[INFO] updating cached repository zeddidragon/Advent-of-Code-2018
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/zeddidragon/Advent-of-Code-2018
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/zeddidragon/Advent-of-Code-2018" "work/ex/clippy-test-run/sources/stable/gh/zeddidragon/Advent-of-Code-2018"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable/gh/zeddidragon/Advent-of-Code-2018'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/zeddidragon/Advent-of-Code-2018" "work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/zeddidragon/Advent-of-Code-2018"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/zeddidragon/Advent-of-Code-2018'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 7097cd001681a97884037ce5033e2201cd008596
[INFO] sha for GitHub repo zeddidragon/Advent-of-Code-2018: 7097cd001681a97884037ce5033e2201cd008596
[INFO] validating manifest of zeddidragon/Advent-of-Code-2018 on toolchain stable
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of zeddidragon/Advent-of-Code-2018 on toolchain stable+rustflags=-Dclippy::into_iter_on_array
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing zeddidragon/Advent-of-Code-2018
[INFO] finished frobbing zeddidragon/Advent-of-Code-2018
[INFO] frobbed toml for zeddidragon/Advent-of-Code-2018 written to work/ex/clippy-test-run/sources/stable/gh/zeddidragon/Advent-of-Code-2018/Cargo.toml
[INFO] started frobbing zeddidragon/Advent-of-Code-2018
[INFO] finished frobbing zeddidragon/Advent-of-Code-2018
[INFO] frobbed toml for zeddidragon/Advent-of-Code-2018 written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/zeddidragon/Advent-of-Code-2018/Cargo.toml
[INFO] crate zeddidragon/Advent-of-Code-2018 has a lockfile. skipping
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] linting zeddidragon/Advent-of-Code-2018 against stable for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-2/stable:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable/gh/zeddidragon/Advent-of-Code-2018:/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" "+stable" "clippy" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 8ddf1c32aa331a84f012c723f204d1cdf822ec14ca192e2aeae4ab6ec7225cad
[INFO] running `"docker" "start" "-a" "8ddf1c32aa331a84f012c723f204d1cdf822ec14ca192e2aeae4ab6ec7225cad"`
[INFO] [stderr]    Compiling regex v1.1.0
[INFO] [stderr]     Checking regex-syntax v0.6.4
[INFO] [stderr]     Checking advent_of_code_2018 v0.0.1 (/opt/crater/workdir)
[INFO] [stderr] warning: using `println!("")`
[INFO] [stderr]   --> src/day02.rs:55:17
[INFO] [stderr]    |
[INFO] [stderr] 55 |                 println!("");
[INFO] [stderr]    |                 ^^^^^^^^^^^^ help: replace it with: `println!()`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::println_empty_string)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#println_empty_string
[INFO] [stderr] 
[INFO] [stderr] warning: using `println!("")`
[INFO] [stderr]   --> src/day02.rs:55:17
[INFO] [stderr]    |
[INFO] [stderr] 55 |                 println!("");
[INFO] [stderr]    |                 ^^^^^^^^^^^^ help: replace it with: `println!()`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::println_empty_string)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#println_empty_string
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/day03.rs:87:9
[INFO] [stderr]    |
[INFO] [stderr] 87 |         id: id,
[INFO] [stderr]    |         ^^^^^^ help: replace it with: `id`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::redundant_field_names)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/day03.rs:88:9
[INFO] [stderr]    |
[INFO] [stderr] 88 |         x: x,
[INFO] [stderr]    |         ^^^^ help: replace it with: `x`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/day03.rs:89:9
[INFO] [stderr]    |
[INFO] [stderr] 89 |         y: y,
[INFO] [stderr]    |         ^^^^ help: replace it with: `y`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/day03.rs:90:9
[INFO] [stderr]    |
[INFO] [stderr] 90 |         w: w,
[INFO] [stderr]    |         ^^^^ help: replace it with: `w`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/day03.rs:91:9
[INFO] [stderr]    |
[INFO] [stderr] 91 |         h: h,
[INFO] [stderr]    |         ^^^^ help: replace it with: `h`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]    --> src/day04.rs:103:13
[INFO] [stderr]     |
[INFO] [stderr] 103 |             guard: guard,
[INFO] [stderr]     |             ^^^^^^^^^^^^ help: replace it with: `guard`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/day06.rs:52:9
[INFO] [stderr]    |
[INFO] [stderr] 52 |         total_distance: total_distance,
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `total_distance`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/day03.rs:87:9
[INFO] [stderr]    |
[INFO] [stderr] 87 |         id: id,
[INFO] [stderr]    |         ^^^^^^ help: replace it with: `id`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::redundant_field_names)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/day03.rs:88:9
[INFO] [stderr]    |
[INFO] [stderr] 88 |         x: x,
[INFO] [stderr]    |         ^^^^ help: replace it with: `x`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/day03.rs:89:9
[INFO] [stderr]    |
[INFO] [stderr] 89 |         y: y,
[INFO] [stderr]    |         ^^^^ help: replace it with: `y`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/day03.rs:90:9
[INFO] [stderr]    |
[INFO] [stderr] 90 |         w: w,
[INFO] [stderr]    |         ^^^^ help: replace it with: `w`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/day03.rs:91:9
[INFO] [stderr]    |
[INFO] [stderr] 91 |         h: h,
[INFO] [stderr]    |         ^^^^ help: replace it with: `h`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]    --> src/day04.rs:103:13
[INFO] [stderr]     |
[INFO] [stderr] 103 |             guard: guard,
[INFO] [stderr]     |             ^^^^^^^^^^^^ help: replace it with: `guard`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/day06.rs:52:9
[INFO] [stderr]    |
[INFO] [stderr] 52 |         total_distance: total_distance,
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `total_distance`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded `()`
[INFO] [stderr]   --> src/day02.rs:56:24
[INFO] [stderr]    |
[INFO] [stderr] 56 |                 return ();
[INFO] [stderr]    |                        ^^ help: remove the `()`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::unused_unit)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_unit
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded `()`
[INFO] [stderr]   --> src/day03.rs:51:20
[INFO] [stderr]    |
[INFO] [stderr] 51 |             return ();
[INFO] [stderr]    |                    ^^ help: remove the `()`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_unit
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/day03.rs:86:5
[INFO] [stderr]    |
[INFO] [stderr] 86 | /     return Claim {
[INFO] [stderr] 87 | |         id: id,
[INFO] [stderr] 88 | |         x: x,
[INFO] [stderr] 89 | |         y: y,
[INFO] [stderr] 90 | |         w: w,
[INFO] [stderr] 91 | |         h: h,
[INFO] [stderr] 92 | |     };
[INFO] [stderr]    | |______^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::needless_return)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] help: remove `return` as shown
[INFO] [stderr]    |
[INFO] [stderr] 86 |     Claim {
[INFO] [stderr] 87 |         id: id,
[INFO] [stderr] 88 |         x: x,
[INFO] [stderr] 89 |         y: y,
[INFO] [stderr] 90 |         w: w,
[INFO] [stderr] 91 |         h: h,
[INFO] [stderr]  ...
