[INFO] updating cached repository https://github.com/danielpclark/bench_ruby_ffi_example [INFO] running `Command { std: "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", kill_on_drop: false }` [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 2f8fae8311f8d69695d428e538201c98ba2c67c2 [INFO] testing danielpclark/bench_ruby_ffi_example against master#8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e for pr-74409 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdanielpclark%2Fbench_ruby_ffi_example" "/workspace/builds/worker-1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/danielpclark/bench_ruby_ffi_example on toolchain 8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/danielpclark/bench_ruby_ffi_example [INFO] finished tweaking git repo https://github.com/danielpclark/bench_ruby_ffi_example [INFO] tweaked toml for git repo https://github.com/danielpclark/bench_ruby_ffi_example written to /workspace/builds/worker-1/source/Cargo.toml [INFO] crate git repo https://github.com/danielpclark/bench_ruby_ffi_example already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 6c7439154b21ee66ed054177d7aa21b98ace4a27beddf916ab7b060b42df33ff [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" "6c7439154b21ee66ed054177d7aa21b98ace4a27beddf916ab7b060b42df33ff", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "6c7439154b21ee66ed054177d7aa21b98ace4a27beddf916ab7b060b42df33ff", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "6c7439154b21ee66ed054177d7aa21b98ace4a27beddf916ab7b060b42df33ff", kill_on_drop: false }` [INFO] [stdout] 6c7439154b21ee66ed054177d7aa21b98ace4a27beddf916ab7b060b42df33ff [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 9b6c57c54d40714709b18432807cb42f2392b87fd26804480ecc506bdfcd6298 [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" "9b6c57c54d40714709b18432807cb42f2392b87fd26804480ecc506bdfcd6298", kill_on_drop: false }` [INFO] [stderr] Compiling ruby-sys v0.2.20 [INFO] [stderr] Compiling libc v0.2.33 [INFO] [stderr] Compiling lazy_static v0.2.9 [INFO] [stderr] Compiling array_tool v0.4.1 [INFO] [stderr] Compiling ruru v0.9.3 [INFO] [stderr] Compiling ffi_example v0.0.1 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `self::array_tool::string::Squeeze` [INFO] [stdout] --> src/lib.rs:11:7 [INFO] [stdout] | [INFO] [stdout] 11 | use self::array_tool::string::Squeeze; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: `extern` fn uses type `RuruExample`, which is not FFI-safe [INFO] [stdout] --> src/lib.rs:95:3 [INFO] [stdout] | [INFO] [stdout] 95 | RuruExample, [INFO] [stdout] | ^^^^^^^^^^^ not FFI-safe [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(improper_ctypes_definitions)]` on by default [INFO] [stdout] = help: consider adding a `#[repr(C)]` or `#[repr(transparent)]` attribute to this struct [INFO] [stdout] = note: this struct has unspecified layout [INFO] [stdout] note: the type is defined here [INFO] [stdout] --> src/lib.rs:92:1 [INFO] [stdout] | [INFO] [stdout] 92 | class!(RuruExample); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: linking with `cc` failed: exit code: 1 [INFO] [stdout] | [INFO] [stdout] = note: "cc" "-Wl,--as-needed" "-Wl,-z,noexecstack" "-m64" "-Wl,--eh-frame-hdr" "-L" "/opt/rustwide/rustup-home/toolchains/8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e/lib/rustlib/x86_64-unknown-linux-gnu/lib" "/opt/rustwide/target/debug/deps/ffi_example.ffi_example.6skdqt6n-cgu.0.rcgu.o" "/opt/rustwide/target/debug/deps/ffi_example.ffi_example.6skdqt6n-cgu.1.rcgu.o" "/opt/rustwide/target/debug/deps/ffi_example.ffi_example.6skdqt6n-cgu.10.rcgu.o" "/opt/rustwide/target/debug/deps/ffi_example.ffi_example.6skdqt6n-cgu.11.rcgu.o" "/opt/rustwide/target/debug/deps/ffi_example.ffi_example.6skdqt6n-cgu.12.rcgu.o" "/opt/rustwide/target/debug/deps/ffi_example.ffi_example.6skdqt6n-cgu.13.rcgu.o" "/opt/rustwide/target/debug/deps/ffi_example.ffi_example.6skdqt6n-cgu.14.rcgu.o