[INFO] cloning repository https://github.com/michalrzak/AoC_22_rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/michalrzak/AoC_22_rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmichalrzak%2FAoC_22_rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmichalrzak%2FAoC_22_rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 682ee629b397e5817a3f7ca42fe6cf7dc9facea3
[INFO] checking michalrzak/AoC_22_rust against master#4847d6a9d07d4be9ba3196f6ad444af2d7bdde72 for pr-134272
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmichalrzak%2FAoC_22_rust" "/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/michalrzak/AoC_22_rust on toolchain 4847d6a9d07d4be9ba3196f6ad444af2d7bdde72
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4847d6a9d07d4be9ba3196f6ad444af2d7bdde72" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/michalrzak/AoC_22_rust
[INFO] finished tweaking git repo https://github.com/michalrzak/AoC_22_rust
[INFO] tweaked toml for git repo https://github.com/michalrzak/AoC_22_rust written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/michalrzak/AoC_22_rust 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" "+4847d6a9d07d4be9ba3196f6ad444af2d7bdde72" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+4847d6a9d07d4be9ba3196f6ad444af2d7bdde72" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 58762af3e08a60a7e33d0665b378dcea23361f966ece733a094e1028cc02c1e7
[INFO] running `Command { std: "docker" "start" "-a" "58762af3e08a60a7e33d0665b378dcea23361f966ece733a094e1028cc02c1e7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "58762af3e08a60a7e33d0665b378dcea23361f966ece733a094e1028cc02c1e7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "58762af3e08a60a7e33d0665b378dcea23361f966ece733a094e1028cc02c1e7", kill_on_drop: false }`
[INFO] [stdout] 58762af3e08a60a7e33d0665b378dcea23361f966ece733a094e1028cc02c1e7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+4847d6a9d07d4be9ba3196f6ad444af2d7bdde72" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3e65eaccfa38c710ab919f1cc90dacbe86a5d7e5398233a1f5cecfb5a851d2dc
[INFO] running `Command { std: "docker" "start" "-a" "3e65eaccfa38c710ab919f1cc90dacbe86a5d7e5398233a1f5cecfb5a851d2dc", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling num-bigint v0.4.3
[INFO] [stderr]     Checking advent_of_code_22 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `crate::day_13::day_13_1::solve`
[INFO] [stdout]  --> src/main.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::day_13::day_13_1::solve;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `HashMap`
[INFO] [stdout]  --> src/day_03/day_3_2.rs:1:24
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::collections::{HashMap, HashSet};
[INFO] [stdout]   |                        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::borrow::Borrow`
[INFO] [stdout]  --> src/day_05/day_5_1.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::borrow::Borrow;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::borrow::Borrow`
[INFO] [stdout]  --> src/day_05/day_5_2.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::borrow::Borrow;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `BorrowMut` and `Borrow`
[INFO] [stdout]   --> src/day_07/day_7_1.rs:11:19
[INFO] [stdout]    |
[INFO] [stdout] 11 | use std::borrow::{Borrow, BorrowMut};
[INFO] [stdout]    |                   ^^^^^^  ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::rc::Rc`
[INFO] [stdout]   --> src/day_07/day_7_1.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 | use std::rc::Rc;
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `LinkedList`
[INFO] [stdout]  --> src/day_09/day_9_2.rs:1:33
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::collections::{HashSet, LinkedList};
[INFO] [stdout]   |                                 ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]  --> src/day_11/day_11_1.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::collections::HashMap;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]  --> src/day_11/day_11_2.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::collections::HashMap;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ToBigUint`
[INFO] [stdout]  --> src/day_11/day_11_2.rs:7:27
[INFO] [stdout]   |
[INFO] [stdout] 7 | use num_bigint::{BigUint, ToBigUint};
[INFO] [stdout]   |                           ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `One`
[INFO] [stdout]  --> src/day_11/day_11_2.rs:8:24
[INFO] [stdout]   |
[INFO] [stdout] 8 | use num_traits::{Zero, One};
[INFO] [stdout]   |                        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ops::Deref`
[INFO] [stdout]  --> src/day_13/day_13_1.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::ops::Deref;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ops::Deref`
