[INFO] cloning repository https://github.com/dbanetto/aoc-2023
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dbanetto/aoc-2023" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdbanetto%2Faoc-2023", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdbanetto%2Faoc-2023'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 28713f2e716e43b7926549d06d60ac2e0ef0fdc3
[INFO] linting dbanetto/aoc-2023 against nightly for clippy-nonminimal_bool-denied
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdbanetto%2Faoc-2023" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/dbanetto/aoc-2023
[INFO] finished tweaking git repo https://github.com/dbanetto/aoc-2023
[INFO] tweaked toml for git repo https://github.com/dbanetto/aoc-2023 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/dbanetto/aoc-2023 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/dbanetto/aoc-2023 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+nightly" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 7b2ec52296b8b2ce7b8c66b2661b98ac760101daa0ebf4cfe8ee99e73a7f751f
[INFO] running `Command { std: "docker" "start" "-a" "7b2ec52296b8b2ce7b8c66b2661b98ac760101daa0ebf4cfe8ee99e73a7f751f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7b2ec52296b8b2ce7b8c66b2661b98ac760101daa0ebf4cfe8ee99e73a7f751f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7b2ec52296b8b2ce7b8c66b2661b98ac760101daa0ebf4cfe8ee99e73a7f751f", kill_on_drop: false }`
[INFO] [stdout] 7b2ec52296b8b2ce7b8c66b2661b98ac760101daa0ebf4cfe8ee99e73a7f751f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 1d892a557f2a236bd15c7c3d00561654e4b4fc650c70f5ed4a163b565d62ada4
[INFO] running `Command { std: "docker" "start" "-a" "1d892a557f2a236bd15c7c3d00561654e4b4fc650c70f5ed4a163b565d62ada4", kill_on_drop: false }`
[INFO] [stderr]     Checking day05 v0.1.0 (/opt/rustwide/workdir/day05)
[INFO] [stderr]     Checking day07 v0.1.0 (/opt/rustwide/workdir/day07)
[INFO] [stderr]     Checking day01 v0.1.0 (/opt/rustwide/workdir/day01)
[INFO] [stderr]     Checking day06 v0.1.0 (/opt/rustwide/workdir/day06)
[INFO] [stderr]     Checking day09 v0.1.0 (/opt/rustwide/workdir/day09)
[INFO] [stderr]     Checking day02 v0.1.0 (/opt/rustwide/workdir/day02)
[INFO] [stderr]     Checking day03 v0.1.0 (/opt/rustwide/workdir/day03)
[INFO] [stdout] warning: unused import: `std::ops::Range`
[INFO] [stdout]  --> day06/src/main.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::ops::Range;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: redundant field names in struct initialization
[INFO] [stdout]   --> day03/src/main.rs:89:13
[INFO] [stdout]    |
[INFO] [stdout] 89 |             counter: counter,
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^ help: replace it with: `counter`
[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: matching on `Some` with `ok()` is redundant
[INFO] [stdout]  --> day01/src/main.rs:9:9
[INFO] [stdout]   |
[INFO] [stdout] 9 |         if let Some(line) = line.ok() {
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_result_ok
[INFO] [stdout]   = note: `#[warn(clippy::match_result_ok)]` on by default
[INFO] [stdout] help: consider matching on `Ok(line)` and removing the call to `ok` instead
[INFO] [stdout]   |
[INFO] [stdout] 9 -         if let Some(line) = line.ok() {
[INFO] [stdout] 9 +         if let Ok(line) = line {
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]   --> day01/src/main.rs:59:5
[INFO] [stdout]    |
[INFO] [stdout] 59 |     return (first.unwrap_or_default().1, last.unwrap_or_default().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] 59 -     return (first.unwrap_or_default().1, last.unwrap_or_default().1);
[INFO] [stdout] 59 +     (first.unwrap_or_default().1, last.unwrap_or_default().1)
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: matching on `Some` with `ok()` is redundant
[INFO] [stdout]  --> day09/src/main.rs:9:9
[INFO] [stdout]   |
[INFO] [stdout] 9 |         if let Some(line) = line.ok() {
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_result_ok
[INFO] [stdout]   = note: `#[warn(clippy::match_result_ok)]` on by default
[INFO] [stdout] help: consider matching on `Ok(line)` and removing the call to `ok` instead
[INFO] [stdout]   |
[INFO] [stdout] 9 -         if let Some(line) = line.ok() {
[INFO] [stdout] 9 +         if let Ok(line) = line {
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]   --> day09/src/main.rs:38:9
[INFO] [stdout]    |
[INFO] [stdout] 38 |         return Ok(Series { numbers: nums });
[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] 38 -         return Ok(Series { numbers: nums });
[INFO] [stdout] 38 +         Ok(Series { numbers: nums })
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this `.fold` can be written more succinctly using another method
[INFO] [stdout]   --> day09/src/main.rs:44:32
[INFO] [stdout]    |
[INFO] [stdout] 44 |         if self.numbers.iter().fold(true, |acc, n| *n == 0 && acc) {
[INFO] [stdout]    |                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `all(|n| *n == 0)`
[INFO] [stdout]    |
[INFO] [stdout]    = note: the `all` method is short circuiting and may change the program semantics if the iterator has side effects
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unnecessary_fold
[INFO] [stdout]    = note: `#[warn(clippy::unnecessary_fold)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this `.fold` can be written more succinctly using another method
