[INFO] cloning repository https://github.com/boylede/aoc2020
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/boylede/aoc2020" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fboylede%2Faoc2020", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fboylede%2Faoc2020'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 397cc12bb13b7cefb04a151ce87d992b6b7afb6d
[INFO] testing boylede/aoc2020 against beta-2021-01-01 for beta-1.50-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fboylede%2Faoc2020" "/workspace/builds/worker-10/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-10/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/boylede/aoc2020 on toolchain beta-2021-01-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/boylede/aoc2020
[INFO] finished tweaking git repo https://github.com/boylede/aoc2020
[INFO] tweaked toml for git repo https://github.com/boylede/aoc2020 written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate git repo https://github.com/boylede/aoc2020 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded ron v0.6.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d5c250f4924a1efa538d6af1b51f3ff0bf29372a8526cbaedc5c1ca72d8d49b4
[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" "d5c250f4924a1efa538d6af1b51f3ff0bf29372a8526cbaedc5c1ca72d8d49b4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d5c250f4924a1efa538d6af1b51f3ff0bf29372a8526cbaedc5c1ca72d8d49b4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d5c250f4924a1efa538d6af1b51f3ff0bf29372a8526cbaedc5c1ca72d8d49b4", kill_on_drop: false }`
[INFO] [stdout] d5c250f4924a1efa538d6af1b51f3ff0bf29372a8526cbaedc5c1ca72d8d49b4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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=warn" "-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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a260e8973825a695d50d5c72cf0449672ba71a7ba13a9a2bdd2af6dfa1c28018
[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" "a260e8973825a695d50d5c72cf0449672ba71a7ba13a9a2bdd2af6dfa1c28018", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.80
[INFO] [stderr]    Compiling syn v1.0.52
[INFO] [stderr]    Compiling cc v1.0.65
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling encoding_rs v0.8.26
[INFO] [stderr]    Compiling ipnet v2.3.0
[INFO] [stderr]    Compiling termcolor v1.1.2
[INFO] [stderr]    Compiling phf_shared v0.7.24
[INFO] [stderr]    Compiling http v0.2.1
[INFO] [stderr]    Compiling futures-channel v0.3.8
[INFO] [stderr]    Compiling futf v0.1.4
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]    Compiling tracing v0.1.22
[INFO] [stderr]    Compiling want v0.3.0
[INFO] [stderr]    Compiling indexmap v1.6.0
[INFO] [stderr]    Compiling unicase v2.6.0
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling phf v0.7.24
[INFO] [stderr]    Compiling tendril v0.4.1
[INFO] [stderr]    Compiling mime_guess v2.0.3
[INFO] [stderr]    Compiling openssl-sys v0.9.58
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]    Compiling net2 v0.2.36
[INFO] [stderr]    Compiling iovec v0.1.4
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling socket2 v0.3.17
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling time v0.1.44
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling mio v0.6.22
[INFO] [stderr]    Compiling openssl v0.10.30
[INFO] [stderr]    Compiling native-tls v0.2.6
[INFO] [stderr]    Compiling http-body v0.3.1
[INFO] [stderr]    Compiling tokio v0.2.23
[INFO] [stderr]    Compiling phf_generator v0.7.24
[INFO] [stderr]    Compiling string_cache_codegen v0.4.4
[INFO] [stderr]    Compiling phf_codegen v0.7.24
[INFO] [stderr]    Compiling string_cache v0.7.5
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling tokio-util v0.3.1
[INFO] [stderr]    Compiling tokio-tls v0.3.1
[INFO] [stderr]    Compiling serde_derive v1.0.117
[INFO] [stderr]    Compiling pin-project-internal v1.0.2
[INFO] [stderr]    Compiling pin-project-internal v0.4.27
[INFO] [stderr]    Compiling clap_derive v3.0.0-beta.2 (https://github.com/clap-rs/clap/#d36d9117)
[INFO] [stderr]    Compiling html5ever v0.23.0
[INFO] [stderr]    Compiling pin-project v1.0.2
[INFO] [stderr]    Compiling futures-util v0.3.8
[INFO] [stderr]    Compiling pin-project v0.4.27
[INFO] [stderr]    Compiling tracing-futures v0.2.4
[INFO] [stderr]    Compiling clap v3.0.0-beta.2 (https://github.com/clap-rs/clap/#d36d9117)
[INFO] [stderr]    Compiling serde v1.0.117
[INFO] [stderr]    Compiling h2 v0.2.7
[INFO] [stderr]    Compiling serde_json v1.0.59
[INFO] [stderr]    Compiling serde_urlencoded v0.7.0
[INFO] [stderr]    Compiling ron v0.6.2
[INFO] [stderr]    Compiling markup5ever v0.8.1
[INFO] [stderr]    Compiling hyper v0.13.9
[INFO] [stderr]    Compiling select v0.4.3
[INFO] [stderr]    Compiling hyper-tls v0.4.3
[INFO] [stderr]    Compiling reqwest v0.10.9
[INFO] [stderr]    Compiling aoc2020 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]  --> src/day12.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::collections::HashMap;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]  --> src/day13.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::collections::HashMap;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]  --> src/day14.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::collections::HashMap;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]  --> src/day15.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::collections::HashMap;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]  --> src/day16.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::collections::HashMap;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]  --> src/day17.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::collections::HashMap;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]  --> src/day18.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::collections::HashMap;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `BufRead`, `Cursor`, `Read`, `Seek`
[INFO] [stdout]  --> src/day18.rs:3:15
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::io::{BufRead, Cursor, Read, Seek};
[INFO] [stdout]   |               ^^^^^^^  ^^^^^^  ^^^^  ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]  --> src/day19.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::collections::HashMap;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]  --> src/day20.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::collections::HashMap;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]  --> src/day21.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::collections::HashMap;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]  --> src/day22.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::collections::HashMap;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]  --> src/day23.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::collections::HashMap;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]  --> src/day25.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::collections::HashMap;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]    --> src/lib.rs:244:21
[INFO] [stdout]     |
[INFO] [stdout] 244 |                 Err(e) => {
[INFO] [stdout]     |                     ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `y`
[INFO] [stdout]   --> src/day11.rs:87:45
[INFO] [stdout]    |
[INFO] [stdout] 87 |     let max_x = *area.iter().map(|(Coord(x, y), _)| x).max().unwrap();
[INFO] [stdout]    |                                             ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]   --> src/day11.rs:88:42
[INFO] [stdout]    |
[INFO] [stdout] 88 |     let max_y = *area.iter().map(|(Coord(x, y), _)| y).max().unwrap();
[INFO] [stdout]    |                                          ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `y`
[INFO] [stdout]   --> src/day11.rs:89:45
[INFO] [stdout]    |
[INFO] [stdout] 89 |     let min_x = *area.iter().map(|(Coord(x, y), _)| x).min().unwrap();
[INFO] [stdout]    |                                             ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]   --> src/day11.rs:90:42
[INFO] [stdout]    |
[INFO] [stdout] 90 |     let min_y = *area.iter().map(|(Coord(x, y), _)| y).min().unwrap();
[INFO] [stdout]    |                                          ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `seat`
[INFO] [stdout]    --> src/day11.rs:108:29
[INFO] [stdout]     |
[INFO] [stdout] 108 |         if let Square::Seat(seat) = square {
