[INFO] cloning repository https://github.com/cgnivens/goshdarn_advent_2021
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/cgnivens/goshdarn_advent_2021" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcgnivens%2Fgoshdarn_advent_2021", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcgnivens%2Fgoshdarn_advent_2021'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f8f8c320125926764861a0165ee47805dcfe2caa
[INFO] checking cgnivens/goshdarn_advent_2021 against nightly-2024-02-05 for check-cfg-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcgnivens%2Fgoshdarn_advent_2021" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/cgnivens/goshdarn_advent_2021 on toolchain nightly-2024-02-05
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+nightly-2024-02-05" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/cgnivens/goshdarn_advent_2021
[INFO] finished tweaking git repo https://github.com/cgnivens/goshdarn_advent_2021
[INFO] tweaked toml for git repo https://github.com/cgnivens/goshdarn_advent_2021 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/cgnivens/goshdarn_advent_2021 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+nightly-2024-02-05" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded counter v0.5.7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+nightly-2024-02-05" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b2da75bd5ce2b84d0b183d9410d4027efb63f57af4bd654b6b85ebf77960ce19
[INFO] running `Command { std: "docker" "start" "-a" "b2da75bd5ce2b84d0b183d9410d4027efb63f57af4bd654b6b85ebf77960ce19", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b2da75bd5ce2b84d0b183d9410d4027efb63f57af4bd654b6b85ebf77960ce19", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b2da75bd5ce2b84d0b183d9410d4027efb63f57af4bd654b6b85ebf77960ce19", kill_on_drop: false }`
[INFO] [stdout] b2da75bd5ce2b84d0b183d9410d4027efb63f57af4bd654b6b85ebf77960ce19
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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" "RUSTDOCFLAGS=--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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+nightly-2024-02-05" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1c10faef6667e86765f1ada81cf584e8af85e0b58e3e3338463f258fdeba1c91
[INFO] running `Command { std: "docker" "start" "-a" "1c10faef6667e86765f1ada81cf584e8af85e0b58e3e3338463f258fdeba1c91", kill_on_drop: false }`
[INFO] [stderr]     Checking either v1.8.0
[INFO] [stderr]     Checking counter v0.5.7
[INFO] [stderr]     Checking itertools v0.10.5
[INFO] [stderr]     Checking aoc_2021 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `itertools::Itertools`
[INFO] [stdout]   --> src/day3.rs:54:5
[INFO] [stdout]    |
[INFO] [stdout] 54 | use itertools::Itertools;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `counter::Counter`
[INFO] [stdout]   --> src/day3.rs:58:5
[INFO] [stdout]    |
[INFO] [stdout] 58 | use counter::Counter;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `itertools::Itertools`
[INFO] [stdout]   --> src/day3.rs:54:5
[INFO] [stdout]    |
[INFO] [stdout] 54 | use itertools::Itertools;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `counter::Counter`
[INFO] [stdout]   --> src/day3.rs:58:5
[INFO] [stdout]    |
[INFO] [stdout] 58 | use counter::Counter;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lines`
[INFO] [stdout]   --> src/day3.rs:66:13
[INFO] [stdout]    |
[INFO] [stdout] 66 |     let mut lines = reader.lines();
[INFO] [stdout]    |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/day3.rs:62:9
[INFO] [stdout]    |
[INFO] [stdout] 62 |     let mut fh = File::open("data/day3.txt")?;
[INFO] [stdout]    |         ----^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/day3.rs:66:9
[INFO] [stdout]    |
[INFO] [stdout] 66 |     let mut lines = reader.lines();
[INFO] [stdout]    |         ----^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lines`
[INFO] [stdout]   --> src/day3.rs:66:13
[INFO] [stdout]    |
[INFO] [stdout] 66 |     let mut lines = reader.lines();
[INFO] [stdout]    |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/day3.rs:62:9
[INFO] [stdout]    |
[INFO] [stdout] 62 |     let mut fh = File::open("data/day3.txt")?;
[INFO] [stdout]    |         ----^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/day3.rs:66:9
[INFO] [stdout]    |
[INFO] [stdout] 66 |     let mut lines = reader.lines();
[INFO] [stdout]    |         ----^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.95s
[INFO] running `Command { std: "docker" "inspect" "1c10faef6667e86765f1ada81cf584e8af85e0b58e3e3338463f258fdeba1c91", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1c10faef6667e86765f1ada81cf584e8af85e0b58e3e3338463f258fdeba1c91", kill_on_drop: false }`
[INFO] [stdout] 1c10faef6667e86765f1ada81cf584e8af85e0b58e3e3338463f258fdeba1c91