[INFO] cloning repository https://github.com/morphkurt/aoc-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/morphkurt/aoc-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmorphkurt%2Faoc-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmorphkurt%2Faoc-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 13a5bccd386116d566b5f3be737c0332f7cd3cbb
[INFO] linting morphkurt/aoc-rust against nightly for clippy-nonminimal_bool-denied
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmorphkurt%2Faoc-rust" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] removed /workspace/builds/worker-1-tc1/source/.cargo/config.toml
[INFO] started tweaking git repo https://github.com/morphkurt/aoc-rust
[INFO] finished tweaking git repo https://github.com/morphkurt/aoc-rust
[INFO] tweaked toml for git repo https://github.com/morphkurt/aoc-rust written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/morphkurt/aoc-rust 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/morphkurt/aoc-rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+nightly" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded mintex v0.1.2
[INFO] [stderr]   Downloaded tinyjson v2.5.1
[INFO] [stderr]   Downloaded scanf v1.2.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] a07749b7c931c617eee3278001793f5c9229686fba3cc11ed78b5edc7bc37f9b
[INFO] running `Command { std: "docker" "start" "-a" "a07749b7c931c617eee3278001793f5c9229686fba3cc11ed78b5edc7bc37f9b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a07749b7c931c617eee3278001793f5c9229686fba3cc11ed78b5edc7bc37f9b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a07749b7c931c617eee3278001793f5c9229686fba3cc11ed78b5edc7bc37f9b", kill_on_drop: false }`
[INFO] [stdout] a07749b7c931c617eee3278001793f5c9229686fba3cc11ed78b5edc7bc37f9b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 79cf008f22f1a8604f3271c5c93f2cefa12eb88c4ee1a9cfb3b7b5a7554fd21e
[INFO] running `Command { std: "docker" "start" "-a" "79cf008f22f1a8604f3271c5c93f2cefa12eb88c4ee1a9cfb3b7b5a7554fd21e", kill_on_drop: false }`
[INFO] [stderr]     Checking memchr v2.6.4
[INFO] [stderr]     Checking tinyjson v2.5.1
[INFO] [stderr]     Checking pico-args v0.5.0
[INFO] [stderr]     Checking aho-corasick v1.1.3
[INFO] [stderr]     Checking nom v7.1.3
[INFO] [stderr]     Checking regex-automata v0.4.9
[INFO] [stderr]     Checking scanf v1.2.1
[INFO] [stderr]     Checking regex v1.11.1
[INFO] [stderr]     Checking advent_of_code v0.11.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: called `Iterator::last` on a `DoubleEndedIterator`; this will needlessly iterate the entire iterator
[INFO] [stdout]    --> src/template/run_multi.rs:173:26
[INFO] [stdout]     |
[INFO] [stdout] 173 |           let str_timing = line
[INFO] [stdout]     |  __________________________^
[INFO] [stdout] 174 | |             .split(" samples)")
[INFO] [stdout] 175 | |             .next()?
[INFO] [stdout] 176 | |             .split('(')
[INFO] [stdout] 177 | |             .last()?
[INFO] [stdout]     | |___________________^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#double_ended_iterator_last
[INFO] [stdout]     = note: `#[warn(clippy::double_ended_iterator_last)]` on by default
[INFO] [stdout] help: try
[INFO] [stdout]     |
[INFO] [stdout] 177 -             .last()?
[INFO] [stdout] 177 +             .next_back()?
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: consider using `sort_unstable_by_key`
[INFO] [stdout]   --> src/template/timings.rs:54:9
[INFO] [stdout]    |
[INFO] [stdout] 54 |         data.sort_unstable_by(|a, b| a.day.cmp(&b.day));
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unnecessary_sort_by
[INFO] [stdout]    = note: `#[warn(clippy::unnecessary_sort_by)]` on by default
[INFO] [stdout] help: try
[INFO] [stdout]    |
[INFO] [stdout] 54 -         data.sort_unstable_by(|a, b| a.day.cmp(&b.day));
[INFO] [stdout] 54 +         data.sort_unstable_by_key(|a| a.day);
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this expression creates a reference which is immediately dereferenced by the compiler
[INFO] [stdout]   --> src/bin/19.rs:12:43
[INFO] [stdout]    |
[INFO] [stdout] 12 |         .filter(|&designs| count_possible(&designs, &towels, &mut memo) > 0)
[INFO] [stdout]    |                                           ^^^^^^^^ help: change this to: `designs`
[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: stripping a prefix manually
[INFO] [stdout]   --> src/bin/19.rs:25:37
[INFO] [stdout]    |
[INFO] [stdout] 25 |             count += count_possible(&pattern[towel.len()..], &towels, memo);
[INFO] [stdout]    |                                     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: the prefix was tested here
[INFO] [stdout]   --> src/bin/19.rs:24:9
[INFO] [stdout]    |
[INFO] [stdout] 24 |         if pattern.starts_with(towel) {
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#manual_strip
[INFO] [stdout]    = note: `#[warn(clippy::manual_strip)]` on by default
[INFO] [stdout] help: try using the `strip_prefix` method
[INFO] [stdout]    |
[INFO] [stdout] 24 ~         if let Some(<stripped>) = pattern.strip_prefix(towel) {
[INFO] [stdout] 25 ~             count += count_possible(<stripped>, &towels, memo);
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this expression creates a reference which is immediately dereferenced by the compiler
[INFO] [stdout]   --> src/bin/02.rs:18:20
[INFO] [stdout]    |
[INFO] [stdout] 18 |         if is_safe(&line) {
[INFO] [stdout]    |                    ^^^^^ help: change this to: `line`
[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 field names in struct initialization
[INFO] [stdout]    --> src/bin/18.rs:107:21
[INFO] [stdout]     |
[INFO] [stdout] 107 |                     route: route,
[INFO] [stdout]     |                     ^^^^^^^^^^^^ help: replace it with: `route`
[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: this expression creates a reference which is immediately dereferenced by the compiler
[INFO] [stdout]   --> src/bin/19.rs:25:62
[INFO] [stdout]    |
[INFO] [stdout] 25 |             count += count_possible(&pattern[towel.len()..], &towels, memo);
[INFO] [stdout]    |                                                              ^^^^^^^ help: change this to: `towels`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_borrow
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this expression creates a reference which is immediately dereferenced by the compiler
[INFO] [stdout]   --> src/bin/19.rs:39:40
[INFO] [stdout]    |
[INFO] [stdout] 39 |         .map(|&designs| count_possible(&designs, &towels, &mut memo))
[INFO] [stdout]    |                                        ^^^^^^^^ help: change this to: `designs`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_borrow
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this boolean expression can be simplified
[INFO] [stdout]   --> src/bin/02.rs:48:17
[INFO] [stdout]    |
[INFO] [stdout] 48 |         found = found && true;
[INFO] [stdout]    |                 ^^^^^^^^^^^^^ help: try: `found`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#nonminimal_bool
[INFO] [stdout]    = note: `#[warn(clippy::nonminimal_bool)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]   --> src/bin/02.rs:50:5
[INFO] [stdout]    |
[INFO] [stdout] 50 |     return found;
[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] 50 -     return found;
[INFO] [stdout] 50 +     found
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: writing `&Vec` instead of `&[_]` involves a new object where a slice will do
[INFO] [stdout]   --> src/bin/02.rs:37:18
[INFO] [stdout]    |
[INFO] [stdout] 37 | fn is_safe(line: &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] 37 - fn is_safe(line: &Vec<i32>) -> bool {
[INFO] [stdout] 37 + fn is_safe(line: &[i32]) -> bool {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `char::MAX` and `result`
[INFO] [stdout]  --> src/bin/17.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{char::MAX, result};
[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 imports: `IntoParallelIterator` and `StepBy`
[INFO] [stdout]  --> src/bin/17.rs:3:44
[INFO] [stdout]   |
[INFO] [stdout] 3 | use rayon::iter::{IndexedParallelIterator, IntoParallelIterator, ParallelIterator, StepBy};
[INFO] [stdout]   |                                            ^^^^^^^^^^^^^^^^^^^^                    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this `if` statement can be collapsed
[INFO] [stdout]    --> src/bin/04.rs:112:13
[INFO] [stdout]     |
[INFO] [stdout] 112 | /             if available.len() == 4 {
[INFO] [stdout] 113 | |                 if (available[0].c == Some('S') && available[3].c == Some('M')
[INFO] [stdout] 114 | |                     || available[0].c == Some('M') && available[3].c == Some('S'))
[INFO] [stdout] 115 | |                     && (available[1].c == Some('S') && available[2].c == Some('M')
[INFO] [stdout] ...   |
[INFO] [stdout] 120 | |             }
[INFO] [stdout]     | |_____________^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#collapsible_if
[INFO] [stdout]     = note: `#[warn(clippy::collapsible_if)]` on by default
[INFO] [stdout] help: collapse nested if block
[INFO] [stdout]     |
[INFO] [stdout] 112 ~             if available.len() == 4
[INFO] [stdout] 113 ~                 && (available[0].c == Some('S') && available[3].c == Some('M')
[INFO] [stdout] 114 |                     || available[0].c == Some('M') && available[3].c == Some('S'))
[INFO] [stdout] ...
[INFO] [stdout] 118 |                     result += 1;
[INFO] [stdout] 119 ~                 }
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: called `Iterator::last` on a `DoubleEndedIterator`; this will needlessly iterate the entire iterator
[INFO] [stdout]    --> src/template/run_multi.rs:173:26
[INFO] [stdout]     |
[INFO] [stdout] 173 |           let str_timing = line
[INFO] [stdout]     |  __________________________^
[INFO] [stdout] 174 | |             .split(" samples)")
[INFO] [stdout] 175 | |             .next()?
[INFO] [stdout] 176 | |             .split('(')
[INFO] [stdout] 177 | |             .last()?
[INFO] [stdout]     | |___________________^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#double_ended_iterator_last
[INFO] [stdout]     = note: `#[warn(clippy::double_ended_iterator_last)]` on by default
[INFO] [stdout] help: try
[INFO] [stdout]     |
[INFO] [stdout] 177 -             .last()?
[INFO] [stdout] 177 +             .next_back()?
