[INFO] updating cached repository darrenburns/adventofcode2018
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/darrenburns/adventofcode2018
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/darrenburns/adventofcode2018" "work/ex/pr-59199/sources/master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7/gh/darrenburns/adventofcode2018"`
[INFO] [stderr] Cloning into 'work/ex/pr-59199/sources/master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7/gh/darrenburns/adventofcode2018'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/darrenburns/adventofcode2018" "work/ex/pr-59199/sources/try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b/gh/darrenburns/adventofcode2018"`
[INFO] [stderr] Cloning into 'work/ex/pr-59199/sources/try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b/gh/darrenburns/adventofcode2018'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 59ad8479a9e48a33003f4f2d57599470e2a2e95a
[INFO] sha for GitHub repo darrenburns/adventofcode2018: 59ad8479a9e48a33003f4f2d57599470e2a2e95a
[INFO] validating manifest of darrenburns/adventofcode2018 on toolchain master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of darrenburns/adventofcode2018 on toolchain try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing darrenburns/adventofcode2018
[INFO] finished frobbing darrenburns/adventofcode2018
[INFO] frobbed toml for darrenburns/adventofcode2018 written to work/ex/pr-59199/sources/master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7/gh/darrenburns/adventofcode2018/Cargo.toml
[INFO] started frobbing darrenburns/adventofcode2018
[INFO] finished frobbing darrenburns/adventofcode2018
[INFO] frobbed toml for darrenburns/adventofcode2018 written to work/ex/pr-59199/sources/try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b/gh/darrenburns/adventofcode2018/Cargo.toml
[INFO] crate darrenburns/adventofcode2018 already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking darrenburns/adventofcode2018 against try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b for pr-59199
[INFO] running `"docker" "create" "-v" "/mnt/crater-raid/crater/work/local/target-dirs/pr-59199/worker-3/try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b:/opt/crater/target:rw,Z" "-v" "/mnt/crater-raid/crater/work/ex/pr-59199/sources/try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b/gh/darrenburns/adventofcode2018:/opt/crater/workdir:ro,Z" "-v" "/mnt/crater-raid/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/crater-raid/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 4326396d2d76e6a7937df248abeac455c4b60e7b51b2d0c77bc4b4e47c61c1b8
[INFO] running `"docker" "start" "-a" "4326396d2d76e6a7937df248abeac455c4b60e7b51b2d0c77bc4b4e47c61c1b8"`
[INFO] [stderr]     Checking memchr v2.1.2
[INFO] [stderr]     Checking aho-corasick v0.6.9
[INFO] [stderr]     Checking regex v0.2.11
[INFO] [stderr]     Checking scan_fmt v0.1.3
[INFO] [stderr]     Checking adventofcode2018 v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `core::borrow::Borrow`
[INFO] [stderr]  --> src/six.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use core::borrow::Borrow;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `core::borrow::BorrowMut`
[INFO] [stderr]  --> src/six.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use core::borrow::BorrowMut;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::cmp::Ordering`
[INFO] [stderr]  --> src/seven.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::cmp::Ordering;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::collections::BinaryHeap`
[INFO] [stderr]  --> src/seven.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::collections::BinaryHeap;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::collections::HashMap`
[INFO] [stderr]  --> src/ten.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::collections::HashMap;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `for` head expression
[INFO] [stderr]   --> src/eleven.rs:34:31
[INFO] [stderr]    |
[INFO] [stderr] 34 |     for search_square_size in (0..GRID_SQUARE_SIZE) {
[INFO] [stderr]    |                               ^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_parens)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `core::borrow::Borrow`
[INFO] [stderr]  --> src/six.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use core::borrow::Borrow;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `core::borrow::BorrowMut`
[INFO] [stderr]  --> src/six.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use core::borrow::BorrowMut;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::cmp::Ordering`
[INFO] [stderr]  --> src/seven.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::cmp::Ordering;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::collections::BinaryHeap`
[INFO] [stderr]  --> src/seven.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::collections::BinaryHeap;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::collections::HashMap`
[INFO] [stderr]  --> src/ten.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::collections::HashMap;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `for` head expression
[INFO] [stderr]   --> src/eleven.rs:34:31
[INFO] [stderr]    |
[INFO] [stderr] 34 |     for search_square_size in (0..GRID_SQUARE_SIZE) {
[INFO] [stderr]    |                               ^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_parens)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable pattern
