[INFO] updating cached repository shaurya0/advent_of_code_2018
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/shaurya0/advent_of_code_2018
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/shaurya0/advent_of_code_2018" "work/ex/pr-60162/sources/master#a850a426491e14186af2250549bf41256b5938d2/gh/shaurya0/advent_of_code_2018"`
[INFO] [stderr] Cloning into 'work/ex/pr-60162/sources/master#a850a426491e14186af2250549bf41256b5938d2/gh/shaurya0/advent_of_code_2018'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/shaurya0/advent_of_code_2018" "work/ex/pr-60162/sources/try#06a150c7d11500b41499224f165e9de1de096768/gh/shaurya0/advent_of_code_2018"`
[INFO] [stderr] Cloning into 'work/ex/pr-60162/sources/try#06a150c7d11500b41499224f165e9de1de096768/gh/shaurya0/advent_of_code_2018'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] b2cd7482a197f2a37faa3166543bfdf70e7cfd72
[INFO] sha for GitHub repo shaurya0/advent_of_code_2018: b2cd7482a197f2a37faa3166543bfdf70e7cfd72
[INFO] validating manifest of shaurya0/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 shaurya0/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 shaurya0/advent_of_code_2018
[INFO] finished frobbing shaurya0/advent_of_code_2018
[INFO] frobbed toml for shaurya0/advent_of_code_2018 written to work/ex/pr-60162/sources/master#a850a426491e14186af2250549bf41256b5938d2/gh/shaurya0/advent_of_code_2018/Cargo.toml
[INFO] started frobbing shaurya0/advent_of_code_2018
[INFO] finished frobbing shaurya0/advent_of_code_2018
[INFO] frobbed toml for shaurya0/advent_of_code_2018 written to work/ex/pr-60162/sources/try#06a150c7d11500b41499224f165e9de1de096768/gh/shaurya0/advent_of_code_2018/Cargo.toml
[INFO] crate shaurya0/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 shaurya0/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-1/master#a850a426491e14186af2250549bf41256b5938d2:/opt/crater/target:rw,Z" "-v" "/mnt/crater-raid/crater/work/ex/pr-60162/sources/master#a850a426491e14186af2250549bf41256b5938d2/gh/shaurya0/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] 0be8fac504719887591d71ddb7f9bf9814d9a9eeb4658d4332591e69c1f49c1c
[INFO] running `"docker" "start" "-a" "0be8fac504719887591d71ddb7f9bf9814d9a9eeb4658d4332591e69c1f49c1c"`
[INFO] [stderr]     Checking petgraph v0.4.13
[INFO] [stderr]     Checking memchr v2.1.2
[INFO] [stderr]     Checking chrono v0.4.6
[INFO] [stderr]     Checking aho-corasick v0.6.9
[INFO] [stderr]     Checking regex v1.1.0
[INFO] [stderr]     Checking advent_of_code v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `std::env`
[INFO] [stderr]  --> src/day11/day11.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::env;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `BufRead`, `BufReader`
[INFO] [stderr]  --> src/day11/day11.rs:2:15
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::io::{BufReader,BufRead};
[INFO] [stderr]   |               ^^^^^^^^^ ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::fs::File`
[INFO] [stderr]  --> src/day11/day11.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::fs::File;
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::path::Path`
[INFO] [stderr]  --> src/day11/day11.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::path::Path;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::error::Error`
[INFO] [stderr]  --> src/day11/day11.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::error::Error;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::slice::Iter`
[INFO] [stderr]  --> src/day16/day16.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use std::slice::Iter;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `thread`, `time`
[INFO] [stderr]  --> src/day16/day16.rs:7:11
[INFO] [stderr]   |
[INFO] [stderr] 7 | use std::{thread, time};
[INFO] [stderr]   |           ^^^^^^  ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around assigned value
[INFO] [stderr]   --> src/day16/day16.rs:96:32
[INFO] [stderr]    |
[INFO] [stderr] 96 |                 self.regs[c] = (a as i32);
[INFO] [stderr]    |                                ^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_parens)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Duration`, `NaiveDate`
[INFO] [stderr]  --> src/day4/day4.rs:8:29
[INFO] [stderr]   |
[INFO] [stderr] 8 | use chrono::{NaiveDateTime, NaiveDate, NaiveTime, Duration, Timelike};
[INFO] [stderr]   |                             ^^^^^^^^^             ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `get_grid_val`
[INFO] [stderr]   --> src/day11/day11.rs:49:1
[INFO] [stderr]    |
[INFO] [stderr] 49 | fn get_grid_val(grid: &[[i32; NSS]; NSS], x: usize, y: usize) -> i32 {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `NX`
[INFO] [stderr]   --> src/day10/day10.rs:10:1
[INFO] [stderr]    |
[INFO] [stderr] 10 | const NX: usize = 30;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `NY`