[INFO] [stdout]  --> src/day_13/day_13_2.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::ops::Deref;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `HashSet`
[INFO] [stdout]  --> src/day_15/day_15_2.rs:1:33
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::collections::{HashMap, HashSet};
[INFO] [stdout]   |                                 ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::day_13::day_13_1::solve`
[INFO] [stdout]  --> src/main.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::day_13::day_13_1::solve;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `HashMap`
[INFO] [stdout]  --> src/day_03/day_3_2.rs:1:24
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::collections::{HashMap, HashSet};
[INFO] [stdout]   |                        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::borrow::Borrow`
[INFO] [stdout]  --> src/day_05/day_5_1.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::borrow::Borrow;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::borrow::Borrow`
[INFO] [stdout]  --> src/day_05/day_5_2.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::borrow::Borrow;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `BorrowMut` and `Borrow`
[INFO] [stdout]   --> src/day_07/day_7_1.rs:11:19
[INFO] [stdout]    |
[INFO] [stdout] 11 | use std::borrow::{Borrow, BorrowMut};
[INFO] [stdout]    |                   ^^^^^^  ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::rc::Rc`
[INFO] [stdout]   --> src/day_07/day_7_1.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 | use std::rc::Rc;
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `LinkedList`
[INFO] [stdout]  --> src/day_09/day_9_2.rs:1:33
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::collections::{HashSet, LinkedList};
[INFO] [stdout]   |                                 ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]  --> src/day_11/day_11_1.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::collections::HashMap;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]  --> src/day_11/day_11_2.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::collections::HashMap;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ToBigUint`
[INFO] [stdout]  --> src/day_11/day_11_2.rs:7:27
[INFO] [stdout]   |
[INFO] [stdout] 7 | use num_bigint::{BigUint, ToBigUint};
[INFO] [stdout]   |                           ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `One`
[INFO] [stdout]  --> src/day_11/day_11_2.rs:8:24
[INFO] [stdout]   |
[INFO] [stdout] 8 | use num_traits::{Zero, One};
[INFO] [stdout]   |                        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ops::Deref`
[INFO] [stdout]  --> src/day_13/day_13_1.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::ops::Deref;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ops::Deref`
[INFO] [stdout]  --> src/day_13/day_13_2.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::ops::Deref;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `HashSet`
[INFO] [stdout]  --> src/day_15/day_15_2.rs:1:33
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::collections::{HashMap, HashSet};
[INFO] [stdout]   |                                 ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/day_05/day_5_1.rs:39:13
[INFO] [stdout]    |
[INFO] [stdout] 39 |         for i in 0..move_count {
[INFO] [stdout]    |             ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ele`
[INFO] [stdout]   --> src/day_05/day_5_1.rs:16:59
[INFO] [stdout]    |
[INFO] [stdout] 16 |     let mut ship:Vec<Vec<char>> = (0..num_of_stacks).map(|ele| Vec::new()).collect::<Vec<Vec<char>>>();
[INFO] [stdout]    |                                                           ^^^ help: if this is intentional, prefix it with an underscore: `_ele`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/day_05/day_5_2.rs:40:13
[INFO] [stdout]    |
[INFO] [stdout] 40 |         for i in 0..move_count {
[INFO] [stdout]    |             ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ele`
[INFO] [stdout]   --> src/day_05/day_5_2.rs:16:59
[INFO] [stdout]    |
[INFO] [stdout] 16 |     let mut ship:Vec<Vec<char>> = (0..num_of_stacks).map(|ele| Vec::new()).collect::<Vec<Vec<char>>>();
[INFO] [stdout]    |                                                           ^^^ help: if this is intentional, prefix it with an underscore: `_ele`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `current_path`
[INFO] [stdout]   --> src/day_07/day_7_1.rs:27:13
[INFO] [stdout]    |
[INFO] [stdout] 27 |     let mut current_path:Vec<&mut Directory> = Vec::from([&mut root]);
[INFO] [stdout]    |             ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_current_path`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `file_size`
[INFO] [stdout]   --> src/day_07/day_7_1.rs:63:25
[INFO] [stdout]    |