[INFO] [stdout]     |                             ^^^^ help: if this is intentional, prefix it with an underscore: `_seat`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/day13.rs:36:46
[INFO] [stdout]    |
[INFO] [stdout] 36 |     let (max_i, max) = rules.iter().max_by(|(i, b), (ii, bb)| b.cmp(bb)).unwrap();
[INFO] [stdout]    |                                              ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ii`
[INFO] [stdout]   --> src/day13.rs:36:54
[INFO] [stdout]    |
[INFO] [stdout] 36 |     let (max_i, max) = rules.iter().max_by(|(i, b), (ii, bb)| b.cmp(bb)).unwrap();
[INFO] [stdout]    |                                                      ^^ help: if this is intentional, prefix it with an underscore: `_ii`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lines`
[INFO] [stdout]  --> src/day14.rs:4:14
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub fn part1(lines: &Vec<String>) -> PartResult {
[INFO] [stdout]   |              ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lines`
[INFO] [stdout]  --> src/day14.rs:8:14
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub fn part2(lines: &Vec<String>) -> PartResult {
[INFO] [stdout]   |              ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lines`
[INFO] [stdout]  --> src/day15.rs:4:14
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub fn part1(lines: &Vec<String>) -> PartResult {
[INFO] [stdout]   |              ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lines`
[INFO] [stdout]  --> src/day15.rs:8:14
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub fn part2(lines: &Vec<String>) -> PartResult {
[INFO] [stdout]   |              ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lines`
[INFO] [stdout]  --> src/day16.rs:4:14
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub fn part1(lines: &Vec<String>) -> PartResult {
[INFO] [stdout]   |              ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lines`
[INFO] [stdout]  --> src/day16.rs:8:14
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub fn part2(lines: &Vec<String>) -> PartResult {
[INFO] [stdout]   |              ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lines`
[INFO] [stdout]  --> src/day17.rs:4:14
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub fn part1(lines: &Vec<String>) -> PartResult {
[INFO] [stdout]   |              ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lines`
[INFO] [stdout]  --> src/day17.rs:8:14
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub fn part2(lines: &Vec<String>) -> PartResult {
[INFO] [stdout]   |              ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lines`
[INFO] [stdout]    --> src/day18.rs:295:14
[INFO] [stdout]     |
[INFO] [stdout] 295 | pub fn part2(lines: &Vec<String>) -> PartResult {
[INFO] [stdout]     |              ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lines`
[INFO] [stdout]  --> src/day19.rs:4:14
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub fn part1(lines: &Vec<String>) -> PartResult {
[INFO] [stdout]   |              ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lines`
[INFO] [stdout]  --> src/day19.rs:8:14
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub fn part2(lines: &Vec<String>) -> PartResult {
[INFO] [stdout]   |              ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lines`
[INFO] [stdout]  --> src/day20.rs:4:14
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub fn part1(lines: &Vec<String>) -> PartResult {
[INFO] [stdout]   |              ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lines`
[INFO] [stdout]  --> src/day20.rs:8:14
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub fn part2(lines: &Vec<String>) -> PartResult {
[INFO] [stdout]   |              ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lines`
[INFO] [stdout]  --> src/day21.rs:4:14
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub fn part1(lines: &Vec<String>) -> PartResult {
[INFO] [stdout]   |              ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lines`
[INFO] [stdout]  --> src/day21.rs:8:14
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub fn part2(lines: &Vec<String>) -> PartResult {
[INFO] [stdout]   |              ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lines`
[INFO] [stdout]  --> src/day22.rs:4:14
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub fn part1(lines: &Vec<String>) -> PartResult {
[INFO] [stdout]   |              ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lines`
[INFO] [stdout]  --> src/day22.rs:8:14
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub fn part2(lines: &Vec<String>) -> PartResult {
[INFO] [stdout]   |              ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lines`
[INFO] [stdout]  --> src/day23.rs:4:14
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub fn part1(lines: &Vec<String>) -> PartResult {
[INFO] [stdout]   |              ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lines`
[INFO] [stdout]  --> src/day23.rs:8:14
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub fn part2(lines: &Vec<String>) -> PartResult {
[INFO] [stdout]   |              ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `tile`
[INFO] [stdout]   --> src/day24.rs:28:19
[INFO] [stdout]    |
[INFO] [stdout] 28 |         .filter(|(tile, turns)| turns % 2 == 1)
[INFO] [stdout]    |                   ^^^^ help: if this is intentional, prefix it with an underscore: `_tile`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lines`
[INFO] [stdout]   --> src/day24.rs:33:14
[INFO] [stdout]    |
[INFO] [stdout] 33 | pub fn part2(lines: &Vec<String>) -> PartResult {
[INFO] [stdout]    |              ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lines`
[INFO] [stdout]  --> src/day25.rs:4:14
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub fn part1(lines: &Vec<String>) -> PartResult {
[INFO] [stdout]   |              ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lines`
[INFO] [stdout]  --> src/day25.rs:8:14
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub fn part2(lines: &Vec<String>) -> PartResult {
[INFO] [stdout]   |              ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `print_area`
[INFO] [stdout]   --> src/day11.rs:63:4
[INFO] [stdout]    |
[INFO] [stdout] 63 | fn print_area(area: &HashMap<Coord, Square>) {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `range`
[INFO] [stdout]   --> src/day11.rs:86:4
[INFO] [stdout]    |
[INFO] [stdout] 86 | fn range<T>(area: &HashMap<Coord, T>) -> (i32, i32, i32, i32) {
[INFO] [stdout]    |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/day18.rs:24:8
[INFO] [stdout]    |
[INFO] [stdout] 24 |     fn new() -> ParseState {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `consume_operation`
[INFO] [stdout]   --> src/day18.rs:98:4
[INFO] [stdout]    |
[INFO] [stdout] 98 | fn consume_operation(stream: &mut Walk) -> Result<char, ()> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `consume_expression`
[INFO] [stdout]    --> src/day18.rs:126:4
[INFO] [stdout]     |
[INFO] [stdout] 126 | fn consume_expression(stream: &mut Walk) -> Result<Expression, ()> {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `consume_factor`
[INFO] [stdout]    --> src/day18.rs:176:4
[INFO] [stdout]     |
[INFO] [stdout] 176 | fn consume_factor(stream: &mut Walk) -> Result<Factor, ()> {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Walk`
[INFO] [stdout]    --> src/day18.rs:299:8
[INFO] [stdout]     |
[INFO] [stdout] 299 | struct Walk<'a> {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `next`
[INFO] [stdout]    --> src/day18.rs:305:8
[INFO] [stdout]     |
[INFO] [stdout] 305 |     fn next(&mut self) -> Option<char> {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `backward`
[INFO] [stdout]    --> src/day18.rs:316:8
[INFO] [stdout]     |
[INFO] [stdout] 316 |     fn backward(&mut self) {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `wrap`
[INFO] [stdout]    --> src/day18.rs:319:8
[INFO] [stdout]     |
[INFO] [stdout] 319 |     fn wrap(inner: &'a str) -> Self {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Coord`
[INFO] [stdout]   --> src/day24.rs:61:8
[INFO] [stdout]    |
[INFO] [stdout] 61 | struct Coord(i32, i32, i32);
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 56 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3m 29s
[INFO] running `Command { std: "docker" "inspect" "a260e8973825a695d50d5c72cf0449672ba71a7ba13a9a2bdd2af6dfa1c28018", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a260e8973825a695d50d5c72cf0449672ba71a7ba13a9a2bdd2af6dfa1c28018", kill_on_drop: false }`
