[INFO] cloning repository https://github.com/Hyumin/AdventOfCode2021
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Hyumin/AdventOfCode2021" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FHyumin%2FAdventOfCode2021", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FHyumin%2FAdventOfCode2021'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 68b7edc929a5f672c819bba9752b524864115373
[INFO] checking Hyumin/AdventOfCode2021 against master#42bd138126b0a9d38d65bc9973e72de3c5b6c37f for pr-99217
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FHyumin%2FAdventOfCode2021" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Hyumin/AdventOfCode2021 on toolchain 42bd138126b0a9d38d65bc9973e72de3c5b6c37f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+42bd138126b0a9d38d65bc9973e72de3c5b6c37f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Hyumin/AdventOfCode2021
[INFO] finished tweaking git repo https://github.com/Hyumin/AdventOfCode2021
[INFO] tweaked toml for git repo https://github.com/Hyumin/AdventOfCode2021 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/Hyumin/AdventOfCode2021 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+42bd138126b0a9d38d65bc9973e72de3c5b6c37f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:ecb52c4cf6672b83cc996368a05b4a059042425f2b6ba9cd23a06cdead5d8d70" "/opt/rustwide/cargo-home/bin/cargo" "+42bd138126b0a9d38d65bc9973e72de3c5b6c37f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fd85ba2a507bf50c26fc8d78bc2746ffd8042eaf3836ca204b3543a7fe8c94cf
[INFO] running `Command { std: "docker" "start" "-a" "fd85ba2a507bf50c26fc8d78bc2746ffd8042eaf3836ca204b3543a7fe8c94cf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fd85ba2a507bf50c26fc8d78bc2746ffd8042eaf3836ca204b3543a7fe8c94cf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fd85ba2a507bf50c26fc8d78bc2746ffd8042eaf3836ca204b3543a7fe8c94cf", kill_on_drop: false }`
[INFO] [stdout] fd85ba2a507bf50c26fc8d78bc2746ffd8042eaf3836ca204b3543a7fe8c94cf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:ecb52c4cf6672b83cc996368a05b4a059042425f2b6ba9cd23a06cdead5d8d70" "/opt/rustwide/cargo-home/bin/cargo" "+42bd138126b0a9d38d65bc9973e72de3c5b6c37f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c19effe994ac3d354aa3d9723876c12c3851f27bdd01f36896271b7283f91727
[INFO] running `Command { std: "docker" "start" "-a" "c19effe994ac3d354aa3d9723876c12c3851f27bdd01f36896271b7283f91727", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking regex-syntax v0.6.21
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling num-bigint v0.3.1
[INFO] [stderr]    Compiling num-rational v0.3.2
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]     Checking aho-corasick v0.7.15
[INFO] [stderr]     Checking num-complex v0.3.1
[INFO] [stderr]     Checking regex v1.4.2
[INFO] [stderr]     Checking num v0.3.1
[INFO] [stderr]     Checking hielke_advent_of_code_2021_rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::vec`
[INFO] [stdout]  --> src/utility.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::vec;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `io::Result`
[INFO] [stdout]  --> src/utility.rs:4:15
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::{fs, io::Result};
[INFO] [stdout]   |               ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `result`
[INFO] [stdout]  --> src/day_2.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | let result = 0;
[INFO] [stdout]   |     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_result`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `result` is never read
[INFO] [stdout]   --> src/day_2.rs:67:13
[INFO] [stdout]    |
[INFO] [stdout] 67 |     let mut result = 0;
[INFO] [stdout]    |             ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::vec`
[INFO] [stdout]  --> src/utility.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::vec;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `io::Result`
[INFO] [stdout]  --> src/utility.rs:4:15
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::{fs, io::Result};
[INFO] [stdout]   |               ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `result`
[INFO] [stdout]  --> src/day_2.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | let result = 0;
[INFO] [stdout]   |     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_result`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `result` is never read
[INFO] [stdout]   --> src/day_2.rs:67:13
[INFO] [stdout]    |
[INFO] [stdout] 67 |     let mut result = 0;
[INFO] [stdout]    |             ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.50s
[INFO] running `Command { std: "docker" "inspect" "c19effe994ac3d354aa3d9723876c12c3851f27bdd01f36896271b7283f91727", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c19effe994ac3d354aa3d9723876c12c3851f27bdd01f36896271b7283f91727", kill_on_drop: false }`
[INFO] [stdout] c19effe994ac3d354aa3d9723876c12c3851f27bdd01f36896271b7283f91727