" "/opt/rustwide/target/debug/deps/ffi_example.ffi_example.6skdqt6n-cgu.15.rcgu.o" "/opt/rustwide/target/debug/deps/ffi_example.ffi_example.6skdqt6n-cgu.2.rcgu.o" "/opt/rustwide/target/debug/deps/ffi_example.ffi_example.6skdqt6n-cgu.3.rcgu.o" "/opt/rustwide/target/debug/deps/ffi_example.ffi_example.6skdqt6n-cgu.4.rcgu.o" "/opt/rustwide/target/debug/deps/ffi_example.ffi_example.6skdqt6n-cgu.5.rcgu.o" "/opt/rustwide/target/debug/deps/ffi_example.ffi_example.6skdqt6n-cgu.6.rcgu.o" "/opt/rustwide/target/debug/deps/ffi_example.ffi_example.6skdqt6n-cgu.7.rcgu.o" "/opt/rustwide/target/debug/deps/ffi_example.ffi_example.6skdqt6n-cgu.8.rcgu.o" "/opt/rustwide/target/debug/deps/ffi_example.ffi_example.6skdqt6n-cgu.9.rcgu.o" "-o" "/opt/rustwide/target/debug/deps/libffi_example.so" "-Wl,--version-script=/tmp/rustcLtq3mY/list" "/opt/rustwide/target/debug/deps/ffi_example.3s7ff8uk2f6l1x54.rcgu.o" "/opt/rustwide/target/debug/deps/ffi_example.7ev6yys56tczrsw.rcgu.o" "-shared" "-Wl,-zrelro" "-Wl,-znow" "-nodefaultlibs" "-L" "/opt/rustwide/target/debug/deps" "-L" "/usr/lib" "-L" "/opt/rustwide/rustup-home/toolchains/8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-Wl,-Bstatic" "-Wl,--whole-archive" "/tmp/rustcLtq3mY/libarray_tool-3031852808b8ba8d.rlib" "-Wl,--no-whole-archive" "-Wl,--whole-archive" "/tmp/rustcLtq3mY/libruru-effa4e77c461b587.rlib" "-Wl,--no-whole-archive" "-Wl,--whole-archive" "/tmp/rustcLtq3mY/libruby_sys-c0e075825f8ecbec.rlib" "-Wl,--no-whole-archive" "-Wl,--whole-archive" "/tmp/rustcLtq3mY/liblibc-95696bfcce61be44.rlib" "-Wl,--no-whole-archive" "-Wl,--whole-archive" "/tmp/rustcLtq3mY/liblazy_static-e7da7dd7cd19118c.rlib" "-Wl,--no-whole-archive" "-Wl,--start-group" "-Wl,--whole-archive" "/tmp/rustcLtq3mY/libstd-5989bcf78182f65e.rlib" "-Wl,--no-whole-archive" "-Wl,--whole-archive" "/tmp/rustcLtq3mY/libpanic_unwind-4d6da34bc177af8d.rlib" "-Wl,--no-whole-archive" "-Wl,--whole-archive" "/tmp/rustcLtq3mY/libhashbrown-10e0d6c948699482.rlib" "-Wl,--no-whole-archive" "-Wl,--whole-archive" "/tmp/rustcLtq3mY/librustc_std_workspace_alloc-c2318e2415657781.rlib" "-Wl,--no-whole-archive" "-Wl,--whole-archive" "/tmp/rustcLtq3mY/libbacktrace-3815b93ed84badbb.rlib" "-Wl,--no-whole-archive" "-Wl,--whole-archive" "/tmp/rustcLtq3mY/libbacktrace_sys-d7999143d95238cb.rlib" "-Wl,--no-whole-archive" "-Wl,--whole-archive" "/tmp/rustcLtq3mY/librustc_demangle-c58298a0d40df8b8.rlib" "-Wl,--no-whole-archive" "-Wl,--whole-archive" "/tmp/rustcLtq3mY/libunwind-b7de97e2ba6fb4e2.rlib" "-Wl,--no-whole-archive" "-Wl,--whole-archive" "/tmp/rustcLtq3mY/libcfg_if-6f71c9f654d72cce.rlib" "-Wl,--no-whole-archive" "-Wl,--whole-archive" "/tmp/rustcLtq3mY/liblibc-95ea48ddc44a311b.rlib" "-Wl,--no-whole-archive" "-Wl,--whole-archive" "/tmp/rustcLtq3mY/liballoc-7402cd4761aebc14.rlib" "-Wl,--no-whole-archive" "-Wl,--whole-archive" "/tmp/rustcLtq3mY/librustc_std_workspace_core-68f423c59dc48a40.rlib" "-Wl,--no-whole-archive" "-Wl,--whole-archive" "/tmp/rustcLtq3mY/libcore-54580c7798bf2225.rlib" "-Wl,--no-whole-archive" "-Wl,--end-group" "/tmp/rustcLtq3mY/libcompiler_builtins-95a4d456339b7385.rlib" "-Wl,-Bdynamic" "-lruby-2.7" "-lutil" "-lutil" "-ldl" "-lrt" "-lpthread" "-lgcc_s" "-lc" "-lm" "-lrt" "-lpthread" "-lutil" "-ldl" "-lutil" [INFO] [stdout] = note: /usr/bin/ld: cannot find -lruby-2.7 [INFO] [stdout] collect2: error: ld returned 1 exit status [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to previous error; 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `ffi_example`. [INFO] [stderr] [INFO] [stderr] To learn more, run the command again with --verbose. [INFO] running `Command { std: "docker" "inspect" "9b6c57c54d40714709b18432807cb42f2392b87fd26804480ecc506bdfcd6298", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "9b6c57c54d40714709b18432807cb42f2392b87fd26804480ecc506bdfcd6298", kill_on_drop: false }` [INFO] [stdout] 9b6c57c54d40714709b18432807cb42f2392b87fd26804480ecc506bdfcd6298