[INFO] cloning repository https://github.com/taigi100/AoC23
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/taigi100/AoC23" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftaigi100%2FAoC23", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftaigi100%2FAoC23'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f3910b96d436d874689633d24385d62da8d1cf74
[INFO] checking taigi100/AoC23 against master#c3def263a44e07e09ae6d57abfc8650227fb4972 for pr-118833
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftaigi100%2FAoC23" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/taigi100/AoC23 on toolchain c3def263a44e07e09ae6d57abfc8650227fb4972
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c3def263a44e07e09ae6d57abfc8650227fb4972" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/taigi100/AoC23
[INFO] finished tweaking git repo https://github.com/taigi100/AoC23
[INFO] tweaked toml for git repo https://github.com/taigi100/AoC23 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/taigi100/AoC23 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" "+c3def263a44e07e09ae6d57abfc8650227fb4972" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[ERROR] this task or one of its parent failed!
[ERROR] no output for 300 seconds
[ERROR] note: run with `RUST_BACKTRACE=1` to display a backtrace.
[INFO] checking taigi100/AoC23 against try#29596578cb5035fa2b7ac7fbdfea23fab38836e7 for pr-118833
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftaigi100%2FAoC23" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/taigi100/AoC23 on toolchain 29596578cb5035fa2b7ac7fbdfea23fab38836e7
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+29596578cb5035fa2b7ac7fbdfea23fab38836e7" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/taigi100/AoC23
[INFO] finished tweaking git repo https://github.com/taigi100/AoC23
[INFO] tweaked toml for git repo https://github.com/taigi100/AoC23 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/taigi100/AoC23 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" "+29596578cb5035fa2b7ac7fbdfea23fab38836e7" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+29596578cb5035fa2b7ac7fbdfea23fab38836e7" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7b58c4c4608e6c86c0e590bce5f58733b4c3e061e82dffecc01b9001cc47454a
[INFO] running `Command { std: "docker" "start" "-a" "7b58c4c4608e6c86c0e590bce5f58733b4c3e061e82dffecc01b9001cc47454a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7b58c4c4608e6c86c0e590bce5f58733b4c3e061e82dffecc01b9001cc47454a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7b58c4c4608e6c86c0e590bce5f58733b4c3e061e82dffecc01b9001cc47454a", kill_on_drop: false }`
[INFO] [stdout] 7b58c4c4608e6c86c0e590bce5f58733b4c3e061e82dffecc01b9001cc47454a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+29596578cb5035fa2b7ac7fbdfea23fab38836e7" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 475938233d9e49fbbf4a689b81ca4dbb75dd57f7b0cee6f29949fcd4891f77bc
[INFO] running `Command { std: "docker" "start" "-a" "475938233d9e49fbbf4a689b81ca4dbb75dd57f7b0cee6f29949fcd4891f77bc", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]     Checking either v1.9.0
[INFO] [stderr]     Checking strength_reduce v0.2.4
[INFO] [stderr]     Checking itertools v0.12.0
[INFO] [stderr]    Compiling num-traits v0.2.17
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling num-bigint v0.4.4
[INFO] [stderr]    Compiling num-iter v0.1.43
[INFO] [stderr]    Compiling num-rational v0.4.1
[INFO] [stderr]     Checking num-complex v0.4.4
[INFO] [stderr]     Checking transpose v0.2.2
[INFO] [stderr]     Checking num v0.4.1
[INFO] [stderr]     Checking AoC23 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/main.rs:18:16
[INFO] [stdout]    |
[INFO] [stdout] 18 |             if (i == 0 && grid[&(i, j)] == '.') {
[INFO] [stdout]    |                ^                              ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 18 -             if (i == 0 && grid[&(i, j)] == '.') {
[INFO] [stdout] 18 +             if i == 0 && grid[&(i, j)] == '.' {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/main.rs:21:16
[INFO] [stdout]    |
[INFO] [stdout] 21 |             if (i == data.lines().count() - 1 && grid[&(i, j)] == '.') {
[INFO] [stdout]    |                ^                                                     ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 21 -             if (i == data.lines().count() - 1 && grid[&(i, j)] == '.') {
[INFO] [stdout] 21 +             if i == data.lines().count() - 1 && grid[&(i, j)] == '.' {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]   --> src/main.rs:39:22
[INFO] [stdout]    |
[INFO] [stdout] 39 |             let dx = (i as isize + di);
[INFO] [stdout]    |                      ^               ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 39 -             let dx = (i as isize + di);
[INFO] [stdout] 39 +             let dx = i as isize + di;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]   --> src/main.rs:40:22
[INFO] [stdout]    |
[INFO] [stdout] 40 |             let dy = (j as isize + dj);
[INFO] [stdout]    |                      ^               ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 40 -             let dy = (j as isize + dj);
[INFO] [stdout] 40 +             let dy = j as isize + dj;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/main.rs:92:16
[INFO] [stdout]    |
[INFO] [stdout] 92 |             if (distance > 1) {