[INFO] [stderr] 
[INFO] [stderr] warning: digits grouped inconsistently by underscores
[INFO] [stderr]    --> src/day03.rs:103:26
[INFO] [stderr]     |
[INFO] [stderr] 103 |     let mut grid : [u16; 1000_000] = [0; 1000_000];
[INFO] [stderr]     |                          ^^^^^^^^ help: consider: `1_000_000`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::inconsistent_digit_grouping)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#inconsistent_digit_grouping
[INFO] [stderr] 
[INFO] [stderr] warning: digits grouped inconsistently by underscores
[INFO] [stderr]    --> src/day03.rs:103:42
[INFO] [stderr]     |
[INFO] [stderr] 103 |     let mut grid : [u16; 1000_000] = [0; 1000_000];
[INFO] [stderr]     |                                          ^^^^^^^^ help: consider: `1_000_000`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#inconsistent_digit_grouping
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/day04.rs:18:9
[INFO] [stderr]    |
[INFO] [stderr] 18 | /         return
[INFO] [stderr] 19 | |             (self.minute as u64) +
[INFO] [stderr] 20 | |             (self.hour as u64) * 60 +
[INFO] [stderr] 21 | |             (self.day as u64) * 60 * 24 +
[INFO] [stderr] 22 | |             (self.month as u64) * 60 * 24 * 31 +
[INFO] [stderr] 23 | |             (self.year as u64 - 1500) * 60 * 24 * 31 * 366;
[INFO] [stderr]    | |___________________________________________________________^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] help: remove `return` as shown
[INFO] [stderr]    |
[INFO] [stderr] 18 |         (self.minute as u64) +
[INFO] [stderr] 19 |             (self.hour as u64) * 60 +
[INFO] [stderr] 20 |             (self.day as u64) * 60 * 24 +
[INFO] [stderr] 21 |             (self.month as u64) * 60 * 24 * 31 +
[INFO] [stderr] 22 |             (self.year as u64 - 1500) * 60 * 24 * 31 * 366
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/day04.rs:84:5
[INFO] [stderr]     |
[INFO] [stderr] 84  | /     return input.lines().map(|l| {
[INFO] [stderr] 85  | |         let line = &l.unwrap();
[INFO] [stderr] 86  | |         let guard;
[INFO] [stderr] 87  | |
[INFO] [stderr] ...   |
[INFO] [stderr] 110 | |     })
[INFO] [stderr] 111 | |         .collect();
[INFO] [stderr]     | |___________________^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] help: remove `return` as shown
[INFO] [stderr]     |
[INFO] [stderr] 84  |     input.lines().map(|l| {
[INFO] [stderr] 85  |         let line = &l.unwrap();
[INFO] [stderr] 86  |         let guard;
[INFO] [stderr] 87  | 
[INFO] [stderr] 88  |         if line.ends_with(SLEEP) {
[INFO] [stderr] 89  |             guard = -1
[INFO] [stderr]   ...
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/day04.rs:102:9
[INFO] [stderr]     |
[INFO] [stderr] 102 | /         return Entry {
[INFO] [stderr] 103 | |             guard: guard,
[INFO] [stderr] 104 | |             year: caps[1].parse().unwrap(),
[INFO] [stderr] 105 | |             month: caps[2].parse().unwrap(),
[INFO] [stderr] ...   |
[INFO] [stderr] 108 | |             minute: caps[5].parse().unwrap(),
[INFO] [stderr] 109 | |         };
[INFO] [stderr]     | |__________^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] help: remove `return` as shown
[INFO] [stderr]     |
[INFO] [stderr] 102 |         Entry {
[INFO] [stderr] 103 |             guard: guard,
[INFO] [stderr] 104 |             year: caps[1].parse().unwrap(),
[INFO] [stderr] 105 |             month: caps[2].parse().unwrap(),
[INFO] [stderr] 106 |             day: caps[3].parse().unwrap(),
[INFO] [stderr] 107 |             hour: caps[4].parse().unwrap(),
[INFO] [stderr]   ...
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/day04.rs:135:5
[INFO] [stderr]     |
[INFO] [stderr] 135 |     return sleep_minutes;
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `sleep_minutes`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/day05.rs:49:5
[INFO] [stderr]    |
[INFO] [stderr] 49 |     return size;
[INFO] [stderr]    |     ^^^^^^^^^^^^ help: remove `return` as shown: `size`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/day06.rs:50:5
[INFO] [stderr]    |
[INFO] [stderr] 50 | /     return DistanceResult {
[INFO] [stderr] 51 | |         closest_index: closest,
[INFO] [stderr] 52 | |         total_distance: total_distance,
[INFO] [stderr] 53 | |         tied: tied == closest_distance,
[INFO] [stderr] 54 | |         surrounded: left && right && above && below,
[INFO] [stderr] 55 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] help: remove `return` as shown
[INFO] [stderr]    |
[INFO] [stderr] 50 |     DistanceResult {
[INFO] [stderr] 51 |         closest_index: closest,
[INFO] [stderr] 52 |         total_distance: total_distance,
[INFO] [stderr] 53 |         tied: tied == closest_distance,
[INFO] [stderr] 54 |         surrounded: left && right && above && below,
[INFO] [stderr] 55 |     }
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/day06.rs:159:5
[INFO] [stderr]     |
[INFO] [stderr] 159 | /     return Point {
[INFO] [stderr] 160 | |         x: coords.next().unwrap(),
[INFO] [stderr] 161 | |         y: coords.next().unwrap(),
[INFO] [stderr] 162 | |     }
[INFO] [stderr]     | |_____^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] help: remove `return` as shown
[INFO] [stderr]     |
[INFO] [stderr] 159 |     Point {
[INFO] [stderr] 160 |         x: coords.next().unwrap(),
[INFO] [stderr] 161 |         y: coords.next().unwrap(),
[INFO] [stderr] 162 |     }
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/day09.rs:74:5
[INFO] [stderr]    |
[INFO] [stderr] 74 |     return max;
[INFO] [stderr]    |     ^^^^^^^^^^^ help: remove `return` as shown: `max`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]   --> src/day09.rs:80:32
[INFO] [stderr]    |
[INFO] [stderr] 80 |     assert_eq!(game(13, 7999), 146373);
[INFO] [stderr]    |                                ^^^^^^ help: consider: `146_373`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::unreadable_literal)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded `()`
[INFO] [stderr]   --> src/day02.rs:56:24
[INFO] [stderr]    |
[INFO] [stderr] 56 |                 return ();
[INFO] [stderr]    |                        ^^ help: remove the `()`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::unused_unit)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_unit
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded `()`
[INFO] [stderr]   --> src/day03.rs:51:20
[INFO] [stderr]    |
[INFO] [stderr] 51 |             return ();
[INFO] [stderr]    |                    ^^ help: remove the `()`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_unit
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/day03.rs:86:5
[INFO] [stderr]    |
[INFO] [stderr] 86 | /     return Claim {
[INFO] [stderr] 87 | |         id: id,
[INFO] [stderr] 88 | |         x: x,
[INFO] [stderr] 89 | |         y: y,
[INFO] [stderr] 90 | |         w: w,
[INFO] [stderr] 91 | |         h: h,
[INFO] [stderr] 92 | |     };
[INFO] [stderr]    | |______^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::needless_return)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] help: remove `return` as shown
[INFO] [stderr]    |
[INFO] [stderr] 86 |     Claim {
[INFO] [stderr] 87 |         id: id,
[INFO] [stderr] 88 |         x: x,
[INFO] [stderr] 89 |         y: y,
[INFO] [stderr] 90 |         w: w,
[INFO] [stderr] 91 |         h: h,
[INFO] [stderr]  ...
