[INFO] cloning repository https://github.com/max-dekock/aoc_2024
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/max-dekock/aoc_2024" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmax-dekock%2Faoc_2024", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmax-dekock%2Faoc_2024'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b4f8188834c0cb99bb68770182cebb31be753e08
[INFO] linting max-dekock/aoc_2024 against nightly for clippy-nonminimal_bool-denied
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmax-dekock%2Faoc_2024" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/max-dekock/aoc_2024
[INFO] finished tweaking git repo https://github.com/max-dekock/aoc_2024
[INFO] tweaked toml for git repo https://github.com/max-dekock/aoc_2024 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/max-dekock/aoc_2024 on toolchain nightly
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+nightly" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/max-dekock/aoc_2024 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+nightly" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+nightly" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0224ad242c454f1665bbb4c58a8ae79a0182f225c982d9c474b35bbf8cf04622
[INFO] running `Command { std: "docker" "start" "-a" "0224ad242c454f1665bbb4c58a8ae79a0182f225c982d9c474b35bbf8cf04622", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0224ad242c454f1665bbb4c58a8ae79a0182f225c982d9c474b35bbf8cf04622", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0224ad242c454f1665bbb4c58a8ae79a0182f225c982d9c474b35bbf8cf04622", kill_on_drop: false }`
[INFO] [stdout] 0224ad242c454f1665bbb4c58a8ae79a0182f225c982d9c474b35bbf8cf04622
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+nightly" "clippy" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 79cff669df45e94c543f3729d7dcbff48da687369889a1651e48154786b3877c
[INFO] running `Command { std: "docker" "start" "-a" "79cff669df45e94c543f3729d7dcbff48da687369889a1651e48154786b3877c", kill_on_drop: false }`
[INFO] [stderr]     Checking aho-corasick v1.1.3
[INFO] [stderr]     Checking indexmap v2.7.0
[INFO] [stderr]     Checking nom v7.1.3
[INFO] [stderr]     Checking priority-queue v2.1.1
[INFO] [stderr]     Checking regex-automata v0.4.9
[INFO] [stderr]     Checking regex v1.11.1
[INFO] [stderr]     Checking aoc_2024 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: manual implementation of `.is_multiple_of()`
[INFO] [stdout]   --> src/grid.rs:51:12
[INFO] [stdout]    |
[INFO] [stdout] 51 |         if data.len() % width != 0 {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^^^ help: replace with: `!data.len().is_multiple_of(width)`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#manual_is_multiple_of
[INFO] [stdout]    = note: `#[warn(clippy::manual_is_multiple_of)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `write!()` with a format string that ends in a single newline
[INFO] [stdout]    --> src/grid.rs:122:13
[INFO] [stdout]     |
[INFO] [stdout] 122 |             write!(formatter, "\n")?;
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#write_with_newline
[INFO] [stdout]     = note: `#[warn(clippy::write_with_newline)]` on by default
[INFO] [stdout] help: use `writeln!` instead
[INFO] [stdout]     |
[INFO] [stdout] 122 -             write!(formatter, "\n")?;
[INFO] [stdout] 122 +             writeln!(formatter)?;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: manual implementation of `.is_multiple_of()`
[INFO] [stdout]   --> src/grid.rs:51:12
[INFO] [stdout]    |
[INFO] [stdout] 51 |         if data.len() % width != 0 {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^^^ help: replace with: `!data.len().is_multiple_of(width)`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#manual_is_multiple_of
[INFO] [stdout]    = note: `#[warn(clippy::manual_is_multiple_of)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `write!()` with a format string that ends in a single newline
[INFO] [stdout]    --> src/grid.rs:122:13
[INFO] [stdout]     |
[INFO] [stdout] 122 |             write!(formatter, "\n")?;
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#write_with_newline
[INFO] [stdout]     = note: `#[warn(clippy::write_with_newline)]` on by default
[INFO] [stdout] help: use `writeln!` instead
[INFO] [stdout]     |
[INFO] [stdout] 122 -             write!(formatter, "\n")?;
[INFO] [stdout] 122 +             writeln!(formatter)?;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]   --> src/bin/day16/main.rs:94:5
[INFO] [stdout]    |
[INFO] [stdout] 94 |     return best_path(start_coord, end_coord, tiles);
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stdout]    = note: `#[warn(clippy::needless_return)]` on by default
[INFO] [stdout] help: remove `return`
[INFO] [stdout]    |
[INFO] [stdout] 94 -     return best_path(start_coord, end_coord, tiles);
[INFO] [stdout] 94 +     best_path(start_coord, end_coord, tiles)
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]   --> src/bin/day11/main.rs:17:9
[INFO] [stdout]    |
[INFO] [stdout] 17 |         return Double(left, right);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stdout]    = note: `#[warn(clippy::needless_return)]` on by default
[INFO] [stdout] help: remove `return`
[INFO] [stdout]    |
[INFO] [stdout] 17 -         return Double(left, right);
[INFO] [stdout] 17 +         Double(left, right)
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]   --> src/bin/day11/main.rs:19:9
[INFO] [stdout]    |
[INFO] [stdout] 19 |         return Single(stone.checked_mul(2024).unwrap());
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stdout] help: remove `return`
[INFO] [stdout]    |
[INFO] [stdout] 19 -         return Single(stone.checked_mul(2024).unwrap());
[INFO] [stdout] 19 +         Single(stone.checked_mul(2024).unwrap())
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: manual implementation of `.is_multiple_of()`
[INFO] [stdout]   --> src/bin/day11/main.rs:13:8
[INFO] [stdout]    |
[INFO] [stdout] 13 |     if num_digits % 2 == 0 {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^ help: replace with: `num_digits.is_multiple_of(2)`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#manual_is_multiple_of
