[INFO] updating cached repository thallada/advent-of-code-2018
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/thallada/advent-of-code-2018
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/thallada/advent-of-code-2018" "work/ex/pr-60162/sources/master#a850a426491e14186af2250549bf41256b5938d2/gh/thallada/advent-of-code-2018"`
[INFO] [stderr] Cloning into 'work/ex/pr-60162/sources/master#a850a426491e14186af2250549bf41256b5938d2/gh/thallada/advent-of-code-2018'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/thallada/advent-of-code-2018" "work/ex/pr-60162/sources/try#06a150c7d11500b41499224f165e9de1de096768/gh/thallada/advent-of-code-2018"`
[INFO] [stderr] Cloning into 'work/ex/pr-60162/sources/try#06a150c7d11500b41499224f165e9de1de096768/gh/thallada/advent-of-code-2018'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 21a0815fd72021a5b81cf7ec01121d838d3c7892
[INFO] sha for GitHub repo thallada/advent-of-code-2018: 21a0815fd72021a5b81cf7ec01121d838d3c7892
[INFO] validating manifest of thallada/advent-of-code-2018 on toolchain master#a850a426491e14186af2250549bf41256b5938d2
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+a850a426491e14186af2250549bf41256b5938d2-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of thallada/advent-of-code-2018 on toolchain try#06a150c7d11500b41499224f165e9de1de096768
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+06a150c7d11500b41499224f165e9de1de096768-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing thallada/advent-of-code-2018
[INFO] finished frobbing thallada/advent-of-code-2018
[INFO] frobbed toml for thallada/advent-of-code-2018 written to work/ex/pr-60162/sources/master#a850a426491e14186af2250549bf41256b5938d2/gh/thallada/advent-of-code-2018/Cargo.toml
[INFO] started frobbing thallada/advent-of-code-2018
[INFO] finished frobbing thallada/advent-of-code-2018
[INFO] frobbed toml for thallada/advent-of-code-2018 written to work/ex/pr-60162/sources/try#06a150c7d11500b41499224f165e9de1de096768/gh/thallada/advent-of-code-2018/Cargo.toml
[INFO] crate thallada/advent-of-code-2018 already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+a850a426491e14186af2250549bf41256b5938d2-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+06a150c7d11500b41499224f165e9de1de096768-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking thallada/advent-of-code-2018 against master#a850a426491e14186af2250549bf41256b5938d2 for pr-60162
[INFO] running `"docker" "create" "-v" "/mnt/crater-raid/crater/work/local/target-dirs/pr-60162/worker-6/master#a850a426491e14186af2250549bf41256b5938d2:/opt/crater/target:rw,Z" "-v" "/mnt/crater-raid/crater/work/ex/pr-60162/sources/master#a850a426491e14186af2250549bf41256b5938d2/gh/thallada/advent-of-code-2018:/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" "+a850a426491e14186af2250549bf41256b5938d2-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] b1a42f10c74c40758c239c0abe34c5c14b3fde4a56df46397afb98fc1d071332
[INFO] running `"docker" "start" "-a" "b1a42f10c74c40758c239c0abe34c5c14b3fde4a56df46397afb98fc1d071332"`
[INFO] [stderr]     Checking advent-of-code-2018 v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unknown lint: `clippy`
[INFO] [stderr]  --> src/main.rs:1:9
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![warn(clippy)]
[INFO] [stderr]   |         ^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unknown_lints)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unknown lint: `clippy`
[INFO] [stderr]  --> src/main.rs:1:9
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![warn(clippy)]
[INFO] [stderr]   |         ^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unknown_lints)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `HashSet`
[INFO] [stderr]  --> src/day3.rs:7:33
[INFO] [stderr]   |
[INFO] [stderr] 7 | use std::collections::{HashMap, HashSet};
[INFO] [stderr]   |                                 ^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::iter::FromIterator`
[INFO] [stderr]  --> src/day3.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 | use std::iter::FromIterator;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `HashSet`
[INFO] [stderr]  --> src/day4.rs:8:33
[INFO] [stderr]   |
[INFO] [stderr] 8 | use std::collections::{HashMap, HashSet};
[INFO] [stderr]   |                                 ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::iter::FromIterator`
