[INFO] fetching crate niftygate-bindings 0.6.3...
[INFO] testing niftygate-bindings-0.6.3 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate niftygate-bindings 0.6.3 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate niftygate-bindings 0.6.3 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 niftygate-bindings 0.6.3
[INFO] finished tweaking crates.io crate niftygate-bindings 0.6.3
[INFO] tweaked toml for crates.io crate niftygate-bindings 0.6.3 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] 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 arrayvec v0.7.1
[INFO] [stderr]   Downloaded ethbloom v0.11.0
[INFO] [stderr]   Downloaded fixed-hash v0.7.0
[INFO] [stderr]   Downloaded parity-scale-codec v2.2.0
[INFO] [stderr]   Downloaded ethcontract-common v0.15.3
[INFO] [stderr]   Downloaded uint v0.9.1
[INFO] [stderr]   Downloaded ethcontract-generate v0.15.3
[INFO] [stderr]   Downloaded parity-scale-codec-derive v2.2.0
[INFO] [stderr]   Downloaded ethabi v14.1.0
[INFO] [stderr]   Downloaded jsonrpc-core v18.0.0
[INFO] [stderr]   Downloaded secp256k1-sys v0.4.1
[INFO] [stderr]   Downloaded primitive-types v0.9.1
[INFO] [stderr]   Downloaded rlp v0.5.1
[INFO] [stderr]   Downloaded ethereum-types v0.11.0
[INFO] [stderr]   Downloaded secp256k1 v0.20.3
[INFO] [stderr]   Downloaded ethcontract v0.15.3
[INFO] [stderr]   Downloaded web3 v0.17.0
[INFO] [stderr]   Downloaded ethcontract-derive v0.15.3
[INFO] [stderr]   Downloaded impl-codec v0.5.1
[INFO] [stderr]   Downloaded impl-rlp v0.3.0
[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] 9eaeacd84a8ae9c2f7f7adf413a93d1fc8c2f4bfc131a184ba08c6844653a458
[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" "9eaeacd84a8ae9c2f7f7adf413a93d1fc8c2f4bfc131a184ba08c6844653a458", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9eaeacd84a8ae9c2f7f7adf413a93d1fc8c2f4bfc131a184ba08c6844653a458", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9eaeacd84a8ae9c2f7f7adf413a93d1fc8c2f4bfc131a184ba08c6844653a458", kill_on_drop: false }`
[INFO] [stdout] 9eaeacd84a8ae9c2f7f7adf413a93d1fc8c2f4bfc131a184ba08c6844653a458
[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] 9e9eb999a2e78df53abe9f1542dae312051e3346600e08b52e4fed1e439ab41e
[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" "9e9eb999a2e78df53abe9f1542dae312051e3346600e08b52e4fed1e439ab41e", kill_on_drop: false }`
[INFO] [stderr]    Compiling bytes v1.1.0
[INFO] [stderr]    Compiling uint v0.9.1
[INFO] [stderr]    Compiling secp256k1 v0.20.3
[INFO] [stderr]    Compiling rand v0.8.4
[INFO] [stderr]    Compiling impl-serde v0.3.1
[INFO] [stderr]    Compiling futures-executor v0.3.17
[INFO] [stderr]    Compiling proc-macro-crate v1.0.0
[INFO] [stderr]    Compiling futures v0.3.17
[INFO] [stderr]    Compiling parity-scale-codec-derive v2.2.0
[INFO] [stderr]    Compiling rlp v0.5.1
[INFO] [stderr]    Compiling jsonrpc-core v18.0.0
[INFO] [stderr]    Compiling impl-rlp v0.3.0
[INFO] [stderr]    Compiling fixed-hash v0.7.0
[INFO] [stderr]    Compiling ethbloom v0.11.0
[INFO] [stderr]    Compiling parity-scale-codec v2.2.0
[INFO] [stderr]    Compiling impl-codec v0.5.1
[INFO] [stderr]    Compiling primitive-types v0.9.1
[INFO] [stderr]    Compiling ethereum-types v0.11.0
[INFO] [stderr]    Compiling ethabi v14.1.0
[INFO] [stderr]    Compiling web3 v0.17.0
[INFO] [stderr]    Compiling ethcontract-common v0.15.3
[INFO] [stderr]    Compiling ethcontract-generate v0.15.3
[INFO] [stderr]    Compiling ethcontract-derive v0.15.3
[INFO] [stderr]    Compiling ethcontract v0.15.3
[INFO] [stderr]    Compiling niftygate-bindings v0.6.3 (/opt/rustwide/workdir)
[INFO] [stderr] error: could not compile `niftygate-bindings`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name niftygate_bindings --edition=2018 src/lib.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no -C debuginfo=2 -C metadata=d9bfe1d05f6d4099 -C extra-filename=-d9bfe1d05f6d4099 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern ethcontract=/opt/rustwide/target/debug/deps/libethcontract-b235eddaa241f2f5.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-97a7bc8bf9f800de.rmeta --cap-lints=warn -L native=/opt/rustwide/target/debug/build/secp256k1-sys-5f892bbfea874d01/out` (signal: 9, SIGKILL: kill)
[INFO] running `Command { std: "docker" "inspect" "9e9eb999a2e78df53abe9f1542dae312051e3346600e08b52e4fed1e439ab41e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9e9eb999a2e78df53abe9f1542dae312051e3346600e08b52e4fed1e439ab41e", kill_on_drop: false }`
[INFO] [stdout] 9e9eb999a2e78df53abe9f1542dae312051e3346600e08b52e4fed1e439ab41e