[INFO] cloning repository https://github.com/darwinia-network/darwinia-common
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/darwinia-network/darwinia-common" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdarwinia-network%2Fdarwinia-common", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdarwinia-network%2Fdarwinia-common'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 77362e1accbae6e370d5310f107f024f1c82d677
[INFO] documenting darwinia-network/darwinia-common against beta-2021-08-01 for beta-1.55-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdarwinia-network%2Fdarwinia-common" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/darwinia-network/darwinia-common on toolchain beta-2021-08-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/darwinia-network/darwinia-common
[INFO] finished tweaking git repo https://github.com/darwinia-network/darwinia-common
[INFO] tweaked toml for git repo https://github.com/darwinia-network/darwinia-common written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/darwinia-network/darwinia-common already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating git repository `https://github.com/darwinia-network/substrate`
[INFO] [stderr]     Updating git repository `https://github.com/darwinia-network/parity-bridges-common`
[INFO] [stderr]     Updating git repository `https://github.com/darwinia-network/ethabi.git`
[INFO] [stderr]     Updating git repository `https://github.com/darwinia-network/rust-ethash`
[INFO] [stderr]     Updating git repository `https://github.com/encointer/substrate-fixed`
[INFO] [stderr]     Updating git repository `https://github.com/darwinia-network/darwinia-launch`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5409c2dca44d3fb77637fa35a518a10db5f99a28119dc8a926674a99bc21e40c
[INFO] running `Command { std: "docker" "start" "-a" "5409c2dca44d3fb77637fa35a518a10db5f99a28119dc8a926674a99bc21e40c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5409c2dca44d3fb77637fa35a518a10db5f99a28119dc8a926674a99bc21e40c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5409c2dca44d3fb77637fa35a518a10db5f99a28119dc8a926674a99bc21e40c", kill_on_drop: false }`
[INFO] [stdout] 5409c2dca44d3fb77637fa35a518a10db5f99a28119dc8a926674a99bc21e40c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "RUSTDOCFLAGS=--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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "start" "-a" "665dfb6e962a4edb8c8d92b4ddeac3f457decfd8d889008cc7ae31c46b8019b0", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.27
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[INFO] [stderr]     Checking hmac v0.8.1
[INFO] [stderr]     Checking pbkdf2 v0.4.0
[INFO] [stderr]     Checking blake2 v0.9.1
[INFO] [stderr]     Checking stream-cipher v0.7.1
[INFO] [stderr]     Checking aes-soft v0.5.0
[INFO] [stderr] error: could not compile `regex-syntax`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name regex_syntax --edition=2018 /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/regex-syntax-0.6.25/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="default"' --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=b1f5a8f2fb571c3f -C extra-filename=-b1f5a8f2fb571c3f --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --cap-lints allow` (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" "665dfb6e962a4edb8c8d92b4ddeac3f457decfd8d889008cc7ae31c46b8019b0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "665dfb6e962a4edb8c8d92b4ddeac3f457decfd8d889008cc7ae31c46b8019b0", kill_on_drop: false }`
[INFO] [stdout] 665dfb6e962a4edb8c8d92b4ddeac3f457decfd8d889008cc7ae31c46b8019b0
