[INFO] cloning repository https://github.com/ziriuz84/adventofcode-rust-2023
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ziriuz84/adventofcode-rust-2023" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fziriuz84%2Fadventofcode-rust-2023", kill_on_drop: false }`
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[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6f7e3576e54ae0432bfb2a1661a821aa5d76bdae
[INFO] checking ziriuz84/adventofcode-rust-2023 against try#e90f1ff63e694965281f833819a486da29772bdf for pr-146167
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fziriuz84%2Fadventofcode-rust-2023" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] removed /workspace/builds/worker-4-tc2/source/.cargo/config.toml
[INFO] started tweaking git repo https://github.com/ziriuz84/adventofcode-rust-2023
[INFO] finished tweaking git repo https://github.com/ziriuz84/adventofcode-rust-2023
[INFO] tweaked toml for git repo https://github.com/ziriuz84/adventofcode-rust-2023 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/ziriuz84/adventofcode-rust-2023 on toolchain e90f1ff63e694965281f833819a486da29772bdf
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+e90f1ff63e694965281f833819a486da29772bdf" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/ziriuz84/adventofcode-rust-2023 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+e90f1ff63e694965281f833819a486da29772bdf" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded pico-args v0.5.0
[INFO] [stderr]   Downloaded strength_reduce v0.2.4
[INFO] [stderr]   Downloaded grid v0.13.0
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[INFO] [stderr]   Downloaded itertools v0.12.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+e90f1ff63e694965281f833819a486da29772bdf" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c8445fee26e6be3718f5672a7d75b97f4ec6780c452dc22f2e23d6e593b15d63
[INFO] running `Command { std: "docker" "start" "-a" "c8445fee26e6be3718f5672a7d75b97f4ec6780c452dc22f2e23d6e593b15d63", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c8445fee26e6be3718f5672a7d75b97f4ec6780c452dc22f2e23d6e593b15d63", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c8445fee26e6be3718f5672a7d75b97f4ec6780c452dc22f2e23d6e593b15d63", kill_on_drop: false }`
[INFO] [stdout] c8445fee26e6be3718f5672a7d75b97f4ec6780c452dc22f2e23d6e593b15d63
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+e90f1ff63e694965281f833819a486da29772bdf" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8407406fda41728aedac5f50876025090ee7c7c6da0572f3838c852e23647a03
[INFO] running `Command { std: "docker" "start" "-a" "8407406fda41728aedac5f50876025090ee7c7c6da0572f3838c852e23647a03", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.17
[INFO] [stderr]     Checking memchr v2.7.1
[INFO] [stderr]     Checking regex-syntax v0.8.2
[INFO] [stderr]     Checking either v1.9.0
[INFO] [stderr]     Checking strength_reduce v0.2.4
[INFO] [stderr]     Checking grid v0.13.0
[INFO] [stderr]     Checking pico-args v0.5.0
[INFO] [stderr]     Checking itertools v0.12.0
[INFO] [stderr]     Checking aho-corasick v1.1.2
[INFO] [stderr]     Checking num-integer v0.1.45
[INFO] [stderr]     Checking transpose v0.2.2
[INFO] [stderr]     Checking regex-automata v0.4.3
[INFO] [stderr]     Checking regex v1.10.2
[INFO] [stderr]     Checking advent_of_code v0.9.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/bin/04.rs:46:13
[INFO] [stdout]    |
[INFO] [stdout] 46 |         for i in 1..counter {
[INFO] [stdout]    |             ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `id` is never read
[INFO] [stdout]  --> src/bin/04.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct Card {
[INFO] [stdout]   |            ---- field in this struct
[INFO] [stdout] 5 |     id: u32,
[INFO] [stdout]   |     ^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Card` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> src/bin/04.rs:94:9
[INFO] [stdout]    |
[INFO] [stdout] 94 |         &total_cards.push(temp_card);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 94 |         let _ = &total_cards.push(temp_card);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::task::Wake`
[INFO] [stdout]  --> src/bin/06.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::task::Wake;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `input`
[INFO] [stdout]    --> src/bin/03.rs:125:17
[INFO] [stdout]     |
[INFO] [stdout] 125 | pub fn part_two(input: &str) -> Option<u32> {
[INFO] [stdout]     |                 ^^^^^ help: if this is intentional, prefix it with an underscore: `_input`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]  --> src/bin/01.rs:5:9
[INFO] [stdout]   |
[INFO] [stdout] 5 |     let mut sum = 0;
[INFO] [stdout]   |         ----^^^
[INFO] [stdout]   |         |
[INFO] [stdout]   |         help: remove this `mut`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `digits`
[INFO] [stdout]   --> src/bin/01.rs:42:13
[INFO] [stdout]    |
[INFO] [stdout] 42 |         let digits = ["0", "1", "2", "3", "4", "5", "6", "7", "8", "9"];
[INFO] [stdout]    |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_digits`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `input`
[INFO] [stdout]  --> src/bin/12.rs:3:17
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn part_one(input: &str) -> Option<u32> {
[INFO] [stdout]   |                 ^^^^^ help: if this is intentional, prefix it with an underscore: `_input`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `new_temp` is never read
[INFO] [stdout]  --> src/bin/09.rs:9:13
[INFO] [stdout]   |
[INFO] [stdout] 9 |     let mut new_temp: Vec<i32> = Vec::new();
[INFO] [stdout]   |             ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = help: maybe it is overwritten before being read?