[INFO] [stdout] a260e8973825a695d50d5c72cf0449672ba71a7ba13a9a2bdd2af6dfa1c28018
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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=warn" "-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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1556ac0425f94b9c9eda984be18c90988b38838ec75fcad0da17924364403005
[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" "1556ac0425f94b9c9eda984be18c90988b38838ec75fcad0da17924364403005", kill_on_drop: false }`
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]  --> src/day12.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::collections::HashMap;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]  --> src/day13.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::collections::HashMap;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]  --> src/day14.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::collections::HashMap;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]  --> src/day15.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::collections::HashMap;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]  --> src/day16.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::collections::HashMap;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]  --> src/day17.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::collections::HashMap;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]  --> src/day18.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::collections::HashMap;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `BufRead`, `Cursor`, `Read`, `Seek`
[INFO] [stdout]  --> src/day18.rs:3:15
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::io::{BufRead, Cursor, Read, Seek};
[INFO] [stdout]   |               ^^^^^^^  ^^^^^^  ^^^^  ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]  --> src/day19.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::collections::HashMap;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]  --> src/day20.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::collections::HashMap;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]  --> src/day21.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::collections::HashMap;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]  --> src/day22.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::collections::HashMap;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]  --> src/day23.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::collections::HashMap;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]  --> src/day25.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::collections::HashMap;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]    --> src/lib.rs:244:21
[INFO] [stdout]     |
[INFO] [stdout] 244 |                 Err(e) => {
[INFO] [stdout]     |                     ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `y`
[INFO] [stdout]   --> src/day11.rs:87:45
[INFO] [stdout]    |
[INFO] [stdout] 87 |     let max_x = *area.iter().map(|(Coord(x, y), _)| x).max().unwrap();
[INFO] [stdout]    |                                             ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]   --> src/day11.rs:88:42
[INFO] [stdout]    |
[INFO] [stdout] 88 |     let max_y = *area.iter().map(|(Coord(x, y), _)| y).max().unwrap();
[INFO] [stdout]    |                                          ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `y`
[INFO] [stdout]   --> src/day11.rs:89:45
[INFO] [stdout]    |
[INFO] [stdout] 89 |     let min_x = *area.iter().map(|(Coord(x, y), _)| x).min().unwrap();
[INFO] [stdout]    |                                             ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]   --> src/day11.rs:90:42
[INFO] [stdout]    |
[INFO] [stdout] 90 |     let min_y = *area.iter().map(|(Coord(x, y), _)| y).min().unwrap();
[INFO] [stdout]    |                                          ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `seat`
[INFO] [stdout]    --> src/day11.rs:108:29
[INFO] [stdout]     |
[INFO] [stdout] 108 |         if let Square::Seat(seat) = square {
[INFO] [stdout]     |                             ^^^^ help: if this is intentional, prefix it with an underscore: `_seat`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/day13.rs:36:46
[INFO] [stdout]    |
[INFO] [stdout] 36 |     let (max_i, max) = rules.iter().max_by(|(i, b), (ii, bb)| b.cmp(bb)).unwrap();
[INFO] [stdout]    |                                              ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ii`
[INFO] [stdout]   --> src/day13.rs:36:54
[INFO] [stdout]    |
[INFO] [stdout] 36 |     let (max_i, max) = rules.iter().max_by(|(i, b), (ii, bb)| b.cmp(bb)).unwrap();
[INFO] [stdout]    |                                                      ^^ help: if this is intentional, prefix it with an underscore: `_ii`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lines`
[INFO] [stdout]  --> src/day14.rs:4:14
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub fn part1(lines: &Vec<String>) -> PartResult {
[INFO] [stdout]   |              ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lines`
[INFO] [stdout]  --> src/day14.rs:8:14
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub fn part2(lines: &Vec<String>) -> PartResult {
[INFO] [stdout]   |              ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lines`
[INFO] [stdout]  --> src/day15.rs:4:14
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub fn part1(lines: &Vec<String>) -> PartResult {
[INFO] [stdout]   |              ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lines`
[INFO] [stdout]  --> src/day15.rs:8:14
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub fn part2(lines: &Vec<String>) -> PartResult {
[INFO] [stdout]   |              ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lines`
[INFO] [stdout]  --> src/day16.rs:4:14
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub fn part1(lines: &Vec<String>) -> PartResult {
[INFO] [stdout]   |              ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lines`
[INFO] [stdout]  --> src/day16.rs:8:14
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub fn part2(lines: &Vec<String>) -> PartResult {
[INFO] [stdout]   |              ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lines`
[INFO] [stdout]  --> src/day17.rs:4:14
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub fn part1(lines: &Vec<String>) -> PartResult {
[INFO] [stdout]   |              ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lines`
[INFO] [stdout]  --> src/day17.rs:8:14
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub fn part2(lines: &Vec<String>) -> PartResult {
[INFO] [stdout]   |              ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lines`
[INFO] [stdout]    --> src/day18.rs:295:14
[INFO] [stdout]     |
[INFO] [stdout] 295 | pub fn part2(lines: &Vec<String>) -> PartResult {
[INFO] [stdout]     |              ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lines`
[INFO] [stdout]  --> src/day19.rs:4:14
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub fn part1(lines: &Vec<String>) -> PartResult {
[INFO] [stdout]   |              ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lines`
[INFO] [stdout]  --> src/day19.rs:8:14
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub fn part2(lines: &Vec<String>) -> PartResult {
[INFO] [stdout]   |              ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lines`
[INFO] [stdout]  --> src/day20.rs:4:14
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub fn part1(lines: &Vec<String>) -> PartResult {
[INFO] [stdout]   |              ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lines`
[INFO] [stdout]  --> src/day20.rs:8:14
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub fn part2(lines: &Vec<String>) -> PartResult {
[INFO] [stdout]   |              ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling aoc2020 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `lines`
[INFO] [stdout]  --> src/day21.rs:4:14
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub fn part1(lines: &Vec<String>) -> PartResult {
[INFO] [stdout]   |              ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lines`
[INFO] [stdout]  --> src/day21.rs:8:14
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub fn part2(lines: &Vec<String>) -> PartResult {
[INFO] [stdout]   |              ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lines`
