[INFO] fetching crate ckb-chain-iter 0.37.0...
[INFO] checking ckb-chain-iter-0.37.0 against beta for pr-78714
[INFO] extracting crate ckb-chain-iter 0.37.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate ckb-chain-iter 0.37.0 on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ckb-chain-iter 0.37.0
[INFO] finished tweaking crates.io crate ckb-chain-iter 0.37.0
[INFO] tweaked toml for crates.io crate ckb-chain-iter 0.37.0 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "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" "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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 67501c8596ce42539620c68c20cf71d00c2b18747218e18134de1f33c9bfa99b
[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" "67501c8596ce42539620c68c20cf71d00c2b18747218e18134de1f33c9bfa99b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "67501c8596ce42539620c68c20cf71d00c2b18747218e18134de1f33c9bfa99b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "67501c8596ce42539620c68c20cf71d00c2b18747218e18134de1f33c9bfa99b", kill_on_drop: false }`
[INFO] [stdout] 67501c8596ce42539620c68c20cf71d00c2b18747218e18134de1f33c9bfa99b
[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=forbid" "-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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--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] 758cfe8f22d13dcc786205254b44d4be73ea0f8903eaa19e9a2197f723c04ca5
[INFO] running `Command { std: "docker" "start" "-a" "758cfe8f22d13dcc786205254b44d4be73ea0f8903eaa19e9a2197f723c04ca5", kill_on_drop: false }`
[INFO] [stderr]    Compiling numext-constructor v0.1.6
[INFO] [stderr]     Checking tokio v0.2.22
[INFO] [stderr]     Checking ckb-occupied-capacity v0.37.0
[INFO] [stderr]     Checking ckb-fixed-hash v0.37.0
[INFO] [stderr]     Checking openssl-sys v0.9.58
[INFO] [stderr]     Checking sentry-types v0.11.0
[INFO] [stderr]    Compiling ckb-librocksdb-sys v6.7.4
[INFO] [stderr]    Compiling tentacle-secio v0.4.0
[INFO] [stderr]     Checking ring v0.16.12
[INFO] [stderr]    Compiling ckb-system-scripts v0.5.1
[INFO] [stderr]    Compiling ckb-error v0.37.0
[INFO] [stderr]     Checking ckb-crypto v0.37.0
[INFO] [stderr]     Checking openssl v0.10.30
[INFO] [stderr] error: could not compile `tokio`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name tokio --edition=2018 /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/tokio-0.2.22/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type lib --emit=dep-info,metadata -C embed-bitcode=no -C debuginfo=2 --cfg 'feature="default"' --cfg 'feature="dns"' --cfg 'feature="futures-core"' --cfg 'feature="io-driver"' --cfg 'feature="io-util"' --cfg 'feature="iovec"' --cfg 'feature="lazy_static"' --cfg 'feature="memchr"' --cfg 'feature="mio"' --cfg 'feature="rt-core"' --cfg 'feature="slab"' --cfg 'feature="stream"' --cfg 'feature="tcp"' --cfg 'feature="time"' -C metadata=dd5695402c843ba9 -C extra-filename=-dd5695402c843ba9 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern bytes=/opt/rustwide/target/debug/deps/libbytes-221085c1b82f24c6.rmeta --extern futures_core=/opt/rustwide/target/debug/deps/libfutures_core-b1bf0cc043a0832b.rmeta --extern iovec=/opt/rustwide/target/debug/deps/libiovec-12519902d11dddc2.rmeta --extern lazy_static=/opt/rustwide/target/debug/deps/liblazy_static-db88f49d9e5662e7.rmeta --extern memchr=/opt/rustwide/target/debug/deps/libmemchr-459b76bc8eccd9f6.rmeta --extern mio=/opt/rustwide/target/debug/deps/libmio-eda1e4718a27dcc3.rmeta --extern pin_project_lite=/opt/rustwide/target/debug/deps/libpin_project_lite-1af37d3eecb43644.rmeta --extern slab=/opt/rustwide/target/debug/deps/libslab-e0e0e35ef9a5003f.rmeta --cap-lints allow --cap-lints=forbid` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] The following warnings were emitted during compilation:
[INFO] [stderr] 
[INFO] [stderr] warning: c++: fatal error: Killed signal terminated program cc1plus
[INFO] [stderr] warning: compilation terminated.
[INFO] [stderr] warning: c++: fatal error: Killed signal terminated program cc1plus
[INFO] [stderr] warning: compilation terminated.
[INFO] [stderr] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "758cfe8f22d13dcc786205254b44d4be73ea0f8903eaa19e9a2197f723c04ca5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "758cfe8f22d13dcc786205254b44d4be73ea0f8903eaa19e9a2197f723c04ca5", kill_on_drop: false }`
[INFO] [stdout] 758cfe8f22d13dcc786205254b44d4be73ea0f8903eaa19e9a2197f723c04ca5