER::learner<char, char>&, void*)'} [-Wcast-function-type]
[INFO] [stderr]     358 |     ret.learn_fd.update_f = (learn_data::fn)learn;
[INFO] [stderr]         |                             ^~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/learner.h:359:30: warning: cast between incompatible function types from 'void (*)(boosting&, LEARNER::learner<char, example>&, example&)' to 'LEARNER::learn_data::fn' {aka 'void (*)(void*, LEARNER::learner<char, char>&, void*)'} [-Wcast-function-type]
[INFO] [stderr]     359 |     ret.learn_fd.predict_f = (learn_data::fn)predict;
[INFO] [stderr]         |                              ^~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr]   In file included from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/reductions.h:13,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/cb_adf.cc:10:
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/learner.h: In instantiation of 'static LEARNER::learner<T, E>& LEARNER::learner<T, E>::init_learner(T*, L*, void (*)(T&, L&, E&), void (*)(T&, L&, E&), size_t, prediction_type::prediction_type_t) [with L = LEARNER::learner<char, std::vector<example*> >; T = CB_ADF::cb_adf; E = std::vector<example*>; size_t = long unsigned int]':
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/learner.h:372:42:   required from 'LEARNER::learner<T, E>& LEARNER::init_learner(free_ptr<T>&, L*, void (*)(T&, L&, E&), void (*)(T&, L&, E&), size_t, prediction_type::prediction_type_t) [with T = CB_ADF::cb_adf; E = std::vector<example*>; L = LEARNER::learner<char, std::vector<example*> >; free_ptr<T> = std::unique_ptr<CB_ADF::cb_adf, void (*)(void*)>; size_t = long unsigned int]'
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/cb_adf.cc:576:96:   required from here
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/learner.h:348:48: warning: cast between incompatible function types from 'void (*)(vw&, void*, example&)' to 'LEARNER::finish_example_data::fn' {aka 'void (*)(vw&, void*, void*)'} [-Wcast-function-type]
[INFO] [stderr]     348 |       ret.finish_example_fd.finish_example_f = (finish_example_data::fn)return_simple_example;
[INFO] [stderr]         |                                                ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/learner.h:357:28: warning: cast between incompatible function types from 'void (*)(CB_ADF::cb_adf&, LEARNER::learner<char, std::vector<example*> >&, std::vector<example*>&)' to 'LEARNER::learn_data::fn' {aka 'void (*)(void*, LEARNER::learner<char, char>&, void*)'} [-Wcast-function-type]
[INFO] [stderr]     357 |     ret.learn_fd.learn_f = (learn_data::fn)learn;
[INFO] [stderr]         |                            ^~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/learner.h:358:29: warning: cast between incompatible function types from 'void (*)(CB_ADF::cb_adf&, LEARNER::learner<char, std::vector<example*> >&, std::vector<example*>&)' to 'LEARNER::learn_data::fn' {aka 'void (*)(void*, LEARNER::learner<char, char>&, void*)'} [-Wcast-function-type]
[INFO] [stderr]     358 |     ret.learn_fd.update_f = (learn_data::fn)learn;
[INFO] [stderr]         |                             ^~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/learner.h:359:30: warning: cast between incompatible function types from 'void (*)(CB_ADF::cb_adf&, LEARNER::learner<char, std::vector<example*> >&, std::vector<example*>&)' to 'LEARNER::learn_data::fn' {aka 'void (*)(void*, LEARNER::learner<char, char>&, void*)'} [-Wcast-function-type]
[INFO] [stderr]     359 |     ret.learn_fd.predict_f = (learn_data::fn)predict;
[INFO] [stderr]         |                              ^~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr]   In file included from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/parser.h:28,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/reductions.h:12,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/boosting.cc:23:
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/object_pool.h: In instantiation of 'void VW::no_lock_object_pool<T, TInitializer, TCleanup>::new_chunk(size_t) [with T = example; TInitializer = example_initializer; TCleanup = VW::default_cleanup<example>; size_t = long unsigned int]':
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/object_pool.h:36:5:   required from 'VW::no_lock_object_pool<T, TInitializer, TCleanup>::no_lock_object_pool(size_t, TInitializer, size_t) [with T = example; TInitializer = example_initializer; TCleanup = VW::default_cleanup<example>; size_t = long unsigned int]'
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/object_pool.h:170:63:   required from 'VW::object_pool<T, TInitializer, TCleanup>::object_pool(size_t, TInitializer, size_t) [with T = example; TInitializer = example_initializer; TCleanup = VW::default_cleanup<example>; size_t = long unsigned int]'
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/parser.h:41:116:   required from here
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/object_pool.h:111:13: warning: 'void* memset(void*, int, size_t)' clearing an object of non-trivial type 'struct example'; use assignment or value-initialization instead [-Wclass-memaccess]
[INFO] [stderr]     111 |       memset(&chunk[i], 0, sizeof(T));
[INFO] [stderr]         |       ~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr]   In file included from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/reductions.h:11,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/boosting.cc:23:
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/example.h:54:8: note: 'struct example' declared here
[INFO] [stderr]      54 | struct example : public example_predict  // core example datatype.
[INFO] [stderr]         |        ^~~~~~~
[INFO] [stderr]   In file included from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/parser.h:28,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/reductions.h:12,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/cb_adf.cc:10:
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/object_pool.h: In instantiation of 'void VW::no_lock_object_pool<T, TInitializer, TCleanup>::new_chunk(size_t) [with T = example; TInitializer = example_initializer; TCleanup = VW::default_cleanup<example>; size_t = long unsigned int]':
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/object_pool.h:36:5:   required from 'VW::no_lock_object_pool<T, TInitializer, TCleanup>::no_lock_object_pool(size_t, TInitializer, size_t) [with T = example; TInitializer = example_initializer; TCleanup = VW::default_cleanup<example>; size_t = long unsigned int]'
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/object_pool.h:170:63:   required from 'VW::object_pool<T, TInitializer, TCleanup>::object_pool(size_t, TInitializer, size_t) [with T = example; TInitializer = example_initializer; TCleanup = VW::default_cleanup<example>; size_t = long unsigned int]'
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/parser.h:41:116:   required from here
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/object_pool.h:111:13: warning: 'void* memset(void*, int, size_t)' clearing an object of non-trivial type 'struct example'; use assignment or value-initialization instead [-Wclass-memaccess]
[INFO] [stderr]     111 |       memset(&chunk[i], 0, sizeof(T));
[INFO] [stderr]         |       ~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr]   In file included from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/reductions.h:11,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/cb_adf.cc:10:
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/example.h:54:8: note: 'struct example' declared here
[INFO] [stderr]      54 | struct example : public example_predict  // core example datatype.
[INFO] [stderr]         |        ^~~~~~~
[INFO] [stderr]   c++: fatal error: Killed signal terminated program cc1plus
[INFO] [stderr]   compilation terminated.
