[INFO] fetching crate dipstick 0.9.0...
[INFO] testing dipstick-0.9.0 against 1.49.0 for beta-1.50-1
[INFO] extracting crate dipstick 0.9.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate dipstick 0.9.0 on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate dipstick 0.9.0
[INFO] finished tweaking crates.io crate dipstick 0.9.0
[INFO] tweaked toml for crates.io crate dipstick 0.9.0 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate crates.io crate dipstick 0.9.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cfffd44576d3efb312a18383bb68fab041cd582a3d80bad86cb1b026a059374d
[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" "cfffd44576d3efb312a18383bb68fab041cd582a3d80bad86cb1b026a059374d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cfffd44576d3efb312a18383bb68fab041cd582a3d80bad86cb1b026a059374d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cfffd44576d3efb312a18383bb68fab041cd582a3d80bad86cb1b026a059374d", kill_on_drop: false }`
[INFO] [stdout] cfffd44576d3efb312a18383bb68fab041cd582a3d80bad86cb1b026a059374d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7687ad84b93b4d2c54ae225bace99be50428045550091661c8b81e8516e03f1e
[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" "7687ad84b93b4d2c54ae225bace99be50428045550091661c8b81e8516e03f1e", kill_on_drop: false }`
[INFO] [stderr]    Compiling dipstick v0.9.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling minreq v2.1.1
[INFO] [stderr]    Compiling atomic_refcell v0.1.6
[INFO] [stderr]    Compiling num-rational v0.2.4
[INFO] [stderr]    Compiling num-iter v0.1.40
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]    Compiling parking_lot_core v0.7.2
[INFO] [stderr]    Compiling crossbeam-channel v0.4.2
[INFO] [stderr]    Compiling parking_lot v0.10.2
[INFO] [stderr]    Compiling num v0.2.1
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 11.03s
[INFO] running `Command { std: "docker" "inspect" "7687ad84b93b4d2c54ae225bace99be50428045550091661c8b81e8516e03f1e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7687ad84b93b4d2c54ae225bace99be50428045550091661c8b81e8516e03f1e", kill_on_drop: false }`
[INFO] [stdout] 7687ad84b93b4d2c54ae225bace99be50428045550091661c8b81e8516e03f1e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ef203310742210451f14eb2c5142971e78ac9872b0b7f220f6e2ee714464b09a
[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" "ef203310742210451f14eb2c5142971e78ac9872b0b7f220f6e2ee714464b09a", kill_on_drop: false }`
[INFO] [stderr]    Compiling dipstick v0.9.0 (/opt/rustwide/workdir)
[INFO] [stderr] error: could not compile `dipstick`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name dipstick --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="crossbeam-channel"' --cfg 'feature="default"' --cfg 'feature="parking_lot"' --cfg 'feature="self_metrics"' -C metadata=d0a84319812f5722 -C extra-filename=-d0a84319812f5722 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern atomic_refcell=/opt/rustwide/target/debug/deps/libatomic_refcell-6476eef707c8bfad.rlib --extern crossbeam_channel=/opt/rustwide/target/debug/deps/libcrossbeam_channel-db38eb1703ac17e7.rlib --extern lazy_static=/opt/rustwide/target/debug/deps/liblazy_static-7895c92c6d278491.rlib --extern log=/opt/rustwide/target/debug/deps/liblog-bf3c59a5ff900e52.rlib --extern minreq=/opt/rustwide/target/debug/deps/libminreq-a984fd56fd5fbaaf.rlib --extern num=/opt/rustwide/target/debug/deps/libnum-86480374c9cf1da1.rlib --extern parking_lot=/opt/rustwide/target/debug/deps/libparking_lot-a2957e52a6df5019.rlib --extern time=/opt/rustwide/target/debug/deps/libtime-8458d3f1f193d0e4.