[INFO] cloning repository https://github.com/paolostyle/advent-of-code-2021
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/paolostyle/advent-of-code-2021" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpaolostyle%2Fadvent-of-code-2021", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpaolostyle%2Fadvent-of-code-2021'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1293dfeaded699e38454c559912fe295c14a9c66
[INFO] checking paolostyle/advent-of-code-2021 against master#1f12b9b0fdbe735968ac002792a720f0ba4faca6 for crater-rollup-uwu
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpaolostyle%2Fadvent-of-code-2021" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/paolostyle/advent-of-code-2021 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/paolostyle/advent-of-code-2021
[INFO] finished tweaking git repo https://github.com/paolostyle/advent-of-code-2021
[INFO] tweaked toml for git repo https://github.com/paolostyle/advent-of-code-2021 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/paolostyle/advent-of-code-2021 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]  Downloading crates ...
[INFO] [stderr]   Downloaded cached v0.26.2
[INFO] [stderr]   Downloaded cached_proc_macro v0.7.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 624617f257e867f2387b220dad5cce7d8255697567265fb8a2adf493de6612ee
[INFO] running `Command { std: "docker" "start" "-a" "624617f257e867f2387b220dad5cce7d8255697567265fb8a2adf493de6612ee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "624617f257e867f2387b220dad5cce7d8255697567265fb8a2adf493de6612ee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "624617f257e867f2387b220dad5cce7d8255697567265fb8a2adf493de6612ee", kill_on_drop: false }`
[INFO] [stdout] 624617f257e867f2387b220dad5cce7d8255697567265fb8a2adf493de6612ee
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 58771d93d22a3bf7c4e8bb4a3d21c8f3e904f855e0b9c2e0a3c6790bcbc037d1
[INFO] running `Command { std: "docker" "start" "-a" "58771d93d22a3bf7c4e8bb4a3d21c8f3e904f855e0b9c2e0a3c6790bcbc037d1", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.34
[INFO] [stderr]    Compiling syn v1.0.82
[INFO] [stderr]    Compiling futures-core v0.3.19
[INFO] [stderr]    Compiling futures-task v0.3.19
[INFO] [stderr]    Compiling futures-channel v0.3.19
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]     Checking futures-sink v0.3.19
[INFO] [stderr]    Compiling futures-util v0.3.19
[INFO] [stderr]    Compiling ident_case v1.0.1
[INFO] [stderr]    Compiling strsim v0.10.0
[INFO] [stderr]     Checking futures-io v0.3.19
[INFO] [stderr]     Checking event-listener v2.5.1
[INFO] [stderr]    Compiling async-trait v0.1.52
[INFO] [stderr]     Checking async-mutex v1.4.0
[INFO] [stderr]    Compiling cached_proc_macro_types v0.1.0
[INFO] [stderr]     Checking once_cell v1.9.0
[INFO] [stderr]     Checking fixedbitset v0.1.9
[INFO] [stderr]     Checking async-rwlock v1.3.0
[INFO] [stderr]     Checking ordermap v0.3.5
[INFO] [stderr]     Checking regex-syntax v0.6.25
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]     Checking itertools v0.10.3
[INFO] [stderr]    Compiling quote v1.0.10
[INFO] [stderr]     Checking petgraph v0.4.13
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]    Compiling darling_core v0.13.1
[INFO] [stderr]    Compiling futures-macro v0.3.19
[INFO] [stderr]    Compiling darling_macro v0.13.1
[INFO] [stderr]    Compiling darling v0.13.1
[INFO] [stderr]    Compiling cached_proc_macro v0.7.1
[INFO] [stderr]     Checking futures-executor v0.3.19
[INFO] [stderr]     Checking futures v0.3.19
[INFO] [stderr]     Checking cached v0.26.2
[INFO] [stderr]     Checking aoc2021 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `vec_id`
[INFO] [stdout]   --> src/bin/day23.rs:28:9
[INFO] [stdout]    |
[INFO] [stdout] 28 |     let vec_id = room_id - 1;
[INFO] [stdout]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_vec_id`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `action`
[INFO] [stdout]   --> src/bin/day23.rs:27:33
[INFO] [stdout]    |
[INFO] [stdout] 27 |   fn leave_room(room_id: usize, action: Move) {
[INFO] [stdout]    |                                 ^^^^^^ help: if this is intentional, prefix it with an underscore: `_action`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `hall`