[INFO] [stdout] 63 |                     let file_size: u32 = command_line[0].parse::<u32>().expect("file size converted successfully");
[INFO] [stdout]    |                         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_file_size`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/day_07/day_7_1.rs:27:9
[INFO] [stdout]    |
[INFO] [stdout] 27 |     let mut current_path:Vec<&mut Directory> = Vec::from([&mut root]);
[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: value assigned to `not_edge` is never read
[INFO] [stdout]   --> src/day_08/day_8_1.rs:18:13
[INFO] [stdout]    |
[INFO] [stdout] 18 |             not_edge = false;
[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 `not_edge` is never read
[INFO] [stdout]   --> src/day_08/day_8_2.rs:21:13
[INFO] [stdout]    |
[INFO] [stdout] 21 |             not_edge = false;
[INFO] [stdout]    |             ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/day_09/day_9_2.rs:37:9
[INFO] [stdout]    |
[INFO] [stdout] 37 |     for i in 0..10 {
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/day_05/day_5_1.rs:39:13
[INFO] [stdout]    |
[INFO] [stdout] 39 |         for i in 0..move_count {
[INFO] [stdout]    |             ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ele`
[INFO] [stdout]   --> src/day_05/day_5_1.rs:16:59
[INFO] [stdout]    |
[INFO] [stdout] 16 |     let mut ship:Vec<Vec<char>> = (0..num_of_stacks).map(|ele| Vec::new()).collect::<Vec<Vec<char>>>();
[INFO] [stdout]    |                                                           ^^^ help: if this is intentional, prefix it with an underscore: `_ele`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/day_05/day_5_2.rs:40:13
[INFO] [stdout]    |
[INFO] [stdout] 40 |         for i in 0..move_count {
[INFO] [stdout]    |             ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ele`
[INFO] [stdout]   --> src/day_05/day_5_2.rs:16:59
[INFO] [stdout]    |
[INFO] [stdout] 16 |     let mut ship:Vec<Vec<char>> = (0..num_of_stacks).map(|ele| Vec::new()).collect::<Vec<Vec<char>>>();
[INFO] [stdout]    |                                                           ^^^ help: if this is intentional, prefix it with an underscore: `_ele`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/day_10/day_10_2.rs:30:9
[INFO] [stdout]    |
[INFO] [stdout] 30 |     let mut res: i64 = 0;
[INFO] [stdout]    |         ----^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/day_11/day_11_1.rs:77:9
[INFO] [stdout]    |
[INFO] [stdout] 77 |     for i in 0..20 {
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `current_path`
[INFO] [stdout]   --> src/day_07/day_7_1.rs:27:13
[INFO] [stdout]    |
[INFO] [stdout] 27 |     let mut current_path:Vec<&mut Directory> = Vec::from([&mut root]);
[INFO] [stdout]    |             ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_current_path`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `file_size`
[INFO] [stdout]   --> src/day_07/day_7_1.rs:63:25
[INFO] [stdout]    |
[INFO] [stdout] 63 |                     let file_size: u32 = command_line[0].parse::<u32>().expect("file size converted successfully");
[INFO] [stdout]    |                         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_file_size`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `ret` is never read
[INFO] [stdout]   --> src/day_11/day_11_2.rs:23:17
[INFO] [stdout]    |
[INFO] [stdout] 23 |         let mut ret = BigUint::from(0u32);
[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/day_07/day_7_1.rs:27:9
[INFO] [stdout]    |
[INFO] [stdout] 27 |     let mut current_path:Vec<&mut Directory> = Vec::from([&mut root]);
[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: value assigned to `not_edge` is never read
[INFO] [stdout]   --> src/day_08/day_8_1.rs:18:13
[INFO] [stdout]    |
[INFO] [stdout] 18 |             not_edge = false;
[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 `not_edge` is never read
[INFO] [stdout]   --> src/day_08/day_8_2.rs:21:13
[INFO] [stdout]    |
[INFO] [stdout] 21 |             not_edge = false;
[INFO] [stdout]    |             ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/day_09/day_9_2.rs:37:9
[INFO] [stdout]    |
[INFO] [stdout] 37 |     for i in 0..10 {
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a_pos`
[INFO] [stdout]    --> src/day_12/day_12_2.rs:165:9
[INFO] [stdout]     |
[INFO] [stdout] 165 |     let a_pos: Vec<(usize, usize)> = find_a(&height_map);
[INFO] [stdout]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_a_pos`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `found`
[INFO] [stdout]    --> src/day_12/day_12_2.rs:167:13
[INFO] [stdout]     |
[INFO] [stdout] 167 |     let mut found = false;
[INFO] [stdout]     |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_found`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `shortest`