[INFO] [stdout]    |                ^            ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 92 -             if (distance > 1) {
[INFO] [stdout] 92 +             if distance > 1 {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `for` iterator expression
[INFO] [stdout]    --> src/main.rs:238:22
[INFO] [stdout]     |
[INFO] [stdout] 238 |             for x in (b.0 .0..=b.1 .0) {
[INFO] [stdout]     |                      ^               ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 238 -             for x in (b.0 .0..=b.1 .0) {
[INFO] [stdout] 238 +             for x in b.0 .0..=b.1 .0 {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `for` iterator expression
[INFO] [stdout]    --> src/main.rs:239:26
[INFO] [stdout]     |
[INFO] [stdout] 239 |                 for y in (b.0 .1..=b.1 .1) {
[INFO] [stdout]     |                          ^               ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 239 -                 for y in (b.0 .1..=b.1 .1) {
[INFO] [stdout] 239 +                 for y in b.0 .1..=b.1 .1 {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `match` scrutinee expression
[INFO] [stdout]    --> src/main.rs:716:40
[INFO] [stdout]     |
[INFO] [stdout] 716 |             let mut valid_dirs = match (dir) {
[INFO] [stdout]     |                                        ^   ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 716 -             let mut valid_dirs = match (dir) {
[INFO] [stdout] 716 +             let mut valid_dirs = match dir {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/main.rs:790:62
[INFO] [stdout]     |
[INFO] [stdout] 790 |         seen: &mut HashMap<((usize, usize), (isize, isize)), (u32)>,
[INFO] [stdout]     |                                                              ^   ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 790 -         seen: &mut HashMap<((usize, usize), (isize, isize)), (u32)>,
[INFO] [stdout] 790 +         seen: &mut HashMap<((usize, usize), (isize, isize)), u32>,
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/main.rs:18:16
[INFO] [stdout]    |
[INFO] [stdout] 18 |             if (i == 0 && grid[&(i, j)] == '.') {
[INFO] [stdout]    |                ^                              ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 18 -             if (i == 0 && grid[&(i, j)] == '.') {
[INFO] [stdout] 18 +             if i == 0 && grid[&(i, j)] == '.' {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/main.rs:21:16
[INFO] [stdout]    |
[INFO] [stdout] 21 |             if (i == data.lines().count() - 1 && grid[&(i, j)] == '.') {
[INFO] [stdout]    |                ^                                                     ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 21 -             if (i == data.lines().count() - 1 && grid[&(i, j)] == '.') {
[INFO] [stdout] 21 +             if i == data.lines().count() - 1 && grid[&(i, j)] == '.' {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]   --> src/main.rs:39:22
[INFO] [stdout]    |
[INFO] [stdout] 39 |             let dx = (i as isize + di);
[INFO] [stdout]    |                      ^               ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 39 -             let dx = (i as isize + di);
[INFO] [stdout] 39 +             let dx = i as isize + di;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]   --> src/main.rs:40:22
[INFO] [stdout]    |
[INFO] [stdout] 40 |             let dy = (j as isize + dj);
[INFO] [stdout]    |                      ^               ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 40 -             let dy = (j as isize + dj);
[INFO] [stdout] 40 +             let dy = j as isize + dj;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/main.rs:92:16
[INFO] [stdout]    |
[INFO] [stdout] 92 |             if (distance > 1) {
[INFO] [stdout]    |                ^            ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 92 -             if (distance > 1) {
[INFO] [stdout] 92 +             if distance > 1 {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `for` iterator expression
[INFO] [stdout]    --> src/main.rs:238:22
[INFO] [stdout]     |
[INFO] [stdout] 238 |             for x in (b.0 .0..=b.1 .0) {
[INFO] [stdout]     |                      ^               ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 238 -             for x in (b.0 .0..=b.1 .0) {
[INFO] [stdout] 238 +             for x in b.0 .0..=b.1 .0 {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `for` iterator expression
[INFO] [stdout]    --> src/main.rs:239:26
[INFO] [stdout]     |
[INFO] [stdout] 239 |                 for y in (b.0 .1..=b.1 .1) {
[INFO] [stdout]     |                          ^               ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 239 -                 for y in (b.0 .1..=b.1 .1) {
[INFO] [stdout] 239 +                 for y in b.0 .1..=b.1 .1 {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `match` scrutinee expression
[INFO] [stdout]    --> src/main.rs:716:40
[INFO] [stdout]     |
[INFO] [stdout] 716 |             let mut valid_dirs = match (dir) {
[INFO] [stdout]     |                                        ^   ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 716 -             let mut valid_dirs = match (dir) {
[INFO] [stdout] 716 +             let mut valid_dirs = match dir {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/main.rs:790:62
[INFO] [stdout]     |
[INFO] [stdout] 790 |         seen: &mut HashMap<((usize, usize), (isize, isize)), (u32)>,