[INFO] [stdout]   --> src/bin/day23.rs:47:7
[INFO] [stdout]    |
[INFO] [stdout] 47 |   let hall = ['.'; HALL_SIZE];
[INFO] [stdout]    |       ^^^^ help: if this is intentional, prefix it with an underscore: `_hall`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `input`
[INFO] [stdout]   --> src/bin/day23.rs:46:11
[INFO] [stdout]    |
[INFO] [stdout] 46 | fn part_1(input: &Rooms) -> u32 {
[INFO] [stdout]    |           ^^^^^ help: if this is intentional, prefix it with an underscore: `_input`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `input`
[INFO] [stdout]   --> src/bin/day23.rs:53:11
[INFO] [stdout]    |
[INFO] [stdout] 53 | fn part_2(input: &Rooms) -> u32 {
[INFO] [stdout]    |           ^^^^^ help: if this is intentional, prefix it with an underscore: `_input`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Move` is never used
[INFO] [stdout]  --> src/bin/day23.rs:7:6
[INFO] [stdout]   |
[INFO] [stdout] 7 | enum Move {
[INFO] [stdout]   |      ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Burrow` is never constructed
[INFO] [stdout]   --> src/bin/day23.rs:12:8
[INFO] [stdout]    |
[INFO] [stdout] 12 | struct Burrow {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated functions `new` and `leave_room` are never used
[INFO] [stdout]   --> src/bin/day23.rs:19:6
[INFO] [stdout]    |
[INFO] [stdout] 18 | impl Burrow {
[INFO] [stdout]    | ----------- associated functions in this implementation
[INFO] [stdout] 19 |   fn new(rooms: Rooms) -> Burrow {
[INFO] [stdout]    |      ^^^
[INFO] [stdout] ...
[INFO] [stdout] 27 |   fn leave_room(room_id: usize, action: Move) {
[INFO] [stdout]    |      ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `vec_id`
[INFO] [stdout]   --> src/bin/day23.rs:28:9
[INFO] [stdout]    |
[INFO] [stdout] 28 |     let vec_id = room_id - 1;
[INFO] [stdout]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_vec_id`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `action`
[INFO] [stdout]   --> src/bin/day23.rs:27:33
[INFO] [stdout]    |
[INFO] [stdout] 27 |   fn leave_room(room_id: usize, action: Move) {
[INFO] [stdout]    |                                 ^^^^^^ help: if this is intentional, prefix it with an underscore: `_action`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `hall`
[INFO] [stdout]   --> src/bin/day23.rs:47:7
[INFO] [stdout]    |
[INFO] [stdout] 47 |   let hall = ['.'; HALL_SIZE];
[INFO] [stdout]    |       ^^^^ help: if this is intentional, prefix it with an underscore: `_hall`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `input`
[INFO] [stdout]   --> src/bin/day23.rs:46:11
[INFO] [stdout]    |
[INFO] [stdout] 46 | fn part_1(input: &Rooms) -> u32 {
[INFO] [stdout]    |           ^^^^^ help: if this is intentional, prefix it with an underscore: `_input`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `input`
[INFO] [stdout]   --> src/bin/day23.rs:53:11
[INFO] [stdout]    |
[INFO] [stdout] 53 | fn part_2(input: &Rooms) -> u32 {
[INFO] [stdout]    |           ^^^^^ help: if this is intentional, prefix it with an underscore: `_input`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Move` is never used
[INFO] [stdout]  --> src/bin/day23.rs:7:6
[INFO] [stdout]   |
[INFO] [stdout] 7 | enum Move {
[INFO] [stdout]   |      ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Burrow` is never constructed
[INFO] [stdout]   --> src/bin/day23.rs:12:8
[INFO] [stdout]    |
[INFO] [stdout] 12 | struct Burrow {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated functions `new` and `leave_room` are never used
[INFO] [stdout]   --> src/bin/day23.rs:19:6
[INFO] [stdout]    |
[INFO] [stdout] 18 | impl Burrow {
[INFO] [stdout]    | ----------- associated functions in this implementation
[INFO] [stdout] 19 |   fn new(rooms: Rooms) -> Burrow {
[INFO] [stdout]    |      ^^^
[INFO] [stdout] ...
[INFO] [stdout] 27 |   fn leave_room(room_id: usize, action: Move) {
[INFO] [stdout]    |      ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.44s
[INFO] running `Command { std: "docker" "inspect" "58771d93d22a3bf7c4e8bb4a3d21c8f3e904f855e0b9c2e0a3c6790bcbc037d1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "58771d93d22a3bf7c4e8bb4a3d21c8f3e904f855e0b9c2e0a3c6790bcbc037d1", kill_on_drop: false }`
[INFO] [stdout] 58771d93d22a3bf7c4e8bb4a3d21c8f3e904f855e0b9c2e0a3c6790bcbc037d1