[INFO] [stdout]    = note: `#[warn(clippy::manual_is_multiple_of)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]   --> src/bin/day11/main.rs:38:5
[INFO] [stdout]    |
[INFO] [stdout] 38 | /     return input.split_whitespace()
[INFO] [stdout] 39 | |         .map(|token| token.parse::<u64>().unwrap())
[INFO] [stdout] 40 | |         .collect();
[INFO] [stdout]    | |__________________^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stdout] help: remove `return`
[INFO] [stdout]    |
[INFO] [stdout] 38 ~     input.split_whitespace()
[INFO] [stdout] 39 +         .map(|token| token.parse::<u64>().unwrap())
[INFO] [stdout] 40 ~         .collect()
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]   --> src/bin/day11/main.rs:49:5
[INFO] [stdout]    |
[INFO] [stdout] 49 |     return stones.len();
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stdout] help: remove `return`
[INFO] [stdout]    |
[INFO] [stdout] 49 -     return stones.len();
[INFO] [stdout] 49 +     stones.len()
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]   --> src/bin/day11/main.rs:66:5
[INFO] [stdout]    |
[INFO] [stdout] 66 |     return n;
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stdout] help: remove `return`
[INFO] [stdout]    |
[INFO] [stdout] 66 -     return n;
[INFO] [stdout] 66 +     n
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the loop variable `i` is used to index `disk`
[INFO] [stdout]   --> src/bin/day9/main.rs:57:14
[INFO] [stdout]    |
[INFO] [stdout] 57 |     for i in 0..disk.len() {
[INFO] [stdout]    |              ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_range_loop
[INFO] [stdout]    = note: `#[warn(clippy::needless_range_loop)]` on by default
[INFO] [stdout] help: consider using an iterator and enumerate()
[INFO] [stdout]    |
[INFO] [stdout] 57 -     for i in 0..disk.len() {
[INFO] [stdout] 57 +     for (i, <item>) in disk.iter().enumerate() {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: length comparison to zero
[INFO] [stdout]  --> src/bin/day2/main.rs:3:24
[INFO] [stdout]   |
[INFO] [stdout] 3 |         .filter(|line| line.len() > 0)
[INFO] [stdout]   |                        ^^^^^^^^^^^^^^ help: using `!is_empty` is clearer and more explicit: `!line.is_empty()`
[INFO] [stdout]   |
[INFO] [stdout]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stdout]   = note: `#[warn(clippy::len_zero)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: manual `!RangeInclusive::contains` implementation
[INFO] [stdout]   --> src/bin/day2/main.rs:19:12
[INFO] [stdout]    |
[INFO] [stdout] 19 |         if diff < 1 || diff > 3 {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^ help: use: `!(1..=3).contains(&diff)`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#manual_range_contains
[INFO] [stdout]    = note: `#[warn(clippy::manual_range_contains)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this expression creates a reference which is immediately dereferenced by the compiler
[INFO] [stdout]   --> src/bin/day2/main.rs:28:49
[INFO] [stdout]    |
[INFO] [stdout] 28 |     reports.into_iter().filter(|report| is_safe(&report)).count()
[INFO] [stdout]    |                                                 ^^^^^^^ help: change this to: `report`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_borrow
[INFO] [stdout]    = note: `#[warn(clippy::needless_borrow)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this expression creates a reference which is immediately dereferenced by the compiler
[INFO] [stdout]   --> src/bin/day2/main.rs:32:16
[INFO] [stdout]    |
[INFO] [stdout] 32 |     if is_safe(&report) {
[INFO] [stdout]    |                ^^^^^^^ help: change this to: `report`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_borrow
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this expression creates a reference which is immediately dereferenced by the compiler
[INFO] [stdout]   --> src/bin/day2/main.rs:48:60
[INFO] [stdout]    |
[INFO] [stdout] 48 |     reports.into_iter().filter(|report| safe_with_dampener(&report)).count()
[INFO] [stdout]    |                                                            ^^^^^^^ help: change this to: `report`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_borrow
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: very complex type used. Consider factoring parts into `type` definitions
[INFO] [stdout]   --> src/bin/day8/main.rs:22:26
[INFO] [stdout]    |
[INFO] [stdout] 22 | fn parse(input: &str) -> (HashMap<char, Vec<(i32, i32)>>, i32, i32) {
[INFO] [stdout]    |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#type_complexity
[INFO] [stdout]    = note: `#[warn(clippy::type_complexity)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: length comparison to zero
[INFO] [stdout]   --> src/bin/day8/main.rs:26:50
[INFO] [stdout]    |
[INFO] [stdout] 26 |     for (x, line) in input.lines().filter(|line| line.len() > 0).enumerate() {
[INFO] [stdout]    |                                                  ^^^^^^^^^^^^^^ help: using `!is_empty` is clearer and more explicit: `!line.is_empty()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stdout]    = note: `#[warn(clippy::len_zero)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: iterating on a map's values
[INFO] [stdout]   --> src/bin/day8/main.rs:42:45
[INFO] [stdout]    |
[INFO] [stdout] 42 |       let antinode_set: HashSet<(i32, i32)> = antennas.into_iter()
[INFO] [stdout]    |  _____________________________________________^
[INFO] [stdout] 43 | |         .flat_map(|(_, a)| all_antinodes(a))
[INFO] [stdout]    | |____________________________________________^ help: try: `antennas.into_values().flat_map(|a| all_antinodes(a))`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#iter_kv_map
[INFO] [stdout]    = note: `#[warn(clippy::iter_kv_map)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: length comparison to zero
[INFO] [stdout]   --> src/bin/day7/main.rs:25:24
[INFO] [stdout]    |
[INFO] [stdout] 25 |         .filter(|line| line.len() > 0)
[INFO] [stdout]    |                        ^^^^^^^^^^^^^^ help: using `!is_empty` is clearer and more explicit: `!line.is_empty()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stdout]    = note: `#[warn(clippy::len_zero)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: length comparison to zero