[INFO] [stderr]   make[3]: *** [vowpalwabbit/CMakeFiles/vw.dir/build.make:245: vowpalwabbit/CMakeFiles/vw.dir/cb_algs.cc.o] Error 1
[INFO] [stderr]   In file included from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/global_data.h:38,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/vw.h:15,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/gen_cs_example.h:9,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/cb_explore_adf_common.h:21,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/cb_explore_adf_bag.cc:3:
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/learner.h: In instantiation of 'void LEARNER::learner<T, E>::set_finish_example(void (*)(vw&, T&, E&)) [with T = VW::cb_explore_adf::cb_explore_adf_base<VW::cb_explore_adf::bag::cb_explore_adf_bag>; E = std::vector<example*>]':
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/cb_explore_adf_bag.cc:155:62:   required from here
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/learner.h:310:42: warning: cast between incompatible function types from 'void (*)(vw&, VW::cb_explore_adf::cb_explore_adf_base<VW::cb_explore_adf::bag::cb_explore_adf_bag>&, std::vector<example*>&)' to 'LEARNER::learner<VW::cb_explore_adf::cb_explore_adf_base<VW::cb_explore_adf::bag::cb_explore_adf_bag>, std::vector<example*> >::end_fptr_type' {aka 'void (*)(vw&, void*, void*)'} [-Wcast-function-type]
[INFO] [stderr]     310 |     finish_example_fd.finish_example_f = (end_fptr_type)(f);
[INFO] [stderr]         |                                          ^~~~~~~~~~~~~~~~~~
[INFO] [stderr]   In file included from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/cb_explore_adf_common.h:16,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/cb_explore_adf_bag.cc:3:
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/v_array.h: In instantiation of 'void v_array<T>::resize(size_t) [with T = std::shared_ptr<std::pair<std::__cxx11::basic_string<char>, std::__cxx11::basic_string<char> > >; size_t = long unsigned int]':
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/v_array.h:92:7:   required from 'void v_array<T>::clear() [with T = std::shared_ptr<std::pair<std::__cxx11::basic_string<char>, std::__cxx11::basic_string<char> > >]'
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/feature_group.h:301:23:   required from here
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/v_array.h:74:28: warning: 'void* realloc(void*, size_t)' moving an object of non-trivially copyable type 'class std::shared_ptr<std::pair<std::__cxx11::basic_string<char>, std::__cxx11::basic_string<char> > >'; use 'new' and 'delete' instead [-Wclass-memaccess]
[INFO] [stderr]      74 |       T* temp = (T*)realloc(_begin, sizeof(T) * length);
[INFO] [stderr]         |                     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr]   In file included from /usr/include/c++/9/memory:81,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/cb_explore_adf_bag.h:11,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/cb_explore_adf_bag.cc:1:
[INFO] [stderr]   /usr/include/c++/9/bits/shared_ptr.h:103:11: note: 'class std::shared_ptr<std::pair<std::__cxx11::basic_string<char>, std::__cxx11::basic_string<char> > >' declared here
[INFO] [stderr]     103 |     class shared_ptr : public __shared_ptr<_Tp>
[INFO] [stderr]         |           ^~~~~~~~~~
[INFO] [stderr]   In file included from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/cb_explore_adf_common.h:16,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/cb_explore_adf_bag.cc:3:
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/v_array.h:82:15: warning: 'void* memset(void*, int, size_t)' clearing an object of type 'class std::shared_ptr<std::pair<std::__cxx11::basic_string<char>, std::__cxx11::basic_string<char> > >' with no trivial copy-assignment; use assignment or value-initialization instead [-Wclass-memaccess]
[INFO] [stderr]      82 |         memset(_begin + old_len, 0, (length - old_len) * sizeof(T));
[INFO] [stderr]         |         ~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr]   In file included from /usr/include/c++/9/memory:81,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/cb_explore_adf_bag.h:11,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/cb_explore_adf_bag.cc:1:
[INFO] [stderr]   /usr/include/c++/9/bits/shared_ptr.h:103:11: note: 'class std::shared_ptr<std::pair<std::__cxx11::basic_string<char>, std::__cxx11::basic_string<char> > >' declared here
[INFO] [stderr]     103 |     class shared_ptr : public __shared_ptr<_Tp>
[INFO] [stderr]         |           ^~~~~~~~~~
[INFO] [stderr]   In file included from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/cb_explore_adf_common.h:16,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/cb_explore_adf_bag.cc:3:
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/v_array.h: In instantiation of 'void v_array<T>::resize(size_t) [with T = feature_slice; size_t = long unsigned int]':
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/v_array.h:110:7:   required from 'void v_array<T>::push_back(const T&) [with T = feature_slice]'
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/feature_group.h:354:29:   required from here
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/v_array.h:74:28: warning: 'void* realloc(void*, size_t)' moving an object of non-trivially copyable type 'struct feature_slice'; use 'new' and 'delete' instead [-Wclass-memaccess]
[INFO] [stderr]      74 |       T* temp = (T*)realloc(_begin, sizeof(T) * length);
[INFO] [stderr]         |                     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr]   In file included from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/example.h:18,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/cb_explore_adf_common.h:20,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/cb_explore_adf_bag.cc:3:
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/feature_group.h:33:8: note: 'struct feature_slice' declared here
[INFO] [stderr]      33 | struct feature_slice  // a helper struct for functions using the set {v,i,space_name}
[INFO] [stderr]         |        ^~~~~~~~~~~~~
[INFO] [stderr]   In file included from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/cb_explore_adf_common.h:16,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/cb_explore_adf_bag.cc:3:
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/v_array.h:82:15: warning: 'void* memset(void*, int, size_t)' clearing an object of type 'struct feature_slice' with no trivial copy-assignment; use assignment or value-initialization instead [-Wclass-memaccess]
[INFO] [stderr]      82 |         memset(_begin + old_len, 0, (length - old_len) * sizeof(T));
[INFO] [stderr]         |         ~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr]   In file included from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/example.h:18,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/cb_explore_adf_common.h:20,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/cb_explore_adf_bag.cc:3:
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/feature_group.h:33:8: note: 'struct feature_slice' declared here
[INFO] [stderr]      33 | struct feature_slice  // a helper struct for functions using the set {v,i,space_name}
[INFO] [stderr]         |        ^~~~~~~~~~~~~
[INFO] [stderr]   In file included from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/cb_explore_adf_common.h:16,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/cb_explore_adf_bag.cc:3:
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/v_array.h: In instantiation of 'void v_array<T>::resize(size_t) [with T = feature; size_t = long unsigned int]':
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/v_array.h:110:7:   required from 'void v_array<T>::push_back(const T&) [with T = feature]'
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/feature_group.h:371:29:   required from here
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/v_array.h:82:15: warning: 'void* memset(void*, int, size_t)' clearing an object of non-trivial type 'struct feature'; use assignment or value-initialization instead [-Wclass-memaccess]
[INFO] [stderr]      82 |         memset(_begin + old_len, 0, (length - old_len) * sizeof(T));
[INFO] [stderr]         |         ~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr]   In file included from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/example.h:18,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/cb_explore_adf_common.h:20,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/cb_explore_adf_bag.cc:3:
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/feature_group.h:25:8: note: 'struct feature' declared here
[INFO] [stderr]      25 | struct feature  // sparse feature definition for the library interface
[INFO] [stderr]         |        ^~~~~~~
[INFO] [stderr]   In file included from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/global_data.h:38,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/vw.h:15,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/gen_cs_example.h:9,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/cb_explore_adf_common.h:21,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/cb_explore_adf_bag.cc:3:
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/learner.h: In instantiation of 'static LEARNER::learner<T, E>& LEARNER::learner<T, E>::init_learner(T*, L*, void (*)(T&, L&, E&), void (*)(T&, L&, E&), size_t, prediction_type::prediction_type_t) [with L = LEARNER::learner<char, std::vector<example*> >; T = VW::cb_explore_adf::cb_explore_adf_base<VW::cb_explore_adf::bag::cb_explore_adf_bag>; E = std::vector<example*>; size_t = long unsigned int]':
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/learner.h:372:42:   required from 'LEARNER::learner<T, E>& LEARNER::init_learner(free_ptr<T>&, L*, void (*)(T&, L&, E&), void (*)(T&, L&, E&), size_t, prediction_type::prediction_type_t) [with T = VW::cb_explore_adf::cb_explore_adf_base<VW::cb_explore_adf::bag::cb_explore_adf_bag>; E = std::vector<example*>; L = LEARNER::learner<char, std::vector<example*> >; free_ptr<T> = std::unique_ptr<VW::cb_explore_adf::cb_explore_adf_base<VW::cb_explore_adf::bag::cb_explore_adf_bag>, void (*)(void*)>; size_t = long unsigned int]'
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/cb_explore_adf_bag.cc:153:112:   required from here
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/learner.h:348:48: warning: cast between incompatible function types from 'void (*)(vw&, void*, example&)' to 'LEARNER::finish_example_data::fn' {aka 'void (*)(vw&, void*, void*)'} [-Wcast-function-type]
[INFO] [stderr]     348 |       ret.finish_example_fd.finish_example_f = (finish_example_data::fn)return_simple_example;
