[INFO] updating cached repository efrees/adventofcode2018
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/efrees/adventofcode2018
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/efrees/adventofcode2018" "work/ex/pr-58592/sources/master#f66e4697ae286985ddefc53c3a047614568458bb/gh/efrees/adventofcode2018"`
[INFO] [stderr] Cloning into 'work/ex/pr-58592/sources/master#f66e4697ae286985ddefc53c3a047614568458bb/gh/efrees/adventofcode2018'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/efrees/adventofcode2018" "work/ex/pr-58592/sources/try#c3b22200e6f5b70eb1f99ae6944d989ae17a458a/gh/efrees/adventofcode2018"`
[INFO] [stderr] Cloning into 'work/ex/pr-58592/sources/try#c3b22200e6f5b70eb1f99ae6944d989ae17a458a/gh/efrees/adventofcode2018'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 18bc514b8a54db85cbaaa39ec9c1d7b9020e5200
[INFO] sha for GitHub repo efrees/adventofcode2018: 18bc514b8a54db85cbaaa39ec9c1d7b9020e5200
[INFO] validating manifest of efrees/adventofcode2018 on toolchain master#f66e4697ae286985ddefc53c3a047614568458bb
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+f66e4697ae286985ddefc53c3a047614568458bb-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of efrees/adventofcode2018 on toolchain try#c3b22200e6f5b70eb1f99ae6944d989ae17a458a
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c3b22200e6f5b70eb1f99ae6944d989ae17a458a-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing efrees/adventofcode2018
[INFO] finished frobbing efrees/adventofcode2018
[INFO] frobbed toml for efrees/adventofcode2018 written to work/ex/pr-58592/sources/master#f66e4697ae286985ddefc53c3a047614568458bb/gh/efrees/adventofcode2018/Cargo.toml
[INFO] started frobbing efrees/adventofcode2018
[INFO] finished frobbing efrees/adventofcode2018
[INFO] frobbed toml for efrees/adventofcode2018 written to work/ex/pr-58592/sources/try#c3b22200e6f5b70eb1f99ae6944d989ae17a458a/gh/efrees/adventofcode2018/Cargo.toml
[INFO] crate efrees/adventofcode2018 has a lockfile. skipping
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+f66e4697ae286985ddefc53c3a047614568458bb-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c3b22200e6f5b70eb1f99ae6944d989ae17a458a-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking efrees/adventofcode2018 against try#c3b22200e6f5b70eb1f99ae6944d989ae17a458a for pr-58592
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-58592/worker-7/try#c3b22200e6f5b70eb1f99ae6944d989ae17a458a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-58592/sources/try#c3b22200e6f5b70eb1f99ae6944d989ae17a458a/gh/efrees/adventofcode2018:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/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" "+c3b22200e6f5b70eb1f99ae6944d989ae17a458a-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 58a55f320ddbe2e372f5ad01f7bcab2638962f6053de5ffdab1625f11f03dd68
[INFO] running `"docker" "start" "-a" "58a55f320ddbe2e372f5ad01f7bcab2638962f6053de5ffdab1625f11f03dd68"`
[INFO] [stderr]     Checking advent_2018 v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]   --> src/solutions/day16.rs:63:32
[INFO] [stderr]    |
[INFO] [stderr] 63 |                     .filter(|&(i, set)| set.len() == 1)
[INFO] [stderr]    |                                ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]   --> src/solutions/day16.rs:63:32
[INFO] [stderr]    |
[INFO] [stderr] 63 |                     .filter(|&(i, set)| set.len() == 1)
[INFO] [stderr]    |                                ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `solve`
[INFO] [stderr]  --> src/solutions/day1.rs:3:1
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub fn solve() {
[INFO] [stderr]   | ^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Point`
[INFO] [stderr]  --> src/solutions/day10.rs:4:1
[INFO] [stderr]   |
[INFO] [stderr] 4 | struct Point(i32, i32);
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `PointWithVelocity`
[INFO] [stderr]  --> src/solutions/day10.rs:6:1