[INFO] [stdout]  --> src/day22.rs:4:14
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub fn part1(lines: &Vec<String>) -> PartResult {
[INFO] [stdout]   |              ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lines`
[INFO] [stdout]  --> src/day22.rs:8:14
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub fn part2(lines: &Vec<String>) -> PartResult {
[INFO] [stdout]   |              ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lines`
[INFO] [stdout]  --> src/day23.rs:4:14
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub fn part1(lines: &Vec<String>) -> PartResult {
[INFO] [stdout]   |              ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lines`
[INFO] [stdout]  --> src/day23.rs:8:14
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub fn part2(lines: &Vec<String>) -> PartResult {
[INFO] [stdout]   |              ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `tile`
[INFO] [stdout]   --> src/day24.rs:28:19
[INFO] [stdout]    |
[INFO] [stdout] 28 |         .filter(|(tile, turns)| turns % 2 == 1)
[INFO] [stdout]    |                   ^^^^ help: if this is intentional, prefix it with an underscore: `_tile`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lines`
[INFO] [stdout]   --> src/day24.rs:33:14
[INFO] [stdout]    |
[INFO] [stdout] 33 | pub fn part2(lines: &Vec<String>) -> PartResult {
[INFO] [stdout]    |              ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lines`
[INFO] [stdout]  --> src/day25.rs:4:14
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub fn part1(lines: &Vec<String>) -> PartResult {
[INFO] [stdout]   |              ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lines`
[INFO] [stdout]  --> src/day25.rs:8:14
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub fn part2(lines: &Vec<String>) -> PartResult {
[INFO] [stdout]   |              ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `print_area`
[INFO] [stdout]   --> src/day11.rs:63:4
[INFO] [stdout]    |
[INFO] [stdout] 63 | fn print_area(area: &HashMap<Coord, Square>) {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `range`
[INFO] [stdout]   --> src/day11.rs:86:4
[INFO] [stdout]    |
[INFO] [stdout] 86 | fn range<T>(area: &HashMap<Coord, T>) -> (i32, i32, i32, i32) {
[INFO] [stdout]    |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/day18.rs:24:8
[INFO] [stdout]    |
[INFO] [stdout] 24 |     fn new() -> ParseState {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `consume_operation`
[INFO] [stdout]   --> src/day18.rs:98:4
[INFO] [stdout]    |
[INFO] [stdout] 98 | fn consume_operation(stream: &mut Walk) -> Result<char, ()> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `consume_expression`
[INFO] [stdout]    --> src/day18.rs:126:4
[INFO] [stdout]     |
[INFO] [stdout] 126 | fn consume_expression(stream: &mut Walk) -> Result<Expression, ()> {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `consume_factor`
[INFO] [stdout]    --> src/day18.rs:176:4
[INFO] [stdout]     |
[INFO] [stdout] 176 | fn consume_factor(stream: &mut Walk) -> Result<Factor, ()> {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Walk`
[INFO] [stdout]    --> src/day18.rs:299:8
[INFO] [stdout]     |
[INFO] [stdout] 299 | struct Walk<'a> {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `next`
[INFO] [stdout]    --> src/day18.rs:305:8
[INFO] [stdout]     |
[INFO] [stdout] 305 |     fn next(&mut self) -> Option<char> {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `backward`
[INFO] [stdout]    --> src/day18.rs:316:8
[INFO] [stdout]     |
[INFO] [stdout] 316 |     fn backward(&mut self) {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `wrap`
[INFO] [stdout]    --> src/day18.rs:319:8
[INFO] [stdout]     |
[INFO] [stdout] 319 |     fn wrap(inner: &'a str) -> Self {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Coord`
[INFO] [stdout]   --> src/day24.rs:61:8
[INFO] [stdout]    |
[INFO] [stdout] 61 | struct Coord(i32, i32, i32);
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 56 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]  --> src/day12.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::collections::HashMap;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]  --> src/day13.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::collections::HashMap;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]  --> src/day14.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::collections::HashMap;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]  --> src/day15.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::collections::HashMap;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]  --> src/day16.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::collections::HashMap;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]  --> src/day17.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::collections::HashMap;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]  --> src/day18.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::collections::HashMap;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `BufRead`, `Cursor`, `Read`, `Seek`
[INFO] [stdout]  --> src/day18.rs:3:15
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::io::{BufRead, Cursor, Read, Seek};
[INFO] [stdout]   |               ^^^^^^^  ^^^^^^  ^^^^  ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]  --> src/day19.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::collections::HashMap;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]  --> src/day20.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::collections::HashMap;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]  --> src/day21.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::collections::HashMap;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]  --> src/day22.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::collections::HashMap;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]  --> src/day23.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::collections::HashMap;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]  --> src/day25.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::collections::HashMap;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]    --> src/lib.rs:244:21
[INFO] [stdout]     |
[INFO] [stdout] 244 |                 Err(e) => {
[INFO] [stdout]     |                     ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `y`
[INFO] [stdout]   --> src/day11.rs:87:45
[INFO] [stdout]    |
[INFO] [stdout] 87 |     let max_x = *area.iter().map(|(Coord(x, y), _)| x).max().unwrap();
[INFO] [stdout]    |                                             ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]   --> src/day11.rs:88:42
[INFO] [stdout]    |
[INFO] [stdout] 88 |     let max_y = *area.iter().map(|(Coord(x, y), _)| y).max().unwrap();
[INFO] [stdout]    |                                          ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `y`
[INFO] [stdout]   --> src/day11.rs:89:45
[INFO] [stdout]    |
[INFO] [stdout] 89 |     let min_x = *area.iter().map(|(Coord(x, y), _)| x).min().unwrap();
[INFO] [stdout]    |                                             ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]   --> src/day11.rs:90:42
[INFO] [stdout]    |
[INFO] [stdout] 90 |     let min_y = *area.iter().map(|(Coord(x, y), _)| y).min().unwrap();
[INFO] [stdout]    |                                          ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `seat`
[INFO] [stdout]    --> src/day11.rs:108:29
[INFO] [stdout]     |
[INFO] [stdout] 108 |         if let Square::Seat(seat) = square {
[INFO] [stdout]     |                             ^^^^ help: if this is intentional, prefix it with an underscore: `_seat`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/day13.rs:36:46
[INFO] [stdout]    |
[INFO] [stdout] 36 |     let (max_i, max) = rules.iter().max_by(|(i, b), (ii, bb)| b.cmp(bb)).unwrap();
[INFO] [stdout]    |                                              ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ii`
[INFO] [stdout]   --> src/day13.rs:36:54
[INFO] [stdout]    |
[INFO] [stdout] 36 |     let (max_i, max) = rules.iter().max_by(|(i, b), (ii, bb)| b.cmp(bb)).unwrap();
[INFO] [stdout]    |                                                      ^^ help: if this is intentional, prefix it with an underscore: `_ii`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lines`
[INFO] [stdout]  --> src/day14.rs:4:14
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub fn part1(lines: &Vec<String>) -> PartResult {