[INFO] [stderr]         |                                                ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/learner.h:357:28: warning: cast between incompatible function types from 'void (*)(VW::cb_explore_adf::cb_explore_adf_base<VW::cb_explore_adf::bag::cb_explore_adf_bag>&, LEARNER::learner<char, std::vector<example*> >&, std::vector<example*>&)' to 'LEARNER::learn_data::fn' {aka 'void (*)(void*, LEARNER::learner<char, char>&, void*)'} [-Wcast-function-type]
[INFO] [stderr]     357 |     ret.learn_fd.learn_f = (learn_data::fn)learn;
[INFO] [stderr]         |                            ^~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/learner.h:358:29: warning: cast between incompatible function types from 'void (*)(VW::cb_explore_adf::cb_explore_adf_base<VW::cb_explore_adf::bag::cb_explore_adf_bag>&, LEARNER::learner<char, std::vector<example*> >&, std::vector<example*>&)' to 'LEARNER::learn_data::fn' {aka 'void (*)(void*, LEARNER::learner<char, char>&, void*)'} [-Wcast-function-type]
[INFO] [stderr]     358 |     ret.learn_fd.update_f = (learn_data::fn)learn;
[INFO] [stderr]         |                             ^~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/learner.h:359:30: warning: cast between incompatible function types from 'void (*)(VW::cb_explore_adf::cb_explore_adf_base<VW::cb_explore_adf::bag::cb_explore_adf_bag>&, LEARNER::learner<char, std::vector<example*> >&, std::vector<example*>&)' to 'LEARNER::learn_data::fn' {aka 'void (*)(void*, LEARNER::learner<char, char>&, void*)'} [-Wcast-function-type]
[INFO] [stderr]     359 |     ret.learn_fd.predict_f = (learn_data::fn)predict;
[INFO] [stderr]         |                              ^~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr]   In file included from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/parser.h:28,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/learner.h:12,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/global_data.h:38,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/vw.h:15,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/gen_cs_example.h:9,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/cb_explore_adf_common.h:21,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/cb_explore_adf_bag.cc:3:
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/object_pool.h: In instantiation of 'void VW::no_lock_object_pool<T, TInitializer, TCleanup>::new_chunk(size_t) [with T = example; TInitializer = example_initializer; TCleanup = VW::default_cleanup<example>; size_t = long unsigned int]':
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/object_pool.h:36:5:   required from 'VW::no_lock_object_pool<T, TInitializer, TCleanup>::no_lock_object_pool(size_t, TInitializer, size_t) [with T = example; TInitializer = example_initializer; TCleanup = VW::default_cleanup<example>; size_t = long unsigned int]'
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/object_pool.h:170:63:   required from 'VW::object_pool<T, TInitializer, TCleanup>::object_pool(size_t, TInitializer, size_t) [with T = example; TInitializer = example_initializer; TCleanup = VW::default_cleanup<example>; size_t = long unsigned int]'
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/parser.h:41:116:   required from here
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/object_pool.h:111:13: warning: 'void* memset(void*, int, size_t)' clearing an object of non-trivial type 'struct example'; use assignment or value-initialization instead [-Wclass-memaccess]
[INFO] [stderr]     111 |       memset(&chunk[i], 0, sizeof(T));
[INFO] [stderr]         |       ~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr]   In file included from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/cb_explore_adf_common.h:20,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/cb_explore_adf_bag.cc:3:
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/example.h:54:8: note: 'struct example' declared here
[INFO] [stderr]      54 | struct example : public example_predict  // core example datatype.
[INFO] [stderr]         |        ^~~~~~~
[INFO] [stderr]   In file included from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/io_buf.h:14,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/reductions.h:10,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/active_cover.cc:4:
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/v_array.h: In instantiation of 'void v_array<T>::resize(size_t) [with T = std::shared_ptr<std::pair<std::__cxx11::basic_string<char>, std::__cxx11::basic_string<char> > >; size_t = long unsigned int]':
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/v_array.h:92:7:   required from 'void v_array<T>::clear() [with T = std::shared_ptr<std::pair<std::__cxx11::basic_string<char>, std::__cxx11::basic_string<char> > >]'
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/feature_group.h:301:23:   required from here
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/v_array.h:74:28: warning: 'void* realloc(void*, size_t)' moving an object of non-trivially copyable type 'class std::shared_ptr<std::pair<std::__cxx11::basic_string<char>, std::__cxx11::basic_string<char> > >'; use 'new' and 'delete' instead [-Wclass-memaccess]
[INFO] [stderr]      74 |       T* temp = (T*)realloc(_begin, sizeof(T) * length);
[INFO] [stderr]         |                     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr]   In file included from /usr/include/c++/9/memory:81,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/active_cover.cc:3:
[INFO] [stderr]   /usr/include/c++/9/bits/shared_ptr.h:103:11: note: 'class std::shared_ptr<std::pair<std::__cxx11::basic_string<char>, std::__cxx11::basic_string<char> > >' declared here
[INFO] [stderr]     103 |     class shared_ptr : public __shared_ptr<_Tp>
[INFO] [stderr]         |           ^~~~~~~~~~
[INFO] [stderr]   In file included from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/io_buf.h:14,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/reductions.h:10,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/active_cover.cc:4:
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/v_array.h:82:15: warning: 'void* memset(void*, int, size_t)' clearing an object of type 'class std::shared_ptr<std::pair<std::__cxx11::basic_string<char>, std::__cxx11::basic_string<char> > >' with no trivial copy-assignment; use assignment or value-initialization instead [-Wclass-memaccess]
[INFO] [stderr]      82 |         memset(_begin + old_len, 0, (length - old_len) * sizeof(T));
[INFO] [stderr]         |         ~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr]   In file included from /usr/include/c++/9/memory:81,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/active_cover.cc:3:
[INFO] [stderr]   /usr/include/c++/9/bits/shared_ptr.h:103:11: note: 'class std::shared_ptr<std::pair<std::__cxx11::basic_string<char>, std::__cxx11::basic_string<char> > >' declared here
[INFO] [stderr]     103 |     class shared_ptr : public __shared_ptr<_Tp>
[INFO] [stderr]         |           ^~~~~~~~~~
[INFO] [stderr]   In file included from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/io_buf.h:14,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/reductions.h:10,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/active_cover.cc:4:
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/v_array.h: In instantiation of 'void v_array<T>::resize(size_t) [with T = feature_slice; size_t = long unsigned int]':
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/v_array.h:110:7:   required from 'void v_array<T>::push_back(const T&) [with T = feature_slice]'
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/feature_group.h:354:29:   required from here
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/v_array.h:74:28: warning: 'void* realloc(void*, size_t)' moving an object of non-trivially copyable type 'struct feature_slice'; use 'new' and 'delete' instead [-Wclass-memaccess]
[INFO] [stderr]      74 |       T* temp = (T*)realloc(_begin, sizeof(T) * length);
[INFO] [stderr]         |                     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr]   In file included from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/example.h:18,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/reductions.h:11,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/active_cover.cc:4:
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/feature_group.h:33:8: note: 'struct feature_slice' declared here
[INFO] [stderr]      33 | struct feature_slice  // a helper struct for functions using the set {v,i,space_name}
[INFO] [stderr]         |        ^~~~~~~~~~~~~
[INFO] [stderr]   In file included from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/io_buf.h:14,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/reductions.h:10,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/active_cover.cc:4:
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/v_array.h:82:15: warning: 'void* memset(void*, int, size_t)' clearing an object of type 'struct feature_slice' with no trivial copy-assignment; use assignment or value-initialization instead [-Wclass-memaccess]
[INFO] [stderr]      82 |         memset(_begin + old_len, 0, (length - old_len) * sizeof(T));
[INFO] [stderr]         |         ~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr]   In file included from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/example.h:18,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/reductions.h:11,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/active_cover.cc:4:
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/feature_group.h:33:8: note: 'struct feature_slice' declared here
[INFO] [stderr]      33 | struct feature_slice  // a helper struct for functions using the set {v,i,space_name}
[INFO] [stderr]         |        ^~~~~~~~~~~~~
[INFO] [stderr]   In file included from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/io_buf.h:14,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/reductions.h:10,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/active_cover.cc:4:
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/v_array.h: In instantiation of 'void v_array<T>::resize(size_t) [with T = feature; size_t = long unsigned int]':
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/v_array.h:110:7:   required from 'void v_array<T>::push_back(const T&) [with T = feature]'
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/feature_group.h:371:29:   required from here
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/v_array.h:82:15: warning: 'void* memset(void*, int, size_t)' clearing an object of non-trivial type 'struct feature'; use assignment or value-initialization instead [-Wclass-memaccess]
[INFO] [stderr]      82 |         memset(_begin + old_len, 0, (length - old_len) * sizeof(T));
