[INFO] cloning repository https://github.com/poanetwork/poa-ballot-stats
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/poanetwork/poa-ballot-stats" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpoanetwork%2Fpoa-ballot-stats", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpoanetwork%2Fpoa-ballot-stats'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 527d4070637fcfc850afe25478f0afa1e5910255
[INFO] documenting poanetwork/poa-ballot-stats against 1.46.0 for beta-1.47-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpoanetwork%2Fpoa-ballot-stats" "/workspace/builds/worker-5/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/poanetwork/poa-ballot-stats on toolchain 1.46.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/poanetwork/poa-ballot-stats
[INFO] finished tweaking git repo https://github.com/poanetwork/poa-ballot-stats
[INFO] tweaked toml for git repo https://github.com/poanetwork/poa-ballot-stats written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/poanetwork/poa-ballot-stats already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.46.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b36c7f6dc9ba1c07c277085998c3093e137faee683549fa7ade4123e25e831f4
[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" "b36c7f6dc9ba1c07c277085998c3093e137faee683549fa7ade4123e25e831f4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b36c7f6dc9ba1c07c277085998c3093e137faee683549fa7ade4123e25e831f4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b36c7f6dc9ba1c07c277085998c3093e137faee683549fa7ade4123e25e831f4", kill_on_drop: false }`
[INFO] [stdout] b36c7f6dc9ba1c07c277085998c3093e137faee683549fa7ade4123e25e831f4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.46.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 974780bd9384f21d0277310d81cf8df642ae9da8dcc8c07aa2d2237be2ecb6d3
[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" "974780bd9384f21d0277310d81cf8df642ae9da8dcc8c07aa2d2237be2ecb6d3", kill_on_drop: false }`
[INFO] [stderr]    Compiling cc v1.0.26
[INFO] [stderr]    Compiling serde v1.0.82
[INFO] [stderr]    Compiling heapsize v0.4.2
[INFO] [stderr]    Compiling crunchy v0.1.6
[INFO] [stderr]    Compiling num-integer v0.1.39
[INFO] [stderr]    Compiling rustc-hex v2.0.1
[INFO] [stderr]    Compiling rustc-demangle v0.1.9
[INFO] [stderr]     Checking string v0.1.2
[INFO] [stderr]    Compiling itoa v0.4.3
[INFO] [stderr]     Checking rustc-hex v1.0.0
[INFO] [stderr]     Checking ethabi-contract v6.0.0
[INFO] [stderr]     Checking arrayvec v0.4.8
[INFO] [stderr]     Checking tokio-timer v0.1.2
[INFO] [stderr]    Compiling heck v0.3.0
[INFO] [stderr]     Checking tokio-current-thread v0.1.4
[INFO] [stderr]     Checking tokio-timer v0.2.8
[INFO] [stderr]    Compiling ryu v0.2.7
[INFO] [stderr]     Checking num-complex v0.1.43
[INFO] [stderr]     Checking iovec v0.1.2
[INFO] [stderr]     Checking net2 v0.2.33
[INFO] [stderr]     Checking time v0.1.40
[INFO] [stderr]    Compiling rand v0.4.3
[INFO] [stderr]     Checking memchr v2.1.2
[INFO] [stderr]     Checking crossbeam-epoch v0.6.1
[INFO] [stderr]     Checking futures-cpupool v0.1.8
[INFO] [stderr]     Checking rand_chacha v0.1.0
[INFO] [stderr]     Checking parking_lot_core v0.3.1
[INFO] [stderr]     Checking rand_pcg v0.1.1
[INFO] [stderr]     Checking bytes v0.4.11
[INFO] [stderr]    Compiling serde_derive v1.0.82
[INFO] [stderr]     Checking crossbeam-deque v0.6.2
[INFO] [stderr]     Checking rand v0.6.1
[INFO] [stderr]     Checking mio v0.6.16
[INFO] [stderr]    Compiling tiny-keccak v1.4.2
[INFO] [stderr]     Checking parking_lot v0.6.4
[INFO] [stderr]     Checking fixed-hash v0.2.5
[INFO] [stderr]     Checking uint v0.4.1
[INFO] [stderr]     Checking tokio-io v0.1.10
[INFO] [stderr]     Checking http v0.1.14
[INFO] [stderr]     Checking aho-corasick v0.6.9
[INFO] [stderr]     Checking num-bigint v0.1.44
[INFO] [stderr]     Checking num-iter v0.1.37
[INFO] [stderr]     Checking regex v0.2.11
[INFO] [stderr]     Checking mio-uds v0.6.7
[INFO] [stderr]     Checking tokio-threadpool v0.1.9
[INFO] [stderr]     Checking parking_lot_core v0.4.0
[INFO] [stderr]     Checking tokio-reactor v0.1.7
[INFO] [stderr]     Checking tokio-codec v0.1.1
[INFO] [stderr]    Compiling backtrace-sys v0.1.24
[INFO] [stderr]    Compiling openssl-sys v0.9.39
[INFO] [stderr]     Checking tokio-tcp v0.1.2
[INFO] [stderr]     Checking tokio-udp v0.1.3
[INFO] [stderr]     Checking tokio-uds v0.2.4
[INFO] [stderr]     Checking parking_lot v0.7.0
[INFO] [stderr]     Checking num-rational v0.1.42
[INFO] [stderr]     Checking tokio-fs v0.1.4
[INFO] [stderr]     Checking num v0.1.42
[INFO] [stderr]    Compiling openssl v0.10.15
[INFO] [stderr]    Compiling native-tls v0.2.2
[INFO] [stderr]     Checking tokio v0.1.13
[INFO] [stderr]     Checking parse_duration v1.0.1
[INFO] [stderr]     Checking tokio-core v0.1.17
[INFO] [stderr]    Compiling backtrace v0.3.12
[INFO] [stderr]     Checking h2 v0.1.14
[INFO] [stderr]     Checking error-chain v0.12.0
[INFO] [stderr]     Checking ethereum-types-serialize v0.2.1
[INFO] [stderr]     Checking serde_json v1.0.33
[INFO] [stderr]     Checking hyper v0.12.18
[INFO] [stderr]     Checking ethbloom v0.5.0
[INFO] [stderr]     Checking ethereum-types v0.4.0
[INFO] [stderr]     Checking jsonrpc-core v8.0.1
[INFO] [stderr]     Checking ethabi v6.1.0
[INFO] [stderr]     Checking hyper-tls v0.3.1
[INFO] [stderr]     Checking web3 v0.5.1
[INFO] [stderr]    Compiling ethabi-derive v6.0.2
[INFO] [stderr]  Documenting poa-ballot-stats v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 57.21s
[INFO] running `Command { std: "docker" "inspect" "974780bd9384f21d0277310d81cf8df642ae9da8dcc8c07aa2d2237be2ecb6d3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "974780bd9384f21d0277310d81cf8df642ae9da8dcc8c07aa2d2237be2ecb6d3", kill_on_drop: false }`
[INFO] [stdout] 974780bd9384f21d0277310d81cf8df642ae9da8dcc8c07aa2d2237be2ecb6d3