[INFO] [stderr]   --> src/day4.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 | use std::iter::FromIterator;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `HashSet`
[INFO] [stderr]  --> src/day3.rs:7:33
[INFO] [stderr]   |
[INFO] [stderr] 7 | use std::collections::{HashMap, HashSet};
[INFO] [stderr]   |                                 ^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::iter::FromIterator`
[INFO] [stderr]  --> src/day3.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 | use std::iter::FromIterator;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `HashSet`
[INFO] [stderr]  --> src/day4.rs:8:33
[INFO] [stderr]   |
[INFO] [stderr] 8 | use std::collections::{HashMap, HashSet};
[INFO] [stderr]   |                                 ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::iter::FromIterator`
[INFO] [stderr]   --> src/day4.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 | use std::iter::FromIterator;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: cannot borrow `char_map` as mutable because it is also borrowed as immutable
[INFO] [stderr]   --> src/day2.rs:24:13
[INFO] [stderr]    |
[INFO] [stderr] 23 |             let current_count = char_map.get(&c).unwrap_or(&0);
[INFO] [stderr]    |                                 -------- immutable borrow occurs here
[INFO] [stderr] 24 |             char_map.insert(c, current_count + 1);
[INFO] [stderr]    |             ^^^^^^^^           ------------- immutable borrow later used here
[INFO] [stderr]    |             |
[INFO] [stderr]    |             mutable borrow occurs here
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(mutable_borrow_reservation_conflict)] on by default
[INFO] [stderr]    = warning: this borrowing pattern was not meant to be accepted, and may become a hard error in the future
[INFO] [stderr]    = note: for more information, see issue #59159 <https://github.com/rust-lang/rust/issues/59159>
[INFO] [stderr] 
[INFO] [stderr] warning: cannot borrow `claimed_points` as mutable because it is also borrowed as immutable
[INFO] [stderr]   --> src/day3.rs:88:13
[INFO] [stderr]    |
[INFO] [stderr] 87 |             let current_point = claimed_points.get(&point).unwrap_or(&0);
[INFO] [stderr]    |                                 -------------- immutable borrow occurs here
[INFO] [stderr] 88 |             claimed_points.insert(point, current_point + 1);
[INFO] [stderr]    |             ^^^^^^^^^^^^^^               ------------- immutable borrow later used here
[INFO] [stderr]    |             |
[INFO] [stderr]    |             mutable borrow occurs here
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this borrowing pattern was not meant to be accepted, and may become a hard error in the future
[INFO] [stderr]    = note: for more information, see issue #59159 <https://github.com/rust-lang/rust/issues/59159>
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/day7.rs:124:13
[INFO] [stderr]     |
[INFO] [stderr] 124 |         for mut worker in worker_pool.available() {
[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: constant item is never used: `INPUT`
[INFO] [stderr]  --> src/day1.rs:6:1
[INFO] [stderr]   |
[INFO] [stderr] 6 | const INPUT: &str = "inputs/1.txt";
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `LOOP_LIMIT`
[INFO] [stderr]  --> src/day1.rs:7:1
[INFO] [stderr]   |
[INFO] [stderr] 7 | const LOOP_LIMIT: u16 = 1000;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `solve_part1`
[INFO] [stderr]  --> src/day1.rs:9:1
[INFO] [stderr]   |
[INFO] [stderr] 9 | pub fn solve_part1() -> Result<i32, Box<Error>> {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `solve_part2`
[INFO] [stderr]   --> src/day1.rs:13:1
[INFO] [stderr]    |
[INFO] [stderr] 13 | pub fn solve_part2() -> Result<Option<i32>, Box<Error>> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `calculate_resulting_frequency`
[INFO] [stderr]   --> src/day1.rs:17:1
[INFO] [stderr]    |
[INFO] [stderr] 17 | fn calculate_resulting_frequency(filename: &str) -> Result<i32, Box<Error>> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `find_repeating_frequency`
[INFO] [stderr]   --> src/day1.rs:27:1
[INFO] [stderr]    |
[INFO] [stderr] 27 | fn find_repeating_frequency(filename: &str) -> Result<Option<i32>, Box<Error>> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `read_frequencies`
[INFO] [stderr]   --> src/day1.rs:46:1
[INFO] [stderr]    |
[INFO] [stderr] 46 | fn read_frequencies(filename: &str) -> Result<Vec<i32>, Box<Error>> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `INPUT`