[INFO] [stderr] 
[INFO] [stderr] warning: digits grouped inconsistently by underscores
[INFO] [stderr]    --> src/day03.rs:103:26
[INFO] [stderr]     |
[INFO] [stderr] 103 |     let mut grid : [u16; 1000_000] = [0; 1000_000];
[INFO] [stderr]     |                          ^^^^^^^^ help: consider: `1_000_000`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::inconsistent_digit_grouping)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#inconsistent_digit_grouping
[INFO] [stderr] 
[INFO] [stderr] warning: digits grouped inconsistently by underscores
[INFO] [stderr]    --> src/day03.rs:103:42
[INFO] [stderr]     |
[INFO] [stderr] 103 |     let mut grid : [u16; 1000_000] = [0; 1000_000];
[INFO] [stderr]     |                                          ^^^^^^^^ help: consider: `1_000_000`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#inconsistent_digit_grouping
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/day04.rs:18:9
[INFO] [stderr]    |
[INFO] [stderr] 18 | /         return
[INFO] [stderr] 19 | |             (self.minute as u64) +
[INFO] [stderr] 20 | |             (self.hour as u64) * 60 +
[INFO] [stderr] 21 | |             (self.day as u64) * 60 * 24 +
[INFO] [stderr] 22 | |             (self.month as u64) * 60 * 24 * 31 +
[INFO] [stderr] 23 | |             (self.year as u64 - 1500) * 60 * 24 * 31 * 366;
[INFO] [stderr]    | |___________________________________________________________^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] help: remove `return` as shown
[INFO] [stderr]    |
[INFO] [stderr] 18 |         (self.minute as u64) +
[INFO] [stderr] 19 |             (self.hour as u64) * 60 +
[INFO] [stderr] 20 |             (self.day as u64) * 60 * 24 +
[INFO] [stderr] 21 |             (self.month as u64) * 60 * 24 * 31 +
[INFO] [stderr] 22 |             (self.year as u64 - 1500) * 60 * 24 * 31 * 366
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/day04.rs:84:5
[INFO] [stderr]     |
[INFO] [stderr] 84  | /     return input.lines().map(|l| {
[INFO] [stderr] 85  | |         let line = &l.unwrap();
[INFO] [stderr] 86  | |         let guard;
[INFO] [stderr] 87  | |
[INFO] [stderr] ...   |
[INFO] [stderr] 110 | |     })
[INFO] [stderr] 111 | |         .collect();
[INFO] [stderr]     | |___________________^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] help: remove `return` as shown
[INFO] [stderr]     |
[INFO] [stderr] 84  |     input.lines().map(|l| {
[INFO] [stderr] 85  |         let line = &l.unwrap();
[INFO] [stderr] 86  |         let guard;
[INFO] [stderr] 87  | 
[INFO] [stderr] 88  |         if line.ends_with(SLEEP) {
[INFO] [stderr] 89  |             guard = -1
[INFO] [stderr]   ...
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/day04.rs:102:9
[INFO] [stderr]     |
[INFO] [stderr] 102 | /         return Entry {
[INFO] [stderr] 103 | |             guard: guard,
[INFO] [stderr] 104 | |             year: caps[1].parse().unwrap(),
[INFO] [stderr] 105 | |             month: caps[2].parse().unwrap(),
[INFO] [stderr] ...   |
[INFO] [stderr] 108 | |             minute: caps[5].parse().unwrap(),
[INFO] [stderr] 109 | |         };
[INFO] [stderr]     | |__________^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] help: remove `return` as shown
[INFO] [stderr]     |
[INFO] [stderr] 102 |         Entry {
[INFO] [stderr] 103 |             guard: guard,
[INFO] [stderr] 104 |             year: caps[1].parse().unwrap(),
[INFO] [stderr] 105 |             month: caps[2].parse().unwrap(),
[INFO] [stderr] 106 |             day: caps[3].parse().unwrap(),
[INFO] [stderr] 107 |             hour: caps[4].parse().unwrap(),
[INFO] [stderr]   ...
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/day04.rs:135:5
[INFO] [stderr]     |
[INFO] [stderr] 135 |     return sleep_minutes;
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `sleep_minutes`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/day05.rs:49:5
[INFO] [stderr]    |
[INFO] [stderr] 49 |     return size;
[INFO] [stderr]    |     ^^^^^^^^^^^^ help: remove `return` as shown: `size`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/day06.rs:50:5
[INFO] [stderr]    |
[INFO] [stderr] 50 | /     return DistanceResult {
[INFO] [stderr] 51 | |         closest_index: closest,
[INFO] [stderr] 52 | |         total_distance: total_distance,
[INFO] [stderr] 53 | |         tied: tied == closest_distance,
[INFO] [stderr] 54 | |         surrounded: left && right && above && below,
[INFO] [stderr] 55 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] help: remove `return` as shown
[INFO] [stderr]    |
[INFO] [stderr] 50 |     DistanceResult {
[INFO] [stderr] 51 |         closest_index: closest,
[INFO] [stderr] 52 |         total_distance: total_distance,
[INFO] [stderr] 53 |         tied: tied == closest_distance,
[INFO] [stderr] 54 |         surrounded: left && right && above && below,
[INFO] [stderr] 55 |     }
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/day06.rs:159:5
[INFO] [stderr]     |
[INFO] [stderr] 159 | /     return Point {
[INFO] [stderr] 160 | |         x: coords.next().unwrap(),
[INFO] [stderr] 161 | |         y: coords.next().unwrap(),
[INFO] [stderr] 162 | |     }
[INFO] [stderr]     | |_____^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] help: remove `return` as shown
[INFO] [stderr]     |
[INFO] [stderr] 159 |     Point {
[INFO] [stderr] 160 |         x: coords.next().unwrap(),
[INFO] [stderr] 161 |         y: coords.next().unwrap(),
[INFO] [stderr] 162 |     }
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/day09.rs:74:5
[INFO] [stderr]    |
[INFO] [stderr] 74 |     return max;
[INFO] [stderr]    |     ^^^^^^^^^^^ help: remove `return` as shown: `max`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]   --> src/day09.rs:80:32
[INFO] [stderr]    |
[INFO] [stderr] 80 |     assert_eq!(game(13, 7999), 146373);
[INFO] [stderr]    |                                ^^^^^^ help: consider: `146_373`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::unreadable_literal)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]  --> src/day01.rs:5:19
[INFO] [stderr]   |
[INFO] [stderr] 5 | fn part1(changes: &Vec<i32>) {
[INFO] [stderr]   |                   ^^^^^^^^^ help: change this to: `&[i32]`
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(clippy::ptr_arg)] on by default
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]   --> src/day01.rs:13:19
[INFO] [stderr]    |
[INFO] [stderr] 13 | fn part2(changes: &Vec<i32>) {
[INFO] [stderr]    |                   ^^^^^^^^^ help: change this to: `&[i32]`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]  --> src/day02.rs:5:15
[INFO] [stderr]   |
[INFO] [stderr] 5 | fn part1(ids: &Vec<Vec<char>>) {
[INFO] [stderr]   |               ^^^^^^^^^^^^^^^ help: change this to: `&[Vec<char>]`
[INFO] [stderr]   |
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]   --> src/day02.rs:39:15
[INFO] [stderr]    |
[INFO] [stderr] 39 | fn part2(ids: &Vec<Vec<char>>) {
[INFO] [stderr]    |               ^^^^^^^^^^^^^^^ help: change this to: `&[Vec<char>]`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]   --> src/day03.rs:37:43
[INFO] [stderr]    |
[INFO] [stderr] 37 | fn part2(grid: &[u16; 1_000_000], claims: &Vec<Claim>) {
[INFO] [stderr]    |                                           ^^^^^^^^^^^ help: change this to: `&[Claim]`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr] warning: single-character string constant used as pattern
[INFO] [stderr]   --> src/day03.rs:68:28
[INFO] [stderr]    |
[INFO] [stderr] 68 |                     .split(",")
[INFO] [stderr]    |                            ^^^ help: try using a char instead: `','`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::single_char_pattern)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_char_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: single-character string constant used as pattern
[INFO] [stderr]   --> src/day03.rs:76:28
[INFO] [stderr]    |
[INFO] [stderr] 76 |                     .split("x")
