[INFO] cloning repository https://github.com/bakenzua/aoc_rust_2024
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/bakenzua/aoc_rust_2024" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbakenzua%2Faoc_rust_2024", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbakenzua%2Faoc_rust_2024'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4753e411239a9e08b90e6af7241248e321ac37f3
[INFO] linting bakenzua/aoc_rust_2024 against nightly for clippy-nonminimal_bool-denied
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbakenzua%2Faoc_rust_2024" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/bakenzua/aoc_rust_2024
[INFO] finished tweaking git repo https://github.com/bakenzua/aoc_rust_2024
[INFO] tweaked toml for git repo https://github.com/bakenzua/aoc_rust_2024 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/bakenzua/aoc_rust_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/bakenzua/aoc_rust_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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] f528f99a7abb44b2bda2186e865dc8c2af78fc2802bacffdfc4b340d45c61918
[INFO] running `Command { std: "docker" "start" "-a" "f528f99a7abb44b2bda2186e865dc8c2af78fc2802bacffdfc4b340d45c61918", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f528f99a7abb44b2bda2186e865dc8c2af78fc2802bacffdfc4b340d45c61918", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f528f99a7abb44b2bda2186e865dc8c2af78fc2802bacffdfc4b340d45c61918", kill_on_drop: false }`
[INFO] [stdout] f528f99a7abb44b2bda2186e865dc8c2af78fc2802bacffdfc4b340d45c61918
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 2a214634d994860da6538c833cff99d4d7d3ad9c5ce6c0779f42f5a5f56d3c9d
[INFO] running `Command { std: "docker" "start" "-a" "2a214634d994860da6538c833cff99d4d7d3ad9c5ce6c0779f42f5a5f56d3c9d", kill_on_drop: false }`
[INFO] [stderr]     Checking nom v7.1.3
[INFO] [stderr]     Checking itertools v0.13.0
[INFO] [stderr]     Checking aoc_rust_2024 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: redundant field names in struct initialization
[INFO] [stdout]    --> src/day_6.rs:186:46
[INFO] [stdout]     |
[INFO] [stdout] 186 |                 let coord = GridCoordinate { x: x, y: y };
[INFO] [stdout]     |                                              ^^^^ help: replace it with: `x`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stdout]     = note: `#[warn(clippy::redundant_field_names)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: redundant field names in struct initialization
[INFO] [stdout]    --> src/day_6.rs:186:52
[INFO] [stdout]     |
[INFO] [stdout] 186 |                 let coord = GridCoordinate { x: x, y: y };
[INFO] [stdout]     |                                                    ^^^^ help: replace it with: `y`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: redundant field names in struct initialization
[INFO] [stdout]    --> src/day_6.rs:241:9
[INFO] [stdout]     |
[INFO] [stdout] 241 |         obstacles: obstacles,
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^ help: replace it with: `obstacles`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: redundant field names in struct initialization
[INFO] [stdout]    --> src/day_6.rs:244:9
[INFO] [stdout]     |
[INFO] [stdout] 244 |         xmax: xmax,
[INFO] [stdout]     |         ^^^^^^^^^^ help: replace it with: `xmax`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: redundant field names in struct initialization
[INFO] [stdout]    --> src/day_6.rs:245:9
[INFO] [stdout]     |
[INFO] [stdout] 245 |         ymax: ymax,
[INFO] [stdout]     |         ^^^^^^^^^^ help: replace it with: `ymax`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: redundant field names in struct initialization
[INFO] [stdout]    --> src/day_6.rs:246:9
[INFO] [stdout]     |
[INFO] [stdout] 246 |         guardpos: guardpos,
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^ help: replace it with: `guardpos`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: redundant field names in struct initialization
[INFO] [stdout]    --> src/day_8.rs:193:9
[INFO] [stdout]     |
[INFO] [stdout] 193 |         antennas: antennas,
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^ help: replace it with: `antennas`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: redundant field names in struct initialization
[INFO] [stdout]    --> src/day_8.rs:194:9
[INFO] [stdout]     |
[INFO] [stdout] 194 |         antenna_types: antenna_types,
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `antenna_types`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: redundant field names in struct initialization
[INFO] [stdout]    --> src/day_8.rs:196:9
[INFO] [stdout]     |
[INFO] [stdout] 196 |         max_x: max_x,
[INFO] [stdout]     |         ^^^^^^^^^^^^ help: replace it with: `max_x`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: redundant field names in struct initialization
[INFO] [stdout]    --> src/day_8.rs:197:9
[INFO] [stdout]     |
[INFO] [stdout] 197 |         max_y: max_y,
[INFO] [stdout]     |         ^^^^^^^^^^^^ help: replace it with: `max_y`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Debug`
[INFO] [stdout]  --> src/day_17.rs:1:23
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{fmt::{self, Debug}, fs::read_to_string};
[INFO] [stdout]   |                       ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: redundant field names in struct initialization
[INFO] [stdout]    --> src/day_6.rs:186:46
[INFO] [stdout]     |
[INFO] [stdout] 186 |                 let coord = GridCoordinate { x: x, y: y };
[INFO] [stdout]     |                                              ^^^^ help: replace it with: `x`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stdout]     = note: `#[warn(clippy::redundant_field_names)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: redundant field names in struct initialization
[INFO] [stdout]    --> src/day_6.rs:186:52
[INFO] [stdout]     |
[INFO] [stdout] 186 |                 let coord = GridCoordinate { x: x, y: y };
[INFO] [stdout]     |                                                    ^^^^ help: replace it with: `y`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: redundant field names in struct initialization
[INFO] [stdout]    --> src/day_6.rs:241:9
[INFO] [stdout]     |
[INFO] [stdout] 241 |         obstacles: obstacles,
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^ help: replace it with: `obstacles`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: redundant field names in struct initialization
[INFO] [stdout]    --> src/day_6.rs:244:9
[INFO] [stdout]     |
[INFO] [stdout] 244 |         xmax: xmax,
[INFO] [stdout]     |         ^^^^^^^^^^ help: replace it with: `xmax`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: redundant field names in struct initialization
[INFO] [stdout]    --> src/day_6.rs:245:9
[INFO] [stdout]     |
[INFO] [stdout] 245 |         ymax: ymax,
[INFO] [stdout]     |         ^^^^^^^^^^ help: replace it with: `ymax`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: redundant field names in struct initialization
[INFO] [stdout]    --> src/day_6.rs:246:9
[INFO] [stdout]     |
[INFO] [stdout] 246 |         guardpos: guardpos,
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^ help: replace it with: `guardpos`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: redundant field names in struct initialization
[INFO] [stdout]    --> src/day_8.rs:193:9
[INFO] [stdout]     |
[INFO] [stdout] 193 |         antennas: antennas,
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^ help: replace it with: `antennas`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: redundant field names in struct initialization
[INFO] [stdout]    --> src/day_8.rs:194:9
[INFO] [stdout]     |
[INFO] [stdout] 194 |         antenna_types: antenna_types,
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `antenna_types`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: redundant field names in struct initialization
[INFO] [stdout]    --> src/day_8.rs:196:9
[INFO] [stdout]     |
[INFO] [stdout] 196 |         max_x: max_x,
[INFO] [stdout]     |         ^^^^^^^^^^^^ help: replace it with: `max_x`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: redundant field names in struct initialization
[INFO] [stdout]    --> src/day_8.rs:197:9
[INFO] [stdout]     |
[INFO] [stdout] 197 |         max_y: max_y,
[INFO] [stdout]     |         ^^^^^^^^^^^^ help: replace it with: `max_y`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Debug`
[INFO] [stdout]  --> src/day_17.rs:1:23
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{fmt::{self, Debug}, fs::read_to_string};
[INFO] [stdout]   |                       ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `registers`
[INFO] [stdout]   --> src/day_17.rs:49:19
[INFO] [stdout]    |
[INFO] [stdout] 49 |     let (_inout, (registers, instructions)) = parse(&file_str)
[INFO] [stdout]    |                   ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_registers`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `instructions`
[INFO] [stdout]   --> src/day_17.rs:49:30
[INFO] [stdout]    |
[INFO] [stdout] 49 |     let (_inout, (registers, instructions)) = parse(&file_str)
[INFO] [stdout]    |                              ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_instructions`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `parse_aoc_char_map` is never used
[INFO] [stdout]   --> src/aoc_utils.rs:70:8
[INFO] [stdout]    |
[INFO] [stdout] 70 | pub fn parse_aoc_char_map(file_path: &str) -> HashMap<(i32, i32), char> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Instructions` is never used
[INFO] [stdout]   --> src/day_17.rs:67:6
[INFO] [stdout]    |
[INFO] [stdout] 67 | enum Instructions {
[INFO] [stdout]    |      ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the variable `y` is used as a loop counter
[INFO] [stdout]   --> src/aoc_utils.rs:60:5
[INFO] [stdout]    |
[INFO] [stdout] 60 |     for line in file_lines {
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^ help: consider using: `for (y, line) in (0_i32..).zip(file_lines)`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `y` is of type `i32`, making it ineligible for `Iterator::enumerate`
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#explicit_counter_loop
[INFO] [stdout]    = note: `#[warn(clippy::explicit_counter_loop)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the variable `y` is used as a loop counter
[INFO] [stdout]   --> src/aoc_utils.rs:77:5
[INFO] [stdout]    |
[INFO] [stdout] 77 |     for line in file_lines {
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^ help: consider using: `for (y, line) in (0_i32..).zip(file_lines)`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `y` is of type `i32`, making it ineligible for `Iterator::enumerate`
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#explicit_counter_loop
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this boolean expression can be simplified