[INFO] [stderr]  --> src/day2.rs:6:1
[INFO] [stderr]   |
[INFO] [stderr] 6 | const INPUT: &str = "inputs/2.txt";
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `solve_part1`
[INFO] [stderr]  --> src/day2.rs:8:1
[INFO] [stderr]   |
[INFO] [stderr] 8 | pub fn solve_part1() -> Result<usize, Box<Error>> {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `solve_part2`
[INFO] [stderr]   --> src/day2.rs:12:1
[INFO] [stderr]    |
[INFO] [stderr] 12 | pub fn solve_part2() -> Result<Option<String>, Box<Error>> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `calculate_checksum`
[INFO] [stderr]   --> src/day2.rs:16:1
[INFO] [stderr]    |
[INFO] [stderr] 16 | fn calculate_checksum(filename: &str) -> Result<usize, Box<Error>> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `find_most_common_id_overlap`
[INFO] [stderr]   --> src/day2.rs:37:1
[INFO] [stderr]    |
[INFO] [stderr] 37 | fn find_most_common_id_overlap(filename: &str) -> Result<Option<String>, Box<Error>> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `ids_are_diff_by_n`
[INFO] [stderr]   --> src/day2.rs:54:1
[INFO] [stderr]    |
[INFO] [stderr] 54 | fn ids_are_diff_by_n(first: &String, second: &String, n: usize) -> Option<String> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `INPUT`
[INFO] [stderr]   --> src/day3.rs:12:1
[INFO] [stderr]    |
[INFO] [stderr] 12 | const INPUT: &str = "inputs/3.txt";
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/day3.rs:35:5
[INFO] [stderr]    |
[INFO] [stderr] 35 |     fn new(msg: &str) -> MalformedClaim {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `solve_part1`
[INFO] [stderr]   --> src/day3.rs:52:1
[INFO] [stderr]    |
[INFO] [stderr] 52 | pub fn solve_part1() -> Result<u32, Box<Error>> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `solve_part2`
[INFO] [stderr]   --> src/day3.rs:56:1
[INFO] [stderr]    |
[INFO] [stderr] 56 | pub fn solve_part2() -> Result<Option<u32>, Box<Error>> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `count_overlapping_claimed_points`
[INFO] [stderr]   --> src/day3.rs:60:1
[INFO] [stderr]    |
[INFO] [stderr] 60 | fn count_overlapping_claimed_points(claims: Vec<Claim>) -> u32 {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `find_non_overlapping_claim`
[INFO] [stderr]   --> src/day3.rs:70:1
[INFO] [stderr]    |
[INFO] [stderr] 70 | fn find_non_overlapping_claim(claims: Vec<Claim>) -> Option<u32> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `get_claimed_points`
[INFO] [stderr]   --> src/day3.rs:83:1
[INFO] [stderr]    |
[INFO] [stderr] 83 | fn get_claimed_points(claims: &Vec<Claim>) -> HashMap<Point, u32> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `list_points_in_claim`
[INFO] [stderr]   --> src/day3.rs:94:1
[INFO] [stderr]    |
[INFO] [stderr] 94 | fn list_points_in_claim(claim: &Claim) -> Vec<Point> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `read_claims`
[INFO] [stderr]    --> src/day3.rs:104:1
[INFO] [stderr]     |
[INFO] [stderr] 104 | fn read_claims(filename: &str) -> Result<Vec<Claim>, Box<Error>> {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `get_captured_field`
[INFO] [stderr]    --> src/day3.rs:129:1
[INFO] [stderr]     |
[INFO] [stderr] 129 | fn get_captured_field(captures: &Captures, field: &str) -> Result<u32, Box<Error>> {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `INPUT`
[INFO] [stderr]   --> src/day4.rs:15:1
[INFO] [stderr]    |
[INFO] [stderr] 15 | const INPUT: &str = "inputs/4.txt";
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Start`
[INFO] [stderr]   --> src/day4.rs:19:5
[INFO] [stderr]    |
[INFO] [stderr] 19 | /     Start {
[INFO] [stderr] 20 | |         time: NaiveDateTime,
[INFO] [stderr] 21 | |         guard_id: u32,
[INFO] [stderr] 22 | |     },
[INFO] [stderr]    | |_____^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Sleep`
[INFO] [stderr]   --> src/day4.rs:23:5
[INFO] [stderr]    |
[INFO] [stderr] 23 | /     Sleep {
[INFO] [stderr] 24 | |         time: NaiveDateTime,
[INFO] [stderr] 25 | |     },
[INFO] [stderr]    | |_____^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Wake`
[INFO] [stderr]   --> src/day4.rs:26:5
[INFO] [stderr]    |
[INFO] [stderr] 26 | /     Wake {
[INFO] [stderr] 27 | |         time: NaiveDateTime,
[INFO] [stderr] 28 | |     },
[INFO] [stderr]    | |_____^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `time`
[INFO] [stderr]   --> src/day4.rs:32:5
[INFO] [stderr]    |