[INFO] [stderr]   --> src/four.rs:43:13
[INFO] [stderr]    |
[INFO] [stderr] 43 |             _ => ()
[INFO] [stderr]    |             ^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unreachable_patterns)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `gid`
[INFO] [stderr]   --> src/four.rs:60:10
[INFO] [stderr]    |
[INFO] [stderr] 60 |     let (gid, _, most_popular_minute, _) = sleepiest_guard.unwrap();
[INFO] [stderr]    |          ^^^ help: consider prefixing with an underscore: `_gid`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `most_popular_minute`
[INFO] [stderr]   --> src/four.rs:60:18
[INFO] [stderr]    |
[INFO] [stderr] 60 |     let (gid, _, most_popular_minute, _) = sleepiest_guard.unwrap();
[INFO] [stderr]    |                  ^^^^^^^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_most_popular_minute`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `point_id`
[INFO] [stderr]   --> src/six.rs:89:10
[INFO] [stderr]    |
[INFO] [stderr] 89 |     let (point_id, &area_of_territory) = grid.iter()
[INFO] [stderr]    |          ^^^^^^^^ help: consider prefixing with an underscore: `_point_id`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `cell`
[INFO] [stderr]    --> src/six.rs:132:33
[INFO] [stderr]     |
[INFO] [stderr] 132 |                 .map(|(col_idx, cell)| {
[INFO] [stderr]     |                                 ^^^^ help: consider prefixing with an underscore: `_cell`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `cell`
[INFO] [stderr]    --> src/six.rs:229:41
[INFO] [stderr]     |
[INFO] [stderr] 229 |                 .filter(move |(col_idx, cell)| {
[INFO] [stderr]     |                                         ^^^^ help: consider prefixing with an underscore: `_cell`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `col_idx`
[INFO] [stderr]    --> src/six.rs:234:27
[INFO] [stderr]     |
[INFO] [stderr] 234 |                 .filter(|(col_idx, cell)| {
[INFO] [stderr]     |                           ^^^^^^^ help: consider prefixing with an underscore: `_col_idx`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `col_idx`
[INFO] [stderr]    --> src/six.rs:241:24
[INFO] [stderr]     |
[INFO] [stderr] 241 |                 .map(|(col_idx, cell)| {
[INFO] [stderr]     |                        ^^^^^^^ help: consider prefixing with an underscore: `_col_idx`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `pot_num`
[INFO] [stderr]   --> src/twelve.rs:49:20
[INFO] [stderr]    |
[INFO] [stderr] 49 |         .filter(|&(pot_num, ch)| ch == '#')
[INFO] [stderr]    |                    ^^^^^^^ help: consider prefixing with an underscore: `_pot_num`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/three.rs:72:9
[INFO] [stderr]    |
[INFO] [stderr] 72 |     let mut split_line = line.split_whitespace();
[INFO] [stderr]    |         ----^^^^^^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable pattern
[INFO] [stderr]   --> src/four.rs:43:13
[INFO] [stderr]    |
[INFO] [stderr] 43 |             _ => ()
[INFO] [stderr]    |             ^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unreachable_patterns)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `gid`
[INFO] [stderr]   --> src/four.rs:60:10
[INFO] [stderr]    |
[INFO] [stderr] 60 |     let (gid, _, most_popular_minute, _) = sleepiest_guard.unwrap();
[INFO] [stderr]    |          ^^^ help: consider prefixing with an underscore: `_gid`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `most_popular_minute`
[INFO] [stderr]   --> src/four.rs:60:18
[INFO] [stderr]    |
[INFO] [stderr] 60 |     let (gid, _, most_popular_minute, _) = sleepiest_guard.unwrap();
[INFO] [stderr]    |                  ^^^^^^^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_most_popular_minute`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `point_id`
[INFO] [stderr]   --> src/six.rs:89:10
[INFO] [stderr]    |
[INFO] [stderr] 89 |     let (point_id, &area_of_territory) = grid.iter()
[INFO] [stderr]    |          ^^^^^^^^ help: consider prefixing with an underscore: `_point_id`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `cell`
[INFO] [stderr]    --> src/six.rs:132:33
[INFO] [stderr]     |
[INFO] [stderr] 132 |                 .map(|(col_idx, cell)| {
[INFO] [stderr]     |                                 ^^^^ help: consider prefixing with an underscore: `_cell`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `cell`
[INFO] [stderr]    --> src/six.rs:229:41
[INFO] [stderr]     |
[INFO] [stderr] 229 |                 .filter(move |(col_idx, cell)| {
[INFO] [stderr]     |                                         ^^^^ help: consider prefixing with an underscore: `_cell`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `col_idx`
[INFO] [stderr]    --> src/six.rs:234:27
[INFO] [stderr]     |
[INFO] [stderr] 234 |                 .filter(|(col_idx, cell)| {
[INFO] [stderr]     |                           ^^^^^^^ help: consider prefixing with an underscore: `_col_idx`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `col_idx`
[INFO] [stderr]    --> src/six.rs:241:24
[INFO] [stderr]     |
[INFO] [stderr] 241 |                 .map(|(col_idx, cell)| {
[INFO] [stderr]     |                        ^^^^^^^ help: consider prefixing with an underscore: `_col_idx`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `pot_num`
[INFO] [stderr]   --> src/twelve.rs:49:20
[INFO] [stderr]    |