[INFO] [stdout]    --> src/aoc_utils.rs:146:5
[INFO] [stdout]     |
[INFO] [stdout] 146 |     !(*x < 10) && n_digits(x) % 2 == 0
[INFO] [stdout]     |     ^^^^^^^^^^ help: try: `(*x >= 10)`
[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/aoc_utils.rs:157:9
[INFO] [stdout]     |
[INFO] [stdout] 157 |         return Some(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] 157 -         return Some(result);
[INFO] [stdout] 157 +         Some(result)
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]    --> src/aoc_utils.rs:159:9
[INFO] [stdout]     |
[INFO] [stdout] 159 |         return None;
[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] 159 -         return None;
[INFO] [stdout] 159 +         None
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: you seem to be trying to use `match` for destructuring a single pattern. Consider using `if let`
[INFO] [stdout]   --> src/day_10.rs:39:13
[INFO] [stdout]    |
[INFO] [stdout] 39 | /             match nines_reachable_from(coord.0, &trail_map) {
[INFO] [stdout] 40 | |                 Some(mut nines) => {
[INFO] [stdout] 41 | |                     nines.sort_unstable();
[INFO] [stdout] 42 | |                     nines.dedup();
[INFO] [stdout] ...  |
[INFO] [stdout] 45 | |                 None => (),
[INFO] [stdout] 46 | |             }
[INFO] [stdout]    | |_____________^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stdout]    = note: `#[warn(clippy::single_match)]` on by default
[INFO] [stdout] help: try
[INFO] [stdout]    |
[INFO] [stdout] 39 ~             if let Some(mut nines) = nines_reachable_from(coord.0, &trail_map) {
[INFO] [stdout] 40 +                 nines.sort_unstable();
[INFO] [stdout] 41 +                 nines.dedup();
[INFO] [stdout] 42 +                 acc += nines.len() as i32;
[INFO] [stdout] 43 +             }
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: you seem to be trying to use `match` for destructuring a single pattern. Consider using `if let`
[INFO] [stdout]   --> src/day_10.rs:57:13
[INFO] [stdout]    |
[INFO] [stdout] 57 | /             match nines_reachable_from(coord.0, &trail_map) {
[INFO] [stdout] 58 | |                 Some(nines) => {
[INFO] [stdout] 59 | |                     acc += nines.len() as i32;
[INFO] [stdout] ...  |
[INFO] [stdout] 62 | |             }
[INFO] [stdout]    | |_____________^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stdout] help: try
[INFO] [stdout]    |
[INFO] [stdout] 57 ~             if let Some(nines) = nines_reachable_from(coord.0, &trail_map) {
[INFO] [stdout] 58 +                 acc += nines.len() as i32;
[INFO] [stdout] 59 +             }
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]    --> src/day_10.rs:127:9
[INFO] [stdout]     |
[INFO] [stdout] 127 |         return None;
[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] 127 -         return None;
[INFO] [stdout] 127 +         None
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]    --> src/day_10.rs:129:9
[INFO] [stdout]     |
[INFO] [stdout] 129 |         return Some(reachable_nines);
[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] 129 -         return Some(reachable_nines);
[INFO] [stdout] 129 +         Some(reachable_nines)
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]   --> src/day_10.rs:92:9
[INFO] [stdout]    |
[INFO] [stdout] 92 |         return reachable_nines;
[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] 92 -         return reachable_nines;
[INFO] [stdout] 92 +         reachable_nines
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this `if` can be collapsed into the outer `match`
[INFO] [stdout]   --> src/day_10.rs:80:17
[INFO] [stdout]    |
[INFO] [stdout] 80 | /                 if *e == current_elevation + 1 {
[INFO] [stdout] 81 | |                     let nines = nines_reachable_from(&coord, trail_map);
[INFO] [stdout] 82 | |                     match nines {
[INFO] [stdout] 83 | |                         Some(mut nines) => {
[INFO] [stdout] ...  |
[INFO] [stdout] 88 | |                 }
[INFO] [stdout]    | |_________________^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#collapsible_match
[INFO] [stdout]    = note: `#[warn(clippy::collapsible_match)]` on by default
[INFO] [stdout] help: collapse nested if block
[INFO] [stdout]    |
[INFO] [stdout] 79 ~             Some(e)
[INFO] [stdout] 80 ~                 if *e == current_elevation + 1 => {
[INFO] [stdout] 81 |                     let nines = nines_reachable_from(&coord, trail_map);
[INFO] [stdout] ...
[INFO] [stdout] 87 |                     }
[INFO] [stdout] 88 ~                 }
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: you seem to be trying to use `match` for destructuring a single pattern. Consider using `if let`
[INFO] [stdout]   --> src/day_10.rs:78:9
[INFO] [stdout]    |
[INFO] [stdout] 78 | /         match trail_map.get(&coord) {
[INFO] [stdout] 79 | |             Some(e) => {
[INFO] [stdout] 80 | |                 if *e == current_elevation + 1 {
[INFO] [stdout] 81 | |                     let nines = nines_reachable_from(&coord, trail_map);
[INFO] [stdout] ...  |
[INFO] [stdout] 90 | |             None => (),
[INFO] [stdout] 91 | |         }
[INFO] [stdout]    | |_________^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stdout] help: try
[INFO] [stdout]    |
[INFO] [stdout] 78 ~         if let Some(e) = trail_map.get(&coord) {
[INFO] [stdout] 79 +             if *e == current_elevation + 1 {
[INFO] [stdout] 80 +                 let nines = nines_reachable_from(&coord, trail_map);
[INFO] [stdout] 81 +                 match nines {
[INFO] [stdout] 82 +                     Some(mut nines) => {
[INFO] [stdout] 83 +                         _ = reachable_nines.append(&mut nines);
[INFO] [stdout] 84 +                     }
[INFO] [stdout] 85 +                     None => (),
[INFO] [stdout] 86 +                 }
[INFO] [stdout] 87 +             }
[INFO] [stdout] 88 +         }
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: you seem to be trying to use `match` for destructuring a single pattern. Consider using `if let`
[INFO] [stdout]   --> src/day_10.rs:82:21
[INFO] [stdout]    |
[INFO] [stdout] 82 | /                     match nines {
[INFO] [stdout] 83 | |                         Some(mut nines) => {
[INFO] [stdout] 84 | |                             _ = reachable_nines.append(&mut nines);
[INFO] [stdout] ...  |
[INFO] [stdout] 87 | |                     }
[INFO] [stdout]    | |_____________________^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stdout] help: try
[INFO] [stdout]    |
[INFO] [stdout] 82 ~                     if let Some(mut nines) = nines {
[INFO] [stdout] 83 +                         _ = reachable_nines.append(&mut nines);
[INFO] [stdout] 84 +                     }
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this let-binding has unit value
[INFO] [stdout]   --> src/day_10.rs:84:29
[INFO] [stdout]    |
[INFO] [stdout] 84 | ...                   _ = reachable_nines.append(&mut nines);
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#let_unit_value
[INFO] [stdout]    = note: `#[warn(clippy::let_unit_value)]` on by default
[INFO] [stdout] help: omit the `let` binding
[INFO] [stdout]    |
[INFO] [stdout] 84 -                             _ = reachable_nines.append(&mut nines);
[INFO] [stdout] 84 +                             reachable_nines.append(&mut nines);
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `clone` on type `(i32, i32)` which implements the `Copy` trait
[INFO] [stdout]   --> src/day_10.rs:95:25
[INFO] [stdout]    |
[INFO] [stdout] 95 |     let mut tmp_coord = coord.clone();
[INFO] [stdout]    |                         ^^^^^^^^^^^^^ help: try dereferencing it: `*coord`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_on_copy
[INFO] [stdout]    = note: `#[warn(clippy::clone_on_copy)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this let-binding has unit value
[INFO] [stdout]    --> src/day_10.rs:100:9
[INFO] [stdout]     |
[INFO] [stdout] 100 |         _ = reachable_nines.push(*coord);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#let_unit_value
[INFO] [stdout] help: omit the `let` binding
[INFO] [stdout]     |
[INFO] [stdout] 100 -         _ = reachable_nines.push(*coord);
[INFO] [stdout] 100 +         reachable_nines.push(*coord);
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `clone` on type `(i32, i32)` which implements the `Copy` trait
[INFO] [stdout]    --> src/day_10.rs:109:21
[INFO] [stdout]     |
[INFO] [stdout] 109 |         tmp_coord = coord.clone();
[INFO] [stdout]     |                     ^^^^^^^^^^^^^ help: try dereferencing it: `*coord`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_on_copy
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `clone` on type `(i32, i32)` which implements the `Copy` trait
[INFO] [stdout]    --> src/day_10.rs:115:21
[INFO] [stdout]     |
[INFO] [stdout] 115 |         tmp_coord = coord.clone();
[INFO] [stdout]     |                     ^^^^^^^^^^^^^ help: try dereferencing it: `*coord`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_on_copy
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `clone` on type `(i32, i32)` which implements the `Copy` trait
[INFO] [stdout]    --> src/day_10.rs:121:21
[INFO] [stdout]     |
[INFO] [stdout] 121 |         tmp_coord = coord.clone();
[INFO] [stdout]     |                     ^^^^^^^^^^^^^ help: try dereferencing it: `*coord`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_on_copy
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: found call to `str::trim` before `str::split_whitespace`
[INFO] [stdout]   --> src/day_11.rs:37:10
[INFO] [stdout]    |
[INFO] [stdout] 37 |           .trim()
[INFO] [stdout]    |  __________^
[INFO] [stdout] 38 | |         .split_whitespace()
[INFO] [stdout]    | |_________^ help: remove `trim()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#trim_split_whitespace
[INFO] [stdout]    = note: `#[warn(clippy::trim_split_whitespace)]` 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/day_11.rs:49:22
[INFO] [stdout]    |
[INFO] [stdout] 49 |     match stones.get(&stone) {
[INFO] [stdout]    |                      ^^^^^^ help: change this to: `stone`
[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: redundant closure
[INFO] [stdout]   --> src/day_2.rs:14:14
[INFO] [stdout]    |
[INFO] [stdout] 14 |         .map(|v| is_safe(v))
[INFO] [stdout]    |              ^^^^^^^^^^^^^^ help: replace the closure with the function itself: `is_safe`
[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: redundant closure
[INFO] [stdout]   --> src/day_2.rs:31:61
[INFO] [stdout]    |
[INFO] [stdout] 31 |         .map(|v| is_safe(v) | get_sub_reports(v).iter().any(|v| is_safe(v)))
[INFO] [stdout]    |                                                             ^^^^^^^^^^^^^^ help: replace the closure with the function itself: `is_safe`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_closure
