[INFO] cloning repository https://github.com/adamncasey/aoc-2022
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/adamncasey/aoc-2022" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fadamncasey%2Faoc-2022", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fadamncasey%2Faoc-2022'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] adf089158bf7778639bd812b972acc453fe6c4eb
[INFO] checking adamncasey/aoc-2022 against 1.95.0 for pr-155915
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fadamncasey%2Faoc-2022" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] removed /workspace/builds/worker-5-tc1/source/.cargo/config
[INFO] started tweaking git repo https://github.com/adamncasey/aoc-2022
[INFO] finished tweaking git repo https://github.com/adamncasey/aoc-2022
[INFO] tweaked toml for git repo https://github.com/adamncasey/aoc-2022 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/adamncasey/aoc-2022 on toolchain 1.95.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/adamncasey/aoc-2022 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" "+1.95.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded serde_derive v1.0.150
[INFO] [stderr]   Downloaded serde v1.0.150
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] db71ddcb72b1b82b0fa41e01974c5fba094c2740fb99ea823cca6b2f838354b5
[INFO] running `Command { std: "docker" "start" "-a" "db71ddcb72b1b82b0fa41e01974c5fba094c2740fb99ea823cca6b2f838354b5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "db71ddcb72b1b82b0fa41e01974c5fba094c2740fb99ea823cca6b2f838354b5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "db71ddcb72b1b82b0fa41e01974c5fba094c2740fb99ea823cca6b2f838354b5", kill_on_drop: false }`
[INFO] [stdout] db71ddcb72b1b82b0fa41e01974c5fba094c2740fb99ea823cca6b2f838354b5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 92903db9d2c44dcdcc76e7407a82e11e0c0f38a68c0a8a89f4dc9014216316f3
[INFO] running `Command { std: "docker" "start" "-a" "92903db9d2c44dcdcc76e7407a82e11e0c0f38a68c0a8a89f4dc9014216316f3", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.47
[INFO] [stderr]    Compiling unicode-ident v1.0.5
[INFO] [stderr]    Compiling syn v1.0.105
[INFO] [stderr]    Compiling serde_derive v1.0.150
[INFO] [stderr]    Compiling serde v1.0.150
[INFO] [stderr]    Compiling serde_json v1.0.89
[INFO] [stderr]     Checking ryu v1.0.11
[INFO] [stderr]     Checking itoa v1.0.4
[INFO] [stderr]     Checking pico-args v0.5.0
[INFO] [stderr]    Compiling quote v1.0.21
[INFO] [stderr]     Checking advent_of_code v0.8.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `nums`
[INFO] [stdout]  --> src/bin/20.rs:2:9
[INFO] [stdout]   |
[INFO] [stdout] 2 |     let nums: Vec<i32> = input.lines().map(|x| x.parse::<i32>().unwrap()).collect();
[INFO] [stdout]   |         ^^^^ help: if this is intentional, prefix it with an underscore: `_nums`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `input`
[INFO] [stdout]  --> src/bin/20.rs:9:17
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub fn part_two(input: &str) -> Option<u32> {
[INFO] [stdout]   |                 ^^^^^ help: if this is intentional, prefix it with an underscore: `_input`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `round`
[INFO] [stdout]   --> src/bin/11.rs:88:9
[INFO] [stdout]    |
[INFO] [stdout] 88 |     for round in 0..rounds {
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_round`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/bin/18.rs:75:13
[INFO] [stdout]    |
[INFO] [stdout] 75 |         let mut moves = [
[INFO] [stdout]    |             ----^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `row`
[INFO] [stdout]   --> src/bin/14.rs:80:9
[INFO] [stdout]    |
[INFO] [stdout] 80 |     for row in 0..=max_y {
[INFO] [stdout]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_row`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/bin/14.rs:36:17
[INFO] [stdout]    |
[INFO] [stdout] 36 |                 write!(f, "{sq}");
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 36 |                 let _ = write!(f, "{sq}");
[INFO] [stdout]    |                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/bin/14.rs:38:13
[INFO] [stdout]    |
[INFO] [stdout] 38 |             writeln!(f, "");
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 38 |             let _ = writeln!(f, "");
[INFO] [stdout]    |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `height`
[INFO] [stdout]    --> src/bin/12.rs:136:19
[INFO] [stdout]     |
[INFO] [stdout] 136 |         for (col, height) in heights.iter().enumerate() {
[INFO] [stdout]     |                   ^^^^^^ help: if this is intentional, prefix it with an underscore: `_height`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `right`
[INFO] [stdout]   --> src/bin/13.rs:28:33
[INFO] [stdout]    |
[INFO] [stdout] 28 |                 Packet::Integer(right) => self.ordered(&Packet::List(vec![other.clone()])),
[INFO] [stdout]    |                                 ^^^^^ help: if this is intentional, prefix it with an underscore: `_right`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `name`