[INFO] [stdout]   --> day09/src/main.rs:52:32
[INFO] [stdout]    |
[INFO] [stdout] 52 |         if self.numbers.iter().fold(true, |acc, n| *n == 0 && acc) {
[INFO] [stdout]    |                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `all(|n| *n == 0)`
[INFO] [stdout]    |
[INFO] [stdout]    = note: the `all` method is short circuiting and may change the program semantics if the iterator has side effects
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unnecessary_fold
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `.iter().next()` on an array
[INFO] [stdout]   --> day09/src/main.rs:55:13
[INFO] [stdout]    |
[INFO] [stdout] 55 |             self.numbers.iter().next().unwrap() - self.deriviative().predict_prev()
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try calling: `self.numbers.first()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#iter_next_slice
[INFO] [stdout]    = note: `#[warn(clippy::iter_next_slice)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]   --> day09/src/main.rs:70:9
[INFO] [stdout]    |
[INFO] [stdout] 70 | /         return Series {
[INFO] [stdout] 71 | |             numbers: derv.collect(),
[INFO] [stdout] 72 | |         };
[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] 70 ~         Series {
[INFO] [stdout] 71 +             numbers: derv.collect(),
[INFO] [stdout] 72 ~         }
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking day08 v0.1.0 (/opt/rustwide/workdir/day08)
[INFO] [stderr]     Checking day04 v0.1.0 (/opt/rustwide/workdir/day04)
[INFO] [stdout] warning: matching on `Some` with `ok()` is redundant
[INFO] [stdout]   --> day03/src/main.rs:13:9
[INFO] [stdout]    |
[INFO] [stdout] 13 |         if let Some(line) = line.ok() {
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_result_ok
[INFO] [stdout]    = note: `#[warn(clippy::match_result_ok)]` on by default
[INFO] [stdout] help: consider matching on `Ok(line)` and removing the call to `ok` instead
[INFO] [stdout]    |
[INFO] [stdout] 13 -         if let Some(line) = line.ok() {
[INFO] [stdout] 13 +         if let Ok(line) = line {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]   --> day03/src/main.rs:84:9
[INFO] [stdout]    |
[INFO] [stdout] 84 | /         return Board {
[INFO] [stdout] 85 | |             last: self.current,
[INFO] [stdout] 86 | |             current: self.next,
[INFO] [stdout] 87 | |             next: Some(block),
[INFO] [stdout] ...  |
[INFO] [stdout] 90 | |             gear_ratio: ratio,
[INFO] [stdout] 91 | |         };
[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] 84 ~         Board {
[INFO] [stdout] 85 +             last: self.current,
[INFO] [stdout] 86 +             current: self.next,
[INFO] [stdout] 87 +             next: Some(block),
[INFO] [stdout] 88 + 
[INFO] [stdout] 89 +             counter: counter,
[INFO] [stdout] 90 +             gear_ratio: ratio,
[INFO] [stdout] 91 ~         }
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of `char::is_digit` with literal radix of 10
[INFO] [stdout]   --> day03/src/main.rs:50:16
[INFO] [stdout]    |
[INFO] [stdout] 50 |             if char.is_digit(10) {
[INFO] [stdout]    |                ^^^^^^^^^^^^^^^^^ help: try: `char.is_ascii_digit()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#is_digit_ascii_radix
[INFO] [stdout]    = note: `#[warn(clippy::is_digit_ascii_radix)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: length comparison to zero
[INFO] [stdout]   --> day03/src/main.rs:52:23
[INFO] [stdout]    |
[INFO] [stdout] 52 |             } else if buf.len() != 0 {
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^ help: using `!is_empty` is clearer and more explicit: `!buf.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: use of `char::is_digit` with literal radix of 10
[INFO] [stdout]   --> day03/src/main.rs:63:17
[INFO] [stdout]    |
[INFO] [stdout] 63 |             if !char.is_digit(10) && char == '*' {
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^ help: try: `char.is_ascii_digit()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#is_digit_ascii_radix
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of `char::is_digit` with literal radix of 10
[INFO] [stdout]   --> day03/src/main.rs:65:24
[INFO] [stdout]    |
[INFO] [stdout] 65 |             } else if !char.is_digit(10) && char != '.' {
[INFO] [stdout]    |                        ^^^^^^^^^^^^^^^^^ help: try: `char.is_ascii_digit()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#is_digit_ascii_radix
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: length comparison to zero
[INFO] [stdout]   --> day03/src/main.rs:69:12
[INFO] [stdout]    |
[INFO] [stdout] 69 |         if buf.len() != 0 {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^ help: using `!is_empty` is clearer and more explicit: `!buf.is_empty()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]    --> day03/src/main.rs:123:9
[INFO] [stdout]     |
[INFO] [stdout] 123 |         return val;
[INFO] [stdout]     |         ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stdout] help: remove `return`
[INFO] [stdout]     |
[INFO] [stdout] 123 -         return val;
[INFO] [stdout] 123 +         val
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ops::Range`
