[INFO] updating cached repository https://github.com/ekuinox/rust-ffi-sample
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 0b1e709fe00385fe3ba1a7475103d4c37e119c50
[INFO] checking ekuinox/rust-ffi-sample against master#2748a9fd93dd1a00a4521f4f16de5befbf77f6cd for pr-62262-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fekuinox%2Frust-ffi-sample" "/workspace/builds/worker-0/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ekuinox/rust-ffi-sample on toolchain 2748a9fd93dd1a00a4521f4f16de5befbf77f6cd
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/ekuinox/rust-ffi-sample
[INFO] finished tweaking git repo https://github.com/ekuinox/rust-ffi-sample
[INFO] tweaked toml for git repo https://github.com/ekuinox/rust-ffi-sample written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/ekuinox/rust-ffi-sample already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] ce3e76f6db857d443cdc9130670e0f16b3f7714b20573b6f3a7eacae43970234
[INFO] running `"docker" "start" "-a" "ce3e76f6db857d443cdc9130670e0f16b3f7714b20573b6f3a7eacae43970234"`
[INFO] [stderr]    Compiling crossbeam-utils v0.6.6
[INFO] [stderr]    Compiling arrayvec v0.4.11
[INFO] [stderr]    Compiling memoffset v0.5.1
[INFO] [stderr]    Compiling crossbeam-epoch v0.7.2
[INFO] [stderr]    Compiling crossbeam-queue v0.1.2
[INFO] [stderr]    Compiling crossbeam-deque v0.6.3
[INFO] [stderr]    Compiling rayon-core v1.5.0
[INFO] [stderr]    Compiling rayon v1.1.0
[INFO] [stderr]    Compiling cc v1.0.38
[INFO] [stderr]    Compiling rust-ffi-sample v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: Using built-in specs.
[INFO] [stderr] warning: COLLECT_GCC=c++
[INFO] [stderr] warning: OFFLOAD_TARGET_NAMES=nvptx-none
[INFO] [stderr] warning: OFFLOAD_TARGET_DEFAULT=1
[INFO] [stderr] warning: Target: x86_64-linux-gnu
[INFO] [stderr] warning: Configured with: ../src/configure -v --with-pkgversion='Ubuntu 7.4.0-1ubuntu1~18.04.1' --with-bugurl=file:///usr/share/doc/gcc-7/README.Bugs --enable-languages=c,ada,c++,go,brig,d,fortran,objc,obj-c++ --prefix=/usr --with-gcc-major-version-only --program-suffix=-7 --program-prefix=x86_64-linux-gnu- --enable-shared --enable-linker-build-id --libexecdir=/usr/lib --without-included-gettext --enable-threads=posix --libdir=/usr/lib --enable-nls --with-sysroot=/ --enable-clocale=gnu --enable-libstdcxx-debug --enable-libstdcxx-time=yes --with-default-libstdcxx-abi=new --enable-gnu-unique-object --disable-vtable-verify --enable-libmpx --enable-plugin --enable-default-pie --with-system-zlib --with-target-system-zlib --enable-objc-gc=auto --enable-multiarch --disable-werror --with-arch-32=i686 --with-abi=m64 --with-multilib-list=m32,m64,mx32 --enable-multilib --with-tune=generic --enable-offload-targets=nvptx-none --without-cuda-driver --enable-checking=release --build=x86_64-linux-gnu --host=x86_64-linux-gnu --target=x86_64-linux-gnu
[INFO] [stderr] warning: Thread model: posix
[INFO] [stderr] warning: gcc version 7.4.0 (Ubuntu 7.4.0-1ubuntu1~18.04.1)
[INFO] [stderr] warning: COLLECT_GCC_OPTIONS='-O0' '-ffunction-sections' '-fdata-sections' '-fPIC' '-g' '-fno-omit-frame-pointer' '-m64' '-std=c++1z' '-Wall' '-Wextra' '-v' '-g' '-o' '/opt/rustwide/target/debug/build/rust-ffi-sample-60a282bb7bd816af/out/src/c++/foo.o' '-c' '-shared-libgcc' '-mtune=generic' '-march=x86-64'
[INFO] [stderr] warning:  /usr/lib/gcc/x86_64-linux-gnu/7/cc1plus -quiet -v -imultiarch x86_64-linux-gnu -D_GNU_SOURCE src/c++/foo.cpp -quiet -dumpbase foo.cpp -m64 -mtune=generic -march=x86-64 -auxbase-strip /opt/rustwide/target/debug/build/rust-ffi-sample-60a282bb7bd816af/out/src/c++/foo.o -g -g -O0 -Wall -Wextra -std=c++1z -version -ffunction-sections -fdata-sections -fPIC -fno-omit-frame-pointer -fstack-protector-strong -Wformat-security -o /tmp/ccQZZkdB.s
