[INFO] cloning repository https://github.com/scattenlaeufer/vote_simulator
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/scattenlaeufer/vote_simulator" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fscattenlaeufer%2Fvote_simulator", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fscattenlaeufer%2Fvote_simulator'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ed372f7c8cd4259edf41cfbc96a3920faf2d81c5
[INFO] checking scattenlaeufer/vote_simulator against master#936f2600b6c903b04387f74ed5cbce88bb06d243 for pr-91141
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fscattenlaeufer%2Fvote_simulator" "/workspace/builds/worker-42/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-42/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/scattenlaeufer/vote_simulator on toolchain 936f2600b6c903b04387f74ed5cbce88bb06d243
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/scattenlaeufer/vote_simulator
[INFO] finished tweaking git repo https://github.com/scattenlaeufer/vote_simulator
[INFO] tweaked toml for git repo https://github.com/scattenlaeufer/vote_simulator written to /workspace/builds/worker-42/source/Cargo.toml
[INFO] crate git repo https://github.com/scattenlaeufer/vote_simulator already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "fetch" "--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-42/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-42/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 82789db0d77e7c75f20b46bfac2e66d5dc117e3b31710c43f3ecbdbab895684a
[INFO] running `Command { std: "docker" "start" "-a" "82789db0d77e7c75f20b46bfac2e66d5dc117e3b31710c43f3ecbdbab895684a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "82789db0d77e7c75f20b46bfac2e66d5dc117e3b31710c43f3ecbdbab895684a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "82789db0d77e7c75f20b46bfac2e66d5dc117e3b31710c43f3ecbdbab895684a", kill_on_drop: false }`
[INFO] [stdout] 82789db0d77e7c75f20b46bfac2e66d5dc117e3b31710c43f3ecbdbab895684a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-42/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-42/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c1f07e628b9bfaa4719f45627f9734960a60879802a0f3a109889bd903576352
[INFO] running `Command { std: "docker" "start" "-a" "c1f07e628b9bfaa4719f45627f9734960a60879802a0f3a109889bd903576352", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.102
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]     Checking unicode-width v0.1.9
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking regex-automata v0.1.10
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking ppv-lite86 v0.2.10
[INFO] [stderr]     Checking itoa v0.4.8
[INFO] [stderr]     Checking encode_unicode v0.3.6
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking getrandom v0.2.3
[INFO] [stderr]     Checking dirs v1.0.5
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking bstr v0.2.17
[INFO] [stderr]     Checking csv-core v0.1.10
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking term v0.5.2
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking csv v1.1.6
[INFO] [stderr]     Checking rand v0.8.4
[INFO] [stderr]     Checking prettytable-rs v0.8.0
[INFO] [stderr]     Checking vote_simulator v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `vote`
[INFO] [stdout]   --> src/lib.rs:30:5
[INFO] [stdout]    |
[INFO] [stdout] 30 |     vote: &'a Candidate,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `next_vote`
[INFO] [stdout]   --> src/lib.rs:31:5
[INFO] [stdout]    |
[INFO] [stdout] 31 |     next_vote: Option<&'a Self>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `vote`
[INFO] [stdout]   --> src/lib.rs:30:5
[INFO] [stdout]    |
[INFO] [stdout] 30 |     vote: &'a Candidate,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `next_vote`
[INFO] [stdout]   --> src/lib.rs:31:5
[INFO] [stdout]    |
[INFO] [stdout] 31 |     next_vote: Option<&'a Self>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[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 15.07s
[INFO] running `Command { std: "docker" "inspect" "c1f07e628b9bfaa4719f45627f9734960a60879802a0f3a109889bd903576352", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c1f07e628b9bfaa4719f45627f9734960a60879802a0f3a109889bd903576352", kill_on_drop: false }`
[INFO] [stdout] c1f07e628b9bfaa4719f45627f9734960a60879802a0f3a109889bd903576352