[INFO] [stdout]   |              ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lines`
[INFO] [stdout]  --> src/day14.rs:8:14
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub fn part2(lines: &Vec<String>) -> PartResult {
[INFO] [stdout]   |              ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lines`
[INFO] [stdout]  --> src/day15.rs:4:14
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub fn part1(lines: &Vec<String>) -> PartResult {
[INFO] [stdout]   |              ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lines`
[INFO] [stdout]  --> src/day15.rs:8:14
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub fn part2(lines: &Vec<String>) -> PartResult {
[INFO] [stdout]   |              ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lines`
[INFO] [stdout]  --> src/day16.rs:4:14
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub fn part1(lines: &Vec<String>) -> PartResult {
[INFO] [stdout]   |              ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lines`
[INFO] [stdout]  --> src/day16.rs:8:14
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub fn part2(lines: &Vec<String>) -> PartResult {
[INFO] [stdout]   |              ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lines`
[INFO] [stdout]  --> src/day17.rs:4:14
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub fn part1(lines: &Vec<String>) -> PartResult {
[INFO] [stdout]   |              ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lines`
[INFO] [stdout]  --> src/day17.rs:8:14
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub fn part2(lines: &Vec<String>) -> PartResult {
[INFO] [stdout]   |              ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lines`
[INFO] [stdout]    --> src/day18.rs:295:14
[INFO] [stdout]     |
[INFO] [stdout] 295 | pub fn part2(lines: &Vec<String>) -> PartResult {
[INFO] [stdout]     |              ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lines`
[INFO] [stdout]  --> src/day19.rs:4:14
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub fn part1(lines: &Vec<String>) -> PartResult {
[INFO] [stdout]   |              ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lines`
[INFO] [stdout]  --> src/day19.rs:8:14
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub fn part2(lines: &Vec<String>) -> PartResult {
[INFO] [stdout]   |              ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lines`
[INFO] [stdout]  --> src/day20.rs:4:14
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub fn part1(lines: &Vec<String>) -> PartResult {
[INFO] [stdout]   |              ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lines`
[INFO] [stdout]  --> src/day20.rs:8:14
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub fn part2(lines: &Vec<String>) -> PartResult {
[INFO] [stdout]   |              ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lines`
[INFO] [stdout]  --> src/day21.rs:4:14
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub fn part1(lines: &Vec<String>) -> PartResult {
[INFO] [stdout]   |              ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lines`
[INFO] [stdout]  --> src/day21.rs:8:14
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub fn part2(lines: &Vec<String>) -> PartResult {
[INFO] [stdout]   |              ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lines`
[INFO] [stdout]  --> src/day22.rs:4:14
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub fn part1(lines: &Vec<String>) -> PartResult {
[INFO] [stdout]   |              ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lines`
[INFO] [stdout]  --> src/day22.rs:8:14
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub fn part2(lines: &Vec<String>) -> PartResult {
[INFO] [stdout]   |              ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lines`
[INFO] [stdout]  --> src/day23.rs:4:14
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub fn part1(lines: &Vec<String>) -> PartResult {
[INFO] [stdout]   |              ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lines`
[INFO] [stdout]  --> src/day23.rs:8:14
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub fn part2(lines: &Vec<String>) -> PartResult {
[INFO] [stdout]   |              ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `tile`
[INFO] [stdout]   --> src/day24.rs:28:19
[INFO] [stdout]    |
[INFO] [stdout] 28 |         .filter(|(tile, turns)| turns % 2 == 1)
[INFO] [stdout]    |                   ^^^^ help: if this is intentional, prefix it with an underscore: `_tile`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lines`
[INFO] [stdout]   --> src/day24.rs:33:14
[INFO] [stdout]    |
[INFO] [stdout] 33 | pub fn part2(lines: &Vec<String>) -> PartResult {
[INFO] [stdout]    |              ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lines`
[INFO] [stdout]  --> src/day25.rs:4:14
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub fn part1(lines: &Vec<String>) -> PartResult {
[INFO] [stdout]   |              ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lines`
[INFO] [stdout]  --> src/day25.rs:8:14
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub fn part2(lines: &Vec<String>) -> PartResult {
[INFO] [stdout]   |              ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `print_area`
[INFO] [stdout]   --> src/day11.rs:63:4
[INFO] [stdout]    |
[INFO] [stdout] 63 | fn print_area(area: &HashMap<Coord, Square>) {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `range`
[INFO] [stdout]   --> src/day11.rs:86:4
[INFO] [stdout]    |
[INFO] [stdout] 86 | fn range<T>(area: &HashMap<Coord, T>) -> (i32, i32, i32, i32) {
[INFO] [stdout]    |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/day18.rs:24:8
[INFO] [stdout]    |
[INFO] [stdout] 24 |     fn new() -> ParseState {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `consume_operation`
[INFO] [stdout]   --> src/day18.rs:98:4
[INFO] [stdout]    |
[INFO] [stdout] 98 | fn consume_operation(stream: &mut Walk) -> Result<char, ()> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `consume_expression`
[INFO] [stdout]    --> src/day18.rs:126:4
[INFO] [stdout]     |
[INFO] [stdout] 126 | fn consume_expression(stream: &mut Walk) -> Result<Expression, ()> {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `consume_factor`
[INFO] [stdout]    --> src/day18.rs:176:4
[INFO] [stdout]     |
[INFO] [stdout] 176 | fn consume_factor(stream: &mut Walk) -> Result<Factor, ()> {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Walk`
[INFO] [stdout]    --> src/day18.rs:299:8
[INFO] [stdout]     |
[INFO] [stdout] 299 | struct Walk<'a> {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `next`
[INFO] [stdout]    --> src/day18.rs:305:8
[INFO] [stdout]     |
[INFO] [stdout] 305 |     fn next(&mut self) -> Option<char> {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `backward`
[INFO] [stdout]    --> src/day18.rs:316:8
[INFO] [stdout]     |
[INFO] [stdout] 316 |     fn backward(&mut self) {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `wrap`
[INFO] [stdout]    --> src/day18.rs:319:8
[INFO] [stdout]     |
[INFO] [stdout] 319 |     fn wrap(inner: &'a str) -> Self {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Coord`
[INFO] [stdout]   --> src/day24.rs:61:8
[INFO] [stdout]    |
[INFO] [stdout] 61 | struct Coord(i32, i32, i32);
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 56 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 9.74s
[INFO] running `Command { std: "docker" "inspect" "1556ac0425f94b9c9eda984be18c90988b38838ec75fcad0da17924364403005", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1556ac0425f94b9c9eda984be18c90988b38838ec75fcad0da17924364403005", kill_on_drop: false }`
[INFO] [stdout] 1556ac0425f94b9c9eda984be18c90988b38838ec75fcad0da17924364403005
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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=warn" "-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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 8d3d00ea199d51f7bf8b8290c4e132b6cceed33cb4861d7e5199878dd757f998
[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" "8d3d00ea199d51f7bf8b8290c4e132b6cceed33cb4861d7e5199878dd757f998", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `std::collections::HashMap`
[INFO] [stderr]  --> src/day12.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::collections::HashMap;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::collections::HashMap`
