[INFO] fetching crate vowpalwabbit-sys 8.8.1+vw-v8.8.0...
[INFO] building vowpalwabbit-sys-8.8.1+vw-v8.8.0 against master#ff34b919075f35a1787659e9c448a34b06bab8de for issue-85264
[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 ff34b919075f35a1787659e9c448a34b06bab8de
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ff34b919075f35a1787659e9c448a34b06bab8de" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", 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" "+ff34b919075f35a1787659e9c448a34b06bab8de" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ff34b919075f35a1787659e9c448a34b06bab8de" "fetch" "--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ff34b919075f35a1787659e9c448a34b06bab8de" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5dabccd36ac6bf765b19764b29a2431ffe73afb059e3363155442cec9d309f32
[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" "5dabccd36ac6bf765b19764b29a2431ffe73afb059e3363155442cec9d309f32", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5dabccd36ac6bf765b19764b29a2431ffe73afb059e3363155442cec9d309f32", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5dabccd36ac6bf765b19764b29a2431ffe73afb059e3363155442cec9d309f32", kill_on_drop: false }`
[INFO] [stdout] 5dabccd36ac6bf765b19764b29a2431ffe73afb059e3363155442cec9d309f32
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ff34b919075f35a1787659e9c448a34b06bab8de" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f1910e7285c9e270ab03dfed7ab164a43d94905978bad0a1b34b38e8e6345c29
[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" "f1910e7285c9e270ab03dfed7ab164a43d94905978bad0a1b34b38e8e6345c29", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.95
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]    Compiling cc v1.0.68
[INFO] [stderr]    Compiling proc-macro2 v1.0.27
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]    Compiling quick-error v1.2.3
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling bindgen v0.52.0
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling nom v4.2.3
[INFO] [stderr]    Compiling clang-sys v0.28.1
[INFO] [stderr]    Compiling humantime v1.3.0
[INFO] [stderr]    Compiling cmake v0.1.45
[INFO] [stderr]    Compiling aho-corasick v0.7.18
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling which v3.1.1
[INFO] [stderr]    Compiling libloading v0.5.2
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling cexpr v0.3.6
[INFO] [stderr]    Compiling regex v1.5.4
[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-72af194f73772fcf/build-script-build` (exit status: 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-29800f7d8b14d4df/out/lib" "-DCMAKE_LIBRARY_OUTPUT_DIRECTORY=/opt/rustwide/target/debug/build/vowpalwabbit-sys-29800f7d8b14d4df/out/lib" "-DCMAKE_RUNTIME_OUTPUT_DIRECTORY=/opt/rustwide/target/debug/build/vowpalwabbit-sys-29800f7d8b14d4df/out/bin" "-DCMAKE_INSTALL_PREFIX=/opt/rustwide/target/debug/build/vowpalwabbit-sys-29800f7d8b14d4df/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: 32
[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-29800f7d8b14d4df/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]   [  1%] Building CXX object vowpalwabbit/CMakeFiles/allreduce.dir/allreduce_sockets.cc.o
[INFO] [stderr]   [  3%] Building C object external/zlib/CMakeFiles/zlib.dir/compress.o
[INFO] [stderr]   [  3%] Building C object external/zlib/CMakeFiles/zlib.dir/crc32.o