[INFO] [stderr]   |
[INFO] [stderr] 6 | struct PointWithVelocity {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `solve`
[INFO] [stderr]   --> src/solutions/day10.rs:11:1
[INFO] [stderr]    |
[INFO] [stderr] 11 | pub fn solve() {
[INFO] [stderr]    | ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `print_point_section`
[INFO] [stderr]    --> src/solutions/day10.rs:77:1
[INFO] [stderr]     |
[INFO] [stderr] 77  | / fn print_point_section(
[INFO] [stderr] 78  | |     min_x: i32,
[INFO] [stderr] 79  | |     min_y: i32,
[INFO] [stderr] 80  | |     max_x: i32,
[INFO] [stderr] ...   |
[INFO] [stderr] 99  | |     }
[INFO] [stderr] 100 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `solve`
[INFO] [stderr]  --> src/solutions/day11.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub fn solve() {
[INFO] [stderr]   | ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `power_level`
[INFO] [stderr]   --> src/solutions/day11.rs:85:1
[INFO] [stderr]    |
[INFO] [stderr] 85 | fn power_level(x: i32, y: i32, serial_number: i32) -> i32 {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `print_grid`
[INFO] [stderr]   --> src/solutions/day11.rs:95:1
[INFO] [stderr]    |
[INFO] [stderr] 95 | fn print_grid(grid: &Vec<Vec<i32>>) {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `solve`
[INFO] [stderr]  --> src/solutions/day12.rs:3:1
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub fn solve() {
[INFO] [stderr]   | ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `parse_rule`
[INFO] [stderr]   --> src/solutions/day12.rs:80:1
[INFO] [stderr]    |
[INFO] [stderr] 80 | fn parse_rule(line: &String) -> ((bool, bool, bool, bool, bool), bool) {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `print_result`
[INFO] [stderr]   --> src/solutions/day12.rs:96:1
[INFO] [stderr]    |
[INFO] [stderr] 96 | fn print_result(next_config: &Vec<&bool>, zero_offset: i64, generation: i64) {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `solve`
[INFO] [stderr]  --> src/solutions/day13.rs:4:1
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub fn solve() {
[INFO] [stderr]   | ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `parse_grid`
[INFO] [stderr]   --> src/solutions/day13.rs:50:1
[INFO] [stderr]    |
[INFO] [stderr] 50 | fn parse_grid(lines: &Vec<String>) -> Vec<Vec<RailType>> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `initiate_carts`
[INFO] [stderr]   --> src/solutions/day13.rs:71:1
[INFO] [stderr]    |
[INFO] [stderr] 71 | fn initiate_carts(lines: &Vec<String>) -> Vec<Cart> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `move_cart_on_grid`
[INFO] [stderr]    --> src/solutions/day13.rs:112:1
[INFO] [stderr]     |
[INFO] [stderr] 112 | fn move_cart_on_grid(cart: &mut Cart, grid: &Vec<Vec<RailType>>) {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Up`
[INFO] [stderr]    --> src/solutions/day13.rs:139:5
[INFO] [stderr]     |
[INFO] [stderr] 139 |     Up,
[INFO] [stderr]     |     ^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Down`
[INFO] [stderr]    --> src/solutions/day13.rs:140:5
[INFO] [stderr]     |
[INFO] [stderr] 140 |     Down,
[INFO] [stderr]     |     ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Left`
[INFO] [stderr]    --> src/solutions/day13.rs:141:5
[INFO] [stderr]     |
[INFO] [stderr] 141 |     Left,
[INFO] [stderr]     |     ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Right`
[INFO] [stderr]    --> src/solutions/day13.rs:142:5
[INFO] [stderr]     |
[INFO] [stderr] 142 |     Right,
[INFO] [stderr]     |     ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `as_vector`
[INFO] [stderr]    --> src/solutions/day13.rs:146:5
[INFO] [stderr]     |
[INFO] [stderr] 146 |     fn as_vector(&self) -> Point {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `is_horizontal`
[INFO] [stderr]    --> src/solutions/day13.rs:155:5
[INFO] [stderr]     |
[INFO] [stderr] 155 |     fn is_horizontal(&self) -> bool {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `is_vertical`