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: writing `&Vec` instead of `&[_]` involves a new object where a slice will do
[INFO] [stdout]   --> src/day_2.rs:64:20
[INFO] [stdout]    |
[INFO] [stdout] 64 | fn is_safe(report: &Vec<i32>) -> 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] 64 - fn is_safe(report: &Vec<i32>) -> bool {
[INFO] [stdout] 64 + fn is_safe(report: &[i32]) -> bool {
[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/day_2.rs:74:28
[INFO] [stdout]    |
[INFO] [stdout] 74 | fn get_sub_reports(report: &Vec<i32>) -> Vec<Vec<i32>> {
[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] help: change this to
[INFO] [stdout]    |
[INFO] [stdout] 74 ~ fn get_sub_reports(report: &[i32]) -> Vec<Vec<i32>> {
[INFO] [stdout] 75 |     let mut sub_reports: Vec<Vec<i32>> = Vec::new();
[INFO] [stdout] 76 |
[INFO] [stdout] 77 |     for i in 0..report.len() {
[INFO] [stdout] 78 ~         let mut sub_report = report.to_owned();
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of `char::is_digit` with literal radix of 10
[INFO] [stdout]   --> src/day_3.rs:72:74
[INFO] [stdout]    |
[INFO] [stdout] 72 |                     while let Some(d) = corrupt_code_iter.next_if(|&chr| chr.is_digit(10)) {
[INFO] [stdout]    |                                                                          ^^^^^^^^^^^^^^^^ help: try: `chr.is_ascii_digit()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#is_digit_ascii_radix
[INFO] [stdout]    = note: `#[warn(clippy::is_digit_ascii_radix)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of `char::is_digit` with literal radix of 10
[INFO] [stdout]   --> src/day_3.rs:78:78
[INFO] [stdout]    |
[INFO] [stdout] 78 |                         while let Some(d) = corrupt_code_iter.next_if(|&chr| chr.is_digit(10)) {
[INFO] [stdout]    |                                                                              ^^^^^^^^^^^^^^^^ help: try: `chr.is_ascii_digit()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#is_digit_ascii_radix
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `clone` on type `GridCoordinate` which implements the `Copy` trait
[INFO] [stdout]   --> src/day_4.rs:54:44
[INFO] [stdout]    |
[INFO] [stdout] 54 |                 let mut current_location = pos.clone();
[INFO] [stdout]    |                                            ^^^^^^^^^^^ help: try dereferencing it: `*pos`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_on_copy
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: manual implementation of an assign operation
[INFO] [stdout]   --> src/day_4.rs:62:21
[INFO] [stdout]    |
[INFO] [stdout] 62 |                     score = score + 1;
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^^ help: replace it with: `score += 1`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stdout]    = note: `#[warn(clippy::assign_op_pattern)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `clone` on type `GridCoordinate` which implements the `Copy` trait
[INFO] [stdout]   --> src/day_4.rs:79:40
[INFO] [stdout]    |
[INFO] [stdout] 79 |             let mut current_location = pos.clone();
[INFO] [stdout]    |                                        ^^^^^^^^^^^ help: try dereferencing it: `*pos`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_on_copy
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this expression creates a reference which is immediately dereferenced by the compiler
[INFO] [stdout]   --> src/day_4.rs:94:33
[INFO] [stdout]    |
[INFO] [stdout] 94 |             if targets.contains(&&diag1.as_str()) && targets.contains(&&diag2.as_str()) {
[INFO] [stdout]    |                                 ^^^^^^^^^^^^^^^^ help: change this to: `(&diag1.as_str())`
[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/day_4.rs:94:71
[INFO] [stdout]    |
[INFO] [stdout] 94 |             if targets.contains(&&diag1.as_str()) && targets.contains(&&diag2.as_str()) {
[INFO] [stdout]    |                                                                       ^^^^^^^^^^^^^^^^ help: change this to: `(&diag2.as_str())`
[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: manual implementation of an assign operation
[INFO] [stdout]   --> src/day_4.rs:95:17
[INFO] [stdout]    |
[INFO] [stdout] 95 |                 score = score + 1;
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^ help: replace it with: `score += 1`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: comparison to empty slice
[INFO] [stdout]    --> src/day_5.rs:142:12
[INFO] [stdout]     |
[INFO] [stdout] 142 |         if 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#comparison_to_empty
[INFO] [stdout]     = note: `#[warn(clippy::comparison_to_empty)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]    --> src/day_5.rs:193:9
[INFO] [stdout]     |
[INFO] [stdout] 193 |         return RuleCheckResult::Fail;
[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] 193 -         return RuleCheckResult::Fail;
[INFO] [stdout] 193 +         RuleCheckResult::Fail
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]    --> src/day_5.rs:195:9
[INFO] [stdout]     |
[INFO] [stdout] 195 |         return RuleCheckResult::Pass;
[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] 195 -         return RuleCheckResult::Pass;
[INFO] [stdout] 195 +         RuleCheckResult::Pass
[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/day_5.rs:179:34
[INFO] [stdout]     |
[INFO] [stdout] 179 | fn update_rule_check(man_update: &Vec<i32>, rule: &(i32, i32)) -> RuleCheckResult {
[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] help: change this to
[INFO] [stdout]     |
[INFO] [stdout] 179 - fn update_rule_check(man_update: &Vec<i32>, rule: &(i32, i32)) -> RuleCheckResult {
[INFO] [stdout] 179 + fn update_rule_check(man_update: &[i32], rule: &(i32, i32)) -> RuleCheckResult {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `map` over `inspect`
[INFO] [stdout]   --> src/day_5_sort.rs:50:10
[INFO] [stdout]    |
[INFO] [stdout] 50 |         .map(|u| {
[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] 50 ~         .inspect(|u| {
[INFO] [stdout] 51 |             u.sort_by(|&a, &b| {
[INFO] [stdout] ...
[INFO] [stdout] 58 |                 }
[INFO] [stdout] 59 ~             });
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `registers`
[INFO] [stdout]   --> src/day_17.rs:49:19
[INFO] [stdout]    |
[INFO] [stdout] 49 |     let (_inout, (registers, instructions)) = parse(&file_str)
[INFO] [stdout]    |                   ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_registers`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `instructions`
[INFO] [stdout]   --> src/day_17.rs:49:30
[INFO] [stdout]    |
[INFO] [stdout] 49 |     let (_inout, (registers, instructions)) = parse(&file_str)
[INFO] [stdout]    |                              ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_instructions`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: comparison to empty slice
[INFO] [stdout]   --> src/day_5_sort.rs:82:12
[INFO] [stdout]    |
[INFO] [stdout] 82 |         if 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#comparison_to_empty
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]    --> src/day_6.rs:123:21
[INFO] [stdout]     |
[INFO] [stdout] 123 |                     return SuitLabDirection::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] help: remove `return`
[INFO] [stdout]     |
[INFO] [stdout] 123 -                     return SuitLabDirection::Right;
[INFO] [stdout] 123 +                     SuitLabDirection::Right
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]    --> src/day_6.rs:125:21
[INFO] [stdout]     |
[INFO] [stdout] 125 |                     return SuitLabDirection::OffMap;
[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] 125 -                     return SuitLabDirection::OffMap;
[INFO] [stdout] 125 +                     SuitLabDirection::OffMap
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]    --> src/day_6.rs:128:21
[INFO] [stdout]     |
[INFO] [stdout] 128 |                     return direction;
[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] 128 -                     return direction;
[INFO] [stdout] 128 +                     direction
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]    --> src/day_6.rs:136:21
[INFO] [stdout]     |
[INFO] [stdout] 136 |                     return SuitLabDirection::Up;
[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] 136 -                     return SuitLabDirection::Up;
[INFO] [stdout] 136 +                     SuitLabDirection::Up
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]    --> src/day_6.rs:138:21
[INFO] [stdout]     |
[INFO] [stdout] 138 |                     return SuitLabDirection::OffMap;
[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] 138 -                     return SuitLabDirection::OffMap;
[INFO] [stdout] 138 +                     SuitLabDirection::OffMap
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]    --> src/day_6.rs:141:21
[INFO] [stdout]     |
[INFO] [stdout] 141 |                     return direction;
[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] 141 -                     return direction;
[INFO] [stdout] 141 +                     direction
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]    --> src/day_6.rs:149:21
[INFO] [stdout]     |
[INFO] [stdout] 149 |                     return SuitLabDirection::Down;
[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] 149 -                     return SuitLabDirection::Down;
[INFO] [stdout] 149 +                     SuitLabDirection::Down
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]    --> src/day_6.rs:151:21
[INFO] [stdout]     |
[INFO] [stdout] 151 |                     return SuitLabDirection::OffMap;
[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] 151 -                     return SuitLabDirection::OffMap;
[INFO] [stdout] 151 +                     SuitLabDirection::OffMap
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]    --> src/day_6.rs:154:21
[INFO] [stdout]     |
[INFO] [stdout] 154 |                     return direction;
[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] 154 -                     return direction;
[INFO] [stdout] 154 +                     direction
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]    --> src/day_6.rs:162:21
[INFO] [stdout]     |
[INFO] [stdout] 162 |                     return SuitLabDirection::Left;
[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] 162 -                     return SuitLabDirection::Left;
[INFO] [stdout] 162 +                     SuitLabDirection::Left
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]    --> src/day_6.rs:164:21
[INFO] [stdout]     |
[INFO] [stdout] 164 |                     return SuitLabDirection::OffMap;
[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] 164 -                     return SuitLabDirection::OffMap;