[INFO] [stderr]         |         ~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr]   In file included from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/example.h:18,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/reductions.h:11,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/active_cover.cc:4:
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/feature_group.h:25:8: note: 'struct feature' declared here
[INFO] [stderr]      25 | struct feature  // sparse feature definition for the library interface
[INFO] [stderr]         |        ^~~~~~~
[INFO] [stderr]   In file included from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/reductions.h:13,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/active_cover.cc:4:
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/learner.h: In instantiation of 'static LEARNER::learner<T, E>& LEARNER::learner<T, E>::init_learner(T*, L*, void (*)(T&, L&, E&), void (*)(T&, L&, E&), size_t, prediction_type::prediction_type_t) [with L = LEARNER::learner<char, example>; T = active_cover; E = example; size_t = long unsigned int]':
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/learner.h:412:42:   required from 'LEARNER::learner<T, E>& LEARNER::init_learner(free_ptr<T>&, L*, void (*)(T&, L&, E&), void (*)(T&, L&, E&), size_t) [with T = active_cover; E = example; L = LEARNER::learner<char, example>; free_ptr<T> = std::unique_ptr<active_cover, void (*)(void*)>; size_t = long unsigned int]'
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/active_cover.cc:279:114:   required from here
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/learner.h:348:48: warning: cast between incompatible function types from 'void (*)(vw&, void*, example&)' to 'LEARNER::finish_example_data::fn' {aka 'void (*)(vw&, void*, void*)'} [-Wcast-function-type]
[INFO] [stderr]     348 |       ret.finish_example_fd.finish_example_f = (finish_example_data::fn)return_simple_example;
[INFO] [stderr]         |                                                ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/learner.h:357:28: warning: cast between incompatible function types from 'void (*)(active_cover&, LEARNER::learner<char, example>&, example&)' to 'LEARNER::learn_data::fn' {aka 'void (*)(void*, LEARNER::learner<char, char>&, void*)'} [-Wcast-function-type]
[INFO] [stderr]     357 |     ret.learn_fd.learn_f = (learn_data::fn)learn;
[INFO] [stderr]         |                            ^~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/learner.h:358:29: warning: cast between incompatible function types from 'void (*)(active_cover&, LEARNER::learner<char, example>&, example&)' to 'LEARNER::learn_data::fn' {aka 'void (*)(void*, LEARNER::learner<char, char>&, void*)'} [-Wcast-function-type]
[INFO] [stderr]     358 |     ret.learn_fd.update_f = (learn_data::fn)learn;
[INFO] [stderr]         |                             ^~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/learner.h:359:30: warning: cast between incompatible function types from 'void (*)(active_cover&, LEARNER::learner<char, example>&, example&)' to 'LEARNER::learn_data::fn' {aka 'void (*)(void*, LEARNER::learner<char, char>&, void*)'} [-Wcast-function-type]
[INFO] [stderr]     359 |     ret.learn_fd.predict_f = (learn_data::fn)predict;
[INFO] [stderr]         |                              ^~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr]   In file included from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/parser.h:28,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/reductions.h:12,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/active_cover.cc:4:
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/object_pool.h: In instantiation of 'void VW::no_lock_object_pool<T, TInitializer, TCleanup>::new_chunk(size_t) [with T = example; TInitializer = example_initializer; TCleanup = VW::default_cleanup<example>; size_t = long unsigned int]':
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/object_pool.h:36:5:   required from 'VW::no_lock_object_pool<T, TInitializer, TCleanup>::no_lock_object_pool(size_t, TInitializer, size_t) [with T = example; TInitializer = example_initializer; TCleanup = VW::default_cleanup<example>; size_t = long unsigned int]'
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/object_pool.h:170:63:   required from 'VW::object_pool<T, TInitializer, TCleanup>::object_pool(size_t, TInitializer, size_t) [with T = example; TInitializer = example_initializer; TCleanup = VW::default_cleanup<example>; size_t = long unsigned int]'
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/parser.h:41:116:   required from here
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/object_pool.h:111:13: warning: 'void* memset(void*, int, size_t)' clearing an object of non-trivial type 'struct example'; use assignment or value-initialization instead [-Wclass-memaccess]
[INFO] [stderr]     111 |       memset(&chunk[i], 0, sizeof(T));
[INFO] [stderr]         |       ~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr]   In file included from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/reductions.h:11,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/active_cover.cc:4:
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/example.h:54:8: note: 'struct example' declared here
[INFO] [stderr]      54 | struct example : public example_predict  // core example datatype.
[INFO] [stderr]         |        ^~~~~~~
[INFO] [stderr]   c++: fatal error: Killed signal terminated program cc1plus
[INFO] [stderr]   compilation terminated.
[INFO] [stderr]   make[3]: *** [vowpalwabbit/CMakeFiles/vw.dir/build.make:232: vowpalwabbit/CMakeFiles/vw.dir/cb_adf.cc.o] Error 1
[INFO] [stderr]   In file included from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/global_data.h:38,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/vw.h:15,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/gen_cs_example.h:9,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/cb_explore_adf_common.h:21,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/cb_explore_adf_first.h:8,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/cb_explore_adf_first.cc:1:
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/learner.h: In instantiation of 'void LEARNER::learner<T, E>::set_finish_example(void (*)(vw&, T&, E&)) [with T = VW::cb_explore_adf::cb_explore_adf_base<VW::cb_explore_adf::first::cb_explore_adf_first>; E = std::vector<example*>]':
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/cb_explore_adf_first.cc:108:62:   required from here
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/learner.h:310:42: warning: cast between incompatible function types from 'void (*)(vw&, VW::cb_explore_adf::cb_explore_adf_base<VW::cb_explore_adf::first::cb_explore_adf_first>&, std::vector<example*>&)' to 'LEARNER::learner<VW::cb_explore_adf::cb_explore_adf_base<VW::cb_explore_adf::first::cb_explore_adf_first>, std::vector<example*> >::end_fptr_type' {aka 'void (*)(vw&, void*, void*)'} [-Wcast-function-type]
[INFO] [stderr]     310 |     finish_example_fd.finish_example_f = (end_fptr_type)(f);
[INFO] [stderr]         |                                          ^~~~~~~~~~~~~~~~~~
[INFO] [stderr]   In file included from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/cb_explore_adf_common.h:16,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/cb_explore_adf_first.h:8,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/cb_explore_adf_first.cc:1:
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/v_array.h: In instantiation of 'void v_array<T>::resize(size_t) [with T = std::shared_ptr<std::pair<std::__cxx11::basic_string<char>, std::__cxx11::basic_string<char> > >; size_t = long unsigned int]':
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/v_array.h:92:7:   required from 'void v_array<T>::clear() [with T = std::shared_ptr<std::pair<std::__cxx11::basic_string<char>, std::__cxx11::basic_string<char> > >]'
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/feature_group.h:301:23:   required from here
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/v_array.h:74:28: warning: 'void* realloc(void*, size_t)' moving an object of non-trivially copyable type 'class std::shared_ptr<std::pair<std::__cxx11::basic_string<char>, std::__cxx11::basic_string<char> > >'; use 'new' and 'delete' instead [-Wclass-memaccess]
[INFO] [stderr]      74 |       T* temp = (T*)realloc(_begin, sizeof(T) * length);
[INFO] [stderr]         |                     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr]   In file included from /usr/include/c++/9/memory:81,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/memory.h:5,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/v_array.h:26,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/cb_explore_adf_common.h:16,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/cb_explore_adf_first.h:8,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/cb_explore_adf_first.cc:1:
[INFO] [stderr]   /usr/include/c++/9/bits/shared_ptr.h:103:11: note: 'class std::shared_ptr<std::pair<std::__cxx11::basic_string<char>, std::__cxx11::basic_string<char> > >' declared here
[INFO] [stderr]     103 |     class shared_ptr : public __shared_ptr<_Tp>
[INFO] [stderr]         |           ^~~~~~~~~~
[INFO] [stderr]   In file included from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/cb_explore_adf_common.h:16,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/cb_explore_adf_first.h:8,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/cb_explore_adf_first.cc:1:
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/v_array.h:82:15: warning: 'void* memset(void*, int, size_t)' clearing an object of type 'class std::shared_ptr<std::pair<std::__cxx11::basic_string<char>, std::__cxx11::basic_string<char> > >' with no trivial copy-assignment; use assignment or value-initialization instead [-Wclass-memaccess]
[INFO] [stderr]      82 |         memset(_begin + old_len, 0, (length - old_len) * sizeof(T));
[INFO] [stderr]         |         ~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr]   In file included from /usr/include/c++/9/memory:81,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/memory.h:5,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/v_array.h:26,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/cb_explore_adf_common.h:16,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/cb_explore_adf_first.h:8,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/cb_explore_adf_first.cc:1:
[INFO] [stderr]   /usr/include/c++/9/bits/shared_ptr.h:103:11: note: 'class std::shared_ptr<std::pair<std::__cxx11::basic_string<char>, std::__cxx11::basic_string<char> > >' declared here
[INFO] [stderr]     103 |     class shared_ptr : public __shared_ptr<_Tp>
[INFO] [stderr]         |           ^~~~~~~~~~
