[INFO] fetching crate smoltcp 0.7.1...
[INFO] testing smoltcp-0.7.1 against 1.52.1 for beta-1.53-1
[INFO] extracting crate smoltcp 0.7.1 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate smoltcp 0.7.1 on toolchain 1.52.1
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.52.1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate smoltcp 0.7.1
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate smoltcp 0.7.1
[INFO] tweaked toml for crates.io crate smoltcp 0.7.1 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate crates.io crate smoltcp 0.7.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.52.1" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+1.52.1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7ff98c60427c6f35b6a29ef25b5e63bb4bccd62eacecbe44a6fd34d0b17abd4c
[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" "7ff98c60427c6f35b6a29ef25b5e63bb4bccd62eacecbe44a6fd34d0b17abd4c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7ff98c60427c6f35b6a29ef25b5e63bb4bccd62eacecbe44a6fd34d0b17abd4c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7ff98c60427c6f35b6a29ef25b5e63bb4bccd62eacecbe44a6fd34d0b17abd4c", kill_on_drop: false }`
[INFO] [stdout] 7ff98c60427c6f35b6a29ef25b5e63bb4bccd62eacecbe44a6fd34d0b17abd4c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+1.52.1" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a3476e70fc8d11b2f7323332bd7987e0c453deb75931b0729832187e62e73f9e
[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" "a3476e70fc8d11b2f7323332bd7987e0c453deb75931b0729832187e62e73f9e", kill_on_drop: false }`
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling managed v0.7.2
[INFO] [stderr]    Compiling smoltcp v0.7.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.93s
[INFO] running `Command { std: "docker" "inspect" "a3476e70fc8d11b2f7323332bd7987e0c453deb75931b0729832187e62e73f9e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a3476e70fc8d11b2f7323332bd7987e0c453deb75931b0729832187e62e73f9e", kill_on_drop: false }`
[INFO] [stdout] a3476e70fc8d11b2f7323332bd7987e0c453deb75931b0729832187e62e73f9e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+1.52.1" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2ee89bc3f5aab03caa66300f863cdfaee8f005de0b73ab575f7e4be5b97239ad
[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" "2ee89bc3f5aab03caa66300f863cdfaee8f005de0b73ab575f7e4be5b97239ad", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling tinyvec v0.3.4
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]    Compiling env_logger v0.5.13
[INFO] [stderr]    Compiling unicode-normalization v0.1.13
[INFO] [stderr]    Compiling rand v0.3.23
[INFO] [stderr]    Compiling idna v0.1.5
[INFO] [stderr]    Compiling url v1.7.2
[INFO] [stderr]    Compiling smoltcp v0.7.1 (/opt/rustwide/workdir)
[INFO] [stderr] error: could not compile `smoltcp`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name smoltcp --edition=2018 src/lib.rs --error-format=json --json=diagnostic-rendered-ansi --emit=dep-info,link -C embed-bitcode=no -C debuginfo=2 --test --cfg 'feature="async"' --cfg 'feature="default"' --cfg 'feature="ethernet"' --cfg 'feature="libc"' --cfg 'feature="log"' --cfg 'feature="phy-raw_socket"' --cfg 'feature="phy-tap_interface"' --cfg 'feature="proto-dhcpv4"' --cfg 'feature="proto-igmp"' --cfg 'feature="proto-ipv4"' --cfg 'feature="proto-ipv6"' --cfg 'feature="socket"' --cfg 'feature="socket-icmp"' --cfg 'feature="socket-raw"' --cfg 'feature="socket-tcp"' --cfg 'feature="socket-udp"' --cfg 