[INFO] [stdout]    --> src/day_12/day_12_2.rs:168:13
[INFO] [stdout]     |
[INFO] [stdout] 168 |     let mut shortest: u32 = 0;
[INFO] [stdout]     |             ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_shortest`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/day_10/day_10_2.rs:30:9
[INFO] [stdout]    |
[INFO] [stdout] 30 |     let mut res: i64 = 0;
[INFO] [stdout]    |         ----^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/day_11/day_11_1.rs:77:9
[INFO] [stdout]    |
[INFO] [stdout] 77 |     for i in 0..20 {
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/day_12/day_12_2.rs:167:9
[INFO] [stdout]     |
[INFO] [stdout] 167 |     let mut found = false;
[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/day_12/day_12_2.rs:168:9
[INFO] [stdout]     |
[INFO] [stdout] 168 |     let mut shortest: u32 = 0;
[INFO] [stdout]     |         ----^^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `skip_after_recursion`
[INFO] [stdout]   --> src/day_13/day_13_1.rs:82:13
[INFO] [stdout]    |
[INFO] [stdout] 82 |     let mut skip_after_recursion = false;
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_skip_after_recursion`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `skip_after_recursion_right`
[INFO] [stdout]   --> src/day_13/day_13_1.rs:83:13
[INFO] [stdout]    |
[INFO] [stdout] 83 |     let mut skip_after_recursion_right = false;
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_skip_after_recursion_right`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `ret` is never read
[INFO] [stdout]   --> src/day_11/day_11_2.rs:23:17
[INFO] [stdout]    |
[INFO] [stdout] 23 |         let mut ret = BigUint::from(0u32);
[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/day_13/day_13_1.rs:82:9
[INFO] [stdout]    |
[INFO] [stdout] 82 |     let mut skip_after_recursion = false;
[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/day_13/day_13_1.rs:83:9
[INFO] [stdout]    |
[INFO] [stdout] 83 |     let mut skip_after_recursion_right = false;
[INFO] [stdout]    |         ----^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `skip_after_recursion`
[INFO] [stdout]   --> src/day_13/day_13_2.rs:81:13
[INFO] [stdout]    |
[INFO] [stdout] 81 |     let mut skip_after_recursion = false;
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_skip_after_recursion`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `skip_after_recursion_right`
[INFO] [stdout]   --> src/day_13/day_13_2.rs:82:13
[INFO] [stdout]    |
[INFO] [stdout] 82 |     let mut skip_after_recursion_right = false;
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_skip_after_recursion_right`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/day_13/day_13_2.rs:81:9
[INFO] [stdout]    |
[INFO] [stdout] 81 |     let mut skip_after_recursion = false;
[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/day_13/day_13_2.rs:82:9
[INFO] [stdout]    |
[INFO] [stdout] 82 |     let mut skip_after_recursion_right = false;
[INFO] [stdout]    |         ----^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `res`
[INFO] [stdout]    --> src/day_13/day_13_2.rs:148:13
[INFO] [stdout]     |
[INFO] [stdout] 148 |     let mut res = 0;
[INFO] [stdout]     |             ^^^ help: if this is intentional, prefix it with an underscore: `_res`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/day_13/day_13_2.rs:148:9
[INFO] [stdout]     |
[INFO] [stdout] 148 |     let mut res = 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/day_13/day_13_2.rs:163:17
[INFO] [stdout]     |
[INFO] [stdout] 163 |             let mut ordered = is_right_order(packages[prev], packages[ele]).unwrap();
[INFO] [stdout]     |                 ----^^^^^^^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `sand_falling` is never read
[INFO] [stdout]   --> src/day_14/day_14_1.rs:75:17
[INFO] [stdout]    |
[INFO] [stdout] 75 |                 sand_falling = false;
[INFO] [stdout]    |                 ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `sand_falling` is never read
[INFO] [stdout]   --> src/day_14/day_14_1.rs:81:17
[INFO] [stdout]    |
[INFO] [stdout] 81 |                 sand_falling = false;
[INFO] [stdout]    |                 ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a_pos`
[INFO] [stdout]    --> src/day_12/day_12_2.rs:165:9
[INFO] [stdout]     |
[INFO] [stdout] 165 |     let a_pos: Vec<(usize, usize)> = find_a(&height_map);
[INFO] [stdout]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_a_pos`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `found`
[INFO] [stdout]    --> src/day_12/day_12_2.rs:167:13
[INFO] [stdout]     |
[INFO] [stdout] 167 |     let mut found = false;
[INFO] [stdout]     |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_found`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `shortest`
[INFO] [stdout]    --> src/day_12/day_12_2.rs:168:13