[INFO] [stderr]   [  3%] Building C object external/zlib/CMakeFiles/zlib.dir/adler32.o
[INFO] [stderr]   [  3%] Building C object external/zlib/CMakeFiles/zlib.dir/gzclose.o
[INFO] [stderr]   [  5%] Building CXX object vowpalwabbit/CMakeFiles/allreduce.dir/allreduce_threads.cc.o
[INFO] [stderr]   [  5%] Building CXX object vowpalwabbit/CMakeFiles/allreduce.dir/vw_exception.cc.o
[INFO] [stderr]   [  5%] Building C object external/zlib/CMakeFiles/zlib.dir/gzlib.o
[INFO] [stderr]   [  9%] Building C object external/zlib/CMakeFiles/zlib.dir/gzread.o
[INFO] [stderr]   [  9%] Building C object external/zlib/CMakeFiles/zlib.dir/deflate.o
[INFO] [stderr]   [  7%] Building C object external/zlib/CMakeFiles/zlib.dir/gzwrite.o
[INFO] [stderr]   [  9%] Building C object external/zlib/CMakeFiles/zlib.dir/inflate.o
[INFO] [stderr]   [ 11%] Building C object external/zlib/CMakeFiles/zlib.dir/infback.o
[INFO] [stderr]   [ 13%] Building C object external/zlib/CMakeFiles/zlib.dir/zutil.o
[INFO] [stderr]   [ 13%] Building C object external/zlib/CMakeFiles/zlib.dir/uncompr.o
[INFO] [stderr]   [ 13%] Building C object external/zlib/CMakeFiles/zlib.dir/inftrees.o
[INFO] [stderr]   [ 15%] Building C object external/zlib/CMakeFiles/zlib.dir/inffast.o
[INFO] [stderr]   [ 15%] Building C object external/zlib/CMakeFiles/zlib.dir/trees.o
[INFO] [stderr]   Scanning dependencies of target Boost_program_options
[INFO] [stderr]   [ 15%] Linking C shared library /opt/rustwide/target/debug/build/vowpalwabbit-sys-29800f7d8b14d4df/out/lib/libz.so
[INFO] [stderr]   [ 15%] 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/config_file.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]   [ 19%] 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/value_semantic.cpp.o
[INFO] [stderr]   [ 19%] Building CXX object external/boost-cmake/CMakeFiles/Boost_program_options.dir/__/boost/libs/program_options/src/utf8_codecvt_facet.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]   [ 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/split.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%] Built target zlib
[INFO] [stderr]   [ 23%] Linking CXX static library /opt/rustwide/target/debug/build/vowpalwabbit-sys-29800f7d8b14d4df/out/lib/liballreduce.a
[INFO] [stderr]   [ 23%] Built target allreduce
[INFO] [stderr]   [ 25%] Linking CXX static library /opt/rustwide/target/debug/build/vowpalwabbit-sys-29800f7d8b14d4df/out/lib/libboost_program_options.a
[INFO] [stderr]   [ 25%] Built target Boost_program_options
[INFO] [stderr]   Scanning dependencies of target vw
[INFO] [stderr]   [ 25%] 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]   [ 31%] Building CXX object vowpalwabbit/CMakeFiles/vw.dir/best_constant.cc.o
[INFO] [stderr]   [ 31%] Building CXX object vowpalwabbit/CMakeFiles/vw.dir/baseline.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]   [ 37%] Building CXX object vowpalwabbit/CMakeFiles/vw.dir/cb_algs.cc.o
[INFO] [stderr]   [ 37%] Building CXX object vowpalwabbit/CMakeFiles/vw.dir/cb_adf.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]   [ 37%] Building CXX object vowpalwabbit/CMakeFiles/vw.dir/cb_explore_adf_greedy.cc.o
[INFO] [stderr]   [ 39%] Building CXX object vowpalwabbit/CMakeFiles/vw.dir/cb_explore_adf_regcb.cc.o
[INFO] [stderr]   [ 39%] Building CXX object vowpalwabbit/CMakeFiles/vw.dir/cb_explore_adf_softmax.cc.o
[INFO] [stderr]   [ 41%] Building CXX object vowpalwabbit/CMakeFiles/vw.dir/cb_sample.cc.o