[INFO] [stderr] 32 |     fn time(&self) -> NaiveDateTime {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/day4.rs:47:5
[INFO] [stderr]    |
[INFO] [stderr] 47 |     fn new(msg: &str) -> MalformedRecord {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `solve_part1`
[INFO] [stderr]   --> src/day4.rs:64:1
[INFO] [stderr]    |
[INFO] [stderr] 64 | pub fn solve_part1() -> Result<u32, Box<Error>> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `solve_part2`
[INFO] [stderr]   --> src/day4.rs:68:1
[INFO] [stderr]    |
[INFO] [stderr] 68 | pub fn solve_part2() -> Result<u32, Box<Error>> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `get_part1`
[INFO] [stderr]   --> src/day4.rs:72:1
[INFO] [stderr]    |
[INFO] [stderr] 72 | fn get_part1(filename: &str) -> Result<u32, Box<Error>> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `get_part2`
[INFO] [stderr]   --> src/day4.rs:80:1
[INFO] [stderr]    |
[INFO] [stderr] 80 | fn get_part2(filename: &str) -> Result<u32, Box<Error>> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `mode`
[INFO] [stderr]   --> src/day4.rs:96:1
[INFO] [stderr]    |
[INFO] [stderr] 96 | fn mode(numbers: &[u32]) -> u32 {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `minutes_asleep_per_guard`
[INFO] [stderr]    --> src/day4.rs:108:1
[INFO] [stderr]     |
[INFO] [stderr] 108 | fn minutes_asleep_per_guard(mut records: Vec<Record>) -> HashMap<u32, Vec<u32>> {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `read_records`
[INFO] [stderr]    --> src/day4.rs:129:1
[INFO] [stderr]     |
[INFO] [stderr] 129 | fn read_records(filename: &str) -> Result<Vec<Record>, Box<Error>> {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `get_captured_field`
[INFO] [stderr]    --> src/day4.rs:167:1
[INFO] [stderr]     |
[INFO] [stderr] 167 | fn get_captured_field(captures: &Captures, field: &str) -> Result<String, Box<Error>> {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `has_captured_field`
[INFO] [stderr]    --> src/day4.rs:176:1
[INFO] [stderr]     |
[INFO] [stderr] 176 | fn has_captured_field(captures: &Captures, field: &str) -> Result<bool, Box<Error>> {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `INPUT`
[INFO] [stderr]   --> src/day5.rs:10:1
[INFO] [stderr]    |
[INFO] [stderr] 10 | const INPUT: &str = "inputs/5.txt";
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `UNITS`
[INFO] [stderr]   --> src/day5.rs:11:1
[INFO] [stderr]    |
[INFO] [stderr] 11 | const UNITS: &str = "abcdefghijklmnopqrstuvwxyz";
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `solve_part1`
[INFO] [stderr]   --> src/day5.rs:13:1
[INFO] [stderr]    |
[INFO] [stderr] 13 | pub fn solve_part1() -> Result<usize, Box<Error>> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `solve_part2`
[INFO] [stderr]   --> src/day5.rs:18:1
[INFO] [stderr]    |
[INFO] [stderr] 18 | pub fn solve_part2() -> Result<usize, Box<Error>> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `read_polymer`
[INFO] [stderr]   --> src/day5.rs:23:1
[INFO] [stderr]    |
[INFO] [stderr] 23 | fn read_polymer(filename: &str) -> Result<String, Box<Error>> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `reduce_polymer`
[INFO] [stderr]   --> src/day5.rs:29:1
[INFO] [stderr]    |
[INFO] [stderr] 29 | fn reduce_polymer(polymer: &String) -> String {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `reduce_polymer_completely`
[INFO] [stderr]   --> src/day5.rs:40:1
[INFO] [stderr]    |
[INFO] [stderr] 40 | fn reduce_polymer_completely(polymer: String) -> String {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `find_shortest_unit_eliminated_polymer`
[INFO] [stderr]   --> src/day5.rs:49:1
[INFO] [stderr]    |
[INFO] [stderr] 49 | fn find_shortest_unit_eliminated_polymer(polymer: String) -> usize {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: static item is never used: `ALPHABET`
[INFO] [stderr]   --> src/day6.rs:11:1
[INFO] [stderr]    |
[INFO] [stderr] 11 | / static ALPHABET: [char; 52] = [
[INFO] [stderr] 12 | |     'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j',
[INFO] [stderr] 13 | |     'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r', 's', 't',
[INFO] [stderr] 14 | |     'u', 'v', 'w', 'x', 'y', 'z',
[INFO] [stderr] ...  |
[INFO] [stderr] 17 | |     'U', 'V', 'W', 'X', 'Y', 'Z',
[INFO] [stderr] 18 | | ];
[INFO] [stderr]    | |__^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `INPUT`
[INFO] [stderr]   --> src/day6.rs:19:1
[INFO] [stderr]    |