[INFO] [stderr] 49 |         .filter(|&(pot_num, ch)| ch == '#')
[INFO] [stderr]    |                    ^^^^^^^ help: consider prefixing with an underscore: `_pot_num`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/three.rs:72:9
[INFO] [stderr]    |
[INFO] [stderr] 72 |     let mut split_line = line.split_whitespace();
[INFO] [stderr]    |         ----^^^^^^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/six.rs:188:17
[INFO] [stderr]     |
[INFO] [stderr] 188 |             let mut distances = points.iter()
[INFO] [stderr]     |                 ----^^^^^^^^^
[INFO] [stderr]     |                 |
[INFO] [stderr]     |                 help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/six.rs:188:17
[INFO] [stderr]     |
[INFO] [stderr] 188 |             let mut distances = points.iter()
[INFO] [stderr]     |                 ----^^^^^^^^^
[INFO] [stderr]     |                 |
[INFO] [stderr]     |                 help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/ten.rs:41:9
[INFO] [stderr]    |
[INFO] [stderr] 41 |     let mut stars: Vec<Star> = BufReader::new(File::open(PATH_TO_INPUT).unwrap()).lines()
[INFO] [stderr]    |         ----^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/twelve.rs:13:9
[INFO] [stderr]    |
[INFO] [stderr] 13 |     let mut notes_map = lines.fold(HashMap::new(), |mut map, line| {
[INFO] [stderr]    |         ----^^^^^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `calculate_frequency`
[INFO] [stderr]  --> src/one.rs:7:1
[INFO] [stderr]   |
[INFO] [stderr] 7 | pub fn calculate_frequency() -> Result<i32> {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `first_repeated_frequency`
[INFO] [stderr]   --> src/one.rs:14:1
[INFO] [stderr]    |
[INFO] [stderr] 14 | pub fn first_repeated_frequency() -> i32 {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `RepeatCounts`
[INFO] [stderr]  --> src/two.rs:9:1
[INFO] [stderr]   |
[INFO] [stderr] 9 | struct RepeatCounts {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `calculate_checksum`
[INFO] [stderr]   --> src/two.rs:15:1
[INFO] [stderr]    |
[INFO] [stderr] 15 | pub fn calculate_checksum() -> i32 {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `find_common_letters`
[INFO] [stderr]   --> src/two.rs:53:1
[INFO] [stderr]    |
[INFO] [stderr] 53 | pub fn find_common_letters() -> String {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `has_single_char_difference`
[INFO] [stderr]   --> src/two.rs:73:1
[INFO] [stderr]    |
[INFO] [stderr] 73 | fn has_single_char_difference(left: &str, right: &str) -> bool {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `get_common_chars`
[INFO] [stderr]   --> src/two.rs:92:1
[INFO] [stderr]    |
[INFO] [stderr] 92 | fn get_common_chars(left: &str, right: &str) -> String {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: type alias is never used: `Tiles`
[INFO] [stderr]  --> src/three.rs:5:1
[INFO] [stderr]   |
[INFO] [stderr] 5 | type Tiles = Vec<Vec<i32>>;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Location`
[INFO] [stderr]  --> src/three.rs:8:1
[INFO] [stderr]   |
[INFO] [stderr] 8 | struct Location {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Dimension`
[INFO] [stderr]   --> src/three.rs:14:1
[INFO] [stderr]    |
[INFO] [stderr] 14 | struct Dimension {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Claim`
[INFO] [stderr]   --> src/three.rs:20:1
[INFO] [stderr]    |
[INFO] [stderr] 20 | struct Claim {
[INFO] [stderr]    | ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `find_num_square_inches_overlapping`
[INFO] [stderr]   --> src/three.rs:26:1
[INFO] [stderr]    |
[INFO] [stderr] 26 | pub fn find_num_square_inches_overlapping() -> usize {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `deserialise_claim`
[INFO] [stderr]   --> src/three.rs:71:1
[INFO] [stderr]    |
[INFO] [stderr] 71 | fn deserialise_claim(line: &str) -> Claim {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `add_layer_to_tiles`
[INFO] [stderr]   --> src/three.rs:91:1
[INFO] [stderr]    |
[INFO] [stderr] 91 | fn add_layer_to_tiles(tiles: &mut Tiles, claim: &Claim) {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `count_overlaps`
[INFO] [stderr]    --> src/three.rs:105:1
[INFO] [stderr]     |
[INFO] [stderr] 105 | fn count_overlaps(tiles: &Tiles) -> usize {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `END_OF_TIMESTAMP_INDEX`
[INFO] [stderr]  --> src/four.rs:7:1
[INFO] [stderr]   |
[INFO] [stderr] 7 | const END_OF_TIMESTAMP_INDEX: usize = 19;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `checksum`
[INFO] [stderr]   --> src/four.rs:11:1
[INFO] [stderr]    |
[INFO] [stderr] 11 | pub fn checksum() -> i32 {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `POLYMER_FILE`
[INFO] [stderr]  --> src/five.rs:5:1
[INFO] [stderr]   |
[INFO] [stderr] 5 | const POLYMER_FILE: &'static str = "src/files/five/polymer.txt";
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `UNITS`
[INFO] [stderr]  --> src/five.rs:6:1
[INFO] [stderr]   |
[INFO] [stderr] 6 | const UNITS: &'static str = "abcdefghijklmnopqrstuvwxyz";
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `length_of_final_string`
[INFO] [stderr]  --> src/five.rs:9:1
[INFO] [stderr]   |
[INFO] [stderr] 9 | pub fn length_of_final_string() -> usize {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `react`
[INFO] [stderr]   --> src/five.rs:23:1
[INFO] [stderr]    |
[INFO] [stderr] 23 | fn react(polymer: String) -> String {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `react_filtered`