[INFO] [stderr]   [ 41%] Building CXX object vowpalwabbit/CMakeFiles/vw.dir/cb_explore.cc.o
[INFO] [stderr]   [ 43%] Building CXX object vowpalwabbit/CMakeFiles/vw.dir/cb_explore_adf_first.cc.o
[INFO] [stderr]   [ 43%] Building CXX object vowpalwabbit/CMakeFiles/vw.dir/cb.cc.o
[INFO] [stderr]   [ 45%] Building CXX object vowpalwabbit/CMakeFiles/vw.dir/cbify.cc.o
[INFO] [stderr]   [ 45%] Building CXX object vowpalwabbit/CMakeFiles/vw.dir/classweight.cc.o
[INFO] [stderr]   [ 47%] Building CXX object vowpalwabbit/CMakeFiles/vw.dir/comp_io.cc.o
[INFO] [stderr]   [ 47%] Building CXX object vowpalwabbit/CMakeFiles/vw.dir/ccb_label.cc.o
[INFO] [stderr]   [ 47%] Building CXX object vowpalwabbit/CMakeFiles/vw.dir/conditional_contextual_bandit.cc.o
[INFO] [stderr]   [ 49%] Building CXX object vowpalwabbit/CMakeFiles/vw.dir/confidence.cc.o
[INFO] [stderr]   [ 49%] Building CXX object vowpalwabbit/CMakeFiles/vw.dir/cost_sensitive.cc.o
[INFO] [stderr]   [ 49%] Building CXX object vowpalwabbit/CMakeFiles/vw.dir/cs_active.cc.o
[INFO] [stderr]   [ 50%] Building CXX object vowpalwabbit/CMakeFiles/vw.dir/csoaa.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]   c++: fatal error: Killed signal terminated program cc1plus
[INFO] [stderr]   compilation terminated.
[INFO] [stderr]   make[3]: *** [vowpalwabbit/CMakeFiles/vw.dir/build.make:63: vowpalwabbit/CMakeFiles/vw.dir/accumulate.cc.o] Error 1
[INFO] [stderr]   make[3]: *** Waiting for unfinished jobs....
[INFO] [stderr]   c++: fatal error: Killed signal terminated program cc1plus
[INFO] [stderr]   compilation terminated.
[INFO] [stderr]   c++: fatal error: Killed signal terminated program cc1plus
[INFO] [stderr]   compilation terminated.
[INFO] [stderr]   make[3]: *** [vowpalwabbit/CMakeFiles/vw.dir/build.make:284: vowpalwabbit/CMakeFiles/vw.dir/cb_explore_adf_first.cc.o] Error 1
[INFO] [stderr]   make[3]: *** [vowpalwabbit/CMakeFiles/vw.dir/build.make:128: vowpalwabbit/CMakeFiles/vw.dir/autolink.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:219: vowpalwabbit/CMakeFiles/vw.dir/cache.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:89: vowpalwabbit/CMakeFiles/vw.dir/active_cover.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:102: vowpalwabbit/CMakeFiles/vw.dir/active.cc.o] Error 1
[INFO] [stderr]   c++: fatal error: Killed signal terminated program cc1plus
[INFO] [stderr]   compilation terminated.
[INFO] [stderr]   c++: fatal error: Killed signal terminated program cc1plus
[INFO] [stderr]   compilation terminated.
[INFO] [stderr]   make[3]: *** [vowpalwabbit/CMakeFiles/vw.dir/build.make:76: vowpalwabbit/CMakeFiles/vw.dir/action_score.cc.o] Error 1
[INFO] [stderr]   make[3]: *** [vowpalwabbit/CMakeFiles/vw.dir/build.make:453: vowpalwabbit/CMakeFiles/vw.dir/cost_sensitive.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:141: vowpalwabbit/CMakeFiles/vw.dir/baseline.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:336: vowpalwabbit/CMakeFiles/vw.dir/cb_explore.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:362: vowpalwabbit/CMakeFiles/vw.dir/cb.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:323: vowpalwabbit/CMakeFiles/vw.dir/cb_explore_adf_softmax.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:271: vowpalwabbit/CMakeFiles/vw.dir/cb_explore_adf_cover.cc.o] Error 1
[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]   c++: fatal error: Killed signal terminated program cc1plus
[INFO] [stderr]   compilation terminated.