[INFO] [stdout]     |                                                              ^   ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 790 -         seen: &mut HashMap<((usize, usize), (isize, isize)), (u32)>,
[INFO] [stdout] 790 +         seen: &mut HashMap<((usize, usize), (isize, isize)), u32>,
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable statement
[INFO] [stdout]    --> src/main.rs:617:21
[INFO] [stdout]     |
[INFO] [stdout] 616 |                     return ans;
[INFO] [stdout]     |                     ---------- any code following this expression is unreachable
[INFO] [stdout] 617 |                     continue;
[INFO] [stdout]     |                     ^^^^^^^^^ unreachable statement
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable statement
[INFO] [stdout]    --> src/main.rs:617:21
[INFO] [stdout]     |
[INFO] [stdout] 616 |                     return ans;
[INFO] [stdout]     |                     ---------- any code following this expression is unreachable
[INFO] [stdout] 617 |                     continue;
[INFO] [stdout]     |                     ^^^^^^^^^ unreachable statement
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `p2` is never read
[INFO] [stdout]   --> src/main.rs:11:22
[INFO] [stdout]    |
[INFO] [stdout] 11 |     let (mut p1, mut p2) = (0, 0);
[INFO] [stdout]    |                      ^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:11:10
[INFO] [stdout]    |
[INFO] [stdout] 11 |     let (mut p1, mut p2) = (0, 0);
[INFO] [stdout]    |          ----^^
[INFO] [stdout]    |          |
[INFO] [stdout]    |          help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:135:13
[INFO] [stdout]     |
[INFO] [stdout] 135 |         let mut path = vec![start];
[INFO] [stdout]     |             ----^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:251:14
[INFO] [stdout]     |
[INFO] [stdout] 251 |         let (mut falls, _) = drop(removed);
[INFO] [stdout]     |              ----^^^^^
[INFO] [stdout]     |              |
[INFO] [stdout]     |              help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `p1` is never read
[INFO] [stdout]    --> src/main.rs:263:14
[INFO] [stdout]     |
[INFO] [stdout] 263 |     let (mut p1, mut p2) = (0, 0);
[INFO] [stdout]     |              ^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `gradens_counter` is assigned to, but never used
[INFO] [stdout]    --> src/main.rs:269:13
[INFO] [stdout]     |
[INFO] [stdout] 269 |     let mut gradens_counter = 0;
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: consider using `_gradens_counter` instead
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `N`
[INFO] [stdout]    --> src/main.rs:302:9
[INFO] [stdout]     |
[INFO] [stdout] 302 |     let N = grid.len() as i64;
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_N`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:263:18
[INFO] [stdout]     |
[INFO] [stdout] 263 |     let (mut p1, mut p2) = (0, 0);
[INFO] [stdout]     |                  ----^^
[INFO] [stdout]     |                  |
[INFO] [stdout]     |                  help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]    --> src/main.rs:367:10
[INFO] [stdout]     |
[INFO] [stdout] 367 |     for (n, v) in &graph {
[INFO] [stdout]     |          ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `node`
[INFO] [stdout]    --> src/main.rs:391:10
[INFO] [stdout]     |
[INFO] [stdout] 391 |     for (node, conj) in &mut conjunctions {
[INFO] [stdout]     |          ^^^^ help: if this is intentional, prefix it with an underscore: `_node`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]    --> src/main.rs:485:24
[INFO] [stdout]     |
[INFO] [stdout] 485 |                 .map(|(s, v)| *v as u64)
[INFO] [stdout]     |                        ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:336:10
[INFO] [stdout]     |
[INFO] [stdout] 336 |     let (mut p1, mut p2) = (0, 0);
[INFO] [stdout]     |          ----^^
[INFO] [stdout]     |          |
[INFO] [stdout]     |          help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `v`
[INFO] [stdout]    --> src/main.rs:435:53
[INFO] [stdout]     |
[INFO] [stdout] 435 |                         if conjunction.iter().any(|(v, s)| *s == -1) {
[INFO] [stdout]     |                                                     ^ help: if this is intentional, prefix it with an underscore: `_v`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `p2` is never read
[INFO] [stdout]    --> src/main.rs:497:22
[INFO] [stdout]     |
[INFO] [stdout] 497 |     let (mut p1, mut p2) = (0, 0);
[INFO] [stdout]     |                      ^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:591:25
[INFO] [stdout]     |
[INFO] [stdout] 591 |             let (l, op, mut v) = (
[INFO] [stdout]     |                         ----^
[INFO] [stdout]     |                         |
[INFO] [stdout]     |                         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]    --> src/main.rs:653:14
[INFO] [stdout]     |
[INFO] [stdout] 653 |     let (mut n, mut m) = (0, 0);
[INFO] [stdout]     |              ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `m`
[INFO] [stdout]    --> src/main.rs:653:21
[INFO] [stdout]     |
[INFO] [stdout] 653 |     let (mut n, mut m) = (0, 0);
[INFO] [stdout]     |                     ^ help: if this is intentional, prefix it with an underscore: `_m`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `dir`
[INFO] [stdout]    --> src/main.rs:661:13
[INFO] [stdout]     |
[INFO] [stdout] 661 |         let dir = line.split_whitespace().nth(0).unwrap();
