[INFO] cloning repository https://github.com/yujin97/aoc-2022
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/yujin97/aoc-2022" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyujin97%2Faoc-2022", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyujin97%2Faoc-2022'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] dc1682ed67cfaf854da29488b6691dfaf923719e
[INFO] checking yujin97/aoc-2022 against master#1f12b9b0fdbe735968ac002792a720f0ba4faca6 for crater-rollup-uwu
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyujin97%2Faoc-2022" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/yujin97/aoc-2022 on toolchain 1f12b9b0fdbe735968ac002792a720f0ba4faca6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/yujin97/aoc-2022
[INFO] finished tweaking git repo https://github.com/yujin97/aoc-2022
[INFO] tweaked toml for git repo https://github.com/yujin97/aoc-2022 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/yujin97/aoc-2022 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" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6ea8e8ffee9468a9548f8adef3f7011b10b0fbe8020c29989be9605e72eb0da9
[INFO] running `Command { std: "docker" "start" "-a" "6ea8e8ffee9468a9548f8adef3f7011b10b0fbe8020c29989be9605e72eb0da9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6ea8e8ffee9468a9548f8adef3f7011b10b0fbe8020c29989be9605e72eb0da9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6ea8e8ffee9468a9548f8adef3f7011b10b0fbe8020c29989be9605e72eb0da9", kill_on_drop: false }`
[INFO] [stdout] 6ea8e8ffee9468a9548f8adef3f7011b10b0fbe8020c29989be9605e72eb0da9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d085186b46fb7ef43bc1da1cba03e333a50b1737c7ab29aff32756576e0d4681
[INFO] running `Command { std: "docker" "start" "-a" "d085186b46fb7ef43bc1da1cba03e333a50b1737c7ab29aff32756576e0d4681", kill_on_drop: false }`
[INFO] [stderr]     Checking aoc-2022 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `origin`
[INFO] [stdout]    --> src/bin/d7_first_take.rs:162:9
[INFO] [stdout]     |
[INFO] [stdout] 162 |     let origin = Rc::clone(&head);
[INFO] [stdout]     |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_origin`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `parent` and `size` are never read
[INFO] [stdout]   --> src/bin/d7_first_take.rs:17:9
[INFO] [stdout]    |
[INFO] [stdout] 16 |     File {
[INFO] [stdout]    |     ---- fields in this variant
[INFO] [stdout] 17 |         parent: Rc<RefCell<FileTree>>,
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout] 18 |         full_path: String,
[INFO] [stdout] 19 |         size: usize,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `FileTree` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `get_child` is never used
[INFO] [stdout]   --> src/bin/d7a.rs:29:8
[INFO] [stdout]    |
[INFO] [stdout] 12 | impl Directory {
[INFO] [stdout]    | -------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 29 |     fn get_child(&mut self, dir_name: &str) -> Rc<RefCell<Directory>> {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `origin`
[INFO] [stdout]    --> src/bin/d7_first_take.rs:162:9
[INFO] [stdout]     |
[INFO] [stdout] 162 |     let origin = Rc::clone(&head);
[INFO] [stdout]     |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_origin`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `parent` and `size` are never read
[INFO] [stdout]   --> src/bin/d7_first_take.rs:17:9
[INFO] [stdout]    |
[INFO] [stdout] 16 |     File {
[INFO] [stdout]    |     ---- fields in this variant
[INFO] [stdout] 17 |         parent: Rc<RefCell<FileTree>>,
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout] 18 |         full_path: String,
[INFO] [stdout] 19 |         size: usize,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `FileTree` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `get_child` is never used
[INFO] [stdout]   --> src/bin/d7b.rs:29:8
[INFO] [stdout]    |
[INFO] [stdout] 12 | impl Directory {
[INFO] [stdout]    | -------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 29 |     fn get_child(&mut self, dir_name: &str) -> Rc<RefCell<Directory>> {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.15s
[INFO] running `Command { std: "docker" "inspect" "d085186b46fb7ef43bc1da1cba03e333a50b1737c7ab29aff32756576e0d4681", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d085186b46fb7ef43bc1da1cba03e333a50b1737c7ab29aff32756576e0d4681", kill_on_drop: false }`
[INFO] [stdout] d085186b46fb7ef43bc1da1cba03e333a50b1737c7ab29aff32756576e0d4681