[INFO] [stderr]  --> src/day13.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::collections::HashMap;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::collections::HashMap`
[INFO] [stderr]  --> src/day14.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::collections::HashMap;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::collections::HashMap`
[INFO] [stderr]  --> src/day15.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::collections::HashMap;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::collections::HashMap`
[INFO] [stderr]  --> src/day16.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::collections::HashMap;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::collections::HashMap`
[INFO] [stderr]  --> src/day17.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::collections::HashMap;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::collections::HashMap`
[INFO] [stderr]  --> src/day18.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::collections::HashMap;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `BufRead`, `Cursor`, `Read`, `Seek`
[INFO] [stderr]  --> src/day18.rs:3:15
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::io::{BufRead, Cursor, Read, Seek};
[INFO] [stderr]   |               ^^^^^^^  ^^^^^^  ^^^^  ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::collections::HashMap`
[INFO] [stderr]  --> src/day19.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::collections::HashMap;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::collections::HashMap`
[INFO] [stderr]  --> src/day20.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::collections::HashMap;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::collections::HashMap`
[INFO] [stderr]  --> src/day21.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::collections::HashMap;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::collections::HashMap`
[INFO] [stderr]  --> src/day22.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::collections::HashMap;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::collections::HashMap`
[INFO] [stderr]  --> src/day23.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::collections::HashMap;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::collections::HashMap`
[INFO] [stderr]  --> src/day25.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::collections::HashMap;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `e`
[INFO] [stderr]    --> src/lib.rs:244:21
[INFO] [stderr]     |
[INFO] [stderr] 244 |                 Err(e) => {
[INFO] [stderr]     |                     ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `y`
[INFO] [stderr]   --> src/day11.rs:87:45
[INFO] [stderr]    |
[INFO] [stderr] 87 |     let max_x = *area.iter().map(|(Coord(x, y), _)| x).max().unwrap();
[INFO] [stderr]    |                                             ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `x`
[INFO] [stderr]   --> src/day11.rs:88:42
[INFO] [stderr]    |
[INFO] [stderr] 88 |     let max_y = *area.iter().map(|(Coord(x, y), _)| y).max().unwrap();
[INFO] [stderr]    |                                          ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `y`
[INFO] [stderr]   --> src/day11.rs:89:45
[INFO] [stderr]    |
[INFO] [stderr] 89 |     let min_x = *area.iter().map(|(Coord(x, y), _)| x).min().unwrap();
[INFO] [stderr]    |                                             ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `x`
[INFO] [stderr]   --> src/day11.rs:90:42
[INFO] [stderr]    |
[INFO] [stderr] 90 |     let min_y = *area.iter().map(|(Coord(x, y), _)| y).min().unwrap();
[INFO] [stderr]    |                                          ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `seat`
[INFO] [stderr]    --> src/day11.rs:108:29
[INFO] [stderr]     |
[INFO] [stderr] 108 |         if let Square::Seat(seat) = square {
[INFO] [stderr]     |                             ^^^^ help: if this is intentional, prefix it with an underscore: `_seat`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]   --> src/day13.rs:36:46
[INFO] [stderr]    |
[INFO] [stderr] 36 |     let (max_i, max) = rules.iter().max_by(|(i, b), (ii, bb)| b.cmp(bb)).unwrap();
[INFO] [stderr]    |                                              ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `ii`
[INFO] [stderr]   --> src/day13.rs:36:54
[INFO] [stderr]    |
[INFO] [stderr] 36 |     let (max_i, max) = rules.iter().max_by(|(i, b), (ii, bb)| b.cmp(bb)).unwrap();
[INFO] [stderr]    |                                                      ^^ help: if this is intentional, prefix it with an underscore: `_ii`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `lines`
[INFO] [stderr]  --> src/day14.rs:4:14
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub fn part1(lines: &Vec<String>) -> PartResult {
[INFO] [stderr]   |              ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `lines`
[INFO] [stderr]  --> src/day14.rs:8:14
[INFO] [stderr]   |
[INFO] [stderr] 8 | pub fn part2(lines: &Vec<String>) -> PartResult {
[INFO] [stderr]   |              ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `lines`
[INFO] [stderr]  --> src/day15.rs:4:14
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub fn part1(lines: &Vec<String>) -> PartResult {
[INFO] [stderr]   |              ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `lines`
[INFO] [stderr]  --> src/day15.rs:8:14
[INFO] [stderr]   |
[INFO] [stderr] 8 | pub fn part2(lines: &Vec<String>) -> PartResult {
[INFO] [stderr]   |              ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `lines`
[INFO] [stderr]  --> src/day16.rs:4:14
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub fn part1(lines: &Vec<String>) -> PartResult {
[INFO] [stderr]   |              ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `lines`
[INFO] [stderr]  --> src/day16.rs:8:14
[INFO] [stderr]   |
[INFO] [stderr] 8 | pub fn part2(lines: &Vec<String>) -> PartResult {
[INFO] [stderr]   |              ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `lines`
[INFO] [stderr]  --> src/day17.rs:4:14
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub fn part1(lines: &Vec<String>) -> PartResult {
[INFO] [stderr]   |              ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `lines`
[INFO] [stderr]  --> src/day17.rs:8:14
[INFO] [stderr]   |
[INFO] [stderr] 8 | pub fn part2(lines: &Vec<String>) -> PartResult {
[INFO] [stderr]   |              ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `lines`
[INFO] [stderr]    --> src/day18.rs:295:14
[INFO] [stderr]     |
[INFO] [stderr] 295 | pub fn part2(lines: &Vec<String>) -> PartResult {
[INFO] [stderr]     |              ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `lines`
[INFO] [stderr]  --> src/day19.rs:4:14
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub fn part1(lines: &Vec<String>) -> PartResult {
[INFO] [stderr]   |              ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `lines`
[INFO] [stderr]  --> src/day19.rs:8:14
[INFO] [stderr]   |
[INFO] [stderr] 8 | pub fn part2(lines: &Vec<String>) -> PartResult {
[INFO] [stderr]   |              ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `lines`
[INFO] [stderr]  --> src/day20.rs:4:14
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub fn part1(lines: &Vec<String>) -> PartResult {
[INFO] [stderr]   |              ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `lines`
[INFO] [stderr]  --> src/day20.rs:8:14
[INFO] [stderr]   |
[INFO] [stderr] 8 | pub fn part2(lines: &Vec<String>) -> PartResult {
[INFO] [stderr]   |              ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `lines`
[INFO] [stderr]  --> src/day21.rs:4:14
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub fn part1(lines: &Vec<String>) -> PartResult {
[INFO] [stderr]   |              ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `lines`
[INFO] [stderr]  --> src/day21.rs:8:14
[INFO] [stderr]   |
[INFO] [stderr] 8 | pub fn part2(lines: &Vec<String>) -> PartResult {
[INFO] [stderr]   |              ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `lines`
[INFO] [stderr]  --> src/day22.rs:4:14
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub fn part1(lines: &Vec<String>) -> PartResult {
[INFO] [stderr]   |              ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `lines`
[INFO] [stderr]  --> src/day22.rs:8:14
[INFO] [stderr]   |
[INFO] [stderr] 8 | pub fn part2(lines: &Vec<String>) -> PartResult {
[INFO] [stderr]   |              ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `lines`