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: you seem to use `.enumerate()` and immediately discard the index
[INFO] [stdout]   --> src/bin/18.rs:84:41
[INFO] [stdout]    |
[INFO] [stdout] 84 |         for (_, &(dx, dy)) in DIR.iter().enumerate() {
[INFO] [stdout]    |                                         ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_enumerate_index
[INFO] [stdout]    = note: `#[warn(clippy::unused_enumerate_index)]` on by default
[INFO] [stdout] help: remove the `.enumerate()` call
[INFO] [stdout]    |
[INFO] [stdout] 84 -         for (_, &(dx, dy)) in DIR.iter().enumerate() {
[INFO] [stdout] 84 +         for &(dx, dy) in DIR.iter() {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: consider using `sort_unstable_by_key`
[INFO] [stdout]   --> src/template/timings.rs:54:9
[INFO] [stdout]    |
[INFO] [stdout] 54 |         data.sort_unstable_by(|a, b| a.day.cmp(&b.day));
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unnecessary_sort_by
[INFO] [stdout]    = note: `#[warn(clippy::unnecessary_sort_by)]` on by default
[INFO] [stdout] help: try
[INFO] [stdout]    |
[INFO] [stdout] 54 -         data.sort_unstable_by(|a, b| a.day.cmp(&b.day));
[INFO] [stdout] 54 +         data.sort_unstable_by_key(|a| a.day);
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: writing `&Vec` instead of `&[_]` involves a new object where a slice will do
[INFO] [stdout]    --> src/bin/04.rs:143:22
[INFO] [stdout]     |
[INFO] [stdout] 143 | fn get_point(points: &Vec<Point>, x: usize, y: usize, w: usize) -> &Point {
[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] 143 - fn get_point(points: &Vec<Point>, x: usize, y: usize, w: usize) -> &Point {
[INFO] [stdout] 143 + fn get_point(points: &[Point], x: usize, y: usize, w: usize) -> &Point {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this expression creates a reference which is immediately dereferenced by the compiler
[INFO] [stdout]    --> src/bin/04.rs:160:42
[INFO] [stdout]     |
[INFO] [stdout] 160 |                 let neighbor = get_point(&points, x as usize, y as usize, width);
[INFO] [stdout]     |                                          ^^^^^^^ help: change this to: `points`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_borrow
[INFO] [stdout]     = note: `#[warn(clippy::needless_borrow)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]    --> src/bin/04.rs:194:5
[INFO] [stdout]     |
[INFO] [stdout] 194 |     return false;
[INFO] [stdout]     |     ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stdout]     = note: `#[warn(clippy::needless_return)]` on by default
[INFO] [stdout] help: remove `return`
[INFO] [stdout]     |
[INFO] [stdout] 194 -     return false;
[INFO] [stdout] 194 +     false
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this expression creates a reference which is immediately dereferenced by the compiler
[INFO] [stdout]    --> src/bin/04.rs:190:38
[INFO] [stdout]     |
[INFO] [stdout] 190 |             let neighbor = get_point(&points, x as usize, y as usize, width);
[INFO] [stdout]     |                                      ^^^^^^^ help: change this to: `points`
[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: redundant field names in struct initialization
[INFO] [stdout]   --> src/bin/10.rs:65:33
[INFO] [stdout]    |
[INFO] [stdout] 65 | ...                   x: x,
[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/bin/10.rs:66:33
[INFO] [stdout]    |
[INFO] [stdout] 66 | ...                   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/bin/10.rs:102:33
[INFO] [stdout]     |
[INFO] [stdout] 102 | ...                   x: x,
[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] 
[INFO] [stdout] 
[INFO] [stdout] warning: redundant field names in struct initialization
[INFO] [stdout]    --> src/bin/10.rs:103:33
[INFO] [stdout]     |
[INFO] [stdout] 103 | ...                   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: the loop variable `i` is used to index `file_system`
[INFO] [stdout]   --> src/bin/09.rs:39:14
[INFO] [stdout]    |
[INFO] [stdout] 39 |     for i in 0..file_system.len() {
[INFO] [stdout]    |              ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_range_loop
[INFO] [stdout]    = note: `#[warn(clippy::needless_range_loop)]` on by default
[INFO] [stdout] help: consider using an iterator and enumerate()
[INFO] [stdout]    |
[INFO] [stdout] 39 -     for i in 0..file_system.len() {
[INFO] [stdout] 39 +     for (i, <item>) in file_system.iter().enumerate() {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]   --> src/bin/09.rs:94:5
[INFO] [stdout]    |
[INFO] [stdout] 94 |     return Some(sum);
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stdout]    = note: `#[warn(clippy::needless_return)]` on by default
[INFO] [stdout] help: remove `return`
[INFO] [stdout]    |
[INFO] [stdout] 94 -     return Some(sum);
[INFO] [stdout] 94 +     Some(sum)
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `IndexedParallelIterator`
[INFO] [stdout]  --> src/bin/17.rs:3:19
[INFO] [stdout]   |
[INFO] [stdout] 3 | use rayon::iter::{IndexedParallelIterator, IntoParallelIterator, ParallelIterator, StepBy};
[INFO] [stdout]   |                   ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ParallelIterator`
[INFO] [stdout]  --> src/bin/17.rs:3:66
[INFO] [stdout]   |
[INFO] [stdout] 3 | use rayon::iter::{IndexedParallelIterator, IntoParallelIterator, ParallelIterator, StepBy};
[INFO] [stdout]   |                                                                  ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: length comparison to zero
[INFO] [stdout]   --> src/bin/07.rs:24:23
[INFO] [stdout]    |
[INFO] [stdout] 24 |         'outer: while to_observe.len() > 0 {
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^^^^^^ help: using `!is_empty` is clearer and more explicit: `!to_observe.is_empty()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stdout]    = note: `#[warn(clippy::len_zero)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: length comparison to zero
[INFO] [stdout]   --> src/bin/07.rs:35:46
[INFO] [stdout]    |
[INFO] [stdout] 35 |                     if result < totals[i] && current.len() > 0 {
[INFO] [stdout]    |                                              ^^^^^^^^^^^^^^^^^ help: using `!is_empty` is clearer and more explicit: `!current.is_empty()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: casting to the same type is unnecessary (`u64` -> `u64`)
[INFO] [stdout]   --> src/bin/07.rs:44:10
[INFO] [stdout]    |
[INFO] [stdout] 44 |     Some(sum as u64)
[INFO] [stdout]    |          ^^^^^^^^^^ help: try: `sum`
[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: length comparison to zero
[INFO] [stdout]   --> src/bin/07.rs:53:23
[INFO] [stdout]    |
[INFO] [stdout] 53 |         'outer: while to_observe.len() > 0 {
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^^^^^^ help: using `!is_empty` is clearer and more explicit: `!to_observe.is_empty()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: length comparison to zero
[INFO] [stdout]   --> src/bin/07.rs:64:46
[INFO] [stdout]    |
[INFO] [stdout] 64 |                     if result < totals[i] && current.len() > 0 {
[INFO] [stdout]    |                                              ^^^^^^^^^^^^^^^^^ help: using `!is_empty` is clearer and more explicit: `!current.is_empty()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: casting to the same type is unnecessary (`u64` -> `u64`)
[INFO] [stdout]   --> src/bin/07.rs:73:10
[INFO] [stdout]    |
[INFO] [stdout] 73 |     Some(sum as u64)
[INFO] [stdout]    |          ^^^^^^^^^^ help: try: `sum`
[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: the variable `file_id` is used as a loop counter
[INFO] [stdout]    --> src/bin/09.rs:101:5
[INFO] [stdout]     |
[INFO] [stdout] 101 |     for chunk in input.chars().collect::<Vec<_>>().chunks(2) {
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using: `for (file_id, chunk) in input.chars().collect::<Vec<_>>().chunks(2).enumerate()`
[INFO] [stdout]     |
[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: accessing first element with `chunk.get(0)`
[INFO] [stdout]    --> src/bin/09.rs:102:39
[INFO] [stdout]     |
[INFO] [stdout] 102 |         if let Some(&file_len_char) = chunk.get(0) {
[INFO] [stdout]     |                                       ^^^^^^^^^^^^ help: try: `chunk.first()`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_first
[INFO] [stdout]     = note: `#[warn(clippy::get_first)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]    --> src/bin/09.rs:144:5
[INFO] [stdout]     |
[INFO] [stdout] 144 |     return (free_space, used_space);
[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] 144 -     return (free_space, used_space);
[INFO] [stdout] 144 +     (free_space, used_space)
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the variable `file_id` is used as a loop counter
[INFO] [stdout]    --> src/bin/09.rs:123:5
[INFO] [stdout]     |
[INFO] [stdout] 123 |     for chunk in input.chars().collect::<Vec<_>>().chunks(2) {
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using: `for (file_id, chunk) in input.chars().collect::<Vec<_>>().chunks(2).enumerate()`
[INFO] [stdout]     |
[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: accessing first element with `chunk.get(0)`
[INFO] [stdout]    --> src/bin/09.rs:124:39
[INFO] [stdout]     |
[INFO] [stdout] 124 |         if let Some(&file_len_char) = chunk.get(0) {
[INFO] [stdout]     |                                       ^^^^^^^^^^^^ help: try: `chunk.first()`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_first
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `result`
[INFO] [stdout]    --> src/bin/17.rs:102:9
[INFO] [stdout]     |
[INFO] [stdout] 102 |     let result: Vec<Vec<u64>> = (165323019388784..165363019388784)
[INFO] [stdout]     |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_result`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: very complex type used. Consider factoring parts into `type` definitions
[INFO] [stdout]  --> src/bin/17.rs:7:16
[INFO] [stdout]   |
[INFO] [stdout] 7 | const OPCODES: [fn(Vec<u64>, u64) -> (Vec<u64>, Option<u64>); 8] =
[INFO] [stdout]   |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#type_complexity
[INFO] [stdout]   = note: `#[warn(clippy::type_complexity)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: casting integer literal to `f64` is unnecessary
[INFO] [stdout]   --> src/bin/17.rs:39:24
[INFO] [stdout]    |
[INFO] [stdout] 39 |     reg[1] = reg[0] / ((2 as f64).powf(v as f64) as u64);
[INFO] [stdout]    |                        ^^^^^^^^^^ help: try: `2_f64`
[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 `f64` is unnecessary
[INFO] [stdout]   --> src/bin/17.rs:46:24
[INFO] [stdout]    |
[INFO] [stdout] 46 |     reg[2] = reg[0] / ((2 as f64).powf(v as f64) as u64);
[INFO] [stdout]    |                        ^^^^^^^^^^ help: try: `2_f64`
[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: manual implementation of an assign operation
[INFO] [stdout]   --> src/bin/17.rs:53:5
[INFO] [stdout]    |
[INFO] [stdout] 53 |     reg[0] = reg[0] / ((2 as f64).powf(v as f64) as u64);
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `reg[0] /= ((2 as f64).powf(v as f64) as u64)`
[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: casting integer literal to `f64` is unnecessary
[INFO] [stdout]   --> src/bin/17.rs:53:24
[INFO] [stdout]    |
[INFO] [stdout] 53 |     reg[0] = reg[0] / ((2 as f64).powf(v as f64) as u64);
[INFO] [stdout]    |                        ^^^^^^^^^^ help: try: `2_f64`
[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: manual implementation of an assign operation
[INFO] [stdout]   --> src/bin/17.rs:58:5
[INFO] [stdout]    |
[INFO] [stdout] 58 |     r[1] = r[1] ^ operand;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `r[1] ^= operand`
[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/bin/17.rs:63:5
[INFO] [stdout]    |
[INFO] [stdout] 63 |     r[1] = r[1] ^ r[2];
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^ help: replace it with: `r[1] ^= r[2]`
[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: called `unwrap` on `s` after checking its variant with `is_some`
[INFO] [stdout]   --> src/bin/17.rs:83:26
[INFO] [stdout]    |
[INFO] [stdout] 82 |             if s.is_some() {
[INFO] [stdout]    |             -------------- help: try: `if let Some(<item>) = s`
[INFO] [stdout] 83 |                 out.push(s.unwrap());
[INFO] [stdout]    |                          ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unnecessary_unwrap
[INFO] [stdout]    = note: `#[warn(clippy::unnecessary_unwrap)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: useless conversion to the same type: `std::slice::Iter<'_, u64>`
[INFO] [stdout]   --> src/bin/17.rs:89:9
[INFO] [stdout]    |
[INFO] [stdout] 89 | /         out.iter()
[INFO] [stdout] 90 | |             .into_iter()
[INFO] [stdout]    | |________________________^ help: consider removing `.into_iter()`: `out.iter()`
[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] 
[INFO] [stdout] 
[INFO] [stdout] warning: name `OUTERWALL` contains a capitalized acronym
[INFO] [stdout]   --> src/bin/20.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     OUTERWALL(),
[INFO] [stdout]    |     ^^^^^^^^^ help: consider making the acronym lowercase, except the initial letter: `Outerwall`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#upper_case_acronyms
[INFO] [stdout]    = note: `#[warn(clippy::upper_case_acronyms)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: useless conversion to the same type: `std::ops::Range<u64>`
[INFO] [stdout]    --> src/bin/17.rs:102:33
[INFO] [stdout]     |
[INFO] [stdout] 102 |       let result: Vec<Vec<u64>> = (165323019388784..165363019388784)
[INFO] [stdout]     |  _________________________________^
[INFO] [stdout] 103 | |         .into_iter()
[INFO] [stdout]     | |____________________^ help: consider removing `.into_iter()`: `(165323019388784..165363019388784)`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_conversion
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: name `INNER` contains a capitalized acronym
[INFO] [stdout]   --> src/bin/20.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     INNER(),
[INFO] [stdout]    |     ^^^^^ help: consider making the acronym lowercase, except the initial letter: `Inner`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#upper_case_acronyms
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: name `EMPTY` contains a capitalized acronym
[INFO] [stdout]   --> src/bin/20.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     EMPTY(),
[INFO] [stdout]    |     ^^^^^ help: consider making the acronym lowercase, except the initial letter: `Empty`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#upper_case_acronyms
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: useless conversion to the same type: `std::str::Split<'_, &str>`
[INFO] [stdout]    --> src/bin/17.rs:135:28
[INFO] [stdout]     |
[INFO] [stdout] 135 |     let split: Vec<&str> = input.split("\n\n").into_iter().collect();
[INFO] [stdout]     |                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider removing `.into_iter()`: `input.split("\n\n")`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_conversion
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: useless conversion to the same type: `std::str::Split<'_, &str>`
[INFO] [stdout]    --> src/bin/17.rs:141:34
[INFO] [stdout]     |
[INFO] [stdout] 141 |       let program: Vec<Vec<u64>> = split[1][9..]
[INFO] [stdout]     |  __________________________________^
[INFO] [stdout] 142 | |         .split(",")
[INFO] [stdout] 143 | |         .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] 141 ~     let program: Vec<Vec<u64>> = split[1][9..]
[INFO] [stdout] 142 +         .split(",")
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: length comparison to zero
[INFO] [stdout]   --> src/bin/10.rs:46:11
[INFO] [stdout]    |
[INFO] [stdout] 46 |     while to_visit.len() > 0 {
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^^^^ help: using `!is_empty` is clearer and more explicit: `!to_visit.is_empty()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stdout]    = note: `#[warn(clippy::len_zero)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this `if` statement can be collapsed
[INFO] [stdout]   --> src/bin/10.rs:54:17
[INFO] [stdout]    |
[INFO] [stdout] 54 | /                 if node_val + 1 == value {
[INFO] [stdout] 55 | |                     if !node.visited.contains(&(x, y)) {
[INFO] [stdout] 56 | |                         let mut node_visited: HashSet<(i32, i32)> = node.visited.clone();
[INFO] [stdout] 57 | |                         node_visited.insert((node.x, node.y));
[INFO] [stdout] ...  |
[INFO] [stdout] 71 | |                 }
[INFO] [stdout]    | |_________________^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#collapsible_if
[INFO] [stdout]    = note: `#[warn(clippy::collapsible_if)]` on by default
[INFO] [stdout] help: collapse nested if block
[INFO] [stdout]    |
[INFO] [stdout] 54 ~                 if node_val + 1 == value
[INFO] [stdout] 55 ~                     && !node.visited.contains(&(x, y)) {
[INFO] [stdout] 56 |                         let mut node_visited: HashSet<(i32, i32)> = node.visited.clone();
[INFO] [stdout] ...
