[INFO] fetching crate liblbfgs-sys 0.1.2... [INFO] testing liblbfgs-sys-0.1.2 against 1.60.0 for beta-1.61-1 [INFO] extracting crate liblbfgs-sys 0.1.2 into /workspace/builds/worker-8/source [INFO] validating manifest of crates.io crate liblbfgs-sys 0.1.2 on toolchain 1.60.0 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate liblbfgs-sys 0.1.2 [INFO] finished tweaking crates.io crate liblbfgs-sys 0.1.2 [INFO] tweaked toml for crates.io crate liblbfgs-sys 0.1.2 written to /workspace/builds/worker-8/source/Cargo.toml [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }` [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 7118ba9db7682880b4e82f3b04790b2c2ce6d5953aa15bd9f07e88a0f7be521a [INFO] running `Command { std: "docker" "start" "-a" "7118ba9db7682880b4e82f3b04790b2c2ce6d5953aa15bd9f07e88a0f7be521a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "7118ba9db7682880b4e82f3b04790b2c2ce6d5953aa15bd9f07e88a0f7be521a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "7118ba9db7682880b4e82f3b04790b2c2ce6d5953aa15bd9f07e88a0f7be521a", kill_on_drop: false }` [INFO] [stdout] 7118ba9db7682880b4e82f3b04790b2c2ce6d5953aa15bd9f07e88a0f7be521a [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 670dcc84d4bfba3c977f7419b419eb7dfe14ac30f2f587945e9c6a204dc1841a [INFO] running `Command { std: "docker" "start" "-a" "670dcc84d4bfba3c977f7419b419eb7dfe14ac30f2f587945e9c6a204dc1841a", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Compiling cmake v0.1.48 [INFO] [stderr] Compiling liblbfgs-sys v0.1.2 (/opt/rustwide/workdir) [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 5.02s [INFO] running `Command { std: "docker" "inspect" "670dcc84d4bfba3c977f7419b419eb7dfe14ac30f2f587945e9c6a204dc1841a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "670dcc84d4bfba3c977f7419b419eb7dfe14ac30f2f587945e9c6a204dc1841a", kill_on_drop: false }` [INFO] [stdout] 670dcc84d4bfba3c977f7419b419eb7dfe14ac30f2f587945e9c6a204dc1841a [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 514fabe94e99568092560053c0526040b4d58e64abfe16d85a93e74c6f11d98e [INFO] running `Command { std: "docker" "start" "-a" "514fabe94e99568092560053c0526040b4d58e64abfe16d85a93e74c6f11d98e", kill_on_drop: false }` [INFO] [stderr] Compiling liblbfgs-sys v0.1.2 (/opt/rustwide/workdir) [INFO] [stdout] warning: dereferencing a null pointer [INFO] [stdout] --> src/lib.rs:250:19 [INFO] [stdout] | [INFO] [stdout] 250 | unsafe { &(*(::std::ptr::null::())).m as *const _ as usize }, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ this code causes undefined behavior when executed [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(deref_nullptr)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: dereferencing a null pointer [INFO] [stdout] --> src/lib.rs:260:19 [INFO] [stdout] | [INFO] [stdout] 260 | unsafe { &(*(::std::ptr::null::())).epsilon as *const _ as usize }, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ this code causes undefined behavior when executed [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: dereferencing a null pointer [INFO] [stdout] --> src/lib.rs:270:19 [INFO] [stdout] | [INFO] [stdout] 270 | unsafe { &(*(::std::ptr::null::())).past as *const _ as usize }, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ this code causes undefined behavior when executed [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: dereferencing a null pointer [INFO] [stdout] --> src/lib.rs:280:19 [INFO] [stdout] | [INFO] [stdout] 280 | unsafe { &(*(::std::ptr::null::())).delta as *const _ as usize }, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ this code causes undefined behavior when executed [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: dereferencing a null pointer [INFO] [stdout] --> src/lib.rs:291:14 [INFO] [stdout] | [INFO] [stdout] 291 | &(*(::std::ptr::null::())).max_iterations as *const _ as usize [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ this code causes undefined behavior when executed [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: dereferencing a null pointer [INFO] [stdout] --> src/lib.rs:302:19 [INFO] [stdout] | [INFO] [stdout] 302 | unsafe { &(*(::std::ptr::null::())).linesearch as *const _ as usize }, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ this code causes undefined behavior when executed [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: dereferencing a null pointer [INFO] [stdout] --> src/lib.rs:313:14 [INFO] [stdout] | [INFO] [stdout] 313 | &(*(::std::ptr::null::())).max_linesearch as *const _ as usize [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ this code causes undefined behavior when executed [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: dereferencing a null pointer [INFO] [stdout] --> src/lib.rs:324:19 [INFO] [stdout] | [INFO] [stdout] 324 | unsafe { &(*(::std::ptr::null::())).min_step as *const _ as usize }, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ this code causes undefined behavior when executed [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: dereferencing a null pointer [INFO] [stdout] --> src/lib.rs:334:19 [INFO] [stdout] | [INFO] [stdout] 334 | unsafe { &(*(::std::ptr::null::())).max_step as *const _ as usize }, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ this code causes undefined behavior when executed [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: dereferencing a null pointer [INFO] [stdout] --> src/lib.rs:344:19 [INFO] [stdout] | [INFO] [stdout] 344 | unsafe { &(*(::std::ptr::null::())).ftol as *const _ as usize }, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ this code causes undefined behavior when executed [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: dereferencing a null pointer [INFO] [stdout] --> src/lib.rs:354:19 [INFO] [stdout] | [INFO] [stdout] 354 | unsafe { &(*(::std::ptr::null::())).wolfe as *const _ as usize }, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ this code causes undefined behavior when executed [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: dereferencing a null pointer [INFO] [stdout] --> src/lib.rs:364:19 [INFO] [stdout] | [INFO] [stdout] 364 | unsafe { &(*(::std::ptr::null::())).gtol as *const _ as usize }, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ this code causes undefined behavior when executed [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: dereferencing a null pointer [INFO] [stdout] --> src/lib.rs:374:19 [INFO] [stdout] | [INFO] [stdout] 374 | unsafe { &(*(::std::ptr::null::())).xtol as *const _ as usize }, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ this code causes undefined behavior when executed [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: dereferencing a null pointer [INFO] [stdout] --> src/lib.rs:384:19 [INFO] [stdout] | [INFO] [stdout] 384 | unsafe { &(*(::std::ptr::null::())).orthantwise_c as *const _ as usize }, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ this code causes undefined behavior when executed [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: dereferencing a null pointer [INFO] [stdout] --> src/lib.rs:395:14 [INFO] [stdout] | [INFO] [stdout] 395 | &(*(::std::ptr::null::())).orthantwise_start as *const _ as usize [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ this code causes undefined behavior when executed [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: dereferencing a null pointer [INFO] [stdout] --> src/lib.rs:407:14 [INFO] [stdout] | [INFO] [stdout] 407 | &(*(::std::ptr::null::())).orthantwise_end as *const _ as usize [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ this code causes undefined behavior when executed [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 16 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.62s [INFO] running `Command { std: "docker" "inspect" "514fabe94e99568092560053c0526040b4d58e64abfe16d85a93e74c6f11d98e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "514fabe94e99568092560053c0526040b4d58e64abfe16d85a93e74c6f11d98e", kill_on_drop: false }` [INFO] [stdout] 514fabe94e99568092560053c0526040b4d58e64abfe16d85a93e74c6f11d98e [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 01c444a4a3d8da810064320227fded9149ca2eecf5c91e49a86d62e3c5faa4e1 [INFO] running `Command { std: "docker" "start" "-a" "01c444a4a3d8da810064320227fded9149ca2eecf5c91e49a86d62e3c5faa4e1", kill_on_drop: false }` [INFO] [stderr] warning: dereferencing a null pointer [INFO] [stderr] --> src/lib.rs:250:19 [INFO] [stderr] | [INFO] [stderr] 250 | unsafe { &(*(::std::ptr::null::())).m as *const _ as usize }, [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ this code causes undefined behavior when executed [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(deref_nullptr)]` on by default [INFO] [stderr] [INFO] [stderr] warning: dereferencing a null pointer [INFO] [stderr] --> src/lib.rs:260:19 [INFO] [stderr] | [INFO] [stderr] 260 | unsafe { &(*(::std::ptr::null::())).epsilon as *const _ as usize }, [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ this code causes undefined behavior when executed [INFO] [stderr] [INFO] [stderr] warning: dereferencing a null pointer [INFO] [stderr] --> src/lib.rs:270:19 [INFO] [stderr] | [INFO] [stderr] 270 | unsafe { &(*(::std::ptr::null::())).past as *const _ as usize }, [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ this code causes undefined behavior when executed [INFO] [stderr] [INFO] [stderr] warning: dereferencing a null pointer [INFO] [stderr] --> src/lib.rs:280:19 [INFO] [stderr] | [INFO] [stderr] 