[INFO] [stdout] 164 +                     SuitLabDirection::OffMap
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]    --> src/day_6.rs:167:21
[INFO] [stdout]     |
[INFO] [stdout] 167 |                     return direction;
[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] 167 -                     return direction;
[INFO] [stdout] 167 +                     direction
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]    --> src/day_6.rs:170:18
[INFO] [stdout]     |
[INFO] [stdout] 170 |             _ => return SuitLabDirection::OffMap,
[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] 170 -             _ => return SuitLabDirection::OffMap,
[INFO] [stdout] 170 +             _ => SuitLabDirection::OffMap,
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `parse_aoc_char_map` is never used
[INFO] [stdout]   --> src/aoc_utils.rs:70:8
[INFO] [stdout]    |
[INFO] [stdout] 70 | pub fn parse_aoc_char_map(file_path: &str) -> HashMap<(i32, i32), char> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Instructions` is never used
[INFO] [stdout]   --> src/day_17.rs:67:6
[INFO] [stdout]    |
[INFO] [stdout] 67 | enum Instructions {
[INFO] [stdout]    |      ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: returning the result of a `let` binding from a block
[INFO] [stdout]   --> src/day_7.rs:41:5
[INFO] [stdout]    |
[INFO] [stdout] 35 | /     let result = calibrations
[INFO] [stdout] 36 | |         .into_iter()
[INFO] [stdout] 37 | |         .filter(|x| eq_has_solutions(x.0, 0, &x.1))
[INFO] [stdout] 38 | |         .map(|x| x.0)
[INFO] [stdout] 39 | |         .sum();
[INFO] [stdout]    | |_______________- unnecessary `let` binding
[INFO] [stdout] 40 |
[INFO] [stdout] 41 |       result
[INFO] [stdout]    |       ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#let_and_return
[INFO] [stdout]    = note: `#[warn(clippy::let_and_return)]` on by default
[INFO] [stdout] help: return the expression directly
[INFO] [stdout]    |
[INFO] [stdout] 35 ~     
[INFO] [stdout] 36 |
[INFO] [stdout] 37 ~     calibrations
[INFO] [stdout] 38 +         .into_iter()
[INFO] [stdout] 39 +         .filter(|x| eq_has_solutions(x.0, 0, &x.1))
[INFO] [stdout] 40 +         .map(|x| x.0)
[INFO] [stdout] 41 +         .sum()
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the variable `y` is used as a loop counter
[INFO] [stdout]   --> src/aoc_utils.rs:60:5
[INFO] [stdout]    |
[INFO] [stdout] 60 |     for line in file_lines {
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^ help: consider using: `for (y, line) in (0_i32..).zip(file_lines)`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `y` is of type `i32`, making it ineligible for `Iterator::enumerate`
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#explicit_counter_loop
[INFO] [stdout]    = note: `#[warn(clippy::explicit_counter_loop)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: returning the result of a `let` binding from a block
[INFO] [stdout]   --> src/day_7.rs:66:5
[INFO] [stdout]    |
[INFO] [stdout] 60 | /     let result = calibrations
[INFO] [stdout] 61 | |         .into_iter()
[INFO] [stdout] 62 | |         .filter(|x| eq_has_solutions_part2(x.0, 0, &x.1))
[INFO] [stdout] 63 | |         .map(|x| x.0)
[INFO] [stdout] 64 | |         .sum();
[INFO] [stdout]    | |_______________- unnecessary `let` binding
[INFO] [stdout] 65 |
[INFO] [stdout] 66 |       result
[INFO] [stdout]    |       ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#let_and_return
[INFO] [stdout] help: return the expression directly
[INFO] [stdout]    |
[INFO] [stdout] 60 ~     
[INFO] [stdout] 61 |
[INFO] [stdout] 62 ~     calibrations
[INFO] [stdout] 63 +         .into_iter()
[INFO] [stdout] 64 +         .filter(|x| eq_has_solutions_part2(x.0, 0, &x.1))
[INFO] [stdout] 65 +         .map(|x| x.0)
[INFO] [stdout] 66 +         .sum()
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the variable `y` is used as a loop counter
[INFO] [stdout]   --> src/aoc_utils.rs:77:5
[INFO] [stdout]    |
[INFO] [stdout] 77 |     for line in file_lines {
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^ help: consider using: `for (y, line) in (0_i32..).zip(file_lines)`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `y` is of type `i32`, making it ineligible for `Iterator::enumerate`
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#explicit_counter_loop
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this boolean expression can be simplified
[INFO] [stdout]    --> src/aoc_utils.rs:146:5
[INFO] [stdout]     |
[INFO] [stdout] 146 |     !(*x < 10) && n_digits(x) % 2 == 0
[INFO] [stdout]     |     ^^^^^^^^^^ help: try: `(*x >= 10)`
[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/aoc_utils.rs:157:9
[INFO] [stdout]     |
[INFO] [stdout] 157 |         return Some(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] 157 -         return Some(result);
[INFO] [stdout] 157 +         Some(result)
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]    --> src/aoc_utils.rs:159:9
[INFO] [stdout]     |
[INFO] [stdout] 159 |         return None;
[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] 159 -         return None;
[INFO] [stdout] 159 +         None
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `clone` on type `(i64, i64)` which implements the `Copy` trait
[INFO] [stdout]   --> src/day_8.rs:99:41
[INFO] [stdout]    |
[INFO] [stdout] 99 |                     let mut tmp_coord = ant1.clone();
[INFO] [stdout]    |                                         ^^^^^^^^^^^^ help: try dereferencing it: `*ant1`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_on_copy
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `clone` on type `(i64, i64)` which implements the `Copy` trait
[INFO] [stdout]    --> src/day_8.rs:106:41
[INFO] [stdout]     |
[INFO] [stdout] 106 |                     let mut tmp_coord = ant2.clone();
[INFO] [stdout]     |                                         ^^^^^^^^^^^^ help: try dereferencing it: `*ant2`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_on_copy
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: you seem to be trying to use `match` for destructuring a single pattern. Consider using `if let`
[INFO] [stdout]    --> src/day_8.rs:140:17
[INFO] [stdout]     |
[INFO] [stdout] 140 | /                 match self.antennas.get(&coord) {
[INFO] [stdout] 141 | |                     Some(c) => insert_char = *c,
[INFO] [stdout] 142 | |                     _ => (),
[INFO] [stdout] 143 | |                 }
[INFO] [stdout]     | |_________________^ help: try: `if let Some(c) = self.antennas.get(&coord) { insert_char = *c }`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: you seem to be trying to use `match` for destructuring a single pattern. Consider using `if let`
[INFO] [stdout]    --> src/day_8.rs:144:17
[INFO] [stdout]     |
[INFO] [stdout] 144 | /                 match self.anti_nodes.get(&coord) {
[INFO] [stdout] 145 | |                     Some(c) => insert_char = '#',
[INFO] [stdout] 146 | |                     _ => (),
[INFO] [stdout] 147 | |                 }
[INFO] [stdout]     | |_________________^ help: try: `if let Some(c) = self.anti_nodes.get(&coord) { insert_char = '#' }`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: you seem to be trying to use `match` for destructuring a single pattern. Consider using `if let`
[INFO] [stdout]   --> src/day_10.rs:39:13
[INFO] [stdout]    |
[INFO] [stdout] 39 | /             match nines_reachable_from(coord.0, &trail_map) {
[INFO] [stdout] 40 | |                 Some(mut nines) => {
[INFO] [stdout] 41 | |                     nines.sort_unstable();
[INFO] [stdout] 42 | |                     nines.dedup();
[INFO] [stdout] ...  |
[INFO] [stdout] 45 | |                 None => (),
[INFO] [stdout] 46 | |             }
[INFO] [stdout]    | |_____________^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stdout]    = note: `#[warn(clippy::single_match)]` on by default
[INFO] [stdout] help: try
[INFO] [stdout]    |
[INFO] [stdout] 39 ~             if let Some(mut nines) = nines_reachable_from(coord.0, &trail_map) {
[INFO] [stdout] 40 +                 nines.sort_unstable();
[INFO] [stdout] 41 +                 nines.dedup();
[INFO] [stdout] 42 +                 acc += nines.len() as i32;
[INFO] [stdout] 43 +             }
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: you seem to be trying to use `match` for destructuring a single pattern. Consider using `if let`
[INFO] [stdout]   --> src/day_10.rs:57:13
[INFO] [stdout]    |
[INFO] [stdout] 57 | /             match nines_reachable_from(coord.0, &trail_map) {
[INFO] [stdout] 58 | |                 Some(nines) => {
[INFO] [stdout] 59 | |                     acc += nines.len() as i32;
[INFO] [stdout] ...  |
[INFO] [stdout] 62 | |             }
[INFO] [stdout]    | |_____________^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stdout] help: try
[INFO] [stdout]    |
[INFO] [stdout] 57 ~             if let Some(nines) = nines_reachable_from(coord.0, &trail_map) {
[INFO] [stdout] 58 +                 acc += nines.len() as i32;
[INFO] [stdout] 59 +             }
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]    --> src/day_10.rs:127:9
[INFO] [stdout]     |
[INFO] [stdout] 127 |         return None;
[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] 127 -         return None;
[INFO] [stdout] 127 +         None
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]    --> src/day_10.rs:129:9
[INFO] [stdout]     |
[INFO] [stdout] 129 |         return Some(reachable_nines);
[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] 129 -         return Some(reachable_nines);
[INFO] [stdout] 129 +         Some(reachable_nines)
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]   --> src/day_10.rs:92:9
[INFO] [stdout]    |
[INFO] [stdout] 92 |         return reachable_nines;
[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] 92 -         return reachable_nines;
[INFO] [stdout] 92 +         reachable_nines
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this `if` can be collapsed into the outer `match`
[INFO] [stdout]   --> src/day_10.rs:80:17
[INFO] [stdout]    |
[INFO] [stdout] 80 | /                 if *e == current_elevation + 1 {
[INFO] [stdout] 81 | |                     let nines = nines_reachable_from(&coord, trail_map);
[INFO] [stdout] 82 | |                     match nines {
[INFO] [stdout] 83 | |                         Some(mut nines) => {
[INFO] [stdout] ...  |
[INFO] [stdout] 88 | |                 }
[INFO] [stdout]    | |_________________^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#collapsible_match
[INFO] [stdout]    = note: `#[warn(clippy::collapsible_match)]` on by default
[INFO] [stdout] help: collapse nested if block
[INFO] [stdout]    |
[INFO] [stdout] 79 ~             Some(e)
[INFO] [stdout] 80 ~                 if *e == current_elevation + 1 => {
[INFO] [stdout] 81 |                     let nines = nines_reachable_from(&coord, trail_map);
[INFO] [stdout] ...