[INFO] [stderr]   In file included from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/cb_explore_adf_common.h:16,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/cb_explore_adf_first.h:8,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/cb_explore_adf_first.cc:1:
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/v_array.h: In instantiation of 'void v_array<T>::resize(size_t) [with T = feature_slice; size_t = long unsigned int]':
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/v_array.h:110:7:   required from 'void v_array<T>::push_back(const T&) [with T = feature_slice]'
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/feature_group.h:354:29:   required from here
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/v_array.h:74:28: warning: 'void* realloc(void*, size_t)' moving an object of non-trivially copyable type 'struct feature_slice'; use 'new' and 'delete' instead [-Wclass-memaccess]
[INFO] [stderr]      74 |       T* temp = (T*)realloc(_begin, sizeof(T) * length);
[INFO] [stderr]         |                     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr]   In file included from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/example.h:18,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/cb_explore_adf_common.h:20,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/cb_explore_adf_first.h:8,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/cb_explore_adf_first.cc:1:
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/feature_group.h:33:8: note: 'struct feature_slice' declared here
[INFO] [stderr]      33 | struct feature_slice  // a helper struct for functions using the set {v,i,space_name}
[INFO] [stderr]         |        ^~~~~~~~~~~~~
[INFO] [stderr]   In file included from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/cb_explore_adf_common.h:16,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/cb_explore_adf_first.h:8,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/cb_explore_adf_first.cc:1:
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/v_array.h:82:15: warning: 'void* memset(void*, int, size_t)' clearing an object of type 'struct feature_slice' with no trivial copy-assignment; use assignment or value-initialization instead [-Wclass-memaccess]
[INFO] [stderr]      82 |         memset(_begin + old_len, 0, (length - old_len) * sizeof(T));
[INFO] [stderr]         |         ~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr]   In file included from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/example.h:18,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/cb_explore_adf_common.h:20,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/cb_explore_adf_first.h:8,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/cb_explore_adf_first.cc:1:
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/feature_group.h:33:8: note: 'struct feature_slice' declared here
[INFO] [stderr]      33 | struct feature_slice  // a helper struct for functions using the set {v,i,space_name}
[INFO] [stderr]         |        ^~~~~~~~~~~~~
[INFO] [stderr]   In file included from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/cb_explore_adf_common.h:16,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/cb_explore_adf_first.h:8,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/cb_explore_adf_first.cc:1:
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/v_array.h: In instantiation of 'void v_array<T>::resize(size_t) [with T = feature; size_t = long unsigned int]':
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/v_array.h:110:7:   required from 'void v_array<T>::push_back(const T&) [with T = feature]'
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/feature_group.h:371:29:   required from here
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/v_array.h:82:15: warning: 'void* memset(void*, int, size_t)' clearing an object of non-trivial type 'struct feature'; use assignment or value-initialization instead [-Wclass-memaccess]
[INFO] [stderr]      82 |         memset(_begin + old_len, 0, (length - old_len) * sizeof(T));
[INFO] [stderr]         |         ~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr]   In file included from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/example.h:18,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/cb_explore_adf_common.h:20,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/cb_explore_adf_first.h:8,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/cb_explore_adf_first.cc:1:
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/feature_group.h:25:8: note: 'struct feature' declared here
[INFO] [stderr]      25 | struct feature  // sparse feature definition for the library interface
[INFO] [stderr]         |        ^~~~~~~
[INFO] [stderr]   In file included from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/global_data.h:38,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/vw.h:15,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/gen_cs_example.h:9,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/cb_explore_adf_common.h:21,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/cb_explore_adf_first.h:8,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/cb_explore_adf_first.cc:1:
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/learner.h: In instantiation of 'static LEARNER::learner<T, E>& LEARNER::learner<T, E>::init_learner(T*, L*, void (*)(T&, L&, E&), void (*)(T&, L&, E&), size_t, prediction_type::prediction_type_t) [with L = LEARNER::learner<char, std::vector<example*> >; T = VW::cb_explore_adf::cb_explore_adf_base<VW::cb_explore_adf::first::cb_explore_adf_first>; E = std::vector<example*>; size_t = long unsigned int]':
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/learner.h:372:42:   required from 'LEARNER::learner<T, E>& LEARNER::init_learner(free_ptr<T>&, L*, void (*)(T&, L&, E&), void (*)(T&, L&, E&), size_t, prediction_type::prediction_type_t) [with T = VW::cb_explore_adf::cb_explore_adf_base<VW::cb_explore_adf::first::cb_explore_adf_first>; E = std::vector<example*>; L = LEARNER::learner<char, std::vector<example*> >; free_ptr<T> = std::unique_ptr<VW::cb_explore_adf::cb_explore_adf_base<VW::cb_explore_adf::first::cb_explore_adf_first>, void (*)(void*)>; size_t = long unsigned int]'
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/cb_explore_adf_first.cc:106:112:   required from here
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/learner.h:348:48: warning: cast between incompatible function types from 'void (*)(vw&, void*, example&)' to 'LEARNER::finish_example_data::fn' {aka 'void (*)(vw&, void*, void*)'} [-Wcast-function-type]
[INFO] [stderr]     348 |       ret.finish_example_fd.finish_example_f = (finish_example_data::fn)return_simple_example;
[INFO] [stderr]         |                                                ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/learner.h:357:28: warning: cast between incompatible function types from 'void (*)(VW::cb_explore_adf::cb_explore_adf_base<VW::cb_explore_adf::first::cb_explore_adf_first>&, LEARNER::learner<char, std::vector<example*> >&, std::vector<example*>&)' to 'LEARNER::learn_data::fn' {aka 'void (*)(void*, LEARNER::learner<char, char>&, void*)'} [-Wcast-function-type]
[INFO] [stderr]     357 |     ret.learn_fd.learn_f = (learn_data::fn)learn;
[INFO] [stderr]         |                            ^~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/learner.h:358:29: warning: cast between incompatible function types from 'void (*)(VW::cb_explore_adf::cb_explore_adf_base<VW::cb_explore_adf::first::cb_explore_adf_first>&, LEARNER::learner<char, std::vector<example*> >&, std::vector<example*>&)' to 'LEARNER::learn_data::fn' {aka 'void (*)(void*, LEARNER::learner<char, char>&, void*)'} [-Wcast-function-type]
[INFO] [stderr]     358 |     ret.learn_fd.update_f = (learn_data::fn)learn;
[INFO] [stderr]         |                             ^~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/learner.h:359:30: warning: cast between incompatible function types from 'void (*)(VW::cb_explore_adf::cb_explore_adf_base<VW::cb_explore_adf::first::cb_explore_adf_first>&, LEARNER::learner<char, std::vector<example*> >&, std::vector<example*>&)' to 'LEARNER::learn_data::fn' {aka 'void (*)(void*, LEARNER::learner<char, char>&, void*)'} [-Wcast-function-type]
[INFO] [stderr]     359 |     ret.learn_fd.predict_f = (learn_data::fn)predict;
[INFO] [stderr]         |                              ^~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr]   In file included from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/parser.h:28,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/learner.h:12,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/global_data.h:38,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/vw.h:15,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/gen_cs_example.h:9,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/cb_explore_adf_common.h:21,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/cb_explore_adf_first.h:8,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/cb_explore_adf_first.cc:1:
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/object_pool.h: In instantiation of 'void VW::no_lock_object_pool<T, TInitializer, TCleanup>::new_chunk(size_t) [with T = example; TInitializer = example_initializer; TCleanup = VW::default_cleanup<example>; size_t = long unsigned int]':
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/object_pool.h:36:5:   required from 'VW::no_lock_object_pool<T, TInitializer, TCleanup>::no_lock_object_pool(size_t, TInitializer, size_t) [with T = example; TInitializer = example_initializer; TCleanup = VW::default_cleanup<example>; size_t = long unsigned int]'
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/object_pool.h:170:63:   required from 'VW::object_pool<T, TInitializer, TCleanup>::object_pool(size_t, TInitializer, size_t) [with T = example; TInitializer = example_initializer; TCleanup = VW::default_cleanup<example>; size_t = long unsigned int]'
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/parser.h:41:116:   required from here
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/object_pool.h:111:13: warning: 'void* memset(void*, int, size_t)' clearing an object of non-trivial type 'struct example'; use assignment or value-initialization instead [-Wclass-memaccess]
[INFO] [stderr]     111 |       memset(&chunk[i], 0, sizeof(T));
[INFO] [stderr]         |       ~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr]   In file included from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/cb_explore_adf_common.h:20,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/cb_explore_adf_first.h:8,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/cb_explore_adf_first.cc:1:
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/example.h:54:8: note: 'struct example' declared here
[INFO] [stderr]      54 | struct example : public example_predict  // core example datatype.