[INFO] [stderr]   --> src/five.rs:28:1
[INFO] [stderr]    |
[INFO] [stderr] 28 | fn react_filtered(polymer: &String, skip: char) -> String {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `polar_opposites`
[INFO] [stderr]   --> src/five.rs:34:1
[INFO] [stderr]    |
[INFO] [stderr] 34 | fn polar_opposites(a: char, b: char) -> bool {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `react_with_unit`
[INFO] [stderr]   --> src/five.rs:38:1
[INFO] [stderr]    |
[INFO] [stderr] 38 | fn react_with_unit(polymer: &mut String, unit: char) -> String {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `COORDS_FILE`
[INFO] [stderr]   --> src/six.rs:13:1
[INFO] [stderr]    |
[INFO] [stderr] 13 | const COORDS_FILE: &'static str = "src/files/six/coords.txt";
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `MANHATTAN_LIMIT`
[INFO] [stderr]   --> src/six.rs:14:1
[INFO] [stderr]    |
[INFO] [stderr] 14 | const MANHATTAN_LIMIT: i32 = 10000;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: type alias is never used: `Grid`
[INFO] [stderr]   --> src/six.rs:16:1
[INFO] [stderr]    |
[INFO] [stderr] 16 | type Grid = Vec<Vec<GridCell>>;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Border`
[INFO] [stderr]   --> src/six.rs:21:5
[INFO] [stderr]    |
[INFO] [stderr] 21 |     Border,
[INFO] [stderr]    |     ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `TerritoryOfPoint`
[INFO] [stderr]   --> src/six.rs:25:5
[INFO] [stderr]    |
[INFO] [stderr] 25 |     TerritoryOfPoint { point_id: String },
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Empty`
[INFO] [stderr]   --> src/six.rs:27:5
[INFO] [stderr]    |
[INFO] [stderr] 27 |     Empty,
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `in_territory_of`
[INFO] [stderr]   --> src/six.rs:34:5
[INFO] [stderr]    |
[INFO] [stderr] 34 |     fn in_territory_of(point_id: String) -> Self {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `id`
[INFO] [stderr]   --> src/six.rs:37:5
[INFO] [stderr]    |
[INFO] [stderr] 37 |     fn id(&self) -> Option<String> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `get_territory_id`
[INFO] [stderr]   --> src/six.rs:43:5
[INFO] [stderr]    |
[INFO] [stderr] 43 |     fn get_territory_id(&self) -> Option<String> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `row`
[INFO] [stderr]   --> src/six.rs:50:5
[INFO] [stderr]    |
[INFO] [stderr] 50 |     fn row(&self) -> Option<usize> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `col`
[INFO] [stderr]   --> src/six.rs:56:5
[INFO] [stderr]    |
[INFO] [stderr] 56 |     fn col(&self) -> Option<usize> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `get_largest_area`
[INFO] [stderr]   --> src/six.rs:84:1
[INFO] [stderr]    |
[INFO] [stderr] 84 | pub fn get_largest_area() -> i32 {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `find_region`
[INFO] [stderr]    --> src/six.rs:119:1
[INFO] [stderr]     |
[INFO] [stderr] 119 | pub fn find_region() -> i32 {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `build_grid`
[INFO] [stderr]    --> src/six.rs:146:1
[INFO] [stderr]     |
[INFO] [stderr] 146 | fn build_grid(points: &Vec<GridCell>) -> Grid {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `load_points_from_coords_file`
[INFO] [stderr]    --> src/six.rs:163:1
[INFO] [stderr]     |
[INFO] [stderr] 163 | fn load_points_from_coords_file() -> Vec<GridCell> {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `fill_grid_with`
[INFO] [stderr]    --> src/six.rs:171:1
[INFO] [stderr]     |
[INFO] [stderr] 171 | fn fill_grid_with(points: &Vec<GridCell>, height: usize, width: usize) -> Grid {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `populate_closest_points`
[INFO] [stderr]    --> src/six.rs:183:1
[INFO] [stderr]     |
[INFO] [stderr] 183 | fn populate_closest_points(points: &Vec<GridCell>, grid: &mut Grid) {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `points_with_infinite_territory`
[INFO] [stderr]    --> src/six.rs:218:1
[INFO] [stderr]     |
[INFO] [stderr] 218 | fn points_with_infinite_territory(grid: &Grid) -> HashSet<String> {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `manhattan_distance`
[INFO] [stderr]    --> src/six.rs:252:1
[INFO] [stderr]     |
[INFO] [stderr] 252 | fn manhattan_distance(point: &GridCell, target_row: usize, target_col: usize) -> i32 {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `INSTRUCTIONS_FILE`
[INFO] [stderr]   --> src/seven.rs:10:1
[INFO] [stderr]    |
[INFO] [stderr] 10 | const INSTRUCTIONS_FILE: &'static str = "src/files/seven/instructions.txt";
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `ALPHABET`
[INFO] [stderr]   --> src/seven.rs:11:1
[INFO] [stderr]    |
[INFO] [stderr] 11 | const ALPHABET: &'static str = "ABCDEFGHIJKLMNOPQRSTUVWXYZ";
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `get_instruction_ordering`
[INFO] [stderr]   --> src/seven.rs:32:1
[INFO] [stderr]    |
[INFO] [stderr] 32 | pub fn get_instruction_ordering() -> String {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `get_next_non_blocked`
[INFO] [stderr]    --> src/seven.rs:91:1
[INFO] [stderr]     |
[INFO] [stderr] 91  | / fn get_next_non_blocked(
[INFO] [stderr] 92  | |     is_blocked_by: &HashMap<char, Vec<char>>,
[INFO] [stderr] 93  | |     steps_seen: &HashSet<char>,
[INFO] [stderr] 94  | | ) -> char {
[INFO] [stderr] ...   |
[INFO] [stderr] 99  | |         .expect("Unable to find a step without any blockers.")