[INFO] [stderr]    |                            ^^^ help: try using a char instead: `'x'`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_char_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to u64 may become silently lossy if types change
[INFO] [stderr]   --> src/day04.rs:19:13
[INFO] [stderr]    |
[INFO] [stderr] 19 |             (self.minute as u64) +
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^ help: try: `u64::from(self.minute)`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::cast_lossless)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to u64 may become silently lossy if types change
[INFO] [stderr]   --> src/day04.rs:20:13
[INFO] [stderr]    |
[INFO] [stderr] 20 |             (self.hour as u64) * 60 +
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^ help: try: `u64::from(self.hour)`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to u64 may become silently lossy if types change
[INFO] [stderr]   --> src/day04.rs:21:13
[INFO] [stderr]    |
[INFO] [stderr] 21 |             (self.day as u64) * 60 * 24 +
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^ help: try: `u64::from(self.day)`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to u64 may become silently lossy if types change
[INFO] [stderr]   --> src/day04.rs:22:13
[INFO] [stderr]    |
[INFO] [stderr] 22 |             (self.month as u64) * 60 * 24 * 31 +
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^ help: try: `u64::from(self.month)`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting u16 to u64 may become silently lossy if types change
[INFO] [stderr]   --> src/day04.rs:23:14
[INFO] [stderr]    |
[INFO] [stderr] 23 |             (self.year as u64 - 1500) * 60 * 24 * 31 * 366;
[INFO] [stderr]    |              ^^^^^^^^^^^^^^^^ help: try: `u64::from(self.year)`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to u32 may become silently lossy if types change
[INFO] [stderr]    --> src/day04.rs:121:28
[INFO] [stderr]     |
[INFO] [stderr] 121 |                 slept_at = entry.minute as u32;
[INFO] [stderr]     |                            ^^^^^^^^^^^^^^^^^^^ help: try: `u32::from(entry.minute)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to u32 may become silently lossy if types change
[INFO] [stderr]    --> src/day04.rs:125:36
[INFO] [stderr]     |
[INFO] [stderr] 125 |                 for i in slept_at..(entry.minute as u32) {
[INFO] [stderr]     |                                    ^^^^^^^^^^^^^^^^^^^^^ help: try: `u32::from(entry.minute)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]  --> src/day01.rs:5:19
[INFO] [stderr]   |
[INFO] [stderr] 5 | fn part1(changes: &Vec<i32>) {
[INFO] [stderr]   |                   ^^^^^^^^^ help: change this to: `&[i32]`
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(clippy::ptr_arg)] on by default
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]   --> src/day01.rs:13:19
[INFO] [stderr]    |
[INFO] [stderr] 13 | fn part2(changes: &Vec<i32>) {
[INFO] [stderr]    |                   ^^^^^^^^^ help: change this to: `&[i32]`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]  --> src/day02.rs:5:15
[INFO] [stderr]   |
[INFO] [stderr] 5 | fn part1(ids: &Vec<Vec<char>>) {
[INFO] [stderr]   |               ^^^^^^^^^^^^^^^ help: change this to: `&[Vec<char>]`
[INFO] [stderr]   |
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]   --> src/day02.rs:39:15
[INFO] [stderr]    |
[INFO] [stderr] 39 | fn part2(ids: &Vec<Vec<char>>) {
[INFO] [stderr]    |               ^^^^^^^^^^^^^^^ help: change this to: `&[Vec<char>]`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]   --> src/day06.rs:19:22
[INFO] [stderr]    |
[INFO] [stderr] 19 | fn distances(points: &Vec<Point>, n: &Point) -> DistanceResult {
[INFO] [stderr]    |                      ^^^^^^^^^^^ help: change this to: `&[Point]`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr] warning: this argument is passed by reference, but would be more efficient if passed by value
[INFO] [stderr]   --> src/day06.rs:19:38
[INFO] [stderr]    |
[INFO] [stderr] 19 | fn distances(points: &Vec<Point>, n: &Point) -> DistanceResult {
[INFO] [stderr]    |                                      ^^^^^^ help: consider passing by value instead: `Point`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::trivially_copy_pass_by_ref)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#trivially_copy_pass_by_ref
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]   --> src/day03.rs:37:43
[INFO] [stderr]    |
[INFO] [stderr] 37 | fn part2(grid: &[u16; 1_000_000], claims: &Vec<Claim>) {
[INFO] [stderr]    |                                           ^^^^^^^^^^^ help: change this to: `&[Claim]`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr] warning: this argument is passed by reference, but would be more efficient if passed by value
[INFO] [stderr]   --> src/day06.rs:58:51
[INFO] [stderr]    |
[INFO] [stderr] 58 | fn add_neighbours(neighbours: &mut Vec<Point>, n: &Point) {
[INFO] [stderr]    |                                                   ^^^^^^ help: consider passing by value instead: `Point`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#trivially_copy_pass_by_ref
[INFO] [stderr] 
[INFO] [stderr] warning: single-character string constant used as pattern
[INFO] [stderr]   --> src/day03.rs:68:28
[INFO] [stderr]    |
[INFO] [stderr] 68 |                     .split(",")
[INFO] [stderr]    |                            ^^^ help: try using a char instead: `','`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::single_char_pattern)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_char_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: single-character string constant used as pattern
[INFO] [stderr]   --> src/day03.rs:76:28
[INFO] [stderr]    |
[INFO] [stderr] 76 |                     .split("x")
[INFO] [stderr]    |                            ^^^ help: try using a char instead: `'x'`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_char_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to u64 may become silently lossy if types change
[INFO] [stderr]   --> src/day04.rs:19:13
[INFO] [stderr]    |
[INFO] [stderr] 19 |             (self.minute as u64) +
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^ help: try: `u64::from(self.minute)`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::cast_lossless)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to u64 may become silently lossy if types change
[INFO] [stderr]   --> src/day04.rs:20:13
[INFO] [stderr]    |
[INFO] [stderr] 20 |             (self.hour as u64) * 60 +
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^ help: try: `u64::from(self.hour)`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to u64 may become silently lossy if types change
[INFO] [stderr]   --> src/day04.rs:21:13
[INFO] [stderr]    |
[INFO] [stderr] 21 |             (self.day as u64) * 60 * 24 +
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^ help: try: `u64::from(self.day)`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to u64 may become silently lossy if types change
[INFO] [stderr]   --> src/day04.rs:22:13
[INFO] [stderr]    |
[INFO] [stderr] 22 |             (self.month as u64) * 60 * 24 * 31 +
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^ help: try: `u64::from(self.month)`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting u16 to u64 may become silently lossy if types change
[INFO] [stderr]   --> src/day04.rs:23:14
[INFO] [stderr]    |
[INFO] [stderr] 23 |             (self.year as u64 - 1500) * 60 * 24 * 31 * 366;
[INFO] [stderr]    |              ^^^^^^^^^^^^^^^^ help: try: `u64::from(self.year)`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]   --> src/day06.rs:65:18
[INFO] [stderr]    |
[INFO] [stderr] 65 | fn part1(points: &Vec<Point>) {
[INFO] [stderr]    |                  ^^^^^^^^^^^ help: change this to: `&[Point]`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]    --> src/day06.rs:109:18
[INFO] [stderr]     |
[INFO] [stderr] 109 | fn part2(points: &Vec<Point>) {