[INFO] [stdout] 69 |                         }
[INFO] [stdout] 70 ~                     }
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: length comparison to zero
[INFO] [stdout]   --> src/bin/10.rs:86:11
[INFO] [stdout]    |
[INFO] [stdout] 86 |     while to_visit.len() > 0 {
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^^^^ help: using `!is_empty` is clearer and more explicit: `!to_visit.is_empty()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this `if` statement can be collapsed
[INFO] [stdout]    --> src/bin/10.rs:94:17
[INFO] [stdout]     |
[INFO] [stdout]  94 | /                 if node_val + 1 == value {
[INFO] [stdout]  95 | |                     if !node.visited.contains(&(x, y)) {
[INFO] [stdout]  96 | |                         let mut node_visited: HashSet<(i32, i32)> = node.visited.clone();
[INFO] [stdout]  97 | |                         node_visited.insert((node.x, node.y));
[INFO] [stdout] ...   |
[INFO] [stdout] 108 | |                 }
[INFO] [stdout]     | |_________________^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#collapsible_if
[INFO] [stdout] help: collapse nested if block
[INFO] [stdout]     |
[INFO] [stdout]  94 ~                 if node_val + 1 == value
[INFO] [stdout]  95 ~                     && !node.visited.contains(&(x, y)) {
[INFO] [stdout]  96 |                         let mut node_visited: HashSet<(i32, i32)> = node.visited.clone();
[INFO] [stdout] ...
[INFO] [stdout] 106 |                         }
[INFO] [stdout] 107 ~                     }
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the variable `y` is used as a loop counter
[INFO] [stdout]    --> src/bin/10.rs:119:5
[INFO] [stdout]     |
[INFO] [stdout] 119 |     for line in input.lines() {
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using: `for (y, line) in input.lines().enumerate()`
[INFO] [stdout]     |
[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 `x` is used as a loop counter
[INFO] [stdout]    --> src/bin/10.rs:122:9
[INFO] [stdout]     |
[INFO] [stdout] 122 |         for number in line.chars() {
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using: `for (x, number) in line.chars().enumerate()`
[INFO] [stdout]     |
[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: unneeded `return` statement
[INFO] [stdout]    --> src/bin/20.rs:143:5
[INFO] [stdout]     |
[INFO] [stdout] 143 |     return (0, Vec::new());
[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] 143 -     return (0, Vec::new());
[INFO] [stdout] 143 +     (0, Vec::new())
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `borrow::BorrowMut`, `iter`, and `rc::Rc`
[INFO] [stdout]  --> src/bin/15.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{borrow::BorrowMut, collections::HashMap, iter, rc::Rc};
[INFO] [stdout]   |           ^^^^^^^^^^^^^^^^^                        ^^^^  ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this `if` statement can be collapsed
[INFO] [stdout]    --> src/bin/20.rs:117:13
[INFO] [stdout]     |
[INFO] [stdout] 117 | /             if grid.contains_key(&(node.loc.0 + dir.0, node.loc.1 + dir.1)) {
[INFO] [stdout] 118 | |                 if grid
[INFO] [stdout] 119 | |                     .get(&(node.loc.0 + dir.0, node.loc.1 + dir.1))
[INFO] [stdout] 120 | |                     .unwrap()
[INFO] [stdout] ...   |
[INFO] [stdout] 140 | |             }
[INFO] [stdout]     | |_____________^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#collapsible_if
[INFO] [stdout]     = note: `#[warn(clippy::collapsible_if)]` on by default
[INFO] [stdout] help: collapse nested if block
[INFO] [stdout]     |
[INFO] [stdout] 117 ~             if grid.contains_key(&(node.loc.0 + dir.0, node.loc.1 + dir.1))
[INFO] [stdout] 118 ~                 && grid
[INFO] [stdout] 119 |                     .get(&(node.loc.0 + dir.0, node.loc.1 + dir.1))
[INFO] [stdout] ...
[INFO] [stdout] 138 |                     }
[INFO] [stdout] 139 ~                 }
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: very complex type used. Consider factoring parts into `type` definitions
[INFO] [stdout]    --> src/bin/20.rs:146:26
[INFO] [stdout]     |
[INFO] [stdout] 146 | fn parse(input: &str) -> (HashMap<(i32, i32), Space>, (i32, i32), (i32, i32)) {
[INFO] [stdout]     |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#type_complexity
[INFO] [stdout]     = note: `#[warn(clippy::type_complexity)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the variable `y` is used as a loop counter
[INFO] [stdout]    --> src/bin/20.rs:151:5
[INFO] [stdout]     |
[INFO] [stdout] 151 |     for rows in input.lines() {
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using: `for (y, rows) in (0_i32..).zip(input.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 `x` is used as a loop counter
[INFO] [stdout]    --> src/bin/20.rs:153:9
[INFO] [stdout]     |
[INFO] [stdout] 153 |         for c in rows.chars() {
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^ help: consider using: `for (x, c) in (0_i32..).zip(rows.chars())`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `x` 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: statement with no effect
[INFO] [stdout]    --> src/bin/20.rs:162:25
[INFO] [stdout]     |
[INFO] [stdout] 162 |                         SpaceType::OUTERWALL();
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#no_effect
[INFO] [stdout]     = note: `#[warn(clippy::no_effect)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `max_x`
[INFO] [stdout]    --> src/bin/12.rs:118:9
[INFO] [stdout]     |
[INFO] [stdout] 118 |     let max_x= region.points.iter().map(|f|f.0).max().unwrap();
[INFO] [stdout]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_max_x`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `max_y`
[INFO] [stdout]    --> src/bin/12.rs:119:9
[INFO] [stdout]     |
[INFO] [stdout] 119 |     let max_y= region.points.iter().map(|f: &(i32, i32)|f.1).max().unwrap();
[INFO] [stdout]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_max_y`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `min_x`
[INFO] [stdout]    --> src/bin/12.rs:120:9
[INFO] [stdout]     |
[INFO] [stdout] 120 |     let min_x= region.points.iter().map(|f: &(i32, i32)|f.0).min().unwrap();
[INFO] [stdout]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_min_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `min_y`
[INFO] [stdout]    --> src/bin/12.rs:121:9
[INFO] [stdout]     |
[INFO] [stdout] 121 |     let min_y= region.points.iter().map(|f: &(i32, i32)|f.1).min().unwrap();
[INFO] [stdout]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_min_y`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Point` is never constructed
[INFO] [stdout]  --> src/bin/12.rs:6:8
[INFO] [stdout]   |
[INFO] [stdout] 6 | struct Point {
[INFO] [stdout]   |        ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Region` is never constructed
[INFO] [stdout]   --> src/bin/12.rs:13:8
[INFO] [stdout]    |
[INFO] [stdout] 13 | struct Region {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `search_region` is never used
[INFO] [stdout]    --> src/bin/12.rs:112:4
[INFO] [stdout]     |
[INFO] [stdout] 112 | fn search_region(id: i32, region_cluster: HashMap<i32,Region>) -> i32 {
[INFO] [stdout]     |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_region_id` is never used
[INFO] [stdout]    --> src/bin/12.rs:141:4
[INFO] [stdout]     |
[INFO] [stdout] 141 | fn get_region_id(point: (i32,i32), map: HashMap<i32,Region>) -> i32 {
[INFO] [stdout]     |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: length comparison to zero
[INFO] [stdout]   --> src/bin/12.rs:31:11
[INFO] [stdout]    |
[INFO] [stdout] 31 |     while grid.len() > 0 {
[INFO] [stdout]    |           ^^^^^^^^^^^^^^ help: using `!is_empty` is clearer and more explicit: `!grid.is_empty()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stdout]    = note: `#[warn(clippy::len_zero)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: length comparison to zero
[INFO] [stdout]   --> src/bin/12.rs:34:15
[INFO] [stdout]    |
[INFO] [stdout] 34 |         while to_visit.len() > 0 {
[INFO] [stdout]    |               ^^^^^^^^^^^^^^^^^^ help: using `!is_empty` is clearer and more explicit: `!to_visit.is_empty()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this `if` statement can be collapsed
[INFO] [stdout]   --> src/bin/12.rs:41:17
[INFO] [stdout]    |
[INFO] [stdout] 41 | /                 if grid.contains_key(&(x, y)) {
[INFO] [stdout] 42 | |                     if grid.get(&(x, y)).unwrap() == grid.get(&(node.0, node.1)).unwrap() {
[INFO] [stdout] 43 | |                         to_visit.insert((x, y));
[INFO] [stdout] 44 | |                     }
[INFO] [stdout] 45 | |                 }
[INFO] [stdout]    | |_________________^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#collapsible_if
[INFO] [stdout]    = note: `#[warn(clippy::collapsible_if)]` on by default
[INFO] [stdout] help: collapse nested if block
[INFO] [stdout]    |
[INFO] [stdout] 41 ~                 if grid.contains_key(&(x, y))
[INFO] [stdout] 42 ~                     && grid.get(&(x, y)).unwrap() == grid.get(&(node.0, node.1)).unwrap() {
[INFO] [stdout] 43 |                         to_visit.insert((x, y));
[INFO] [stdout] 44 ~                     }
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this `if` statement can be collapsed
[INFO] [stdout]   --> src/bin/12.rs:46:17
[INFO] [stdout]    |
[INFO] [stdout] 46 | /                 if orignal_grid.contains_key(&(x, y)) {
[INFO] [stdout] 47 | |                     if orignal_grid.get(&(x, y)).unwrap() == grid.get(&(node.0, node.1)).unwrap() {
[INFO] [stdout] 48 | |                         neighbors -= 1;
[INFO] [stdout] 49 | |                     }
[INFO] [stdout] 50 | |                 }
[INFO] [stdout]    | |_________________^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#collapsible_if
[INFO] [stdout] help: collapse nested if block
[INFO] [stdout]    |
[INFO] [stdout] 46 ~                 if orignal_grid.contains_key(&(x, y))
[INFO] [stdout] 47 ~                     && orignal_grid.get(&(x, y)).unwrap() == grid.get(&(node.0, node.1)).unwrap() {
[INFO] [stdout] 48 |                         neighbors -= 1;
[INFO] [stdout] 49 ~                     }
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: name `OUTERWALL` contains a capitalized acronym
[INFO] [stdout]   --> src/bin/20.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     OUTERWALL(),
[INFO] [stdout]    |     ^^^^^^^^^ help: consider making the acronym lowercase, except the initial letter: `Outerwall`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#upper_case_acronyms
[INFO] [stdout]    = note: `#[warn(clippy::upper_case_acronyms)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: name `INNER` contains a capitalized acronym
[INFO] [stdout]   --> src/bin/20.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     INNER(),
[INFO] [stdout]    |     ^^^^^ help: consider making the acronym lowercase, except the initial letter: `Inner`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#upper_case_acronyms
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: name `EMPTY` contains a capitalized acronym
[INFO] [stdout]   --> src/bin/20.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     EMPTY(),
[INFO] [stdout]    |     ^^^^^ help: consider making the acronym lowercase, except the initial letter: `Empty`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#upper_case_acronyms
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]    --> src/bin/20.rs:143:5
[INFO] [stdout]     |
[INFO] [stdout] 143 |     return (0, Vec::new());
[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] 143 -     return (0, Vec::new());
[INFO] [stdout] 143 +     (0, Vec::new())
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this `if` statement can be collapsed
[INFO] [stdout]    --> src/bin/20.rs:117:13
[INFO] [stdout]     |
[INFO] [stdout] 117 | /             if grid.contains_key(&(node.loc.0 + dir.0, node.loc.1 + dir.1)) {
[INFO] [stdout] 118 | |                 if grid
[INFO] [stdout] 119 | |                     .get(&(node.loc.0 + dir.0, node.loc.1 + dir.1))
[INFO] [stdout] 120 | |                     .unwrap()
[INFO] [stdout] ...   |
[INFO] [stdout] 140 | |             }
[INFO] [stdout]     | |_____________^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#collapsible_if
[INFO] [stdout]     = note: `#[warn(clippy::collapsible_if)]` on by default
[INFO] [stdout] help: collapse nested if block
[INFO] [stdout]     |
[INFO] [stdout] 117 ~             if grid.contains_key(&(node.loc.0 + dir.0, node.loc.1 + dir.1))
[INFO] [stdout] 118 ~                 && grid
[INFO] [stdout] 119 |                     .get(&(node.loc.0 + dir.0, node.loc.1 + dir.1))
[INFO] [stdout] ...