[INFO] [stdout]   --> src/bin/07.rs:69:24
[INFO] [stdout]    |
[INFO] [stdout] 69 |                 .map(|(name, child)| {
[INFO] [stdout]    |                        ^^^^ help: if this is intentional, prefix it with an underscore: `_name`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/bin/18.rs:75:13
[INFO] [stdout]    |
[INFO] [stdout] 75 |         let mut moves = [
[INFO] [stdout]    |             ----^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `row`
[INFO] [stdout]   --> src/bin/14.rs:80:9
[INFO] [stdout]    |
[INFO] [stdout] 80 |     for row in 0..=max_y {
[INFO] [stdout]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_row`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/bin/14.rs:36:17
[INFO] [stdout]    |
[INFO] [stdout] 36 |                 write!(f, "{sq}");
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 36 |                 let _ = write!(f, "{sq}");
[INFO] [stdout]    |                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/bin/14.rs:38:13
[INFO] [stdout]    |
[INFO] [stdout] 38 |             writeln!(f, "");
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 38 |             let _ = writeln!(f, "");
[INFO] [stdout]    |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `input`
[INFO] [stdout]  --> src/bin/17.rs:1:17
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn part_one(input: &str) -> Option<u32> {
[INFO] [stdout]   |                 ^^^^^ help: if this is intentional, prefix it with an underscore: `_input`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `input`
[INFO] [stdout]  --> src/bin/17.rs:5:17
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub fn part_two(input: &str) -> Option<u32> {
[INFO] [stdout]   |                 ^^^^^ help: if this is intentional, prefix it with an underscore: `_input`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/bin/09.rs:92:17
[INFO] [stdout]    |
[INFO] [stdout] 92 |             for mut knot in rope[1..].iter_mut() {
[INFO] [stdout]    |                 ----^^^^
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::HashSet`
[INFO] [stdout]  --> src/bin/08.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::collections::HashSet;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `last_height` is assigned to, but never used
[INFO] [stdout]   --> src/bin/08.rs:48:9
[INFO] [stdout]    |
[INFO] [stdout] 48 |     let mut last_height = 0;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: consider using `_last_height` instead
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `last_height` is assigned to, but never used
[INFO] [stdout]   --> src/bin/08.rs:64:9
[INFO] [stdout]    |
[INFO] [stdout] 64 |     let mut last_height = 0;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: consider using `_last_height` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `last_height` is assigned to, but never used
[INFO] [stdout]   --> src/bin/08.rs:79:9
[INFO] [stdout]    |
[INFO] [stdout] 79 |     let mut last_height = 0;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: consider using `_last_height` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `last_height` is assigned to, but never used
[INFO] [stdout]   --> src/bin/08.rs:94:9
[INFO] [stdout]    |
[INFO] [stdout] 94 |     let mut last_height = 0;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: consider using `_last_height` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `last_height` is never read
[INFO] [stdout]   --> src/bin/08.rs:55:9
[INFO] [stdout]    |
[INFO] [stdout] 55 |         last_height = t;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `last_height` is never read
[INFO] [stdout]   --> src/bin/08.rs:70:9
[INFO] [stdout]    |
[INFO] [stdout] 70 |         last_height = t;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `last_height` is never read
[INFO] [stdout]   --> src/bin/08.rs:85:9
[INFO] [stdout]    |
[INFO] [stdout] 85 |         last_height = t;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `last_height` is never read
[INFO] [stdout]    --> src/bin/08.rs:100:9
[INFO] [stdout]     |
[INFO] [stdout] 100 |         last_height = t;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `t`
[INFO] [stdout]    --> src/bin/08.rs:138:27
[INFO] [stdout]     |
[INFO] [stdout] 138 |                 .map(|(y, t)| scenic_score(&trees, x, y))
[INFO] [stdout]     |                           ^ help: if this is intentional, prefix it with an underscore: `_t`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::HashSet`
[INFO] [stdout]  --> src/bin/08.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::collections::HashSet;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `round`
[INFO] [stdout]   --> src/bin/11.rs:88:9
[INFO] [stdout]    |
[INFO] [stdout] 88 |     for round in 0..rounds {
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_round`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::*`
[INFO] [stdout]   --> src/bin/01.rs:35:9
[INFO] [stdout]    |
[INFO] [stdout] 35 |     use super::*;