'feature="std"' -C metadata=fa29b3972490139b -C extra-filename=-fa29b3972490139b --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern bitflags=/opt/rustwide/target/debug/deps/libbitflags-433b88524ff3dd00.rlib --extern byteorder=/opt/rustwide/target/debug/deps/libbyteorder-8415ff71d9976fa6.rlib --extern env_logger=/opt/rustwide/target/debug/deps/libenv_logger-7934d1926fb85f6c.rlib --extern getopts=/opt/rustwide/target/debug/deps/libgetopts-97af8612893dc526.rlib --extern libc=/opt/rustwide/target/debug/deps/liblibc-b081342613c008c9.rlib --extern log=/opt/rustwide/target/debug/deps/liblog-8c515c333ba0c00b.rlib --extern managed=/opt/rustwide/target/debug/deps/libmanaged-a45136e4f443cd73.rlib --extern rand=/opt/rustwide/target/debug/deps/librand-e4062c7972cec693.rlib --extern url=/opt/rustwide/target/debug/deps/liburl-6d54d15e101e3bd3.rlib --cap-lints=warn` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: linking with `cc` failed: signal: 9
[INFO] [stdout]   |
[INFO] [stdout]   = note: "cc" "-Wl,--as-needed" "-Wl,-z,noexecstack" "-m64" "-Wl,--eh-frame-hdr" "-L" "/opt/rustwide/rustup-home/toolchains/1.52.1-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "/opt/rustwide/target/debug/examples/ping-d911776291cd8ce8.ping.8xzyo435-cgu.0.rcgu.o" "/opt/rustwide/target/debug/examples/ping-d911776291cd8ce8.ping.8xzyo435-cgu.1.rcgu.o" "/opt/rustwide/target/debug/examples/ping-d911776291cd8ce8.ping.8xzyo435-cgu.10.rcgu.o" "/opt/rustwide/target/debug/examples/ping-d911776291cd8ce8.ping.8xzyo435-cgu.11.rcgu.o" "/opt/rustwide/target/debug/examples/ping-d911776291cd8ce8.ping.8xzyo435-cgu.12.rcgu.o" "/opt/rustwide/target/debug/examples/ping-d911776291cd8ce8.ping.8xzyo435-cgu.13.rcgu.o" "/opt/rustwide/target/debug/examples/ping-d911776291cd8ce8.ping.8xzyo435-cgu.14.rcgu.o" "/opt/rustwide/target/debug/examples/ping-d911776291cd8ce8.ping.8xzyo435-cgu.15.rcgu.o" "/opt/rustwide/target/debug/examples/ping-d911776291cd8ce8.ping.8xzyo435-cgu.2.rcgu.o" "/opt/rustwide/target/debug/examples/ping-d911776291cd8ce8.ping.8xzyo435-cgu.3.rcgu.o" "/opt/rustwide/target/debug/examples/ping-d911776291cd8ce8.ping.8xzyo435-cgu.4.rcgu.o" "/opt/rustwide/target/debug/examples/ping-d911776291cd8ce8.ping.8xzyo435-cgu.5.rcgu.o" "/opt/rustwide/target/debug/examples/ping-d911776291cd8ce8.ping.8xzyo435-cgu.6.rcgu.o" "/opt/rustwide/target/debug/examples/ping-d911776291cd8ce8.ping.8xzyo435-cgu.7.rcgu.o" "/opt/rustwide/target/debug/examples/ping-d911776291cd8ce8.ping.8xzyo435-cgu.8.rcgu.o" "/opt/rustwide/target/debug/examples/ping-d911776291cd8ce8.ping.8xzyo435-cgu.9.rcgu.o" "-o" "/opt/rustwide/target/debug/examples/ping-d911776291cd8ce8" "/opt/rustwide/target/debug/examples/ping-d911776291cd8ce8.2agptb5ozbdgx8j.rcgu.o" "-Wl,--gc-sections" "-pie" "-Wl,-zrelro" "-Wl,-znow" "-nodefaultlibs" "-L" "/opt/rustwide/target/debug/deps" "-L" "/opt/rustwide/rustup-home/toolchains/1.52.1-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-Wl,-Bstatic" "/opt/rustwide/target/debug/deps/libsmoltcp-bb59571a73e30483.rlib" "/opt/rustwide/target/debug/deps/libbitflags-433b88524ff3dd00.rlib" "/opt/rustwide/target/debug/deps/libbyteorder-8415ff71d9976fa6.rlib" "/opt/rustwide/target/debug/deps/libmanaged-a45136e4f443cd73.rlib" "/opt/rustwide/target/debug/deps/libgetopts-97af8612893dc526.rlib" "/opt/rustwide/target/debug/deps/libunicode_width-df30719f06b67443.rlib" "/opt/rustwide/target/debug/deps/libenv_logger-7934d1926fb85f6c.rlib" "/opt/rustwide/target/debug/deps/libregex-2c04d3d1aaa72acb.rlib" "/opt/rustwide/target