[INFO] [stdout] 87 |                     }
[INFO] [stdout] 88 ~                 }
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: you seem to be trying to use `match` for destructuring a single pattern. Consider using `if let`
[INFO] [stdout]   --> src/day_10.rs:78:9
[INFO] [stdout]    |
[INFO] [stdout] 78 | /         match trail_map.get(&coord) {
[INFO] [stdout] 79 | |             Some(e) => {
[INFO] [stdout] 80 | |                 if *e == current_elevation + 1 {
[INFO] [stdout] 81 | |                     let nines = nines_reachable_from(&coord, trail_map);
[INFO] [stdout] ...  |
[INFO] [stdout] 90 | |             None => (),
[INFO] [stdout] 91 | |         }
[INFO] [stdout]    | |_________^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stdout] help: try
[INFO] [stdout]    |
[INFO] [stdout] 78 ~         if let Some(e) = trail_map.get(&coord) {
[INFO] [stdout] 79 +             if *e == current_elevation + 1 {
[INFO] [stdout] 80 +                 let nines = nines_reachable_from(&coord, trail_map);
[INFO] [stdout] 81 +                 match nines {
[INFO] [stdout] 82 +                     Some(mut nines) => {
[INFO] [stdout] 83 +                         _ = reachable_nines.append(&mut nines);
[INFO] [stdout] 84 +                     }
[INFO] [stdout] 85 +                     None => (),
[INFO] [stdout] 86 +                 }
[INFO] [stdout] 87 +             }
[INFO] [stdout] 88 +         }
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: you seem to be trying to use `match` for destructuring a single pattern. Consider using `if let`
[INFO] [stdout]   --> src/day_10.rs:82:21
[INFO] [stdout]    |
[INFO] [stdout] 82 | /                     match nines {
[INFO] [stdout] 83 | |                         Some(mut nines) => {
[INFO] [stdout] 84 | |                             _ = reachable_nines.append(&mut nines);
[INFO] [stdout] ...  |
[INFO] [stdout] 87 | |                     }
[INFO] [stdout]    | |_____________________^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stdout] help: try
[INFO] [stdout]    |
[INFO] [stdout] 82 ~                     if let Some(mut nines) = nines {
[INFO] [stdout] 83 +                         _ = reachable_nines.append(&mut nines);
[INFO] [stdout] 84 +                     }
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this let-binding has unit value
[INFO] [stdout]   --> src/day_10.rs:84:29
[INFO] [stdout]    |
[INFO] [stdout] 84 | ...                   _ = reachable_nines.append(&mut nines);
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#let_unit_value
[INFO] [stdout]    = note: `#[warn(clippy::let_unit_value)]` on by default
[INFO] [stdout] help: omit the `let` binding
[INFO] [stdout]    |
[INFO] [stdout] 84 -                             _ = reachable_nines.append(&mut nines);
[INFO] [stdout] 84 +                             reachable_nines.append(&mut nines);
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `clone` on type `(i32, i32)` which implements the `Copy` trait
[INFO] [stdout]   --> src/day_10.rs:95:25
[INFO] [stdout]    |
[INFO] [stdout] 95 |     let mut tmp_coord = coord.clone();
[INFO] [stdout]    |                         ^^^^^^^^^^^^^ help: try dereferencing it: `*coord`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_on_copy
[INFO] [stdout]    = note: `#[warn(clippy::clone_on_copy)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this let-binding has unit value
[INFO] [stdout]    --> src/day_10.rs:100:9
[INFO] [stdout]     |
[INFO] [stdout] 100 |         _ = reachable_nines.push(*coord);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#let_unit_value
[INFO] [stdout] help: omit the `let` binding
[INFO] [stdout]     |
[INFO] [stdout] 100 -         _ = reachable_nines.push(*coord);
[INFO] [stdout] 100 +         reachable_nines.push(*coord);
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `clone` on type `(i32, i32)` which implements the `Copy` trait
[INFO] [stdout]    --> src/day_10.rs:109:21
[INFO] [stdout]     |
[INFO] [stdout] 109 |         tmp_coord = coord.clone();
[INFO] [stdout]     |                     ^^^^^^^^^^^^^ help: try dereferencing it: `*coord`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_on_copy
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `clone` on type `(i32, i32)` which implements the `Copy` trait
[INFO] [stdout]    --> src/day_10.rs:115:21
[INFO] [stdout]     |
[INFO] [stdout] 115 |         tmp_coord = coord.clone();
[INFO] [stdout]     |                     ^^^^^^^^^^^^^ help: try dereferencing it: `*coord`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_on_copy
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `clone` on type `(i32, i32)` which implements the `Copy` trait
[INFO] [stdout]    --> src/day_10.rs:121:21
[INFO] [stdout]     |
[INFO] [stdout] 121 |         tmp_coord = coord.clone();
[INFO] [stdout]     |                     ^^^^^^^^^^^^^ help: try dereferencing it: `*coord`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_on_copy
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: writing `&Vec` instead of `&[_]` involves a new object where a slice will do
[INFO] [stdout]   --> src/day_9.rs:88:19
[INFO] [stdout]    |
[INFO] [stdout] 88 | fn checksum(data: &Vec<Option<i64>>) -> i64 {
[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] help: change this to
[INFO] [stdout]    |
[INFO] [stdout] 88 - fn checksum(data: &Vec<Option<i64>>) -> i64 {
[INFO] [stdout] 88 + fn checksum(data: &[Option<i64>]) -> i64 {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `clone` on type `i64` which implements the `Copy` trait
[INFO] [stdout]   --> src/day_9.rs:89:5
[INFO] [stdout]    |
[INFO] [stdout] 89 | /     data.iter()
[INFO] [stdout] 90 | |         .enumerate()
[INFO] [stdout] 91 | |         .map(|(i, v)| match v {
[INFO] [stdout] 92 | |             Some(n) => (i as i64) * n,
[INFO] [stdout] ...  |
[INFO] [stdout] 95 | |         .sum::<i64>()
[INFO] [stdout] 96 | |         .clone()
[INFO] [stdout]    | |________________^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_on_copy
[INFO] [stdout] help: try removing the `clone` call
[INFO] [stdout]    |
[INFO] [stdout] 89 ~     data.iter()
[INFO] [stdout] 90 +         .enumerate()
[INFO] [stdout] 91 +         .map(|(i, v)| match v {
[INFO] [stdout] 92 +             Some(n) => (i as i64) * n,
[INFO] [stdout] 93 +             None => 0,
[INFO] [stdout] 94 +         })
[INFO] [stdout] 95 +         .sum::<i64>()
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this operation has no effect
[INFO] [stdout]   --> src/day_13.rs:41:21
[INFO] [stdout]    |
[INFO] [stdout] 41 |             None => acc + 0,
[INFO] [stdout]    |                     ^^^^^^^ help: consider reducing it to: `acc`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#identity_op
[INFO] [stdout]    = note: `#[warn(clippy::identity_op)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: casting to the same type is unnecessary (`i64` -> `i64`)
[INFO] [stdout]   --> src/day_13.rs:43:5
[INFO] [stdout]    |
[INFO] [stdout] 43 |     result as i64
[INFO] [stdout]    |     ^^^^^^^^^^^^^ help: try: `result`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unnecessary_cast
[INFO] [stdout]    = note: `#[warn(clippy::unnecessary_cast)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: returning the result of a `let` binding from a block
[INFO] [stdout]   --> src/day_13.rs:61:5
[INFO] [stdout]    |
[INFO] [stdout] 50 | /     let result = machines
[INFO] [stdout] 51 | |         .into_iter()
[INFO] [stdout] 52 | |         .map(|cm| ClawMachine {
[INFO] [stdout] 53 | |             button_a: cm.button_a,
[INFO] [stdout] ...  |
[INFO] [stdout] 59 | |             None => acc + 0,
[INFO] [stdout] 60 | |         });
[INFO] [stdout]    | |___________- unnecessary `let` binding
[INFO] [stdout] 61 |       result
[INFO] [stdout]    |       ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#let_and_return
[INFO] [stdout] help: return the expression directly
[INFO] [stdout]    |
[INFO] [stdout] 50 ~     
[INFO] [stdout] 51 ~     machines
[INFO] [stdout] 52 +         .into_iter()
[INFO] [stdout] 53 +         .map(|cm| ClawMachine {
[INFO] [stdout] 54 +             button_a: cm.button_a,
[INFO] [stdout] 55 +             button_b: cm.button_b,
[INFO] [stdout] 56 +             prize: (cm.prize.0 + increment, cm.prize.1 + increment),
[INFO] [stdout] 57 +         })
[INFO] [stdout] 58 +         .fold(0, |acc, m| match m.solve_claw_prize() {
[INFO] [stdout] 59 +             Some(p) => acc + p,
[INFO] [stdout] 60 +             None => acc + 0,
[INFO] [stdout] 61 +         })
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this operation has no effect
[INFO] [stdout]   --> src/day_13.rs:59:21
[INFO] [stdout]    |
[INFO] [stdout] 59 |             None => acc + 0,
[INFO] [stdout]    |                     ^^^^^^^ help: consider reducing it to: `acc`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#identity_op
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]   --> src/day_13.rs:68:13
[INFO] [stdout]    |
[INFO] [stdout] 68 | /             return (
[INFO] [stdout] 69 | |                 digits[1].parse::<i64>().unwrap(),
[INFO] [stdout] 70 | |                 digits[2].parse::<i64>().unwrap(),
[INFO] [stdout] 71 | |             )
[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] 68 ~             (
[INFO] [stdout] 69 +                 digits[1].parse::<i64>().unwrap(),
[INFO] [stdout] 70 +                 digits[2].parse::<i64>().unwrap(),
[INFO] [stdout] 71 +             )
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]   --> src/day_13.rs:80:13
[INFO] [stdout]    |
[INFO] [stdout] 80 | /             return (
[INFO] [stdout] 81 | |                 digits[1].parse::<i64>().unwrap(),
[INFO] [stdout] 82 | |                 digits[2].parse::<i64>().unwrap(),
[INFO] [stdout] 83 | |             )
[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] 80 ~             (
[INFO] [stdout] 81 +                 digits[1].parse::<i64>().unwrap(),
[INFO] [stdout] 82 +                 digits[2].parse::<i64>().unwrap(),
[INFO] [stdout] 83 +             )
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: found call to `str::trim` before `str::split_whitespace`
[INFO] [stdout]   --> src/day_11.rs:37:10
[INFO] [stdout]    |
[INFO] [stdout] 37 |           .trim()
[INFO] [stdout]    |  __________^
[INFO] [stdout] 38 | |         .split_whitespace()
[INFO] [stdout]    | |_________^ help: remove `trim()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#trim_split_whitespace
[INFO] [stdout]    = note: `#[warn(clippy::trim_split_whitespace)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]    --> src/day_13.rs:132:5
[INFO] [stdout]     |
[INFO] [stdout] 132 |     return machines;
[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] 132 -     return machines;
[INFO] [stdout] 132 +     machines
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this expression creates a reference which is immediately dereferenced by the compiler
[INFO] [stdout]   --> src/day_11.rs:49:22
[INFO] [stdout]    |
[INFO] [stdout] 49 |     match stones.get(&stone) {
[INFO] [stdout]    |                      ^^^^^^ help: change this to: `stone`
[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: using `clone` on type `ClawMachine` which implements the `Copy` trait
[INFO] [stdout]    --> src/day_13.rs:119:31
[INFO] [stdout]     |
[INFO] [stdout] 119 |                 machines.push(temp_machine.clone());
[INFO] [stdout]     |                               ^^^^^^^^^^^^^^^^^^^^ help: try removing the `clone` call: `temp_machine`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_on_copy