[INFO] [stdout]     |             ^^^ help: if this is intentional, prefix it with an underscore: `_dir`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `cnt` is never read
[INFO] [stdout]    --> src/main.rs:662:17
[INFO] [stdout]     |
[INFO] [stdout] 662 |         let mut cnt = line
[INFO] [stdout]     |                 ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:650:10
[INFO] [stdout]     |
[INFO] [stdout] 650 |     let (mut p1, mut p2) = (0, 0);
[INFO] [stdout]     |          ----^^
[INFO] [stdout]     |          |
[INFO] [stdout]     |          help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:650:18
[INFO] [stdout]     |
[INFO] [stdout] 650 |     let (mut p1, mut p2) = (0, 0);
[INFO] [stdout]     |                  ----^^
[INFO] [stdout]     |                  |
[INFO] [stdout]     |                  help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:653:10
[INFO] [stdout]     |
[INFO] [stdout] 653 |     let (mut n, mut m) = (0, 0);
[INFO] [stdout]     |          ----^
[INFO] [stdout]     |          |
[INFO] [stdout]     |          help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:653:17
[INFO] [stdout]     |
[INFO] [stdout] 653 |     let (mut n, mut m) = (0, 0);
[INFO] [stdout]     |                 ----^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:675:13
[INFO] [stdout]     |
[INFO] [stdout] 675 |         let mut direction = match color.as_bytes()[color.len() - 1] {
[INFO] [stdout]     |             ----^^^^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `p1` is never read
[INFO] [stdout]    --> src/main.rs:698:14
[INFO] [stdout]     |
[INFO] [stdout] 698 |     let (mut p1, mut p2) = (0, 0);
[INFO] [stdout]     |              ^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `p2` is never read
[INFO] [stdout]    --> src/main.rs:698:22
[INFO] [stdout]     |
[INFO] [stdout] 698 |     let (mut p1, mut p2) = (0, 0);
[INFO] [stdout]     |                      ^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `dirs`
[INFO] [stdout]    --> src/main.rs:699:9
[INFO] [stdout]     |
[INFO] [stdout] 699 |     let dirs = [(1, 0), (0, 1), (-1, 0), (0, -1)];
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_dirs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `location`
[INFO] [stdout]    --> src/main.rs:710:17
[INFO] [stdout]     |
[INFO] [stdout] 710 |         let mut location = (0, 0);
[INFO] [stdout]     |                 ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_location`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cost`
[INFO] [stdout]    --> src/main.rs:715:18
[INFO] [stdout]     |
[INFO] [stdout] 715 |             let (cost, steps, node, dir) = item;
[INFO] [stdout]     |                  ^^^^ help: if this is intentional, prefix it with an underscore: `_cost`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:710:13
[INFO] [stdout]     |
[INFO] [stdout] 710 |         let mut location = (0, 0);
[INFO] [stdout]     |             ----^^^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `p1` is never read
[INFO] [stdout]    --> src/main.rs:780:14
[INFO] [stdout]     |
[INFO] [stdout] 780 |     let (mut p1, mut p2) = (0, 0);
[INFO] [stdout]     |              ^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `p2` is never read
[INFO] [stdout]    --> src/main.rs:780:22
[INFO] [stdout]     |
[INFO] [stdout] 780 |     let (mut p1, mut p2) = (0, 0);
[INFO] [stdout]     |                      ^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `p2` is never read
[INFO] [stdout]     --> src/main.rs:1005:22
[INFO] [stdout]      |
[INFO] [stdout] 1005 |     let (mut p1, mut p2) = (0, 0);
[INFO] [stdout]      |                      ^^
[INFO] [stdout]      |
[INFO] [stdout]      = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]     --> src/main.rs:1005:10
[INFO] [stdout]      |
[INFO] [stdout] 1005 |     let (mut p1, mut p2) = (0, 0);
[INFO] [stdout]      |          ----^^
[INFO] [stdout]      |          |
[INFO] [stdout]      |          help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]     --> src/main.rs:1105:18
[INFO] [stdout]      |
[INFO] [stdout] 1105 |     let (mut p1, mut p2) = (0, 0);
[INFO] [stdout]      |                  ----^^
[INFO] [stdout]      |                  |
[INFO] [stdout]      |                  help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `parity` is never read
[INFO] [stdout]     --> src/main.rs:1453:13
[INFO] [stdout]      |
[INFO] [stdout] 1453 |     let mut parity = 0;
[INFO] [stdout]      |             ^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `p2` is never read
[INFO] [stdout]   --> src/main.rs:11:22
[INFO] [stdout]    |
[INFO] [stdout] 11 |     let (mut p1, mut p2) = (0, 0);
[INFO] [stdout]    |                      ^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `p2` is never read
[INFO] [stdout]     --> src/main.rs:1519:22
[INFO] [stdout]      |
[INFO] [stdout] 1519 |     let (mut p1, mut p2) = (0, 0);
[INFO] [stdout]      |                      ^^
[INFO] [stdout]      |
[INFO] [stdout]      = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]     --> src/main.rs:1569:10
[INFO] [stdout]      |
[INFO] [stdout] 1569 |     let (mut p1, mut p2) = (0, 0);
[INFO] [stdout]      |          ----^^
[INFO] [stdout]      |          |
[INFO] [stdout]      |          help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `p1` is never read
[INFO] [stdout]     --> src/main.rs:1641:14
[INFO] [stdout]      |