[INFO] [stderr] 19 | const INPUT: &str = "inputs/6.txt";
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Unfilled`
[INFO] [stderr]   --> src/day6.rs:30:5
[INFO] [stderr]    |
[INFO] [stderr] 30 | /     Unfilled {
[INFO] [stderr] 31 | |         x: u32,
[INFO] [stderr] 32 | |         y: u32,
[INFO] [stderr] 33 | |     },
[INFO] [stderr]    | |_____^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Tied`
[INFO] [stderr]   --> src/day6.rs:34:5
[INFO] [stderr]    |
[INFO] [stderr] 34 | /     Tied {
[INFO] [stderr] 35 | |         x: u32,
[INFO] [stderr] 36 | |         y: u32,
[INFO] [stderr] 37 | |         closest_dist: u32,
[INFO] [stderr] 38 | |     },
[INFO] [stderr]    | |_____^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Filled`
[INFO] [stderr]   --> src/day6.rs:39:5
[INFO] [stderr]    |
[INFO] [stderr] 39 | /     Filled {
[INFO] [stderr] 40 | |         x: u32,
[INFO] [stderr] 41 | |         y: u32,
[INFO] [stderr] 42 | |         closest_coord: Coordinate,
[INFO] [stderr] 43 | |         closest_dist: u32,
[INFO] [stderr] 44 | |     },
[INFO] [stderr]    | |_____^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/day6.rs:91:5
[INFO] [stderr]    |
[INFO] [stderr] 91 |     fn new(msg: &str) -> MalformedCoordinate {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `solve_part1`
[INFO] [stderr]    --> src/day6.rs:108:1
[INFO] [stderr]     |
[INFO] [stderr] 108 | pub fn solve_part1() -> Result<u32, Box<Error>> {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `solve_part2`
[INFO] [stderr]    --> src/day6.rs:117:1
[INFO] [stderr]     |
[INFO] [stderr] 117 | pub fn solve_part2() -> Result<u32, Box<Error>> {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `read_coordinates`
[INFO] [stderr]    --> src/day6.rs:124:1
[INFO] [stderr]     |
[INFO] [stderr] 124 | fn read_coordinates(filename: &str) -> Result<Vec<Coordinate>, Box<Error>> {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `get_captured_field`
[INFO] [stderr]    --> src/day6.rs:148:1
[INFO] [stderr]     |
[INFO] [stderr] 148 | fn get_captured_field(captures: &Captures, field: &str) -> Result<String, Box<Error>> {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `get_boundary_coordinate`
[INFO] [stderr]    --> src/day6.rs:157:1
[INFO] [stderr]     |
[INFO] [stderr] 157 | fn get_boundary_coordinate(coords: &Vec<Coordinate>) -> Coordinate {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `create_grid`
[INFO] [stderr]    --> src/day6.rs:170:1
[INFO] [stderr]     |
[INFO] [stderr] 170 | fn create_grid(boundary_coord: Coordinate) -> Grid {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `fill_grid`
[INFO] [stderr]    --> src/day6.rs:180:1
[INFO] [stderr]     |
[INFO] [stderr] 180 | / fn fill_grid<'a>(
[INFO] [stderr] 181 | |     grid: &'a mut Grid,
[INFO] [stderr] 182 | |     coords: &'a Vec<Coordinate>,
[INFO] [stderr] 183 | | ) -> Result<&'a mut Grid, Box<Error>> {
[INFO] [stderr] ...   |
[INFO] [stderr] 192 | |     Ok(grid)
[INFO] [stderr] 193 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `fill_grid_with_coordinate`
[INFO] [stderr]    --> src/day6.rs:195:1
[INFO] [stderr]     |
[INFO] [stderr] 195 | / fn fill_grid_with_coordinate(
[INFO] [stderr] 196 | |     grid: &mut Grid,
[INFO] [stderr] 197 | |     index: u32,
[INFO] [stderr] 198 | |     coord: Coordinate,
[INFO] [stderr] ...   |
[INFO] [stderr] 242 | |     Ok(grid)
[INFO] [stderr] 243 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `manhattan_dist`
[INFO] [stderr]    --> src/day6.rs:245:1
[INFO] [stderr]     |
[INFO] [stderr] 245 | fn manhattan_dist(x1: u32, y1: u32, x2: u32, y2: u32) -> u32 {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `find_largest_coord_area`
[INFO] [stderr]    --> src/day6.rs:249:1
[INFO] [stderr]     |
[INFO] [stderr] 249 | / fn find_largest_coord_area(
[INFO] [stderr] 250 | |     grid: Grid,
[INFO] [stderr] 251 | | ) -> u32 {
[INFO] [stderr] 252 | |     let mut point_count = HashMap::new();
[INFO] [stderr] ...   |
[INFO] [stderr] 271 | |     *point_count.values().max().unwrap_or(&0)
[INFO] [stderr] 272 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `region_closest_to_coordinates_size`
[INFO] [stderr]    --> src/day6.rs:274:1
[INFO] [stderr]     |
[INFO] [stderr] 274 | fn region_closest_to_coordinates_size(grid: Grid, coords: Vec<Coordinate>) -> u32 {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: type alias is never used: `Result`
[INFO] [stderr]   --> src/day7.rs:12:1
[INFO] [stderr]    |