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]    --> src/day_13.rs:151:13
[INFO] [stdout]     |
[INFO] [stdout] 151 |             return Some((3 * dx / d) + (dy / d));
[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] 151 -             return Some((3 * dx / d) + (dy / d));
[INFO] [stdout] 151 +             Some((3 * dx / d) + (dy / d))
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]    --> src/day_13.rs:153:13
[INFO] [stdout]     |
[INFO] [stdout] 153 |             return None;
[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] 153 -             return None;
[INFO] [stdout] 153 +             None
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: manual implementation of an assign operation
[INFO] [stdout]   --> src/day_14.rs:50:17
[INFO] [stdout]    |
[INFO] [stdout] 50 |                 rb.0 = rb.0 + map_size.0
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `rb.0 += map_size.0`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: manual implementation of an assign operation
[INFO] [stdout]   --> src/day_14.rs:53:17
[INFO] [stdout]    |
[INFO] [stdout] 53 |                 rb.1 = rb.1 + map_size.1
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `rb.1 += map_size.1`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: manual implementation of an assign operation
[INFO] [stdout]   --> src/day_14.rs:81:21
[INFO] [stdout]    |
[INFO] [stdout] 81 |                     rb.0 = rb.0 + map_size.0
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `rb.0 += map_size.0`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: redundant closure
[INFO] [stdout]   --> src/day_2.rs:14:14
[INFO] [stdout]    |
[INFO] [stdout] 14 |         .map(|v| is_safe(v))
[INFO] [stdout]    |              ^^^^^^^^^^^^^^ help: replace the closure with the function itself: `is_safe`
[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: manual implementation of an assign operation
[INFO] [stdout]   --> src/day_14.rs:84:21
[INFO] [stdout]    |
[INFO] [stdout] 84 |                     rb.1 = rb.1 + map_size.1
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `rb.1 += map_size.1`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: redundant closure
[INFO] [stdout]   --> src/day_2.rs:31:61
[INFO] [stdout]    |
[INFO] [stdout] 31 |         .map(|v| is_safe(v) | get_sub_reports(v).iter().any(|v| is_safe(v)))
[INFO] [stdout]    |                                                             ^^^^^^^^^^^^^^ help: replace the closure with the function itself: `is_safe`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_closure
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this multiplication by -1 can be written more succinctly
[INFO] [stdout]    --> src/day_14.rs:105:21
[INFO] [stdout]     |
[INFO] [stdout] 105 |                     -1_f64 * (p * p.log2())
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^ help: consider using: `-(p * p.log2())`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#neg_multiply
[INFO] [stdout]     = note: `#[warn(clippy::neg_multiply)]` 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/day_2.rs:64:20
[INFO] [stdout]    |
[INFO] [stdout] 64 | fn is_safe(report: &Vec<i32>) -> 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] 64 - fn is_safe(report: &Vec<i32>) -> bool {
[INFO] [stdout] 64 + fn is_safe(report: &[i32]) -> bool {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]    --> src/day_14.rs:151:9
[INFO] [stdout]     |
[INFO] [stdout] 151 |         return Some(Quadrant::One);
[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] 151 -         return Some(Quadrant::One);
[INFO] [stdout] 151 +         Some(Quadrant::One)
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]    --> src/day_14.rs:153:9
[INFO] [stdout]     |
[INFO] [stdout] 153 |         return Some(Quadrant::Two);
[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] 153 -         return Some(Quadrant::Two);
[INFO] [stdout] 153 +         Some(Quadrant::Two)
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]    --> src/day_14.rs:155:9
[INFO] [stdout]     |
[INFO] [stdout] 155 |         return Some(Quadrant::Three);
[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] 155 -         return Some(Quadrant::Three);
[INFO] [stdout] 155 +         Some(Quadrant::Three)
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]    --> src/day_14.rs:157:9
[INFO] [stdout]     |
[INFO] [stdout] 157 |         return Some(Quadrant::Four);
[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] 157 -         return Some(Quadrant::Four);
[INFO] [stdout] 157 +         Some(Quadrant::Four)
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]    --> src/day_14.rs:159:9
[INFO] [stdout]     |
[INFO] [stdout] 159 |         return None;
[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] 159 -         return None;
[INFO] [stdout] 159 +         None
[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/day_2.rs:74:28
[INFO] [stdout]    |
[INFO] [stdout] 74 | fn get_sub_reports(report: &Vec<i32>) -> Vec<Vec<i32>> {
[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] help: change this to
[INFO] [stdout]    |
[INFO] [stdout] 74 ~ fn get_sub_reports(report: &[i32]) -> Vec<Vec<i32>> {
[INFO] [stdout] 75 |     let mut sub_reports: Vec<Vec<i32>> = Vec::new();
[INFO] [stdout] 76 |
[INFO] [stdout] 77 |     for i in 0..report.len() {
[INFO] [stdout] 78 ~         let mut sub_report = report.to_owned();
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of `char::is_digit` with literal radix of 10
[INFO] [stdout]   --> src/day_3.rs:72:74
[INFO] [stdout]    |
[INFO] [stdout] 72 |                     while let Some(d) = corrupt_code_iter.next_if(|&chr| chr.is_digit(10)) {
[INFO] [stdout]    |                                                                          ^^^^^^^^^^^^^^^^ help: try: `chr.is_ascii_digit()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#is_digit_ascii_radix
[INFO] [stdout]    = note: `#[warn(clippy::is_digit_ascii_radix)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of `char::is_digit` with literal radix of 10
[INFO] [stdout]   --> src/day_3.rs:78:78
[INFO] [stdout]    |
[INFO] [stdout] 78 |                         while let Some(d) = corrupt_code_iter.next_if(|&chr| chr.is_digit(10)) {
[INFO] [stdout]    |                                                                              ^^^^^^^^^^^^^^^^ help: try: `chr.is_ascii_digit()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#is_digit_ascii_radix
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]    --> src/day_3.rs:157:17
[INFO] [stdout]     |
[INFO] [stdout] 157 | /                 return read_to_string(EXAMPLE_1_FILEPATH)
[INFO] [stdout] 158 | |                     .expect("Error reading file: {file_path}");
[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] 157 ~                 read_to_string(EXAMPLE_1_FILEPATH)
[INFO] [stdout] 158 ~                     .expect("Error reading file: {file_path}")
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]    --> src/day_3.rs:161:17
[INFO] [stdout]     |
[INFO] [stdout] 161 | /                 return read_to_string(EXAMPLE_2_FILEPATH)
[INFO] [stdout] 162 | |                     .expect("Error reading file: {file_path}");
[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] 161 ~                 read_to_string(EXAMPLE_2_FILEPATH)
[INFO] [stdout] 162 ~                     .expect("Error reading file: {file_path}")
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `clone` on type `GridCoordinate` which implements the `Copy` trait
[INFO] [stdout]   --> src/day_4.rs:54:44
[INFO] [stdout]    |
[INFO] [stdout] 54 |                 let mut current_location = pos.clone();
[INFO] [stdout]    |                                            ^^^^^^^^^^^ help: try dereferencing it: `*pos`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_on_copy
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: manual implementation of an assign operation
[INFO] [stdout]   --> src/day_4.rs:62:21
[INFO] [stdout]    |
[INFO] [stdout] 62 |                     score = score + 1;
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^^ help: replace it with: `score += 1`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stdout]    = note: `#[warn(clippy::assign_op_pattern)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `clone` on type `GridCoordinate` which implements the `Copy` trait
[INFO] [stdout]   --> src/day_4.rs:79:40
[INFO] [stdout]    |
[INFO] [stdout] 79 |             let mut current_location = pos.clone();
[INFO] [stdout]    |                                        ^^^^^^^^^^^ help: try dereferencing it: `*pos`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_on_copy
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this expression creates a reference which is immediately dereferenced by the compiler
[INFO] [stdout]   --> src/day_4.rs:94:33
[INFO] [stdout]    |
[INFO] [stdout] 94 |             if targets.contains(&&diag1.as_str()) && targets.contains(&&diag2.as_str()) {
[INFO] [stdout]    |                                 ^^^^^^^^^^^^^^^^ help: change this to: `(&diag1.as_str())`
[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/day_4.rs:94:71
[INFO] [stdout]    |
[INFO] [stdout] 94 |             if targets.contains(&&diag1.as_str()) && targets.contains(&&diag2.as_str()) {
[INFO] [stdout]    |                                                                       ^^^^^^^^^^^^^^^^ help: change this to: `(&diag2.as_str())`
[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: manual implementation of an assign operation
[INFO] [stdout]   --> src/day_4.rs:95:17
[INFO] [stdout]    |
[INFO] [stdout] 95 |                 score = score + 1;
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^ help: replace it with: `score += 1`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: comparison to empty slice
[INFO] [stdout]    --> src/day_5.rs:142:12
[INFO] [stdout]     |
[INFO] [stdout] 142 |         if 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#comparison_to_empty
[INFO] [stdout]     = note: `#[warn(clippy::comparison_to_empty)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]    --> src/day_5.rs:193:9
[INFO] [stdout]     |
[INFO] [stdout] 193 |         return RuleCheckResult::Fail;
[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] 193 -         return RuleCheckResult::Fail;
[INFO] [stdout] 193 +         RuleCheckResult::Fail
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]    --> src/day_5.rs:195:9
[INFO] [stdout]     |
[INFO] [stdout] 195 |         return RuleCheckResult::Pass;
[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] 195 -         return RuleCheckResult::Pass;
[INFO] [stdout] 195 +         RuleCheckResult::Pass
[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/day_5.rs:179:34
[INFO] [stdout]     |
[INFO] [stdout] 179 | fn update_rule_check(man_update: &Vec<i32>, rule: &(i32, i32)) -> RuleCheckResult {
[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] help: change this to
[INFO] [stdout]     |
[INFO] [stdout] 179 - fn update_rule_check(man_update: &Vec<i32>, rule: &(i32, i32)) -> RuleCheckResult {
[INFO] [stdout] 179 + fn update_rule_check(man_update: &[i32], rule: &(i32, i32)) -> RuleCheckResult {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `map` over `inspect`
[INFO] [stdout]   --> src/day_5_sort.rs:50:10
[INFO] [stdout]    |
[INFO] [stdout] 50 |         .map(|u| {
[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] 50 ~         .inspect(|u| {
[INFO] [stdout] 51 |             u.sort_by(|&a, &b| {
[INFO] [stdout] ...