[INFO] [stderr] 100 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `get_dependencies_from_file`
[INFO] [stderr]    --> src/seven.rs:102:1
[INFO] [stderr]     |
[INFO] [stderr] 102 | fn get_dependencies_from_file() -> Vec<Dependency> {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/ten.rs:41:9
[INFO] [stderr]    |
[INFO] [stderr] 41 |     let mut stars: Vec<Star> = BufReader::new(File::open(PATH_TO_INPUT).unwrap()).lines()
[INFO] [stderr]    |         ----^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `TREE_FILE`
[INFO] [stderr]  --> src/eight.rs:3:1
[INFO] [stderr]   |
[INFO] [stderr] 3 | const TREE_FILE: &'static str = "src/files/eight/tree.txt";
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `sum_metadata`
[INFO] [stderr]   --> src/eight.rs:12:1
[INFO] [stderr]    |
[INFO] [stderr] 12 | fn sum_metadata(node: &Node) -> u32 {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `sum_metadata_part_two`
[INFO] [stderr]   --> src/eight.rs:19:1
[INFO] [stderr]    |
[INFO] [stderr] 19 | fn sum_metadata_part_two(node: &Node) -> u32 {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `calculate_sum`
[INFO] [stderr]   --> src/eight.rs:32:1
[INFO] [stderr]    |
[INFO] [stderr] 32 | pub fn calculate_sum() -> u32 {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `calculate_value_of_root`
[INFO] [stderr]   --> src/eight.rs:39:1
[INFO] [stderr]    |
[INFO] [stderr] 39 | pub fn calculate_value_of_root() -> u32 {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `get_node`
[INFO] [stderr]   --> src/eight.rs:47:5
[INFO] [stderr]    |
[INFO] [stderr] 47 |     fn get_node(iter: &mut impl Iterator<Item=u32>) -> Option<Node> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `load_tree_data`
[INFO] [stderr]   --> src/eight.rs:68:1
[INFO] [stderr]    |
[INFO] [stderr] 68 | fn load_tree_data() -> Vec<u32> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `NUM_PLAYERS`
[INFO] [stderr]  --> src/nine.rs:3:1
[INFO] [stderr]   |
[INFO] [stderr] 3 | const NUM_PLAYERS: usize = 432;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `LAST_MARBLE_VALUE`
[INFO] [stderr]  --> src/nine.rs:4:1
[INFO] [stderr]   |
[INFO] [stderr] 4 | const LAST_MARBLE_VALUE: usize = 71019;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `winning_elf_score`
[INFO] [stderr]  --> src/nine.rs:6:1
[INFO] [stderr]   |
[INFO] [stderr] 6 | pub fn winning_elf_score() -> usize {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `PRUNE_HEIGHT`
[INFO] [stderr]  --> src/ten.rs:7:1
[INFO] [stderr]   |
[INFO] [stderr] 7 | const PRUNE_HEIGHT: i32 = 15;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `PRUNE_WIDTH`
[INFO] [stderr]  --> src/ten.rs:8:1
[INFO] [stderr]   |
[INFO] [stderr] 8 | const PRUNE_WIDTH: i32 = 100;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `PATH_TO_INPUT`
[INFO] [stderr]  --> src/ten.rs:9:1
[INFO] [stderr]   |
[INFO] [stderr] 9 | const PATH_TO_INPUT: &'static str = "src/files/ten/stars.txt";
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: type alias is never used: `Sky`
[INFO] [stderr]   --> src/ten.rs:14:1
[INFO] [stderr]    |
[INFO] [stderr] 14 | type Sky = Vec<Vec<bool>>;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `print_sky`
[INFO] [stderr]   --> src/ten.rs:30:1
[INFO] [stderr]    |
[INFO] [stderr] 30 | fn print_sky(sky: &Sky) {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `find_message`
[INFO] [stderr]   --> src/ten.rs:40:1
[INFO] [stderr]    |
[INFO] [stderr] 40 | pub fn find_message() {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `create_sky_of`
[INFO] [stderr]   --> src/ten.rs:68:1
[INFO] [stderr]    |
[INFO] [stderr] 68 | fn create_sky_of(stars: &Vec<Star>) -> Option<Sky> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `GRID_SERIAL_NUMBER`
[INFO] [stderr]  --> src/eleven.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | const GRID_SERIAL_NUMBER: usize = 2866;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `GRID_SQUARE_SIZE`
[INFO] [stderr]  --> src/eleven.rs:2:1
[INFO] [stderr]   |
[INFO] [stderr] 2 | const GRID_SQUARE_SIZE: usize = 300;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `SEARCH_SQUARE_SIZE`
[INFO] [stderr]  --> src/eleven.rs:3:1
[INFO] [stderr]   |
[INFO] [stderr] 3 | const SEARCH_SQUARE_SIZE: usize = 3;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `get_optimal_cell_coords`
[INFO] [stderr]   --> src/eleven.rs:14:1
[INFO] [stderr]    |
[INFO] [stderr] 14 | pub fn get_optimal_cell_coords() -> FuelCell {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `NUM_GENERATIONS`
[INFO] [stderr]  --> src/twelve.rs:6:1
[INFO] [stderr]   |
[INFO] [stderr] 6 | const NUM_GENERATIONS: i32 = 20;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/twelve.rs:13:9
[INFO] [stderr]    |
[INFO] [stderr] 13 |     let mut notes_map = lines.fold(HashMap::new(), |mut map, line| {