[INFO] [stderr]         |        ^~~~~~~
[INFO] [stderr]   In file included from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/global_data.h:38,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/vw.h:15,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/gen_cs_example.h:9,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/cb_explore_adf_common.h:21,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/cb_explore_adf_cover.h:11,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/cb_explore_adf_cover.cc:1:
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/learner.h: In instantiation of 'void LEARNER::learner<T, E>::set_finish_example(void (*)(vw&, T&, E&)) [with T = VW::cb_explore_adf::cb_explore_adf_base<VW::cb_explore_adf::cover::cb_explore_adf_cover>; E = std::vector<example*>]':
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/cb_explore_adf_cover.cc:250:62:   required from here
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/learner.h:310:42: warning: cast between incompatible function types from 'void (*)(vw&, VW::cb_explore_adf::cb_explore_adf_base<VW::cb_explore_adf::cover::cb_explore_adf_cover>&, std::vector<example*>&)' to 'LEARNER::learner<VW::cb_explore_adf::cb_explore_adf_base<VW::cb_explore_adf::cover::cb_explore_adf_cover>, std::vector<example*> >::end_fptr_type' {aka 'void (*)(vw&, void*, void*)'} [-Wcast-function-type]
[INFO] [stderr]     310 |     finish_example_fd.finish_example_f = (end_fptr_type)(f);
[INFO] [stderr]         |                                          ^~~~~~~~~~~~~~~~~~
[INFO] [stderr]   In file included from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/cb_explore_adf_common.h:16,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/cb_explore_adf_cover.h:11,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/cb_explore_adf_cover.cc:1:
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/v_array.h: In instantiation of 'void v_array<T>::resize(size_t) [with T = std::shared_ptr<std::pair<std::__cxx11::basic_string<char>, std::__cxx11::basic_string<char> > >; size_t = long unsigned int]':
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/v_array.h:92:7:   required from 'void v_array<T>::clear() [with T = std::shared_ptr<std::pair<std::__cxx11::basic_string<char>, std::__cxx11::basic_string<char> > >]'
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/feature_group.h:301:23:   required from here
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/v_array.h:74:28: warning: 'void* realloc(void*, size_t)' moving an object of non-trivially copyable type 'class std::shared_ptr<std::pair<std::__cxx11::basic_string<char>, std::__cxx11::basic_string<char> > >'; use 'new' and 'delete' instead [-Wclass-memaccess]
[INFO] [stderr]      74 |       T* temp = (T*)realloc(_begin, sizeof(T) * length);
[INFO] [stderr]         |                     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr]   In file included from /usr/include/c++/9/memory:81,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/memory.h:5,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/v_array.h:26,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/cb_explore_adf_common.h:16,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/cb_explore_adf_cover.h:11,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/cb_explore_adf_cover.cc:1:
[INFO] [stderr]   /usr/include/c++/9/bits/shared_ptr.h:103:11: note: 'class std::shared_ptr<std::pair<std::__cxx11::basic_string<char>, std::__cxx11::basic_string<char> > >' declared here
[INFO] [stderr]     103 |     class shared_ptr : public __shared_ptr<_Tp>
[INFO] [stderr]         |           ^~~~~~~~~~
[INFO] [stderr]   In file included from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/cb_explore_adf_common.h:16,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/cb_explore_adf_cover.h:11,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/cb_explore_adf_cover.cc:1:
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/v_array.h:82:15: warning: 'void* memset(void*, int, size_t)' clearing an object of type 'class std::shared_ptr<std::pair<std::__cxx11::basic_string<char>, std::__cxx11::basic_string<char> > >' with no trivial copy-assignment; use assignment or value-initialization instead [-Wclass-memaccess]
[INFO] [stderr]      82 |         memset(_begin + old_len, 0, (length - old_len) * sizeof(T));
[INFO] [stderr]         |         ~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr]   In file included from /usr/include/c++/9/memory:81,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/memory.h:5,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/v_array.h:26,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/cb_explore_adf_common.h:16,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/cb_explore_adf_cover.h:11,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/cb_explore_adf_cover.cc:1:
[INFO] [stderr]   /usr/include/c++/9/bits/shared_ptr.h:103:11: note: 'class std::shared_ptr<std::pair<std::__cxx11::basic_string<char>, std::__cxx11::basic_string<char> > >' declared here
[INFO] [stderr]     103 |     class shared_ptr : public __shared_ptr<_Tp>
[INFO] [stderr]         |           ^~~~~~~~~~
[INFO] [stderr]   In file included from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/cb_explore_adf_common.h:16,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/cb_explore_adf_cover.h:11,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/cb_explore_adf_cover.cc:1:
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/v_array.h: In instantiation of 'void v_array<T>::resize(size_t) [with T = feature_slice; size_t = long unsigned int]':
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/v_array.h:110:7:   required from 'void v_array<T>::push_back(const T&) [with T = feature_slice]'
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/feature_group.h:354:29:   required from here
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/v_array.h:74:28: warning: 'void* realloc(void*, size_t)' moving an object of non-trivially copyable type 'struct feature_slice'; use 'new' and 'delete' instead [-Wclass-memaccess]
[INFO] [stderr]      74 |       T* temp = (T*)realloc(_begin, sizeof(T) * length);
[INFO] [stderr]         |                     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr]   In file included from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/example.h:18,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/cb_explore_adf_common.h:20,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/cb_explore_adf_cover.h:11,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/cb_explore_adf_cover.cc:1:
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/feature_group.h:33:8: note: 'struct feature_slice' declared here
[INFO] [stderr]      33 | struct feature_slice  // a helper struct for functions using the set {v,i,space_name}
[INFO] [stderr]         |        ^~~~~~~~~~~~~
[INFO] [stderr]   In file included from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/cb_explore_adf_common.h:16,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/cb_explore_adf_cover.h:11,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/cb_explore_adf_cover.cc:1:
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/v_array.h:82:15: warning: 'void* memset(void*, int, size_t)' clearing an object of type 'struct feature_slice' with no trivial copy-assignment; use assignment or value-initialization instead [-Wclass-memaccess]
[INFO] [stderr]      82 |         memset(_begin + old_len, 0, (length - old_len) * sizeof(T));
[INFO] [stderr]         |         ~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr]   In file included from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/example.h:18,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/cb_explore_adf_common.h:20,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/cb_explore_adf_cover.h:11,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/cb_explore_adf_cover.cc:1:
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/feature_group.h:33:8: note: 'struct feature_slice' declared here