[INFO] [stdout]  --> day06/src/main.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::ops::Range;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]    --> day03/src/main.rs:159:9
[INFO] [stdout]     |
[INFO] [stdout] 159 |         return val;
[INFO] [stdout]     |         ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stdout] help: remove `return`
[INFO] [stdout]     |
[INFO] [stdout] 159 -         return val;
[INFO] [stdout] 159 +         val
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this `.fold` can be written more succinctly using another method
[INFO] [stdout]    --> day03/src/main.rs:155:37
[INFO] [stdout]     |
[INFO] [stdout] 155 |                 val += found.iter().fold(1, |acc, i| acc * i)
[INFO] [stdout]     |                                     ^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `product::<i32>()`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unnecessary_fold
[INFO] [stdout]     = note: `#[warn(clippy::unnecessary_fold)]` 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]    --> day03/src/main.rs:163:36
[INFO] [stdout]     |
[INFO] [stdout] 163 | fn find_adjacent(idx: usize, list: &Vec<Span>) -> Vec<i32> {
[INFO] [stdout]     |                                    ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stdout]     = note: `#[warn(clippy::ptr_arg)]` on by default
[INFO] [stdout] help: change this to
[INFO] [stdout]     |
[INFO] [stdout] 163 - fn find_adjacent(idx: usize, list: &Vec<Span>) -> Vec<i32> {
[INFO] [stdout] 163 + fn find_adjacent(idx: usize, list: &[Span]) -> Vec<i32> {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> day05/src/main.rs:98:9
[INFO] [stdout]    |
[INFO] [stdout] 98 |     let mut smallest: Option<(u64, u64)> = None;
[INFO] [stdout]    |         ----^^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: matching on `Some` with `ok()` is redundant
[INFO] [stdout]   --> day05/src/main.rs:22:9
[INFO] [stdout]    |
[INFO] [stdout] 22 |         if let Some(line) = line.ok() {
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_result_ok
[INFO] [stdout]    = note: `#[warn(clippy::match_result_ok)]` on by default
[INFO] [stdout] help: consider matching on `Ok(line)` and removing the call to `ok` instead
[INFO] [stdout]    |
[INFO] [stdout] 22 -         if let Some(line) = line.ok() {
[INFO] [stdout] 22 +         if let Ok(line) = line {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: comparison to empty slice
[INFO] [stdout]   --> day05/src/main.rs:23:16
[INFO] [stdout]    |
[INFO] [stdout] 23 |             if line == "" {
[INFO] [stdout]    |                ^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `line.is_empty()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#comparison_to_empty
[INFO] [stdout]    = note: `#[warn(clippy::comparison_to_empty)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]    --> day05/src/main.rs:204:9
[INFO] [stdout]     |
[INFO] [stdout] 204 |         return (num, self.destination);
[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] 204 -         return (num, self.destination);
[INFO] [stdout] 204 +         (num, self.destination)
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `id` is never read
[INFO] [stdout]   --> day04/src/main.rs:39:5
[INFO] [stdout]    |
[INFO] [stdout] 38 | struct Card {
[INFO] [stdout]    |        ---- field in this struct
[INFO] [stdout] 39 |     id: i32,
[INFO] [stdout]    |     ^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Card` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: matching on `Some` with `ok()` is redundant
[INFO] [stdout]   --> day04/src/main.rs:15:9
[INFO] [stdout]    |
[INFO] [stdout] 15 |         if let Some(line) = line.ok() {
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_result_ok
[INFO] [stdout]    = note: `#[warn(clippy::match_result_ok)]` on by default
[INFO] [stdout] help: consider matching on `Ok(line)` and removing the call to `ok` instead
[INFO] [stdout]    |
[INFO] [stdout] 15 -         if let Some(line) = line.ok() {
[INFO] [stdout] 15 +         if let Ok(line) = line {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: redundant field names in struct initialization
[INFO] [stdout]    --> day02/src/main.rs:129:13
[INFO] [stdout]     |
[INFO] [stdout] 129 |             games: games,
[INFO] [stdout]     |             ^^^^^^^^^^^^ help: replace it with: `games`
[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: unneeded `return` statement
[INFO] [stdout]   --> day04/src/main.rs:70:9
[INFO] [stdout]    |
[INFO] [stdout] 70 |         return intersection.count().try_into().unwrap();
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stdout]    = note: `#[warn(clippy::needless_return)]` on by default
[INFO] [stdout] help: remove `return`
[INFO] [stdout]    |
[INFO] [stdout] 70 -         return intersection.count().try_into().unwrap();
[INFO] [stdout] 70 +         intersection.count().try_into().unwrap()
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]   --> day04/src/main.rs:77:13
[INFO] [stdout]    |
[INFO] [stdout] 77 |             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] help: remove `return`
[INFO] [stdout]    |
[INFO] [stdout] 77 -             return 1;
[INFO] [stdout] 77 +             1
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]   --> day04/src/main.rs:88:5
[INFO] [stdout]    |
[INFO] [stdout] 88 | /     return HashSet::from_iter(