[INFO] [stdout] 138 |                     }
[INFO] [stdout] 139 ~                 }
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: very complex type used. Consider factoring parts into `type` definitions
[INFO] [stdout]    --> src/bin/20.rs:146:26
[INFO] [stdout]     |
[INFO] [stdout] 146 | fn parse(input: &str) -> (HashMap<(i32, i32), Space>, (i32, i32), (i32, i32)) {
[INFO] [stdout]     |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#type_complexity
[INFO] [stdout]     = note: `#[warn(clippy::type_complexity)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: redundant field names in struct initialization
[INFO] [stdout]   --> src/bin/16.rs:97:29
[INFO] [stdout]    |
[INFO] [stdout] 97 | ...                   route: route,
[INFO] [stdout]    |                       ^^^^^^^^^^^^ help: replace it with: `route`
[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/bin/16.rs:166:29
[INFO] [stdout]     |
[INFO] [stdout] 166 | ...                   route: route,
[INFO] [stdout]     |                       ^^^^^^^^^^^^ help: replace it with: `route`
[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: the variable `y` is used as a loop counter
[INFO] [stdout]    --> src/bin/20.rs:151:5
[INFO] [stdout]     |
[INFO] [stdout] 151 |     for rows in input.lines() {
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using: `for (y, rows) in (0_i32..).zip(input.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 `x` is used as a loop counter
[INFO] [stdout]    --> src/bin/20.rs:153:9
[INFO] [stdout]     |
[INFO] [stdout] 153 |         for c in rows.chars() {
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^ help: consider using: `for (x, c) in (0_i32..).zip(rows.chars())`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `x` 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: statement with no effect
[INFO] [stdout]    --> src/bin/20.rs:162:25
[INFO] [stdout]     |
[INFO] [stdout] 162 |                         SpaceType::OUTERWALL();
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#no_effect
[INFO] [stdout]     = note: `#[warn(clippy::no_effect)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: length comparison to zero
[INFO] [stdout]   --> src/bin/12.rs:74:11
[INFO] [stdout]    |
[INFO] [stdout] 74 |     while grid.len() > 0 {
[INFO] [stdout]    |           ^^^^^^^^^^^^^^ help: using `!is_empty` is clearer and more explicit: `!grid.is_empty()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: length comparison to zero
[INFO] [stdout]   --> src/bin/12.rs:78:15
[INFO] [stdout]    |
[INFO] [stdout] 78 |         while to_visit.len() > 0 {
[INFO] [stdout]    |               ^^^^^^^^^^^^^^^^^^ help: using `!is_empty` is clearer and more explicit: `!to_visit.is_empty()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this expression creates a reference which is immediately dereferenced by the compiler
[INFO] [stdout]   --> src/bin/02.rs:18:20
[INFO] [stdout]    |
[INFO] [stdout] 18 |         if is_safe(&line) {
[INFO] [stdout]    |                    ^^^^^ help: change this to: `line`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_borrow
[INFO] [stdout]    = note: `#[warn(clippy::needless_borrow)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this boolean expression can be simplified
[INFO] [stdout]   --> src/bin/02.rs:48:17
[INFO] [stdout]    |
[INFO] [stdout] 48 |         found = found && true;
[INFO] [stdout]    |                 ^^^^^^^^^^^^^ help: try: `found`
[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: the variable `d` is used as a loop counter
[INFO] [stdout]   --> src/bin/12.rs:83:13
[INFO] [stdout]    |
[INFO] [stdout] 83 |             for (dx, dy) in DIR.iter() {
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using: `for (d, (dx, dy)) in DIR.iter().enumerate()`
[INFO] [stdout]    |
[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: this `if` statement can be collapsed
[INFO] [stdout]   --> src/bin/12.rs:86:17
[INFO] [stdout]    |
[INFO] [stdout] 86 | /                 if grid.contains_key(&(x, y)) {
[INFO] [stdout] 87 | |                     if grid.get(&(x, y)).unwrap() == grid.get(&(node.0, node.1)).unwrap() {
[INFO] [stdout] 88 | |                         to_visit.insert((x, y));
[INFO] [stdout] 89 | |                     }
[INFO] [stdout] 90 | |                 }
[INFO] [stdout]    | |_________________^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#collapsible_if
[INFO] [stdout] help: collapse nested if block
[INFO] [stdout]    |
[INFO] [stdout] 86 ~                 if grid.contains_key(&(x, y))
[INFO] [stdout] 87 ~                     && grid.get(&(x, y)).unwrap() == grid.get(&(node.0, node.1)).unwrap() {
[INFO] [stdout] 88 |                         to_visit.insert((x, y));
[INFO] [stdout] 89 ~                     }
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this `if` statement can be collapsed
[INFO] [stdout]   --> src/bin/12.rs:91:17
[INFO] [stdout]    |
[INFO] [stdout] 91 | /                 if orignal_grid.contains_key(&(x, y)) {
[INFO] [stdout] 92 | |                     if orignal_grid.get(&(x, y)).unwrap() == grid.get(&(node.0, node.1)).unwrap() {
[INFO] [stdout] 93 | |                         neighbors -= 1;
[INFO] [stdout] 94 | |                         crn[d]+=1;
[INFO] [stdout] 95 | |                     }
[INFO] [stdout] 96 | |                 }
[INFO] [stdout]    | |_________________^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#collapsible_if
[INFO] [stdout] help: collapse nested if block
[INFO] [stdout]    |
[INFO] [stdout] 91 ~                 if orignal_grid.contains_key(&(x, y))
[INFO] [stdout] 92 ~                     && orignal_grid.get(&(x, y)).unwrap() == grid.get(&(node.0, node.1)).unwrap() {
[INFO] [stdout] 93 |                         neighbors -= 1;
[INFO] [stdout] 94 |                         crn[d]+=1;
[INFO] [stdout] 95 ~                     }
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]   --> src/bin/02.rs:50:5
[INFO] [stdout]    |
[INFO] [stdout] 50 |     return found;
[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] 50 -     return found;
[INFO] [stdout] 50 +     found
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: writing `&Vec` instead of `&[_]` involves a new object where a slice will do
[INFO] [stdout]   --> src/bin/02.rs:37:18
[INFO] [stdout]    |
[INFO] [stdout] 37 | fn is_safe(line: &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] 37 - fn is_safe(line: &Vec<i32>) -> bool {
[INFO] [stdout] 37 + fn is_safe(line: &[i32]) -> bool {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: redundant field names in struct initialization
[INFO] [stdout]   --> src/bin/16.rs:97:29
[INFO] [stdout]    |
[INFO] [stdout] 97 | ...                   route: route,
[INFO] [stdout]    |                       ^^^^^^^^^^^^ help: replace it with: `route`
[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/bin/16.rs:166:29
[INFO] [stdout]     |
[INFO] [stdout] 166 | ...                   route: route,
[INFO] [stdout]     |                       ^^^^^^^^^^^^ help: replace it with: `route`
[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: unneeded `return` statement
[INFO] [stdout]    --> src/bin/12.rs:147:5
[INFO] [stdout]     |
[INFO] [stdout] 147 |     return -1;
[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] 147 -     return -1;
[INFO] [stdout] 147 +     -1
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: name `OBSTACLE` contains a capitalized acronym
[INFO] [stdout]  --> src/bin/06.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     OBSTACLE,
[INFO] [stdout]   |     ^^^^^^^^ help: consider making the acronym lowercase, except the initial letter: `Obstacle`
[INFO] [stdout]   |
[INFO] [stdout]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#upper_case_acronyms
[INFO] [stdout]   = note: `#[warn(clippy::upper_case_acronyms)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: redundant field names in struct initialization
[INFO] [stdout]    --> src/bin/18.rs:107:21
[INFO] [stdout]     |
[INFO] [stdout] 107 |                     route: route,
[INFO] [stdout]     |                     ^^^^^^^^^^^^ help: replace it with: `route`
[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/bin/10.rs:65:33
[INFO] [stdout]    |
[INFO] [stdout] 65 | ...                   x: x,
[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/bin/10.rs:66:33
[INFO] [stdout]    |
[INFO] [stdout] 66 | ...                   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/bin/10.rs:102:33
[INFO] [stdout]     |
[INFO] [stdout] 102 | ...                   x: x,
[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] 
[INFO] [stdout] 
[INFO] [stdout] warning: redundant field names in struct initialization
[INFO] [stdout]    --> src/bin/10.rs:103:33
[INFO] [stdout]     |
[INFO] [stdout] 103 | ...                   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: match expression looks like `matches!` macro
[INFO] [stdout]   --> src/bin/06.rs:44:9
[INFO] [stdout]    |
[INFO] [stdout] 44 | /         match self.map.get(&point) {
[INFO] [stdout] 45 | |             Some(Object::OBSTACLE) => true,
[INFO] [stdout] 46 | |             _ => false,
[INFO] [stdout] 47 | |         }
[INFO] [stdout]    | |_________^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_like_matches_macro
[INFO] [stdout]    = note: `#[warn(clippy::match_like_matches_macro)]` on by default
[INFO] [stdout] help: use `matches!` directly
[INFO] [stdout]    |
[INFO] [stdout] 44 -         match self.map.get(&point) {
[INFO] [stdout] 45 -             Some(Object::OBSTACLE) => true,
[INFO] [stdout] 46 -             _ => false,
[INFO] [stdout] 47 -         }
[INFO] [stdout] 44 +         matches!(self.map.get(&point), Some(Object::OBSTACLE))
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this `if` statement can be collapsed
[INFO] [stdout]    --> src/bin/04.rs:112:13
[INFO] [stdout]     |
[INFO] [stdout] 112 | /             if available.len() == 4 {
[INFO] [stdout] 113 | |                 if (available[0].c == Some('S') && available[3].c == Some('M')
[INFO] [stdout] 114 | |                     || available[0].c == Some('M') && available[3].c == Some('S'))
[INFO] [stdout] 115 | |                     && (available[1].c == Some('S') && available[2].c == Some('M')
[INFO] [stdout] ...   |
[INFO] [stdout] 120 | |             }
[INFO] [stdout]     | |_____________^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#collapsible_if
[INFO] [stdout]     = note: `#[warn(clippy::collapsible_if)]` on by default
[INFO] [stdout] help: collapse nested if block
[INFO] [stdout]     |
[INFO] [stdout] 112 ~             if available.len() == 4
[INFO] [stdout] 113 ~                 && (available[0].c == Some('S') && available[3].c == Some('M')
[INFO] [stdout] 114 |                     || available[0].c == Some('M') && available[3].c == Some('S'))
[INFO] [stdout] ...
[INFO] [stdout] 118 |                     result += 1;
[INFO] [stdout] 119 ~                 }
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `dir`
[INFO] [stdout]   --> src/bin/15.rs:84:16
[INFO] [stdout]    |
[INFO] [stdout] 84 |     let (grid, dir,w,h) = parse_pt2(input);
[INFO] [stdout]    |                ^^^ help: if this is intentional, prefix it with an underscore: `_dir`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: writing `&Vec` instead of `&[_]` involves a new object where a slice will do
[INFO] [stdout]    --> src/bin/04.rs:143:22
[INFO] [stdout]     |
[INFO] [stdout] 143 | fn get_point(points: &Vec<Point>, x: usize, y: usize, w: usize) -> &Point {
[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] 143 - fn get_point(points: &Vec<Point>, x: usize, y: usize, w: usize) -> &Point {
[INFO] [stdout] 143 + fn get_point(points: &[Point], x: usize, y: usize, w: usize) -> &Point {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this expression creates a reference which is immediately dereferenced by the compiler
[INFO] [stdout]    --> src/bin/04.rs:160:42
[INFO] [stdout]     |
[INFO] [stdout] 160 |                 let neighbor = get_point(&points, x as usize, y as usize, width);
[INFO] [stdout]     |                                          ^^^^^^^ help: change this to: `points`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_borrow
[INFO] [stdout]     = note: `#[warn(clippy::needless_borrow)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]    --> src/bin/04.rs:194:5
[INFO] [stdout]     |
[INFO] [stdout] 194 |     return false;
[INFO] [stdout]     |     ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stdout]     = note: `#[warn(clippy::needless_return)]` on by default
[INFO] [stdout] help: remove `return`
[INFO] [stdout]     |
[INFO] [stdout] 194 -     return false;
[INFO] [stdout] 194 +     false
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Movable` is never used
[INFO] [stdout]   --> src/bin/15.rs:24:7
[INFO] [stdout]    |
[INFO] [stdout] 24 | trait Movable {
[INFO] [stdout]    |       ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: manual implementation of an assign operation
[INFO] [stdout]   --> src/bin/15.rs:31:9
[INFO] [stdout]    |
[INFO] [stdout] 31 |         self.pos[0][0] = self.pos[0][0] + DIR[dir as usize].0;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `self.pos[0][0] += DIR[dir as usize].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]    = note: `#[warn(clippy::assign_op_pattern)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: manual implementation of an assign operation
[INFO] [stdout]   --> src/bin/15.rs:32:9
[INFO] [stdout]    |
[INFO] [stdout] 32 |         self.pos[0][1] = self.pos[0][1] + DIR[dir as usize].1;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `self.pos[0][1] += DIR[dir as usize].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/bin/15.rs:33:9
[INFO] [stdout]    |
[INFO] [stdout] 33 |         self.pos[1][0] = self.pos[1][0] + DIR[dir as usize].0;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `self.pos[1][0] += DIR[dir as usize].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/bin/15.rs:34:9
[INFO] [stdout]    |
[INFO] [stdout] 34 |         self.pos[1][1] = self.pos[1][1] + DIR[dir as usize].1;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `self.pos[1][1] += DIR[dir as usize].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/bin/15.rs:43:9
[INFO] [stdout]    |
[INFO] [stdout] 43 |         self.pos[0] = self.pos[0] + DIR[dir as usize].0;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `self.pos[0] += DIR[dir as usize].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/bin/15.rs:44:9
[INFO] [stdout]    |
[INFO] [stdout] 44 |         self.pos[1] = self.pos[1] + DIR[dir as usize].1;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `self.pos[1] += DIR[dir as usize].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: length comparison to zero
[INFO] [stdout]   --> src/bin/10.rs:46:11
[INFO] [stdout]    |
[INFO] [stdout] 46 |     while to_visit.len() > 0 {
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^^^^ help: using `!is_empty` is clearer and more explicit: `!to_visit.is_empty()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stdout]    = note: `#[warn(clippy::len_zero)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this `if` statement can be collapsed
[INFO] [stdout]   --> src/bin/10.rs:54:17
[INFO] [stdout]    |
[INFO] [stdout] 54 | /                 if node_val + 1 == value {
[INFO] [stdout] 55 | |                     if !node.visited.contains(&(x, y)) {
[INFO] [stdout] 56 | |                         let mut node_visited: HashSet<(i32, i32)> = node.visited.clone();
[INFO] [stdout] 57 | |                         node_visited.insert((node.x, node.y));
[INFO] [stdout] ...  |
[INFO] [stdout] 71 | |                 }
[INFO] [stdout]    | |_________________^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#collapsible_if
[INFO] [stdout]    = note: `#[warn(clippy::collapsible_if)]` on by default
[INFO] [stdout] help: collapse nested if block
[INFO] [stdout]    |
[INFO] [stdout] 54 ~                 if node_val + 1 == value
[INFO] [stdout] 55 ~                     && !node.visited.contains(&(x, y)) {
[INFO] [stdout] 56 |                         let mut node_visited: HashSet<(i32, i32)> = node.visited.clone();
[INFO] [stdout] ...