[INFO] [stdout]   --> src/bin/day19/main.rs:11:39
[INFO] [stdout]    |
[INFO] [stdout] 11 |     let designs = lines.filter(|line| line.len() > 0).map(|line| line.as_bytes().to_vec()).collect();
[INFO] [stdout]    |                                       ^^^^^^^^^^^^^^ help: using `!is_empty` is clearer and more explicit: `!line.is_empty()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stdout]    = note: `#[warn(clippy::len_zero)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the loop variable `idx` is used to index `patterns`
[INFO] [stdout]   --> src/bin/day19/main.rs:22:20
[INFO] [stdout]    |
[INFO] [stdout] 22 |         for idx in start_idx..end_idx {
[INFO] [stdout]    |                    ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_range_loop
[INFO] [stdout]    = note: `#[warn(clippy::needless_range_loop)]` on by default
[INFO] [stdout] help: consider using an iterator and enumerate()
[INFO] [stdout]    |
[INFO] [stdout] 22 -         for idx in start_idx..end_idx {
[INFO] [stdout] 22 +         for (idx, <item>) in patterns.iter().enumerate().take(end_idx).skip(start_idx) {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: length comparison to zero
[INFO] [stdout]   --> src/bin/day5/main.rs:13:24
[INFO] [stdout]    |
[INFO] [stdout] 13 |         .filter(|line| line.len() > 0);
[INFO] [stdout]    |                        ^^^^^^^^^^^^^^ help: using `!is_empty` is clearer and more explicit: `!line.is_empty()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stdout]    = note: `#[warn(clippy::len_zero)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this expression creates a reference which is immediately dereferenced by the compiler
[INFO] [stdout]   --> src/bin/day8/main.rs:84:46
[INFO] [stdout]    |
[INFO] [stdout] 84 |         .flat_map(|a_set| all_antinodes_pt_2(&a_set, rows, cols))
[INFO] [stdout]    |                                              ^^^^^^ help: change this to: `a_set`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_borrow
[INFO] [stdout]    = note: `#[warn(clippy::needless_borrow)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]   --> src/bin/day7/main.rs:37:17
[INFO] [stdout]    |
[INFO] [stdout] 37 |                 return new_possibilities;
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stdout]    = note: `#[warn(clippy::needless_return)]` on by default
[INFO] [stdout] help: remove `return`
[INFO] [stdout]    |
[INFO] [stdout] 37 -                 return new_possibilities;
[INFO] [stdout] 37 +                 new_possibilities
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]   --> src/bin/day7/main.rs:45:17
[INFO] [stdout]    |
[INFO] [stdout] 45 |                 return new_possibilities;
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stdout] help: remove `return`
[INFO] [stdout]    |
[INFO] [stdout] 45 -                 return new_possibilities;
[INFO] [stdout] 45 +                 new_possibilities
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: length comparison to zero
[INFO] [stdout]   --> src/bin/day7/main.rs:34:16
[INFO] [stdout]    |
[INFO] [stdout] 34 |             if possibilities.len() == 0 {
[INFO] [stdout]    |                ^^^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `possibilities.is_empty()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]   --> src/bin/day5/main.rs:52:5
[INFO] [stdout]    |
[INFO] [stdout] 52 |     return result;
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stdout]    = note: `#[warn(clippy::needless_return)]` on by default
[INFO] [stdout] help: remove `return`
[INFO] [stdout]    |
[INFO] [stdout] 52 -     return result;
[INFO] [stdout] 52 +     result
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: length comparison to zero
[INFO] [stdout]  --> src/bin/day1/main.rs:4:83
[INFO] [stdout]   |
[INFO] [stdout] 4 |     let (mut left, mut right): (Vec<u32>, Vec<u32>) = input.lines().filter(|line| line.len() > 0).map(|line| {
[INFO] [stdout]   |                                                                                   ^^^^^^^^^^^^^^ help: using `!is_empty` is clearer and more explicit: `!line.is_empty()`
[INFO] [stdout]   |
[INFO] [stdout]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stdout]   = note: `#[warn(clippy::len_zero)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: equality checks against true are unnecessary
[INFO] [stdout]   --> src/bin/day18/main.rs:58:54
[INFO] [stdout]    |
[INFO] [stdout] 58 |             if grid.get(neighbor).is_none_or(|&cell| cell == true) {
[INFO] [stdout]    |                                                      ^^^^^^^^^^^^ help: try: `cell`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#bool_comparison
[INFO] [stdout]    = note: `#[warn(clippy::bool_comparison)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: explicit call to `.into_iter()` in function argument accepting `IntoIterator`
[INFO] [stdout]   --> src/bin/day1/main.rs:11:26
[INFO] [stdout]    |
[INFO] [stdout] 11 |     left.into_iter().zip(right.into_iter()).map(|(l, r)| l.abs_diff(r)).sum()
[INFO] [stdout]    |                          ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: this parameter accepts any `IntoIterator`, so you don't need to call `.into_iter()`
[INFO] [stdout]   --> /rustc/3645249d79dfb136b5d8de3ce153d19d6698d92d/library/core/src/iter/traits/iterator.rs:629:11
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_conversion
[INFO] [stdout]    = note: `#[warn(clippy::useless_conversion)]` on by default
[INFO] [stdout] help: consider removing the `.into_iter()`
[INFO] [stdout]    |
[INFO] [stdout] 11 -     left.into_iter().zip(right.into_iter()).map(|(l, r)| l.abs_diff(r)).sum()
[INFO] [stdout] 11 +     left.into_iter().zip(right).map(|(l, r)| l.abs_diff(r)).sum()
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]   --> src/bin/day1/main.rs:28:5
[INFO] [stdout]    |
[INFO] [stdout] 28 |     return similarity;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stdout]    = note: `#[warn(clippy::needless_return)]` on by default
[INFO] [stdout] help: remove `return`
[INFO] [stdout]    |
[INFO] [stdout] 28 -     return similarity;