[INFO] [stdout] 1641 |     let (mut p1, mut p2) = (0, 0.0);
[INFO] [stdout]      |              ^^
[INFO] [stdout]      |
[INFO] [stdout]      = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `p2` is never read
[INFO] [stdout]     --> src/main.rs:1641:22
[INFO] [stdout]      |
[INFO] [stdout] 1641 |     let (mut p1, mut p2) = (0, 0.0);
[INFO] [stdout]      |                      ^^
[INFO] [stdout]      |
[INFO] [stdout]      = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:11:10
[INFO] [stdout]    |
[INFO] [stdout] 11 |     let (mut p1, mut p2) = (0, 0);
[INFO] [stdout]    |          ----^^
[INFO] [stdout]    |          |
[INFO] [stdout]    |          help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:135:13
[INFO] [stdout]     |
[INFO] [stdout] 135 |         let mut path = vec![start];
[INFO] [stdout]     |             ----^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `p1` is never read
[INFO] [stdout]     --> src/main.rs:1693:14
[INFO] [stdout]      |
[INFO] [stdout] 1693 |     let (mut p1, mut p2) = (0, 0);
[INFO] [stdout]      |              ^^
[INFO] [stdout]      |
[INFO] [stdout]      = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `p2` is never read
[INFO] [stdout]     --> src/main.rs:1693:22
[INFO] [stdout]      |
[INFO] [stdout] 1693 |     let (mut p1, mut p2) = (0, 0);
[INFO] [stdout]      |                      ^^
[INFO] [stdout]      |
[INFO] [stdout]      = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `counter` is assigned to, but never used
[INFO] [stdout]     --> src/main.rs:1706:13
[INFO] [stdout]      |
[INFO] [stdout] 1706 |     let mut counter = -1;
[INFO] [stdout]      |             ^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: consider using `_counter` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `i` is never read
[INFO] [stdout]     --> src/main.rs:1742:5
[INFO] [stdout]      |
[INFO] [stdout] 1742 |     i = 0;
[INFO] [stdout]      |     ^
[INFO] [stdout]      |
[INFO] [stdout]      = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:251:14
[INFO] [stdout]     |
[INFO] [stdout] 251 |         let (mut falls, _) = drop(removed);
[INFO] [stdout]     |              ----^^^^^
[INFO] [stdout]     |              |
[INFO] [stdout]     |              help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `p1` is never read
[INFO] [stdout]    --> src/main.rs:263:14
[INFO] [stdout]     |
[INFO] [stdout] 263 |     let (mut p1, mut p2) = (0, 0);
[INFO] [stdout]     |              ^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `gradens_counter` is assigned to, but never used
[INFO] [stdout]    --> src/main.rs:269:13
[INFO] [stdout]     |
[INFO] [stdout] 269 |     let mut gradens_counter = 0;
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: consider using `_gradens_counter` instead
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `N`
[INFO] [stdout]    --> src/main.rs:302:9
[INFO] [stdout]     |
[INFO] [stdout] 302 |     let N = grid.len() as i64;
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_N`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:263:18
[INFO] [stdout]     |
[INFO] [stdout] 263 |     let (mut p1, mut p2) = (0, 0);
[INFO] [stdout]     |                  ----^^
[INFO] [stdout]     |                  |
[INFO] [stdout]     |                  help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `r` is never read
[INFO] [stdout]     --> src/main.rs:1872:17
[INFO] [stdout]      |
[INFO] [stdout] 1872 |         let mut r = 0;
[INFO] [stdout]      |                 ^
[INFO] [stdout]      |
[INFO] [stdout]      = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `g` is never read
[INFO] [stdout]     --> src/main.rs:1873:17
[INFO] [stdout]      |
[INFO] [stdout] 1873 |         let mut g = 0;
[INFO] [stdout]      |                 ^
[INFO] [stdout]      |
[INFO] [stdout]      = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `b` is never read
[INFO] [stdout]     --> src/main.rs:1874:17
[INFO] [stdout]      |
[INFO] [stdout] 1874 |         let mut b = 0;
[INFO] [stdout]      |                 ^
[INFO] [stdout]      |
[INFO] [stdout]      = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]    --> src/main.rs:367:10
[INFO] [stdout]     |
[INFO] [stdout] 367 |     for (n, v) in &graph {
[INFO] [stdout]     |          ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `node`
[INFO] [stdout]    --> src/main.rs:391:10
[INFO] [stdout]     |
[INFO] [stdout] 391 |     for (node, conj) in &mut conjunctions {
[INFO] [stdout]     |          ^^^^ help: if this is intentional, prefix it with an underscore: `_node`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `l`
[INFO] [stdout]     --> src/main.rs:1942:26
[INFO] [stdout]      |
[INFO] [stdout] 1942 |         let get_digit = |l: String| -> (i32, i32) {
[INFO] [stdout]      |                          ^ help: if this is intentional, prefix it with an underscore: `_l`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]    --> src/main.rs:485:24
[INFO] [stdout]     |
[INFO] [stdout] 485 |                 .map(|(s, v)| *v as u64)
[INFO] [stdout]     |                        ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]     --> src/main.rs:1926:17
[INFO] [stdout]      |
[INFO] [stdout] 1926 |             let mut aux = result;
[INFO] [stdout]      |                 ----^^^
[INFO] [stdout]      |                 |
[INFO] [stdout]      |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]     --> src/main.rs:1919:9
[INFO] [stdout]      |
[INFO] [stdout] 1919 |     let mut lines = data.lines();