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/1.49.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "/opt/rustwide/target/debug/examples/bench_bucket_proxy-b0a5d06621e0fa8b.bench_bucket_proxy.3gwwyk0n-cgu.0.rcgu.o" "/opt/rustwide/target/debug/examples/bench_bucket_proxy-b0a5d06621e0fa8b.bench_bucket_proxy.3gwwyk0n-cgu.1.rcgu.o" "/opt/rustwide/target/debug/examples/bench_bucket_proxy-b0a5d06621e0fa8b.bench_bucket_proxy.3gwwyk0n-cgu.10.rcgu.o" "/opt/rustwide/target/debug/examples/bench_bucket_proxy-b0a5d06621e0fa8b.bench_bucket_proxy.3gwwyk0n-cgu.11.rcgu.o" "/opt/rustwide/target/debug/examples/bench_bucket_proxy-b0a5d06621e0fa8b.bench_bucket_proxy.3gwwyk0n-cgu.12.rcgu.o" "/opt/rustwide/target/debug/examples/bench_bucket_proxy-b0a5d06621e0fa8b.bench_bucket_proxy.3gwwyk0n-cgu.13.rcgu.o" "/opt/rustwide/target/debug/examples/bench_bucket_proxy-b0a5d06621e0fa8b.bench_bucket_proxy.3gwwyk0n-cgu.14.rcgu.o" "/opt/rustwide/target/debug/examples/bench_bucket_proxy-b0a5d06621e0fa8b.bench_bucket_proxy.3gwwyk0n-cgu.15.rcgu.o" "/opt/rustwide/target/debug/examples/bench_bucket_proxy-b0a5d06621e0fa8b.bench_bucket_proxy.3gwwyk0n-cgu.2.rcgu.o" "/opt/rustwide/target/debug/examples/bench_bucket_proxy-b0a5d06621e0fa8b.bench_bucket_proxy.3gwwyk0n-cgu.3.rcgu.o" "/opt/rustwide/target/debug/examples/bench_bucket_proxy-b0a5d06621e0fa8b.bench_bucket_proxy.3gwwyk0n-cgu.4.rcgu.o" "/opt/rustwide/target/debug/examples/bench_bucket_proxy-b0a5d06621e0fa8b.bench_bucket_proxy.3gwwyk0n-cgu.5.rcgu.o" "/opt/rustwide/target/debug/examples/bench_bucket_proxy-b0a5d06621e0fa8b.bench_bucket_proxy.3gwwyk0n-cgu.6.rcgu.o" "/opt/rustwide/target/debug/examples/bench_bucket_proxy-b0a5d06621e0fa8b.bench_bucket_proxy.3gwwyk0n-cgu.7.rcgu.o" "/opt/rustwide/target/debug/examples/bench_bucket_proxy-b0a5d06621e0fa8b.bench_bucket_proxy.3gwwyk0n-cgu.8.rcgu.o" "/opt/rustwide/target/debug/examples/bench_bucket_proxy-b0a5d06621e0fa8b.bench_bucket_proxy.3gwwyk0n-cgu.9.rcgu.o" "-o" "/opt/rustwide/target/debug/examples/bench_bucket_proxy-b0a5d06621e0fa8b" "/opt/rustwide/target/debug/examples/bench_bucket_proxy-b0a5d06621e0fa8b.1j8hz5bdg83c1k41.rcgu.o" "-Wl,--gc-sections" "-pie" "-Wl,-zrelro" "-Wl,-znow" "-nodefaultlibs" "-L" "/opt/rustwide/target/debug/deps" "-L" "/opt/rustwide/rustup-home/toolchains/1.49.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-Wl,-Bstatic" "/opt/rustwide/target/debug/deps/libdipstick-f1f1235cdb580b72.rlib" "/opt/rustwide/target/debug/deps/libminreq-a984fd56fd5fbaaf.rlib" "/opt/rustwide/target/debug/deps/libtime-8458d3f1f193d0e4.rlib" "/opt/rustwide/target/debug/deps/libcrossbeam_channel-db38eb1703ac17e7.rlib" "/opt/rustwide/target/debug/deps/libmaybe_uninit-ba8c860573beb973.rlib" "/opt/rustwide/target/debug/deps/libcrossbeam_utils-f70100d05e1798e6.rlib" "/opt/rustwide/target/debug/deps/libatomic_refcell-6476eef707c8bfad.rlib" "/opt/rustwide/target/debug/deps/libnum-86480374c9cf1da1.rlib" "/opt/rustwide/target/debug/deps/libnum_rational-bd038ea4b3aed9fe.rlib" "/opt/rustwide/target/debug/deps/libnum_iter-f58498b42542ecce.rlib" "/opt/rustwide/target/debug/deps/