[INFO] [stderr]     |                  ^^^^^^^^^^^ help: change this to: `&[Point]`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to u32 may become silently lossy if types change
[INFO] [stderr]    --> src/day04.rs:121:28
[INFO] [stderr]     |
[INFO] [stderr] 121 |                 slept_at = entry.minute as u32;
[INFO] [stderr]     |                            ^^^^^^^^^^^^^^^^^^^ help: try: `u32::from(entry.minute)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to u32 may become silently lossy if types change
[INFO] [stderr]    --> src/day04.rs:125:36
[INFO] [stderr]     |
[INFO] [stderr] 125 |                 for i in slept_at..(entry.minute as u32) {
[INFO] [stderr]     |                                    ^^^^^^^^^^^^^^^^^^^^^ help: try: `u32::from(entry.minute)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: use of `or_insert` followed by a function call
[INFO] [stderr]   --> src/day07.rs:15:35
[INFO] [stderr]    |
[INFO] [stderr] 15 |     for c in required.entry(step).or_insert(String::new()).chars() {
[INFO] [stderr]    |                                   ^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `or_insert_with(String::new)`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::or_fun_call)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#or_fun_call
[INFO] [stderr] 
[INFO] [stderr] warning: you seem to be trying to use match for destructuring a single pattern. Consider using `if let`
[INFO] [stderr]   --> src/day07.rs:20:17
[INFO] [stderr]    |
[INFO] [stderr] 20 | /                 match entry.find(step) {
[INFO] [stderr] 21 | |                     Some(index) => {
[INFO] [stderr] 22 | |                         entry.remove(index);
[INFO] [stderr] 23 | |                         length = Some(entry.len());
[INFO] [stderr] 24 | |                     },
[INFO] [stderr] 25 | |                     _ => (),
[INFO] [stderr] 26 | |                 }
[INFO] [stderr]    | |_________________^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::single_match)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stderr] help: try this
[INFO] [stderr]    |
[INFO] [stderr] 20 |                 if let Some(index) = entry.find(step) {
[INFO] [stderr] 21 |     entry.remove(index);
[INFO] [stderr] 22 |     length = Some(entry.len());
[INFO] [stderr] 23 | }
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: you seem to be trying to use match for destructuring a single pattern. Consider using `if let`
[INFO] [stderr]   --> src/day07.rs:29:9
[INFO] [stderr]    |
[INFO] [stderr] 29 | /         match length {
[INFO] [stderr] 30 | |             Some(0) => { requires.remove(&c); },
[INFO] [stderr] 31 | |             _ => (),
[INFO] [stderr] 32 | |         }
[INFO] [stderr]    | |_________^ help: try this: `if let Some(0) = length { requires.remove(&c); }`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stderr] 
[INFO] [stderr] warning: use of `or_insert` followed by a function call
[INFO] [stderr]    --> src/day07.rs:145:53
[INFO] [stderr]     |
[INFO] [stderr] 145 |         let entry = graph.requires.entry(dependent).or_insert(String::with_capacity(5));
[INFO] [stderr]     |                                                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `or_insert_with(|| String::with_capacity(5))`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#or_fun_call
[INFO] [stderr] 
[INFO] [stderr] warning: use of `or_insert` followed by a function call
[INFO] [stderr]    --> src/day07.rs:148:54
[INFO] [stderr]     |
[INFO] [stderr] 148 |         let entry = graph.required.entry(dependency).or_insert(String::with_capacity(5));
[INFO] [stderr]     |                                                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `or_insert_with(|| String::with_capacity(5))`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#or_fun_call
[INFO] [stderr] 
[INFO] [stderr] warning: you seem to be trying to use match for destructuring a single pattern. Consider using `if let`
[INFO] [stderr]   --> src/day08.rs:59:13
[INFO] [stderr]    |
[INFO] [stderr] 59 | /             match self.children.get((*byte as usize) - 1) {
[INFO] [stderr] 60 | |                 Some(child) => sum += child.value(),
[INFO] [stderr] 61 | |                 None => (),
[INFO] [stderr] 62 | |             }
[INFO] [stderr]    | |_____________^ help: try this: `if let Some(child) = self.children.get((*byte as usize) - 1) { sum += child.value() }`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]   --> src/day06.rs:19:22
[INFO] [stderr]    |
[INFO] [stderr] 19 | fn distances(points: &Vec<Point>, n: &Point) -> DistanceResult {
[INFO] [stderr]    |                      ^^^^^^^^^^^ help: change this to: `&[Point]`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr] warning: this argument is passed by reference, but would be more efficient if passed by value
[INFO] [stderr]   --> src/day06.rs:19:38
[INFO] [stderr]    |
[INFO] [stderr] 19 | fn distances(points: &Vec<Point>, n: &Point) -> DistanceResult {
[INFO] [stderr]    |                                      ^^^^^^ help: consider passing by value instead: `Point`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::trivially_copy_pass_by_ref)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#trivially_copy_pass_by_ref
[INFO] [stderr] 
[INFO] [stderr] warning: this argument is passed by reference, but would be more efficient if passed by value
[INFO] [stderr]   --> src/day06.rs:58:51
[INFO] [stderr]    |
[INFO] [stderr] 58 | fn add_neighbours(neighbours: &mut Vec<Point>, n: &Point) {
[INFO] [stderr]    |                                                   ^^^^^^ help: consider passing by value instead: `Point`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#trivially_copy_pass_by_ref
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]   --> src/day06.rs:65:18
[INFO] [stderr]    |
[INFO] [stderr] 65 | fn part1(points: &Vec<Point>) {
[INFO] [stderr]    |                  ^^^^^^^^^^^ help: change this to: `&[Point]`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]    --> src/day06.rs:109:18
[INFO] [stderr]     |
[INFO] [stderr] 109 | fn part2(points: &Vec<Point>) {
[INFO] [stderr]     |                  ^^^^^^^^^^^ help: change this to: `&[Point]`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr] warning: an inclusive range would be more readable
[INFO] [stderr]   --> src/day09.rs:12:14
[INFO] [stderr]    |
[INFO] [stderr] 12 |     for _ in 0..(final_ball + 1) {
[INFO] [stderr]    |              ^^^^^^^^^^^^^^^^^^^ help: use: `0..=final_ball`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::range_plus_one)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#range_plus_one
[INFO] [stderr] 
[INFO] [stderr] warning: called `.get().unwrap()` on a Vec. Using `[]` is more clear and more concise
[INFO] [stderr]   --> src/day09.rs:24:24
[INFO] [stderr]    |
[INFO] [stderr] 24 |                 prev = balls.get(current).unwrap().next;
[INFO] [stderr]    |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `balls[current]`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::get_unwrap)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_unwrap
[INFO] [stderr] 
[INFO] [stderr] warning: called `.get().unwrap()` on a Vec. Using `[]` is more clear and more concise
[INFO] [stderr]   --> src/day09.rs:27:24
[INFO] [stderr]    |
[INFO] [stderr] 27 |                 next = balls.get(prev).unwrap().next;
[INFO] [stderr]    |                        ^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `balls[prev]`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_unwrap
[INFO] [stderr] 
[INFO] [stderr] warning: called `.get_mut().unwrap()` on a Vec. Using `[]` is more clear and more concise
[INFO] [stderr]   --> src/day09.rs:30:31
[INFO] [stderr]    |
[INFO] [stderr] 30 |                 let between = balls.get_mut(ball).unwrap();
[INFO] [stderr]    |                               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `balls[ball]`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_unwrap
[INFO] [stderr] 