[INFO] [stdout] 69 |                         }
[INFO] [stdout] 70 ~                     }
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: length comparison to zero
[INFO] [stdout]   --> src/bin/10.rs:86:11
[INFO] [stdout]    |
[INFO] [stdout] 86 |     while to_visit.len() > 0 {
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^^^^ help: using `!is_empty` is clearer and more explicit: `!to_visit.is_empty()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this `if` statement can be collapsed
[INFO] [stdout]    --> src/bin/10.rs:94:17
[INFO] [stdout]     |
[INFO] [stdout]  94 | /                 if node_val + 1 == value {
[INFO] [stdout]  95 | |                     if !node.visited.contains(&(x, y)) {
[INFO] [stdout]  96 | |                         let mut node_visited: HashSet<(i32, i32)> = node.visited.clone();
[INFO] [stdout]  97 | |                         node_visited.insert((node.x, node.y));
[INFO] [stdout] ...   |
[INFO] [stdout] 108 | |                 }
[INFO] [stdout]     | |_________________^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#collapsible_if
[INFO] [stdout] help: collapse nested if block
[INFO] [stdout]     |
[INFO] [stdout]  94 ~                 if node_val + 1 == value
[INFO] [stdout]  95 ~                     && !node.visited.contains(&(x, y)) {
[INFO] [stdout]  96 |                         let mut node_visited: HashSet<(i32, i32)> = node.visited.clone();
[INFO] [stdout] ...
[INFO] [stdout] 106 |                         }
[INFO] [stdout] 107 ~                     }
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `clone` on type `(i32, i32)` which implements the `Copy` trait
[INFO] [stdout]   --> src/bin/15.rs:93:23
[INFO] [stdout]    |
[INFO] [stdout] 93 |         .map(|(k, _)| k.clone())
[INFO] [stdout]    |                       ^^^^^^^^^ help: try dereferencing it: `*k`
[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 expression creates a reference which is immediately dereferenced by the compiler
[INFO] [stdout]    --> src/bin/04.rs:190:38
[INFO] [stdout]     |
[INFO] [stdout] 190 |             let neighbor = get_point(&points, x as usize, y as usize, width);
[INFO] [stdout]     |                                      ^^^^^^^ help: change this to: `points`
[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: the variable `y` is used as a loop counter
[INFO] [stdout]    --> src/bin/10.rs:119:5
[INFO] [stdout]     |
[INFO] [stdout] 119 |     for line in input.lines() {
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using: `for (y, line) in input.lines().enumerate()`
[INFO] [stdout]     |
[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 `x` is used as a loop counter
[INFO] [stdout]    --> src/bin/10.rs:122:9
[INFO] [stdout]     |
[INFO] [stdout] 122 |         for number in line.chars() {
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using: `for (x, number) in line.chars().enumerate()`
[INFO] [stdout]     |
[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: very complex type used. Consider factoring parts into `type` definitions
[INFO] [stdout]    --> src/bin/15.rs:124:26
[INFO] [stdout]     |
[INFO] [stdout] 124 | fn parse(input: &str) -> (HashMap<(i32, i32), char>, Vec<i32>, (i32, i32)) {
[INFO] [stdout]     |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#type_complexity
[INFO] [stdout]     = note: `#[warn(clippy::type_complexity)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]    --> src/bin/15.rs:140:13
[INFO] [stdout]     |
[INFO] [stdout] 140 | /             return match c {
[INFO] [stdout] 141 | |                 '^' => 0,
[INFO] [stdout] 142 | |                 '>' => 1,
[INFO] [stdout] 143 | |                 'v' => 2,
[INFO] [stdout] 144 | |                 '<' => 3,
[INFO] [stdout] 145 | |                 _ => 0,
[INFO] [stdout] 146 | |             };
[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] 140 ~             match c {
[INFO] [stdout] 141 +                 '^' => 0,
[INFO] [stdout] 142 +                 '>' => 1,
[INFO] [stdout] 143 +                 'v' => 2,
[INFO] [stdout] 144 +                 '<' => 3,
[INFO] [stdout] 145 +                 _ => 0,
[INFO] [stdout] 146 ~             }
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]    --> src/bin/15.rs:194:13
[INFO] [stdout]     |
[INFO] [stdout] 194 | /             return match c {
[INFO] [stdout] 195 | |                 '^' => 0,
[INFO] [stdout] 196 | |                 '>' => 1,
[INFO] [stdout] 197 | |                 'v' => 2,
[INFO] [stdout] 198 | |                 '<' => 3,
[INFO] [stdout] 199 | |                 _ => 0,
[INFO] [stdout] 200 | |             };
[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] 194 ~             match c {
[INFO] [stdout] 195 +                 '^' => 0,
[INFO] [stdout] 196 +                 '>' => 1,
[INFO] [stdout] 197 +                 'v' => 2,
[INFO] [stdout] 198 +                 '<' => 3,
[INFO] [stdout] 199 +                 _ => 0,
[INFO] [stdout] 200 ~             }
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: empty string literal in `println!`
[INFO] [stdout]    --> src/bin/15.rs:211:9
[INFO] [stdout]     |
[INFO] [stdout] 211 |         println!("");
[INFO] [stdout]     |         ^^^^^^^^^--^
[INFO] [stdout]     |                  |
[INFO] [stdout]     |                  help: remove the empty string
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#println_empty_string
[INFO] [stdout]     = note: `#[warn(clippy::println_empty_string)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: empty string literal in `println!`
[INFO] [stdout]    --> src/bin/15.rs:239:9
[INFO] [stdout]     |
[INFO] [stdout] 239 |         println!("");
[INFO] [stdout]     |         ^^^^^^^^^--^
[INFO] [stdout]     |                  |
[INFO] [stdout]     |                  help: remove the empty string
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#println_empty_string
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]    --> src/bin/15.rs:267:5
[INFO] [stdout]     |
[INFO] [stdout] 267 |     return Some(Obstacle::Empty(Empty {}));
[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] 267 -     return Some(Obstacle::Empty(Empty {}));
[INFO] [stdout] 267 +     Some(Obstacle::Empty(Empty {}))
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: useless conversion to the same type: `std::str::Split<'_, char>`
[INFO] [stdout]    --> src/bin/06.rs:130:22
[INFO] [stdout]     |
[INFO] [stdout] 130 |     for (y, line) in input.split('\n').into_iter().enumerate() {
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider removing `.into_iter()`: `input.split('\n')`
[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] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `input`
[INFO] [stdout]   --> src/bin/13.rs:22:17
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub fn part_two(input: &str) -> Option<u32> {
[INFO] [stdout]    |                 ^^^^^ help: if this is intentional, prefix it with an underscore: `_input`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: you seem to use `.enumerate()` and immediately discard the index
[INFO] [stdout]   --> src/bin/18.rs:84:41
[INFO] [stdout]    |
[INFO] [stdout] 84 |         for (_, &(dx, dy)) in DIR.iter().enumerate() {
[INFO] [stdout]    |                                         ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_enumerate_index
[INFO] [stdout]    = note: `#[warn(clippy::unused_enumerate_index)]` on by default
[INFO] [stdout] help: remove the `.enumerate()` call
[INFO] [stdout]    |
[INFO] [stdout] 84 -         for (_, &(dx, dy)) in DIR.iter().enumerate() {
[INFO] [stdout] 84 +         for &(dx, dy) in DIR.iter() {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: length comparison to zero
[INFO] [stdout]   --> src/bin/13.rs:18:62
[INFO] [stdout]    |
[INFO] [stdout] 18 |     let s: u64 =  g.iter().map(|f|calc(f.clone())).filter(|f|f.len() > 0).map(|f| 3* f[0]+ 1*f[1]).sum();
[INFO] [stdout]    |                                                              ^^^^^^^^^^^ help: using `!is_empty` is clearer and more explicit: `!f.is_empty()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stdout]    = note: `#[warn(clippy::len_zero)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this operation has no effect
[INFO] [stdout]   --> src/bin/13.rs:18:92
[INFO] [stdout]    |
[INFO] [stdout] 18 |     let s: u64 =  g.iter().map(|f|calc(f.clone())).filter(|f|f.len() > 0).map(|f| 3* f[0]+ 1*f[1]).sum();
[INFO] [stdout]    |                                                                                            ^^^^^^ help: consider reducing it to: `f[1]`
[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 (`u64` -> `u64`)
[INFO] [stdout]   --> src/bin/13.rs:19:10
[INFO] [stdout]    |
[INFO] [stdout] 19 |     Some(s as u64)
[INFO] [stdout]    |          ^^^^^^^^ help: try: `s`
[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: compiling a regex in a loop
[INFO] [stdout]   --> src/bin/13.rs:44:22
[INFO] [stdout]    |
[INFO] [stdout] 44 |             let re = Regex::new(r"[+-]?\d+").unwrap();
[INFO] [stdout]    |                      ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: move the regex construction outside this loop
[INFO] [stdout]   --> src/bin/13.rs:42:9
[INFO] [stdout]    |
[INFO] [stdout] 42 |         for line in game.lines() {
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#regex_creation_in_loops
[INFO] [stdout]    = note: `#[warn(clippy::regex_creation_in_loops)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: importing legacy numeric constants
[INFO] [stdout]  --> src/bin/16.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 |     i32, usize,
[INFO] [stdout]   |     ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = help: remove this import
[INFO] [stdout]   = note: then `i32::<CONST>` will resolve to the respective associated constant
[INFO] [stdout]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#legacy_numeric_constants
[INFO] [stdout]   = note: `#[warn(clippy::legacy_numeric_constants)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: importing legacy numeric constants
[INFO] [stdout]  --> src/bin/16.rs:4:10
[INFO] [stdout]   |
[INFO] [stdout] 4 |     i32, usize,
[INFO] [stdout]   |          ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = help: remove this import
[INFO] [stdout]   = note: then `usize::<CONST>` will resolve to the respective associated constant
[INFO] [stdout]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#legacy_numeric_constants
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: very complex type used. Consider factoring parts into `type` definitions
[INFO] [stdout]    --> src/bin/16.rs:177:30
[INFO] [stdout]     |
[INFO] [stdout] 177 | pub fn parse(input: &str) -> (HashMap<(i32, i32), char>, (i32, i32), (i32, i32)) {
[INFO] [stdout]     |                              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#type_complexity
[INFO] [stdout]     = note: `#[warn(clippy::type_complexity)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: importing legacy numeric constants
[INFO] [stdout]  --> src/bin/16.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 |     i32, usize,
[INFO] [stdout]   |     ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = help: remove this import
[INFO] [stdout]   = note: then `i32::<CONST>` will resolve to the respective associated constant
[INFO] [stdout]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#legacy_numeric_constants
[INFO] [stdout]   = note: `#[warn(clippy::legacy_numeric_constants)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: importing legacy numeric constants
[INFO] [stdout]  --> src/bin/16.rs:4:10
[INFO] [stdout]   |
[INFO] [stdout] 4 |     i32, usize,
[INFO] [stdout]   |          ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = help: remove this import
[INFO] [stdout]   = note: then `usize::<CONST>` will resolve to the respective associated constant
[INFO] [stdout]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#legacy_numeric_constants
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: writing `&Vec` instead of `&[_]` involves a new object where a slice will do
[INFO] [stdout]   --> src/bin/05.rs:45:51
[INFO] [stdout]    |
[INFO] [stdout] 45 | fn is_ordered(map: &HashMap<i32, Vec<i32>>, item: &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] 45 - fn is_ordered(map: &HashMap<i32, Vec<i32>>, item: &Vec<i32>) -> bool {
[INFO] [stdout] 45 + fn is_ordered(map: &HashMap<i32, Vec<i32>>, item: &[i32]) -> bool {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: length comparison to zero
[INFO] [stdout]   --> src/bin/05.rs:49:16
[INFO] [stdout]    |
[INFO] [stdout] 49 |             if dep.len() > 0 {
[INFO] [stdout]    |                ^^^^^^^^^^^^^ help: using `!is_empty` is clearer and more explicit: `!dep.is_empty()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stdout]    = note: `#[warn(clippy::len_zero)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the loop variable `j` is only used to index `item`
[INFO] [stdout]   --> src/bin/05.rs:50:26
[INFO] [stdout]    |
[INFO] [stdout] 50 |                 for j in i + 1..item.len() {
[INFO] [stdout]    |                          ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_range_loop
[INFO] [stdout]    = note: `#[warn(clippy::needless_range_loop)]` on by default
[INFO] [stdout] help: consider using an iterator
[INFO] [stdout]    |
[INFO] [stdout] 50 -                 for j in i + 1..item.len() {
[INFO] [stdout] 50 +                 for <item> in item.iter().skip(i + 1) {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of `or_insert_with` to construct default value