[INFO] [stdout] 89 | |         s.trim()
[INFO] [stdout] 90 | |             .split(" ")
[INFO] [stdout] 91 | |             .filter_map(|s| i32::from_str(s.trim()).ok()),
[INFO] [stdout] 92 | |     );
[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] 88 ~     HashSet::from_iter(
[INFO] [stdout] 89 +         s.trim()
[INFO] [stdout] 90 +             .split(" ")
[INFO] [stdout] 91 +             .filter_map(|s| i32::from_str(s.trim()).ok()),
[INFO] [stdout] 92 ~     )
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: matching on `Some` with `ok()` is redundant
[INFO] [stdout]  --> day01/src/main.rs:9:9
[INFO] [stdout]   |
[INFO] [stdout] 9 |         if let Some(line) = line.ok() {
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_result_ok
[INFO] [stdout]   = note: `#[warn(clippy::match_result_ok)]` on by default
[INFO] [stdout] help: consider matching on `Ok(line)` and removing the call to `ok` instead
[INFO] [stdout]   |
[INFO] [stdout] 9 -         if let Some(line) = line.ok() {
[INFO] [stdout] 9 +         if let Ok(line) = line {
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]   --> day01/src/main.rs:59:5
[INFO] [stdout]    |
[INFO] [stdout] 59 |     return (first.unwrap_or_default().1, last.unwrap_or_default().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] 59 -     return (first.unwrap_or_default().1, last.unwrap_or_default().1);
[INFO] [stdout] 59 +     (first.unwrap_or_default().1, last.unwrap_or_default().1)
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: redundant field names in struct initialization
[INFO] [stdout]    --> day02/src/main.rs:129:13
[INFO] [stdout]     |
[INFO] [stdout] 129 |             games: games,
[INFO] [stdout]     |             ^^^^^^^^^^^^ help: replace it with: `games`
[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: field `id` is never read
[INFO] [stdout]   --> day04/src/main.rs:39:5
[INFO] [stdout]    |
[INFO] [stdout] 38 | struct Card {
[INFO] [stdout]    |        ---- field in this struct
[INFO] [stdout] 39 |     id: i32,
[INFO] [stdout]    |     ^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Card` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: matching on `Some` with `ok()` is redundant
[INFO] [stdout]   --> day04/src/main.rs:15:9
[INFO] [stdout]    |
[INFO] [stdout] 15 |         if let Some(line) = line.ok() {
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_result_ok
[INFO] [stdout]    = note: `#[warn(clippy::match_result_ok)]` on by default
[INFO] [stdout] help: consider matching on `Ok(line)` and removing the call to `ok` instead
[INFO] [stdout]    |
[INFO] [stdout] 15 -         if let Some(line) = line.ok() {
[INFO] [stdout] 15 +         if let Ok(line) = line {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]   --> day04/src/main.rs:70:9
[INFO] [stdout]    |
[INFO] [stdout] 70 |         return intersection.count().try_into().unwrap();
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stdout]    = note: `#[warn(clippy::needless_return)]` on by default
[INFO] [stdout] help: remove `return`
[INFO] [stdout]    |
[INFO] [stdout] 70 -         return intersection.count().try_into().unwrap();
[INFO] [stdout] 70 +         intersection.count().try_into().unwrap()
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]   --> day04/src/main.rs:77:13
[INFO] [stdout]    |
[INFO] [stdout] 77 |             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] help: remove `return`
[INFO] [stdout]    |
[INFO] [stdout] 77 -             return 1;
[INFO] [stdout] 77 +             1
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]   --> day04/src/main.rs:88:5
[INFO] [stdout]    |
[INFO] [stdout] 88 | /     return HashSet::from_iter(
[INFO] [stdout] 89 | |         s.trim()
[INFO] [stdout] 90 | |             .split(" ")
[INFO] [stdout] 91 | |             .filter_map(|s| i32::from_str(s.trim()).ok()),
[INFO] [stdout] 92 | |     );
[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] 88 ~     HashSet::from_iter(
[INFO] [stdout] 89 +         s.trim()
[INFO] [stdout] 90 +             .split(" ")
[INFO] [stdout] 91 +             .filter_map(|s| i32::from_str(s.trim()).ok()),
[INFO] [stdout] 92 ~     )
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: matching on `Some` with `ok()` is redundant
[INFO] [stdout]   --> day02/src/main.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 |         if let Some(line) = line.ok() {
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_result_ok
[INFO] [stdout]    = note: `#[warn(clippy::match_result_ok)]` on by default
[INFO] [stdout] help: consider matching on `Ok(line)` and removing the call to `ok` instead
[INFO] [stdout]    |
[INFO] [stdout] 11 -         if let Some(line) = line.ok() {
[INFO] [stdout] 11 +         if let Ok(line) = line {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this `.fold` can be written more succinctly using another method
[INFO] [stdout]   --> day02/src/main.rs:20:18
[INFO] [stdout]    |
[INFO] [stdout] 20 |                 .fold(true, |acc, g| acc && g.is_valid(12, 14, 13))
[INFO] [stdout]    |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `all(|g| g.is_valid(12, 14, 13))`
[INFO] [stdout]    |
[INFO] [stdout]    = note: the `all` method is short circuiting and may change the program semantics if the iterator has side effects
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unnecessary_fold