[INFO] [stdout]      |         ----^^^^^
[INFO] [stdout]      |         |
[INFO] [stdout]      |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: crate `AoC23` should have a snake case name
[INFO] [stdout]   |
[INFO] [stdout]   = help: convert the identifier to snake case: `ao_c23`
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `S` should have a snake case name
[INFO] [stdout]   --> src/main.rs:54:13
[INFO] [stdout]    |
[INFO] [stdout] 54 |     let mut S = VecDeque::new();
[INFO] [stdout]    |             ^ help: convert the identifier to snake case (notice the capitalization): `s`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `DFS` should have a snake case name
[INFO] [stdout]    --> src/main.rs:123:8
[INFO] [stdout]     |
[INFO] [stdout] 123 |     fn DFS(
[INFO] [stdout]     |        ^^^ help: convert the identifier to snake case: `dfs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `S` should have a snake case name
[INFO] [stdout]    --> src/main.rs:133:17
[INFO] [stdout]     |
[INFO] [stdout] 133 |         let mut S = VecDeque::new();
[INFO] [stdout]     |                 ^ help: convert the identifier to snake case (notice the capitalization): `s`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `N` should have a snake case name
[INFO] [stdout]    --> src/main.rs:302:9
[INFO] [stdout]     |
[INFO] [stdout] 302 |     let N = grid.len() as i64;
[INFO] [stdout]     |         ^ help: convert the identifier to snake case: `n`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]    --> src/main.rs:342:32
[INFO] [stdout]     |
[INFO] [stdout] 342 |         let mut new_line = line.clone();
[INFO] [stdout]     |                                ^^^^^^^^ help: remove this redundant call
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type `str` does not implement `Clone`, so calling `clone` on `&str` copies the reference, which does not do anything and can be removed
[INFO] [stdout]     = note: `#[warn(noop_method_call)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `DFS` should have a snake case name
[INFO] [stdout]    --> src/main.rs:398:8
[INFO] [stdout]     |
[INFO] [stdout] 398 |     fn DFS<'a>(
[INFO] [stdout]     |        ^^^ help: convert the identifier to snake case: `dfs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: comparison is useless due to type limits
[INFO] [stdout]     --> src/main.rs:1427:16
[INFO] [stdout]      |
[INFO] [stdout] 1427 |             if x < 0 || x >= lines || y < 0 || y >= cols {
[INFO] [stdout]      |                ^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_comparisons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: comparison is useless due to type limits
[INFO] [stdout]     --> src/main.rs:1427:39
[INFO] [stdout]      |
[INFO] [stdout] 1427 |             if x < 0 || x >= lines || y < 0 || y >= cols {
[INFO] [stdout]      |                                       ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:336:10
[INFO] [stdout]     |
[INFO] [stdout] 336 |     let (mut p1, mut p2) = (0, 0);
[INFO] [stdout]     |          ----^^
[INFO] [stdout]     |          |
[INFO] [stdout]     |          help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `v`
[INFO] [stdout]    --> src/main.rs:435:53
[INFO] [stdout]     |
[INFO] [stdout] 435 |                         if conjunction.iter().any(|(v, s)| *s == -1) {
[INFO] [stdout]     |                                                     ^ help: if this is intentional, prefix it with an underscore: `_v`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `p2` is never read
[INFO] [stdout]    --> src/main.rs:497:22
[INFO] [stdout]     |
[INFO] [stdout] 497 |     let (mut p1, mut p2) = (0, 0);
[INFO] [stdout]     |                      ^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 69 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:591:25
[INFO] [stdout]     |
[INFO] [stdout] 591 |             let (l, op, mut v) = (
[INFO] [stdout]     |                         ----^
[INFO] [stdout]     |                         |
[INFO] [stdout]     |                         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]    --> src/main.rs:653:14
[INFO] [stdout]     |
[INFO] [stdout] 653 |     let (mut n, mut m) = (0, 0);
[INFO] [stdout]     |              ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `m`
[INFO] [stdout]    --> src/main.rs:653:21
[INFO] [stdout]     |
[INFO] [stdout] 653 |     let (mut n, mut m) = (0, 0);
[INFO] [stdout]     |                     ^ help: if this is intentional, prefix it with an underscore: `_m`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `dir`
[INFO] [stdout]    --> src/main.rs:661:13
[INFO] [stdout]     |
[INFO] [stdout] 661 |         let dir = line.split_whitespace().nth(0).unwrap();
[INFO] [stdout]     |             ^^^ help: if this is intentional, prefix it with an underscore: `_dir`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `cnt` is never read
[INFO] [stdout]    --> src/main.rs:662:17
[INFO] [stdout]     |
[INFO] [stdout] 662 |         let mut cnt = line
[INFO] [stdout]     |                 ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:650:10
[INFO] [stdout]     |
[INFO] [stdout] 650 |     let (mut p1, mut p2) = (0, 0);
[INFO] [stdout]     |          ----^^
[INFO] [stdout]     |          |
[INFO] [stdout]     |          help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:650:18
[INFO] [stdout]     |
[INFO] [stdout] 650 |     let (mut p1, mut p2) = (0, 0);