[INFO] [stdout] 28 +     similarity
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: length comparison to zero
[INFO] [stdout]   --> src/bin/day1/main.rs:15:75
[INFO] [stdout]    |
[INFO] [stdout] 15 |     let (left, right): (Vec<u32>, Vec<u32>) = input.lines().filter(|line| line.len() > 0).map(|line| {
[INFO] [stdout]    |                                                                           ^^^^^^^^^^^^^^ help: using `!is_empty` is clearer and more explicit: `!line.is_empty()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: length comparison to zero
[INFO] [stdout]  --> src/bin/day1/main.rs:4:83
[INFO] [stdout]   |
[INFO] [stdout] 4 |     let (mut left, mut right): (Vec<u32>, Vec<u32>) = input.lines().filter(|line| line.len() > 0).map(|line| {
[INFO] [stdout]   |                                                                                   ^^^^^^^^^^^^^^ help: using `!is_empty` is clearer and more explicit: `!line.is_empty()`
[INFO] [stdout]   |
[INFO] [stdout]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stdout]   = note: `#[warn(clippy::len_zero)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: explicit call to `.into_iter()` in function argument accepting `IntoIterator`
[INFO] [stdout]   --> src/bin/day1/main.rs:11:26
[INFO] [stdout]    |
[INFO] [stdout] 11 |     left.into_iter().zip(right.into_iter()).map(|(l, r)| l.abs_diff(r)).sum()
[INFO] [stdout]    |                          ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: this parameter accepts any `IntoIterator`, so you don't need to call `.into_iter()`
[INFO] [stdout]   --> /rustc/3645249d79dfb136b5d8de3ce153d19d6698d92d/library/core/src/iter/traits/iterator.rs:629:11
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_conversion
[INFO] [stdout]    = note: `#[warn(clippy::useless_conversion)]` on by default
[INFO] [stdout] help: consider removing the `.into_iter()`
[INFO] [stdout]    |
[INFO] [stdout] 11 -     left.into_iter().zip(right.into_iter()).map(|(l, r)| l.abs_diff(r)).sum()
[INFO] [stdout] 11 +     left.into_iter().zip(right).map(|(l, r)| l.abs_diff(r)).sum()
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]   --> src/bin/day1/main.rs:28:5
[INFO] [stdout]    |
[INFO] [stdout] 28 |     return similarity;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stdout]    = note: `#[warn(clippy::needless_return)]` on by default
[INFO] [stdout] help: remove `return`
[INFO] [stdout]    |
[INFO] [stdout] 28 -     return similarity;
[INFO] [stdout] 28 +     similarity
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: length comparison to zero
[INFO] [stdout]   --> src/bin/day1/main.rs:15:75
[INFO] [stdout]    |
[INFO] [stdout] 15 |     let (left, right): (Vec<u32>, Vec<u32>) = input.lines().filter(|line| line.len() > 0).map(|line| {
[INFO] [stdout]    |                                                                           ^^^^^^^^^^^^^^ help: using `!is_empty` is clearer and more explicit: `!line.is_empty()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]   --> src/bin/day11/main.rs:17:9
[INFO] [stdout]    |
[INFO] [stdout] 17 |         return Double(left, right);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stdout]    = note: `#[warn(clippy::needless_return)]` on by default
[INFO] [stdout] help: remove `return`
[INFO] [stdout]    |
[INFO] [stdout] 17 -         return Double(left, right);
[INFO] [stdout] 17 +         Double(left, right)
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]   --> src/bin/day11/main.rs:19:9
[INFO] [stdout]    |
[INFO] [stdout] 19 |         return Single(stone.checked_mul(2024).unwrap());
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stdout] help: remove `return`
[INFO] [stdout]    |
[INFO] [stdout] 19 -         return Single(stone.checked_mul(2024).unwrap());
[INFO] [stdout] 19 +         Single(stone.checked_mul(2024).unwrap())
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: manual implementation of `.is_multiple_of()`
[INFO] [stdout]   --> src/bin/day11/main.rs:13:8
[INFO] [stdout]    |
[INFO] [stdout] 13 |     if num_digits % 2 == 0 {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^ help: replace with: `num_digits.is_multiple_of(2)`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#manual_is_multiple_of
[INFO] [stdout]    = note: `#[warn(clippy::manual_is_multiple_of)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]   --> src/bin/day11/main.rs:38:5
[INFO] [stdout]    |
[INFO] [stdout] 38 | /     return input.split_whitespace()
[INFO] [stdout] 39 | |         .map(|token| token.parse::<u64>().unwrap())
[INFO] [stdout] 40 | |         .collect();
[INFO] [stdout]    | |__________________^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stdout] help: remove `return`
[INFO] [stdout]    |
[INFO] [stdout] 38 ~     input.split_whitespace()
[INFO] [stdout] 39 +         .map(|token| token.parse::<u64>().unwrap())
[INFO] [stdout] 40 ~         .collect()
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]   --> src/bin/day11/main.rs:49:5
[INFO] [stdout]    |
[INFO] [stdout] 49 |     return stones.len();
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stdout] help: remove `return`
[INFO] [stdout]    |
[INFO] [stdout] 49 -     return stones.len();
[INFO] [stdout] 49 +     stones.len()
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]   --> src/bin/day11/main.rs:66:5
[INFO] [stdout]    |
[INFO] [stdout] 66 |     return n;
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stdout] help: remove `return`
[INFO] [stdout]    |
[INFO] [stdout] 66 -     return n;
[INFO] [stdout] 66 +     n
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: length comparison to zero
[INFO] [stdout]  --> src/bin/day12/main.rs:8:50
[INFO] [stdout]   |
[INFO] [stdout] 8 |     for (x, line) in input.lines().filter(|line| line.len() > 0).enumerate() {
[INFO] [stdout]   |                                                  ^^^^^^^^^^^^^^ help: using `!is_empty` is clearer and more explicit: `!line.is_empty()`
[INFO] [stdout]   |
[INFO] [stdout]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stdout]   = note: `#[warn(clippy::len_zero)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: length comparison to zero