[INFO] [stderr]   make[3]: *** [vowpalwabbit/CMakeFiles/vw.dir/build.make:349: vowpalwabbit/CMakeFiles/vw.dir/cb_sample.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:245: vowpalwabbit/CMakeFiles/vw.dir/cb_algs.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:154: vowpalwabbit/CMakeFiles/vw.dir/best_constant.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:297: vowpalwabbit/CMakeFiles/vw.dir/cb_explore_adf_greedy.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:310: vowpalwabbit/CMakeFiles/vw.dir/cb_explore_adf_regcb.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:193: vowpalwabbit/CMakeFiles/vw.dir/boosting.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:427: vowpalwabbit/CMakeFiles/vw.dir/conditional_contextual_bandit.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:401: vowpalwabbit/CMakeFiles/vw.dir/classweight.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:115: vowpalwabbit/CMakeFiles/vw.dir/audit_regressor.cc.o] Error 1
[INFO] [stderr]   In file included from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/conditional_contextual_bandit.h:7,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/ccb_label.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/conditional_contextual_bandit.h:7,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/ccb_label.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/conditional_contextual_bandit.h:7,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/ccb_label.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/conditional_contextual_bandit.h:7,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/ccb_label.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/conditional_contextual_bandit.h:7,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/ccb_label.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/reductions.h:11,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/ccb_label.cc:2:
[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/conditional_contextual_bandit.h:7,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/ccb_label.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/reductions.h:11,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/ccb_label.cc:2:
[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/conditional_contextual_bandit.h:7,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/ccb_label.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/reductions.h:11,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/ccb_label.cc:2:
[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/reductions.h:12,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/ccb_label.cc:2:
[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/ccb_label.cc:2:
[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_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]   c++: fatal error: Killed signal terminated program cc1plus
[INFO] [stderr]   compilation terminated.
[INFO] [stderr]   make[3]: *** [vowpalwabbit/CMakeFiles/vw.dir/build.make:388: vowpalwabbit/CMakeFiles/vw.dir/ccb_label.cc.o] Error 1
[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/csoaa.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 = CSOAA::csoaa; E = example]':
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/csoaa.cc:134:38:   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&, CSOAA::csoaa&, example&)' to 'LEARNER::learner<CSOAA::csoaa, 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_finish_example(void (*)(vw&, T&, E&)) [with T = CSOAA::ldf; E = std::vector<example*>]':
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/csoaa.cc:884:48:   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&, CSOAA::ldf&, std::vector<example*>&)' to 'LEARNER::learner<CSOAA::ldf, std::vector<example*> >::end_fptr_type' {aka 'void (*)(vw&, void*, void*)'} [-Wcast-function-type]
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/learner.h: In instantiation of 'void LEARNER::learner<T, E>::set_end_pass(void (*)(T&)) [with T = CSOAA::ldf; E = std::vector<example*>]':
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/csoaa.cc:885:26:   required from here
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/learner.h:286:92: warning: cast between incompatible function types from 'void (*)(CSOAA::ldf&)' to 'LEARNER::func_data::fn' {aka 'void (*)(void*)'} [-Wcast-function-type]
[INFO] [stderr]     286 |   void set_end_pass(void (*f)(T&)) { end_pass_fd = tuple_dbf(learn_fd.data, learn_fd.base, (func_data::fn)f); }
[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/csoaa.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/csoaa.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/csoaa.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/csoaa.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/csoaa.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/csoaa.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/csoaa.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/csoaa.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/csoaa.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/csoaa.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/csoaa.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, example>; T = CSOAA::csoaa; 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 = CSOAA::csoaa; E = example; L = LEARNER::learner<char, example>; free_ptr<T> = std::unique_ptr<CSOAA::csoaa, void (*)(void*)>; size_t = long unsigned int]'