[INFO] [stderr]    --> src/solutions/day13.rs:159:5
[INFO] [stderr]     |
[INFO] [stderr] 159 |     fn is_vertical(&self) -> bool {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `turn_corner`
[INFO] [stderr]    --> src/solutions/day13.rs:163:5
[INFO] [stderr]     |
[INFO] [stderr] 163 |     fn turn_corner(&self, c_type: char) -> Direction {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `turn_left`
[INFO] [stderr]    --> src/solutions/day13.rs:176:5
[INFO] [stderr]     |
[INFO] [stderr] 176 |     fn turn_left(&self) -> Direction {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `turn_right`
[INFO] [stderr]    --> src/solutions/day13.rs:185:5
[INFO] [stderr]     |
[INFO] [stderr] 185 |     fn turn_right(&self) -> Direction {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Cart`
[INFO] [stderr]    --> src/solutions/day13.rs:196:1
[INFO] [stderr]     |
[INFO] [stderr] 196 | struct Cart {
[INFO] [stderr]     | ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `RailType`
[INFO] [stderr]    --> src/solutions/day13.rs:203:1
[INFO] [stderr]     |
[INFO] [stderr] 203 | enum RailType {
[INFO] [stderr]     | ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `solve`
[INFO] [stderr]  --> src/solutions/day14.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub fn solve() {
[INFO] [stderr]   | ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `build_recipes_to`
[INFO] [stderr]   --> src/solutions/day14.rs:40:1
[INFO] [stderr]    |
[INFO] [stderr] 40 | / fn build_recipes_to(
[INFO] [stderr] 41 | |     recipes: &mut Vec<u8>,
[INFO] [stderr] 42 | |     target_count: usize,
[INFO] [stderr] 43 | |     elf_positions: &mut (usize, usize),
[INFO] [stderr] ...  |
[INFO] [stderr] 66 | |     elf_positions.1 = second_elf;
[INFO] [stderr] 67 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `solve`
[INFO] [stderr]  --> src/solutions/day2.rs:3:1
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub fn solve() {
[INFO] [stderr]   | ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `solve`
[INFO] [stderr]  --> src/solutions/day3.rs:4:1
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub fn solve() {
[INFO] [stderr]   | ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `GuardStart`
[INFO] [stderr]  --> src/solutions/day4.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 |     GuardStart,
[INFO] [stderr]   |     ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `GuardSleep`
[INFO] [stderr]  --> src/solutions/day4.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 |     GuardSleep,
[INFO] [stderr]   |     ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `GuardWake`
[INFO] [stderr]  --> src/solutions/day4.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 |     GuardWake,
[INFO] [stderr]   |     ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `GuardLog`
[INFO] [stderr]   --> src/solutions/day4.rs:13:1
[INFO] [stderr]    |
[INFO] [stderr] 13 | struct GuardLog {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `solve`
[INFO] [stderr]   --> src/solutions/day4.rs:19:1
[INFO] [stderr]    |
[INFO] [stderr] 19 | pub fn solve() {
[INFO] [stderr]    | ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `parse_log_from_line`
[INFO] [stderr]    --> src/solutions/day4.rs:102:1
[INFO] [stderr]     |
[INFO] [stderr] 102 | fn parse_log_from_line(line: &str) -> GuardLog {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `parse_log_type_from_message`
[INFO] [stderr]    --> src/solutions/day4.rs:118:1
[INFO] [stderr]     |
[INFO] [stderr] 118 | fn parse_log_type_from_message(message: &str) -> (GuardLogType, u32) {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `solve`
[INFO] [stderr]  --> src/solutions/day5.rs:3:1
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub fn solve() {
[INFO] [stderr]   | ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `react_string`
[INFO] [stderr]   --> src/solutions/day5.rs:32:1