[INFO] [stderr] warning: GNU C++14 (Ubuntu 7.4.0-1ubuntu1~18.04.1) version 7.4.0 (x86_64-linux-gnu)
[INFO] [stderr] warning: 	compiled by GNU C version 7.4.0, GMP version 6.1.2, MPFR version 4.0.1, MPC version 1.1.0, isl version isl-0.19-GMP
[INFO] [stderr] warning: 
[INFO] [stderr] warning: GGC heuristics: --param ggc-min-expand=100 --param ggc-min-heapsize=131072
[INFO] [stderr] warning: ignoring duplicate directory "/usr/include/x86_64-linux-gnu/c++/7"
[INFO] [stderr] warning: ignoring nonexistent directory "/usr/local/include/x86_64-linux-gnu"
[INFO] [stderr] warning: ignoring nonexistent directory "/usr/lib/gcc/x86_64-linux-gnu/7/../../../../x86_64-linux-gnu/include"
[INFO] [stderr] warning: #include "..." search starts here:
[INFO] [stderr] warning: #include <...> search starts here:
[INFO] [stderr] warning:  /usr/include/c++/7
[INFO] [stderr] warning:  /usr/include/x86_64-linux-gnu/c++/7
[INFO] [stderr] warning:  /usr/include/c++/7/backward
[INFO] [stderr] warning:  /usr/lib/gcc/x86_64-linux-gnu/7/include
[INFO] [stderr] warning:  /usr/local/include
[INFO] [stderr] warning:  /usr/lib/gcc/x86_64-linux-gnu/7/include-fixed
[INFO] [stderr] warning:  /usr/include/x86_64-linux-gnu
[INFO] [stderr] warning:  /usr/include
[INFO] [stderr] warning: End of search list.
[INFO] [stderr] warning: GNU C++14 (Ubuntu 7.4.0-1ubuntu1~18.04.1) version 7.4.0 (x86_64-linux-gnu)
[INFO] [stderr] warning: 	compiled by GNU C version 7.4.0, GMP version 6.1.2, MPFR version 4.0.1, MPC version 1.1.0, isl version isl-0.19-GMP
[INFO] [stderr] warning: 
[INFO] [stderr] warning: GGC heuristics: --param ggc-min-expand=100 --param ggc-min-heapsize=131072
[INFO] [stderr] warning: Compiler executable checksum: 38816e3807cdcb3c59571e251bd6c090
[INFO] [stderr] warning: COLLECT_GCC_OPTIONS='-O0' '-ffunction-sections' '-fdata-sections' '-fPIC' '-g' '-fno-omit-frame-pointer' '-m64' '-std=c++1z' '-Wall' '-Wextra' '-v' '-g' '-o' '/opt/rustwide/target/debug/build/rust-ffi-sample-60a282bb7bd816af/out/src/c++/foo.o' '-c' '-shared-libgcc' '-mtune=generic' '-march=x86-64'
[INFO] [stderr] warning:  as -v --64 -o /opt/rustwide/target/debug/build/rust-ffi-sample-60a282bb7bd816af/out/src/c++/foo.o /tmp/ccQZZkdB.s
[INFO] [stderr] warning: GNU assembler version 2.30 (x86_64-linux-gnu) using BFD version (GNU Binutils for Ubuntu) 2.30
[INFO] [stderr] warning: COMPILER_PATH=/usr/lib/gcc/x86_64-linux-gnu/7/:/usr/lib/gcc/x86_64-linux-gnu/7/:/usr/lib/gcc/x86_64-linux-gnu/:/usr/lib/gcc/x86_64-linux-gnu/7/:/usr/lib/gcc/x86_64-linux-gnu/
[INFO] [stderr] warning: LIBRARY_PATH=/usr/lib/gcc/x86_64-linux-gnu/7/:/usr/lib/gcc/x86_64-linux-gnu/7/../../../x86_64-linux-gnu/:/usr/lib/gcc/x86_64-linux-gnu/7/../../../../lib/:/lib/x86_64-linux-gnu/:/lib/../lib/:/usr/lib/x86_64-linux-gnu/:/usr/lib/../lib/:/usr/lib/gcc/x86_64-linux-gnu/7/../../../:/lib/:/usr/lib/
[INFO] [stderr] warning: COLLECT_GCC_OPTIONS='-O0' '-ffunction-sections' '-fdata-sections' '-fPIC' '-g' '-fno-omit-frame-pointer' '-m64' '-std=c++1z' '-Wall' '-Wextra' '-v' '-g' '-o' '/opt/rustwide/target/debug/build/rust-ffi-sample-60a282bb7bd816af/out/src/c++/foo.o' '-c' '-shared-libgcc' '-mtune=generic' '-march=x86-64'
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 24.57s
[INFO] running `"docker" "inspect" "ce3e76f6db857d443cdc9130670e0f16b3f7714b20573b6f3a7eacae43970234"`
[INFO] running `"docker" "rm" "-f" "ce3e76f6db857d443cdc9130670e0f16b3f7714b20573b6f3a7eacae43970234"`
[INFO] [stdout] ce3e76f6db857d443cdc9130670e0f16b3f7714b20573b6f3a7eacae43970234