[INFO] [stdout]   --> src/bin/day12/main.rs:69:50
[INFO] [stdout]    |
[INFO] [stdout] 69 |     for (x, line) in input.lines().filter(|line| line.len() > 0).enumerate() {
[INFO] [stdout]    |                                                  ^^^^^^^^^^^^^^ help: using `!is_empty` is clearer and more explicit: `!line.is_empty()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: length comparison to zero
[INFO] [stdout]  --> src/bin/day12/main.rs:8:50
[INFO] [stdout]   |
[INFO] [stdout] 8 |     for (x, line) in input.lines().filter(|line| line.len() > 0).enumerate() {
[INFO] [stdout]   |                                                  ^^^^^^^^^^^^^^ help: using `!is_empty` is clearer and more explicit: `!line.is_empty()`
[INFO] [stdout]   |
[INFO] [stdout]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stdout]   = note: `#[warn(clippy::len_zero)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `cost_to_reach` is never used
[INFO] [stdout]   --> src/bin/day13/main.rs:50:4
[INFO] [stdout]    |
[INFO] [stdout] 50 | fn cost_to_reach(coord: (i64, i64), machine: &Machine, cache: &mut HashMap<(i64, i64), u64>) -> Option<u64> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: length comparison to zero
[INFO] [stdout]   --> src/bin/day12/main.rs:69:50
[INFO] [stdout]    |
[INFO] [stdout] 69 |     for (x, line) in input.lines().filter(|line| line.len() > 0).enumerate() {
[INFO] [stdout]    |                                                  ^^^^^^^^^^^^^^ help: using `!is_empty` is clearer and more explicit: `!line.is_empty()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: length comparison to zero
[INFO] [stdout]   --> src/bin/day19/main.rs:11:39
[INFO] [stdout]    |
[INFO] [stdout] 11 |     let designs = lines.filter(|line| line.len() > 0).map(|line| line.as_bytes().to_vec()).collect();
[INFO] [stdout]    |                                       ^^^^^^^^^^^^^^ help: using `!is_empty` is clearer and more explicit: `!line.is_empty()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stdout]    = note: `#[warn(clippy::len_zero)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the loop variable `idx` is used to index `patterns`
[INFO] [stdout]   --> src/bin/day19/main.rs:22:20
[INFO] [stdout]    |
[INFO] [stdout] 22 |         for idx in start_idx..end_idx {
[INFO] [stdout]    |                    ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_range_loop
[INFO] [stdout]    = note: `#[warn(clippy::needless_range_loop)]` on by default
[INFO] [stdout] help: consider using an iterator and enumerate()
[INFO] [stdout]    |
[INFO] [stdout] 22 -         for idx in start_idx..end_idx {
[INFO] [stdout] 22 +         for (idx, <item>) in patterns.iter().enumerate().take(end_idx).skip(start_idx) {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: length comparison to zero
[INFO] [stdout]  --> src/bin/day2/main.rs:3:24
[INFO] [stdout]   |
[INFO] [stdout] 3 |         .filter(|line| line.len() > 0)
[INFO] [stdout]   |                        ^^^^^^^^^^^^^^ help: using `!is_empty` is clearer and more explicit: `!line.is_empty()`
[INFO] [stdout]   |
[INFO] [stdout]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stdout]   = note: `#[warn(clippy::len_zero)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: equality checks against true are unnecessary
[INFO] [stdout]   --> src/bin/day18/main.rs:58:54
[INFO] [stdout]    |
[INFO] [stdout] 58 |             if grid.get(neighbor).is_none_or(|&cell| cell == true) {
[INFO] [stdout]    |                                                      ^^^^^^^^^^^^ help: try: `cell`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#bool_comparison
[INFO] [stdout]    = note: `#[warn(clippy::bool_comparison)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this boolean expression can be simplified
[INFO] [stdout]  --> src/bin/day4/main.rs:9:12
[INFO] [stdout]   |
[INFO] [stdout] 9 |         if !char_opt.is_some_and(|cc| c == cc) {
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `char_opt.is_none_or(|cc| c != cc)`
[INFO] [stdout]   |
[INFO] [stdout]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#nonminimal_bool
[INFO] [stdout]   = note: `#[warn(clippy::nonminimal_bool)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]   --> src/bin/day4/main.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 |     return true;
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stdout]    = note: `#[warn(clippy::needless_return)]` on by default
[INFO] [stdout] help: remove `return`
[INFO] [stdout]    |
[INFO] [stdout] 13 -     return true;
[INFO] [stdout] 13 +     true
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: writing `&Vec` instead of `&[_]` involves a new object where a slice will do
[INFO] [stdout]  --> src/bin/day4/main.rs:3:22
[INFO] [stdout]   |
[INFO] [stdout] 3 | fn word_search(grid: &Vec<Vec<char>>, x: usize, y: usize, dx: isize, dy: isize) -> bool {
[INFO] [stdout]   |                      ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stdout]   = note: `#[warn(clippy::ptr_arg)]` on by default
[INFO] [stdout] help: change this to
[INFO] [stdout]   |
[INFO] [stdout] 3 - fn word_search(grid: &Vec<Vec<char>>, x: usize, y: usize, dx: isize, dy: isize) -> bool {
[INFO] [stdout] 3 + fn word_search(grid: &[Vec<char>], x: usize, y: usize, dx: isize, dy: isize) -> bool {
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: length comparison to zero
[INFO] [stdout]   --> src/bin/day4/main.rs:40:60
[INFO] [stdout]    |
[INFO] [stdout] 40 |     let grid: Vec<Vec<char>> = input.lines().filter(|line| line.len() > 0).map(|line| line.chars().collect()).collect();
[INFO] [stdout]    |                                                            ^^^^^^^^^^^^^^ help: using `!is_empty` is clearer and more explicit: `!line.is_empty()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stdout]    = note: `#[warn(clippy::len_zero)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: manual `!RangeInclusive::contains` implementation
[INFO] [stdout]   --> src/bin/day2/main.rs:19:12
[INFO] [stdout]    |
[INFO] [stdout] 19 |         if diff < 1 || diff > 3 {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^ help: use: `!(1..=3).contains(&diff)`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#manual_range_contains