[INFO] [stderr] warning: called `.get_mut().unwrap()` on a Vec. Using `[]` is more clear and more concise
[INFO] [stderr]   --> src/day09.rs:35:30
[INFO] [stderr]    |
[INFO] [stderr] 35 |                 let before = balls.get_mut(prev).unwrap();
[INFO] [stderr]    |                              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `balls[prev]`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_unwrap
[INFO] [stderr] 
[INFO] [stderr] warning: called `.get_mut().unwrap()` on a Vec. Using `[]` is more clear and more concise
[INFO] [stderr]   --> src/day09.rs:39:29
[INFO] [stderr]    |
[INFO] [stderr] 39 |                 let after = balls.get_mut(next).unwrap();
[INFO] [stderr]    |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `balls[next]`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_unwrap
[INFO] [stderr] 
[INFO] [stderr] warning: called `.get().unwrap()` on a Vec. Using `[]` is more clear and more concise
[INFO] [stderr]   --> src/day09.rs:47:23
[INFO] [stderr]    |
[INFO] [stderr] 47 |             current = balls.get(current).unwrap().prev;
[INFO] [stderr]    |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `balls[current]`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_unwrap
[INFO] [stderr] 
[INFO] [stderr] warning: called `.get().unwrap()` on a Vec. Using `[]` is more clear and more concise
[INFO] [stderr]   --> src/day09.rs:52:27
[INFO] [stderr]    |
[INFO] [stderr] 52 |             let removed = balls.get(current).unwrap();
[INFO] [stderr]    |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `balls[current]`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_unwrap
[INFO] [stderr] 
[INFO] [stderr] warning: called `.get_mut().unwrap()` on a Vec. Using `[]` is more clear and more concise
[INFO] [stderr]   --> src/day09.rs:58:26
[INFO] [stderr]    |
[INFO] [stderr] 58 |             let before = balls.get_mut(prev).unwrap();
[INFO] [stderr]    |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `balls[prev]`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_unwrap
[INFO] [stderr] 
[INFO] [stderr] warning: called `.get_mut().unwrap()` on a Vec. Using `[]` is more clear and more concise
[INFO] [stderr]   --> src/day09.rs:62:25
[INFO] [stderr]    |
[INFO] [stderr] 62 |             let after = balls.get_mut(next).unwrap();
[INFO] [stderr]    |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `balls[next]`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_unwrap
[INFO] [stderr] 
[INFO] [stderr] warning: use of `or_insert` followed by a function call
[INFO] [stderr]   --> src/day07.rs:15:35
[INFO] [stderr]    |
[INFO] [stderr] 15 |     for c in required.entry(step).or_insert(String::new()).chars() {
[INFO] [stderr]    |                                   ^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `or_insert_with(String::new)`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::or_fun_call)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#or_fun_call
[INFO] [stderr] 
[INFO] [stderr] warning: you seem to be trying to use match for destructuring a single pattern. Consider using `if let`
[INFO] [stderr]   --> src/day07.rs:20:17
[INFO] [stderr]    |
[INFO] [stderr] 20 | /                 match entry.find(step) {
[INFO] [stderr] 21 | |                     Some(index) => {
[INFO] [stderr] 22 | |                         entry.remove(index);
[INFO] [stderr] 23 | |                         length = Some(entry.len());
[INFO] [stderr] 24 | |                     },
[INFO] [stderr] 25 | |                     _ => (),
[INFO] [stderr] 26 | |                 }
[INFO] [stderr]    | |_________________^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::single_match)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stderr] help: try this
[INFO] [stderr]    |
[INFO] [stderr] 20 |                 if let Some(index) = entry.find(step) {
[INFO] [stderr] 21 |     entry.remove(index);
[INFO] [stderr] 22 |     length = Some(entry.len());
[INFO] [stderr] 23 | }
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: you seem to be trying to use match for destructuring a single pattern. Consider using `if let`
[INFO] [stderr]   --> src/day07.rs:29:9
[INFO] [stderr]    |
[INFO] [stderr] 29 | /         match length {
[INFO] [stderr] 30 | |             Some(0) => { requires.remove(&c); },
[INFO] [stderr] 31 | |             _ => (),
[INFO] [stderr] 32 | |         }
[INFO] [stderr]    | |_________^ help: try this: `if let Some(0) = length { requires.remove(&c); }`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stderr] 
[INFO] [stderr] warning: use of `or_insert` followed by a function call
[INFO] [stderr]    --> src/day07.rs:145:53
[INFO] [stderr]     |
[INFO] [stderr] 145 |         let entry = graph.requires.entry(dependent).or_insert(String::with_capacity(5));
[INFO] [stderr]     |                                                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `or_insert_with(|| String::with_capacity(5))`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#or_fun_call
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]  --> src/day10.rs:7:22
[INFO] [stderr]   |
[INFO] [stderr] 7 | fn bounds(particles: &Vec<Particle>) -> (Point, Point) {
[INFO] [stderr]   |                      ^^^^^^^^^^^^^^ help: change this to: `&[Particle]`
[INFO] [stderr]   |
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr] warning: use of `or_insert` followed by a function call
[INFO] [stderr]    --> src/day07.rs:148:54
[INFO] [stderr]     |
[INFO] [stderr] 148 |         let entry = graph.required.entry(dependency).or_insert(String::with_capacity(5));
[INFO] [stderr]     |                                                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `or_insert_with(|| String::with_capacity(5))`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#or_fun_call
[INFO] [stderr] 
[INFO] [stderr] warning: called `.get_mut().unwrap()` on a Vec. Using `[]` is more clear and more concise
[INFO] [stderr]   --> src/day10.rs:77:10
[INFO] [stderr]    |
[INFO] [stderr] 77 |         *grid.get_mut(index).unwrap() = true;
[INFO] [stderr]    |          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `grid[index]`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_unwrap
[INFO] [stderr] 
[INFO] [stderr] warning: you seem to be trying to use match for destructuring a single pattern. Consider using `if let`
[INFO] [stderr]   --> src/day08.rs:59:13
[INFO] [stderr]    |
[INFO] [stderr] 59 | /             match self.children.get((*byte as usize) - 1) {
[INFO] [stderr] 60 | |                 Some(child) => sum += child.value(),
[INFO] [stderr] 61 | |                 None => (),
[INFO] [stderr] 62 | |             }
[INFO] [stderr]    | |_____________^ help: try this: `if let Some(child) = self.children.get((*byte as usize) - 1) { sum += child.value() }`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]  --> src/day11.rs:1:26
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub fn best_square(grid: &Vec<i32>, size: usize) -> (i32, usize, usize) {
[INFO] [stderr]   |                          ^^^^^^^^^ help: change this to: `&[i32]`
[INFO] [stderr]   |
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr] warning: unused label `'outer`
[INFO] [stderr]   --> src/day11.rs:8:5
[INFO] [stderr]    |
[INFO] [stderr] 8  | /     'outer: for x in 0..(width + 1 - size) {
[INFO] [stderr] 9  | |         cache[0] = 0;
[INFO] [stderr] 10 | |         for (y, value) in cache.iter_mut().skip(1).enumerate() {
[INFO] [stderr] 11 | |             *value = grid
[INFO] [stderr] ...  |
[INFO] [stderr] 36 | |         }
[INFO] [stderr] 37 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::unused_label)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_label
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]   --> src/day11.rs:42:20
[INFO] [stderr]    |
[INFO] [stderr] 42 | pub fn part1(grid: &Vec<i32>) {
[INFO] [stderr]    |                    ^^^^^^^^^ help: change this to: `&[i32]`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]   --> src/day11.rs:47:20