[INFO] [stderr] 12 | type Result<T> = result::Result<T, Box<Error>>;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: type alias is never used: `Instructions`
[INFO] [stderr]   --> src/day7.rs:14:1
[INFO] [stderr]    |
[INFO] [stderr] 14 | type Instructions = HashMap<char, Vec<char>>;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `INPUT`
[INFO] [stderr]   --> src/day7.rs:16:1
[INFO] [stderr]    |
[INFO] [stderr] 16 | const INPUT: &str = "inputs/7.txt";
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: static item is never used: `ALPHABET`
[INFO] [stderr]   --> src/day7.rs:17:1
[INFO] [stderr]    |
[INFO] [stderr] 17 | / static ALPHABET: [char; 26] = [
[INFO] [stderr] 18 | |     'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O', 'P', 'Q', 'R', 'S',
[INFO] [stderr] 19 | |     'T', 'U', 'V', 'W', 'X', 'Y', 'Z',
[INFO] [stderr] 20 | | ];
[INFO] [stderr]    | |__^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `solve_part1`
[INFO] [stderr]   --> src/day7.rs:22:1
[INFO] [stderr]    |
[INFO] [stderr] 22 | pub fn solve_part1() -> Result<String> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `solve_part2`
[INFO] [stderr]   --> src/day7.rs:27:1
[INFO] [stderr]    |
[INFO] [stderr] 27 | pub fn solve_part2() -> Result<u32> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `read_instructions`
[INFO] [stderr]   --> src/day7.rs:33:1
[INFO] [stderr]    |
[INFO] [stderr] 33 | fn read_instructions(filename: &str) -> Result<Instructions> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `get_captured_field`
[INFO] [stderr]   --> src/day7.rs:61:1
[INFO] [stderr]    |
[INFO] [stderr] 61 | fn get_captured_field(captures: &Captures, field: &str) -> Result<char> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `get_step_sequence`
[INFO] [stderr]   --> src/day7.rs:77:1
[INFO] [stderr]    |
[INFO] [stderr] 77 | fn get_step_sequence(instructions: &mut Instructions) -> String {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `get_parallel_step_sequence_seconds`
[INFO] [stderr]    --> src/day7.rs:102:1
[INFO] [stderr]     |
[INFO] [stderr] 102 | / fn get_parallel_step_sequence_seconds(
[INFO] [stderr] 103 | |     mut instructions: &mut Instructions,
[INFO] [stderr] 104 | |     worker_pool: &mut WorkerPool,
[INFO] [stderr] 105 | | ) -> u32 {
[INFO] [stderr] ...   |
[INFO] [stderr] 135 | |     seconds
[INFO] [stderr] 136 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `get_seconds_for_step`
[INFO] [stderr]    --> src/day7.rs:138:1
[INFO] [stderr]     |
[INFO] [stderr] 138 | fn get_seconds_for_step(step_letter: char) -> u8 {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Idle`
[INFO] [stderr]    --> src/day7.rs:150:5
[INFO] [stderr]     |
[INFO] [stderr] 150 |     Idle,
[INFO] [stderr]     |     ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Working`
[INFO] [stderr]    --> src/day7.rs:151:5
[INFO] [stderr]     |
[INFO] [stderr] 151 |     Working { step: char, remaining: u8 },
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]    --> src/day7.rs:160:5
[INFO] [stderr]     |
[INFO] [stderr] 160 |     fn new(count: u8) -> WorkerPool {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `available`
[INFO] [stderr]    --> src/day7.rs:171:5
[INFO] [stderr]     |
[INFO] [stderr] 171 |     fn available(&self) -> Vec<Worker> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `all_idle`
[INFO] [stderr]    --> src/day7.rs:182:5
[INFO] [stderr]     |
[INFO] [stderr] 182 |     fn all_idle(&self) -> bool {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `run_one_second`
[INFO] [stderr]    --> src/day7.rs:188:5
[INFO] [stderr]     |
[INFO] [stderr] 188 |     fn run_one_second(&mut self, instructions: &mut Instructions, sequence: &mut String) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `assign_worker`
[INFO] [stderr]    --> src/day7.rs:218:5
[INFO] [stderr]     |
[INFO] [stderr] 218 |     fn assign_worker(&mut self, id: u8, step: char) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: type alias is never used: `Result`
[INFO] [stderr]  --> src/day8.rs:5:1
[INFO] [stderr]   |
[INFO] [stderr] 5 | type Result<T> = result::Result<T, Box<Error>>;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `INPUT`
[INFO] [stderr]  --> src/day8.rs:7:1
[INFO] [stderr]   |
[INFO] [stderr] 7 | const INPUT: &str = "inputs/8.txt";
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `solve_part1`
[INFO] [stderr]  --> src/day8.rs:9:1
[INFO] [stderr]   |
