[INFO] cloning repository https://github.com/3digitdev/aoc2015
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/3digitdev/aoc2015" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F3digitdev%2Faoc2015", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F3digitdev%2Faoc2015'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e464f8942465c02783a737994e60e90a38283220
[INFO] checking 3digitdev/aoc2015 against try#8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8 for pr-82565
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F3digitdev%2Faoc2015" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/3digitdev/aoc2015 on toolchain 8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/3digitdev/aoc2015
[INFO] finished tweaking git repo https://github.com/3digitdev/aoc2015
[INFO] tweaked toml for git repo https://github.com/3digitdev/aoc2015 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/3digitdev/aoc2015 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded fancy-regex v0.4.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ed89d1105d5022ef6f6450339aaf01f0e17637489cf2ca2c49cbaccdc1414e6b
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "ed89d1105d5022ef6f6450339aaf01f0e17637489cf2ca2c49cbaccdc1414e6b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ed89d1105d5022ef6f6450339aaf01f0e17637489cf2ca2c49cbaccdc1414e6b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ed89d1105d5022ef6f6450339aaf01f0e17637489cf2ca2c49cbaccdc1414e6b", kill_on_drop: false }`
[INFO] [stdout] ed89d1105d5022ef6f6450339aaf01f0e17637489cf2ca2c49cbaccdc1414e6b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 964f877fb577e2e1852e663189755d4941fc019157209648ce2eb2fa4bb6f975
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "964f877fb577e2e1852e663189755d4941fc019157209648ce2eb2fa4bb6f975", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking regex-syntax v0.6.21
[INFO] [stderr]     Checking bit-vec v0.6.2
[INFO] [stderr]     Checking md5 v0.7.0
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]     Checking bit-set v0.5.2
[INFO] [stderr]     Checking regex v1.4.2
[INFO] [stderr]     Checking fancy-regex v0.4.1
[INFO] [stderr]     Checking aoc2015 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::fs`
[INFO] [stdout]  --> src/floor.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::fs;
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::str::Chars`
[INFO] [stdout]  --> src/instructions.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::str::Chars;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fs`
[INFO] [stdout]  --> src/delivery.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::fs;
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `cmp`, `fmt`
[INFO] [stdout]  --> src/main.rs:7:15
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::{fs, fmt, cmp};
[INFO] [stdout]   |               ^^^  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::borrow::Borrow`
[INFO] [stdout]   --> src/main.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 | use std::borrow::Borrow;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fs`
[INFO] [stdout]  --> src/floor.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::fs;
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::str::Chars`
[INFO] [stdout]  --> src/instructions.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::str::Chars;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fs`
[INFO] [stdout]  --> src/delivery.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::fs;
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `cmp`, `fmt`
[INFO] [stdout]  --> src/main.rs:7:15
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::{fs, fmt, cmp};
[INFO] [stdout]   |               ^^^  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::borrow::Borrow`
[INFO] [stdout]   --> src/main.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 | use std::borrow::Borrow;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/main.rs:128:9
[INFO] [stdout]     |
[INFO] [stdout] 128 |     for i in 0..zeroes {
[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: struct is never constructed: `Floor`
[INFO] [stdout]  --> src/floor.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct Floor {
[INFO] [stdout]   |            ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]  --> src/floor.rs:9:12
[INFO] [stdout]   |
[INFO] [stdout] 9 |     pub fn new() -> Floor { Floor { value: 0 }}
[INFO] [stdout]   |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `print`
[INFO] [stdout]   --> src/floor.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 11 |     pub fn print(&self) { println!("Floor {}", self.value); }
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `up`
[INFO] [stdout]   --> src/floor.rs:13:8
[INFO] [stdout]    |
[INFO] [stdout] 13 |     fn up(&mut self) { self.value += 1; }
[INFO] [stdout]    |        ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `down`
[INFO] [stdout]   --> src/floor.rs:15:8
[INFO] [stdout]    |
[INFO] [stdout] 15 |     fn down(&mut self) { self.value -= 1; }
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `parse_char`