[INFO] [stderr]  --> src/day23.rs:4:14
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub fn part1(lines: &Vec<String>) -> PartResult {
[INFO] [stderr]   |              ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `lines`
[INFO] [stderr]  --> src/day23.rs:8:14
[INFO] [stderr]   |
[INFO] [stderr] 8 | pub fn part2(lines: &Vec<String>) -> PartResult {
[INFO] [stderr]   |              ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `tile`
[INFO] [stderr]   --> src/day24.rs:28:19
[INFO] [stderr]    |
[INFO] [stderr] 28 |         .filter(|(tile, turns)| turns % 2 == 1)
[INFO] [stderr]    |                   ^^^^ help: if this is intentional, prefix it with an underscore: `_tile`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `lines`
[INFO] [stderr]   --> src/day24.rs:33:14
[INFO] [stderr]    |
[INFO] [stderr] 33 | pub fn part2(lines: &Vec<String>) -> PartResult {
[INFO] [stderr]    |              ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `lines`
[INFO] [stderr]  --> src/day25.rs:4:14
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub fn part1(lines: &Vec<String>) -> PartResult {
[INFO] [stderr]   |              ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `lines`
[INFO] [stderr]  --> src/day25.rs:8:14
[INFO] [stderr]   |
[INFO] [stderr] 8 | pub fn part2(lines: &Vec<String>) -> PartResult {
[INFO] [stderr]   |              ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `print_area`
[INFO] [stderr]   --> src/day11.rs:63:4
[INFO] [stderr]    |
[INFO] [stderr] 63 | fn print_area(area: &HashMap<Coord, Square>) {
[INFO] [stderr]    |    ^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `range`
[INFO] [stderr]   --> src/day11.rs:86:4
[INFO] [stderr]    |
[INFO] [stderr] 86 | fn range<T>(area: &HashMap<Coord, T>) -> (i32, i32, i32, i32) {
[INFO] [stderr]    |    ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new`
[INFO] [stderr]   --> src/day18.rs:24:8
[INFO] [stderr]    |
[INFO] [stderr] 24 |     fn new() -> ParseState {
[INFO] [stderr]    |        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `consume_operation`
[INFO] [stderr]   --> src/day18.rs:98:4
[INFO] [stderr]    |
[INFO] [stderr] 98 | fn consume_operation(stream: &mut Walk) -> Result<char, ()> {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `consume_expression`
[INFO] [stderr]    --> src/day18.rs:126:4
[INFO] [stderr]     |
[INFO] [stderr] 126 | fn consume_expression(stream: &mut Walk) -> Result<Expression, ()> {
[INFO] [stderr]     |    ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `consume_factor`
[INFO] [stderr]    --> src/day18.rs:176:4
[INFO] [stderr]     |
[INFO] [stderr] 176 | fn consume_factor(stream: &mut Walk) -> Result<Factor, ()> {
[INFO] [stderr]     |    ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Walk`
[INFO] [stderr]    --> src/day18.rs:299:8
[INFO] [stderr]     |
[INFO] [stderr] 299 | struct Walk<'a> {
[INFO] [stderr]     |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `next`
[INFO] [stderr]    --> src/day18.rs:305:8
[INFO] [stderr]     |
[INFO] [stderr] 305 |     fn next(&mut self) -> Option<char> {
[INFO] [stderr]     |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `backward`
[INFO] [stderr]    --> src/day18.rs:316:8
[INFO] [stderr]     |
[INFO] [stderr] 316 |     fn backward(&mut self) {
[INFO] [stderr]     |        ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `wrap`
[INFO] [stderr]    --> src/day18.rs:319:8
[INFO] [stderr]     |
[INFO] [stderr] 319 |     fn wrap(inner: &'a str) -> Self {
[INFO] [stderr]     |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Coord`
[INFO] [stderr]   --> src/day24.rs:61:8
[INFO] [stderr]    |
[INFO] [stderr] 61 | struct Coord(i32, i32, i32);
[INFO] [stderr]    |        ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 56 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::collections::HashMap`
[INFO] [stderr]  --> src/day12.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::collections::HashMap;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::collections::HashMap`
[INFO] [stderr]  --> src/day13.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::collections::HashMap;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::collections::HashMap`
[INFO] [stderr]  --> src/day14.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::collections::HashMap;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::collections::HashMap`
[INFO] [stderr]  --> src/day15.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::collections::HashMap;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::collections::HashMap`
[INFO] [stderr]  --> src/day16.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::collections::HashMap;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::collections::HashMap`
[INFO] [stderr]  --> src/day17.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::collections::HashMap;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::collections::HashMap`
[INFO] [stderr]  --> src/day18.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::collections::HashMap;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `BufRead`, `Cursor`, `Read`, `Seek`
[INFO] [stderr]  --> src/day18.rs:3:15
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::io::{BufRead, Cursor, Read, Seek};
[INFO] [stderr]   |               ^^^^^^^  ^^^^^^  ^^^^  ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::collections::HashMap`
[INFO] [stderr]  --> src/day19.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::collections::HashMap;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::collections::HashMap`
[INFO] [stderr]  --> src/day20.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::collections::HashMap;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::collections::HashMap`
[INFO] [stderr]  --> src/day21.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::collections::HashMap;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::collections::HashMap`
[INFO] [stderr]  --> src/day22.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::collections::HashMap;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::collections::HashMap`
[INFO] [stderr]  --> src/day23.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::collections::HashMap;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::collections::HashMap`
[INFO] [stderr]  --> src/day25.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::collections::HashMap;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `e`
[INFO] [stderr]    --> src/lib.rs:244:21
[INFO] [stderr]     |
[INFO] [stderr] 244 |                 Err(e) => {
[INFO] [stderr]     |                     ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `y`
[INFO] [stderr]   --> src/day11.rs:87:45
[INFO] [stderr]    |
[INFO] [stderr] 87 |     let max_x = *area.iter().map(|(Coord(x, y), _)| x).max().unwrap();
[INFO] [stderr]    |                                             ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `x`
[INFO] [stderr]   --> src/day11.rs:88:42
[INFO] [stderr]    |
[INFO] [stderr] 88 |     let max_y = *area.iter().map(|(Coord(x, y), _)| y).max().unwrap();
[INFO] [stderr]    |                                          ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `y`
[INFO] [stderr]   --> src/day11.rs:89:45
[INFO] [stderr]    |
[INFO] [stderr] 89 |     let min_x = *area.iter().map(|(Coord(x, y), _)| x).min().unwrap();
[INFO] [stderr]    |                                             ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `x`
[INFO] [stderr]   --> src/day11.rs:90:42
[INFO] [stderr]    |
[INFO] [stderr] 90 |     let min_y = *area.iter().map(|(Coord(x, y), _)| y).min().unwrap();
[INFO] [stderr]    |                                          ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `seat`
[INFO] [stderr]    --> src/day11.rs:108:29
[INFO] [stderr]     |
[INFO] [stderr] 108 |         if let Square::Seat(seat) = square {
[INFO] [stderr]     |                             ^^^^ help: if this is intentional, prefix it with an underscore: `_seat`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]   --> src/day13.rs:36:46
[INFO] [stderr]    |
[INFO] [stderr] 36 |     let (max_i, max) = rules.iter().max_by(|(i, b), (ii, bb)| b.cmp(bb)).unwrap();
[INFO] [stderr]    |                                              ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `ii`
[INFO] [stderr]   --> src/day13.rs:36:54
[INFO] [stderr]    |
[INFO] [stderr] 36 |     let (max_i, max) = rules.iter().max_by(|(i, b), (ii, bb)| b.cmp(bb)).unwrap();