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/csoaa.cc:130:75:   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 (*)(CSOAA::csoaa&, 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 (*)(CSOAA::csoaa&, 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 (*)(CSOAA::csoaa&, 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/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/csoaa.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 = v_hashmap<long unsigned int, features>::hash_elem; size_t = long unsigned int]':
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/v_hashmap.h:58:5:   required from 'void v_hashmap<K, V>::init(size_t, const V&, bool (*)(const K&, const K&)) [with K = long unsigned int; V = features; size_t = long unsigned int]'
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/csoaa.cc:870:56:   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 v_hashmap<long unsigned int, features>::hash_elem'; 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/global_data.h:39,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/reductions.h:14,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/csoaa.cc:10:
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/v_hashmap.h:17:10: note: 'struct v_hashmap<long unsigned int, features>::hash_elem' declared here
[INFO] [stderr]      17 |   struct hash_elem
[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/csoaa.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, example>; T = CSOAA::ldf; 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 = CSOAA::ldf; E = std::vector<example*>; L = LEARNER::learner<char, example>; free_ptr<T> = std::unique_ptr<CSOAA::ldf, void (*)(void*)>; size_t = long unsigned int]'
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/csoaa.cc:883:46:   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 (*)(CSOAA::ldf&, LEARNER::learner<char, 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 (*)(CSOAA::ldf&, LEARNER::learner<char, 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 (*)(CSOAA::ldf&, LEARNER::learner<char, 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/csoaa.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/csoaa.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]   In file included from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/reductions.h:13,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/cs_active.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 = cs_active; E = example]':
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/cs_active.cc:376:38:   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&, cs_active&, example&)' to 'LEARNER::learner<cs_active, 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/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/cs_active.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/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/cs_active.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/cs_active.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/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/cs_active.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/cs_active.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/reductions.h:11,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/cs_active.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/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/cs_active.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/reductions.h:11,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/cs_active.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/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/cs_active.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/reductions.h:11,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/cs_active.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/reductions.h:13,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/cs_active.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 = cs_active; 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 = cs_active; E = example; L = LEARNER::learner<char, example>; free_ptr<T> = std::unique_ptr<cs_active, void (*)(void*)>; size_t = long unsigned int]'
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/cs_active.cc:372:91:   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 (*)(cs_active&, 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 (*)(cs_active&, 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 (*)(cs_active&, 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/cs_active.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/reductions.h:11,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/cs_active.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:258: vowpalwabbit/CMakeFiles/vw.dir/cb_explore_adf_bag.cc.o] Error 1
[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/cs_active.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 = lq_data; 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 = lq_data]'
