[INFO] cloning repository https://github.com/runec/advent-of-code-2020
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/runec/advent-of-code-2020" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frunec%2Fadvent-of-code-2020", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frunec%2Fadvent-of-code-2020'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 72ecb03c7a87ce59505fb62dcd9573cf11d4a5fb
[INFO] checking runec/advent-of-code-2020 against try#53184dc07942a1944769a9e15fc2cb08c9f62e9d for pr-99197
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frunec%2Fadvent-of-code-2020" "/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/runec/advent-of-code-2020 on toolchain 53184dc07942a1944769a9e15fc2cb08c9f62e9d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+53184dc07942a1944769a9e15fc2cb08c9f62e9d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/runec/advent-of-code-2020
[INFO] finished tweaking git repo https://github.com/runec/advent-of-code-2020
[INFO] tweaked toml for git repo https://github.com/runec/advent-of-code-2020 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/runec/advent-of-code-2020 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+53184dc07942a1944769a9e15fc2cb08c9f62e9d" "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/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" "+53184dc07942a1944769a9e15fc2cb08c9f62e9d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9f2c8ae2ec14b2cab8213641b4bab787c17f83b7cc0e324ba197488528ae3ea0
[INFO] running `Command { std: "docker" "start" "-a" "9f2c8ae2ec14b2cab8213641b4bab787c17f83b7cc0e324ba197488528ae3ea0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9f2c8ae2ec14b2cab8213641b4bab787c17f83b7cc0e324ba197488528ae3ea0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9f2c8ae2ec14b2cab8213641b4bab787c17f83b7cc0e324ba197488528ae3ea0", kill_on_drop: false }`
[INFO] [stdout] 9f2c8ae2ec14b2cab8213641b4bab787c17f83b7cc0e324ba197488528ae3ea0
[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" "+53184dc07942a1944769a9e15fc2cb08c9f62e9d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 19e5e4b526131e971ee8c83a045a4ce50bdc6563f00bfc4e1c2364ff33ddbb0f
[INFO] running `Command { std: "docker" "start" "-a" "19e5e4b526131e971ee8c83a045a4ce50bdc6563f00bfc4e1c2364ff33ddbb0f", kill_on_drop: false }`
[INFO] [stderr]     Checking advent-of-code-2020 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `door_loop`
[INFO] [stdout]   --> solutions/day25.rs:20:7
[INFO] [stdout]    |
[INFO] [stdout] 20 |   let door_loop = find_loop_size(door_key);
[INFO] [stdout]    |       ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_door_loop`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `door_loop`
[INFO] [stdout]   --> solutions/day25.rs:20:7
[INFO] [stdout]    |
[INFO] [stdout] 20 |   let door_loop = find_loop_size(door_key);
[INFO] [stdout]    |       ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_door_loop`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` 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 2.97s
[INFO] running `Command { std: "docker" "inspect" "19e5e4b526131e971ee8c83a045a4ce50bdc6563f00bfc4e1c2364ff33ddbb0f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "19e5e4b526131e971ee8c83a045a4ce50bdc6563f00bfc4e1c2364ff33ddbb0f", kill_on_drop: false }`
[INFO] [stdout] 19e5e4b526131e971ee8c83a045a4ce50bdc6563f00bfc4e1c2364ff33ddbb0f