[INFO] cloning repository https://github.com/TheNumerus/AoC2019
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/TheNumerus/AoC2019" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTheNumerus%2FAoC2019", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTheNumerus%2FAoC2019'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3c8e3f8654008a14403d7231d1a2dddc3f49438f
[INFO] checking TheNumerus/AoC2019 against master#36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923 for pr-81863
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTheNumerus%2FAoC2019" "/workspace/builds/worker-9/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/TheNumerus/AoC2019 on toolchain 36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/TheNumerus/AoC2019
[INFO] finished tweaking git repo https://github.com/TheNumerus/AoC2019
[INFO] tweaked toml for git repo https://github.com/TheNumerus/AoC2019 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/TheNumerus/AoC2019 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "rustops/crates-build-env@sha256:ce6408862c0f4858e6cd2b85b2cf085ff7d0d6323904d0a94b71664a228554ab" "/opt/rustwide/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] debd097d34b06b93d05822ef620d2de49c6400888a3d813627a2e078f87853ce
[INFO] running `Command { std: "docker" "start" "-a" "debd097d34b06b93d05822ef620d2de49c6400888a3d813627a2e078f87853ce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "debd097d34b06b93d05822ef620d2de49c6400888a3d813627a2e078f87853ce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "debd097d34b06b93d05822ef620d2de49c6400888a3d813627a2e078f87853ce", kill_on_drop: false }`
[INFO] [stdout] debd097d34b06b93d05822ef620d2de49c6400888a3d813627a2e078f87853ce
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "rustops/crates-build-env@sha256:ce6408862c0f4858e6cd2b85b2cf085ff7d0d6323904d0a94b71664a228554ab" "/opt/rustwide/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 06ea9b8dbdb36ba851145c7585cf2ae47e15de07c1e383e27a5fb49d9b18568b
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "06ea9b8dbdb36ba851145c7585cf2ae47e15de07c1e383e27a5fb49d9b18568b", kill_on_drop: false }`
[INFO] [stderr]     Checking advent_2019 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable `min_layer` is assigned to, but never used
[INFO] [stdout]   --> src/day_8.rs:50:13
[INFO] [stdout]    |
[INFO] [stdout] 50 |         let mut min_layer = 0;
[INFO] [stdout]    |             ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout]    = note: consider using `_min_layer` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `min_layer` is never read
[INFO] [stdout]   --> src/day_8.rs:67:17
[INFO] [stdout]    |
[INFO] [stdout] 67 |                 min_layer = index;
[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: variable `min_layer` is assigned to, but never used
[INFO] [stdout]   --> src/day_8.rs:50:13
[INFO] [stdout]    |
[INFO] [stdout] 50 |         let mut min_layer = 0;
[INFO] [stdout]    |             ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout]    = note: consider using `_min_layer` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `min_layer` is never read
[INFO] [stdout]   --> src/day_8.rs:67:17
[INFO] [stdout]    |
[INFO] [stdout] 67 |                 min_layer = index;
[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: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.26s
[INFO] running `Command { std: "docker" "inspect" "06ea9b8dbdb36ba851145c7585cf2ae47e15de07c1e383e27a5fb49d9b18568b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "06ea9b8dbdb36ba851145c7585cf2ae47e15de07c1e383e27a5fb49d9b18568b", kill_on_drop: false }`
[INFO] [stdout] 06ea9b8dbdb36ba851145c7585cf2ae47e15de07c1e383e27a5fb49d9b18568b