[INFO] cloning repository https://github.com/bromeara/advent_of_code_2025
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/bromeara/advent_of_code_2025" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbromeara%2Fadvent_of_code_2025", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbromeara%2Fadvent_of_code_2025'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b2e8c0af3c6c2d5d1a3aed470ad925b44141de1f
[INFO] checking bromeara/advent_of_code_2025 against 011c518242557d21690f7936b5812318dc2fec47 for pr-159877
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbromeara%2Fadvent_of_code_2025" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/bromeara/advent_of_code_2025
[INFO] finished tweaking git repo https://github.com/bromeara/advent_of_code_2025
[INFO] tweaked toml for git repo https://github.com/bromeara/advent_of_code_2025 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/bromeara/advent_of_code_2025 on toolchain 011c518242557d21690f7936b5812318dc2fec47
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+011c518242557d21690f7936b5812318dc2fec47" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/bromeara/advent_of_code_2025 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" "+011c518242557d21690f7936b5812318dc2fec47" "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-4-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:1fa6594d87c8fa7b311925a7a77a16f539833322d9dfba4ce891f211db2f90b1" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] c60c7f1985f6c0a6a46f3347be2d3a530f1e6a351cdc0ebc91cea1fb7659b70f
[INFO] running `Command { std: "docker" "start" "c60c7f1985f6c0a6a46f3347be2d3a530f1e6a351cdc0ebc91cea1fb7659b70f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c60c7f1985f6c0a6a46f3347be2d3a530f1e6a351cdc0ebc91cea1fb7659b70f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "c60c7f1985f6c0a6a46f3347be2d3a530f1e6a351cdc0ebc91cea1fb7659b70f" "/opt/rustwide/cargo-home/bin/cargo" "+011c518242557d21690f7936b5812318dc2fec47" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c60c7f1985f6c0a6a46f3347be2d3a530f1e6a351cdc0ebc91cea1fb7659b70f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "c60c7f1985f6c0a6a46f3347be2d3a530f1e6a351cdc0ebc91cea1fb7659b70f" "/opt/rustwide/cargo-home/bin/cargo" "+011c518242557d21690f7936b5812318dc2fec47" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]     Checking advent_of_code v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `low_id` and `high_id` are never read
[INFO] [stdout]   --> src/bin/day2.rs:71:5
[INFO] [stdout]    |
[INFO] [stdout] 70 | struct IDRange {
[INFO] [stdout]    |        ------- fields in this struct
[INFO] [stdout] 71 |     low_id: String,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 72 |     high_id: String,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `IDRange` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `is_valid` is never used
[INFO] [stdout]    --> src/bin/day2.rs:117:8
[INFO] [stdout]     |
[INFO] [stdout]  77 | impl IDRange {
[INFO] [stdout]     | ------------ method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 117 |     fn is_valid(&self, id: &str) -> bool {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::str::Chars`
[INFO] [stdout]  --> src/bin/day6.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::str::Chars;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/bin/day6.rs:38:9
[INFO] [stdout]    |
[INFO] [stdout] 38 |     for i in 0..lines[0].len() {
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/bin/day5.rs:45:9
[INFO] [stdout]    |
[INFO] [stdout] 45 |     let mut fresh_items: HashSet<u64> = HashSet::new();
[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: `stock`
[INFO] [stdout]   --> src/bin/day5.rs:43:22
[INFO] [stdout]    |
[INFO] [stdout] 43 |     let (mut ranges, stock) = process_input(file_path);
[INFO] [stdout]    |                      ^^^^^ help: if this is intentional, prefix it with an underscore: `_stock`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `fresh_items`
[INFO] [stdout]   --> src/bin/day5.rs:45:9
[INFO] [stdout]    |
[INFO] [stdout] 45 |     let mut fresh_items: HashSet<u64> = HashSet::new();