[INFO] [stdout]   --> src/bin/05.rs:72:24
[INFO] [stdout]    |
[INFO] [stdout] 72 |         map.entry(key).or_insert_with(Vec::new).push(value);
[INFO] [stdout]    |                        ^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `or_default()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unwrap_or_default
[INFO] [stdout]    = note: `#[warn(clippy::unwrap_or_default)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this loop could be written as a `for` loop
[INFO] [stdout]   --> src/bin/05.rs:78:9
[INFO] [stdout]    |
[INFO] [stdout] 78 |         while let Some(part) = parts.next() {
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `for part in parts`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#while_let_on_iterator
[INFO] [stdout]    = note: `#[warn(clippy::while_let_on_iterator)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `char::MAX` and `result`
[INFO] [stdout]  --> src/bin/17.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{char::MAX, result};
[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 imports: `IntoParallelIterator` and `StepBy`
[INFO] [stdout]  --> src/bin/17.rs:3:44
[INFO] [stdout]   |
[INFO] [stdout] 3 | use rayon::iter::{IndexedParallelIterator, IntoParallelIterator, ParallelIterator, StepBy};
[INFO] [stdout]   |                                            ^^^^^^^^^^^^^^^^^^^^                    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `borrow::BorrowMut`, `iter`, and `rc::Rc`
[INFO] [stdout]  --> src/bin/15.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{borrow::BorrowMut, collections::HashMap, iter, rc::Rc};
[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 import: `IndexedParallelIterator`
[INFO] [stdout]  --> src/bin/17.rs:3:19
[INFO] [stdout]   |
[INFO] [stdout] 3 | use rayon::iter::{IndexedParallelIterator, IntoParallelIterator, ParallelIterator, StepBy};
[INFO] [stdout]   |                   ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `input`
[INFO] [stdout]   --> src/bin/13.rs:22:17
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub fn part_two(input: &str) -> Option<u32> {
[INFO] [stdout]    |                 ^^^^^ help: if this is intentional, prefix it with an underscore: `_input`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ParallelIterator`
[INFO] [stdout]  --> src/bin/17.rs:3:66
[INFO] [stdout]   |
[INFO] [stdout] 3 | use rayon::iter::{IndexedParallelIterator, IntoParallelIterator, ParallelIterator, StepBy};
[INFO] [stdout]   |                                                                  ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `result`
[INFO] [stdout]    --> src/bin/17.rs:102:9
[INFO] [stdout]     |
[INFO] [stdout] 102 |     let result: Vec<Vec<u64>> = (165323019388784..165363019388784)
[INFO] [stdout]     |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_result`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: very complex type used. Consider factoring parts into `type` definitions
[INFO] [stdout]  --> src/bin/17.rs:7:16
[INFO] [stdout]   |
[INFO] [stdout] 7 | const OPCODES: [fn(Vec<u64>, u64) -> (Vec<u64>, Option<u64>); 8] =
[INFO] [stdout]   |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#type_complexity
[INFO] [stdout]   = note: `#[warn(clippy::type_complexity)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: casting integer literal to `f64` is unnecessary
[INFO] [stdout]   --> src/bin/17.rs:39:24
[INFO] [stdout]    |
[INFO] [stdout] 39 |     reg[1] = reg[0] / ((2 as f64).powf(v as f64) as u64);
[INFO] [stdout]    |                        ^^^^^^^^^^ help: try: `2_f64`
[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 `f64` is unnecessary
[INFO] [stdout]   --> src/bin/17.rs:46:24
[INFO] [stdout]    |
[INFO] [stdout] 46 |     reg[2] = reg[0] / ((2 as f64).powf(v as f64) as u64);
[INFO] [stdout]    |                        ^^^^^^^^^^ help: try: `2_f64`
[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: manual implementation of an assign operation
[INFO] [stdout]   --> src/bin/17.rs:53:5
[INFO] [stdout]    |
[INFO] [stdout] 53 |     reg[0] = reg[0] / ((2 as f64).powf(v as f64) as u64);
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `reg[0] /= ((2 as f64).powf(v as f64) as u64)`
[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: casting integer literal to `f64` is unnecessary
[INFO] [stdout]   --> src/bin/17.rs:53:24
[INFO] [stdout]    |
[INFO] [stdout] 53 |     reg[0] = reg[0] / ((2 as f64).powf(v as f64) as u64);
[INFO] [stdout]    |                        ^^^^^^^^^^ help: try: `2_f64`
[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: manual implementation of an assign operation
[INFO] [stdout]   --> src/bin/17.rs:58:5
[INFO] [stdout]    |
[INFO] [stdout] 58 |     r[1] = r[1] ^ operand;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `r[1] ^= operand`
[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/bin/17.rs:63:5
[INFO] [stdout]    |
[INFO] [stdout] 63 |     r[1] = r[1] ^ r[2];
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^ help: replace it with: `r[1] ^= r[2]`
[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: called `unwrap` on `s` after checking its variant with `is_some`
[INFO] [stdout]   --> src/bin/17.rs:83:26
[INFO] [stdout]    |
[INFO] [stdout] 82 |             if s.is_some() {
[INFO] [stdout]    |             -------------- help: try: `if let Some(<item>) = s`
[INFO] [stdout] 83 |                 out.push(s.unwrap());
[INFO] [stdout]    |                          ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unnecessary_unwrap
[INFO] [stdout]    = note: `#[warn(clippy::unnecessary_unwrap)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: name `OBSTACLE` contains a capitalized acronym
[INFO] [stdout]  --> src/bin/06.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     OBSTACLE,
[INFO] [stdout]   |     ^^^^^^^^ help: consider making the acronym lowercase, except the initial letter: `Obstacle`
[INFO] [stdout]   |
[INFO] [stdout]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#upper_case_acronyms
[INFO] [stdout]   = note: `#[warn(clippy::upper_case_acronyms)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the loop variable `i` is used to index `file_system`
[INFO] [stdout]   --> src/bin/09.rs:39:14
[INFO] [stdout]    |
[INFO] [stdout] 39 |     for i in 0..file_system.len() {
[INFO] [stdout]    |              ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_range_loop
[INFO] [stdout]    = note: `#[warn(clippy::needless_range_loop)]` on by default
[INFO] [stdout] help: consider using an iterator and enumerate()
[INFO] [stdout]    |
[INFO] [stdout] 39 -     for i in 0..file_system.len() {
[INFO] [stdout] 39 +     for (i, <item>) in file_system.iter().enumerate() {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]   --> src/bin/09.rs:94:5
[INFO] [stdout]    |
[INFO] [stdout] 94 |     return Some(sum);
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stdout]    = note: `#[warn(clippy::needless_return)]` on by default
[INFO] [stdout] help: remove `return`
[INFO] [stdout]    |
[INFO] [stdout] 94 -     return Some(sum);
[INFO] [stdout] 94 +     Some(sum)
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `max_x`
[INFO] [stdout]    --> src/bin/12.rs:118:9
[INFO] [stdout]     |
[INFO] [stdout] 118 |     let max_x= region.points.iter().map(|f|f.0).max().unwrap();
[INFO] [stdout]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_max_x`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `max_y`
[INFO] [stdout]    --> src/bin/12.rs:119:9
[INFO] [stdout]     |
[INFO] [stdout] 119 |     let max_y= region.points.iter().map(|f: &(i32, i32)|f.1).max().unwrap();
[INFO] [stdout]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_max_y`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `min_x`
[INFO] [stdout]    --> src/bin/12.rs:120:9
[INFO] [stdout]     |
[INFO] [stdout] 120 |     let min_x= region.points.iter().map(|f: &(i32, i32)|f.0).min().unwrap();
[INFO] [stdout]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_min_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `min_y`
[INFO] [stdout]    --> src/bin/12.rs:121:9
[INFO] [stdout]     |
[INFO] [stdout] 121 |     let min_y= region.points.iter().map(|f: &(i32, i32)|f.1).min().unwrap();
[INFO] [stdout]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_min_y`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Point` is never constructed
[INFO] [stdout]  --> src/bin/12.rs:6:8
[INFO] [stdout]   |
[INFO] [stdout] 6 | struct Point {
[INFO] [stdout]   |        ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Region` is never constructed
[INFO] [stdout]   --> src/bin/12.rs:13:8
[INFO] [stdout]    |
[INFO] [stdout] 13 | struct Region {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `search_region` is never used
[INFO] [stdout]    --> src/bin/12.rs:112:4
[INFO] [stdout]     |
[INFO] [stdout] 112 | fn search_region(id: i32, region_cluster: HashMap<i32,Region>) -> i32 {
[INFO] [stdout]     |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_region_id` is never used
[INFO] [stdout]    --> src/bin/12.rs:141:4
[INFO] [stdout]     |
[INFO] [stdout] 141 | fn get_region_id(point: (i32,i32), map: HashMap<i32,Region>) -> i32 {
[INFO] [stdout]     |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the variable `file_id` is used as a loop counter
[INFO] [stdout]    --> src/bin/09.rs:101:5
[INFO] [stdout]     |
[INFO] [stdout] 101 |     for chunk in input.chars().collect::<Vec<_>>().chunks(2) {
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using: `for (file_id, chunk) in input.chars().collect::<Vec<_>>().chunks(2).enumerate()`
[INFO] [stdout]     |
[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: accessing first element with `chunk.get(0)`
[INFO] [stdout]    --> src/bin/09.rs:102:39
[INFO] [stdout]     |
[INFO] [stdout] 102 |         if let Some(&file_len_char) = chunk.get(0) {
[INFO] [stdout]     |                                       ^^^^^^^^^^^^ help: try: `chunk.first()`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_first
[INFO] [stdout]     = note: `#[warn(clippy::get_first)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]    --> src/bin/09.rs:144:5
[INFO] [stdout]     |
[INFO] [stdout] 144 |     return (free_space, used_space);
[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] 144 -     return (free_space, used_space);
[INFO] [stdout] 144 +     (free_space, used_space)
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the variable `file_id` is used as a loop counter
[INFO] [stdout]    --> src/bin/09.rs:123:5
[INFO] [stdout]     |
[INFO] [stdout] 123 |     for chunk in input.chars().collect::<Vec<_>>().chunks(2) {
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using: `for (file_id, chunk) in input.chars().collect::<Vec<_>>().chunks(2).enumerate()`
[INFO] [stdout]     |
[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: accessing first element with `chunk.get(0)`
[INFO] [stdout]    --> src/bin/09.rs:124:39
[INFO] [stdout]     |
[INFO] [stdout] 124 |         if let Some(&file_len_char) = chunk.get(0) {
[INFO] [stdout]     |                                       ^^^^^^^^^^^^ help: try: `chunk.first()`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_first
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: length comparison to zero
[INFO] [stdout]   --> src/bin/13.rs:18:62
[INFO] [stdout]    |
[INFO] [stdout] 18 |     let s: u64 =  g.iter().map(|f|calc(f.clone())).filter(|f|f.len() > 0).map(|f| 3* f[0]+ 1*f[1]).sum();
[INFO] [stdout]    |                                                              ^^^^^^^^^^^ help: using `!is_empty` is clearer and more explicit: `!f.is_empty()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stdout]    = note: `#[warn(clippy::len_zero)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this operation has no effect
[INFO] [stdout]   --> src/bin/13.rs:18:92
[INFO] [stdout]    |
[INFO] [stdout] 18 |     let s: u64 =  g.iter().map(|f|calc(f.clone())).filter(|f|f.len() > 0).map(|f| 3* f[0]+ 1*f[1]).sum();
[INFO] [stdout]    |                                                                                            ^^^^^^ help: consider reducing it to: `f[1]`
[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: length comparison to zero
[INFO] [stdout]   --> src/bin/12.rs:31:11
[INFO] [stdout]    |
[INFO] [stdout] 31 |     while grid.len() > 0 {
[INFO] [stdout]    |           ^^^^^^^^^^^^^^ help: using `!is_empty` is clearer and more explicit: `!grid.is_empty()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stdout]    = note: `#[warn(clippy::len_zero)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: casting to the same type is unnecessary (`u64` -> `u64`)
[INFO] [stdout]   --> src/bin/13.rs:19:10
[INFO] [stdout]    |
[INFO] [stdout] 19 |     Some(s as u64)
[INFO] [stdout]    |          ^^^^^^^^ help: try: `s`
[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: length comparison to zero
[INFO] [stdout]   --> src/bin/12.rs:34:15
[INFO] [stdout]    |
[INFO] [stdout] 34 |         while to_visit.len() > 0 {
[INFO] [stdout]    |               ^^^^^^^^^^^^^^^^^^ help: using `!is_empty` is clearer and more explicit: `!to_visit.is_empty()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this `if` statement can be collapsed
[INFO] [stdout]   --> src/bin/12.rs:41:17
[INFO] [stdout]    |
[INFO] [stdout] 41 | /                 if grid.contains_key(&(x, y)) {
[INFO] [stdout] 42 | |                     if grid.get(&(x, y)).unwrap() == grid.get(&(node.0, node.1)).unwrap() {
[INFO] [stdout] 43 | |                         to_visit.insert((x, y));
[INFO] [stdout] 44 | |                     }
[INFO] [stdout] 45 | |                 }
