[INFO] fetching crate rbspy-ruby-structs 0.8.1...
[INFO] testing rbspy-ruby-structs-0.8.1 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate rbspy-ruby-structs 0.8.1 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate rbspy-ruby-structs 0.8.1 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 rbspy-ruby-structs 0.8.1
[INFO] finished tweaking crates.io crate rbspy-ruby-structs 0.8.1
[INFO] tweaked toml for crates.io crate rbspy-ruby-structs 0.8.1 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--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-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] [stdout] 02955b8a44beaf817a9409cf6efe90c60b17f8eb09cebc29dfb29c5e16deb14b
[INFO] running `Command { std: "docker" "start" "-a" "02955b8a44beaf817a9409cf6efe90c60b17f8eb09cebc29dfb29c5e16deb14b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "02955b8a44beaf817a9409cf6efe90c60b17f8eb09cebc29dfb29c5e16deb14b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "02955b8a44beaf817a9409cf6efe90c60b17f8eb09cebc29dfb29c5e16deb14b", kill_on_drop: false }`
[INFO] [stdout] 02955b8a44beaf817a9409cf6efe90c60b17f8eb09cebc29dfb29c5e16deb14b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] [stdout] 9b36b86ba2390c172ec6da06b43b33bd82e7fffea31f88b7f3f95abc1e703a98
[INFO] running `Command { std: "docker" "start" "-a" "9b36b86ba2390c172ec6da06b43b33bd82e7fffea31f88b7f3f95abc1e703a98", kill_on_drop: false }`
[INFO] [stderr]    Compiling rbspy-ruby-structs v0.8.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 47.67s
[INFO] running `Command { std: "docker" "inspect" "9b36b86ba2390c172ec6da06b43b33bd82e7fffea31f88b7f3f95abc1e703a98", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9b36b86ba2390c172ec6da06b43b33bd82e7fffea31f88b7f3f95abc1e703a98", kill_on_drop: false }`
[INFO] [stdout] 9b36b86ba2390c172ec6da06b43b33bd82e7fffea31f88b7f3f95abc1e703a98
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] 37f33c9d106754039ae4bf2e93a46e42146e9d588d32d2619f526e9e8be91e72
[INFO] running `Command { std: "docker" "start" "-a" "37f33c9d106754039ae4bf2e93a46e42146e9d588d32d2619f526e9e8be91e72", kill_on_drop: false }`
[INFO] [stderr]    Compiling rbspy-ruby-structs v0.8.1 (/opt/rustwide/workdir)
[INFO] [stderr] error: could not compile `rbspy-ruby-structs`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name rbspy_ruby_structs src/lib.rs --error-format=json --json=diagnostic-rendered-ansi --emit=dep-info,link -C embed-bitcode=no -C debuginfo=2 --test -C metadata=86bba996d6ad48b1 -C extra-filename=-86bba996d6ad48b1 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --cap-lints=warn` (signal: 9, SIGKILL: kill)
[INFO] running `Command { std: "docker" "inspect" "37f33c9d106754039ae4bf2e93a46e42146e9d588d32d2619f526e9e8be91e72", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "37f33c9d106754039ae4bf2e93a46e42146e9d588d32d2619f526e9e8be91e72", kill_on_drop: false }`
[INFO] [stdout] 37f33c9d106754039ae4bf2e93a46e42146e9d588d32d2619f526e9e8be91e72