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_fresh_items`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `splitters` is assigned to, but never used
[INFO] [stdout]   --> src/bin/day7.rs:21:9
[INFO] [stdout]    |
[INFO] [stdout] 21 |     let mut splitters = 0;
[INFO] [stdout]    |         ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: consider using `_splitters` instead
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `splitters` is never read
[INFO] [stdout]   --> src/bin/day7.rs:27:21
[INFO] [stdout]    |
[INFO] [stdout] 27 |                     splitters += s
[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: function `process_input_part1` is never used
[INFO] [stdout]   --> src/bin/day6.rs:64:4
[INFO] [stdout]    |
[INFO] [stdout] 64 | fn process_input_part1(file_path: &str) -> Vec<Equation> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `process_line_to_u64` is never used
[INFO] [stdout]   --> src/bin/day6.rs:93:4
[INFO] [stdout]    |
[INFO] [stdout] 93 | fn process_line_to_u64(line: &str) -> Vec<u64> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `splitters` is assigned to, but never used
[INFO] [stdout]   --> src/bin/day7.rs:21:9
[INFO] [stdout]    |
[INFO] [stdout] 21 |     let mut splitters = 0;
[INFO] [stdout]    |         ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: consider using `_splitters` instead
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `splitters` is never read
[INFO] [stdout]   --> src/bin/day7.rs:27:21
[INFO] [stdout]    |
[INFO] [stdout] 27 |                     splitters += s
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::str::Chars`
[INFO] [stdout]  --> src/bin/day6.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::str::Chars;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `low_id` and `high_id` are never read
[INFO] [stdout]   --> src/bin/day2.rs:71:5
[INFO] [stdout]    |
[INFO] [stdout] 70 | struct IDRange {
[INFO] [stdout]    |        ------- fields in this struct
[INFO] [stdout] 71 |     low_id: String,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 72 |     high_id: String,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `IDRange` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `is_valid` is never used
[INFO] [stdout]    --> src/bin/day2.rs:117:8
[INFO] [stdout]     |
[INFO] [stdout]  77 | impl IDRange {
[INFO] [stdout]     | ------------ method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 117 |     fn is_valid(&self, id: &str) -> bool {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/bin/day6.rs:38:9
[INFO] [stdout]    |
[INFO] [stdout] 38 |     for i in 0..lines[0].len() {
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/bin/day5.rs:45:9
[INFO] [stdout]    |
[INFO] [stdout] 45 |     let mut fresh_items: HashSet<u64> = HashSet::new();
[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: `stock`
[INFO] [stdout]   --> src/bin/day5.rs:43:22
[INFO] [stdout]    |
[INFO] [stdout] 43 |     let (mut ranges, stock) = process_input(file_path);
[INFO] [stdout]    |                      ^^^^^ help: if this is intentional, prefix it with an underscore: `_stock`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `fresh_items`
[INFO] [stdout]   --> src/bin/day5.rs:45:9
[INFO] [stdout]    |
[INFO] [stdout] 45 |     let mut fresh_items: HashSet<u64> = HashSet::new();
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_fresh_items`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `process_input_part1` is never used
[INFO] [stdout]   --> src/bin/day6.rs:64:4
[INFO] [stdout]    |
[INFO] [stdout] 64 | fn process_input_part1(file_path: &str) -> Vec<Equation> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `process_line_to_u64` is never used
[INFO] [stdout]   --> src/bin/day6.rs:93:4
[INFO] [stdout]    |
[INFO] [stdout] 93 | fn process_line_to_u64(line: &str) -> Vec<u64> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.63s
[INFO] running `Command { std: "docker" "inspect" "c60c7f1985f6c0a6a46f3347be2d3a530f1e6a351cdc0ebc91cea1fb7659b70f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c60c7f1985f6c0a6a46f3347be2d3a530f1e6a351cdc0ebc91cea1fb7659b70f", kill_on_drop: false }`
[INFO] [stdout] c60c7f1985f6c0a6a46f3347be2d3a530f1e6a351cdc0ebc91cea1fb7659b70f