[INFO] [stderr]    |
[INFO] [stderr] 47 | pub fn part2(grid: &Vec<i32>) {
[INFO] [stderr]    |                    ^^^^^^^^^ help: change this to: `&[i32]`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr] warning: an inclusive range would be more readable
[INFO] [stderr]   --> src/day09.rs:12:14
[INFO] [stderr]    |
[INFO] [stderr] 12 |     for _ in 0..(final_ball + 1) {
[INFO] [stderr]    |              ^^^^^^^^^^^^^^^^^^^ help: use: `0..=final_ball`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::range_plus_one)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#range_plus_one
[INFO] [stderr] 
[INFO] [stderr] warning: called `.get().unwrap()` on a Vec. Using `[]` is more clear and more concise
[INFO] [stderr]   --> src/day09.rs:24:24
[INFO] [stderr]    |
[INFO] [stderr] 24 |                 prev = balls.get(current).unwrap().next;
[INFO] [stderr]    |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `balls[current]`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::get_unwrap)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_unwrap
[INFO] [stderr] 
[INFO] [stderr] warning: called `.get().unwrap()` on a Vec. Using `[]` is more clear and more concise
[INFO] [stderr]   --> src/day09.rs:27:24
[INFO] [stderr]    |
[INFO] [stderr] 27 |                 next = balls.get(prev).unwrap().next;
[INFO] [stderr]    |                        ^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `balls[prev]`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_unwrap
[INFO] [stderr] 
[INFO] [stderr] warning: called `.get_mut().unwrap()` on a Vec. Using `[]` is more clear and more concise
[INFO] [stderr]   --> src/day09.rs:30:31
[INFO] [stderr]    |
[INFO] [stderr] 30 |                 let between = balls.get_mut(ball).unwrap();
[INFO] [stderr]    |                               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `balls[ball]`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_unwrap
[INFO] [stderr] 
[INFO] [stderr] warning: called `.get_mut().unwrap()` on a Vec. Using `[]` is more clear and more concise
[INFO] [stderr]   --> src/day09.rs:35:30
[INFO] [stderr]    |
[INFO] [stderr] 35 |                 let before = balls.get_mut(prev).unwrap();
[INFO] [stderr]    |                              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `balls[prev]`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_unwrap
[INFO] [stderr] 
[INFO] [stderr] warning: called `.get_mut().unwrap()` on a Vec. Using `[]` is more clear and more concise
[INFO] [stderr]   --> src/day09.rs:39:29
[INFO] [stderr]    |
[INFO] [stderr] 39 |                 let after = balls.get_mut(next).unwrap();
[INFO] [stderr]    |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `balls[next]`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_unwrap
[INFO] [stderr] 
[INFO] [stderr] warning: called `.get().unwrap()` on a Vec. Using `[]` is more clear and more concise
[INFO] [stderr]   --> src/day09.rs:47:23
[INFO] [stderr]    |
[INFO] [stderr] 47 |             current = balls.get(current).unwrap().prev;
[INFO] [stderr]    |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `balls[current]`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_unwrap
[INFO] [stderr] 
[INFO] [stderr] warning: called `.get().unwrap()` on a Vec. Using `[]` is more clear and more concise
[INFO] [stderr]   --> src/day09.rs:52:27
[INFO] [stderr]    |
[INFO] [stderr] 52 |             let removed = balls.get(current).unwrap();
[INFO] [stderr]    |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `balls[current]`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_unwrap
[INFO] [stderr] 
[INFO] [stderr] warning: called `.get_mut().unwrap()` on a Vec. Using `[]` is more clear and more concise
[INFO] [stderr]   --> src/day09.rs:58:26
[INFO] [stderr]    |
[INFO] [stderr] 58 |             let before = balls.get_mut(prev).unwrap();
[INFO] [stderr]    |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `balls[prev]`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_unwrap
[INFO] [stderr] 
[INFO] [stderr] warning: called `.get_mut().unwrap()` on a Vec. Using `[]` is more clear and more concise
[INFO] [stderr]   --> src/day09.rs:62:25
[INFO] [stderr]    |
[INFO] [stderr] 62 |             let after = balls.get_mut(next).unwrap();
[INFO] [stderr]    |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `balls[next]`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_unwrap
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]   --> src/day12.rs:26:16
[INFO] [stderr]    |
[INFO] [stderr] 26 | fn mutate(map: &Vec<bool>, pots: &mut Vec<bool>, next: &mut Vec<bool>, left: &mut i64, right: &mut i64) {
[INFO] [stderr]    |                ^^^^^^^^^^ help: change this to: `&[bool]`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr] warning: called `.get().unwrap()` on a slice. Using `[]` is more clear and more concise
[INFO] [stderr]   --> src/day12.rs:37:21
[INFO] [stderr]    |
[INFO] [stderr] 37 |         let plant = map.get(map_index).unwrap();
[INFO] [stderr]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `map[map_index]`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_unwrap
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]   --> src/day12.rs:52:15
[INFO] [stderr]    |
[INFO] [stderr] 52 | fn part1(map: &Vec<bool>, initial: &Vec<bool>) {
[INFO] [stderr]    |               ^^^^^^^^^^ help: change this to: `&[bool]`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]   --> src/day12.rs:52:36
[INFO] [stderr]    |
[INFO] [stderr] 52 | fn part1(map: &Vec<bool>, initial: &Vec<bool>) {
[INFO] [stderr]    |                                    ^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] help: change this to
[INFO] [stderr]    |
[INFO] [stderr] 52 | fn part1(map: &Vec<bool>, initial: &[bool]) {
[INFO] [stderr]    |                                    ^^^^^^^
[INFO] [stderr] help: change `initial.clone()` to
[INFO] [stderr]    |
[INFO] [stderr] 53 |     let mut pots = initial.to_owned();
[INFO] [stderr]    |                    ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: this looks like you are swapping `pots` and `next` manually
[INFO] [stderr]   --> src/day12.rs:61:9
[INFO] [stderr]    |
[INFO] [stderr] 61 | /         let tmp = pots;
[INFO] [stderr] 62 | |         pots = next;
[INFO] [stderr] 63 | |         next = tmp;
[INFO] [stderr]    | |__________________^ help: try: `std::mem::swap(&mut pots, &mut next)`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::manual_swap)] on by default
[INFO] [stderr]    = note: or maybe you should use `std::mem::replace`?
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#manual_swap
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]   --> src/day12.rs:92:15
[INFO] [stderr]    |
[INFO] [stderr] 92 | fn part2(map: &Vec<bool>, initial: &Vec<bool>) {
[INFO] [stderr]    |               ^^^^^^^^^^ help: change this to: `&[bool]`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]   --> src/day12.rs:92:36
[INFO] [stderr]    |
[INFO] [stderr] 92 | fn part2(map: &Vec<bool>, initial: &Vec<bool>) {
[INFO] [stderr]    |                                    ^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] help: change this to
[INFO] [stderr]    |
[INFO] [stderr] 92 | fn part2(map: &Vec<bool>, initial: &[bool]) {
[INFO] [stderr]    |                                    ^^^^^^^
[INFO] [stderr] help: change `initial.clone()` to
[INFO] [stderr]    |
[INFO] [stderr] 94 |     let mut pots = initial.to_owned();
[INFO] [stderr]    |                    ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: this looks like you are swapping `pots` and `next` manually
[INFO] [stderr]    --> src/day12.rs:109:9
[INFO] [stderr]     |
[INFO] [stderr] 109 | /         let tmp = pots;
[INFO] [stderr] 110 | |         pots = next;
[INFO] [stderr] 111 | |         next = tmp;
[INFO] [stderr]     | |__________________^ help: try: `std::mem::swap(&mut pots, &mut next)`
[INFO] [stderr]     |
[INFO] [stderr]     = note: or maybe you should use `std::mem::replace`?