[INFO] [stderr]    |                                                      ^^ help: if this is intentional, prefix it with an underscore: `_ii`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `lines`
[INFO] [stderr]  --> src/day14.rs:4:14
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub fn part1(lines: &Vec<String>) -> PartResult {
[INFO] [stderr]   |              ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `lines`
[INFO] [stderr]  --> src/day14.rs:8:14
[INFO] [stderr]   |
[INFO] [stderr] 8 | pub fn part2(lines: &Vec<String>) -> PartResult {
[INFO] [stderr]   |              ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `lines`
[INFO] [stderr]  --> src/day15.rs:4:14
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub fn part1(lines: &Vec<String>) -> PartResult {
[INFO] [stderr]   |              ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `lines`
[INFO] [stderr]  --> src/day15.rs:8:14
[INFO] [stderr]   |
[INFO] [stderr] 8 | pub fn part2(lines: &Vec<String>) -> PartResult {
[INFO] [stderr]   |              ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `lines`
[INFO] [stderr]  --> src/day16.rs:4:14
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub fn part1(lines: &Vec<String>) -> PartResult {
[INFO] [stderr]   |              ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `lines`
[INFO] [stderr]  --> src/day16.rs:8:14
[INFO] [stderr]   |
[INFO] [stderr] 8 | pub fn part2(lines: &Vec<String>) -> PartResult {
[INFO] [stderr]   |              ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `lines`
[INFO] [stderr]  --> src/day17.rs:4:14
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub fn part1(lines: &Vec<String>) -> PartResult {
[INFO] [stderr]   |              ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `lines`
[INFO] [stderr]  --> src/day17.rs:8:14
[INFO] [stderr]   |
[INFO] [stderr] 8 | pub fn part2(lines: &Vec<String>) -> PartResult {
[INFO] [stderr]   |              ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `lines`
[INFO] [stderr]    --> src/day18.rs:295:14
[INFO] [stderr]     |
[INFO] [stderr] 295 | pub fn part2(lines: &Vec<String>) -> PartResult {
[INFO] [stderr]     |              ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `lines`
[INFO] [stderr]  --> src/day19.rs:4:14
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub fn part1(lines: &Vec<String>) -> PartResult {
[INFO] [stderr]   |              ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `lines`
[INFO] [stderr]  --> src/day19.rs:8:14
[INFO] [stderr]   |
[INFO] [stderr] 8 | pub fn part2(lines: &Vec<String>) -> PartResult {
[INFO] [stderr]   |              ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `lines`
[INFO] [stderr]  --> src/day20.rs:4:14
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub fn part1(lines: &Vec<String>) -> PartResult {
[INFO] [stderr]   |              ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `lines`
[INFO] [stderr]  --> src/day20.rs:8:14
[INFO] [stderr]   |
[INFO] [stderr] 8 | pub fn part2(lines: &Vec<String>) -> PartResult {
[INFO] [stderr]   |              ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `lines`
[INFO] [stderr]  --> src/day21.rs:4:14
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub fn part1(lines: &Vec<String>) -> PartResult {
[INFO] [stderr]   |              ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `lines`
[INFO] [stderr]  --> src/day21.rs:8:14
[INFO] [stderr]   |
[INFO] [stderr] 8 | pub fn part2(lines: &Vec<String>) -> PartResult {
[INFO] [stderr]   |              ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `lines`
[INFO] [stderr]  --> src/day22.rs:4:14
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub fn part1(lines: &Vec<String>) -> PartResult {
[INFO] [stderr]   |              ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `lines`
[INFO] [stderr]  --> src/day22.rs:8:14
[INFO] [stderr]   |
[INFO] [stderr] 8 | pub fn part2(lines: &Vec<String>) -> PartResult {
[INFO] [stderr]   |              ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `lines`
[INFO] [stderr]  --> src/day23.rs:4:14
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub fn part1(lines: &Vec<String>) -> PartResult {
[INFO] [stderr]   |              ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `lines`
[INFO] [stderr]  --> src/day23.rs:8:14
[INFO] [stderr]   |
[INFO] [stderr] 8 | pub fn part2(lines: &Vec<String>) -> PartResult {
[INFO] [stderr]   |              ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `tile`
[INFO] [stderr]   --> src/day24.rs:28:19
[INFO] [stderr]    |
[INFO] [stderr] 28 |         .filter(|(tile, turns)| turns % 2 == 1)
[INFO] [stderr]    |                   ^^^^ help: if this is intentional, prefix it with an underscore: `_tile`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `lines`
[INFO] [stderr]   --> src/day24.rs:33:14
[INFO] [stderr]    |
[INFO] [stderr] 33 | pub fn part2(lines: &Vec<String>) -> PartResult {
[INFO] [stderr]    |              ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `lines`
[INFO] [stderr]  --> src/day25.rs:4:14
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub fn part1(lines: &Vec<String>) -> PartResult {
[INFO] [stderr]   |              ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `lines`
[INFO] [stderr]  --> src/day25.rs:8:14
[INFO] [stderr]   |
[INFO] [stderr] 8 | pub fn part2(lines: &Vec<String>) -> PartResult {
[INFO] [stderr]   |              ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `print_area`
[INFO] [stderr]   --> src/day11.rs:63:4
[INFO] [stderr]    |
[INFO] [stderr] 63 | fn print_area(area: &HashMap<Coord, Square>) {
[INFO] [stderr]    |    ^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `range`
[INFO] [stderr]   --> src/day11.rs:86:4
[INFO] [stderr]    |
[INFO] [stderr] 86 | fn range<T>(area: &HashMap<Coord, T>) -> (i32, i32, i32, i32) {
[INFO] [stderr]    |    ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new`
[INFO] [stderr]   --> src/day18.rs:24:8
[INFO] [stderr]    |
[INFO] [stderr] 24 |     fn new() -> ParseState {
[INFO] [stderr]    |        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `consume_operation`
[INFO] [stderr]   --> src/day18.rs:98:4
[INFO] [stderr]    |
[INFO] [stderr] 98 | fn consume_operation(stream: &mut Walk) -> Result<char, ()> {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `consume_expression`
[INFO] [stderr]    --> src/day18.rs:126:4
[INFO] [stderr]     |
[INFO] [stderr] 126 | fn consume_expression(stream: &mut Walk) -> Result<Expression, ()> {
[INFO] [stderr]     |    ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `consume_factor`
[INFO] [stderr]    --> src/day18.rs:176:4
[INFO] [stderr]     |
[INFO] [stderr] 176 | fn consume_factor(stream: &mut Walk) -> Result<Factor, ()> {
[INFO] [stderr]     |    ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Walk`
[INFO] [stderr]    --> src/day18.rs:299:8
[INFO] [stderr]     |
[INFO] [stderr] 299 | struct Walk<'a> {
[INFO] [stderr]     |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `next`
[INFO] [stderr]    --> src/day18.rs:305:8
[INFO] [stderr]     |
[INFO] [stderr] 305 |     fn next(&mut self) -> Option<char> {
[INFO] [stderr]     |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `backward`
[INFO] [stderr]    --> src/day18.rs:316:8
[INFO] [stderr]     |
[INFO] [stderr] 316 |     fn backward(&mut self) {
[INFO] [stderr]     |        ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `wrap`
[INFO] [stderr]    --> src/day18.rs:319:8
[INFO] [stderr]     |
[INFO] [stderr] 319 |     fn wrap(inner: &'a str) -> Self {
[INFO] [stderr]     |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Coord`
[INFO] [stderr]   --> src/day24.rs:61:8
[INFO] [stderr]    |
[INFO] [stderr] 61 | struct Coord(i32, i32, i32);
[INFO] [stderr]    |        ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 56 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.15s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/aoc2020-87d99baefc8fd5c4
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/aoc2020-9fa257ed5596bfed
[INFO] [stdout] running 0 tests
[INFO] [stderr]    Doc-tests aoc2020
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "8d3d00ea199d51f7bf8b8290c4e132b6cceed33cb4861d7e5199878dd757f998", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8d3d00ea199d51f7bf8b8290c4e132b6cceed33cb4861d7e5199878dd757f998", kill_on_drop: false }`
[INFO] [stdout] 8d3d00ea199d51f7bf8b8290c4e132b6cceed33cb4861d7e5199878dd757f998