280 | unsafe { &(*(::std::ptr::null::())).delta as *const _ as usize }, [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ this code causes undefined behavior when executed [INFO] [stderr] [INFO] [stderr] warning: dereferencing a null pointer [INFO] [stderr] --> src/lib.rs:291:14 [INFO] [stderr] | [INFO] [stderr] 291 | &(*(::std::ptr::null::())).max_iterations as *const _ as usize [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ this code causes undefined behavior when executed [INFO] [stderr] [INFO] [stderr] warning: dereferencing a null pointer [INFO] [stderr] --> src/lib.rs:302:19 [INFO] [stderr] | [INFO] [stderr] 302 | unsafe { &(*(::std::ptr::null::())).linesearch as *const _ as usize }, [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ this code causes undefined behavior when executed [INFO] [stderr] [INFO] [stderr] warning: dereferencing a null pointer [INFO] [stderr] --> src/lib.rs:313:14 [INFO] [stderr] | [INFO] [stderr] 313 | &(*(::std::ptr::null::())).max_linesearch as *const _ as usize [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ this code causes undefined behavior when executed [INFO] [stderr] [INFO] [stderr] warning: dereferencing a null pointer [INFO] [stderr] --> src/lib.rs:324:19 [INFO] [stderr] | [INFO] [stderr] 324 | unsafe { &(*(::std::ptr::null::())).min_step as *const _ as usize }, [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ this code causes undefined behavior when executed [INFO] [stderr] [INFO] [stderr] warning: dereferencing a null pointer [INFO] [stderr] --> src/lib.rs:334:19 [INFO] [stderr] | [INFO] [stderr] 334 | unsafe { &(*(::std::ptr::null::())).max_step as *const _ as usize }, [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ this code causes undefined behavior when executed [INFO] [stderr] [INFO] [stderr] warning: dereferencing a null pointer [INFO] [stderr] --> src/lib.rs:344:19 [INFO] [stderr] | [INFO] [stderr] 344 | unsafe { &(*(::std::ptr::null::())).ftol as *const _ as usize }, [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ this code causes undefined behavior when executed [INFO] [stderr] [INFO] [stderr] warning: dereferencing a null pointer [INFO] [stderr] --> src/lib.rs:354:19 [INFO] [stderr] | [INFO] [stderr] 354 | unsafe { &(*(::std::ptr::null::())).wolfe as *const _ as usize }, [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ this code causes undefined behavior when executed [INFO] [stderr] [INFO] [stderr] warning: dereferencing a null pointer [INFO] [stderr] --> src/lib.rs:364:19 [INFO] [stderr] | [INFO] [stderr] 364 | unsafe { &(*(::std::ptr::null::())).gtol as *const _ as usize }, [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ this code causes undefined behavior when executed [INFO] [stderr] [INFO] [stderr] warning: dereferencing a null pointer [INFO] [stderr] --> src/lib.rs:374:19 [INFO] [stderr] | [INFO] [stderr] 374 | unsafe { &(*(::std::ptr::null::())).xtol as *const _ as usize }, [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ this code causes undefined behavior when executed [INFO] [stderr] [INFO] [stderr] warning: dereferencing a null pointer [INFO] [stderr] --> src/lib.rs:384:19 [INFO] [stderr] | [INFO] [stderr] 384 | unsafe { &(*(::std::ptr::null::())).orthantwise_c as *const _ as usize }, [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ this code causes undefined behavior when executed [INFO] [stderr] [INFO] [stderr] warning: dereferencing a null pointer [INFO] [stderr] --> src/lib.rs:395:14 [INFO] [stderr] | [INFO] [stderr] 395 | &(*(::std::ptr::null::())).orthantwise_start as *const _ as usize [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ this code causes undefined behavior when executed [INFO] [stderr] [INFO] [stderr] warning: dereferencing a null pointer [INFO] [stderr] --> src/lib.rs:407:14 [INFO] [stderr] | [INFO] [stderr] 407 | &(*(::std::ptr::null::())).orthantwise_end as *const _ as usize [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ this code causes undefined behavior when executed [INFO] [stderr] [INFO] [stderr] warning: `liblbfgs-sys` (lib test) generated 16 warnings [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.02s [INFO] [stderr] Running unittests (/opt/rustwide/target/debug/deps/liblbfgs_sys-cd72044cbbc6f041) [INFO] [stdout] [INFO] [stderr] Doc-tests liblbfgs-sys [INFO] [stdout] running 1 test [INFO] [stdout] test bindgen_test_layout_lbfgs_parameter_t ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "01c444a4a3d8da810064320227fded9149ca2eecf5c91e49a86d62e3c5faa4e1", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "01c444a4a3d8da810064320227fded9149ca2eecf5c91e49a86d62e3c5faa4e1", kill_on_drop: false }` [INFO] [stdout] 01c444a4a3d8da810064320227fded9149ca2eecf5c91e49a86d62e3c5faa4e1