[INFO] cloning repository https://github.com/austinhyde/adventofcode20
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/austinhyde/adventofcode20" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faustinhyde%2Fadventofcode20", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faustinhyde%2Fadventofcode20'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3383bab50da4ce80fe57d2a9b422b579301c7220
[INFO] checking austinhyde/adventofcode20 against try#4a23c45c7893f1416456144e3883cc48ea91722e for pr-82322
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faustinhyde%2Fadventofcode20" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/austinhyde/adventofcode20 on toolchain 4a23c45c7893f1416456144e3883cc48ea91722e
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4a23c45c7893f1416456144e3883cc48ea91722e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/austinhyde/adventofcode20
[INFO] finished tweaking git repo https://github.com/austinhyde/adventofcode20
[INFO] tweaked toml for git repo https://github.com/austinhyde/adventofcode20 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/austinhyde/adventofcode20 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4a23c45c7893f1416456144e3883cc48ea91722e" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+4a23c45c7893f1416456144e3883cc48ea91722e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5b90adedd7a7d0fa81c33883cccae1eda0a40da319745fff1e1050272af95a8a
[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" "5b90adedd7a7d0fa81c33883cccae1eda0a40da319745fff1e1050272af95a8a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5b90adedd7a7d0fa81c33883cccae1eda0a40da319745fff1e1050272af95a8a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5b90adedd7a7d0fa81c33883cccae1eda0a40da319745fff1e1050272af95a8a", kill_on_drop: false }`
[INFO] [stdout] 5b90adedd7a7d0fa81c33883cccae1eda0a40da319745fff1e1050272af95a8a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+4a23c45c7893f1416456144e3883cc48ea91722e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6397f49b02646494138f087927dcf431906d79a4b7ba9a6ceed6e7bad5023697
[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" "6397f49b02646494138f087927dcf431906d79a4b7ba9a6ceed6e7bad5023697", kill_on_drop: false }`
[INFO] [stderr]     Checking lib v0.1.0 (/opt/rustwide/workdir/lib)
[INFO] [stderr]     Checking day1-expense-report v0.1.0 (/opt/rustwide/workdir/day1-expense-report)
[INFO] [stderr]     Checking day4-passport-processing v0.1.0 (/opt/rustwide/workdir/day4-passport-processing)
[INFO] [stderr]     Checking day2-password-policy v0.1.0 (/opt/rustwide/workdir/day2-password-policy)
[INFO] [stderr]     Checking day3-toboggan-trajectory v0.1.0 (/opt/rustwide/workdir/day3-toboggan-trajectory)
[INFO] [stderr]     Checking day6-custom-customs v0.1.0 (/opt/rustwide/workdir/day6-custom-customs)
[INFO] [stderr]     Checking day5-binary-boarding v0.1.0 (/opt/rustwide/workdir/day5-binary-boarding)
[INFO] [stdout] warning: unused variable: `input`
[INFO] [stdout]   --> day4-passport-processing/src/main.rs:46:10
[INFO] [stdout]    |
[INFO] [stdout] 46 | fn part2(input: &str) -> usize {
[INFO] [stdout]    |          ^^^^^ help: if this is intentional, prefix it with an underscore: `_input`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `input`
[INFO] [stdout]   --> day4-passport-processing/src/main.rs:46:10
[INFO] [stdout]    |
[INFO] [stdout] 46 | fn part2(input: &str) -> usize {
[INFO] [stdout]    |          ^^^^^ help: if this is intentional, prefix it with an underscore: `_input`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.03s
[INFO] running `Command { std: "docker" "inspect" "6397f49b02646494138f087927dcf431906d79a4b7ba9a6ceed6e7bad5023697", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6397f49b02646494138f087927dcf431906d79a4b7ba9a6ceed6e7bad5023697", kill_on_drop: false }`
[INFO] [stdout] 6397f49b02646494138f087927dcf431906d79a4b7ba9a6ceed6e7bad5023697