[INFO] cloning repository https://github.com/NeoScripter/AOC_2017_Rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/NeoScripter/AOC_2017_Rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNeoScripter%2FAOC_2017_Rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNeoScripter%2FAOC_2017_Rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b6e85157af2e43961d7b542be9379c6cb8f297c7
[INFO] checking NeoScripter/AOC_2017_Rust/b6e85157af2e43961d7b542be9379c6cb8f297c7 against master#ab869e094a907cc5d19b4080f22eccaf347f1f95 for pr-129604
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNeoScripter%2FAOC_2017_Rust" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/NeoScripter/AOC_2017_Rust on toolchain ab869e094a907cc5d19b4080f22eccaf347f1f95
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/NeoScripter/AOC_2017_Rust
[INFO] finished tweaking git repo https://github.com/NeoScripter/AOC_2017_Rust
[INFO] tweaked toml for git repo https://github.com/NeoScripter/AOC_2017_Rust written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/NeoScripter/AOC_2017_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" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded test-case-macros v3.2.1
[INFO] [stderr]   Downloaded snowflake v1.3.0
[INFO] [stderr]   Downloaded test-case-core v3.2.1
[INFO] [stderr]   Downloaded test-case v3.2.1
[INFO] [stderr]   Downloaded itertools v0.11.0
[INFO] [stderr]   Downloaded camino v1.1.6
[INFO] [stderr]   Downloaded sharded-slab v0.1.6
[INFO] [stderr]   Downloaded indexmap v2.0.2
[INFO] [stderr]   Downloaded backtrace v0.3.69
[INFO] [stderr]   Downloaded id_tree v1.8.0
[INFO] [stderr]   Downloaded hashbrown v0.14.1
[INFO] [stderr]   Downloaded proc-macro2 v1.0.67
[INFO] [stderr]   Downloaded miniz_oxide v0.7.1
[INFO] [stderr]   Downloaded syn v2.0.37
[INFO] [stderr]   Downloaded gimli v0.28.0
[INFO] [stderr]   Downloaded object v0.32.1
[INFO] [stderr]   Downloaded libc v0.2.148
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b44ce11c724c00c05d7ae32104c79938f3be707d6b5c3726fd9829505419ac35
[INFO] running `Command { std: "docker" "start" "-a" "b44ce11c724c00c05d7ae32104c79938f3be707d6b5c3726fd9829505419ac35", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b44ce11c724c00c05d7ae32104c79938f3be707d6b5c3726fd9829505419ac35", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b44ce11c724c00c05d7ae32104c79938f3be707d6b5c3726fd9829505419ac35", kill_on_drop: false }`
[INFO] [stdout] b44ce11c724c00c05d7ae32104c79938f3be707d6b5c3726fd9829505419ac35
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7291ea58f88761683b9ddc3e6d834b631dfe601c83c9355aa51bc9788e541350
[INFO] running `Command { std: "docker" "start" "-a" "7291ea58f88761683b9ddc3e6d834b631dfe601c83c9355aa51bc9788e541350", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.148
[INFO] [stderr]     Checking once_cell v1.18.0
[INFO] [stderr]     Checking memchr v2.6.4
[INFO] [stderr]     Checking pin-project-lite v0.2.13
[INFO] [stderr]    Compiling eyre v0.6.8
[INFO] [stderr]     Checking gimli v0.28.0
[INFO] [stderr]     Checking adler v1.0.2
[INFO] [stderr]     Checking owo-colors v3.5.0
[INFO] [stderr]     Checking indenter v0.3.3
[INFO] [stderr]    Compiling camino v1.1.6
[INFO] [stderr]     Checking rustc-demangle v0.1.23
[INFO] [stderr]     Checking hashbrown v0.14.1
[INFO] [stderr]     Checking equivalent v1.0.1
[INFO] [stderr]     Checking sharded-slab v0.1.6
[INFO] [stderr]    Compiling num-traits v0.2.17
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]     Checking minimal-lexical v0.2.1
[INFO] [stderr]     Checking either v1.9.0
[INFO] [stderr]     Checking snowflake v1.3.0
[INFO] [stderr]     Checking miniz_oxide v0.7.1
[INFO] [stderr]     Checking id_tree v1.8.0
[INFO] [stderr]     Checking tracing-core v0.1.31
[INFO] [stderr]     Checking thread_local v1.1.7
[INFO] [stderr]     Checking itertools v0.11.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.67
[INFO] [stderr]    Compiling unicode-ident v1.0.12
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]     Checking tracing v0.1.37
[INFO] [stderr]     Checking object v0.32.1
[INFO] [stderr]     Checking nom v7.1.3
[INFO] [stderr]     Checking indexmap v2.0.2
[INFO] [stderr]     Checking tracing-subscriber v0.3.17
[INFO] [stderr]    Compiling cc v1.0.83
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]    Compiling syn v2.0.37
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling backtrace v0.3.69
[INFO] [stderr]     Checking tracing-error v0.2.0
[INFO] [stderr]     Checking color-spantrace v0.2.0
[INFO] [stderr]     Checking addr2line v0.21.0
[INFO] [stderr]    Compiling test-case-core v3.2.1
[INFO] [stderr]     Checking color-eyre v0.6.2
[INFO] [stderr]     Checking aoc2017 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `input`
[INFO] [stdout]  --> bin/day18/main.rs:2:9
[INFO] [stdout]   |
[INFO] [stdout] 2 |     let input = include_str!("input18.txt");
[INFO] [stdout]   |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_input`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `part2` is never used
[INFO] [stdout]   --> bin/day15/main.rs:59:4