[INFO] [stderr]   --> src/day10/day10.rs:11:1
[INFO] [stderr]    |
[INFO] [stderr] 11 | const NY: usize = 20;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `X_OFFSET`
[INFO] [stderr]   --> src/day10/day10.rs:12:1
[INFO] [stderr]    |
[INFO] [stderr] 12 | const X_OFFSET: i32 = 10;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `Y_OFFSET`
[INFO] [stderr]   --> src/day10/day10.rs:13:1
[INFO] [stderr]    |
[INFO] [stderr] 13 | const Y_OFFSET: i32 = 6;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `print_grid`
[INFO] [stderr]   --> src/day10/day10.rs:25:1
[INFO] [stderr]    |
[INFO] [stderr] 25 | fn print_grid(grid: &[[char; NX]; NY])  {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `upate_grid`
[INFO] [stderr]   --> src/day10/day10.rs:34:1
[INFO] [stderr]    |
[INFO] [stderr] 34 | fn upate_grid(grid: &mut [[char; NX]; NY], lights: &mut Vec<Light>) {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::slice::Iter`
[INFO] [stderr]  --> src/day16/day16.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use std::slice::Iter;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `thread`, `time`
[INFO] [stderr]  --> src/day16/day16.rs:7:11
[INFO] [stderr]   |
[INFO] [stderr] 7 | use std::{thread, time};
[INFO] [stderr]   |           ^^^^^^  ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around assigned value
[INFO] [stderr]   --> src/day16/day16.rs:96:32
[INFO] [stderr]    |
[INFO] [stderr] 96 |                 self.regs[c] = (a as i32);
[INFO] [stderr]    |                                ^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_parens)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `guard_sleep_time`
[INFO] [stderr]   --> src/day4/day4.rs:97:13
[INFO] [stderr]    |
[INFO] [stderr] 97 |     let mut guard_sleep_time: HashMap<u32, i64>
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_guard_sleep_time`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `timestamp`
[INFO] [stderr]    --> src/day4/day4.rs:115:17
[INFO] [stderr]     |
[INFO] [stderr] 115 |             let timestamp = message.timestamp;
[INFO] [stderr]     |                 ^^^^^^^^^ help: consider prefixing with an underscore: `_timestamp`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `line_iter`
[INFO] [stderr]    --> src/day16/day16.rs:165:9
[INFO] [stderr]     |
[INFO] [stderr] 165 |     let line_iter = lines.iter();
[INFO] [stderr]     |         ^^^^^^^^^ help: consider prefixing with an underscore: `_line_iter`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable `count` is assigned to, but never used
[INFO] [stderr]    --> src/day16/day16.rs:166:13
[INFO] [stderr]     |
[INFO] [stderr] 166 |     let mut count = 0;
[INFO] [stderr]     |             ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: consider using `_count` instead
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/day7/day7.rs:83:13
[INFO] [stderr]    |
[INFO] [stderr] 83 |         let mut outgoing = graph.neighbors_directed(root, Direction::Outgoing);
[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/day4/day4.rs:97:9
[INFO] [stderr]    |
[INFO] [stderr] 97 |     let mut guard_sleep_time: HashMap<u32, i64>
[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: struct is never constructed: `TimestampedMessage`
[INFO] [stderr]   --> src/day4/day4.rs:26:1
[INFO] [stderr]    |
[INFO] [stderr] 26 | struct TimestampedMessage {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Duration`, `NaiveDate`
[INFO] [stderr]  --> src/day4/day4.rs:8:29
[INFO] [stderr]   |
[INFO] [stderr] 8 | use chrono::{NaiveDateTime, NaiveDate, NaiveTime, Duration, Timelike};
[INFO] [stderr]   |                             ^^^^^^^^^             ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `NX`
[INFO] [stderr]   --> src/day10/day10.rs:10:1
[INFO] [stderr]    |
[INFO] [stderr] 10 | const NX: usize = 30;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `NY`
[INFO] [stderr]   --> src/day10/day10.rs:11:1
[INFO] [stderr]    |
[INFO] [stderr] 11 | const NY: usize = 20;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `X_OFFSET`
[INFO] [stderr]   --> src/day10/day10.rs:12:1
[INFO] [stderr]    |
[INFO] [stderr] 12 | const X_OFFSET: i32 = 10;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `Y_OFFSET`
[INFO] [stderr]   --> src/day10/day10.rs:13:1
[INFO] [stderr]    |
[INFO] [stderr] 13 | const Y_OFFSET: i32 = 6;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `print_grid`
[INFO] [stderr]   --> src/day10/day10.rs:25:1
[INFO] [stderr]    |
[INFO] [stderr] 25 | fn print_grid(grid: &[[char; NX]; NY])  {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `upate_grid`
[INFO] [stderr]   --> src/day10/day10.rs:34:1
[INFO] [stderr]    |
[INFO] [stderr] 34 | fn upate_grid(grid: &mut [[char; NX]; NY], lights: &mut Vec<Light>) {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `guard_sleep_time`