[INFO] [stdout] 58 |                 }
[INFO] [stdout] 59 ~             });
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: comparison to empty slice
[INFO] [stdout]   --> src/day_5_sort.rs:82:12
[INFO] [stdout]    |
[INFO] [stdout] 82 |         if 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#comparison_to_empty
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]    --> src/day_6.rs:123:21
[INFO] [stdout]     |
[INFO] [stdout] 123 |                     return SuitLabDirection::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] help: remove `return`
[INFO] [stdout]     |
[INFO] [stdout] 123 -                     return SuitLabDirection::Right;
[INFO] [stdout] 123 +                     SuitLabDirection::Right
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]    --> src/day_6.rs:125:21
[INFO] [stdout]     |
[INFO] [stdout] 125 |                     return SuitLabDirection::OffMap;
[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] 125 -                     return SuitLabDirection::OffMap;
[INFO] [stdout] 125 +                     SuitLabDirection::OffMap
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]    --> src/day_6.rs:128:21
[INFO] [stdout]     |
[INFO] [stdout] 128 |                     return direction;
[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] 128 -                     return direction;
[INFO] [stdout] 128 +                     direction
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]    --> src/day_6.rs:136:21
[INFO] [stdout]     |
[INFO] [stdout] 136 |                     return SuitLabDirection::Up;
[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] 136 -                     return SuitLabDirection::Up;
[INFO] [stdout] 136 +                     SuitLabDirection::Up
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]    --> src/day_6.rs:138:21
[INFO] [stdout]     |
[INFO] [stdout] 138 |                     return SuitLabDirection::OffMap;
[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] 138 -                     return SuitLabDirection::OffMap;
[INFO] [stdout] 138 +                     SuitLabDirection::OffMap
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]    --> src/day_6.rs:141:21
[INFO] [stdout]     |
[INFO] [stdout] 141 |                     return direction;
[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] 141 -                     return direction;
[INFO] [stdout] 141 +                     direction
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]    --> src/day_6.rs:149:21
[INFO] [stdout]     |
[INFO] [stdout] 149 |                     return SuitLabDirection::Down;
[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] 149 -                     return SuitLabDirection::Down;
[INFO] [stdout] 149 +                     SuitLabDirection::Down
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]    --> src/day_6.rs:151:21
[INFO] [stdout]     |
[INFO] [stdout] 151 |                     return SuitLabDirection::OffMap;
[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] 151 -                     return SuitLabDirection::OffMap;
[INFO] [stdout] 151 +                     SuitLabDirection::OffMap
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]    --> src/day_6.rs:154:21
[INFO] [stdout]     |
[INFO] [stdout] 154 |                     return direction;
[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] 154 -                     return direction;
[INFO] [stdout] 154 +                     direction
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]    --> src/day_6.rs:162:21
[INFO] [stdout]     |
[INFO] [stdout] 162 |                     return SuitLabDirection::Left;
[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] 162 -                     return SuitLabDirection::Left;
[INFO] [stdout] 162 +                     SuitLabDirection::Left
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]    --> src/day_6.rs:164:21
[INFO] [stdout]     |
[INFO] [stdout] 164 |                     return SuitLabDirection::OffMap;
[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] 164 -                     return SuitLabDirection::OffMap;
[INFO] [stdout] 164 +                     SuitLabDirection::OffMap
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]    --> src/day_6.rs:167:21
[INFO] [stdout]     |
[INFO] [stdout] 167 |                     return direction;
[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] 167 -                     return direction;
[INFO] [stdout] 167 +                     direction
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]    --> src/day_6.rs:170:18
[INFO] [stdout]     |
[INFO] [stdout] 170 |             _ => return SuitLabDirection::OffMap,
[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] 170 -             _ => return SuitLabDirection::OffMap,
[INFO] [stdout] 170 +             _ => SuitLabDirection::OffMap,
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: returning the result of a `let` binding from a block
[INFO] [stdout]   --> src/day_7.rs:41:5
[INFO] [stdout]    |
[INFO] [stdout] 35 | /     let result = calibrations
[INFO] [stdout] 36 | |         .into_iter()
[INFO] [stdout] 37 | |         .filter(|x| eq_has_solutions(x.0, 0, &x.1))
[INFO] [stdout] 38 | |         .map(|x| x.0)
[INFO] [stdout] 39 | |         .sum();
[INFO] [stdout]    | |_______________- unnecessary `let` binding
[INFO] [stdout] 40 |
[INFO] [stdout] 41 |       result
[INFO] [stdout]    |       ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#let_and_return
[INFO] [stdout]    = note: `#[warn(clippy::let_and_return)]` on by default
[INFO] [stdout] help: return the expression directly
[INFO] [stdout]    |
[INFO] [stdout] 35 ~     
[INFO] [stdout] 36 |
[INFO] [stdout] 37 ~     calibrations
[INFO] [stdout] 38 +         .into_iter()
[INFO] [stdout] 39 +         .filter(|x| eq_has_solutions(x.0, 0, &x.1))
[INFO] [stdout] 40 +         .map(|x| x.0)
[INFO] [stdout] 41 +         .sum()
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: returning the result of a `let` binding from a block
[INFO] [stdout]   --> src/day_7.rs:66:5
[INFO] [stdout]    |
[INFO] [stdout] 60 | /     let result = calibrations
[INFO] [stdout] 61 | |         .into_iter()
[INFO] [stdout] 62 | |         .filter(|x| eq_has_solutions_part2(x.0, 0, &x.1))
[INFO] [stdout] 63 | |         .map(|x| x.0)
[INFO] [stdout] 64 | |         .sum();
[INFO] [stdout]    | |_______________- unnecessary `let` binding
[INFO] [stdout] 65 |
[INFO] [stdout] 66 |       result
[INFO] [stdout]    |       ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#let_and_return
[INFO] [stdout] help: return the expression directly
[INFO] [stdout]    |
[INFO] [stdout] 60 ~     
[INFO] [stdout] 61 |
[INFO] [stdout] 62 ~     calibrations
[INFO] [stdout] 63 +         .into_iter()
[INFO] [stdout] 64 +         .filter(|x| eq_has_solutions_part2(x.0, 0, &x.1))
[INFO] [stdout] 65 +         .map(|x| x.0)
[INFO] [stdout] 66 +         .sum()
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: casting integer literal to `i64` is unnecessary
[INFO] [stdout]    --> src/day_7.rs:160:55
[INFO] [stdout]     |
[INFO] [stdout] 160 |         assert!(eq_has_solutions_part2(156, 15, &vec![6 as i64]));
[INFO] [stdout]     |                                                       ^^^^^^^^ help: try: `6_i64`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unnecessary_cast
[INFO] [stdout]     = note: `#[warn(clippy::unnecessary_cast)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: casting integer literal to `i64` is unnecessary
[INFO] [stdout]    --> src/day_7.rs:164:19
[INFO] [stdout]     |
[INFO] [stdout] 164 |             &vec![8 as i64, 6 as i64, 15 as i64]
[INFO] [stdout]     |                   ^^^^^^^^ help: try: `8_i64`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unnecessary_cast
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: casting integer literal to `i64` is unnecessary
[INFO] [stdout]    --> src/day_7.rs:164:29
[INFO] [stdout]     |
[INFO] [stdout] 164 |             &vec![8 as i64, 6 as i64, 15 as i64]
[INFO] [stdout]     |                             ^^^^^^^^ help: try: `6_i64`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unnecessary_cast
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: casting integer literal to `i64` is unnecessary
[INFO] [stdout]    --> src/day_7.rs:164:39
[INFO] [stdout]     |
[INFO] [stdout] 164 |             &vec![8 as i64, 6 as i64, 15 as i64]
[INFO] [stdout]     |                                       ^^^^^^^^^ help: try: `15_i64`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unnecessary_cast
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `clone` on type `(i64, i64)` which implements the `Copy` trait
[INFO] [stdout]   --> src/day_8.rs:99:41
[INFO] [stdout]    |
[INFO] [stdout] 99 |                     let mut tmp_coord = ant1.clone();
[INFO] [stdout]    |                                         ^^^^^^^^^^^^ help: try dereferencing it: `*ant1`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_on_copy
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `clone` on type `(i64, i64)` which implements the `Copy` trait
[INFO] [stdout]    --> src/day_8.rs:106:41
[INFO] [stdout]     |
[INFO] [stdout] 106 |                     let mut tmp_coord = ant2.clone();
[INFO] [stdout]     |                                         ^^^^^^^^^^^^ help: try dereferencing it: `*ant2`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_on_copy
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: you seem to be trying to use `match` for destructuring a single pattern. Consider using `if let`
[INFO] [stdout]    --> src/day_8.rs:140:17
[INFO] [stdout]     |
[INFO] [stdout] 140 | /                 match self.antennas.get(&coord) {
[INFO] [stdout] 141 | |                     Some(c) => insert_char = *c,
[INFO] [stdout] 142 | |                     _ => (),
[INFO] [stdout] 143 | |                 }
[INFO] [stdout]     | |_________________^ help: try: `if let Some(c) = self.antennas.get(&coord) { insert_char = *c }`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: you seem to be trying to use `match` for destructuring a single pattern. Consider using `if let`
[INFO] [stdout]    --> src/day_8.rs:144:17
[INFO] [stdout]     |
[INFO] [stdout] 144 | /                 match self.anti_nodes.get(&coord) {
[INFO] [stdout] 145 | |                     Some(c) => insert_char = '#',
[INFO] [stdout] 146 | |                     _ => (),
[INFO] [stdout] 147 | |                 }
[INFO] [stdout]     | |_________________^ help: try: `if let Some(c) = self.anti_nodes.get(&coord) { insert_char = '#' }`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: useless conversion to the same type: `std::collections::hash_map::Values<'_, (i64, i64), char>`
[INFO] [stdout]    --> src/day_8.rs:247:13
[INFO] [stdout]     |
[INFO] [stdout] 247 | /             antenna_map
[INFO] [stdout] 248 | |                 .antennas
[INFO] [stdout] 249 | |                 .values()
[INFO] [stdout] 250 | |                 .into_iter()
[INFO] [stdout]     | |____________________________^
[INFO] [stdout]     |
[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 `.into_iter()`
[INFO] [stdout]     |
[INFO] [stdout] 247 ~             antenna_map
[INFO] [stdout] 248 +                 .antennas
[INFO] [stdout] 249 +                 .values()
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: useless conversion to the same type: `std::collections::hash_map::Values<'_, (i64, i64), char>`
[INFO] [stdout]    --> src/day_8.rs:256:13
[INFO] [stdout]     |
[INFO] [stdout] 256 | /             antenna_map
[INFO] [stdout] 257 | |                 .antennas
[INFO] [stdout] 258 | |                 .values()
[INFO] [stdout] 259 | |                 .into_iter()
