[INFO] cloning repository https://github.com/JochemKlingeler/AdventOfCode2020
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/JochemKlingeler/AdventOfCode2020" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJochemKlingeler%2FAdventOfCode2020", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJochemKlingeler%2FAdventOfCode2020'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2314e6055483317ac8bfb26f1857cfeffa5808dd
[INFO] checking JochemKlingeler/AdventOfCode2020 against try#ddfd70ee3c3748e597b32f416b0d15a4f6e37685 for pr-87050
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJochemKlingeler%2FAdventOfCode2020" "/workspace/builds/worker-12/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/JochemKlingeler/AdventOfCode2020 on toolchain ddfd70ee3c3748e597b32f416b0d15a4f6e37685
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/JochemKlingeler/AdventOfCode2020
[INFO] finished tweaking git repo https://github.com/JochemKlingeler/AdventOfCode2020
[INFO] tweaked toml for git repo https://github.com/JochemKlingeler/AdventOfCode2020 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate git repo https://github.com/JochemKlingeler/AdventOfCode2020 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 09e8d2165e11244691dbdf12d2e576af7fd6c46c86e870955727f2a6e1d7ca5e
[INFO] running `Command { std: "docker" "start" "-a" "09e8d2165e11244691dbdf12d2e576af7fd6c46c86e870955727f2a6e1d7ca5e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "09e8d2165e11244691dbdf12d2e576af7fd6c46c86e870955727f2a6e1d7ca5e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "09e8d2165e11244691dbdf12d2e576af7fd6c46c86e870955727f2a6e1d7ca5e", kill_on_drop: false }`
[INFO] [stdout] 09e8d2165e11244691dbdf12d2e576af7fd6c46c86e870955727f2a6e1d7ca5e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 07b4e22a2b1fce4ef08a63a825b5555f186e2223bc7aafe28e81432d44bf62a8
[INFO] running `Command { std: "docker" "start" "-a" "07b4e22a2b1fce4ef08a63a825b5555f186e2223bc7aafe28e81432d44bf62a8", kill_on_drop: false }`
[INFO] [stderr]     Checking advent_of_code_2020 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `cid`
[INFO] [stdout]   --> src/solutions/day_04.rs:98:5
[INFO] [stdout]    |
[INFO] [stdout] 98 |     pub cid: Option<String>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `cid`
[INFO] [stdout]   --> src/solutions/day_04.rs:98:5
[INFO] [stdout]    |
[INFO] [stdout] 98 |     pub cid: Option<String>,
[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] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.44s
[INFO] running `Command { std: "docker" "inspect" "07b4e22a2b1fce4ef08a63a825b5555f186e2223bc7aafe28e81432d44bf62a8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "07b4e22a2b1fce4ef08a63a825b5555f186e2223bc7aafe28e81432d44bf62a8", kill_on_drop: false }`
[INFO] [stdout] 07b4e22a2b1fce4ef08a63a825b5555f186e2223bc7aafe28e81432d44bf62a8