[INFO] [stdout]     |
[INFO] [stdout] 168 |     let mut shortest: u32 = 0;
[INFO] [stdout]     |             ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_shortest`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sand_overflow`
[INFO] [stdout]   --> src/day_14/day_14_2.rs:54:13
[INFO] [stdout]    |
[INFO] [stdout] 54 |     let mut sand_overflow = false;
[INFO] [stdout]    |             ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_sand_overflow`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `sand_falling` is never read
[INFO] [stdout]   --> src/day_14/day_14_2.rs:76:17
[INFO] [stdout]    |
[INFO] [stdout] 76 |                 sand_falling = false;
[INFO] [stdout]    |                 ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `sand_falling` is never read
[INFO] [stdout]   --> src/day_14/day_14_2.rs:82:17
[INFO] [stdout]    |
[INFO] [stdout] 82 |                 sand_falling = false;
[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/day_12/day_12_2.rs:167:9
[INFO] [stdout]     |
[INFO] [stdout] 167 |     let mut found = false;
[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/day_12/day_12_2.rs:168:9
[INFO] [stdout]     |
[INFO] [stdout] 168 |     let mut shortest: u32 = 0;
[INFO] [stdout]     |         ----^^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `skip_after_recursion`
[INFO] [stdout]   --> src/day_13/day_13_1.rs:82:13
[INFO] [stdout]    |
[INFO] [stdout] 82 |     let mut skip_after_recursion = false;
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_skip_after_recursion`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `skip_after_recursion_right`
[INFO] [stdout]   --> src/day_13/day_13_1.rs:83:13
[INFO] [stdout]    |
[INFO] [stdout] 83 |     let mut skip_after_recursion_right = false;
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_skip_after_recursion_right`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/day_14/day_14_2.rs:54:9
[INFO] [stdout]    |
[INFO] [stdout] 54 |     let mut sand_overflow = false;
[INFO] [stdout]    |         ----^^^^^^^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `x_num` is never read
[INFO] [stdout]   --> src/day_15/day_15_1.rs:29:17
[INFO] [stdout]    |
[INFO] [stdout] 29 |         let mut x_num = 1;
[INFO] [stdout]    |                 ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `x_num` is never read
[INFO] [stdout]   --> src/day_15/day_15_1.rs:52:9
[INFO] [stdout]    |
[INFO] [stdout] 52 |         x_num += x_num_dif;
[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/day_13/day_13_1.rs:82:9
[INFO] [stdout]    |
[INFO] [stdout] 82 |     let mut skip_after_recursion = false;
[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/day_15/day_15_1.rs:30:13
[INFO] [stdout]    |
[INFO] [stdout] 30 |         let mut x_num_dif = 2;
[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/day_13/day_13_1.rs:83:9
[INFO] [stdout]    |
[INFO] [stdout] 83 |     let mut skip_after_recursion_right = false;
[INFO] [stdout]    |         ----^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `decode` is never used
[INFO] [stdout]  --> src/day_02/day_2_2.rs:5:4
[INFO] [stdout]   |
[INFO] [stdout] 5 | fn decode(input: char) -> char {
[INFO] [stdout]   |    ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `file_list` and `directory_list` are never read
[INFO] [stdout]   --> src/day_07/day_7_1.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 17 | struct Directory {
[INFO] [stdout]    |        --------- fields in this struct
[INFO] [stdout] 18 |     file_list: Vec<(String, u32)>,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 19 |     directory_list: HashMap<String, Directory>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Directory` has a derived impl for the trait `Default`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `substring_ascii` is never used
[INFO] [stdout]  --> src/day_13/day_13_1.rs:4:4
[INFO] [stdout]   |
[INFO] [stdout] 4 | fn substring_ascii<'a>(input: &'a str, start: &str, end: &str) -> &'a str {
[INFO] [stdout]   |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `substring_ascii` is never used
[INFO] [stdout]  --> src/day_13/day_13_2.rs:4:4
[INFO] [stdout]   |
[INFO] [stdout] 4 | fn substring_ascii<'a>(input: &'a str, start: &str, end: &str) -> &'a str {
[INFO] [stdout]   |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `skip_after_recursion`
[INFO] [stdout]   --> src/day_13/day_13_2.rs:81:13
[INFO] [stdout]    |
[INFO] [stdout] 81 |     let mut skip_after_recursion = false;
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_skip_after_recursion`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `skip_after_recursion_right`
[INFO] [stdout]   --> src/day_13/day_13_2.rs:82:13
[INFO] [stdout]    |
[INFO] [stdout] 82 |     let mut skip_after_recursion_right = false;
