[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] checking poanetwork/poa-ballot-stats against try#e251c42c969d6f8dbaae00e1028489c3a29f8789 for pr-94081
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpoanetwork%2Fpoa-ballot-stats" "/workspace/builds/worker-15/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-15/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/poanetwork/poa-ballot-stats on toolchain e251c42c969d6f8dbaae00e1028489c3a29f8789
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+e251c42c969d6f8dbaae00e1028489c3a29f8789" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", 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-15/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" "+e251c42c969d6f8dbaae00e1028489c3a29f8789" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] [stderr]  Downloading crates ...
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+e251c42c969d6f8dbaae00e1028489c3a29f8789" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 96d006c8e81ff8e54c672fe3895bf8176c3eefd2e14c6d62a92a9fe6684854c6
[INFO] running `Command { std: "docker" "start" "-a" "96d006c8e81ff8e54c672fe3895bf8176c3eefd2e14c6d62a92a9fe6684854c6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "96d006c8e81ff8e54c672fe3895bf8176c3eefd2e14c6d62a92a9fe6684854c6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "96d006c8e81ff8e54c672fe3895bf8176c3eefd2e14c6d62a92a9fe6684854c6", kill_on_drop: false }`
[INFO] [stdout] 96d006c8e81ff8e54c672fe3895bf8176c3eefd2e14c6d62a92a9fe6684854c6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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=forbid" "-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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+e251c42c969d6f8dbaae00e1028489c3a29f8789" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8d1103572847a9b3db7ad2edb96ccaf714d3d2f21144e481a107c507d72d739e
[INFO] running `Command { std: "docker" "start" "-a" "8d1103572847a9b3db7ad2edb96ccaf714d3d2f21144e481a107c507d72d739e", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.45
[INFO] [stderr]     Checking cfg-if v0.1.6
[INFO] [stderr]    Compiling semver-parser v0.7.0
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[INFO] [stderr]     Checking lazy_static v1.2.0
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[INFO] [stderr]     Checking nodrop v0.1.13
[INFO] [stderr]    Compiling proc-macro2 v0.4.24
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[INFO] [stderr]    Compiling num-integer v0.1.39
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[INFO] [stderr]     Checking slab v0.3.0
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[INFO] [stderr]     Checking percent-encoding v1.0.1
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[INFO] [stderr]     Checking ethabi-contract v6.0.0
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[INFO] [stderr]     Checking lock_api v0.1.5
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[INFO] [stderr]     Checking num_cpus v1.9.0
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[INFO] [stderr]    Compiling quote v0.6.10
[INFO] [stderr]     Checking num-complex v0.1.43
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[INFO] [stderr]    Compiling ethereum-types-serialize v0.2.1
[INFO] [stderr]    Compiling serde_json v1.0.33
[INFO] [stderr]    Compiling rand_chacha v0.1.0
[INFO] [stderr]    Compiling parking_lot_core v0.3.1
[INFO] [stderr]    Compiling rand_pcg v0.1.1
[INFO] [stderr]    Compiling rand v0.6.1
[INFO] [stderr]    Compiling parking_lot_core v0.4.0
[INFO] [stderr]    Compiling backtrace-sys v0.1.24
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[INFO] [stderr]     Checking ethereum-types v0.4.0
[INFO] [stderr]     Checking mio-uds v0.6.7
[INFO] [stderr]     Checking parking_lot v0.6.4
[INFO] [stderr]     Checking tokio-codec v0.1.1
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[INFO] [stderr]     Checking tokio-uds v0.2.4
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[INFO] [stderr]     Checking tokio-udp v0.1.3
[INFO] [stderr]     Checking num-rational v0.1.42
[INFO] [stderr]     Checking tokio-threadpool v0.1.9
[INFO] [stderr]    Compiling backtrace v0.3.12
[INFO] [stderr]     Checking num v0.1.42
[INFO] [stderr]     Checking parking_lot v0.7.0
[INFO] [stderr]     Checking parse_duration v1.0.1
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[INFO] [stderr]     Checking tokio-fs v0.1.4
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[INFO] [stderr]     Checking h2 v0.1.14
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[INFO] [stderr]    Compiling serde_derive v1.0.82
[INFO] [stderr]     Checking hyper v0.12.18
[INFO] [stderr]     Checking hyper-tls v0.3.1
[INFO] [stderr]     Checking jsonrpc-core v8.0.1
[INFO] [stderr]    Compiling ethabi v6.1.0
[INFO] [stderr]     Checking web3 v0.5.1
[INFO] [stderr]    Compiling ethabi-derive v6.0.2
[INFO] [stderr]     Checking poa-ballot-stats v0.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/error.rs:8:1
[INFO] [stdout]    |
[INFO] [stdout] 8  | / error_chain! {
[INFO] [stdout] 9  | |     foreign_links {
[INFO] [stdout] 10 | |         Ethabi(ethabi::Error);
[INFO] [stdout] 11 | |         Web3(web3::Error);
[INFO] [stdout] ...  |
[INFO] [stdout] 23 | |     }
[INFO] [stdout] 24 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout]    = note: this warning originates in the macro `impl_error_chain_processed` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/error.rs:8:1
[INFO] [stdout]    |
[INFO] [stdout] 8  | / error_chain! {
[INFO] [stdout] 9  | |     foreign_links {
[INFO] [stdout] 10 | |         Ethabi(ethabi::Error);
[INFO] [stdout] 11 | |         Web3(web3::Error);
[INFO] [stdout] ...  |
[INFO] [stdout] 23 | |     }
[INFO] [stdout] 24 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout]    = note: this warning originates in the macro `impl_error_chain_processed` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::cause`: replaced by Error::source, which can support downcasting
[INFO] [stdout]   --> src/error.rs:8:1
[INFO] [stdout]    |
[INFO] [stdout] 8  | / error_chain! {
[INFO] [stdout] 9  | |     foreign_links {
[INFO] [stdout] 10 | |         Ethabi(ethabi::Error);
[INFO] [stdout] 11 | |         Web3(web3::Error);
[INFO] [stdout] ...  |
[INFO] [stdout] 23 | |     }
[INFO] [stdout] 24 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `impl_error_chain_processed` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::cause`: replaced by Error::source, which can support downcasting
[INFO] [stdout]   --> src/error.rs:8:1
[INFO] [stdout]    |
[INFO] [stdout] 8  | / error_chain! {
[INFO] [stdout] 9  | |     foreign_links {
[INFO] [stdout] 10 | |         Ethabi(ethabi::Error);
[INFO] [stdout] 11 | |         Web3(web3::Error);
[INFO] [stdout] ...  |
[INFO] [stdout] 23 | |     }
[INFO] [stdout] 24 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `impl_error_chain_processed` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 32.34s
[INFO] running `Command { std: "docker" "inspect" "8d1103572847a9b3db7ad2edb96ccaf714d3d2f21144e481a107c507d72d739e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8d1103572847a9b3db7ad2edb96ccaf714d3d2f21144e481a107c507d72d739e", kill_on_drop: false }`
[INFO] [stdout] 8d1103572847a9b3db7ad2edb96ccaf714d3d2f21144e481a107c507d72d739e