[INFO] fetching crate ckb-chain 0.100.0-rc5...
[INFO] testing ckb-chain-0.100.0-rc5 against 1.55.0 for beta-1.56-1
[INFO] extracting crate ckb-chain 0.100.0-rc5 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate ckb-chain 0.100.0-rc5 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ckb-chain 0.100.0-rc5
[INFO] finished tweaking crates.io crate ckb-chain 0.100.0-rc5
[INFO] tweaked toml for crates.io crate ckb-chain 0.100.0-rc5 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "+1.55.0" "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] 1bb325ad1b004da3a5fdb13d26ec5b1ce32866a67110c1f60d6799dd3c60bb3f
[INFO] running `Command { std: "docker" "start" "-a" "1bb325ad1b004da3a5fdb13d26ec5b1ce32866a67110c1f60d6799dd3c60bb3f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1bb325ad1b004da3a5fdb13d26ec5b1ce32866a67110c1f60d6799dd3c60bb3f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1bb325ad1b004da3a5fdb13d26ec5b1ce32866a67110c1f60d6799dd3c60bb3f", kill_on_drop: false }`
[INFO] [stdout] 1bb325ad1b004da3a5fdb13d26ec5b1ce32866a67110c1f60d6799dd3c60bb3f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 91b54c70fe00e1ef6daf3d54e40b06fad78d4d603b358e0a695cdf9c79690b4b
[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" "91b54c70fe00e1ef6daf3d54e40b06fad78d4d603b358e0a695cdf9c79690b4b", kill_on_drop: false }`
[INFO] [stderr]    Compiling is_sorted v0.1.1
[INFO] [stderr]    Compiling ckb-channel v0.100.0-rc5
[INFO] [stderr]    Compiling numext-constructor v0.1.6
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]    Compiling futures-util v0.3.17
[INFO] [stderr]    Compiling ckb-librocksdb-sys v6.20.3
[INFO] [stderr]    Compiling goblin v0.4.0
[INFO] [stderr]    Compiling goblin v0.2.3
[INFO] [stderr]    Compiling openssl v0.10.36
[INFO] [stderr]    Compiling ckb-system-scripts v0.5.3
[INFO] [stderr]    Compiling ckb-rust-unstable-port v0.100.0-rc5
[INFO] [stderr] error: could not compile `futures-util`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name futures_util --edition=2018 /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/futures-util-0.3.17/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no -C debuginfo=2 --cfg 'feature="alloc"' --cfg 'feature="async-await"' --cfg 'feature="async-await-macro"' --cfg 'feature="channel"' --cfg 'feature="futures-channel"' --cfg 'feature="futures-io"' --cfg 'feature="futures-macro"' --cfg 'feature="futures-sink"' --cfg 'feature="io"' --cfg 'feature="memchr"' --cfg 'feature="proc-macro-hack"' --cfg 'feature="proc-macro-nested"' --cfg 'feature="sink"' --cfg 'feature="slab"' --cfg 'feature="std"' -C metadata=7da728b6dc77b923 -C extra-filename=-7da728b6dc77b923 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern futures_channel=/opt/rustwide/target/debug/deps/libfutures_channel-d66e8dcd181e3c69.rmeta --extern futures_core=/opt/rustwide/target/debug/deps/libfutures_core-f3d5418223d2fe38.rmeta --extern futures_io=/opt/rustwide/target/debug/deps/libfutures_io-0de4ea5d52cd3d44.rmeta --extern futures_macro=/opt/rustwide/target/debug/deps/libfutures_macro-5139dffb4513ba45.so --extern futures_sink=/opt/rustwide/target/debug/deps/libfutures_sink-54941fc5ee35e3a0.rmeta --extern futures_task=/opt/rustwide/target/debug/deps/libfutures_task-304962a425599f26.rmeta --extern memchr=/opt/rustwide/target/debug/deps/libmemchr-0f592fda00c64810.rmeta --extern pin_project_lite=/opt/rustwide/target/debug/deps/libpin_project_lite-eca84dd3ea8e853e.rmeta --extern pin_utils=/opt/rustwide/target/debug/deps/libpin_utils-179c4ec3b1bb6929.rmeta --extern proc_macro_hack=/opt/rustwide/target/debug/deps/libproc_macro_hack-fb27140ee776283d.so --extern proc_macro_nested=/opt/rustwide/target/debug/deps/libproc_macro_nested-8ca1c391270dc1b9.rmeta --extern slab=/opt/rustwide/target/debug/deps/libslab-8a986d953e272c90.rmeta --cap-lints allow --cap-lints=warn --cfg fn_like_proc_macro` (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] 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] 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] 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" "91b54c70fe00e1ef6daf3d54e40b06fad78d4d603b358e0a695cdf9c79690b4b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "91b54c70fe00e1ef6daf3d54e40b06fad78d4d603b358e0a695cdf9c79690b4b", kill_on_drop: false }`
[INFO] [stdout] 91b54c70fe00e1ef6daf3d54e40b06fad78d4d603b358e0a695cdf9c79690b4b