[INFO] [stderr]    |         ----^^^^^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `calculate_frequency`
[INFO] [stderr]  --> src/one.rs:7:1
[INFO] [stderr]   |
[INFO] [stderr] 7 | pub fn calculate_frequency() -> Result<i32> {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `first_repeated_frequency`
[INFO] [stderr]   --> src/one.rs:14:1
[INFO] [stderr]    |
[INFO] [stderr] 14 | pub fn first_repeated_frequency() -> i32 {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `RepeatCounts`
[INFO] [stderr]  --> src/two.rs:9:1
[INFO] [stderr]   |
[INFO] [stderr] 9 | struct RepeatCounts {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `calculate_checksum`
[INFO] [stderr]   --> src/two.rs:15:1
[INFO] [stderr]    |
[INFO] [stderr] 15 | pub fn calculate_checksum() -> i32 {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `find_common_letters`
[INFO] [stderr]   --> src/two.rs:53:1
[INFO] [stderr]    |
[INFO] [stderr] 53 | pub fn find_common_letters() -> String {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `has_single_char_difference`
[INFO] [stderr]   --> src/two.rs:73:1
[INFO] [stderr]    |
[INFO] [stderr] 73 | fn has_single_char_difference(left: &str, right: &str) -> bool {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `get_common_chars`
[INFO] [stderr]   --> src/two.rs:92:1
[INFO] [stderr]    |
[INFO] [stderr] 92 | fn get_common_chars(left: &str, right: &str) -> String {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: type alias is never used: `Tiles`
[INFO] [stderr]  --> src/three.rs:5:1
[INFO] [stderr]   |
[INFO] [stderr] 5 | type Tiles = Vec<Vec<i32>>;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Location`
[INFO] [stderr]  --> src/three.rs:8:1
[INFO] [stderr]   |
[INFO] [stderr] 8 | struct Location {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Dimension`
[INFO] [stderr]   --> src/three.rs:14:1
[INFO] [stderr]    |
[INFO] [stderr] 14 | struct Dimension {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Claim`
[INFO] [stderr]   --> src/three.rs:20:1
[INFO] [stderr]    |
[INFO] [stderr] 20 | struct Claim {
[INFO] [stderr]    | ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `find_num_square_inches_overlapping`
[INFO] [stderr]   --> src/three.rs:26:1
[INFO] [stderr]    |
[INFO] [stderr] 26 | pub fn find_num_square_inches_overlapping() -> usize {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `deserialise_claim`
[INFO] [stderr]   --> src/three.rs:71:1
[INFO] [stderr]    |
[INFO] [stderr] 71 | fn deserialise_claim(line: &str) -> Claim {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `add_layer_to_tiles`
[INFO] [stderr]   --> src/three.rs:91:1
[INFO] [stderr]    |
[INFO] [stderr] 91 | fn add_layer_to_tiles(tiles: &mut Tiles, claim: &Claim) {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `count_overlaps`
[INFO] [stderr]    --> src/three.rs:105:1
[INFO] [stderr]     |
[INFO] [stderr] 105 | fn count_overlaps(tiles: &Tiles) -> usize {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `END_OF_TIMESTAMP_INDEX`
[INFO] [stderr]  --> src/four.rs:7:1
[INFO] [stderr]   |
[INFO] [stderr] 7 | const END_OF_TIMESTAMP_INDEX: usize = 19;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `checksum`
[INFO] [stderr]   --> src/four.rs:11:1
[INFO] [stderr]    |
[INFO] [stderr] 11 | pub fn checksum() -> i32 {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `POLYMER_FILE`
[INFO] [stderr]  --> src/five.rs:5:1
[INFO] [stderr]   |
[INFO] [stderr] 5 | const POLYMER_FILE: &'static str = "src/files/five/polymer.txt";
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `UNITS`
[INFO] [stderr]  --> src/five.rs:6:1
[INFO] [stderr]   |
[INFO] [stderr] 6 | const UNITS: &'static str = "abcdefghijklmnopqrstuvwxyz";
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `length_of_final_string`
[INFO] [stderr]  --> src/five.rs:9:1
[INFO] [stderr]   |
[INFO] [stderr] 9 | pub fn length_of_final_string() -> usize {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `react`
[INFO] [stderr]   --> src/five.rs:23:1
[INFO] [stderr]    |
[INFO] [stderr] 23 | fn react(polymer: String) -> String {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `react_filtered`
[INFO] [stderr]   --> src/five.rs:28:1
[INFO] [stderr]    |
[INFO] [stderr] 28 | fn react_filtered(polymer: &String, skip: char) -> String {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `polar_opposites`
[INFO] [stderr]   --> src/five.rs:34:1
[INFO] [stderr]    |
[INFO] [stderr] 34 | fn polar_opposites(a: char, b: char) -> bool {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `react_with_unit`
[INFO] [stderr]   --> src/five.rs:38:1
[INFO] [stderr]    |
[INFO] [stderr] 38 | fn react_with_unit(polymer: &mut String, unit: char) -> String {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `COORDS_FILE`