[INFO] [stderr]    |
[INFO] [stderr] 32 | fn react_string(line: Vec<u8>) -> Vec<u8> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `dist_to`
[INFO] [stderr]   --> src/solutions/day6.rs:22:5
[INFO] [stderr]    |
[INFO] [stderr] 22 |     fn dist_to(&self, other_x: u16, other_y: u16) -> u16 {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `solve`
[INFO] [stderr]   --> src/solutions/day6.rs:28:1
[INFO] [stderr]    |
[INFO] [stderr] 28 | pub fn solve() {
[INFO] [stderr]    | ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `parse_point`
[INFO] [stderr]    --> src/solutions/day6.rs:101:1
[INFO] [stderr]     |
[INFO] [stderr] 101 | fn parse_point(line: &str, index: u16) -> FillPoint {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `solve`
[INFO] [stderr]  --> src/solutions/day7.rs:6:1
[INFO] [stderr]   |
[INFO] [stderr] 6 | pub fn solve() {
[INFO] [stderr]   | ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `node_cost`
[INFO] [stderr]    --> src/solutions/day7.rs:128:1
[INFO] [stderr]     |
[INFO] [stderr] 128 | fn node_cost(node: &char) -> u16 {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `solve`
[INFO] [stderr]  --> src/solutions/day8.rs:6:1
[INFO] [stderr]   |
[INFO] [stderr] 6 | pub fn solve() {
[INFO] [stderr]   | ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `sum_metadata_rec`
[INFO] [stderr]   --> src/solutions/day8.rs:25:1
[INFO] [stderr]    |
[INFO] [stderr] 25 | fn sum_metadata_rec(tree_data: &mut VecDeque<u32>) -> u32 {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `get_node_value`
[INFO] [stderr]   --> src/solutions/day8.rs:39:1
[INFO] [stderr]    |
[INFO] [stderr] 39 | fn get_node_value(tree_data: &mut VecDeque<u32>) -> u32 {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `solve`
[INFO] [stderr]   --> src/solutions/day9.rs:15:1
[INFO] [stderr]    |
[INFO] [stderr] 15 | pub fn solve() {
[INFO] [stderr]    | ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: static variable `reg_pattern` should have an upper case name
[INFO] [stderr]   --> src/solutions/day16.rs:92:20
[INFO] [stderr]    |
[INFO] [stderr] 92 |         static ref reg_pattern: Regex =
[INFO] [stderr]    |                    ^^^^^^^^^^^ help: convert the identifier to upper case: `REG_PATTERN`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(non_upper_case_globals)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: static variable `log_pattern` should have an upper case name
[INFO] [stderr]    --> src/solutions/day4.rs:104:20
[INFO] [stderr]     |
[INFO] [stderr] 104 |         static ref log_pattern: Regex = Regex::new(r"^\[(.*?)\] (.*)$").unwrap();
[INFO] [stderr]     |                    ^^^^^^^^^^^ help: convert the identifier to upper case: `LOG_PATTERN`
[INFO] [stderr] 
[INFO] [stderr] warning: static variable `message_pattern` should have an upper case name
[INFO] [stderr]    --> src/solutions/day4.rs:121:24
[INFO] [stderr]     |
[INFO] [stderr] 121 |             static ref message_pattern: Regex = Regex::new(r"Guard #(\d+) begins").unwrap();
[INFO] [stderr]     |                        ^^^^^^^^^^^^^^^ help: convert the identifier to upper case: `MESSAGE_PATTERN`
[INFO] [stderr] 
[INFO] [stderr] warning: static variable `point_pattern` should have an upper case name
[INFO] [stderr]    --> src/solutions/day6.rs:103:20
[INFO] [stderr]     |
[INFO] [stderr] 103 |         static ref point_pattern: Regex = Regex::new(r"^(\d+), (\d+)$").unwrap();
[INFO] [stderr]     |                    ^^^^^^^^^^^^^ help: convert the identifier to upper case: `POINT_PATTERN`
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `solve`
[INFO] [stderr]  --> src/solutions/day1.rs:3:1
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub fn solve() {
[INFO] [stderr]   | ^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Point`
[INFO] [stderr]  --> src/solutions/day10.rs:4:1
[INFO] [stderr]   |
[INFO] [stderr] 4 | struct Point(i32, i32);