[INFO] [stdout]    = note: `#[warn(clippy::unnecessary_fold)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: match can be simplified with `.unwrap_or_default()`
[INFO] [stdout]   --> day02/src/main.rs:25:22
[INFO] [stdout]    |
[INFO] [stdout] 25 |               power += match game.power() {
[INFO] [stdout]    |  ______________________^
[INFO] [stdout] 26 | |                 Some(v) => v,
[INFO] [stdout] 27 | |                 None => 0,
[INFO] [stdout] 28 | |             };
[INFO] [stdout]    | |_____________^ help: ascribe the type u32 and replace your expression with: `game.power().unwrap_or_default()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#manual_unwrap_or_default
[INFO] [stdout]    = note: `#[warn(clippy::manual_unwrap_or_default)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]   --> day02/src/main.rs:97:9
[INFO] [stdout]    |
[INFO] [stdout] 97 |         return true;
[INFO] [stdout]    |         ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stdout]    = note: `#[warn(clippy::needless_return)]` on by default
[INFO] [stdout] help: remove `return`
[INFO] [stdout]    |
[INFO] [stdout] 97 -         return true;
[INFO] [stdout] 97 +         true
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]    --> day02/src/main.rs:127:9
[INFO] [stdout]     |
[INFO] [stdout] 127 | /         return Ok(GameSet {
[INFO] [stdout] 128 | |             id: num,
[INFO] [stdout] 129 | |             games: games,
[INFO] [stdout] 130 | |         });
[INFO] [stdout]     | |__________^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stdout] help: remove `return`
[INFO] [stdout]     |
[INFO] [stdout] 127 ~         Ok(GameSet {
[INFO] [stdout] 128 +             id: num,
[INFO] [stdout] 129 +             games: games,
[INFO] [stdout] 130 ~         })
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this `match` expression can be replaced with `?`
[INFO] [stdout]    --> day02/src/main.rs:119:24
[INFO] [stdout]     |
[INFO] [stdout] 119 |               let game = match Game::from_str(game) {
[INFO] [stdout]     |  ________________________^
[INFO] [stdout] 120 | |                 Ok(g) => g,
[INFO] [stdout] 121 | |                 Err(e) => return Err(e),
[INFO] [stdout] 122 | |             };
[INFO] [stdout]     | |_____________^ help: try instead: `Game::from_str(game)?`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#question_mark
[INFO] [stdout]     = note: `#[warn(clippy::question_mark)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: matching on `Some` with `ok()` is redundant
[INFO] [stdout]   --> day02/src/main.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 |         if let Some(line) = line.ok() {
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_result_ok
[INFO] [stdout]    = note: `#[warn(clippy::match_result_ok)]` on by default
[INFO] [stdout] help: consider matching on `Ok(line)` and removing the call to `ok` instead
[INFO] [stdout]    |
[INFO] [stdout] 11 -         if let Some(line) = line.ok() {
[INFO] [stdout] 11 +         if let Ok(line) = line {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this `.fold` can be written more succinctly using another method
[INFO] [stdout]   --> day02/src/main.rs:20:18
[INFO] [stdout]    |
[INFO] [stdout] 20 |                 .fold(true, |acc, g| acc && g.is_valid(12, 14, 13))
[INFO] [stdout]    |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `all(|g| g.is_valid(12, 14, 13))`
[INFO] [stdout]    |
[INFO] [stdout]    = note: the `all` method is short circuiting and may change the program semantics if the iterator has side effects
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unnecessary_fold
[INFO] [stdout]    = note: `#[warn(clippy::unnecessary_fold)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: match can be simplified with `.unwrap_or_default()`
[INFO] [stdout]   --> day02/src/main.rs:25:22
[INFO] [stdout]    |
[INFO] [stdout] 25 |               power += match game.power() {
[INFO] [stdout]    |  ______________________^
[INFO] [stdout] 26 | |                 Some(v) => v,
[INFO] [stdout] 27 | |                 None => 0,
[INFO] [stdout] 28 | |             };
[INFO] [stdout]    | |_____________^ help: ascribe the type u32 and replace your expression with: `game.power().unwrap_or_default()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#manual_unwrap_or_default
[INFO] [stdout]    = note: `#[warn(clippy::manual_unwrap_or_default)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: redundant field names in struct initialization
[INFO] [stdout]   --> day03/src/main.rs:89:13
[INFO] [stdout]    |
[INFO] [stdout] 89 |             counter: counter,
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^ help: replace it with: `counter`
[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: unneeded `return` statement
[INFO] [stdout]   --> day02/src/main.rs:97:9
[INFO] [stdout]    |
[INFO] [stdout] 97 |         return true;
[INFO] [stdout]    |         ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stdout]    = note: `#[warn(clippy::needless_return)]` on by default
[INFO] [stdout] help: remove `return`
[INFO] [stdout]    |
[INFO] [stdout] 97 -         return true;
[INFO] [stdout] 97 +         true
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]    --> day02/src/main.rs:127:9
[INFO] [stdout]     |
[INFO] [stdout] 127 | /         return Ok(GameSet {
[INFO] [stdout] 128 | |             id: num,