[INFO] [stdout]    = note: `#[warn(clippy::manual_range_contains)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this expression creates a reference which is immediately dereferenced by the compiler
[INFO] [stdout]   --> src/bin/day2/main.rs:28:49
[INFO] [stdout]    |
[INFO] [stdout] 28 |     reports.into_iter().filter(|report| is_safe(&report)).count()
[INFO] [stdout]    |                                                 ^^^^^^^ help: change this to: `report`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_borrow
[INFO] [stdout]    = note: `#[warn(clippy::needless_borrow)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this expression creates a reference which is immediately dereferenced by the compiler
[INFO] [stdout]   --> src/bin/day2/main.rs:32:16
[INFO] [stdout]    |
[INFO] [stdout] 32 |     if is_safe(&report) {
[INFO] [stdout]    |                ^^^^^^^ help: change this to: `report`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_borrow
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this expression creates a reference which is immediately dereferenced by the compiler
[INFO] [stdout]   --> src/bin/day2/main.rs:48:60
[INFO] [stdout]    |
[INFO] [stdout] 48 |     reports.into_iter().filter(|report| safe_with_dampener(&report)).count()
[INFO] [stdout]    |                                                            ^^^^^^^ help: change this to: `report`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_borrow
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this boolean expression can be simplified
[INFO] [stdout]  --> src/bin/day4/main.rs:9:12
[INFO] [stdout]   |
[INFO] [stdout] 9 |         if !char_opt.is_some_and(|cc| c == cc) {
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `char_opt.is_none_or(|cc| c != cc)`
[INFO] [stdout]   |
[INFO] [stdout]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#nonminimal_bool
[INFO] [stdout]   = note: `#[warn(clippy::nonminimal_bool)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]   --> src/bin/day4/main.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 |     return true;
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stdout]    = note: `#[warn(clippy::needless_return)]` on by default
[INFO] [stdout] help: remove `return`
[INFO] [stdout]    |
[INFO] [stdout] 13 -     return true;
[INFO] [stdout] 13 +     true
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: writing `&Vec` instead of `&[_]` involves a new object where a slice will do
[INFO] [stdout]  --> src/bin/day4/main.rs:3:22
[INFO] [stdout]   |
[INFO] [stdout] 3 | fn word_search(grid: &Vec<Vec<char>>, x: usize, y: usize, dx: isize, dy: isize) -> bool {
[INFO] [stdout]   |                      ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stdout]   = note: `#[warn(clippy::ptr_arg)]` on by default
[INFO] [stdout] help: change this to
[INFO] [stdout]   |
[INFO] [stdout] 3 - fn word_search(grid: &Vec<Vec<char>>, x: usize, y: usize, dx: isize, dy: isize) -> bool {
[INFO] [stdout] 3 + fn word_search(grid: &[Vec<char>], x: usize, y: usize, dx: isize, dy: isize) -> bool {
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: length comparison to zero
[INFO] [stdout]   --> src/bin/day4/main.rs:40:60
[INFO] [stdout]    |
[INFO] [stdout] 40 |     let grid: Vec<Vec<char>> = input.lines().filter(|line| line.len() > 0).map(|line| line.chars().collect()).collect();
[INFO] [stdout]    |                                                            ^^^^^^^^^^^^^^ help: using `!is_empty` is clearer and more explicit: `!line.is_empty()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stdout]    = note: `#[warn(clippy::len_zero)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `HashMap`
[INFO] [stdout]  --> src/bin/day6/main.rs:1:33
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::collections::{HashSet, HashMap};
[INFO] [stdout]   |                                 ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `map` over `inspect`
[INFO] [stdout]   --> src/bin/day6/main.rs:24:10
[INFO] [stdout]    |
[INFO] [stdout] 24 |         .map(|line| {
[INFO] [stdout]    |          ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#manual_inspect
[INFO] [stdout]    = note: `#[warn(clippy::manual_inspect)]` on by default
[INFO] [stdout] help: try
[INFO] [stdout]    |
[INFO] [stdout] 24 ~         .inspect(|line| {
[INFO] [stdout] 25 |             height += 1;
[INFO] [stdout] 26 ~             width = std::cmp::max(width, line.len() as i32);
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: length comparison to zero
[INFO] [stdout]   --> src/bin/day6/main.rs:23:24
[INFO] [stdout]    |
[INFO] [stdout] 23 |         .filter(|line| line.len() > 0)
[INFO] [stdout]    |                        ^^^^^^^^^^^^^^ help: using `!is_empty` is clearer and more explicit: `!line.is_empty()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stdout]    = note: `#[warn(clippy::len_zero)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]   --> src/bin/day6/main.rs:70:5
[INFO] [stdout]    |
[INFO] [stdout] 70 |     return visited.len();
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stdout]    = note: `#[warn(clippy::needless_return)]` on by default
[INFO] [stdout] help: remove `return`
[INFO] [stdout]    |
[INFO] [stdout] 70 -     return visited.len();
[INFO] [stdout] 70 +     visited.len()
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]   --> src/bin/day6/main.rs:96:5
[INFO] [stdout]    |
[INFO] [stdout] 96 |     return false;
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stdout] help: remove `return`
[INFO] [stdout]    |
[INFO] [stdout] 96 -     return false;
[INFO] [stdout] 96 +     false
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `HashMap`
[INFO] [stdout]  --> src/bin/day6/main.rs:1:33
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::collections::{HashSet, HashMap};
[INFO] [stdout]   |                                 ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: writing `&Vec` instead of `&[_]` involves a new object where a slice will do
[INFO] [stdout]  --> src/bin/day10/main.rs:3:26
[INFO] [stdout]   |
[INFO] [stdout] 3 | fn score_trailhead(grid: &Vec<Vec<u8>>, head: (i32, i32), rows: i32, cols: i32) -> u32 {
