[INFO] cloning repository https://github.com/error-27/advent-of-code-2023
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/error-27/advent-of-code-2023" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ferror-27%2Fadvent-of-code-2023", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ferror-27%2Fadvent-of-code-2023'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] fe587432276a9ba965f923a63aba70acdaa708d5
[INFO] checking error-27/advent-of-code-2023 against master#8f21a5c92ea55c348c275a1bc4fedbdf181e0d64 for pr-143011
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ferror-27%2Fadvent-of-code-2023" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/error-27/advent-of-code-2023
[INFO] finished tweaking git repo https://github.com/error-27/advent-of-code-2023
[INFO] tweaked toml for git repo https://github.com/error-27/advent-of-code-2023 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/error-27/advent-of-code-2023 on toolchain 8f21a5c92ea55c348c275a1bc4fedbdf181e0d64
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8f21a5c92ea55c348c275a1bc4fedbdf181e0d64" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/error-27/advent-of-code-2023 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8f21a5c92ea55c348c275a1bc4fedbdf181e0d64" "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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8f21a5c92ea55c348c275a1bc4fedbdf181e0d64" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c496d6b4457a70c3870d6725a504bdb41b1c314bdd76394f5b0d8108ef560b1c
[INFO] running `Command { std: "docker" "start" "-a" "c496d6b4457a70c3870d6725a504bdb41b1c314bdd76394f5b0d8108ef560b1c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c496d6b4457a70c3870d6725a504bdb41b1c314bdd76394f5b0d8108ef560b1c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c496d6b4457a70c3870d6725a504bdb41b1c314bdd76394f5b0d8108ef560b1c", kill_on_drop: false }`
[INFO] [stdout] c496d6b4457a70c3870d6725a504bdb41b1c314bdd76394f5b0d8108ef560b1c
[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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8f21a5c92ea55c348c275a1bc4fedbdf181e0d64" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5b2056f9dd115c0af19b0f0b6a25898d80cd22dd890b9043dc0e557cc04e21bc
[INFO] running `Command { std: "docker" "start" "-a" "5b2056f9dd115c0af19b0f0b6a25898d80cd22dd890b9043dc0e557cc04e21bc", kill_on_drop: false }`
[INFO] [stderr]     Checking memchr v2.6.4
[INFO] [stderr]     Checking regex-syntax v0.8.2
[INFO] [stderr]     Checking aho-corasick v1.1.2
[INFO] [stderr]     Checking regex-automata v0.4.3
[INFO] [stderr]     Checking regex v1.10.2
[INFO] [stderr]     Checking aoc-2023 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `BufReader`
[INFO] [stdout]  --> src/main.rs:1:34
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::io::{Result, ErrorKind, BufReader, prelude::*};
[INFO] [stdout]   |                                  ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `BufReader`
[INFO] [stdout]  --> src/main.rs:1:34
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::io::{Result, ErrorKind, BufReader, prelude::*};
[INFO] [stdout]   |                                  ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `pos`
[INFO] [stdout]   --> src/day2.rs:74:10
[INFO] [stdout]    |
[INFO] [stdout] 74 |     for (pos, line) in lines.enumerate() {
[INFO] [stdout]    |          ^^^ help: if this is intentional, prefix it with an underscore: `_pos`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `numbers`
[INFO] [stdout]   --> src/day3.rs:10:13
[INFO] [stdout]    |
[INFO] [stdout] 10 |     let mut numbers: Vec<Vec<Match>> = Vec::new();
[INFO] [stdout]    |             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_numbers`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/day3.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 10 |     let mut numbers: Vec<Vec<Match>> = Vec::new();
[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: unused variable: `input`
[INFO] [stdout]   --> src/day3.rs:87:15
[INFO] [stdout]    |
[INFO] [stdout] 87 | pub fn solve2(input: &String) -> isize {
[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/day3.rs:88:9
[INFO] [stdout]    |
[INFO] [stdout] 88 |     let mut solution: isize = 0;
[INFO] [stdout]    |         ----^^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `solution` is never read
[INFO] [stdout]   --> src/day4.rs:53:13
[INFO] [stdout]    |
[INFO] [stdout] 53 |     let mut solution = 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 `solution` is never read
[INFO] [stdout]  --> src/day5.rs:4:13
[INFO] [stdout]   |
[INFO] [stdout] 4 |     let mut solution: isize = 0;
[INFO] [stdout]   |             ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `input`
[INFO] [stdout]   --> src/day5.rs:60:15
[INFO] [stdout]    |
[INFO] [stdout] 60 | pub fn solve2(input: &String) -> isize {
[INFO] [stdout]    |               ^^^^^ help: if this is intentional, prefix it with an underscore: `_input`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `solution` is never read
[INFO] [stdout]  --> src/day6.rs:4:13
[INFO] [stdout]   |
[INFO] [stdout] 4 |     let mut solution = 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 `solution` is never read
[INFO] [stdout]   --> src/day6.rs:36:13
[INFO] [stdout]    |
[INFO] [stdout] 36 |     let mut solution = 0;
[INFO] [stdout]    |             ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cards`
[INFO] [stdout]  --> src/day7.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 3 |     let cards = ['2', '3', '4', '5', '6', '7', '8', '9', 'T', 'J', 'Q', 'K', 'A'];
[INFO] [stdout]   |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_cards`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ranks`