/debug/deps/libthread_local-546082e9618ccbf7.rlib" "/opt/rustwide/target/debug/deps/liblazy_static-61a1220fde72d8ee.rlib" "/opt/rustwide/target/debug/deps/libregex_syntax-ce621ad0df56318d.rlib" "/opt/rustwide/target/debug/deps/libaho_corasick-001e134d9a44a1f6.rlib" "/opt/rustwide/target/debug/deps/libmemchr-594dcbfabada7113.rlib" "/opt/rustwide/target/debug/deps/libatty-029d43dc6c9d3f74.rlib" "/opt/rustwide/target/debug/deps/liblibc-b081342613c008c9.rlib" "/opt/rustwide/target/debug/deps/libhumantime-60306966d7bb6ef7.rlib" "/opt/rustwide/target/debug/deps/libquick_error-2f1df83628f8160b.rlib" "/opt/rustwide/target/debug/deps/libtermcolor-06a632594f6040f7.rlib" "/opt/rustwide/target/debug/deps/liblog-8c515c333ba0c00b.rlib" "/opt/rustwide/target/debug/deps/libcfg_if-c5c8cf6422d646a2.rlib" "-Wl,--start-group" "/opt/rustwide/rustup-home/toolchains/1.52.1-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-0a9489cf400f65e4.rlib" "/opt/rustwide/rustup-home/toolchains/1.52.1-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libpanic_unwind-ff5dc44c66f8c479.rlib" "/opt/rustwide/rustup-home/toolchains/1.52.1-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libminiz_oxide-3317c66a83501f9c.rlib" "/opt/rustwide/rustup-home/toolchains/1.52.1-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libadler-5d8dec11fc25537d.rlib" "/opt/rustwide/rustup-home/toolchains/1.52.1-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libobject-3af2a9328550e2a6.rlib" "/opt/rustwide/rustup-home/toolchains/1.52.1-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libaddr2line-3092e2ecef0f49f1.rlib" "/opt/rustwide/rustup-home/toolchains/1.52.1-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libgimli-29b776c021389465.rlib" "/opt/rustwide/rustup-home/toolchains/1.52.1-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_demangle-e8873bd287db0d28.rlib" "/opt/rustwide/rustup-home/toolchains/1.52.1-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libhashbrown-1171b49d77e47426.rlib" "/opt/rustwide/rustup-home/toolchains/1.52.1-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_alloc-c29894d22dc88b51.rlib" "/opt/rustwide/rustup-home/toolchains/1.52.1-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libunwind-796a7750df3d8218.rlib" "/opt/rustwide/rustup-home/toolchains/1.52.1-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcfg_if-ff7772d803d3e0de.rlib" "/opt/rustwide/rustup-home/toolchains/1.52.1-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liblibc-dae3eac9cfa44200.rlib" "/opt/rustwide/rustup-home/toolchains/1.52.1-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liballoc-0fa02f580e987af5.rlib" "/opt/rustwide/rustup-home/toolchains/1.52.1-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_core-7f7254233be843ed.rlib" "/opt/rustwide/rustup-home/toolchains/1.52.1-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore-1395c6db3d116086.rlib" "-Wl,--end-group" "/opt/rustwide/rustup-home/toolchains/1.52.1-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcompiler_builtins-b4bd87926720b651.rlib" "-Wl,-Bdynamic" "-lutil" "-ldl" "-lutil" "-lgcc_s" "-lutil" "-lrt" "-lpthread" "-lm" "-ldl" "-lc"
[INFO] [stdout]   = note: 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "2ee89bc3f5aab03caa66300f863cdfaee8f005de0b73ab575f7e4be5b97239ad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2ee89bc3f5aab03caa66300f863cdfaee8f005de0b73ab575f7e4be5b97239ad", kill_on_drop: false }`
[INFO] [stdout] 2ee89bc3f5aab03caa66300f863cdfaee8f005de0b73ab575f7e4be5b97239ad