[INFO] [stdout]     |                  ----^^
[INFO] [stdout]     |                  |
[INFO] [stdout]     |                  help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:653:10
[INFO] [stdout]     |
[INFO] [stdout] 653 |     let (mut n, mut m) = (0, 0);
[INFO] [stdout]     |          ----^
[INFO] [stdout]     |          |
[INFO] [stdout]     |          help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:653:17
[INFO] [stdout]     |
[INFO] [stdout] 653 |     let (mut n, mut m) = (0, 0);
[INFO] [stdout]     |                 ----^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:675:13
[INFO] [stdout]     |
[INFO] [stdout] 675 |         let mut direction = match color.as_bytes()[color.len() - 1] {
[INFO] [stdout]     |             ----^^^^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `p1` is never read
[INFO] [stdout]    --> src/main.rs:698:14
[INFO] [stdout]     |
[INFO] [stdout] 698 |     let (mut p1, mut p2) = (0, 0);
[INFO] [stdout]     |              ^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `p2` is never read
[INFO] [stdout]    --> src/main.rs:698:22
[INFO] [stdout]     |
[INFO] [stdout] 698 |     let (mut p1, mut p2) = (0, 0);
[INFO] [stdout]     |                      ^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `dirs`
[INFO] [stdout]    --> src/main.rs:699:9
[INFO] [stdout]     |
[INFO] [stdout] 699 |     let dirs = [(1, 0), (0, 1), (-1, 0), (0, -1)];
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_dirs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `location`
[INFO] [stdout]    --> src/main.rs:710:17
[INFO] [stdout]     |
[INFO] [stdout] 710 |         let mut location = (0, 0);
[INFO] [stdout]     |                 ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_location`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cost`
[INFO] [stdout]    --> src/main.rs:715:18
[INFO] [stdout]     |
[INFO] [stdout] 715 |             let (cost, steps, node, dir) = item;
[INFO] [stdout]     |                  ^^^^ help: if this is intentional, prefix it with an underscore: `_cost`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:710:13
[INFO] [stdout]     |
[INFO] [stdout] 710 |         let mut location = (0, 0);
[INFO] [stdout]     |             ----^^^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `p1` is never read
[INFO] [stdout]    --> src/main.rs:780:14
[INFO] [stdout]     |
[INFO] [stdout] 780 |     let (mut p1, mut p2) = (0, 0);
[INFO] [stdout]     |              ^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `p2` is never read
[INFO] [stdout]    --> src/main.rs:780:22
[INFO] [stdout]     |
[INFO] [stdout] 780 |     let (mut p1, mut p2) = (0, 0);
[INFO] [stdout]     |                      ^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `p2` is never read
[INFO] [stdout]     --> src/main.rs:1005:22
[INFO] [stdout]      |
[INFO] [stdout] 1005 |     let (mut p1, mut p2) = (0, 0);
[INFO] [stdout]      |                      ^^
[INFO] [stdout]      |
[INFO] [stdout]      = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]     --> src/main.rs:1005:10
[INFO] [stdout]      |
[INFO] [stdout] 1005 |     let (mut p1, mut p2) = (0, 0);
[INFO] [stdout]      |          ----^^
[INFO] [stdout]      |          |
[INFO] [stdout]      |          help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]     --> src/main.rs:1105:18
[INFO] [stdout]      |
[INFO] [stdout] 1105 |     let (mut p1, mut p2) = (0, 0);
[INFO] [stdout]      |                  ----^^
[INFO] [stdout]      |                  |
[INFO] [stdout]      |                  help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `parity` is never read
[INFO] [stdout]     --> src/main.rs:1453:13
[INFO] [stdout]      |
[INFO] [stdout] 1453 |     let mut parity = 0;
[INFO] [stdout]      |             ^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `p2` is never read
[INFO] [stdout]     --> src/main.rs:1519:22
[INFO] [stdout]      |
[INFO] [stdout] 1519 |     let (mut p1, mut p2) = (0, 0);
[INFO] [stdout]      |                      ^^
[INFO] [stdout]      |
[INFO] [stdout]      = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]     --> src/main.rs:1569:10
[INFO] [stdout]      |
[INFO] [stdout] 1569 |     let (mut p1, mut p2) = (0, 0);
[INFO] [stdout]      |          ----^^
[INFO] [stdout]      |          |
[INFO] [stdout]      |          help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `p1` is never read
[INFO] [stdout]     --> src/main.rs:1641:14
[INFO] [stdout]      |
[INFO] [stdout] 1641 |     let (mut p1, mut p2) = (0, 0.0);
[INFO] [stdout]      |              ^^
[INFO] [stdout]      |
[INFO] [stdout]      = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `p2` is never read
[INFO] [stdout]     --> src/main.rs:1641:22
[INFO] [stdout]      |
[INFO] [stdout] 1641 |     let (mut p1, mut p2) = (0, 0.0);
[INFO] [stdout]      |                      ^^
[INFO] [stdout]      |
[INFO] [stdout]      = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `p1` is never read
[INFO] [stdout]     --> src/main.rs:1693:14
[INFO] [stdout]      |
[INFO] [stdout] 1693 |     let (mut p1, mut p2) = (0, 0);
[INFO] [stdout]      |              ^^
[INFO] [stdout]      |
[INFO] [stdout]      = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `p2` is never read
[INFO] [stdout]     --> src/main.rs:1693:22
[INFO] [stdout]      |
[INFO] [stdout] 1693 |     let (mut p1, mut p2) = (0, 0);
[INFO] [stdout]      |                      ^^
[INFO] [stdout]      |