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `PointWithVelocity`
[INFO] [stderr]  --> src/solutions/day10.rs:6:1
[INFO] [stderr]   |
[INFO] [stderr] 6 | struct PointWithVelocity {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `solve`
[INFO] [stderr]   --> src/solutions/day10.rs:11:1
[INFO] [stderr]    |
[INFO] [stderr] 11 | pub fn solve() {
[INFO] [stderr]    | ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `print_point_section`
[INFO] [stderr]    --> src/solutions/day10.rs:77:1
[INFO] [stderr]     |
[INFO] [stderr] 77  | / fn print_point_section(
[INFO] [stderr] 78  | |     min_x: i32,
[INFO] [stderr] 79  | |     min_y: i32,
[INFO] [stderr] 80  | |     max_x: i32,
[INFO] [stderr] ...   |
[INFO] [stderr] 99  | |     }
[INFO] [stderr] 100 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `solve`
[INFO] [stderr]  --> src/solutions/day11.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub fn solve() {
[INFO] [stderr]   | ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `power_level`
[INFO] [stderr]   --> src/solutions/day11.rs:85:1
[INFO] [stderr]    |
[INFO] [stderr] 85 | fn power_level(x: i32, y: i32, serial_number: i32) -> i32 {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `print_grid`
[INFO] [stderr]   --> src/solutions/day11.rs:95:1
[INFO] [stderr]    |
[INFO] [stderr] 95 | fn print_grid(grid: &Vec<Vec<i32>>) {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `solve`
[INFO] [stderr]  --> src/solutions/day12.rs:3:1
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub fn solve() {
[INFO] [stderr]   | ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `parse_rule`
[INFO] [stderr]   --> src/solutions/day12.rs:80:1
[INFO] [stderr]    |
[INFO] [stderr] 80 | fn parse_rule(line: &String) -> ((bool, bool, bool, bool, bool), bool) {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `print_result`
[INFO] [stderr]   --> src/solutions/day12.rs:96:1
[INFO] [stderr]    |
[INFO] [stderr] 96 | fn print_result(next_config: &Vec<&bool>, zero_offset: i64, generation: i64) {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `solve`
[INFO] [stderr]  --> src/solutions/day13.rs:4:1
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub fn solve() {
[INFO] [stderr]   | ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `parse_grid`
[INFO] [stderr]   --> src/solutions/day13.rs:50:1
[INFO] [stderr]    |
[INFO] [stderr] 50 | fn parse_grid(lines: &Vec<String>) -> Vec<Vec<RailType>> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `initiate_carts`
[INFO] [stderr]   --> src/solutions/day13.rs:71:1
[INFO] [stderr]    |
[INFO] [stderr] 71 | fn initiate_carts(lines: &Vec<String>) -> Vec<Cart> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `move_cart_on_grid`
[INFO] [stderr]    --> src/solutions/day13.rs:112:1
[INFO] [stderr]     |
[INFO] [stderr] 112 | fn move_cart_on_grid(cart: &mut Cart, grid: &Vec<Vec<RailType>>) {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Up`
[INFO] [stderr]    --> src/solutions/day13.rs:139:5
[INFO] [stderr]     |
[INFO] [stderr] 139 |     Up,
[INFO] [stderr]     |     ^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Down`
[INFO] [stderr]    --> src/solutions/day13.rs:140:5
[INFO] [stderr]     |
[INFO] [stderr] 140 |     Down,
[INFO] [stderr]     |     ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Left`
[INFO] [stderr]    --> src/solutions/day13.rs:141:5
[INFO] [stderr]     |
[INFO] [stderr] 141 |     Left,
[INFO] [stderr]     |     ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Right`
[INFO] [stderr]    --> src/solutions/day13.rs:142:5
[INFO] [stderr]     |
[INFO] [stderr] 142 |     Right,
[INFO] [stderr]     |     ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `as_vector`
[INFO] [stderr]    --> src/solutions/day13.rs:146:5
[INFO] [stderr]     |
[INFO] [stderr] 146 |     fn as_vector(&self) -> Point {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `is_horizontal`
[INFO] [stderr]    --> src/solutions/day13.rs:155:5
[INFO] [stderr]     |
