[INFO] fetching crate ibc-relayer-cli 0.7.0...
[INFO] testing ibc-relayer-cli-0.7.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate ibc-relayer-cli 0.7.0 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate ibc-relayer-cli 0.7.0 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 ibc-relayer-cli 0.7.0
[INFO] finished tweaking crates.io crate ibc-relayer-cli 0.7.0
[INFO] tweaked toml for crates.io crate ibc-relayer-cli 0.7.0 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate crates.io crate ibc-relayer-cli 0.7.0 already has a lockfile, it will not be regenerated
[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-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] [stdout] 6d0ea0b916da09d379e5b9e00fbf5a25bfd2e9fc3f31b84a278faed7a81a68cc
[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" "6d0ea0b916da09d379e5b9e00fbf5a25bfd2e9fc3f31b84a278faed7a81a68cc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6d0ea0b916da09d379e5b9e00fbf5a25bfd2e9fc3f31b84a278faed7a81a68cc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6d0ea0b916da09d379e5b9e00fbf5a25bfd2e9fc3f31b84a278faed7a81a68cc", kill_on_drop: false }`
[INFO] [stdout] 6d0ea0b916da09d379e5b9e00fbf5a25bfd2e9fc3f31b84a278faed7a81a68cc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] 79a71ad499e0c2f184c67b8788cf0f9876c834e78f241340d23e2c3ec31f656a
[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" "79a71ad499e0c2f184c67b8788cf0f9876c834e78f241340d23e2c3ec31f656a", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.100
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling serde v1.0.129
[INFO] [stderr]    Compiling subtle v2.4.1
[INFO] [stderr]    Compiling futures-io v0.3.16
[INFO] [stderr]    Compiling cpufeatures v0.1.5
[INFO] [stderr]    Compiling const-oid v0.6.0
[INFO] [stderr]    Compiling eyre v0.6.5
[INFO] [stderr]    Compiling protobuf v2.25.1
[INFO] [stderr]    Compiling tower-layer v0.3.1
[INFO] [stderr]    Compiling prometheus v0.12.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.5
[INFO] [stderr]    Compiling ascii v1.0.0
[INFO] [stderr]    Compiling bech32 v0.8.1
[INFO] [stderr]    Compiling uuid v0.8.2
[INFO] [stderr]    Compiling sha1 v0.6.0
[INFO] [stderr]    Compiling signal-hook v0.3.9
[INFO] [stderr]    Compiling retry v1.3.0
[INFO] [stderr]    Compiling canonical-path v2.0.2
[INFO] [stderr]    Compiling ibc-relayer-cli v0.7.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling tokio v1.10.0
[INFO] [stderr]    Compiling ring v0.16.20
[INFO] [stderr]    Compiling backtrace v0.3.61
[INFO] [stderr]    Compiling brotli-sys v0.3.2
[INFO] [stderr]    Compiling secp256k1-sys v0.4.1
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling http v0.2.4
[INFO] [stderr]    Compiling fxhash v0.2.1
[INFO] [stderr]    Compiling generational-arena v0.2.8
[INFO] [stderr]    Compiling der v0.4.1
[INFO] [stderr]    Compiling object v0.26.1
[INFO] [stderr]    Compiling twoway v0.1.8
[INFO] [stderr]    Compiling buf_redux v0.8.4
[INFO] [stderr]    Compiling gzip-header v0.3.0
[INFO] [stderr]    Compiling want v0.3.0
[INFO] [stderr]    Compiling tracing-log v0.1.2
[INFO] [stderr]    Compiling block-buffer v0.9.0
[INFO] [stderr]    Compiling crypto-mac v0.11.1
[INFO] [stderr]    Compiling crypto-mac v0.8.0
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]    Compiling serde_derive v1.0.129
[INFO] [stderr]    Compiling tracing-attributes v0.1.15
[INFO] [stderr]    Compiling thiserror-impl v1.0.26
[INFO] [stderr]    Compiling prost-derive v0.7.0
[INFO] [stderr]    Compiling num-derive v0.3.3
[INFO] [stderr]    Compiling serde_repr v0.1.7
[INFO] [stderr]    Compiling darling_core v0.10.2
[INFO] [stderr]    Compiling contracts v0.4.0
[INFO] [stderr]    Compiling derive_more v0.99.16
[INFO] [stderr]    Compiling gumdrop_derive v0.7.0
[INFO] [stderr]    Compiling num-rational v0.2.4
[INFO] [stderr]    Compiling sha2 v0.9.5
[INFO] [stderr]    Compiling sha-1 v0.9.7
[INFO] [stderr]    Compiling ripemd160 v0.9.1
[INFO] [stderr]    Compiling sha3 v0.9.1
[INFO] [stderr]    Compiling deflate v0.9.1
[INFO] [stderr]    Compiling zeroize_derive v1.1.0
[INFO] [stderr] error: could not compile `object`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name object --edition=2018 /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/object-0.26.1/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="archive"' --cfg 'feature="coff"' --cfg 'feature="elf"' --cfg 'feature="macho"' --cfg 'feature="pe"' --cfg 'feature="read_core"' --cfg 'feature="unaligned"' -C metadata=66d71d60ef88bcd3 -C extra-filename=-66d71d60ef88bcd3 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern memchr=/opt/rustwide/target/debug/deps/libmemchr-cc2ba12c58cb3149.rmeta --cap-lints allow --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" "79a71ad499e0c2f184c67b8788cf0f9876c834e78f241340d23e2c3ec31f656a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "79a71ad499e0c2f184c67b8788cf0f9876c834e78f241340d23e2c3ec31f656a", kill_on_drop: false }`
[INFO] [stdout] 79a71ad499e0c2f184c67b8788cf0f9876c834e78f241340d23e2c3ec31f656a