[INFO] [stdout]    |
[INFO] [stdout] 59 | fn part2(st: (u64, u64)) -> u64 {
[INFO] [stdout]    |    ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Spinlock` is never constructed
[INFO] [stdout]  --> bin/day17/main.rs:2:8
[INFO] [stdout]   |
[INFO] [stdout] 2 | struct Spinlock (Vec<u32>);
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new` and `process` are never used
[INFO] [stdout]  --> bin/day17/main.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | impl Spinlock {
[INFO] [stdout]   | ------------- associated items in this implementation
[INFO] [stdout] 5 |     fn new() -> Self {
[INFO] [stdout]   |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 8 |     fn process(&mut self, step: usize) {
[INFO] [stdout]   |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `part1` is never used
[INFO] [stdout]   --> bin/day17/main.rs:17:4
[INFO] [stdout]    |
[INFO] [stdout] 17 | fn part1() -> u32 {
[INFO] [stdout]    |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `print_tree` is never used
[INFO] [stdout]   --> bin/day7/main.rs:34:8
[INFO] [stdout]    |
[INFO] [stdout] 23 | impl Program {
[INFO] [stdout]    | ------------ method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 34 |     fn print_tree(&self, depth: usize) {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `itertools::Itertools`
[INFO] [stdout]  --> bin/day14/main.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use itertools::Itertools;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `find_regions` is never used
[INFO] [stdout]   --> bin/day14/main.rs:20:8
[INFO] [stdout]    |
[INFO] [stdout] 13 | impl<'a> Disk<'a> {
[INFO] [stdout]    | ----------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 20 |     fn find_regions(&self) -> u32 {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `part2` is never used
[INFO] [stdout]    --> bin/day14/main.rs:101:4
[INFO] [stdout]     |
[INFO] [stdout] 101 | fn part2(input: &str) -> u32 {
[INFO] [stdout]     |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `find_connections`, `connection_search`, `find_subgraphs`, and `find_group` are never used
[INFO] [stdout]   --> bin/day12/main.rs:16:8
[INFO] [stdout]    |
[INFO] [stdout] 6  | impl Graph {
[INFO] [stdout]    | ---------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 16 |     fn find_connections(&self, start: u32) -> usize {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 20 |     fn connection_search(&self, cache: &mut HashSet<u32>, current: u32) -> usize {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 31 |     fn find_subgraphs(&self) -> usize {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 41 |     fn find_group(&self, seen: &mut HashSet<u32>, node: u32) -> usize {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `down` and `pos` are never read
[INFO] [stdout]  --> bin/day13/main.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | struct Scanner {
[INFO] [stdout]   |        ------- fields in this struct
[INFO] [stdout] 5 |     rng: Vec<u8>,
[INFO] [stdout] 6 |     down: bool,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout] 7 |     pos: usize,
[INFO] [stdout]   |     ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Scanner` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `packet` and `svt` are never read
[INFO] [stdout]   --> bin/day13/main.rs:31:5
[INFO] [stdout]    |
[INFO] [stdout] 29 | struct Firewall {
[INFO] [stdout]    |        -------- fields in this struct
[INFO] [stdout] 30 |     layers: Vec<Scanner>,
[INFO] [stdout] 31 |     packet: usize,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 32 |     pcs: Vec<usize>,
[INFO] [stdout] 33 |     svt: usize,
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Firewall` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `move_scanners`, `move_packet`, and `round` are never used
[INFO] [stdout]   --> bin/day13/main.rs:56:8
[INFO] [stdout]    |
[INFO] [stdout] 47 | impl Firewall {
[INFO] [stdout]    | ------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 56 |     fn move_scanners(&mut self) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 70 |     fn move_packet(&mut self) {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 78 |     fn round(&mut self) {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `part1` is never used
[INFO] [stdout]    --> bin/day13/main.rs:116:4
[INFO] [stdout]     |
[INFO] [stdout] 116 | fn part1() -> usize {
[INFO] [stdout]     |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `part1` is never used
[INFO] [stdout]  --> bin/day10/main.rs:4:4
[INFO] [stdout]   |
[INFO] [stdout] 4 | fn part1(input: &str) -> u32 {
[INFO] [stdout]   |    ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling test-case-macros v3.2.1
[INFO] [stderr]     Checking test-case v3.2.1
[INFO] [stdout] warning: fields `down` and `pos` are never read
[INFO] [stdout]  --> bin/day13/main.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | struct Scanner {
[INFO] [stdout]   |        ------- fields in this struct
[INFO] [stdout] 5 |     rng: Vec<u8>,