[INFO] [stdout]   |                          ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stdout]   = note: `#[warn(clippy::ptr_arg)]` on by default
[INFO] [stdout] help: change this to
[INFO] [stdout]   |
[INFO] [stdout] 3 - fn score_trailhead(grid: &Vec<Vec<u8>>, head: (i32, i32), rows: i32, cols: i32) -> u32 {
[INFO] [stdout] 3 + fn score_trailhead(grid: &[Vec<u8>], head: (i32, i32), rows: i32, cols: i32) -> u32 {
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: redundant closure
[INFO] [stdout]   --> src/bin/day15/main.rs:98:56
[INFO] [stdout]    |
[INFO] [stdout] 98 |     let moves: Vec<Coord> = moves_str.chars().flat_map(|c| move_from_char(c)).collect();
[INFO] [stdout]    |                                                        ^^^^^^^^^^^^^^^^^^^^^ help: replace the closure with the function itself: `move_from_char`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_closure
[INFO] [stdout]    = note: `#[warn(clippy::redundant_closure)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]   --> src/bin/day10/main.rs:58:5
[INFO] [stdout]    |
[INFO] [stdout] 58 |     return total_score;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stdout]    = note: `#[warn(clippy::needless_return)]` on by default
[INFO] [stdout] help: remove `return`
[INFO] [stdout]    |
[INFO] [stdout] 58 -     return total_score;
[INFO] [stdout] 58 +     total_score
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: length comparison to zero
[INFO] [stdout]   --> src/bin/day10/main.rs:38:12
[INFO] [stdout]    |
[INFO] [stdout] 38 |         if line.len() == 0 {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `line.is_empty()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stdout]    = note: `#[warn(clippy::len_zero)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: length comparison to zero
[INFO] [stdout]   --> src/bin/day10/main.rs:68:12
[INFO] [stdout]    |
[INFO] [stdout] 68 |         if line.len() == 0 {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `line.is_empty()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: length comparison to zero
[INFO] [stdout]   --> src/bin/day7/main.rs:25:24
[INFO] [stdout]    |
[INFO] [stdout] 25 |         .filter(|line| line.len() > 0)
[INFO] [stdout]    |                        ^^^^^^^^^^^^^^ help: using `!is_empty` is clearer and more explicit: `!line.is_empty()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stdout]    = note: `#[warn(clippy::len_zero)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]   --> src/bin/day7/main.rs:37:17
[INFO] [stdout]    |
[INFO] [stdout] 37 |                 return new_possibilities;
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stdout]    = note: `#[warn(clippy::needless_return)]` on by default
[INFO] [stdout] help: remove `return`
[INFO] [stdout]    |
[INFO] [stdout] 37 -                 return new_possibilities;
[INFO] [stdout] 37 +                 new_possibilities
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]   --> src/bin/day7/main.rs:45:17
[INFO] [stdout]    |
[INFO] [stdout] 45 |                 return new_possibilities;
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stdout] help: remove `return`
[INFO] [stdout]    |
[INFO] [stdout] 45 -                 return new_possibilities;
[INFO] [stdout] 45 +                 new_possibilities
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: length comparison to zero
[INFO] [stdout]   --> src/bin/day7/main.rs:34:16
[INFO] [stdout]    |
[INFO] [stdout] 34 |             if possibilities.len() == 0 {
[INFO] [stdout]    |                ^^^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `possibilities.is_empty()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `map` over `inspect`
[INFO] [stdout]   --> src/bin/day6/main.rs:24:10
[INFO] [stdout]    |
[INFO] [stdout] 24 |         .map(|line| {
[INFO] [stdout]    |          ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#manual_inspect
[INFO] [stdout]    = note: `#[warn(clippy::manual_inspect)]` on by default
[INFO] [stdout] help: try
[INFO] [stdout]    |
[INFO] [stdout] 24 ~         .inspect(|line| {
[INFO] [stdout] 25 |             height += 1;
[INFO] [stdout] 26 ~             width = std::cmp::max(width, line.len() as i32);
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: length comparison to zero
[INFO] [stdout]   --> src/bin/day6/main.rs:23:24
[INFO] [stdout]    |
[INFO] [stdout] 23 |         .filter(|line| line.len() > 0)
[INFO] [stdout]    |                        ^^^^^^^^^^^^^^ help: using `!is_empty` is clearer and more explicit: `!line.is_empty()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stdout]    = note: `#[warn(clippy::len_zero)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]   --> src/bin/day6/main.rs:70:5
[INFO] [stdout]    |
[INFO] [stdout] 70 |     return visited.len();
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stdout]    = note: `#[warn(clippy::needless_return)]` on by default
[INFO] [stdout] help: remove `return`
[INFO] [stdout]    |
[INFO] [stdout] 70 -     return visited.len();
[INFO] [stdout] 70 +     visited.len()
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]   --> src/bin/day6/main.rs:96:5
[INFO] [stdout]    |
[INFO] [stdout] 96 |     return false;
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stdout] help: remove `return`
[INFO] [stdout]    |
[INFO] [stdout] 96 -     return false;
[INFO] [stdout] 96 +     false
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]   --> src/bin/day16/main.rs:94:5
[INFO] [stdout]    |
[INFO] [stdout] 94 |     return best_path(start_coord, end_coord, tiles);
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stdout]    = note: `#[warn(clippy::needless_return)]` on by default
[INFO] [stdout] help: remove `return`
[INFO] [stdout]    |
[INFO] [stdout] 94 -     return best_path(start_coord, end_coord, tiles);
[INFO] [stdout] 94 +     best_path(start_coord, end_coord, tiles)
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: length comparison to zero
[INFO] [stdout]   --> src/bin/day5/main.rs:13:24
[INFO] [stdout]    |
[INFO] [stdout] 13 |         .filter(|line| line.len() > 0);