[INFO] [stdout]   --> src/floor.rs:17:8
[INFO] [stdout]    |
[INFO] [stdout] 17 |     fn parse_char(&mut self, c: char) {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `parse_instructions`
[INFO] [stdout]   --> src/floor.rs:25:12
[INFO] [stdout]    |
[INFO] [stdout] 25 |     pub fn parse_instructions(&mut self, instructions: &mut Instructions) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/instructions.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 11 |     pub fn new() -> Instructions{ Instructions { position: 0, text: vec![] } }
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `parse_file`
[INFO] [stdout]   --> src/instructions.rs:13:12
[INFO] [stdout]    |
[INFO] [stdout] 13 |     pub fn parse_file(&mut self, path: &str) {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Present`
[INFO] [stdout]  --> src/present.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct Present {
[INFO] [stdout]   |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]  --> src/present.rs:8:12
[INFO] [stdout]   |
[INFO] [stdout] 8 |     pub fn new((l, w, h): (i32, i32, i32)) -> Present { Present { l, w, h} }
[INFO] [stdout]   |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `smallest_sides`
[INFO] [stdout]   --> src/present.rs:10:8
[INFO] [stdout]    |
[INFO] [stdout] 10 |     fn smallest_sides(&self) -> (i32, i32) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `surface_area`
[INFO] [stdout]   --> src/present.rs:16:12
[INFO] [stdout]    |
[INFO] [stdout] 16 |     pub fn surface_area(&self) -> i32  {
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `ribbon`
[INFO] [stdout]   --> src/present.rs:22:12
[INFO] [stdout]    |
[INFO] [stdout] 22 |     pub fn ribbon(&self) -> i32 {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Santa`
[INFO] [stdout]  --> src/delivery.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub struct Santa {
[INFO] [stdout]   |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]  --> src/delivery.rs:9:12
[INFO] [stdout]   |
[INFO] [stdout] 9 |     pub fn new() -> Santa {
[INFO] [stdout]   |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `add_if_new`
[INFO] [stdout]   --> src/delivery.rs:16:8
[INFO] [stdout]    |
[INFO] [stdout] 16 |     fn add_if_new(&mut self, coords: (i32, i32)) {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `parse_instruction`
[INFO] [stdout]   --> src/delivery.rs:22:12
[INFO] [stdout]    |
[INFO] [stdout] 22 |     pub fn parse_instruction(&mut self, instruction: char) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `parse_instructions`
[INFO] [stdout]   --> src/delivery.rs:35:12
[INFO] [stdout]    |
[INFO] [stdout] 35 |     pub fn parse_instructions(&mut self, instructions: Vec<char>) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `houses_found`
[INFO] [stdout]   --> src/delivery.rs:39:12
[INFO] [stdout]    |
[INFO] [stdout] 39 |     pub fn houses_found(&self) -> usize { self.delivered_to.len() }
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `unique_against`
[INFO] [stdout]   --> src/delivery.rs:41:12
[INFO] [stdout]    |
[INFO] [stdout] 41 |     pub fn unique_against(&mut self, other: &Santa) -> Vec<(i32, i32)> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `day_5`
[INFO] [stdout]   --> src/main.rs:86:4
[INFO] [stdout]    |
[INFO] [stdout] 86 | fn day_5() {
[INFO] [stdout]    |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `day_4`
[INFO] [stdout]    --> src/main.rs:119:4
[INFO] [stdout]     |
[INFO] [stdout] 119 | fn day_4() {
[INFO] [stdout]     |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `find_digest`
[INFO] [stdout]    --> src/main.rs:126:4
[INFO] [stdout]     |
[INFO] [stdout] 126 | fn find_digest(zeroes: usize) {
[INFO] [stdout]     |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `day_3`
[INFO] [stdout]    --> src/main.rs:143:4
[INFO] [stdout]     |
[INFO] [stdout] 143 | fn day_3() {
[INFO] [stdout]     |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `day_2`
[INFO] [stdout]    --> src/main.rs:166:4
[INFO] [stdout]     |
[INFO] [stdout] 166 | fn day_2() {
[INFO] [stdout]     |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `day_1`
[INFO] [stdout]    --> src/main.rs:191:4
[INFO] [stdout]     |
[INFO] [stdout] 191 | fn day_1() {
[INFO] [stdout]     |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 33 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/main.rs:128:9
[INFO] [stdout]     |
[INFO] [stdout] 128 |     for i in 0..zeroes {
[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: struct is never constructed: `Floor`
[INFO] [stdout]  --> src/floor.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct Floor {
[INFO] [stdout]   |            ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]  --> src/floor.rs:9:12
[INFO] [stdout]   |
[INFO] [stdout] 9 |     pub fn new() -> Floor { Floor { value: 0 }}
[INFO] [stdout]   |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 12.98s
[INFO] [stdout] warning: associated function is never used: `print`
[INFO] [stdout]   --> src/floor.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 11 |     pub fn print(&self) { println!("Floor {}", self.value); }