libnum_integer-9a9bd063b59627d4.rlib" "/opt/rustwide/target/debug/deps/libnum_complex-b6462c1324531af5.rlib" "/opt/rustwide/target/debug/deps/libnum_traits-d919d57b03d47e3d.rlib" "/opt/rustwide/target/debug/deps/libparking_lot-a2957e52a6df5019.rlib" "/opt/rustwide/target/debug/deps/libparking_lot_core-bf816eec02ff6885.rlib" "/opt/rustwide/target/debug/deps/liblibc-72bab3e423bcd510.rlib" "/opt/rustwide/target/debug/deps/libsmallvec-1037d348a556d154.rlib" "/opt/rustwide/target/debug/deps/liblock_api-dbb4a111800d5527.rlib" "/opt/rustwide/target/debug/deps/libscopeguard-61a8585eac99cded.rlib" "/opt/rustwide/target/debug/deps/liblazy_static-7895c92c6d278491.rlib" "/opt/rustwide/target/debug/deps/liblog-bf3c59a5ff900e52.rlib" "/opt/rustwide/target/debug/deps/libcfg_if-b10e0993eefc366b.rlib" "-Wl,--start-group" "/opt/rustwide/rustup-home/toolchains/1.49.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-e12de7683a34c500.rlib" "/opt/rustwide/rustup-home/toolchains/1.49.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libpanic_unwind-446a53c2e468675f.rlib" "/opt/rustwide/rustup-home/toolchains/1.49.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libminiz_oxide-86fef9fb252a2d33.rlib" "/opt/rustwide/rustup-home/toolchains/1.49.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libadler-3bed9bfd30304751.rlib" "/opt/rustwide/rustup-home/toolchains/1.49.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libobject-0e38eeb474a7b386.rlib" "/opt/rustwide/rustup-home/toolchains/1.49.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libaddr2line-a846ed547b824740.rlib" "/opt/rustwide/rustup-home/toolchains/1.49.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libgimli-c9540f0a4fb9265d.rlib" "/opt/rustwide/rustup-home/toolchains/1.49.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_demangle-7d2ca66c92c356eb.rlib" "/opt/rustwide/rustup-home/toolchains/1.49.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libhashbrown-147e2c808f949493.rlib" "/opt/rustwide/rustup-home/toolchains/1.49.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_alloc-bd2a4369506670e9.rlib" "/opt/rustwide/rustup-home/toolchains/1.49.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libunwind-74bfdd0ce7d0ed48.rlib" "/opt/rustwide/rustup-home/toolchains/1.49.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcfg_if-6777f47f1c491841.rlib" "/opt/rustwide/rustup-home/toolchains/1.49.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liblibc-b104f1790174f2be.rlib" "/opt/rustwide/rustup-home/toolchains/1.49.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liballoc-db37898996f45c13.rlib" "/opt/rustwide/rustup-home/toolchains/1.49.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_core-25b7435131fc4938.rlib" "/opt/rustwide/rustup-home/toolchains/1.49.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore-9d4b6f3c097e876e.rlib" "-Wl,--end-group" "/opt/rustwide/rustup-home/toolchains/1.49.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcompiler_builtins-3f953ad652ab829a.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" "ef203310742210451f14eb2c5142971e78ac9872b0b7f220f6e2ee714464b09a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ef203310742210451f14eb2c5142971e78ac9872b0b7f220f6e2ee714464b09a", kill_on_drop: false }`
[INFO] [stdout] ef203310742210451f14eb2c5142971e78ac9872b0b7f220f6e2ee714464b09a