[INFO] fetching crate graphql_client_cli 0.10.0...
[INFO] testing graphql_client_cli-0.10.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate graphql_client_cli 0.10.0 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate graphql_client_cli 0.10.0 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 graphql_client_cli 0.10.0
[INFO] finished tweaking crates.io crate graphql_client_cli 0.10.0
[INFO] tweaked toml for crates.io crate graphql_client_cli 0.10.0 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate crates.io crate graphql_client_cli 0.10.0 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-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] 4aad976403d95eaf2f3c8e7270425e99522209b3e9fb5885e3cd2042c3101962
[INFO] running `Command { std: "docker" "start" "-a" "4aad976403d95eaf2f3c8e7270425e99522209b3e9fb5885e3cd2042c3101962", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4aad976403d95eaf2f3c8e7270425e99522209b3e9fb5885e3cd2042c3101962", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4aad976403d95eaf2f3c8e7270425e99522209b3e9fb5885e3cd2042c3101962", kill_on_drop: false }`
[INFO] [stdout] 4aad976403d95eaf2f3c8e7270425e99522209b3e9fb5885e3cd2042c3101962
[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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] f643ee99a4a5eb4e516f06872000680b91838074d2bc5ba51fe7c04dffaf9cb3
[INFO] running `Command { std: "docker" "start" "-a" "f643ee99a4a5eb4e516f06872000680b91838074d2bc5ba51fe7c04dffaf9cb3", kill_on_drop: false }`
[INFO] [stderr]    Compiling gimli v0.24.0
[INFO] [stderr]    Compiling syn v1.0.73
[INFO] [stderr]    Compiling tokio v1.8.0
[INFO] [stderr]    Compiling futures-util v0.3.15
[INFO] [stderr]    Compiling backtrace v0.3.60
[INFO] [stderr]    Compiling mio v0.7.13
[INFO] [stderr]    Compiling openssl-sys v0.9.65
[INFO] [stderr]    Compiling object v0.25.3
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling combine v3.8.1
[INFO] [stderr]    Compiling regex v1.5.4
[INFO] [stderr]    Compiling serde_derive v1.0.126
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling openssl v0.10.35
[INFO] [stderr]    Compiling structopt-derive v0.4.14
[INFO] [stderr]    Compiling env_logger v0.6.2
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr] error: could not compile `regex`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name regex --edition=2018 /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/regex-1.5.4/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="aho-corasick"' --cfg 'feature="default"' --cfg 'feature="memchr"' --cfg 'feature="perf"' --cfg 'feature="perf-cache"' --cfg 'feature="perf-dfa"' --cfg 'feature="perf-inline"' --cfg 'feature="perf-literal"' --cfg 'feature="std"' --cfg 'feature="unicode"' --cfg 'feature="unicode-age"' --cfg 'feature="unicode-bool"' --cfg 'feature="unicode-case"' --cfg 'feature="unicode-gencat"' --cfg 'feature="unicode-perl"' --cfg 'feature="unicode-script"' --cfg 'feature="unicode-segment"' -C metadata=17cdeefc8882f7b8 -C extra-filename=-17cdeefc8882f7b8 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern aho_corasick=/opt/rustwide/target/debug/deps/libaho_corasick-91bb404f99a06bc7.rmeta --extern memchr=/opt/rustwide/target/debug/deps/libmemchr-6d05701f54cffccc.rmeta --extern regex_syntax=/opt/rustwide/target/debug/deps/libregex_syntax-b77be10fdde4f88a.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" "f643ee99a4a5eb4e516f06872000680b91838074d2bc5ba51fe7c04dffaf9cb3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f643ee99a4a5eb4e516f06872000680b91838074d2bc5ba51fe7c04dffaf9cb3", kill_on_drop: false }`
[INFO] [stdout] f643ee99a4a5eb4e516f06872000680b91838074d2bc5ba51fe7c04dffaf9cb3