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#manual_swap
[INFO] [stderr] 
[INFO] [stderr] warning: casting i32 to i64 may become silently lossy if types change
[INFO] [stderr]    --> src/day12.rs:116:30
[INFO] [stderr]     |
[INFO] [stderr] 116 |     left += 50_000_000_000 - (i as i64);
[INFO] [stderr]     |                              ^^^^^^^^^^ help: try: `i64::from(i)`
[INFO] [stderr] warning: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]  --> src/day10.rs:7:22
[INFO] [stderr]   |
[INFO] [stderr] 7 | fn bounds(particles: &Vec<Particle>) -> (Point, Point) {
[INFO] [stderr]   |                      ^^^^^^^^^^^^^^ help: change this to: `&[Particle]`
[INFO] [stderr]   |
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] 
[INFO] [stderr] warning: called `.get_mut().unwrap()` on a Vec. Using `[]` is more clear and more concise
[INFO] [stderr]   --> src/day10.rs:77:10
[INFO] [stderr]    |
[INFO] [stderr] 77 |         *grid.get_mut(index).unwrap() = true;
[INFO] [stderr]    |          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `grid[index]`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_unwrap
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]  --> src/day11.rs:1:26
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub fn best_square(grid: &Vec<i32>, size: usize) -> (i32, usize, usize) {
[INFO] [stderr]   |                          ^^^^^^^^^ help: change this to: `&[i32]`
[INFO] [stderr]   |
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr] warning: unused label `'outer`
[INFO] [stderr]   --> src/day11.rs:8:5
[INFO] [stderr]    |
[INFO] [stderr] 8  | /     'outer: for x in 0..(width + 1 - size) {
[INFO] [stderr] 9  | |         cache[0] = 0;
[INFO] [stderr] 10 | |         for (y, value) in cache.iter_mut().skip(1).enumerate() {
[INFO] [stderr] 11 | |             *value = grid
[INFO] [stderr] ...  |
[INFO] [stderr] 36 | |         }
[INFO] [stderr] 37 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::unused_label)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_label
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]   --> src/day11.rs:42:20
[INFO] [stderr]    |
[INFO] [stderr] 42 | pub fn part1(grid: &Vec<i32>) {
[INFO] [stderr]    |                    ^^^^^^^^^ help: change this to: `&[i32]`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]   --> src/day11.rs:47:20
[INFO] [stderr]    |
[INFO] [stderr] 47 | pub fn part2(grid: &Vec<i32>) {
[INFO] [stderr]    |                    ^^^^^^^^^ help: change this to: `&[i32]`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]   --> src/day12.rs:26:16
[INFO] [stderr]    |
[INFO] [stderr] 26 | fn mutate(map: &Vec<bool>, pots: &mut Vec<bool>, next: &mut Vec<bool>, left: &mut i64, right: &mut i64) {
[INFO] [stderr]    |                ^^^^^^^^^^ help: change this to: `&[bool]`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr] warning: called `.get().unwrap()` on a slice. Using `[]` is more clear and more concise
[INFO] [stderr]   --> src/day12.rs:37:21
[INFO] [stderr]    |
[INFO] [stderr] 37 |         let plant = map.get(map_index).unwrap();
[INFO] [stderr]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `map[map_index]`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_unwrap
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]   --> src/day12.rs:52:15
[INFO] [stderr]    |
[INFO] [stderr] 52 | fn part1(map: &Vec<bool>, initial: &Vec<bool>) {
[INFO] [stderr]    |               ^^^^^^^^^^ help: change this to: `&[bool]`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]   --> src/day12.rs:52:36
[INFO] [stderr]    |
[INFO] [stderr] 52 | fn part1(map: &Vec<bool>, initial: &Vec<bool>) {
[INFO] [stderr]    |                                    ^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] help: change this to
[INFO] [stderr]    |
[INFO] [stderr] 52 | fn part1(map: &Vec<bool>, initial: &[bool]) {
[INFO] [stderr]    |                                    ^^^^^^^
[INFO] [stderr] help: change `initial.clone()` to
[INFO] [stderr]    |
[INFO] [stderr] 53 |     let mut pots = initial.to_owned();
[INFO] [stderr]    |                    ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: this looks like you are swapping `pots` and `next` manually
[INFO] [stderr]   --> src/day12.rs:61:9
[INFO] [stderr]    |
[INFO] [stderr] 61 | /         let tmp = pots;
[INFO] [stderr] 62 | |         pots = next;
[INFO] [stderr] 63 | |         next = tmp;
[INFO] [stderr]    | |__________________^ help: try: `std::mem::swap(&mut pots, &mut next)`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::manual_swap)] on by default
[INFO] [stderr]    = note: or maybe you should use `std::mem::replace`?
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#manual_swap
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]   --> src/day12.rs:92:15
[INFO] [stderr]    |
[INFO] [stderr] 92 | fn part2(map: &Vec<bool>, initial: &Vec<bool>) {
[INFO] [stderr]    |               ^^^^^^^^^^ help: change this to: `&[bool]`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]   --> src/day12.rs:92:36
[INFO] [stderr]    |
[INFO] [stderr] 92 | fn part2(map: &Vec<bool>, initial: &Vec<bool>) {
[INFO] [stderr]    |                                    ^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] help: change this to
[INFO] [stderr]    |
[INFO] [stderr] 92 | fn part2(map: &Vec<bool>, initial: &[bool]) {
[INFO] [stderr]    |                                    ^^^^^^^
[INFO] [stderr] help: change `initial.clone()` to
[INFO] [stderr]    |
[INFO] [stderr] 94 |     let mut pots = initial.to_owned();
[INFO] [stderr]    |                    ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: this looks like you are swapping `pots` and `next` manually
[INFO] [stderr]    --> src/day12.rs:109:9
[INFO] [stderr]     |
[INFO] [stderr] 109 | /         let tmp = pots;
[INFO] [stderr] 110 | |         pots = next;
[INFO] [stderr] 111 | |         next = tmp;
[INFO] [stderr]     | |__________________^ help: try: `std::mem::swap(&mut pots, &mut next)`
[INFO] [stderr]     |
[INFO] [stderr]     = note: or maybe you should use `std::mem::replace`?
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#manual_swap
[INFO] [stderr] 
[INFO] [stderr] warning: casting i32 to i64 may become silently lossy if types change
[INFO] [stderr]    --> src/day12.rs:116:30
[INFO] [stderr]     |
[INFO] [stderr] 116 |     left += 50_000_000_000 - (i as i64);
[INFO] [stderr]     |                              ^^^^^^^^^^ help: try: `i64::from(i)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 11.10s
[INFO] running `"docker" "inspect" "8ddf1c32aa331a84f012c723f204d1cdf822ec14ca192e2aeae4ab6ec7225cad"`
[INFO] running `"docker" "rm" "-f" "8ddf1c32aa331a84f012c723f204d1cdf822ec14ca192e2aeae4ab6ec7225cad"`
[INFO] [stdout] 8ddf1c32aa331a84f012c723f204d1cdf822ec14ca192e2aeae4ab6ec7225cad