[INFO] [stderr]   --> src/six.rs:13:1
[INFO] [stderr]    |
[INFO] [stderr] 13 | const COORDS_FILE: &'static str = "src/files/six/coords.txt";
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `MANHATTAN_LIMIT`
[INFO] [stderr]   --> src/six.rs:14:1
[INFO] [stderr]    |
[INFO] [stderr] 14 | const MANHATTAN_LIMIT: i32 = 10000;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: type alias is never used: `Grid`
[INFO] [stderr]   --> src/six.rs:16:1
[INFO] [stderr]    |
[INFO] [stderr] 16 | type Grid = Vec<Vec<GridCell>>;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Border`
[INFO] [stderr]   --> src/six.rs:21:5
[INFO] [stderr]    |
[INFO] [stderr] 21 |     Border,
[INFO] [stderr]    |     ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `TerritoryOfPoint`
[INFO] [stderr]   --> src/six.rs:25:5
[INFO] [stderr]    |
[INFO] [stderr] 25 |     TerritoryOfPoint { point_id: String },
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Empty`
[INFO] [stderr]   --> src/six.rs:27:5
[INFO] [stderr]    |
[INFO] [stderr] 27 |     Empty,
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `in_territory_of`
[INFO] [stderr]   --> src/six.rs:34:5
[INFO] [stderr]    |
[INFO] [stderr] 34 |     fn in_territory_of(point_id: String) -> Self {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `id`
[INFO] [stderr]   --> src/six.rs:37:5
[INFO] [stderr]    |
[INFO] [stderr] 37 |     fn id(&self) -> Option<String> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `get_territory_id`
[INFO] [stderr]   --> src/six.rs:43:5
[INFO] [stderr]    |
[INFO] [stderr] 43 |     fn get_territory_id(&self) -> Option<String> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `row`
[INFO] [stderr]   --> src/six.rs:50:5
[INFO] [stderr]    |
[INFO] [stderr] 50 |     fn row(&self) -> Option<usize> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `col`
[INFO] [stderr]   --> src/six.rs:56:5
[INFO] [stderr]    |
[INFO] [stderr] 56 |     fn col(&self) -> Option<usize> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `get_largest_area`
[INFO] [stderr]   --> src/six.rs:84:1
[INFO] [stderr]    |
[INFO] [stderr] 84 | pub fn get_largest_area() -> i32 {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `find_region`
[INFO] [stderr]    --> src/six.rs:119:1
[INFO] [stderr]     |
[INFO] [stderr] 119 | pub fn find_region() -> i32 {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `build_grid`
[INFO] [stderr]    --> src/six.rs:146:1
[INFO] [stderr]     |
[INFO] [stderr] 146 | fn build_grid(points: &Vec<GridCell>) -> Grid {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `load_points_from_coords_file`
[INFO] [stderr]    --> src/six.rs:163:1
[INFO] [stderr]     |
[INFO] [stderr] 163 | fn load_points_from_coords_file() -> Vec<GridCell> {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `fill_grid_with`
[INFO] [stderr]    --> src/six.rs:171:1
[INFO] [stderr]     |
[INFO] [stderr] 171 | fn fill_grid_with(points: &Vec<GridCell>, height: usize, width: usize) -> Grid {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `populate_closest_points`
[INFO] [stderr]    --> src/six.rs:183:1
[INFO] [stderr]     |
[INFO] [stderr] 183 | fn populate_closest_points(points: &Vec<GridCell>, grid: &mut Grid) {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `points_with_infinite_territory`
[INFO] [stderr]    --> src/six.rs:218:1
[INFO] [stderr]     |
[INFO] [stderr] 218 | fn points_with_infinite_territory(grid: &Grid) -> HashSet<String> {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `manhattan_distance`
[INFO] [stderr]    --> src/six.rs:252:1
[INFO] [stderr]     |
[INFO] [stderr] 252 | fn manhattan_distance(point: &GridCell, target_row: usize, target_col: usize) -> i32 {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `INSTRUCTIONS_FILE`
[INFO] [stderr]   --> src/seven.rs:10:1
[INFO] [stderr]    |
[INFO] [stderr] 10 | const INSTRUCTIONS_FILE: &'static str = "src/files/seven/instructions.txt";
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `ALPHABET`
[INFO] [stderr]   --> src/seven.rs:11:1
[INFO] [stderr]    |
[INFO] [stderr] 11 | const ALPHABET: &'static str = "ABCDEFGHIJKLMNOPQRSTUVWXYZ";
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `get_instruction_ordering`
[INFO] [stderr]   --> src/seven.rs:32:1
[INFO] [stderr]    |
[INFO] [stderr] 32 | pub fn get_instruction_ordering() -> String {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `get_next_non_blocked`
[INFO] [stderr]    --> src/seven.rs:91:1
[INFO] [stderr]     |
[INFO] [stderr] 91  | / fn get_next_non_blocked(
[INFO] [stderr] 92  | |     is_blocked_by: &HashMap<char, Vec<char>>,
[INFO] [stderr] 93  | |     steps_seen: &HashSet<char>,
[INFO] [stderr] 94  | | ) -> char {
[INFO] [stderr] ...   |
[INFO] [stderr] 99  | |         .expect("Unable to find a step without any blockers.")