[INFO] [stdout]     | |____________________________^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_conversion
[INFO] [stdout] help: consider removing `.into_iter()`
[INFO] [stdout]     |
[INFO] [stdout] 256 ~             antenna_map
[INFO] [stdout] 257 +                 .antennas
[INFO] [stdout] 258 +                 .values()
[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/day_9.rs:88:19
[INFO] [stdout]    |
[INFO] [stdout] 88 | fn checksum(data: &Vec<Option<i64>>) -> i64 {
[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] help: change this to
[INFO] [stdout]    |
[INFO] [stdout] 88 - fn checksum(data: &Vec<Option<i64>>) -> i64 {
[INFO] [stdout] 88 + fn checksum(data: &[Option<i64>]) -> i64 {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `clone` on type `i64` which implements the `Copy` trait
[INFO] [stdout]   --> src/day_9.rs:89:5
[INFO] [stdout]    |
[INFO] [stdout] 89 | /     data.iter()
[INFO] [stdout] 90 | |         .enumerate()
[INFO] [stdout] 91 | |         .map(|(i, v)| match v {
[INFO] [stdout] 92 | |             Some(n) => (i as i64) * n,
[INFO] [stdout] ...  |
[INFO] [stdout] 95 | |         .sum::<i64>()
[INFO] [stdout] 96 | |         .clone()
[INFO] [stdout]    | |________________^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_on_copy
[INFO] [stdout] help: try removing the `clone` call
[INFO] [stdout]    |
[INFO] [stdout] 89 ~     data.iter()
[INFO] [stdout] 90 +         .enumerate()
[INFO] [stdout] 91 +         .map(|(i, v)| match v {
[INFO] [stdout] 92 +             Some(n) => (i as i64) * n,
[INFO] [stdout] 93 +             None => 0,
[INFO] [stdout] 94 +         })
[INFO] [stdout] 95 +         .sum::<i64>()
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this operation has no effect
[INFO] [stdout]   --> src/day_13.rs:41:21
[INFO] [stdout]    |
[INFO] [stdout] 41 |             None => acc + 0,
[INFO] [stdout]    |                     ^^^^^^^ help: consider reducing it to: `acc`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#identity_op
[INFO] [stdout]    = note: `#[warn(clippy::identity_op)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: casting to the same type is unnecessary (`i64` -> `i64`)
[INFO] [stdout]   --> src/day_13.rs:43:5
[INFO] [stdout]    |
[INFO] [stdout] 43 |     result as i64
[INFO] [stdout]    |     ^^^^^^^^^^^^^ help: try: `result`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unnecessary_cast
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: returning the result of a `let` binding from a block
[INFO] [stdout]   --> src/day_13.rs:61:5
[INFO] [stdout]    |
[INFO] [stdout] 50 | /     let result = machines
[INFO] [stdout] 51 | |         .into_iter()
[INFO] [stdout] 52 | |         .map(|cm| ClawMachine {
[INFO] [stdout] 53 | |             button_a: cm.button_a,
[INFO] [stdout] ...  |
[INFO] [stdout] 59 | |             None => acc + 0,
[INFO] [stdout] 60 | |         });
[INFO] [stdout]    | |___________- unnecessary `let` binding
[INFO] [stdout] 61 |       result
[INFO] [stdout]    |       ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#let_and_return
[INFO] [stdout] help: return the expression directly
[INFO] [stdout]    |
[INFO] [stdout] 50 ~     
[INFO] [stdout] 51 ~     machines
[INFO] [stdout] 52 +         .into_iter()
[INFO] [stdout] 53 +         .map(|cm| ClawMachine {
[INFO] [stdout] 54 +             button_a: cm.button_a,
[INFO] [stdout] 55 +             button_b: cm.button_b,
[INFO] [stdout] 56 +             prize: (cm.prize.0 + increment, cm.prize.1 + increment),
[INFO] [stdout] 57 +         })
[INFO] [stdout] 58 +         .fold(0, |acc, m| match m.solve_claw_prize() {
[INFO] [stdout] 59 +             Some(p) => acc + p,
[INFO] [stdout] 60 +             None => acc + 0,
[INFO] [stdout] 61 +         })
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this operation has no effect
[INFO] [stdout]   --> src/day_13.rs:59:21
[INFO] [stdout]    |
[INFO] [stdout] 59 |             None => acc + 0,
[INFO] [stdout]    |                     ^^^^^^^ help: consider reducing it to: `acc`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#identity_op
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]   --> src/day_13.rs:68:13
[INFO] [stdout]    |
[INFO] [stdout] 68 | /             return (
[INFO] [stdout] 69 | |                 digits[1].parse::<i64>().unwrap(),
[INFO] [stdout] 70 | |                 digits[2].parse::<i64>().unwrap(),
[INFO] [stdout] 71 | |             )
[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] 68 ~             (
[INFO] [stdout] 69 +                 digits[1].parse::<i64>().unwrap(),
[INFO] [stdout] 70 +                 digits[2].parse::<i64>().unwrap(),
[INFO] [stdout] 71 +             )
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]   --> src/day_13.rs:80:13
[INFO] [stdout]    |
[INFO] [stdout] 80 | /             return (
[INFO] [stdout] 81 | |                 digits[1].parse::<i64>().unwrap(),
[INFO] [stdout] 82 | |                 digits[2].parse::<i64>().unwrap(),
[INFO] [stdout] 83 | |             )
[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] 80 ~             (
[INFO] [stdout] 81 +                 digits[1].parse::<i64>().unwrap(),
[INFO] [stdout] 82 +                 digits[2].parse::<i64>().unwrap(),
[INFO] [stdout] 83 +             )
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]    --> src/day_13.rs:132:5
[INFO] [stdout]     |
[INFO] [stdout] 132 |     return machines;
[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] 132 -     return machines;
[INFO] [stdout] 132 +     machines
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `clone` on type `ClawMachine` which implements the `Copy` trait
[INFO] [stdout]    --> src/day_13.rs:119:31
[INFO] [stdout]     |
[INFO] [stdout] 119 |                 machines.push(temp_machine.clone());
[INFO] [stdout]     |                               ^^^^^^^^^^^^^^^^^^^^ help: try removing the `clone` call: `temp_machine`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_on_copy
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]    --> src/day_13.rs:151:13
[INFO] [stdout]     |
[INFO] [stdout] 151 |             return Some((3 * dx / d) + (dy / d));
[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] 151 -             return Some((3 * dx / d) + (dy / d));
[INFO] [stdout] 151 +             Some((3 * dx / d) + (dy / d))
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]    --> src/day_13.rs:153:13
[INFO] [stdout]     |
[INFO] [stdout] 153 |             return None;
[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] 153 -             return None;
[INFO] [stdout] 153 +             None
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this expression creates a reference which is immediately dereferenced by the compiler
[INFO] [stdout]    --> src/day_13.rs:208:37
[INFO] [stdout]     |
[INFO] [stdout] 208 |         let res = parse_button_line(&but_str);
[INFO] [stdout]     |                                     ^^^^^^^^ help: change this to: `but_str`
[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/day_13.rs:216:36
[INFO] [stdout]     |
[INFO] [stdout] 216 |         let res = parse_prize_line(&but_str);
[INFO] [stdout]     |                                    ^^^^^^^^ help: change this to: `but_str`
[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: manual implementation of an assign operation
[INFO] [stdout]   --> src/day_14.rs:50:17
[INFO] [stdout]    |
[INFO] [stdout] 50 |                 rb.0 = rb.0 + map_size.0
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `rb.0 += map_size.0`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: manual implementation of an assign operation
[INFO] [stdout]   --> src/day_14.rs:53:17
[INFO] [stdout]    |
[INFO] [stdout] 53 |                 rb.1 = rb.1 + map_size.1
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `rb.1 += map_size.1`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: manual implementation of an assign operation
[INFO] [stdout]   --> src/day_14.rs:81:21
[INFO] [stdout]    |
[INFO] [stdout] 81 |                     rb.0 = rb.0 + map_size.0
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `rb.0 += map_size.0`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: manual implementation of an assign operation
[INFO] [stdout]   --> src/day_14.rs:84:21
[INFO] [stdout]    |
[INFO] [stdout] 84 |                     rb.1 = rb.1 + map_size.1
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `rb.1 += map_size.1`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this multiplication by -1 can be written more succinctly
[INFO] [stdout]    --> src/day_14.rs:105:21
[INFO] [stdout]     |
[INFO] [stdout] 105 |                     -1_f64 * (p * p.log2())
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^ help: consider using: `-(p * p.log2())`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#neg_multiply
[INFO] [stdout]     = note: `#[warn(clippy::neg_multiply)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]    --> src/day_14.rs:151:9
[INFO] [stdout]     |
[INFO] [stdout] 151 |         return Some(Quadrant::One);
[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] 151 -         return Some(Quadrant::One);
[INFO] [stdout] 151 +         Some(Quadrant::One)
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]    --> src/day_14.rs:153:9
[INFO] [stdout]     |
[INFO] [stdout] 153 |         return Some(Quadrant::Two);
[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] 153 -         return Some(Quadrant::Two);
[INFO] [stdout] 153 +         Some(Quadrant::Two)
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]    --> src/day_14.rs:155:9
[INFO] [stdout]     |
[INFO] [stdout] 155 |         return Some(Quadrant::Three);
[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] 155 -         return Some(Quadrant::Three);
[INFO] [stdout] 155 +         Some(Quadrant::Three)
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]    --> src/day_14.rs:157:9
[INFO] [stdout]     |
[INFO] [stdout] 157 |         return Some(Quadrant::Four);
[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] 157 -         return Some(Quadrant::Four);
[INFO] [stdout] 157 +         Some(Quadrant::Four)
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]    --> src/day_14.rs:159:9
[INFO] [stdout]     |
[INFO] [stdout] 159 |         return None;
[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] 159 -         return None;
[INFO] [stdout] 159 +         None
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: useless use of `vec!`
[INFO] [stdout]    --> src/day_7.rs:160:49
[INFO] [stdout]     |
[INFO] [stdout] 160 |         assert!(eq_has_solutions_part2(156, 15, &vec![6 as i64]));
[INFO] [stdout]     |                                                 ^^^^^^^^^^^^^^^ help: you can use a slice directly: `&[6 as i64]`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_vec
[INFO] [stdout]     = note: `#[warn(clippy::useless_vec)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: useless use of `vec!`
[INFO] [stdout]    --> src/day_7.rs:164:13
[INFO] [stdout]     |
[INFO] [stdout] 164 |             &vec![8 as i64, 6 as i64, 15 as i64]
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: you can use a slice directly: `&[8 as i64, 6 as i64, 15 as i64]`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_vec
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.70s
[INFO] running `Command { std: "docker" "inspect" "2a214634d994860da6538c833cff99d4d7d3ad9c5ce6c0779f42f5a5f56d3c9d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2a214634d994860da6538c833cff99d4d7d3ad9c5ce6c0779f42f5a5f56d3c9d", kill_on_drop: false }`
[INFO] [stdout] 2a214634d994860da6538c833cff99d4d7d3ad9c5ce6c0779f42f5a5f56d3c9d