[INFO] [stderr]      33 | struct feature_slice  // a helper struct for functions using the set {v,i,space_name}
[INFO] [stderr]         |        ^~~~~~~~~~~~~
[INFO] [stderr]   In file included from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/cb_explore_adf_common.h:16,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/cb_explore_adf_cover.h:11,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/cb_explore_adf_cover.cc:1:
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/v_array.h: In instantiation of 'void v_array<T>::resize(size_t) [with T = feature; size_t = long unsigned int]':
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/v_array.h:110:7:   required from 'void v_array<T>::push_back(const T&) [with T = feature]'
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/feature_group.h:371:29:   required from here
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/v_array.h:82:15: warning: 'void* memset(void*, int, size_t)' clearing an object of non-trivial type 'struct feature'; use assignment or value-initialization instead [-Wclass-memaccess]
[INFO] [stderr]      82 |         memset(_begin + old_len, 0, (length - old_len) * sizeof(T));
[INFO] [stderr]         |         ~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr]   In file included from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/example.h:18,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/cb_explore_adf_common.h:20,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/cb_explore_adf_cover.h:11,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/cb_explore_adf_cover.cc:1:
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/feature_group.h:25:8: note: 'struct feature' declared here
[INFO] [stderr]      25 | struct feature  // sparse feature definition for the library interface
[INFO] [stderr]         |        ^~~~~~~
[INFO] [stderr]   In file included from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/global_data.h:38,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/vw.h:15,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/gen_cs_example.h:9,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/cb_explore_adf_common.h:21,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/cb_explore_adf_cover.h:11,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/cb_explore_adf_cover.cc:1:
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/learner.h: In instantiation of 'static LEARNER::learner<T, E>& LEARNER::learner<T, E>::init_learner(T*, L*, void (*)(T&, L&, E&), void (*)(T&, L&, E&), size_t, prediction_type::prediction_type_t) [with L = LEARNER::learner<char, std::vector<example*> >; T = VW::cb_explore_adf::cb_explore_adf_base<VW::cb_explore_adf::cover::cb_explore_adf_cover>; E = std::vector<example*>; size_t = long unsigned int]':
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/learner.h:372:42:   required from 'LEARNER::learner<T, E>& LEARNER::init_learner(free_ptr<T>&, L*, void (*)(T&, L&, E&), void (*)(T&, L&, E&), size_t, prediction_type::prediction_type_t) [with T = VW::cb_explore_adf::cb_explore_adf_base<VW::cb_explore_adf::cover::cb_explore_adf_cover>; E = std::vector<example*>; L = LEARNER::learner<char, std::vector<example*> >; free_ptr<T> = std::unique_ptr<VW::cb_explore_adf::cb_explore_adf_base<VW::cb_explore_adf::cover::cb_explore_adf_cover>, void (*)(void*)>; size_t = long unsigned int]'
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/cb_explore_adf_cover.cc:248:112:   required from here
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/learner.h:348:48: warning: cast between incompatible function types from 'void (*)(vw&, void*, example&)' to 'LEARNER::finish_example_data::fn' {aka 'void (*)(vw&, void*, void*)'} [-Wcast-function-type]
[INFO] [stderr]     348 |       ret.finish_example_fd.finish_example_f = (finish_example_data::fn)return_simple_example;
[INFO] [stderr]         |                                                ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/learner.h:357:28: warning: cast between incompatible function types from 'void (*)(VW::cb_explore_adf::cb_explore_adf_base<VW::cb_explore_adf::cover::cb_explore_adf_cover>&, LEARNER::learner<char, std::vector<example*> >&, std::vector<example*>&)' to 'LEARNER::learn_data::fn' {aka 'void (*)(void*, LEARNER::learner<char, char>&, void*)'} [-Wcast-function-type]
[INFO] [stderr]     357 |     ret.learn_fd.learn_f = (learn_data::fn)learn;
[INFO] [stderr]         |                            ^~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/learner.h:358:29: warning: cast between incompatible function types from 'void (*)(VW::cb_explore_adf::cb_explore_adf_base<VW::cb_explore_adf::cover::cb_explore_adf_cover>&, LEARNER::learner<char, std::vector<example*> >&, std::vector<example*>&)' to 'LEARNER::learn_data::fn' {aka 'void (*)(void*, LEARNER::learner<char, char>&, void*)'} [-Wcast-function-type]
[INFO] [stderr]     358 |     ret.learn_fd.update_f = (learn_data::fn)learn;
[INFO] [stderr]         |                             ^~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/learner.h:359:30: warning: cast between incompatible function types from 'void (*)(VW::cb_explore_adf::cb_explore_adf_base<VW::cb_explore_adf::cover::cb_explore_adf_cover>&, LEARNER::learner<char, std::vector<example*> >&, std::vector<example*>&)' to 'LEARNER::learn_data::fn' {aka 'void (*)(void*, LEARNER::learner<char, char>&, void*)'} [-Wcast-function-type]
[INFO] [stderr]     359 |     ret.learn_fd.predict_f = (learn_data::fn)predict;
[INFO] [stderr]         |                              ^~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr]   In file included from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/parser.h:28,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/learner.h:12,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/global_data.h:38,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/vw.h:15,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/gen_cs_example.h:9,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/cb_explore_adf_common.h:21,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/cb_explore_adf_cover.h:11,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/cb_explore_adf_cover.cc:1:
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/object_pool.h: In instantiation of 'void VW::no_lock_object_pool<T, TInitializer, TCleanup>::new_chunk(size_t) [with T = example; TInitializer = example_initializer; TCleanup = VW::default_cleanup<example>; size_t = long unsigned int]':
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/object_pool.h:36:5:   required from 'VW::no_lock_object_pool<T, TInitializer, TCleanup>::no_lock_object_pool(size_t, TInitializer, size_t) [with T = example; TInitializer = example_initializer; TCleanup = VW::default_cleanup<example>; size_t = long unsigned int]'
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/object_pool.h:170:63:   required from 'VW::object_pool<T, TInitializer, TCleanup>::object_pool(size_t, TInitializer, size_t) [with T = example; TInitializer = example_initializer; TCleanup = VW::default_cleanup<example>; size_t = long unsigned int]'
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/parser.h:41:116:   required from here
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/object_pool.h:111:13: warning: 'void* memset(void*, int, size_t)' clearing an object of non-trivial type 'struct example'; use assignment or value-initialization instead [-Wclass-memaccess]
[INFO] [stderr]     111 |       memset(&chunk[i], 0, sizeof(T));
[INFO] [stderr]         |       ~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr]   In file included from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/cb_explore_adf_common.h:20,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/cb_explore_adf_cover.h:11,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/cb_explore_adf_cover.cc:1:
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/example.h:54:8: note: 'struct example' declared here
[INFO] [stderr]      54 | struct example : public example_predict  // core example datatype.