[INFO] [stderr] 100 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `get_dependencies_from_file`
[INFO] [stderr]    --> src/seven.rs:102:1
[INFO] [stderr]     |
[INFO] [stderr] 102 | fn get_dependencies_from_file() -> Vec<Dependency> {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `TREE_FILE`
[INFO] [stderr]  --> src/eight.rs:3:1
[INFO] [stderr]   |
[INFO] [stderr] 3 | const TREE_FILE: &'static str = "src/files/eight/tree.txt";
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `sum_metadata`
[INFO] [stderr]   --> src/eight.rs:12:1
[INFO] [stderr]    |
[INFO] [stderr] 12 | fn sum_metadata(node: &Node) -> u32 {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `sum_metadata_part_two`
[INFO] [stderr]   --> src/eight.rs:19:1
[INFO] [stderr]    |
[INFO] [stderr] 19 | fn sum_metadata_part_two(node: &Node) -> u32 {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `calculate_sum`
[INFO] [stderr]   --> src/eight.rs:32:1
[INFO] [stderr]    |
[INFO] [stderr] 32 | pub fn calculate_sum() -> u32 {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `calculate_value_of_root`
[INFO] [stderr]   --> src/eight.rs:39:1
[INFO] [stderr]    |
[INFO] [stderr] 39 | pub fn calculate_value_of_root() -> u32 {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `get_node`
[INFO] [stderr]   --> src/eight.rs:47:5
[INFO] [stderr]    |
[INFO] [stderr] 47 |     fn get_node(iter: &mut impl Iterator<Item=u32>) -> Option<Node> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `load_tree_data`
[INFO] [stderr]   --> src/eight.rs:68:1
[INFO] [stderr]    |
[INFO] [stderr] 68 | fn load_tree_data() -> Vec<u32> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `NUM_PLAYERS`
[INFO] [stderr]  --> src/nine.rs:3:1
[INFO] [stderr]   |
[INFO] [stderr] 3 | const NUM_PLAYERS: usize = 432;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `LAST_MARBLE_VALUE`
[INFO] [stderr]  --> src/nine.rs:4:1
[INFO] [stderr]   |
[INFO] [stderr] 4 | const LAST_MARBLE_VALUE: usize = 71019;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `winning_elf_score`
[INFO] [stderr]  --> src/nine.rs:6:1
[INFO] [stderr]   |
[INFO] [stderr] 6 | pub fn winning_elf_score() -> usize {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `PRUNE_HEIGHT`
[INFO] [stderr]  --> src/ten.rs:7:1
[INFO] [stderr]   |
[INFO] [stderr] 7 | const PRUNE_HEIGHT: i32 = 15;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `PRUNE_WIDTH`
[INFO] [stderr]  --> src/ten.rs:8:1
[INFO] [stderr]   |
[INFO] [stderr] 8 | const PRUNE_WIDTH: i32 = 100;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `PATH_TO_INPUT`
[INFO] [stderr]  --> src/ten.rs:9:1
[INFO] [stderr]   |
[INFO] [stderr] 9 | const PATH_TO_INPUT: &'static str = "src/files/ten/stars.txt";
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: type alias is never used: `Sky`
[INFO] [stderr]   --> src/ten.rs:14:1
[INFO] [stderr]    |
[INFO] [stderr] 14 | type Sky = Vec<Vec<bool>>;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `print_sky`
[INFO] [stderr]   --> src/ten.rs:30:1
[INFO] [stderr]    |
[INFO] [stderr] 30 | fn print_sky(sky: &Sky) {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `find_message`
[INFO] [stderr]   --> src/ten.rs:40:1
[INFO] [stderr]    |
[INFO] [stderr] 40 | pub fn find_message() {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `create_sky_of`
[INFO] [stderr]   --> src/ten.rs:68:1
[INFO] [stderr]    |
[INFO] [stderr] 68 | fn create_sky_of(stars: &Vec<Star>) -> Option<Sky> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `GRID_SERIAL_NUMBER`
[INFO] [stderr]  --> src/eleven.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | const GRID_SERIAL_NUMBER: usize = 2866;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `GRID_SQUARE_SIZE`
[INFO] [stderr]  --> src/eleven.rs:2:1
[INFO] [stderr]   |
[INFO] [stderr] 2 | const GRID_SQUARE_SIZE: usize = 300;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `SEARCH_SQUARE_SIZE`
[INFO] [stderr]  --> src/eleven.rs:3:1
[INFO] [stderr]   |
[INFO] [stderr] 3 | const SEARCH_SQUARE_SIZE: usize = 3;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `get_optimal_cell_coords`
[INFO] [stderr]   --> src/eleven.rs:14:1
[INFO] [stderr]    |
[INFO] [stderr] 14 | pub fn get_optimal_cell_coords() -> FuelCell {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `NUM_GENERATIONS`
[INFO] [stderr]  --> src/twelve.rs:6:1
[INFO] [stderr]   |
[INFO] [stderr] 6 | const NUM_GENERATIONS: i32 = 20;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.86s
[INFO] running `"docker" "inspect" "4326396d2d76e6a7937df248abeac455c4b60e7b51b2d0c77bc4b4e47c61c1b8"`
[INFO] running `"docker" "rm" "-f" "4326396d2d76e6a7937df248abeac455c4b60e7b51b2d0c77bc4b4e47c61c1b8"`
[INFO] [stdout] 4326396d2d76e6a7937df248abeac455c4b60e7b51b2d0c77bc4b4e47c61c1b8