[INFO] [stdout]   --> src/day7.rs:16:13
[INFO] [stdout]    |
[INFO] [stdout] 16 |     let mut ranks: Vec<isize> = vec![];
[INFO] [stdout]    |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_ranks`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `pass`
[INFO] [stdout]   --> src/day7.rs:18:9
[INFO] [stdout]    |
[INFO] [stdout] 18 |     for pass in 0..hands.len()-1 {
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_pass`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]  --> src/day7.rs:2:9
[INFO] [stdout]   |
[INFO] [stdout] 2 |     let mut solution = 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/day7.rs:16:9
[INFO] [stdout]    |
[INFO] [stdout] 16 |     let mut ranks: Vec<isize> = vec![];
[INFO] [stdout]    |         ----^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `input`
[INFO] [stdout]   --> src/day7.rs:25:15
[INFO] [stdout]    |
[INFO] [stdout] 25 | pub fn solve2(input: &String) -> isize {
[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/day7.rs:26:9
[INFO] [stdout]    |
[INFO] [stdout] 26 |     let mut solution = 0;
[INFO] [stdout]    |         ----^^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `pos`
[INFO] [stdout]   --> src/day2.rs:74:10
[INFO] [stdout]    |
[INFO] [stdout] 74 |     for (pos, line) in lines.enumerate() {
[INFO] [stdout]    |          ^^^ help: if this is intentional, prefix it with an underscore: `_pos`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `numbers`
[INFO] [stdout]   --> src/day3.rs:10:13
[INFO] [stdout]    |
[INFO] [stdout] 10 |     let mut numbers: Vec<Vec<Match>> = Vec::new();
[INFO] [stdout]    |             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_numbers`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/day3.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 10 |     let mut numbers: Vec<Vec<Match>> = Vec::new();
[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: unused variable: `input`
[INFO] [stdout]   --> src/day3.rs:87:15
[INFO] [stdout]    |
[INFO] [stdout] 87 | pub fn solve2(input: &String) -> isize {
[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/day3.rs:88:9
[INFO] [stdout]    |
[INFO] [stdout] 88 |     let mut solution: isize = 0;
[INFO] [stdout]    |         ----^^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `weaker` is never used
[INFO] [stdout]   --> src/day7.rs:31:4
[INFO] [stdout]    |
[INFO] [stdout] 31 | fn weaker(a: &String, b: &String) -> bool {
[INFO] [stdout]    |    ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `solution` is never read
[INFO] [stdout]   --> src/day4.rs:53:13
[INFO] [stdout]    |
[INFO] [stdout] 53 |     let mut solution = 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 `solution` is never read
[INFO] [stdout]  --> src/day5.rs:4:13
[INFO] [stdout]   |
[INFO] [stdout] 4 |     let mut solution: isize = 0;
[INFO] [stdout]   |             ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `input`
[INFO] [stdout]   --> src/day5.rs:60:15
[INFO] [stdout]    |
[INFO] [stdout] 60 | pub fn solve2(input: &String) -> isize {
[INFO] [stdout]    |               ^^^^^ help: if this is intentional, prefix it with an underscore: `_input`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `solution` is never read
[INFO] [stdout]  --> src/day6.rs:4:13
[INFO] [stdout]   |
[INFO] [stdout] 4 |     let mut solution = 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 `solution` is never read
[INFO] [stdout]   --> src/day6.rs:36:13
[INFO] [stdout]    |
[INFO] [stdout] 36 |     let mut solution = 0;
[INFO] [stdout]    |             ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cards`
[INFO] [stdout]  --> src/day7.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 3 |     let cards = ['2', '3', '4', '5', '6', '7', '8', '9', 'T', 'J', 'Q', 'K', 'A'];
[INFO] [stdout]   |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_cards`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ranks`
[INFO] [stdout]   --> src/day7.rs:16:13
[INFO] [stdout]    |
[INFO] [stdout] 16 |     let mut ranks: Vec<isize> = vec![];
[INFO] [stdout]    |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_ranks`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `pass`
[INFO] [stdout]   --> src/day7.rs:18:9
[INFO] [stdout]    |
[INFO] [stdout] 18 |     for pass in 0..hands.len()-1 {
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_pass`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]  --> src/day7.rs:2:9
[INFO] [stdout]   |
[INFO] [stdout] 2 |     let mut solution = 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/day7.rs:16:9
[INFO] [stdout]    |
[INFO] [stdout] 16 |     let mut ranks: Vec<isize> = vec![];
[INFO] [stdout]    |         ----^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `input`
[INFO] [stdout]   --> src/day7.rs:25:15
[INFO] [stdout]    |
[INFO] [stdout] 25 | pub fn solve2(input: &String) -> isize {
[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/day7.rs:26:9
[INFO] [stdout]    |
[INFO] [stdout] 26 |     let mut solution = 0;
[INFO] [stdout]    |         ----^^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `weaker` is never used
[INFO] [stdout]   --> src/day7.rs:31:4
[INFO] [stdout]    |
[INFO] [stdout] 31 | fn weaker(a: &String, b: &String) -> bool {
[INFO] [stdout]    |    ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.23s
[INFO] running `Command { std: "docker" "inspect" "5b2056f9dd115c0af19b0f0b6a25898d80cd22dd890b9043dc0e557cc04e21bc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5b2056f9dd115c0af19b0f0b6a25898d80cd22dd890b9043dc0e557cc04e21bc", kill_on_drop: false }`
[INFO] [stdout] 5b2056f9dd115c0af19b0f0b6a25898d80cd22dd890b9043dc0e557cc04e21bc