[INFO] [stderr]         |        ^~~~~~~
[INFO] [stderr]   make[2]: *** [CMakeFiles/Makefile2:575: vowpalwabbit/CMakeFiles/vw.dir/all] Error 2
[INFO] [stderr]   make[1]: *** [CMakeFiles/Makefile2:496: vowpalwabbit/CMakeFiles/vw_c_wrapper.dir/rule] Error 2
[INFO] [stderr]   make: *** [Makefile:294: vw_c_wrapper] Error 2
[INFO] [stderr]   thread 'main' panicked at '
[INFO] [stderr]   command did not execute successfully, got: exit code: 2
[INFO] [stderr] 
[INFO] [stderr]   build script failed, must exit now', /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/cmake-0.1.44/src/lib.rs:885:5
[INFO] [stderr]   stack backtrace:
[INFO] [stderr]      0:     0x55ce8ab6de30 - std::backtrace_rs::backtrace::libunwind::trace::h452faf99f32e7c93
[INFO] [stderr]                                  at /rustc/72f88fc4e9458f89516a0b8b0868f3718aec5b47/library/std/src/../../backtrace/src/backtrace/libunwind.rs:96
[INFO] [stderr]      1:     0x55ce8ab6de30 - std::backtrace_rs::backtrace::trace_unsynchronized::he40edc71437667a1
[INFO] [stderr]                                  at /rustc/72f88fc4e9458f89516a0b8b0868f3718aec5b47/library/std/src/../../backtrace/src/backtrace/mod.rs:66
[INFO] [stderr]      2:     0x55ce8ab6de30 - std::sys_common::backtrace::_print_fmt::h6c51d6ade71f46bf
[INFO] [stderr]                                  at /rustc/72f88fc4e9458f89516a0b8b0868f3718aec5b47/library/std/src/sys_common/backtrace.rs:79
[INFO] [stderr]      3:     0x55ce8ab6de30 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h3cd15d7003dec37a
[INFO] [stderr]                                  at /rustc/72f88fc4e9458f89516a0b8b0868f3718aec5b47/library/std/src/sys_common/backtrace.rs:58
[INFO] [stderr]      4:     0x55ce8ab9424c - core::fmt::write::h1857a60b204f1b6a
[INFO] [stderr]                                  at /rustc/72f88fc4e9458f89516a0b8b0868f3718aec5b47/library/core/src/fmt/mod.rs:1080
[INFO] [stderr]      5:     0x55ce8ab6a3b7 - std::io::Write::write_fmt::hac61caff894c35ae
[INFO] [stderr]                                  at /rustc/72f88fc4e9458f89516a0b8b0868f3718aec5b47/library/std/src/io/mod.rs:1517
[INFO] [stderr]      6:     0x55ce8ab707d0 - std::sys_common::backtrace::_print::haa2f390fb7957e3e
[INFO] [stderr]                                  at /rustc/72f88fc4e9458f89516a0b8b0868f3718aec5b47/library/std/src/sys_common/backtrace.rs:61
[INFO] [stderr]      7:     0x55ce8ab707d0 - std::sys_common::backtrace::print::h48c7cbbad9013bb1
[INFO] [stderr]                                  at /rustc/72f88fc4e9458f89516a0b8b0868f3718aec5b47/library/std/src/sys_common/backtrace.rs:48
[INFO] [stderr]      8:     0x55ce8ab707d0 - std::panicking::default_hook::{{closure}}::h8b7ff05a31e71d55
[INFO] [stderr]                                  at /rustc/72f88fc4e9458f89516a0b8b0868f3718aec5b47/library/std/src/panicking.rs:208
[INFO] [stderr]      9:     0x55ce8ab7051c - std::panicking::default_hook::h2f00c78800d98e4c
[INFO] [stderr]                                  at /rustc/72f88fc4e9458f89516a0b8b0868f3718aec5b47/library/std/src/panicking.rs:227
[INFO] [stderr]     10:     0x55ce8ab70e33 - std::panicking::rust_panic_with_hook::h4eaa635e4694aef3
[INFO] [stderr]                                  at /rustc/72f88fc4e9458f89516a0b8b0868f3718aec5b47/library/std/src/panicking.rs:577
[INFO] [stderr]     11:     0x55ce8ab70a09 - std::panicking::begin_panic_handler::{{closure}}::hec242f1b136b5ff2
[INFO] [stderr]                                  at /rustc/72f88fc4e9458f89516a0b8b0868f3718aec5b47/library/std/src/panicking.rs:484
[INFO] [stderr]     12:     0x55ce8ab6e29c - std::sys_common::backtrace::__rust_end_short_backtrace::h1f3cc383ee6c0374
[INFO] [stderr]                                  at /rustc/72f88fc4e9458f89516a0b8b0868f3718aec5b47/library/std/src/sys_common/backtrace.rs:153
[INFO] [stderr]     13:     0x55ce8ab709c9 - rust_begin_unwind
[INFO] [stderr]                                  at /rustc/72f88fc4e9458f89516a0b8b0868f3718aec5b47/library/std/src/panicking.rs:483
[INFO] [stderr]     14:     0x55ce8ab7097b - std::panicking::begin_panic_fmt::hebfdcd945bbd27b1
[INFO] [stderr]                                  at /rustc/72f88fc4e9458f89516a0b8b0868f3718aec5b47/library/std/src/panicking.rs:437
[INFO] [stderr]     15:     0x55ce8a5b4cd7 - cmake::fail::h5ac34a445f962f17
[INFO] [stderr]                                  at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/cmake-0.1.44/src/lib.rs:885
[INFO] [stderr]     16:     0x55ce8a5b461c - cmake::run::hdae76e59475531dd
[INFO] [stderr]                                  at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/cmake-0.1.44/src/lib.rs:863
[INFO] [stderr]     17:     0x55ce8a5b0d8b - cmake::Config::build::h1f94ac9664857d70
[INFO] [stderr]                                  at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/cmake-0.1.44/src/lib.rs:769
[INFO] [stderr]     18:     0x55ce8a5aa4f9 - build_script_build::main::h9e1490990500ada3
[INFO] [stderr]                                  at /opt/rustwide/workdir/build.rs:15
[INFO] [stderr]     19:     0x55ce8a5abbdb - core::ops::function::FnOnce::call_once::h9d87b67fab79e12a
[INFO] [stderr]                                  at /rustc/72f88fc4e9458f89516a0b8b0868f3718aec5b47/library/core/src/ops/function.rs:227
[INFO] [stderr]     20:     0x55ce8a5abfde - std::sys_common::backtrace::__rust_begin_short_backtrace::h3530599536d9a237
[INFO] [stderr]                                  at /rustc/72f88fc4e9458f89516a0b8b0868f3718aec5b47/library/std/src/sys_common/backtrace.rs:137
[INFO] [stderr]     21:     0x55ce8a5ad181 - std::rt::lang_start::{{closure}}::h442f6dbe3a6debb4
[INFO] [stderr]                                  at /rustc/72f88fc4e9458f89516a0b8b0868f3718aec5b47/library/std/src/rt.rs:66
[INFO] [stderr]     22:     0x55ce8ab71231 - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::hecc21eb9018cc197
[INFO] [stderr]                                  at /rustc/72f88fc4e9458f89516a0b8b0868f3718aec5b47/library/core/src/ops/function.rs:259
[INFO] [stderr]     23:     0x55ce8ab71231 - std::panicking::try::do_call::h174ad655d084b5c7
[INFO] [stderr]                                  at /rustc/72f88fc4e9458f89516a0b8b0868f3718aec5b47/library/std/src/panicking.rs:381
[INFO] [stderr]     24:     0x55ce8ab71231 - std::panicking::try::h479e6054ce28de10
[INFO] [stderr]                                  at /rustc/72f88fc4e9458f89516a0b8b0868f3718aec5b47/library/std/src/panicking.rs:345
[INFO] [stderr]     25:     0x55ce8ab71231 - std::panic::catch_unwind::hb558ddea2b3e9c45
[INFO] [stderr]                                  at /rustc/72f88fc4e9458f89516a0b8b0868f3718aec5b47/library/std/src/panic.rs:382
[INFO] [stderr]     26:     0x55ce8ab71231 - std::rt::lang_start_internal::h163149047f0a8b61
[INFO] [stderr]                                  at /rustc/72f88fc4e9458f89516a0b8b0868f3718aec5b47/library/std/src/rt.rs:51
[INFO] [stderr]     27:     0x55ce8a5ad157 - std::rt::lang_start::h2d3d959e9528eb82
[INFO] [stderr]                                  at /rustc/72f88fc4e9458f89516a0b8b0868f3718aec5b47/library/std/src/rt.rs:65
[INFO] [stderr]     28:     0x55ce8a5ab0ea - main
[INFO] [stderr]     29:     0x7f7d381310b3 - __libc_start_main
[INFO] [stderr]     30:     0x55ce8a5aa0de - _start
[INFO] [stderr]     31:                0x0 - <unknown>
[INFO] running `Command { std: "docker" "inspect" "61766cc5fe6f1c0ac735771bc922d7a8dc6a8e3ff8f331f0ee363e28285473ef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "61766cc5fe6f1c0ac735771bc922d7a8dc6a8e3ff8f331f0ee363e28285473ef", kill_on_drop: false }`
[INFO] [stdout] 61766cc5fe6f1c0ac735771bc922d7a8dc6a8e3ff8f331f0ee363e28285473ef