[INFO] [stdout]   = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `input`
[INFO] [stdout]  --> src/bin/12.rs:7:17
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub fn part_two(input: &str) -> Option<u32> {
[INFO] [stdout]   |                 ^^^^^ help: if this is intentional, prefix it with an underscore: `_input`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::borrow::BorrowMut`
[INFO] [stdout]  --> src/bin/02.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::borrow::BorrowMut;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/bin/11.rs:29:17
[INFO] [stdout]    |
[INFO] [stdout] 29 |             for i in 0..n_rows {
[INFO] [stdout]    |                 ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `new_temp` is never read
[INFO] [stdout]  --> src/bin/09.rs:9:13
[INFO] [stdout]   |
[INFO] [stdout] 9 |     let mut new_temp: Vec<i32> = Vec::new();
[INFO] [stdout]   |             ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = help: maybe it is overwritten before being read?
[INFO] [stdout]   = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `input`
[INFO] [stdout]    --> src/bin/07.rs:132:17
[INFO] [stdout]     |
[INFO] [stdout] 132 | pub fn part_two(input: &str) -> Option<u64> {
[INFO] [stdout]     |                 ^^^^^ help: if this is intentional, prefix it with an underscore: `_input`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `number_rows`
[INFO] [stdout]   --> src/bin/11.rs:58:9
[INFO] [stdout]    |
[INFO] [stdout] 58 |     let number_rows = temp_grid.len();
[INFO] [stdout]    |         ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_number_rows`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `number_cols`
[INFO] [stdout]   --> src/bin/11.rs:59:9
[INFO] [stdout]    |
[INFO] [stdout] 59 |     let number_cols = temp_grid[0].len();
[INFO] [stdout]    |         ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_number_cols`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/bin/11.rs:64:17
[INFO] [stdout]    |
[INFO] [stdout] 64 |             for i in 0..n_rows {
[INFO] [stdout]    |                 ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `time` is never read
[INFO] [stdout]  --> src/bin/06.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct Runs {
[INFO] [stdout]   |            ---- field in this struct
[INFO] [stdout] 7 |     time: u32,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Runs` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]  --> src/bin/01.rs:5:9
[INFO] [stdout]   |
[INFO] [stdout] 5 |     let mut sum = 0;
[INFO] [stdout]   |         ----^^^
[INFO] [stdout]   |         |
[INFO] [stdout]   |         help: remove this `mut`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `digits`
[INFO] [stdout]   --> src/bin/01.rs:42:13
[INFO] [stdout]    |
[INFO] [stdout] 42 |         let digits = ["0", "1", "2", "3", "4", "5", "6", "7", "8", "9"];
[INFO] [stdout]    |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_digits`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `input`
[INFO] [stdout]    --> src/bin/05.rs:105:17
[INFO] [stdout]     |
[INFO] [stdout] 105 | pub fn part_two(input: &str) -> Option<u64> {
[INFO] [stdout]     |                 ^^^^^ help: if this is intentional, prefix it with an underscore: `_input`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `double_rows_without_char` is never used
[INFO] [stdout]   --> src/bin/11.rs:24:4
[INFO] [stdout]    |
[INFO] [stdout] 24 | fn double_rows_without_char(grid: Vec<Vec<char>>, ch: char, n_rows: u64) -> Vec<Vec<char>> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `rotate_grid` is never used
[INFO] [stdout]   --> src/bin/11.rs:40:4
[INFO] [stdout]    |
[INFO] [stdout] 40 | fn rotate_grid(grid: Vec<Vec<char>>) -> Vec<Vec<char>> {
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `double_columns_without_char` is never used
[INFO] [stdout]   --> src/bin/11.rs:55:4
[INFO] [stdout]    |
[INFO] [stdout] 55 | fn double_columns_without_char(grid: Vec<Vec<char>>, ch: char, n_rows: u64) -> Vec<Vec<char>> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/bin/04.rs:46:13
[INFO] [stdout]    |
[INFO] [stdout] 46 |         for i in 1..counter {
[INFO] [stdout]    |             ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `input`
[INFO] [stdout]    --> src/bin/05.rs:105:17
[INFO] [stdout]     |
[INFO] [stdout] 105 | pub fn part_two(input: &str) -> Option<u64> {
[INFO] [stdout]     |                 ^^^^^ help: if this is intentional, prefix it with an underscore: `_input`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `input`
[INFO] [stdout]    --> src/bin/07.rs:132:17
[INFO] [stdout]     |
[INFO] [stdout] 132 | pub fn part_two(input: &str) -> Option<u64> {