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/cs_active.cc:231:32:   required from 'void predict_or_learn(cs_active&, LEARNER::single_learner&, example&) [with bool is_learn = true; bool is_simulation = true; LEARNER::single_learner = LEARNER::learner<char, example>]'
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/cs_active.cc:372:91:   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 type 'struct lq_data' with no trivial copy-assignment [-Wclass-memaccess]
[INFO] [stderr]      82 |         memset(_begin + old_len, 0, (length - old_len) * sizeof(T));
[INFO] [stderr]         |         ~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/cs_active.cc:20:8: note: 'struct lq_data' declared here
[INFO] [stderr]      20 | struct lq_data
[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/cbify.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 = cbify; E = std::vector<example*>]':
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/cbify.cc:493:48:   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&, cbify&, std::vector<example*>&)' to 'LEARNER::learner<cbify, 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/reductions.h:13,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/confidence.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 = confidence; E = example]':
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/confidence.cc:128:49:   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&, confidence&, example&)' to 'LEARNER::learner<confidence, 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/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/cbify.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/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/cbify.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/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/cbify.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/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/cbify.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/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/cbify.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/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/confidence.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 /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/cbify.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 /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/confidence.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/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/cbify.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/reductions.h:11,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/cbify.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/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/confidence.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/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/confidence.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/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/confidence.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/reductions.h:11,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/confidence.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/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/cbify.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/reductions.h:11,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/cbify.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/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/confidence.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/reductions.h:11,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/confidence.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/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/confidence.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/reductions.h:11,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/confidence.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/reductions.h:13,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/confidence.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, example>; T = confidence; 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 = confidence; E = example; L = LEARNER::learner<char, example>; free_ptr<T> = std::unique_ptr<confidence, void (*)(void*)>]'
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/confidence.cc:126:108:   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 (*)(confidence&, 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 (*)(confidence&, 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 (*)(confidence&, 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/cbify.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 = cbify; E = example; size_t = long unsigned int]':
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/learner.h:454:49:   required from 'LEARNER::learner<T, E>& LEARNER::init_cost_sensitive_learner(free_ptr<T>&, L*, void (*)(T&, L&, E&), void (*)(T&, L&, E&), parser*, size_t, prediction_type::prediction_type_t) [with T = cbify; E = example; L = LEARNER::learner<char, std::vector<example*> >; free_ptr<T> = std::unique_ptr<cbify, void (*)(void*)>; size_t = long unsigned int]'
