[INFO] cloning repository https://github.com/simpuid/rusty-advent-of-code
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/simpuid/rusty-advent-of-code" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsimpuid%2Frusty-advent-of-code", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsimpuid%2Frusty-advent-of-code'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c12eaf0c0e22c659311490e4c5ddea039355aab0
[INFO] checking simpuid/rusty-advent-of-code against master#1f12b9b0fdbe735968ac002792a720f0ba4faca6 for crater-rollup-uwu
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsimpuid%2Frusty-advent-of-code" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/simpuid/rusty-advent-of-code 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/simpuid/rusty-advent-of-code
[INFO] finished tweaking git repo https://github.com/simpuid/rusty-advent-of-code
[INFO] tweaked toml for git repo https://github.com/simpuid/rusty-advent-of-code written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/simpuid/rusty-advent-of-code 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 7d91bc13c9981971011fc8fb37dafc3a4e5bce251863fc64b802297ed5b1935e
[INFO] running `Command { std: "docker" "start" "-a" "7d91bc13c9981971011fc8fb37dafc3a4e5bce251863fc64b802297ed5b1935e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7d91bc13c9981971011fc8fb37dafc3a4e5bce251863fc64b802297ed5b1935e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7d91bc13c9981971011fc8fb37dafc3a4e5bce251863fc64b802297ed5b1935e", kill_on_drop: false }`
[INFO] [stdout] 7d91bc13c9981971011fc8fb37dafc3a4e5bce251863fc64b802297ed5b1935e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] ffa1dff967c6796d619fc1c9737e5dd563b71c35d04275168b4d0af29197f075
[INFO] running `Command { std: "docker" "start" "-a" "ffa1dff967c6796d619fc1c9737e5dd563b71c35d04275168b4d0af29197f075", kill_on_drop: false }`
[INFO] [stderr]     Checking aoc v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `height` and `visited` are never read
[INFO] [stdout]   --> src/bin/problem18.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | struct Maze {
[INFO] [stdout]    |        ---- fields in this struct
[INFO] [stdout] 16 |     width: usize,
[INFO] [stdout] 17 |     height: usize,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 18 |     data: Vec<Cell>,
[INFO] [stdout] 19 |     visited: Vec<bool>,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Maze` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `height` and `visited` are never read
[INFO] [stdout]   --> src/bin/problem18.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | struct Maze {
[INFO] [stdout]    |        ---- fields in this struct
[INFO] [stdout] 16 |     width: usize,
[INFO] [stdout] 17 |     height: usize,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 18 |     data: Vec<Cell>,
[INFO] [stdout] 19 |     visited: Vec<bool>,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Maze` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[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 1.03s
[INFO] running `Command { std: "docker" "inspect" "ffa1dff967c6796d619fc1c9737e5dd563b71c35d04275168b4d0af29197f075", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ffa1dff967c6796d619fc1c9737e5dd563b71c35d04275168b4d0af29197f075", kill_on_drop: false }`
[INFO] [stdout] ffa1dff967c6796d619fc1c9737e5dd563b71c35d04275168b4d0af29197f075