[INFO] [stdout]     |                 ^^^^^ help: if this is intentional, prefix it with an underscore: `_input`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `input`
[INFO] [stdout]    --> src/bin/03.rs:125:17
[INFO] [stdout]     |
[INFO] [stdout] 125 | pub fn part_two(input: &str) -> Option<u32> {
[INFO] [stdout]     |                 ^^^^^ help: if this is intentional, prefix it with an underscore: `_input`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `input_unused`
[INFO] [stdout]    --> src/bin/03.rs:151:13
[INFO] [stdout]     |
[INFO] [stdout] 151 |         let input_unused="
[INFO] [stdout]     |             ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_input_unused`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `id` is never read
[INFO] [stdout]  --> src/bin/04.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct Card {
[INFO] [stdout]   |            ---- field in this struct
[INFO] [stdout] 5 |     id: u32,
[INFO] [stdout]   |     ^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Card` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> src/bin/04.rs:94:9
[INFO] [stdout]    |
[INFO] [stdout] 94 |         &total_cards.push(temp_card);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 94 |         let _ = &total_cards.push(temp_card);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `id` is never read
[INFO] [stdout]   --> src/bin/02.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | struct Game {
[INFO] [stdout]    |        ---- field in this struct
[INFO] [stdout] 14 |     // TODO
[INFO] [stdout] 15 |     id: u32,
[INFO] [stdout]    |     ^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Game` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::task::Wake`
[INFO] [stdout]  --> src/bin/06.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::task::Wake;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::borrow::BorrowMut`
[INFO] [stdout]  --> src/bin/02.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::borrow::BorrowMut;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `current_node_key` is never read
[INFO] [stdout]   --> src/bin/08.rs:23:13
[INFO] [stdout]    |
[INFO] [stdout] 23 |     let mut current_node_key: String = String::from("");
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `new_node`
[INFO] [stdout]   --> src/bin/08.rs:24:13
[INFO] [stdout]    |
[INFO] [stdout] 24 |     let mut new_node: String = String::from("");
[INFO] [stdout]    |             ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_new_node`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `direction` is never read
[INFO] [stdout]   --> src/bin/08.rs:27:17
[INFO] [stdout]    |
[INFO] [stdout] 27 |         let mut direction: u32 = 0;
[INFO] [stdout]    |                 ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `time` is never read
[INFO] [stdout]  --> src/bin/06.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct Runs {
[INFO] [stdout]   |            ---- field in this struct
[INFO] [stdout] 7 |     time: u32,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Runs` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/bin/08.rs:24:9
[INFO] [stdout]    |
[INFO] [stdout] 24 |     let mut new_node: String = String::from("");
[INFO] [stdout]    |         ----^^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `input`
[INFO] [stdout]   --> src/bin/08.rs:45:17
[INFO] [stdout]    |
[INFO] [stdout] 45 | pub fn part_two(input: &str) -> Option<u32> {
[INFO] [stdout]    |                 ^^^^^ help: if this is intentional, prefix it with an underscore: `_input`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/bin/11.rs:29:17
[INFO] [stdout]    |
[INFO] [stdout] 29 |             for i in 0..n_rows {
[INFO] [stdout]    |                 ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `number_rows`
[INFO] [stdout]   --> src/bin/11.rs:58:9
[INFO] [stdout]    |
[INFO] [stdout] 58 |     let number_rows = temp_grid.len();
[INFO] [stdout]    |         ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_number_rows`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `number_cols`
[INFO] [stdout]   --> src/bin/11.rs:59:9
[INFO] [stdout]    |
[INFO] [stdout] 59 |     let number_cols = temp_grid[0].len();
[INFO] [stdout]    |         ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_number_cols`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/bin/11.rs:64:17
[INFO] [stdout]    |
[INFO] [stdout] 64 |             for i in 0..n_rows {
[INFO] [stdout]    |                 ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `double_rows_without_char` is never used
[INFO] [stdout]   --> src/bin/11.rs:24:4
[INFO] [stdout]    |