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/cbify.cc:437:100:   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 (*)(cbify&, LEARNER::learner<char, std::vector<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 (*)(cbify&, LEARNER::learner<char, std::vector<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 (*)(cbify&, LEARNER::learner<char, std::vector<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]   /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 = cbify; E = example]':
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/learner.h:456:3:   required from 'LEARNER::learner<T, E>& LEARNER::init_cost_sensitive_learner(free_ptr<T>&, L*, void (*)(T&, L&, E&), void (*)(T&, L&, E&), parser*, size_t, prediction_type::prediction_type_t) [with T = cbify; E = example; L = LEARNER::learner<char, std::vector<example*> >; free_ptr<T> = std::unique_ptr<cbify, void (*)(void*)>; size_t = long unsigned int]'
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/cbify.cc:437:100:   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&, cbify&, example&)' to 'LEARNER::learner<cbify, 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 '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 = cbify; E = example; size_t = long unsigned int]':
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/learner.h:454:49:   required from 'LEARNER::learner<T, E>& LEARNER::init_cost_sensitive_learner(free_ptr<T>&, L*, void (*)(T&, L&, E&), void (*)(T&, L&, E&), parser*, size_t, prediction_type::prediction_type_t) [with T = cbify; E = example; L = LEARNER::learner<char, example>; free_ptr<T> = std::unique_ptr<cbify, void (*)(void*)>; size_t = long unsigned int]'
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/cbify.cc:447:92:   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 (*)(cbify&, 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 (*)(cbify&, 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 (*)(cbify&, 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]   /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 = cbify; 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 = cbify; E = std::vector<example*>; L = LEARNER::learner<char, std::vector<example*> >; free_ptr<T> = std::unique_ptr<cbify, void (*)(void*)>; size_t = long unsigned int]'
[INFO] [stderr]   /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/cbify.cc:491:110:   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 (*)(cbify&, 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 (*)(cbify&, 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 (*)(cbify&, 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/cbify.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/reductions.h:11,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/cbify.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/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/confidence.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/reductions.h:11,
[INFO] [stderr]                    from /opt/rustwide/workdir/external/vowpal_wabbit/vowpalwabbit/confidence.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/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/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/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/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:479: vowpalwabbit/CMakeFiles/vw.dir/csoaa.cc.o] Error 1
[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 status: 2
[INFO] [stderr] 
[INFO] [stderr]   build script failed, must exit now', /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/cmake-0.1.45/src/lib.rs:894:5
[INFO] [stderr]   stack backtrace:
[INFO] [stderr]      0:     0x5639f30ffe70 - std::backtrace_rs::backtrace::libunwind::trace::hdcf4f90f85129e83
[INFO] [stderr]                                  at /rustc/ff34b919075f35a1787659e9c448a34b06bab8de/library/std/src/../../backtrace/src/backtrace/libunwind.rs:90:5
[INFO] [stderr]      1:     0x5639f30ffe70 - std::backtrace_rs::backtrace::trace_unsynchronized::h2669e30cb82f6732
[INFO] [stderr]                                  at /rustc/ff34b919075f35a1787659e9c448a34b06bab8de/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stderr]      2:     0x5639f30ffe70 - std::sys_common::backtrace::_print_fmt::hfbda19e17f6db318
[INFO] [stderr]                                  at /rustc/ff34b919075f35a1787659e9c448a34b06bab8de/library/std/src/sys_common/backtrace.rs:67:5
[INFO] [stderr]      3:     0x5639f30ffe70 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h1a8751bf59281272
[INFO] [stderr]                                  at /rustc/ff34b919075f35a1787659e9c448a34b06bab8de/library/std/src/sys_common/backtrace.rs:46:22
[INFO] [stderr]      4:     0x5639f31260af - core::fmt::write::h7aa6cd0067dca82a
[INFO] [stderr]                                  at /rustc/ff34b919075f35a1787659e9c448a34b06bab8de/library/core/src/fmt/mod.rs:1094:17
[INFO] [stderr]      5:     0x5639f30fc875 - std::io::Write::write_fmt::hd7dd3a1df9b6befb
[INFO] [stderr]                                  at /rustc/ff34b919075f35a1787659e9c448a34b06bab8de/library/std/src/io/mod.rs:1584:15
[INFO] [stderr]      6:     0x5639f31025db - std::sys_common::backtrace::_print::h551e9ec8a9fa8106
[INFO] [stderr]                                  at /rustc/ff34b919075f35a1787659e9c448a34b06bab8de/library/std/src/sys_common/backtrace.rs:49:5
[INFO] [stderr]      7:     0x5639f31025db - std::sys_common::backtrace::print::ha4b1c5e95fa040b3