[INFO] [stderr] 9 | pub fn solve_part1() -> Result<u32> {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `solve_part2`
[INFO] [stderr]   --> src/day8.rs:14:1
[INFO] [stderr]    |
[INFO] [stderr] 14 | pub fn solve_part2() -> Result<u32> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `read_license`
[INFO] [stderr]   --> src/day8.rs:19:1
[INFO] [stderr]    |
[INFO] [stderr] 19 | fn read_license(filename: &str) -> Result<Vec<u32>> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `sum_metadata`
[INFO] [stderr]   --> src/day8.rs:25:1
[INFO] [stderr]    |
[INFO] [stderr] 25 | fn sum_metadata(license: &[u32], mut index: usize, mut sum_acc: u32) -> (u32, usize) {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `sum_metadata_with_indices`
[INFO] [stderr]   --> src/day8.rs:44:1
[INFO] [stderr]    |
[INFO] [stderr] 44 | fn sum_metadata_with_indices(license: &[u32], mut index: usize) -> (u32, usize) {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `solve_part1`
[INFO] [stderr]    --> src/day9.rs:136:1
[INFO] [stderr]     |
[INFO] [stderr] 136 | pub fn solve_part1() -> Result<usize> {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: cannot borrow `char_map` as mutable because it is also borrowed as immutable
[INFO] [stderr]   --> src/day2.rs:24:13
[INFO] [stderr]    |
[INFO] [stderr] 23 |             let current_count = char_map.get(&c).unwrap_or(&0);
[INFO] [stderr]    |                                 -------- immutable borrow occurs here
[INFO] [stderr] 24 |             char_map.insert(c, current_count + 1);
[INFO] [stderr]    |             ^^^^^^^^           ------------- immutable borrow later used here
[INFO] [stderr]    |             |
[INFO] [stderr]    |             mutable borrow occurs here
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(mutable_borrow_reservation_conflict)] on by default
[INFO] [stderr]    = warning: this borrowing pattern was not meant to be accepted, and may become a hard error in the future
[INFO] [stderr]    = note: for more information, see issue #59159 <https://github.com/rust-lang/rust/issues/59159>
[INFO] [stderr] 
[INFO] [stderr] warning: cannot borrow `claimed_points` as mutable because it is also borrowed as immutable
[INFO] [stderr]   --> src/day3.rs:88:13
[INFO] [stderr]    |
[INFO] [stderr] 87 |             let current_point = claimed_points.get(&point).unwrap_or(&0);
[INFO] [stderr]    |                                 -------------- immutable borrow occurs here
[INFO] [stderr] 88 |             claimed_points.insert(point, current_point + 1);
[INFO] [stderr]    |             ^^^^^^^^^^^^^^               ------------- immutable borrow later used here
[INFO] [stderr]    |             |
[INFO] [stderr]    |             mutable borrow occurs here
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this borrowing pattern was not meant to be accepted, and may become a hard error in the future
[INFO] [stderr]    = note: for more information, see issue #59159 <https://github.com/rust-lang/rust/issues/59159>
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/day7.rs:124:13
[INFO] [stderr]     |
[INFO] [stderr] 124 |         for mut worker in worker_pool.available() {
[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: constant item is never used: `INPUT`
[INFO] [stderr]  --> src/day1.rs:6:1
[INFO] [stderr]   |
[INFO] [stderr] 6 | const INPUT: &str = "inputs/1.txt";
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `solve_part1`
[INFO] [stderr]  --> src/day1.rs:9:1
[INFO] [stderr]   |
[INFO] [stderr] 9 | pub fn solve_part1() -> Result<i32, Box<Error>> {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `solve_part2`
[INFO] [stderr]   --> src/day1.rs:13:1
[INFO] [stderr]    |
[INFO] [stderr] 13 | pub fn solve_part2() -> Result<Option<i32>, Box<Error>> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `INPUT`
[INFO] [stderr]  --> src/day2.rs:6:1
[INFO] [stderr]   |
[INFO] [stderr] 6 | const INPUT: &str = "inputs/2.txt";
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `solve_part1`
[INFO] [stderr]  --> src/day2.rs:8:1
[INFO] [stderr]   |
[INFO] [stderr] 8 | pub fn solve_part1() -> Result<usize, Box<Error>> {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `solve_part2`
[INFO] [stderr]   --> src/day2.rs:12:1
[INFO] [stderr]    |
[INFO] [stderr] 12 | pub fn solve_part2() -> Result<Option<String>, Box<Error>> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `INPUT`
[INFO] [stderr]   --> src/day3.rs:12:1
[INFO] [stderr]    |
[INFO] [stderr] 12 | const INPUT: &str = "inputs/3.txt";