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `up`
[INFO] [stdout]   --> src/floor.rs:13:8
[INFO] [stdout]    |
[INFO] [stdout] 13 |     fn up(&mut self) { self.value += 1; }
[INFO] [stdout]    |        ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `down`
[INFO] [stdout]   --> src/floor.rs:15:8
[INFO] [stdout]    |
[INFO] [stdout] 15 |     fn down(&mut self) { self.value -= 1; }
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `parse_char`
[INFO] [stdout]   --> src/floor.rs:17:8
[INFO] [stdout]    |
[INFO] [stdout] 17 |     fn parse_char(&mut self, c: char) {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `parse_instructions`
[INFO] [stdout]   --> src/floor.rs:25:12
[INFO] [stdout]    |
[INFO] [stdout] 25 |     pub fn parse_instructions(&mut self, instructions: &mut Instructions) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/instructions.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 11 |     pub fn new() -> Instructions{ Instructions { position: 0, text: vec![] } }
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `parse_file`
[INFO] [stdout]   --> src/instructions.rs:13:12
[INFO] [stdout]    |
[INFO] [stdout] 13 |     pub fn parse_file(&mut self, path: &str) {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Present`
[INFO] [stdout]  --> src/present.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct Present {
[INFO] [stdout]   |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]  --> src/present.rs:8:12
[INFO] [stdout]   |
[INFO] [stdout] 8 |     pub fn new((l, w, h): (i32, i32, i32)) -> Present { Present { l, w, h} }
[INFO] [stdout]   |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `smallest_sides`
[INFO] [stdout]   --> src/present.rs:10:8
[INFO] [stdout]    |
[INFO] [stdout] 10 |     fn smallest_sides(&self) -> (i32, i32) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `surface_area`
[INFO] [stdout]   --> src/present.rs:16:12
[INFO] [stdout]    |
[INFO] [stdout] 16 |     pub fn surface_area(&self) -> i32  {
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `ribbon`
[INFO] [stdout]   --> src/present.rs:22:12
[INFO] [stdout]    |
[INFO] [stdout] 22 |     pub fn ribbon(&self) -> i32 {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Santa`
[INFO] [stdout]  --> src/delivery.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub struct Santa {
[INFO] [stdout]   |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]  --> src/delivery.rs:9:12
[INFO] [stdout]   |
[INFO] [stdout] 9 |     pub fn new() -> Santa {
[INFO] [stdout]   |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `add_if_new`
[INFO] [stdout]   --> src/delivery.rs:16:8
[INFO] [stdout]    |
[INFO] [stdout] 16 |     fn add_if_new(&mut self, coords: (i32, i32)) {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `parse_instruction`
[INFO] [stdout]   --> src/delivery.rs:22:12
[INFO] [stdout]    |
[INFO] [stdout] 22 |     pub fn parse_instruction(&mut self, instruction: char) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `parse_instructions`
[INFO] [stdout]   --> src/delivery.rs:35:12
[INFO] [stdout]    |
[INFO] [stdout] 35 |     pub fn parse_instructions(&mut self, instructions: Vec<char>) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `houses_found`
[INFO] [stdout]   --> src/delivery.rs:39:12
[INFO] [stdout]    |
[INFO] [stdout] 39 |     pub fn houses_found(&self) -> usize { self.delivered_to.len() }
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `unique_against`
[INFO] [stdout]   --> src/delivery.rs:41:12
[INFO] [stdout]    |
[INFO] [stdout] 41 |     pub fn unique_against(&mut self, other: &Santa) -> Vec<(i32, i32)> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `day_5`
[INFO] [stdout]   --> src/main.rs:86:4
[INFO] [stdout]    |
[INFO] [stdout] 86 | fn day_5() {
[INFO] [stdout]    |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `day_4`
[INFO] [stdout]    --> src/main.rs:119:4
[INFO] [stdout]     |
[INFO] [stdout] 119 | fn day_4() {
[INFO] [stdout]     |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `find_digest`
[INFO] [stdout]    --> src/main.rs:126:4
[INFO] [stdout]     |
[INFO] [stdout] 126 | fn find_digest(zeroes: usize) {
[INFO] [stdout]     |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `day_3`
[INFO] [stdout]    --> src/main.rs:143:4
[INFO] [stdout]     |
[INFO] [stdout] 143 | fn day_3() {
[INFO] [stdout]     |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `day_2`
[INFO] [stdout]    --> src/main.rs:166:4
[INFO] [stdout]     |
[INFO] [stdout] 166 | fn day_2() {
[INFO] [stdout]     |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `day_1`
[INFO] [stdout]    --> src/main.rs:191:4
[INFO] [stdout]     |
[INFO] [stdout] 191 | fn day_1() {
[INFO] [stdout]     |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 33 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "964f877fb577e2e1852e663189755d4941fc019157209648ce2eb2fa4bb6f975", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "964f877fb577e2e1852e663189755d4941fc019157209648ce2eb2fa4bb6f975", kill_on_drop: false }`
[INFO] [stdout] 964f877fb577e2e1852e663189755d4941fc019157209648ce2eb2fa4bb6f975