[INFO] [stderr]   --> src/day4/day4.rs:97:13
[INFO] [stderr]    |
[INFO] [stderr] 97 |     let mut guard_sleep_time: HashMap<u32, i64>
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_guard_sleep_time`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `timestamp`
[INFO] [stderr]    --> src/day4/day4.rs:115:17
[INFO] [stderr]     |
[INFO] [stderr] 115 |             let timestamp = message.timestamp;
[INFO] [stderr]     |                 ^^^^^^^^^ help: consider prefixing with an underscore: `_timestamp`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `line_iter`
[INFO] [stderr]    --> src/day16/day16.rs:165:9
[INFO] [stderr]     |
[INFO] [stderr] 165 |     let line_iter = lines.iter();
[INFO] [stderr]     |         ^^^^^^^^^ help: consider prefixing with an underscore: `_line_iter`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable `count` is assigned to, but never used
[INFO] [stderr]    --> src/day16/day16.rs:166:13
[INFO] [stderr]     |
[INFO] [stderr] 166 |     let mut count = 0;
[INFO] [stderr]     |             ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: consider using `_count` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::env`
[INFO] [stderr]  --> src/day11/day11.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::env;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `BufRead`, `BufReader`
[INFO] [stderr]  --> src/day11/day11.rs:2:15
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::io::{BufReader,BufRead};
[INFO] [stderr]   |               ^^^^^^^^^ ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::fs::File`
[INFO] [stderr]  --> src/day11/day11.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::fs::File;
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::path::Path`
[INFO] [stderr]  --> src/day11/day11.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::path::Path;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::error::Error`
[INFO] [stderr]  --> src/day11/day11.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::error::Error;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/day4/day4.rs:97:9
[INFO] [stderr]    |
[INFO] [stderr] 97 |     let mut guard_sleep_time: HashMap<u32, i64>
[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: struct is never constructed: `TimestampedMessage`
[INFO] [stderr]   --> src/day4/day4.rs:26:1
[INFO] [stderr]    |
[INFO] [stderr] 26 | struct TimestampedMessage {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `get_grid_val`
[INFO] [stderr]   --> src/day11/day11.rs:49:1
[INFO] [stderr]    |
[INFO] [stderr] 49 | fn get_grid_val(grid: &[[i32; NSS]; NSS], x: usize, y: usize) -> i32 {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `count`
[INFO] [stderr]   --> src/day3/day3.rs:86:22
[INFO] [stderr]    |
[INFO] [stderr] 86 |                 Some(count) => unclaimed = true,
[INFO] [stderr]    |                      ^^^^^ help: consider prefixing with an underscore: `_count`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `count`
[INFO] [stderr]    --> src/day3/day3.rs:129:23
[INFO] [stderr]     |
[INFO] [stderr] 129 |                 Some(&count) => print!("#"),
[INFO] [stderr]     |                       ^^^^^ help: consider prefixing with an underscore: `_count`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `count`
[INFO] [stderr]   --> src/day3/day3.rs:86:22
[INFO] [stderr]    |
[INFO] [stderr] 86 |                 Some(count) => unclaimed = true,
[INFO] [stderr]    |                      ^^^^^ help: consider prefixing with an underscore: `_count`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `count`
[INFO] [stderr]    --> src/day3/day3.rs:129:23
[INFO] [stderr]     |
[INFO] [stderr] 129 |                 Some(&count) => print!("#"),
[INFO] [stderr]     |                       ^^^^^ help: consider prefixing with an underscore: `_count`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/day7/day7.rs:83:13
[INFO] [stderr]    |
[INFO] [stderr] 83 |         let mut outgoing = graph.neighbors_directed(root, Direction::Outgoing);
[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: function is never used: `draw_grid`
[INFO] [stderr]    --> src/day3/day3.rs:120:1
[INFO] [stderr]     |
[INFO] [stderr] 120 | fn draw_grid(grid_description: &HashMap<Point, i32>, nx: u32, ny: u32){
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `draw_grid`
[INFO] [stderr]    --> src/day3/day3.rs:120:1
[INFO] [stderr]     |
[INFO] [stderr] 120 | fn draw_grid(grid_description: &HashMap<Point, i32>, nx: u32, ny: u32){
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.29s
[INFO] running `"docker" "inspect" "0be8fac504719887591d71ddb7f9bf9814d9a9eeb4658d4332591e69c1f49c1c"`
[INFO] running `"docker" "rm" "-f" "0be8fac504719887591d71ddb7f9bf9814d9a9eeb4658d4332591e69c1f49c1c"`
[INFO] [stdout] 0be8fac504719887591d71ddb7f9bf9814d9a9eeb4658d4332591e69c1f49c1c