[INFO] [stderr]                                  at /rustc/ff34b919075f35a1787659e9c448a34b06bab8de/library/std/src/sys_common/backtrace.rs:36:9
[INFO] [stderr]      8:     0x5639f31025db - std::panicking::default_hook::{{closure}}::h0b34c9ab7fb9f857
[INFO] [stderr]                                  at /rustc/ff34b919075f35a1787659e9c448a34b06bab8de/library/std/src/panicking.rs:208:50
[INFO] [stderr]      9:     0x5639f31020bd - std::panicking::default_hook::h3067e8318decd17a
[INFO] [stderr]                                  at /rustc/ff34b919075f35a1787659e9c448a34b06bab8de/library/std/src/panicking.rs:225:9
[INFO] [stderr]     10:     0x5639f3102b8d - std::panicking::rust_panic_with_hook::h81b8facc50f34daa
[INFO] [stderr]                                  at /rustc/ff34b919075f35a1787659e9c448a34b06bab8de/library/std/src/panicking.rs:591:17
[INFO] [stderr]     11:     0x5639f3102787 - std::panicking::begin_panic_handler::{{closure}}::ha376ab85d95a000e
[INFO] [stderr]                                  at /rustc/ff34b919075f35a1787659e9c448a34b06bab8de/library/std/src/panicking.rs:497:13
[INFO] [stderr]     12:     0x5639f310032c - std::sys_common::backtrace::__rust_end_short_backtrace::h6795c8afdd1a77e6
[INFO] [stderr]                                  at /rustc/ff34b919075f35a1787659e9c448a34b06bab8de/library/std/src/sys_common/backtrace.rs:141:18
[INFO] [stderr]     13:     0x5639f31026e9 - rust_begin_unwind
[INFO] [stderr]                                  at /rustc/ff34b919075f35a1787659e9c448a34b06bab8de/library/std/src/panicking.rs:493:5
[INFO] [stderr]     14:     0x5639f2ba0bab - std::panicking::begin_panic_fmt::hf43a0025042538e2
[INFO] [stderr]                                  at /rustc/ff34b919075f35a1787659e9c448a34b06bab8de/library/std/src/panicking.rs:435:5
[INFO] [stderr]     15:     0x5639f2bad043 - cmake::fail::h2ddf44b1720abb19
[INFO] [stderr]                                  at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/cmake-0.1.45/src/lib.rs:894:5
[INFO] [stderr]     16:     0x5639f2bac9a2 - cmake::run::hb7c356f0ec84c091
[INFO] [stderr]                                  at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/cmake-0.1.45/src/lib.rs:872:9
[INFO] [stderr]     17:     0x5639f2ba989b - cmake::Config::build::hd786327d906d1c61
[INFO] [stderr]                                  at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/cmake-0.1.45/src/lib.rs:778:9
[INFO] [stderr]     18:     0x5639f2ba23cf - build_script_build::main::h9c74ac17389f2f9c
[INFO] [stderr]                                  at /opt/rustwide/workdir/build.rs:15:15
[INFO] [stderr]     19:     0x5639f2ba3cbb - core::ops::function::FnOnce::call_once::hef15ff0175d8284a
[INFO] [stderr]                                  at /rustc/ff34b919075f35a1787659e9c448a34b06bab8de/library/core/src/ops/function.rs:227:5
[INFO] [stderr]     20:     0x5639f2ba3bde - std::sys_common::backtrace::__rust_begin_short_backtrace::h09ef67d836d498a8
[INFO] [stderr]                                  at /rustc/ff34b919075f35a1787659e9c448a34b06bab8de/library/std/src/sys_common/backtrace.rs:125:18
[INFO] [stderr]     21:     0x5639f2ba39d1 - std::rt::lang_start::{{closure}}::hb45999b421afcbe4
[INFO] [stderr]                                  at /rustc/ff34b919075f35a1787659e9c448a34b06bab8de/library/std/src/rt.rs:49:18
[INFO] [stderr]     22:     0x5639f3102f8a - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::h3b8c329143d7638a
[INFO] [stderr]                                  at /rustc/ff34b919075f35a1787659e9c448a34b06bab8de/library/core/src/ops/function.rs:259:13
[INFO] [stderr]     23:     0x5639f3102f8a - std::panicking::try::do_call::h4b72c261b4eefc1b
[INFO] [stderr]                                  at /rustc/ff34b919075f35a1787659e9c448a34b06bab8de/library/std/src/panicking.rs:379:40
[INFO] [stderr]     24:     0x5639f3102f8a - std::panicking::try::h703d31b7896cbd49
[INFO] [stderr]                                  at /rustc/ff34b919075f35a1787659e9c448a34b06bab8de/library/std/src/panicking.rs:343:19
[INFO] [stderr]     25:     0x5639f3102f8a - std::panic::catch_unwind::h37cad9b35388a915
[INFO] [stderr]                                  at /rustc/ff34b919075f35a1787659e9c448a34b06bab8de/library/std/src/panic.rs:431:14
[INFO] [stderr]     26:     0x5639f3102f8a - std::rt::lang_start_internal::hab5a8a909af4f90e
[INFO] [stderr]                                  at /rustc/ff34b919075f35a1787659e9c448a34b06bab8de/library/std/src/rt.rs:34:21
[INFO] [stderr]     27:     0x5639f2ba39b0 - std::rt::lang_start::h519fbb88a3bea2cf
[INFO] [stderr]                                  at /rustc/ff34b919075f35a1787659e9c448a34b06bab8de/library/std/src/rt.rs:48:5
[INFO] [stderr]     28:     0x5639f2ba2fec - main
[INFO] [stderr]     29:     0x7f8c73faf0b3 - __libc_start_main
[INFO] [stderr]     30:     0x5639f2ba1fbe - _start
[INFO] [stderr]     31:                0x0 - <unknown>
[INFO] running `Command { std: "docker" "inspect" "f1910e7285c9e270ab03dfed7ab164a43d94905978bad0a1b34b38e8e6345c29", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f1910e7285c9e270ab03dfed7ab164a43d94905978bad0a1b34b38e8e6345c29", kill_on_drop: false }`
[INFO] [stdout] f1910e7285c9e270ab03dfed7ab164a43d94905978bad0a1b34b38e8e6345c29