[INFO] [stdout] 129 | |             games: games,
[INFO] [stdout] 130 | |         });
[INFO] [stdout]     | |__________^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stdout] help: remove `return`
[INFO] [stdout]     |
[INFO] [stdout] 127 ~         Ok(GameSet {
[INFO] [stdout] 128 +             id: num,
[INFO] [stdout] 129 +             games: games,
[INFO] [stdout] 130 ~         })
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this `match` expression can be replaced with `?`
[INFO] [stdout]    --> day02/src/main.rs:119:24
[INFO] [stdout]     |
[INFO] [stdout] 119 |               let game = match Game::from_str(game) {
[INFO] [stdout]     |  ________________________^
[INFO] [stdout] 120 | |                 Ok(g) => g,
[INFO] [stdout] 121 | |                 Err(e) => return Err(e),
[INFO] [stdout] 122 | |             };
[INFO] [stdout]     | |_____________^ help: try instead: `Game::from_str(game)?`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#question_mark
[INFO] [stdout]     = note: `#[warn(clippy::question_mark)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> day05/src/main.rs:98:9
[INFO] [stdout]    |
[INFO] [stdout] 98 |     let mut smallest: Option<(u64, u64)> = None;
[INFO] [stdout]    |         ----^^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: matching on `Some` with `ok()` is redundant
[INFO] [stdout]   --> day03/src/main.rs:13:9
[INFO] [stdout]    |
[INFO] [stdout] 13 |         if let Some(line) = line.ok() {
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_result_ok
[INFO] [stdout]    = note: `#[warn(clippy::match_result_ok)]` on by default
[INFO] [stdout] help: consider matching on `Ok(line)` and removing the call to `ok` instead
[INFO] [stdout]    |
[INFO] [stdout] 13 -         if let Some(line) = line.ok() {
[INFO] [stdout] 13 +         if let Ok(line) = line {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]   --> day03/src/main.rs:84:9
[INFO] [stdout]    |
[INFO] [stdout] 84 | /         return Board {
[INFO] [stdout] 85 | |             last: self.current,
[INFO] [stdout] 86 | |             current: self.next,
[INFO] [stdout] 87 | |             next: Some(block),
[INFO] [stdout] ...  |
[INFO] [stdout] 90 | |             gear_ratio: ratio,
[INFO] [stdout] 91 | |         };
[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] 84 ~         Board {
[INFO] [stdout] 85 +             last: self.current,
[INFO] [stdout] 86 +             current: self.next,
[INFO] [stdout] 87 +             next: Some(block),
[INFO] [stdout] 88 + 
[INFO] [stdout] 89 +             counter: counter,
[INFO] [stdout] 90 +             gear_ratio: ratio,
[INFO] [stdout] 91 ~         }
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of `char::is_digit` with literal radix of 10
[INFO] [stdout]   --> day03/src/main.rs:50:16
[INFO] [stdout]    |
[INFO] [stdout] 50 |             if char.is_digit(10) {
[INFO] [stdout]    |                ^^^^^^^^^^^^^^^^^ help: try: `char.is_ascii_digit()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#is_digit_ascii_radix
[INFO] [stdout]    = note: `#[warn(clippy::is_digit_ascii_radix)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: length comparison to zero
[INFO] [stdout]   --> day03/src/main.rs:52:23
[INFO] [stdout]    |
[INFO] [stdout] 52 |             } else if buf.len() != 0 {
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^ help: using `!is_empty` is clearer and more explicit: `!buf.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: use of `char::is_digit` with literal radix of 10
[INFO] [stdout]   --> day03/src/main.rs:63:17
[INFO] [stdout]    |
[INFO] [stdout] 63 |             if !char.is_digit(10) && char == '*' {
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^ help: try: `char.is_ascii_digit()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#is_digit_ascii_radix
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of `char::is_digit` with literal radix of 10
[INFO] [stdout]   --> day03/src/main.rs:65:24
[INFO] [stdout]    |
[INFO] [stdout] 65 |             } else if !char.is_digit(10) && char != '.' {
[INFO] [stdout]    |                        ^^^^^^^^^^^^^^^^^ help: try: `char.is_ascii_digit()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#is_digit_ascii_radix
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: length comparison to zero
[INFO] [stdout]   --> day03/src/main.rs:69:12
[INFO] [stdout]    |
[INFO] [stdout] 69 |         if buf.len() != 0 {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^ help: using `!is_empty` is clearer and more explicit: `!buf.is_empty()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]    --> day03/src/main.rs:123:9
[INFO] [stdout]     |
[INFO] [stdout] 123 |         return val;
[INFO] [stdout]     |         ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stdout] help: remove `return`
[INFO] [stdout]     |
[INFO] [stdout] 123 -         return val;
[INFO] [stdout] 123 +         val
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]    --> day03/src/main.rs:159:9
[INFO] [stdout]     |
[INFO] [stdout] 159 |         return val;
[INFO] [stdout]     |         ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stdout] help: remove `return`
[INFO] [stdout]     |
[INFO] [stdout] 159 -         return val;
[INFO] [stdout] 159 +         val
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this `.fold` can be written more succinctly using another method
