[INFO] fetching crate procspawn 0.10.0...
[INFO] testing procspawn-0.10.0 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate procspawn 0.10.0 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate procspawn 0.10.0 on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate procspawn 0.10.0
[INFO] removed 0 missing examples
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate procspawn 0.10.0
[INFO] tweaked toml for crates.io crate procspawn 0.10.0 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate crates.io crate procspawn 0.10.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded findshlibs v0.8.0
[INFO] [stderr]   Downloaded ipc-channel v0.15.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] a1e50d29df40232ea0c787fa79ffcd4a18222b581806bf475af7a68ca9d0d7b0
[INFO] running `Command { std: "docker" "start" "-a" "a1e50d29df40232ea0c787fa79ffcd4a18222b581806bf475af7a68ca9d0d7b0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a1e50d29df40232ea0c787fa79ffcd4a18222b581806bf475af7a68ca9d0d7b0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a1e50d29df40232ea0c787fa79ffcd4a18222b581806bf475af7a68ca9d0d7b0", kill_on_drop: false }`
[INFO] [stdout] a1e50d29df40232ea0c787fa79ffcd4a18222b581806bf475af7a68ca9d0d7b0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] dc526db7f35ee91d53c4878090d9594daa2961763aab4eccb7056f9ceae1469f
[INFO] running `Command { std: "docker" "start" "-a" "dc526db7f35ee91d53c4878090d9594daa2961763aab4eccb7056f9ceae1469f", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.126
[INFO] [stderr]    Compiling backtrace v0.3.60
[INFO] [stderr]    Compiling object v0.25.3
[INFO] [stderr]    Compiling findshlibs v0.8.0
[INFO] [stderr]    Compiling syn v1.0.73
[INFO] [stderr]    Compiling uuid v0.8.2
[INFO] [stderr]    Compiling serde_derive v1.0.126
[INFO] [stderr]    Compiling bincode v1.3.3
[INFO] [stderr]    Compiling ipc-channel v0.15.0
[INFO] [stderr]    Compiling procspawn v0.10.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 21.06s
[INFO] running `Command { std: "docker" "inspect" "dc526db7f35ee91d53c4878090d9594daa2961763aab4eccb7056f9ceae1469f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dc526db7f35ee91d53c4878090d9594daa2961763aab4eccb7056f9ceae1469f", kill_on_drop: false }`
[INFO] [stdout] dc526db7f35ee91d53c4878090d9594daa2961763aab4eccb7056f9ceae1469f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fa15176299a490b75c746dc78aa24963ab1493cc168383eabcddea1800db03a9
[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" "fa15176299a490b75c746dc78aa24963ab1493cc168383eabcddea1800db03a9", 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] [stderr]    Compiling procspawn v0.10.0 (/opt/rustwide/workdir)
[INFO] [stderr] error: could not compile `procspawn`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name procspawn --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="backtrace"' --cfg 'feature="default"' --cfg 'feature="findshlibs"' --cfg 'feature="safe-shared-libraries"' -C metadata=fa81e0bce05a1ac4 -C extra-filename=-fa81e0bce05a1ac4 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern backtrace=/opt/rustwide/target/debug/deps/libbacktrace-db4ed82aac2a539c.rlib --extern findshlibs=/opt/rustwide/target/debug/deps/libfindshlibs-2844cfa0f17e6fc6.rlib --extern ipc_channel=/opt/rustwide/target/debug/deps/libipc_channel-fab268aa72bc6bbb.rlib --extern libc=/opt/rustwide/target/debug/deps/liblibc-4f61527b72afcfa9.rlib --extern serde=/opt/rustwide/target/debug/deps/libserde-484a318ebe742a72.rlib --cap-lints=warn` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "fa15176299a490b75c746dc78aa24963ab1493cc168383eabcddea1800db03a9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fa15176299a490b75c746dc78aa24963ab1493cc168383eabcddea1800db03a9", kill_on_drop: false }`
[INFO] [stdout] fa15176299a490b75c746dc78aa24963ab1493cc168383eabcddea1800db03a9