[INFO] [stdout] 24 | fn double_rows_without_char(grid: Vec<Vec<char>>, ch: char, n_rows: u64) -> Vec<Vec<char>> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `rotate_grid` is never used
[INFO] [stdout]   --> src/bin/11.rs:40:4
[INFO] [stdout]    |
[INFO] [stdout] 40 | fn rotate_grid(grid: Vec<Vec<char>>) -> Vec<Vec<char>> {
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `double_columns_without_char` is never used
[INFO] [stdout]   --> src/bin/11.rs:55:4
[INFO] [stdout]    |
[INFO] [stdout] 55 | fn double_columns_without_char(grid: Vec<Vec<char>>, ch: char, n_rows: u64) -> Vec<Vec<char>> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `path`
[INFO] [stdout]    --> src/bin/10.rs:104:9
[INFO] [stdout]     |
[INFO] [stdout] 104 |     let path: HashSet<Vect2D> = collect_path(&map);
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_path`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/bin/10.rs:90:23
[INFO] [stdout]    |
[INFO] [stdout] 90 | fn parse_input(input: &str) -> Map {
[INFO] [stdout]    |                       ^^^^     ^^^ the same lifetime is hidden here
[INFO] [stdout]    |                       |
[INFO] [stdout]    |                       the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 90 | fn parse_input(input: &str) -> Map<'_> {
[INFO] [stdout]    |                                   ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `id` is never read
[INFO] [stdout]   --> src/bin/02.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | struct Game {
[INFO] [stdout]    |        ---- field in this struct
[INFO] [stdout] 14 |     // TODO
[INFO] [stdout] 15 |     id: u32,
[INFO] [stdout]    |     ^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Game` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `path`
[INFO] [stdout]    --> src/bin/10.rs:104:9
[INFO] [stdout]     |
[INFO] [stdout] 104 |     let path: HashSet<Vect2D> = collect_path(&map);
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_path`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/bin/10.rs:90:23
[INFO] [stdout]    |
[INFO] [stdout] 90 | fn parse_input(input: &str) -> Map {
[INFO] [stdout]    |                       ^^^^     ^^^ the same lifetime is hidden here
[INFO] [stdout]    |                       |
[INFO] [stdout]    |                       the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 90 | fn parse_input(input: &str) -> Map<'_> {
[INFO] [stdout]    |                                   ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `current_node_key` is never read
[INFO] [stdout]   --> src/bin/08.rs:23:13
[INFO] [stdout]    |
[INFO] [stdout] 23 |     let mut current_node_key: String = String::from("");
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `new_node`
[INFO] [stdout]   --> src/bin/08.rs:24:13
[INFO] [stdout]    |
[INFO] [stdout] 24 |     let mut new_node: String = String::from("");
[INFO] [stdout]    |             ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_new_node`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `direction` is never read
[INFO] [stdout]   --> src/bin/08.rs:27:17
[INFO] [stdout]    |
[INFO] [stdout] 27 |         let mut direction: u32 = 0;
[INFO] [stdout]    |                 ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `input`
[INFO] [stdout]  --> src/bin/12.rs:3:17
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn part_one(input: &str) -> Option<u32> {
[INFO] [stdout]   |                 ^^^^^ help: if this is intentional, prefix it with an underscore: `_input`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `input`
[INFO] [stdout]  --> src/bin/12.rs:7:17
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub fn part_two(input: &str) -> Option<u32> {
[INFO] [stdout]   |                 ^^^^^ help: if this is intentional, prefix it with an underscore: `_input`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/bin/08.rs:24:9
[INFO] [stdout]    |
[INFO] [stdout] 24 |     let mut new_node: String = String::from("");
[INFO] [stdout]    |         ----^^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `input`
[INFO] [stdout]   --> src/bin/08.rs:45:17
[INFO] [stdout]    |
[INFO] [stdout] 45 | pub fn part_two(input: &str) -> Option<u32> {
[INFO] [stdout]    |                 ^^^^^ help: if this is intentional, prefix it with an underscore: `_input`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.63s
[INFO] running `Command { std: "docker" "inspect" "8407406fda41728aedac5f50876025090ee7c7c6da0572f3838c852e23647a03", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8407406fda41728aedac5f50876025090ee7c7c6da0572f3838c852e23647a03", kill_on_drop: false }`
[INFO] [stdout] 8407406fda41728aedac5f50876025090ee7c7c6da0572f3838c852e23647a03