[INFO] [stderr] 155 |     fn is_horizontal(&self) -> bool {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `is_vertical`
[INFO] [stderr]    --> src/solutions/day13.rs:159:5
[INFO] [stderr]     |
[INFO] [stderr] 159 |     fn is_vertical(&self) -> bool {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `turn_corner`
[INFO] [stderr]    --> src/solutions/day13.rs:163:5
[INFO] [stderr]     |
[INFO] [stderr] 163 |     fn turn_corner(&self, c_type: char) -> Direction {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `turn_left`
[INFO] [stderr]    --> src/solutions/day13.rs:176:5
[INFO] [stderr]     |
[INFO] [stderr] 176 |     fn turn_left(&self) -> Direction {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `turn_right`
[INFO] [stderr]    --> src/solutions/day13.rs:185:5
[INFO] [stderr]     |
[INFO] [stderr] 185 |     fn turn_right(&self) -> Direction {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Cart`
[INFO] [stderr]    --> src/solutions/day13.rs:196:1
[INFO] [stderr]     |
[INFO] [stderr] 196 | struct Cart {
[INFO] [stderr]     | ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `RailType`
[INFO] [stderr]    --> src/solutions/day13.rs:203:1
[INFO] [stderr]     |
[INFO] [stderr] 203 | enum RailType {
[INFO] [stderr]     | ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `solve`
[INFO] [stderr]  --> src/solutions/day14.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub fn solve() {
[INFO] [stderr]   | ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `build_recipes_to`
[INFO] [stderr]   --> src/solutions/day14.rs:40:1
[INFO] [stderr]    |
[INFO] [stderr] 40 | / fn build_recipes_to(
[INFO] [stderr] 41 | |     recipes: &mut Vec<u8>,
[INFO] [stderr] 42 | |     target_count: usize,
[INFO] [stderr] 43 | |     elf_positions: &mut (usize, usize),
[INFO] [stderr] ...  |
[INFO] [stderr] 66 | |     elf_positions.1 = second_elf;
[INFO] [stderr] 67 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `solve`
[INFO] [stderr]  --> src/solutions/day2.rs:3:1
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub fn solve() {
[INFO] [stderr]   | ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `solve`
[INFO] [stderr]  --> src/solutions/day3.rs:4:1
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub fn solve() {
[INFO] [stderr]   | ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `GuardStart`
[INFO] [stderr]  --> src/solutions/day4.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 |     GuardStart,
[INFO] [stderr]   |     ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `GuardSleep`
[INFO] [stderr]  --> src/solutions/day4.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 |     GuardSleep,
[INFO] [stderr]   |     ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `GuardWake`
[INFO] [stderr]  --> src/solutions/day4.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 |     GuardWake,
[INFO] [stderr]   |     ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `GuardLog`
[INFO] [stderr]   --> src/solutions/day4.rs:13:1
[INFO] [stderr]    |
[INFO] [stderr] 13 | struct GuardLog {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `solve`
[INFO] [stderr]   --> src/solutions/day4.rs:19:1
[INFO] [stderr]    |
[INFO] [stderr] 19 | pub fn solve() {
[INFO] [stderr]    | ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `parse_log_from_line`
[INFO] [stderr]    --> src/solutions/day4.rs:102:1
[INFO] [stderr]     |
[INFO] [stderr] 102 | fn parse_log_from_line(line: &str) -> GuardLog {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `parse_log_type_from_message`
[INFO] [stderr]    --> src/solutions/day4.rs:118:1
[INFO] [stderr]     |
[INFO] [stderr] 118 | fn parse_log_type_from_message(message: &str) -> (GuardLogType, u32) {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `solve`
[INFO] [stderr]  --> src/solutions/day5.rs:3:1
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub fn solve() {
[INFO] [stderr]   | ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `react_string`