[INFO] [stdout]    | |_________________^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#collapsible_if
[INFO] [stdout]    = note: `#[warn(clippy::collapsible_if)]` on by default
[INFO] [stdout] help: collapse nested if block
[INFO] [stdout]    |
[INFO] [stdout] 41 ~                 if grid.contains_key(&(x, y))
[INFO] [stdout] 42 ~                     && grid.get(&(x, y)).unwrap() == grid.get(&(node.0, node.1)).unwrap() {
[INFO] [stdout] 43 |                         to_visit.insert((x, y));
[INFO] [stdout] 44 ~                     }
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this `if` statement can be collapsed
[INFO] [stdout]   --> src/bin/12.rs:46:17
[INFO] [stdout]    |
[INFO] [stdout] 46 | /                 if orignal_grid.contains_key(&(x, y)) {
[INFO] [stdout] 47 | |                     if orignal_grid.get(&(x, y)).unwrap() == grid.get(&(node.0, node.1)).unwrap() {
[INFO] [stdout] 48 | |                         neighbors -= 1;
[INFO] [stdout] 49 | |                     }
[INFO] [stdout] 50 | |                 }
[INFO] [stdout]    | |_________________^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#collapsible_if
[INFO] [stdout] help: collapse nested if block
[INFO] [stdout]    |
[INFO] [stdout] 46 ~                 if orignal_grid.contains_key(&(x, y))
[INFO] [stdout] 47 ~                     && orignal_grid.get(&(x, y)).unwrap() == grid.get(&(node.0, node.1)).unwrap() {
[INFO] [stdout] 48 |                         neighbors -= 1;
[INFO] [stdout] 49 ~                     }
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: compiling a regex in a loop
[INFO] [stdout]   --> src/bin/13.rs:44:22
[INFO] [stdout]    |
[INFO] [stdout] 44 |             let re = Regex::new(r"[+-]?\d+").unwrap();
[INFO] [stdout]    |                      ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: move the regex construction outside this loop
[INFO] [stdout]   --> src/bin/13.rs:42:9
[INFO] [stdout]    |
[INFO] [stdout] 42 |         for line in game.lines() {
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#regex_creation_in_loops
[INFO] [stdout]    = note: `#[warn(clippy::regex_creation_in_loops)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: useless conversion to the same type: `std::slice::Iter<'_, u64>`
[INFO] [stdout]   --> src/bin/17.rs:89:9
[INFO] [stdout]    |
[INFO] [stdout] 89 | /         out.iter()
[INFO] [stdout] 90 | |             .into_iter()
[INFO] [stdout]    | |________________________^ help: consider removing `.into_iter()`: `out.iter()`
[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] 
[INFO] [stdout] 
[INFO] [stdout] warning: useless conversion to the same type: `std::ops::Range<u64>`
[INFO] [stdout]    --> src/bin/17.rs:102:33
[INFO] [stdout]     |
[INFO] [stdout] 102 |       let result: Vec<Vec<u64>> = (165323019388784..165363019388784)
[INFO] [stdout]     |  _________________________________^
[INFO] [stdout] 103 | |         .into_iter()
[INFO] [stdout]     | |____________________^ help: consider removing `.into_iter()`: `(165323019388784..165363019388784)`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_conversion
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: useless conversion to the same type: `std::str::Split<'_, &str>`
[INFO] [stdout]    --> src/bin/17.rs:135:28
[INFO] [stdout]     |
[INFO] [stdout] 135 |     let split: Vec<&str> = input.split("\n\n").into_iter().collect();
[INFO] [stdout]     |                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider removing `.into_iter()`: `input.split("\n\n")`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_conversion
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: useless conversion to the same type: `std::str::Split<'_, &str>`
[INFO] [stdout]    --> src/bin/17.rs:141:34
[INFO] [stdout]     |
[INFO] [stdout] 141 |       let program: Vec<Vec<u64>> = split[1][9..]
[INFO] [stdout]     |  __________________________________^
[INFO] [stdout] 142 | |         .split(",")
[INFO] [stdout] 143 | |         .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] 141 ~     let program: Vec<Vec<u64>> = split[1][9..]
[INFO] [stdout] 142 +         .split(",")
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: match expression looks like `matches!` macro
[INFO] [stdout]   --> src/bin/06.rs:44:9
[INFO] [stdout]    |
[INFO] [stdout] 44 | /         match self.map.get(&point) {
[INFO] [stdout] 45 | |             Some(Object::OBSTACLE) => true,
[INFO] [stdout] 46 | |             _ => false,
[INFO] [stdout] 47 | |         }
[INFO] [stdout]    | |_________^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_like_matches_macro
[INFO] [stdout]    = note: `#[warn(clippy::match_like_matches_macro)]` on by default
[INFO] [stdout] help: use `matches!` directly
[INFO] [stdout]    |
[INFO] [stdout] 44 -         match self.map.get(&point) {
[INFO] [stdout] 45 -             Some(Object::OBSTACLE) => true,
[INFO] [stdout] 46 -             _ => false,
[INFO] [stdout] 47 -         }
[INFO] [stdout] 44 +         matches!(self.map.get(&point), Some(Object::OBSTACLE))
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: length comparison to zero
[INFO] [stdout]   --> src/bin/12.rs:74:11
[INFO] [stdout]    |
[INFO] [stdout] 74 |     while grid.len() > 0 {
[INFO] [stdout]    |           ^^^^^^^^^^^^^^ help: using `!is_empty` is clearer and more explicit: `!grid.is_empty()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: length comparison to zero
[INFO] [stdout]   --> src/bin/12.rs:78:15
[INFO] [stdout]    |
[INFO] [stdout] 78 |         while to_visit.len() > 0 {
[INFO] [stdout]    |               ^^^^^^^^^^^^^^^^^^ help: using `!is_empty` is clearer and more explicit: `!to_visit.is_empty()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the variable `d` is used as a loop counter
[INFO] [stdout]   --> src/bin/12.rs:83:13
[INFO] [stdout]    |
[INFO] [stdout] 83 |             for (dx, dy) in DIR.iter() {
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using: `for (d, (dx, dy)) in DIR.iter().enumerate()`
[INFO] [stdout]    |
[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: this `if` statement can be collapsed
[INFO] [stdout]   --> src/bin/12.rs:86:17
[INFO] [stdout]    |
[INFO] [stdout] 86 | /                 if grid.contains_key(&(x, y)) {
[INFO] [stdout] 87 | |                     if grid.get(&(x, y)).unwrap() == grid.get(&(node.0, node.1)).unwrap() {
[INFO] [stdout] 88 | |                         to_visit.insert((x, y));
[INFO] [stdout] 89 | |                     }
[INFO] [stdout] 90 | |                 }
[INFO] [stdout]    | |_________________^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#collapsible_if
[INFO] [stdout] help: collapse nested if block
[INFO] [stdout]    |
[INFO] [stdout] 86 ~                 if grid.contains_key(&(x, y))
[INFO] [stdout] 87 ~                     && grid.get(&(x, y)).unwrap() == grid.get(&(node.0, node.1)).unwrap() {
[INFO] [stdout] 88 |                         to_visit.insert((x, y));
[INFO] [stdout] 89 ~                     }
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this `if` statement can be collapsed
[INFO] [stdout]   --> src/bin/12.rs:91:17
[INFO] [stdout]    |
[INFO] [stdout] 91 | /                 if orignal_grid.contains_key(&(x, y)) {
[INFO] [stdout] 92 | |                     if orignal_grid.get(&(x, y)).unwrap() == grid.get(&(node.0, node.1)).unwrap() {
[INFO] [stdout] 93 | |                         neighbors -= 1;
[INFO] [stdout] 94 | |                         crn[d]+=1;
[INFO] [stdout] 95 | |                     }
[INFO] [stdout] 96 | |                 }
[INFO] [stdout]    | |_________________^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#collapsible_if
[INFO] [stdout] help: collapse nested if block
[INFO] [stdout]    |
[INFO] [stdout] 91 ~                 if orignal_grid.contains_key(&(x, y))
[INFO] [stdout] 92 ~                     && orignal_grid.get(&(x, y)).unwrap() == grid.get(&(node.0, node.1)).unwrap() {
[INFO] [stdout] 93 |                         neighbors -= 1;
[INFO] [stdout] 94 |                         crn[d]+=1;
[INFO] [stdout] 95 ~                     }
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]    --> src/bin/12.rs:147:5
[INFO] [stdout]     |
[INFO] [stdout] 147 |     return -1;
[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] 147 -     return -1;
[INFO] [stdout] 147 +     -1
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: length comparison to zero
[INFO] [stdout]   --> src/bin/07.rs:24:23
[INFO] [stdout]    |
[INFO] [stdout] 24 |         'outer: while to_observe.len() > 0 {
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^^^^^^ help: using `!is_empty` is clearer and more explicit: `!to_observe.is_empty()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stdout]    = note: `#[warn(clippy::len_zero)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: length comparison to zero
[INFO] [stdout]   --> src/bin/07.rs:35:46
[INFO] [stdout]    |
[INFO] [stdout] 35 |                     if result < totals[i] && current.len() > 0 {
[INFO] [stdout]    |                                              ^^^^^^^^^^^^^^^^^ help: using `!is_empty` is clearer and more explicit: `!current.is_empty()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: casting to the same type is unnecessary (`u64` -> `u64`)
[INFO] [stdout]   --> src/bin/07.rs:44:10
[INFO] [stdout]    |
[INFO] [stdout] 44 |     Some(sum as u64)
[INFO] [stdout]    |          ^^^^^^^^^^ help: try: `sum`
[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: length comparison to zero
[INFO] [stdout]   --> src/bin/07.rs:53:23
[INFO] [stdout]    |
[INFO] [stdout] 53 |         'outer: while to_observe.len() > 0 {
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^^^^^^ help: using `!is_empty` is clearer and more explicit: `!to_observe.is_empty()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: length comparison to zero
[INFO] [stdout]   --> src/bin/07.rs:64:46
[INFO] [stdout]    |
[INFO] [stdout] 64 |                     if result < totals[i] && current.len() > 0 {
[INFO] [stdout]    |                                              ^^^^^^^^^^^^^^^^^ help: using `!is_empty` is clearer and more explicit: `!current.is_empty()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `dir`
[INFO] [stdout]   --> src/bin/15.rs:84:16
[INFO] [stdout]    |
[INFO] [stdout] 84 |     let (grid, dir,w,h) = parse_pt2(input);
[INFO] [stdout]    |                ^^^ help: if this is intentional, prefix it with an underscore: `_dir`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: casting to the same type is unnecessary (`u64` -> `u64`)
[INFO] [stdout]   --> src/bin/07.rs:73:10
[INFO] [stdout]    |
[INFO] [stdout] 73 |     Some(sum as u64)
[INFO] [stdout]    |          ^^^^^^^^^^ help: try: `sum`
[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: very complex type used. Consider factoring parts into `type` definitions
[INFO] [stdout]    --> src/bin/16.rs:177:30
[INFO] [stdout]     |
[INFO] [stdout] 177 | pub fn parse(input: &str) -> (HashMap<(i32, i32), char>, (i32, i32), (i32, i32)) {
[INFO] [stdout]     |                              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#type_complexity
[INFO] [stdout]     = note: `#[warn(clippy::type_complexity)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: useless conversion to the same type: `std::str::Split<'_, char>`
[INFO] [stdout]    --> src/bin/06.rs:130:22
[INFO] [stdout]     |
[INFO] [stdout] 130 |     for (y, line) in input.split('\n').into_iter().enumerate() {
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider removing `.into_iter()`: `input.split('\n')`
[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] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Movable` is never used
[INFO] [stdout]   --> src/bin/15.rs:24:7
[INFO] [stdout]    |
[INFO] [stdout] 24 | trait Movable {
[INFO] [stdout]    |       ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: manual implementation of an assign operation
[INFO] [stdout]   --> src/bin/15.rs:31:9
[INFO] [stdout]    |
[INFO] [stdout] 31 |         self.pos[0][0] = self.pos[0][0] + DIR[dir as usize].0;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `self.pos[0][0] += DIR[dir as usize].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]    = note: `#[warn(clippy::assign_op_pattern)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: manual implementation of an assign operation
[INFO] [stdout]   --> src/bin/15.rs:32:9
[INFO] [stdout]    |
[INFO] [stdout] 32 |         self.pos[0][1] = self.pos[0][1] + DIR[dir as usize].1;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `self.pos[0][1] += DIR[dir as usize].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/bin/15.rs:33:9
[INFO] [stdout]    |
[INFO] [stdout] 33 |         self.pos[1][0] = self.pos[1][0] + DIR[dir as usize].0;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `self.pos[1][0] += DIR[dir as usize].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/bin/15.rs:34:9
[INFO] [stdout]    |
[INFO] [stdout] 34 |         self.pos[1][1] = self.pos[1][1] + DIR[dir as usize].1;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `self.pos[1][1] += DIR[dir as usize].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/bin/15.rs:43:9
[INFO] [stdout]    |
[INFO] [stdout] 43 |         self.pos[0] = self.pos[0] + DIR[dir as usize].0;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `self.pos[0] += DIR[dir as usize].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/bin/15.rs:44:9
[INFO] [stdout]    |
[INFO] [stdout] 44 |         self.pos[1] = self.pos[1] + DIR[dir as usize].1;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `self.pos[1] += DIR[dir as usize].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: useless conversion to the same type: `std::str::Split<'_, char>`