[INFO] [stdout]    |                        ^^^^^^^^^^^^^^ help: using `!is_empty` is clearer and more explicit: `!line.is_empty()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stdout]    = note: `#[warn(clippy::len_zero)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]   --> src/bin/day5/main.rs:52:5
[INFO] [stdout]    |
[INFO] [stdout] 52 |     return result;
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stdout]    = note: `#[warn(clippy::needless_return)]` on by default
[INFO] [stdout] help: remove `return`
[INFO] [stdout]    |
[INFO] [stdout] 52 -     return result;
[INFO] [stdout] 52 +     result
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the loop variable `i` is used to index `disk`
[INFO] [stdout]   --> src/bin/day9/main.rs:57:14
[INFO] [stdout]    |
[INFO] [stdout] 57 |     for i in 0..disk.len() {
[INFO] [stdout]    |              ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_range_loop
[INFO] [stdout]    = note: `#[warn(clippy::needless_range_loop)]` on by default
[INFO] [stdout] help: consider using an iterator and enumerate()
[INFO] [stdout]    |
[INFO] [stdout] 57 -     for i in 0..disk.len() {
[INFO] [stdout] 57 +     for (i, <item>) in disk.iter().enumerate() {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: very complex type used. Consider factoring parts into `type` definitions
[INFO] [stdout]   --> src/bin/day8/main.rs:22:26
[INFO] [stdout]    |
[INFO] [stdout] 22 | fn parse(input: &str) -> (HashMap<char, Vec<(i32, i32)>>, i32, i32) {
[INFO] [stdout]    |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#type_complexity
[INFO] [stdout]    = note: `#[warn(clippy::type_complexity)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: length comparison to zero
[INFO] [stdout]   --> src/bin/day8/main.rs:26:50
[INFO] [stdout]    |
[INFO] [stdout] 26 |     for (x, line) in input.lines().filter(|line| line.len() > 0).enumerate() {
[INFO] [stdout]    |                                                  ^^^^^^^^^^^^^^ help: using `!is_empty` is clearer and more explicit: `!line.is_empty()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stdout]    = note: `#[warn(clippy::len_zero)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: iterating on a map's values
[INFO] [stdout]   --> src/bin/day8/main.rs:42:45
[INFO] [stdout]    |
[INFO] [stdout] 42 |       let antinode_set: HashSet<(i32, i32)> = antennas.into_iter()
[INFO] [stdout]    |  _____________________________________________^
[INFO] [stdout] 43 | |         .flat_map(|(_, a)| all_antinodes(a))
[INFO] [stdout]    | |____________________________________________^ help: try: `antennas.into_values().flat_map(|a| all_antinodes(a))`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#iter_kv_map
[INFO] [stdout]    = note: `#[warn(clippy::iter_kv_map)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this expression creates a reference which is immediately dereferenced by the compiler
[INFO] [stdout]   --> src/bin/day8/main.rs:84:46
[INFO] [stdout]    |
[INFO] [stdout] 84 |         .flat_map(|a_set| all_antinodes_pt_2(&a_set, rows, cols))
[INFO] [stdout]    |                                              ^^^^^^ help: change this to: `a_set`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_borrow
[INFO] [stdout]    = note: `#[warn(clippy::needless_borrow)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: writing `&Vec` instead of `&[_]` involves a new object where a slice will do
[INFO] [stdout]  --> src/bin/day10/main.rs:3:26
[INFO] [stdout]   |
[INFO] [stdout] 3 | fn score_trailhead(grid: &Vec<Vec<u8>>, head: (i32, i32), rows: i32, cols: i32) -> u32 {
[INFO] [stdout]   |                          ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stdout]   = note: `#[warn(clippy::ptr_arg)]` on by default
[INFO] [stdout] help: change this to
[INFO] [stdout]   |
[INFO] [stdout] 3 - fn score_trailhead(grid: &Vec<Vec<u8>>, head: (i32, i32), rows: i32, cols: i32) -> u32 {
[INFO] [stdout] 3 + fn score_trailhead(grid: &[Vec<u8>], head: (i32, i32), rows: i32, cols: i32) -> u32 {
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]   --> src/bin/day10/main.rs:58:5
[INFO] [stdout]    |
[INFO] [stdout] 58 |     return total_score;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stdout]    = note: `#[warn(clippy::needless_return)]` on by default
[INFO] [stdout] help: remove `return`
[INFO] [stdout]    |
[INFO] [stdout] 58 -     return total_score;
[INFO] [stdout] 58 +     total_score
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: length comparison to zero
[INFO] [stdout]   --> src/bin/day10/main.rs:38:12
[INFO] [stdout]    |
[INFO] [stdout] 38 |         if line.len() == 0 {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `line.is_empty()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stdout]    = note: `#[warn(clippy::len_zero)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: length comparison to zero
[INFO] [stdout]   --> src/bin/day10/main.rs:68:12
[INFO] [stdout]    |
[INFO] [stdout] 68 |         if line.len() == 0 {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `line.is_empty()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: redundant closure
[INFO] [stdout]   --> src/bin/day15/main.rs:98:56
[INFO] [stdout]    |
[INFO] [stdout] 98 |     let moves: Vec<Coord> = moves_str.chars().flat_map(|c| move_from_char(c)).collect();
[INFO] [stdout]    |                                                        ^^^^^^^^^^^^^^^^^^^^^ help: replace the closure with the function itself: `move_from_char`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_closure
[INFO] [stdout]    = note: `#[warn(clippy::redundant_closure)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `cost_to_reach` is never used
[INFO] [stdout]   --> src/bin/day13/main.rs:50:4
[INFO] [stdout]    |
[INFO] [stdout] 50 | fn cost_to_reach(coord: (i64, i64), machine: &Machine, cache: &mut HashMap<(i64, i64), u64>) -> Option<u64> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 8.77s
[INFO] running `Command { std: "docker" "inspect" "79cff669df45e94c543f3729d7dcbff48da687369889a1651e48154786b3877c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "79cff669df45e94c543f3729d7dcbff48da687369889a1651e48154786b3877c", kill_on_drop: false }`
[INFO] [stdout] 79cff669df45e94c543f3729d7dcbff48da687369889a1651e48154786b3877c