[INFO] [stdout] 6 |     down: bool,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout] 7 |     pos: usize,
[INFO] [stdout]   |     ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Scanner` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `packet` and `svt` are never read
[INFO] [stdout]   --> bin/day13/main.rs:31:5
[INFO] [stdout]    |
[INFO] [stdout] 29 | struct Firewall {
[INFO] [stdout]    |        -------- fields in this struct
[INFO] [stdout] 30 |     layers: Vec<Scanner>,
[INFO] [stdout] 31 |     packet: usize,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 32 |     pcs: Vec<usize>,
[INFO] [stdout] 33 |     svt: usize,
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Firewall` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `move_scanners`, `move_packet`, and `round` are never used
[INFO] [stdout]   --> bin/day13/main.rs:56:8
[INFO] [stdout]    |
[INFO] [stdout] 47 | impl Firewall {
[INFO] [stdout]    | ------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 56 |     fn move_scanners(&mut self) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 70 |     fn move_packet(&mut self) {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 78 |     fn round(&mut self) {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `part1` is never used
[INFO] [stdout]    --> bin/day13/main.rs:116:4
[INFO] [stdout]     |
[INFO] [stdout] 116 | fn part1() -> usize {
[INFO] [stdout]     |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Spinlock` is never constructed
[INFO] [stdout]  --> bin/day17/main.rs:2:8
[INFO] [stdout]   |
[INFO] [stdout] 2 | struct Spinlock (Vec<u32>);
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `find_connections`, `connection_search`, `find_subgraphs`, and `find_group` are never used
[INFO] [stdout]   --> bin/day12/main.rs:16:8
[INFO] [stdout]    |
[INFO] [stdout] 6  | impl Graph {
[INFO] [stdout]    | ---------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 16 |     fn find_connections(&self, start: u32) -> usize {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 20 |     fn connection_search(&self, cache: &mut HashSet<u32>, current: u32) -> usize {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 31 |     fn find_subgraphs(&self) -> usize {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 41 |     fn find_group(&self, seen: &mut HashSet<u32>, node: u32) -> usize {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new` and `process` are never used
[INFO] [stdout]  --> bin/day17/main.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | impl Spinlock {
[INFO] [stdout]   | ------------- associated items in this implementation
[INFO] [stdout] 5 |     fn new() -> Self {
[INFO] [stdout]   |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 8 |     fn process(&mut self, step: usize) {
[INFO] [stdout]   |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `part1` is never used
[INFO] [stdout]   --> bin/day17/main.rs:17:4
[INFO] [stdout]    |
[INFO] [stdout] 17 | fn part1() -> u32 {
[INFO] [stdout]    |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `input`
[INFO] [stdout]  --> bin/day18/main.rs:2:9
[INFO] [stdout]   |
[INFO] [stdout] 2 |     let input = include_str!("input18.txt");
[INFO] [stdout]   |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_input`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `part1` is never used
[INFO] [stdout]  --> bin/day10/main.rs:4:4
[INFO] [stdout]   |
[INFO] [stdout] 4 | fn part1(input: &str) -> u32 {
[INFO] [stdout]   |    ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `itertools::Itertools`
[INFO] [stdout]  --> bin/day14/main.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use itertools::Itertools;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `part2` is never used
[INFO] [stdout]   --> bin/day15/main.rs:59:4
[INFO] [stdout]    |
[INFO] [stdout] 59 | fn part2(st: (u64, u64)) -> u64 {
[INFO] [stdout]    |    ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `find_regions` is never used
[INFO] [stdout]   --> bin/day14/main.rs:20:8
[INFO] [stdout]    |
[INFO] [stdout] 13 | impl<'a> Disk<'a> {
[INFO] [stdout]    | ----------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 20 |     fn find_regions(&self) -> u32 {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `part2` is never used
[INFO] [stdout]    --> bin/day14/main.rs:101:4
[INFO] [stdout]     |
[INFO] [stdout] 101 | fn part2(input: &str) -> u32 {
[INFO] [stdout]     |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `print_tree` is never used
[INFO] [stdout]   --> bin/day7/main.rs:34:8
[INFO] [stdout]    |
[INFO] [stdout] 23 | impl Program {
[INFO] [stdout]    | ------------ method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 34 |     fn print_tree(&self, depth: usize) {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 8.36s
[INFO] running `Command { std: "docker" "inspect" "7291ea58f88761683b9ddc3e6d834b631dfe601c83c9355aa51bc9788e541350", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7291ea58f88761683b9ddc3e6d834b631dfe601c83c9355aa51bc9788e541350", kill_on_drop: false }`
[INFO] [stdout] 7291ea58f88761683b9ddc3e6d834b631dfe601c83c9355aa51bc9788e541350