[INFO] [stdout]    --> day03/src/main.rs:155:37
[INFO] [stdout]     |
[INFO] [stdout] 155 |                 val += found.iter().fold(1, |acc, i| acc * i)
[INFO] [stdout]     |                                     ^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `product::<i32>()`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unnecessary_fold
[INFO] [stdout]     = note: `#[warn(clippy::unnecessary_fold)]` 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]    --> day03/src/main.rs:163:36
[INFO] [stdout]     |
[INFO] [stdout] 163 | fn find_adjacent(idx: usize, list: &Vec<Span>) -> Vec<i32> {
[INFO] [stdout]     |                                    ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stdout]     = note: `#[warn(clippy::ptr_arg)]` on by default
[INFO] [stdout] help: change this to
[INFO] [stdout]     |
[INFO] [stdout] 163 - fn find_adjacent(idx: usize, list: &Vec<Span>) -> Vec<i32> {
[INFO] [stdout] 163 + fn find_adjacent(idx: usize, list: &[Span]) -> Vec<i32> {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: matching on `Some` with `ok()` is redundant
[INFO] [stdout]   --> day05/src/main.rs:22:9
[INFO] [stdout]    |
[INFO] [stdout] 22 |         if let Some(line) = line.ok() {
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_result_ok
[INFO] [stdout]    = note: `#[warn(clippy::match_result_ok)]` on by default
[INFO] [stdout] help: consider matching on `Ok(line)` and removing the call to `ok` instead
[INFO] [stdout]    |
[INFO] [stdout] 22 -         if let Some(line) = line.ok() {
[INFO] [stdout] 22 +         if let Ok(line) = line {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: comparison to empty slice
[INFO] [stdout]   --> day05/src/main.rs:23:16
[INFO] [stdout]    |
[INFO] [stdout] 23 |             if line == "" {
[INFO] [stdout]    |                ^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `line.is_empty()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#comparison_to_empty
[INFO] [stdout]    = note: `#[warn(clippy::comparison_to_empty)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]    --> day05/src/main.rs:204:9
[INFO] [stdout]     |
[INFO] [stdout] 204 |         return (num, self.destination);
[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] 204 -         return (num, self.destination);
[INFO] [stdout] 204 +         (num, self.destination)
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Winner` is never used
[INFO] [stdout]   --> day07/src/main.rs:37:6
[INFO] [stdout]    |
[INFO] [stdout] 37 | enum Winner {}
[INFO] [stdout]    |      ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Winner` is never used
[INFO] [stdout]   --> day07/src/main.rs:37:6
[INFO] [stdout]    |
[INFO] [stdout] 37 | enum Winner {}
[INFO] [stdout]    |      ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: matching on `Some` with `ok()` is redundant
[INFO] [stdout]  --> day07/src/main.rs:8:9
[INFO] [stdout]   |
[INFO] [stdout] 8 |         if let Some(line) = line.ok() {
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_result_ok
[INFO] [stdout]   = note: `#[warn(clippy::match_result_ok)]` on by default
[INFO] [stdout] help: consider matching on `Ok(line)` and removing the call to `ok` instead
[INFO] [stdout]   |
[INFO] [stdout] 8 -         if let Some(line) = line.ok() {
[INFO] [stdout] 8 +         if let Ok(line) = line {
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]   --> day07/src/main.rs:20:9
[INFO] [stdout]    |
[INFO] [stdout] 20 |         return a_str.partial_cmp(&b_str).unwrap();
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stdout]    = note: `#[warn(clippy::needless_return)]` on by default
[INFO] [stdout] help: remove `return`
[INFO] [stdout]    |
[INFO] [stdout] 20 -         return a_str.partial_cmp(&b_str).unwrap();
[INFO] [stdout] 20 +         a_str.partial_cmp(&b_str).unwrap()
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: matching on `Some` with `ok()` is redundant
[INFO] [stdout]  --> day07/src/main.rs:8:9
[INFO] [stdout]   |
[INFO] [stdout] 8 |         if let Some(line) = line.ok() {
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_result_ok
[INFO] [stdout]   = note: `#[warn(clippy::match_result_ok)]` on by default
[INFO] [stdout] help: consider matching on `Ok(line)` and removing the call to `ok` instead
[INFO] [stdout]   |
[INFO] [stdout] 8 -         if let Some(line) = line.ok() {
[INFO] [stdout] 8 +         if let Ok(line) = line {
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]   --> day07/src/main.rs:20:9
[INFO] [stdout]    |
[INFO] [stdout] 20 |         return a_str.partial_cmp(&b_str).unwrap();
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stdout]    = note: `#[warn(clippy::needless_return)]` on by default
[INFO] [stdout] help: remove `return`
[INFO] [stdout]    |
[INFO] [stdout] 20 -         return a_str.partial_cmp(&b_str).unwrap();
[INFO] [stdout] 20 +         a_str.partial_cmp(&b_str).unwrap()
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]   --> day07/src/main.rs:63:9
[INFO] [stdout]    |
[INFO] [stdout] 63 |         return Ok(Card(val));
[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] 63 -         return Ok(Card(val));
[INFO] [stdout] 63 +         Ok(Card(val))
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]   --> day07/src/main.rs:63:9
[INFO] [stdout]    |