[INFO] [stderr]   --> src/solutions/day5.rs:32:1
[INFO] [stderr]    |
[INFO] [stderr] 32 | fn react_string(line: Vec<u8>) -> Vec<u8> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `dist_to`
[INFO] [stderr]   --> src/solutions/day6.rs:22:5
[INFO] [stderr]    |
[INFO] [stderr] 22 |     fn dist_to(&self, other_x: u16, other_y: u16) -> u16 {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `solve`
[INFO] [stderr]   --> src/solutions/day6.rs:28:1
[INFO] [stderr]    |
[INFO] [stderr] 28 | pub fn solve() {
[INFO] [stderr]    | ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `parse_point`
[INFO] [stderr]    --> src/solutions/day6.rs:101:1
[INFO] [stderr]     |
[INFO] [stderr] 101 | fn parse_point(line: &str, index: u16) -> FillPoint {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `solve`
[INFO] [stderr]  --> src/solutions/day7.rs:6:1
[INFO] [stderr]   |
[INFO] [stderr] 6 | pub fn solve() {
[INFO] [stderr]   | ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `node_cost`
[INFO] [stderr]    --> src/solutions/day7.rs:128:1
[INFO] [stderr]     |
[INFO] [stderr] 128 | fn node_cost(node: &char) -> u16 {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `solve`
[INFO] [stderr]  --> src/solutions/day8.rs:6:1
[INFO] [stderr]   |
[INFO] [stderr] 6 | pub fn solve() {
[INFO] [stderr]   | ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `sum_metadata_rec`
[INFO] [stderr]   --> src/solutions/day8.rs:25:1
[INFO] [stderr]    |
[INFO] [stderr] 25 | fn sum_metadata_rec(tree_data: &mut VecDeque<u32>) -> u32 {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `get_node_value`
[INFO] [stderr]   --> src/solutions/day8.rs:39:1
[INFO] [stderr]    |
[INFO] [stderr] 39 | fn get_node_value(tree_data: &mut VecDeque<u32>) -> u32 {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `solve`
[INFO] [stderr]   --> src/solutions/day9.rs:15:1
[INFO] [stderr]    |
[INFO] [stderr] 15 | pub fn solve() {
[INFO] [stderr]    | ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: static variable `reg_pattern` should have an upper case name
[INFO] [stderr]   --> src/solutions/day16.rs:92:20
[INFO] [stderr]    |
[INFO] [stderr] 92 |         static ref reg_pattern: Regex =
[INFO] [stderr]    |                    ^^^^^^^^^^^ help: convert the identifier to upper case: `REG_PATTERN`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(non_upper_case_globals)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: static variable `log_pattern` should have an upper case name
[INFO] [stderr]    --> src/solutions/day4.rs:104:20
[INFO] [stderr]     |
[INFO] [stderr] 104 |         static ref log_pattern: Regex = Regex::new(r"^\[(.*?)\] (.*)$").unwrap();
[INFO] [stderr]     |                    ^^^^^^^^^^^ help: convert the identifier to upper case: `LOG_PATTERN`
[INFO] [stderr] 
[INFO] [stderr] warning: static variable `message_pattern` should have an upper case name
[INFO] [stderr]    --> src/solutions/day4.rs:121:24
[INFO] [stderr]     |
[INFO] [stderr] 121 |             static ref message_pattern: Regex = Regex::new(r"Guard #(\d+) begins").unwrap();
[INFO] [stderr]     |                        ^^^^^^^^^^^^^^^ help: convert the identifier to upper case: `MESSAGE_PATTERN`
[INFO] [stderr] 
[INFO] [stderr] warning: static variable `point_pattern` should have an upper case name
[INFO] [stderr]    --> src/solutions/day6.rs:103:20
[INFO] [stderr]     |
[INFO] [stderr] 103 |         static ref point_pattern: Regex = Regex::new(r"^(\d+), (\d+)$").unwrap();
[INFO] [stderr]     |                    ^^^^^^^^^^^^^ help: convert the identifier to upper case: `POINT_PATTERN`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.12s
[INFO] running `"docker" "inspect" "58a55f320ddbe2e372f5ad01f7bcab2638962f6053de5ffdab1625f11f03dd68"`
[INFO] running `"docker" "rm" "-f" "58a55f320ddbe2e372f5ad01f7bcab2638962f6053de5ffdab1625f11f03dd68"`
[INFO] [stdout] 58a55f320ddbe2e372f5ad01f7bcab2638962f6053de5ffdab1625f11f03dd68