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/bin/09.rs:92:17
[INFO] [stdout]    |
[INFO] [stdout] 92 |             for mut knot in rope[1..].iter_mut() {
[INFO] [stdout]    |                 ----^^^^
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `last_height` is assigned to, but never used
[INFO] [stdout]   --> src/bin/08.rs:48:9
[INFO] [stdout]    |
[INFO] [stdout] 48 |     let mut last_height = 0;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: consider using `_last_height` instead
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `last_height` is assigned to, but never used
[INFO] [stdout]   --> src/bin/08.rs:64:9
[INFO] [stdout]    |
[INFO] [stdout] 64 |     let mut last_height = 0;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: consider using `_last_height` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `last_height` is assigned to, but never used
[INFO] [stdout]   --> src/bin/08.rs:79:9
[INFO] [stdout]    |
[INFO] [stdout] 79 |     let mut last_height = 0;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: consider using `_last_height` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `last_height` is assigned to, but never used
[INFO] [stdout]   --> src/bin/08.rs:94:9
[INFO] [stdout]    |
[INFO] [stdout] 94 |     let mut last_height = 0;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: consider using `_last_height` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `last_height` is never read
[INFO] [stdout]   --> src/bin/08.rs:55:9
[INFO] [stdout]    |
[INFO] [stdout] 55 |         last_height = t;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `last_height` is never read
[INFO] [stdout]   --> src/bin/08.rs:70:9
[INFO] [stdout]    |
[INFO] [stdout] 70 |         last_height = t;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `last_height` is never read
[INFO] [stdout]   --> src/bin/08.rs:85:9
[INFO] [stdout]    |
[INFO] [stdout] 85 |         last_height = t;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `last_height` is never read
[INFO] [stdout]    --> src/bin/08.rs:100:9
[INFO] [stdout]     |
[INFO] [stdout] 100 |         last_height = t;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `t`
[INFO] [stdout]    --> src/bin/08.rs:138:27
[INFO] [stdout]     |
[INFO] [stdout] 138 |                 .map(|(y, t)| scenic_score(&trees, x, y))
[INFO] [stdout]     |                           ^ help: if this is intentional, prefix it with an underscore: `_t`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `input`
[INFO] [stdout]  --> src/bin/17.rs:1:17
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn part_one(input: &str) -> Option<u32> {
[INFO] [stdout]   |                 ^^^^^ help: if this is intentional, prefix it with an underscore: `_input`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `input`
[INFO] [stdout]  --> src/bin/17.rs:5:17
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub fn part_two(input: &str) -> Option<u32> {
[INFO] [stdout]   |                 ^^^^^ help: if this is intentional, prefix it with an underscore: `_input`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `height`
[INFO] [stdout]    --> src/bin/12.rs:136:19
[INFO] [stdout]     |
[INFO] [stdout] 136 |         for (col, height) in heights.iter().enumerate() {
[INFO] [stdout]     |                   ^^^^^^ help: if this is intentional, prefix it with an underscore: `_height`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `nums`
[INFO] [stdout]  --> src/bin/20.rs:2:9
[INFO] [stdout]   |
[INFO] [stdout] 2 |     let nums: Vec<i32> = input.lines().map(|x| x.parse::<i32>().unwrap()).collect();
[INFO] [stdout]   |         ^^^^ help: if this is intentional, prefix it with an underscore: `_nums`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `input`
[INFO] [stdout]  --> src/bin/20.rs:9:17
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub fn part_two(input: &str) -> Option<u32> {
[INFO] [stdout]   |                 ^^^^^ help: if this is intentional, prefix it with an underscore: `_input`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `name`
[INFO] [stdout]   --> src/bin/07.rs:69:24
[INFO] [stdout]    |
[INFO] [stdout] 69 |                 .map(|(name, child)| {
[INFO] [stdout]    |                        ^^^^ help: if this is intentional, prefix it with an underscore: `_name`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `right`
[INFO] [stdout]   --> src/bin/13.rs:28:33
[INFO] [stdout]    |
[INFO] [stdout] 28 |                 Packet::Integer(right) => self.ordered(&Packet::List(vec![other.clone()])),
[INFO] [stdout]    |                                 ^^^^^ help: if this is intentional, prefix it with an underscore: `_right`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 10.73s
[INFO] running `Command { std: "docker" "inspect" "92903db9d2c44dcdcc76e7407a82e11e0c0f38a68c0a8a89f4dc9014216316f3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "92903db9d2c44dcdcc76e7407a82e11e0c0f38a68c0a8a89f4dc9014216316f3", kill_on_drop: false }`
[INFO] [stdout] 92903db9d2c44dcdcc76e7407a82e11e0c0f38a68c0a8a89f4dc9014216316f3