[INFO] [stdout]    --> src/bin/08.rs:165:22
[INFO] [stdout]     |
[INFO] [stdout] 165 |     for (y, line) in input.split('\n').into_iter().enumerate() {
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider removing `.into_iter()`: `input.split('\n')`
[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] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `clone` on type `(i32, i32)` which implements the `Copy` trait
[INFO] [stdout]   --> src/bin/15.rs:93:23
[INFO] [stdout]    |
[INFO] [stdout] 93 |         .map(|(k, _)| k.clone())
[INFO] [stdout]    |                       ^^^^^^^^^ help: try dereferencing it: `*k`
[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: very complex type used. Consider factoring parts into `type` definitions
[INFO] [stdout]    --> src/bin/15.rs:124:26
[INFO] [stdout]     |
[INFO] [stdout] 124 | fn parse(input: &str) -> (HashMap<(i32, i32), char>, Vec<i32>, (i32, i32)) {
[INFO] [stdout]     |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#type_complexity
[INFO] [stdout]     = note: `#[warn(clippy::type_complexity)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]    --> src/bin/15.rs:140:13
[INFO] [stdout]     |
[INFO] [stdout] 140 | /             return match c {
[INFO] [stdout] 141 | |                 '^' => 0,
[INFO] [stdout] 142 | |                 '>' => 1,
[INFO] [stdout] 143 | |                 'v' => 2,
[INFO] [stdout] 144 | |                 '<' => 3,
[INFO] [stdout] 145 | |                 _ => 0,
[INFO] [stdout] 146 | |             };
[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] 140 ~             match c {
[INFO] [stdout] 141 +                 '^' => 0,
[INFO] [stdout] 142 +                 '>' => 1,
[INFO] [stdout] 143 +                 'v' => 2,
[INFO] [stdout] 144 +                 '<' => 3,
[INFO] [stdout] 145 +                 _ => 0,
[INFO] [stdout] 146 ~             }
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]    --> src/bin/15.rs:194:13
[INFO] [stdout]     |
[INFO] [stdout] 194 | /             return match c {
[INFO] [stdout] 195 | |                 '^' => 0,
[INFO] [stdout] 196 | |                 '>' => 1,
[INFO] [stdout] 197 | |                 'v' => 2,
[INFO] [stdout] 198 | |                 '<' => 3,
[INFO] [stdout] 199 | |                 _ => 0,
[INFO] [stdout] 200 | |             };
[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] 194 ~             match c {
[INFO] [stdout] 195 +                 '^' => 0,
[INFO] [stdout] 196 +                 '>' => 1,
[INFO] [stdout] 197 +                 'v' => 2,
[INFO] [stdout] 198 +                 '<' => 3,
[INFO] [stdout] 199 +                 _ => 0,
[INFO] [stdout] 200 ~             }
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: empty string literal in `println!`
[INFO] [stdout]    --> src/bin/15.rs:211:9
[INFO] [stdout]     |
[INFO] [stdout] 211 |         println!("");
[INFO] [stdout]     |         ^^^^^^^^^--^
[INFO] [stdout]     |                  |
[INFO] [stdout]     |                  help: remove the empty string
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#println_empty_string
[INFO] [stdout]     = note: `#[warn(clippy::println_empty_string)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: empty string literal in `println!`
[INFO] [stdout]    --> src/bin/15.rs:239:9
[INFO] [stdout]     |
[INFO] [stdout] 239 |         println!("");
[INFO] [stdout]     |         ^^^^^^^^^--^
[INFO] [stdout]     |                  |
[INFO] [stdout]     |                  help: remove the empty string
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#println_empty_string
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]    --> src/bin/15.rs:267:5
[INFO] [stdout]     |
[INFO] [stdout] 267 |     return Some(Obstacle::Empty(Empty {}));
[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] 267 -     return Some(Obstacle::Empty(Empty {}));
[INFO] [stdout] 267 +     Some(Obstacle::Empty(Empty {}))
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this expression creates a reference which is immediately dereferenced by the compiler
[INFO] [stdout]   --> src/bin/19.rs:12:43
[INFO] [stdout]    |
[INFO] [stdout] 12 |         .filter(|&designs| count_possible(&designs, &towels, &mut memo) > 0)
[INFO] [stdout]    |                                           ^^^^^^^^ help: change this to: `designs`
[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: stripping a prefix manually
[INFO] [stdout]   --> src/bin/19.rs:25:37
[INFO] [stdout]    |
[INFO] [stdout] 25 |             count += count_possible(&pattern[towel.len()..], &towels, memo);
[INFO] [stdout]    |                                     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: the prefix was tested here
[INFO] [stdout]   --> src/bin/19.rs:24:9
[INFO] [stdout]    |
[INFO] [stdout] 24 |         if pattern.starts_with(towel) {
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#manual_strip
[INFO] [stdout]    = note: `#[warn(clippy::manual_strip)]` on by default
[INFO] [stdout] help: try using the `strip_prefix` method
[INFO] [stdout]    |
[INFO] [stdout] 24 ~         if let Some(<stripped>) = pattern.strip_prefix(towel) {
[INFO] [stdout] 25 ~             count += count_possible(<stripped>, &towels, memo);
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this expression creates a reference which is immediately dereferenced by the compiler
[INFO] [stdout]   --> src/bin/19.rs:25:62
[INFO] [stdout]    |
[INFO] [stdout] 25 |             count += count_possible(&pattern[towel.len()..], &towels, memo);
[INFO] [stdout]    |                                                              ^^^^^^^ help: change this to: `towels`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_borrow
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this expression creates a reference which is immediately dereferenced by the compiler
[INFO] [stdout]   --> src/bin/19.rs:39:40
[INFO] [stdout]    |
[INFO] [stdout] 39 |         .map(|&designs| count_possible(&designs, &towels, &mut memo))
[INFO] [stdout]    |                                        ^^^^^^^^ help: change this to: `designs`
[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: unused variable: `input`
[INFO] [stdout]   --> src/bin/14.rs:54:17
[INFO] [stdout]    |
[INFO] [stdout] 54 | pub fn part_two(input: &str) -> Option<u32> {
[INFO] [stdout]    |                 ^^^^^ help: if this is intentional, prefix it with an underscore: `_input`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]   --> src/bin/14.rs:58:28
[INFO] [stdout]    |
[INFO] [stdout] 58 | fn print_matrix_with_point(x: usize, y: usize, set: HashSet<String>) {
[INFO] [stdout]    |                            ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `y`
[INFO] [stdout]   --> src/bin/14.rs:58:38
[INFO] [stdout]    |
[INFO] [stdout] 58 | fn print_matrix_with_point(x: usize, y: usize, set: HashSet<String>) {
[INFO] [stdout]    |                                      ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: importing legacy numeric constants
[INFO] [stdout]  --> src/bin/14.rs:1:33
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{collections::HashSet, i32};
[INFO] [stdout]   |                                 ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = help: remove this import
[INFO] [stdout]   = note: then `i32::<CONST>` will resolve to the respective associated constant
[INFO] [stdout]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#legacy_numeric_constants
[INFO] [stdout]   = note: `#[warn(clippy::legacy_numeric_constants)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]   --> src/bin/14.rs:30:13
[INFO] [stdout]    |
[INFO] [stdout] 30 |             return vec![f[0], f[1]];
[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] 30 -             return vec![f[0], f[1]];
[INFO] [stdout] 30 +             vec![f[0], f[1]]
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: useless conversion to the same type: `std::str::Lines<'_>`
[INFO] [stdout]   --> src/bin/14.rs:79:5
[INFO] [stdout]    |
[INFO] [stdout] 79 | /     input
[INFO] [stdout] 80 | |         .lines()
[INFO] [stdout] 81 | |         .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] 79 ~     input
[INFO] [stdout] 80 +         .lines()
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: useless conversion to the same type: `std::str::Split<'_, char>`
[INFO] [stdout]    --> src/bin/08.rs:165:22
[INFO] [stdout]     |
[INFO] [stdout] 165 |     for (y, line) in input.split('\n').into_iter().enumerate() {
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider removing `.into_iter()`: `input.split('\n')`
[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] 
[INFO] [stdout] 
[INFO] [stdout] warning: writing `&Vec` instead of `&[_]` involves a new object where a slice will do
[INFO] [stdout]   --> src/bin/05.rs:45:51
[INFO] [stdout]    |
[INFO] [stdout] 45 | fn is_ordered(map: &HashMap<i32, Vec<i32>>, item: &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] 45 - fn is_ordered(map: &HashMap<i32, Vec<i32>>, item: &Vec<i32>) -> bool {
[INFO] [stdout] 45 + fn is_ordered(map: &HashMap<i32, Vec<i32>>, item: &[i32]) -> bool {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: length comparison to zero
[INFO] [stdout]   --> src/bin/05.rs:49:16
[INFO] [stdout]    |
[INFO] [stdout] 49 |             if dep.len() > 0 {
[INFO] [stdout]    |                ^^^^^^^^^^^^^ help: using `!is_empty` is clearer and more explicit: `!dep.is_empty()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stdout]    = note: `#[warn(clippy::len_zero)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the loop variable `j` is only used to index `item`
[INFO] [stdout]   --> src/bin/05.rs:50:26
[INFO] [stdout]    |
[INFO] [stdout] 50 |                 for j in i + 1..item.len() {
[INFO] [stdout]    |                          ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_range_loop
[INFO] [stdout]    = note: `#[warn(clippy::needless_range_loop)]` on by default
[INFO] [stdout] help: consider using an iterator
[INFO] [stdout]    |
[INFO] [stdout] 50 -                 for j in i + 1..item.len() {
[INFO] [stdout] 50 +                 for <item> in item.iter().skip(i + 1) {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `input`
[INFO] [stdout]   --> src/bin/14.rs:54:17
[INFO] [stdout]    |
[INFO] [stdout] 54 | pub fn part_two(input: &str) -> Option<u32> {
[INFO] [stdout]    |                 ^^^^^ help: if this is intentional, prefix it with an underscore: `_input`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]   --> src/bin/14.rs:58:28
[INFO] [stdout]    |
[INFO] [stdout] 58 | fn print_matrix_with_point(x: usize, y: usize, set: HashSet<String>) {
[INFO] [stdout]    |                            ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of `or_insert_with` to construct default value
[INFO] [stdout]   --> src/bin/05.rs:72:24
[INFO] [stdout]    |
[INFO] [stdout] 72 |         map.entry(key).or_insert_with(Vec::new).push(value);
[INFO] [stdout]    |                        ^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `or_default()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unwrap_or_default
[INFO] [stdout]    = note: `#[warn(clippy::unwrap_or_default)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this loop could be written as a `for` loop
[INFO] [stdout]   --> src/bin/05.rs:78:9
[INFO] [stdout]    |
[INFO] [stdout] 78 |         while let Some(part) = parts.next() {
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `for part in parts`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#while_let_on_iterator
[INFO] [stdout]    = note: `#[warn(clippy::while_let_on_iterator)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `y`
[INFO] [stdout]   --> src/bin/14.rs:58:38
[INFO] [stdout]    |
[INFO] [stdout] 58 | fn print_matrix_with_point(x: usize, y: usize, set: HashSet<String>) {
[INFO] [stdout]    |                                      ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: importing legacy numeric constants
[INFO] [stdout]  --> src/bin/14.rs:1:33
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{collections::HashSet, i32};
[INFO] [stdout]   |                                 ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = help: remove this import
[INFO] [stdout]   = note: then `i32::<CONST>` will resolve to the respective associated constant
[INFO] [stdout]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#legacy_numeric_constants
[INFO] [stdout]   = note: `#[warn(clippy::legacy_numeric_constants)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]   --> src/bin/14.rs:30:13
[INFO] [stdout]    |
[INFO] [stdout] 30 |             return vec![f[0], f[1]];
[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] 30 -             return vec![f[0], f[1]];
[INFO] [stdout] 30 +             vec![f[0], f[1]]
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: useless conversion to the same type: `std::str::Lines<'_>`
[INFO] [stdout]   --> src/bin/14.rs:79:5
[INFO] [stdout]    |
[INFO] [stdout] 79 | /     input
[INFO] [stdout] 80 | |         .lines()
[INFO] [stdout] 81 | |         .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] 79 ~     input
[INFO] [stdout] 80 +         .lines()
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.10s
[INFO] running `Command { std: "docker" "inspect" "79cf008f22f1a8604f3271c5c93f2cefa12eb88c4ee1a9cfb3b7b5a7554fd21e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "79cf008f22f1a8604f3271c5c93f2cefa12eb88c4ee1a9cfb3b7b5a7554fd21e", kill_on_drop: false }`
[INFO] [stdout] 79cf008f22f1a8604f3271c5c93f2cefa12eb88c4ee1a9cfb3b7b5a7554fd21e