[INFO] [stdout]      = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `counter` is assigned to, but never used
[INFO] [stdout]     --> src/main.rs:1706:13
[INFO] [stdout]      |
[INFO] [stdout] 1706 |     let mut counter = -1;
[INFO] [stdout]      |             ^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: consider using `_counter` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `i` is never read
[INFO] [stdout]     --> src/main.rs:1742:5
[INFO] [stdout]      |
[INFO] [stdout] 1742 |     i = 0;
[INFO] [stdout]      |     ^
[INFO] [stdout]      |
[INFO] [stdout]      = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `r` is never read
[INFO] [stdout]     --> src/main.rs:1872:17
[INFO] [stdout]      |
[INFO] [stdout] 1872 |         let mut r = 0;
[INFO] [stdout]      |                 ^
[INFO] [stdout]      |
[INFO] [stdout]      = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `g` is never read
[INFO] [stdout]     --> src/main.rs:1873:17
[INFO] [stdout]      |
[INFO] [stdout] 1873 |         let mut g = 0;
[INFO] [stdout]      |                 ^
[INFO] [stdout]      |
[INFO] [stdout]      = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `b` is never read
[INFO] [stdout]     --> src/main.rs:1874:17
[INFO] [stdout]      |
[INFO] [stdout] 1874 |         let mut b = 0;
[INFO] [stdout]      |                 ^
[INFO] [stdout]      |
[INFO] [stdout]      = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `l`
[INFO] [stdout]     --> src/main.rs:1942:26
[INFO] [stdout]      |
[INFO] [stdout] 1942 |         let get_digit = |l: String| -> (i32, i32) {
[INFO] [stdout]      |                          ^ help: if this is intentional, prefix it with an underscore: `_l`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]     --> src/main.rs:1926:17
[INFO] [stdout]      |
[INFO] [stdout] 1926 |             let mut aux = result;
[INFO] [stdout]      |                 ----^^^
[INFO] [stdout]      |                 |
[INFO] [stdout]      |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]     --> src/main.rs:1919:9
[INFO] [stdout]      |
[INFO] [stdout] 1919 |     let mut lines = data.lines();
[INFO] [stdout]      |         ----^^^^^
[INFO] [stdout]      |         |
[INFO] [stdout]      |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: crate `AoC23` should have a snake case name
[INFO] [stdout]   |
[INFO] [stdout]   = help: convert the identifier to snake case: `ao_c23`
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `S` should have a snake case name
[INFO] [stdout]   --> src/main.rs:54:13
[INFO] [stdout]    |
[INFO] [stdout] 54 |     let mut S = VecDeque::new();
[INFO] [stdout]    |             ^ help: convert the identifier to snake case (notice the capitalization): `s`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `DFS` should have a snake case name
[INFO] [stdout]    --> src/main.rs:123:8
[INFO] [stdout]     |
[INFO] [stdout] 123 |     fn DFS(
[INFO] [stdout]     |        ^^^ help: convert the identifier to snake case: `dfs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `S` should have a snake case name
[INFO] [stdout]    --> src/main.rs:133:17
[INFO] [stdout]     |
[INFO] [stdout] 133 |         let mut S = VecDeque::new();
[INFO] [stdout]     |                 ^ help: convert the identifier to snake case (notice the capitalization): `s`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `N` should have a snake case name
[INFO] [stdout]    --> src/main.rs:302:9
[INFO] [stdout]     |
[INFO] [stdout] 302 |     let N = grid.len() as i64;
[INFO] [stdout]     |         ^ help: convert the identifier to snake case: `n`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]    --> src/main.rs:342:32
[INFO] [stdout]     |
[INFO] [stdout] 342 |         let mut new_line = line.clone();
[INFO] [stdout]     |                                ^^^^^^^^ help: remove this redundant call
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type `str` does not implement `Clone`, so calling `clone` on `&str` copies the reference, which does not do anything and can be removed
[INFO] [stdout]     = note: `#[warn(noop_method_call)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `DFS` should have a snake case name
[INFO] [stdout]    --> src/main.rs:398:8
[INFO] [stdout]     |
[INFO] [stdout] 398 |     fn DFS<'a>(
[INFO] [stdout]     |        ^^^ help: convert the identifier to snake case: `dfs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: comparison is useless due to type limits
[INFO] [stdout]     --> src/main.rs:1427:16
[INFO] [stdout]      |
[INFO] [stdout] 1427 |             if x < 0 || x >= lines || y < 0 || y >= cols {
[INFO] [stdout]      |                ^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_comparisons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: comparison is useless due to type limits
[INFO] [stdout]     --> src/main.rs:1427:39
[INFO] [stdout]      |
[INFO] [stdout] 1427 |             if x < 0 || x >= lines || y < 0 || y >= cols {
[INFO] [stdout]      |                                       ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 69 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.50s
[INFO] running `Command { std: "docker" "inspect" "475938233d9e49fbbf4a689b81ca4dbb75dd57f7b0cee6f29949fcd4891f77bc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "475938233d9e49fbbf4a689b81ca4dbb75dd57f7b0cee6f29949fcd4891f77bc", kill_on_drop: false }`
[INFO] [stdout] 475938233d9e49fbbf4a689b81ca4dbb75dd57f7b0cee6f29949fcd4891f77bc