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_skip_after_recursion_right`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/day_13/day_13_2.rs:81:9
[INFO] [stdout]    |
[INFO] [stdout] 81 |     let mut skip_after_recursion = false;
[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/day_13/day_13_2.rs:82:9
[INFO] [stdout]    |
[INFO] [stdout] 82 |     let mut skip_after_recursion_right = false;
[INFO] [stdout]    |         ----^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `res`
[INFO] [stdout]    --> src/day_13/day_13_2.rs:148:13
[INFO] [stdout]     |
[INFO] [stdout] 148 |     let mut res = 0;
[INFO] [stdout]     |             ^^^ help: if this is intentional, prefix it with an underscore: `_res`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/day_13/day_13_2.rs:148:9
[INFO] [stdout]     |
[INFO] [stdout] 148 |     let mut res = 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/day_13/day_13_2.rs:163:17
[INFO] [stdout]     |
[INFO] [stdout] 163 |             let mut ordered = is_right_order(packages[prev], packages[ele]).unwrap();
[INFO] [stdout]     |                 ----^^^^^^^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `sand_falling` is never read
[INFO] [stdout]   --> src/day_14/day_14_1.rs:75:17
[INFO] [stdout]    |
[INFO] [stdout] 75 |                 sand_falling = false;
[INFO] [stdout]    |                 ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `sand_falling` is never read
[INFO] [stdout]   --> src/day_14/day_14_1.rs:81:17
[INFO] [stdout]    |
[INFO] [stdout] 81 |                 sand_falling = false;
[INFO] [stdout]    |                 ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sand_overflow`
[INFO] [stdout]   --> src/day_14/day_14_2.rs:54:13
[INFO] [stdout]    |
[INFO] [stdout] 54 |     let mut sand_overflow = false;
[INFO] [stdout]    |             ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_sand_overflow`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `sand_falling` is never read
[INFO] [stdout]   --> src/day_14/day_14_2.rs:76:17
[INFO] [stdout]    |
[INFO] [stdout] 76 |                 sand_falling = false;
[INFO] [stdout]    |                 ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `sand_falling` is never read
[INFO] [stdout]   --> src/day_14/day_14_2.rs:82:17
[INFO] [stdout]    |
[INFO] [stdout] 82 |                 sand_falling = false;
[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/day_14/day_14_2.rs:54:9
[INFO] [stdout]    |
[INFO] [stdout] 54 |     let mut sand_overflow = false;
[INFO] [stdout]    |         ----^^^^^^^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `x_num` is never read
[INFO] [stdout]   --> src/day_15/day_15_1.rs:29:17
[INFO] [stdout]    |
[INFO] [stdout] 29 |         let mut x_num = 1;
[INFO] [stdout]    |                 ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `x_num` is never read
[INFO] [stdout]   --> src/day_15/day_15_1.rs:52:9
[INFO] [stdout]    |
[INFO] [stdout] 52 |         x_num += x_num_dif;
[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/day_15/day_15_1.rs:30:13
[INFO] [stdout]    |
[INFO] [stdout] 30 |         let mut x_num_dif = 2;
[INFO] [stdout]    |             ----^^^^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `decode` is never used
[INFO] [stdout]  --> src/day_02/day_2_2.rs:5:4
[INFO] [stdout]   |
[INFO] [stdout] 5 | fn decode(input: char) -> char {
[INFO] [stdout]   |    ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `file_list` and `directory_list` are never read
[INFO] [stdout]   --> src/day_07/day_7_1.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 17 | struct Directory {
[INFO] [stdout]    |        --------- fields in this struct
[INFO] [stdout] 18 |     file_list: Vec<(String, u32)>,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 19 |     directory_list: HashMap<String, Directory>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Directory` has a derived impl for the trait `Default`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `substring_ascii` is never used
[INFO] [stdout]  --> src/day_13/day_13_1.rs:4:4
[INFO] [stdout]   |
[INFO] [stdout] 4 | fn substring_ascii<'a>(input: &'a str, start: &str, end: &str) -> &'a str {
[INFO] [stdout]   |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `substring_ascii` is never used
[INFO] [stdout]  --> src/day_13/day_13_2.rs:4:4
[INFO] [stdout]   |
[INFO] [stdout] 4 | fn substring_ascii<'a>(input: &'a str, start: &str, end: &str) -> &'a str {
[INFO] [stdout]   |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.27s
[INFO] running `Command { std: "docker" "inspect" "3e65eaccfa38c710ab919f1cc90dacbe86a5d7e5398233a1f5cecfb5a851d2dc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3e65eaccfa38c710ab919f1cc90dacbe86a5d7e5398233a1f5cecfb5a851d2dc", kill_on_drop: false }`
[INFO] [stdout] 3e65eaccfa38c710ab919f1cc90dacbe86a5d7e5398233a1f5cecfb5a851d2dc