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/day3.rs:35:5
[INFO] [stderr]    |
[INFO] [stderr] 35 |     fn new(msg: &str) -> MalformedClaim {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `solve_part1`
[INFO] [stderr]   --> src/day3.rs:52:1
[INFO] [stderr]    |
[INFO] [stderr] 52 | pub fn solve_part1() -> Result<u32, Box<Error>> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `solve_part2`
[INFO] [stderr]   --> src/day3.rs:56:1
[INFO] [stderr]    |
[INFO] [stderr] 56 | pub fn solve_part2() -> Result<Option<u32>, Box<Error>> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `INPUT`
[INFO] [stderr]   --> src/day4.rs:15:1
[INFO] [stderr]    |
[INFO] [stderr] 15 | const INPUT: &str = "inputs/4.txt";
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/day4.rs:47:5
[INFO] [stderr]    |
[INFO] [stderr] 47 |     fn new(msg: &str) -> MalformedRecord {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `solve_part1`
[INFO] [stderr]   --> src/day4.rs:64:1
[INFO] [stderr]    |
[INFO] [stderr] 64 | pub fn solve_part1() -> Result<u32, Box<Error>> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `solve_part2`
[INFO] [stderr]   --> src/day4.rs:68:1
[INFO] [stderr]    |
[INFO] [stderr] 68 | pub fn solve_part2() -> Result<u32, Box<Error>> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `INPUT`
[INFO] [stderr]   --> src/day5.rs:10:1
[INFO] [stderr]    |
[INFO] [stderr] 10 | const INPUT: &str = "inputs/5.txt";
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `solve_part1`
[INFO] [stderr]   --> src/day5.rs:13:1
[INFO] [stderr]    |
[INFO] [stderr] 13 | pub fn solve_part1() -> Result<usize, Box<Error>> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `solve_part2`
[INFO] [stderr]   --> src/day5.rs:18:1
[INFO] [stderr]    |
[INFO] [stderr] 18 | pub fn solve_part2() -> Result<usize, Box<Error>> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `INPUT`
[INFO] [stderr]   --> src/day6.rs:19:1
[INFO] [stderr]    |
[INFO] [stderr] 19 | const INPUT: &str = "inputs/6.txt";
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/day6.rs:91:5
[INFO] [stderr]    |
[INFO] [stderr] 91 |     fn new(msg: &str) -> MalformedCoordinate {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `solve_part1`
[INFO] [stderr]    --> src/day6.rs:108:1
[INFO] [stderr]     |
[INFO] [stderr] 108 | pub fn solve_part1() -> Result<u32, Box<Error>> {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `solve_part2`
[INFO] [stderr]    --> src/day6.rs:117:1
[INFO] [stderr]     |
[INFO] [stderr] 117 | pub fn solve_part2() -> Result<u32, Box<Error>> {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `region_closest_to_coordinates_size`
[INFO] [stderr]    --> src/day6.rs:274:1
[INFO] [stderr]     |
[INFO] [stderr] 274 | fn region_closest_to_coordinates_size(grid: Grid, coords: Vec<Coordinate>) -> u32 {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `INPUT`
[INFO] [stderr]   --> src/day7.rs:16:1
[INFO] [stderr]    |
[INFO] [stderr] 16 | const INPUT: &str = "inputs/7.txt";
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `solve_part1`
[INFO] [stderr]   --> src/day7.rs:22:1
[INFO] [stderr]    |
[INFO] [stderr] 22 | pub fn solve_part1() -> Result<String> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `solve_part2`
[INFO] [stderr]   --> src/day7.rs:27:1
[INFO] [stderr]    |
[INFO] [stderr] 27 | pub fn solve_part2() -> Result<u32> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `INPUT`
[INFO] [stderr]  --> src/day8.rs:7:1
[INFO] [stderr]   |
[INFO] [stderr] 7 | const INPUT: &str = "inputs/8.txt";
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `solve_part1`
[INFO] [stderr]  --> src/day8.rs:9:1
[INFO] [stderr]   |
[INFO] [stderr] 9 | pub fn solve_part1() -> Result<u32> {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `solve_part2`
[INFO] [stderr]   --> src/day8.rs:14:1
[INFO] [stderr]    |
[INFO] [stderr] 14 | pub fn solve_part2() -> Result<u32> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `solve_part1`
[INFO] [stderr]    --> src/day9.rs:136:1
[INFO] [stderr]     |
[INFO] [stderr] 136 | pub fn solve_part1() -> Result<usize> {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.91s
[INFO] running `"docker" "inspect" "b1a42f10c74c40758c239c0abe34c5c14b3fde4a56df46397afb98fc1d071332"`
[INFO] running `"docker" "rm" "-f" "b1a42f10c74c40758c239c0abe34c5c14b3fde4a56df46397afb98fc1d071332"`
[INFO] [stdout] b1a42f10c74c40758c239c0abe34c5c14b3fde4a56df46397afb98fc1d071332