[INFO] [stdout] 63 |         return Ok(Card(val));
[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] 63 -         return Ok(Card(val));
[INFO] [stdout] 63 +         Ok(Card(val))
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: matching on `Some` with `ok()` is redundant
[INFO] [stdout]   --> day08/src/main.rs:13:9
[INFO] [stdout]    |
[INFO] [stdout] 13 |         if let Some(line) = line.ok() {
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_result_ok
[INFO] [stdout]    = note: `#[warn(clippy::match_result_ok)]` on by default
[INFO] [stdout] help: consider matching on `Ok(line)` and removing the call to `ok` instead
[INFO] [stdout]    |
[INFO] [stdout] 13 -         if let Some(line) = line.ok() {
[INFO] [stdout] 13 +         if let Ok(line) = line {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this boolean expression can be simplified
[INFO] [stdout]   --> day08/src/main.rs:68:25
[INFO] [stdout]    |
[INFO] [stdout] 68 |                         acc && true
[INFO] [stdout]    |                         ^^^^^^^^^^^ help: try: `acc`
[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]    --> day08/src/main.rs:114:9
[INFO] [stdout]     |
[INFO] [stdout] 114 | /         return Ok(Doors {
[INFO] [stdout] 115 | |             label: label.trim().to_owned(),
[INFO] [stdout] 116 | |
[INFO] [stdout] 117 | |             left: l.trim_start_matches(" (").to_owned(),
[INFO] [stdout] 118 | |             right: r.trim_end_matches(")").to_owned(),
[INFO] [stdout] 119 | |         });
[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] 114 ~         Ok(Doors {
[INFO] [stdout] 115 +             label: label.trim().to_owned(),
[INFO] [stdout] 116 + 
[INFO] [stdout] 117 +             left: l.trim_start_matches(" (").to_owned(),
[INFO] [stdout] 118 +             right: r.trim_end_matches(")").to_owned(),
[INFO] [stdout] 119 ~         })
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]    --> day07/src/main.rs:217:9
[INFO] [stdout]     |
[INFO] [stdout] 217 | /         return Strengh::High {
[INFO] [stdout] 218 | |             cards: self.cards.clone(),
[INFO] [stdout] 219 | |         };
[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] 217 ~         Strengh::High {
[INFO] [stdout] 218 +             cards: self.cards.clone(),
[INFO] [stdout] 219 ~         }
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]    --> day07/src/main.rs:124:25
[INFO] [stdout]     |
[INFO] [stdout] 124 |                         return Some((*c, *n));
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stdout] help: remove `return`
[INFO] [stdout]     |
[INFO] [stdout] 124 -                         return Some((*c, *n));
[INFO] [stdout] 124 +                         Some((*c, *n))
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]    --> day07/src/main.rs:126:25
[INFO] [stdout]     |
[INFO] [stdout] 126 |                         return Some((acc_c, acc_n));
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stdout] help: remove `return`
[INFO] [stdout]     |
[INFO] [stdout] 126 -                         return Some((acc_c, acc_n));
[INFO] [stdout] 126 +                         Some((acc_c, acc_n))
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]    --> day07/src/main.rs:128:25
[INFO] [stdout]     |
[INFO] [stdout] 128 |                         return Some((*c, *n));
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stdout] help: remove `return`
[INFO] [stdout]     |
[INFO] [stdout] 128 -                         return Some((*c, *n));
[INFO] [stdout] 128 +                         Some((*c, *n))
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]    --> day07/src/main.rs:130:25
[INFO] [stdout]     |
[INFO] [stdout] 130 |                         return Some((acc_c, acc_n));
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stdout] help: remove `return`
[INFO] [stdout]     |
[INFO] [stdout] 130 -                         return Some((acc_c, acc_n));
[INFO] [stdout] 130 +                         Some((acc_c, acc_n))
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: you seem to be trying to use `match` for an equality check. Consider using `if`
[INFO] [stdout]    --> day07/src/main.rs:207:13
[INFO] [stdout]     |
[INFO] [stdout] 207 | /             match count {
[INFO] [stdout] 208 | |                 2 => {
[INFO] [stdout] 209 | |                     return Strengh::Pair {
[INFO] [stdout] 210 | |                         cards: self.cards.clone(),
[INFO] [stdout] ...   |
[INFO] [stdout] 213 | |                 _ => (),
[INFO] [stdout] 214 | |             };
[INFO] [stdout]     | |_____________^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stdout]     = note: `#[warn(clippy::single_match)]` on by default
[INFO] [stdout] help: try
[INFO] [stdout]     |
[INFO] [stdout] 207 ~             if count == &2 {
[INFO] [stdout] 208 +                 return Strengh::Pair {
[INFO] [stdout] 209 +                     cards: self.cards.clone(),
[INFO] [stdout] 210 +                 }
[INFO] [stdout] 211 ~             };
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: matching on `Some` with `ok()` is redundant
[INFO] [stdout]   --> day08/src/main.rs:13:9
[INFO] [stdout]    |
[INFO] [stdout] 13 |         if let Some(line) = line.ok() {
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_result_ok
[INFO] [stdout]    = note: `#[warn(clippy::match_result_ok)]` on by default
[INFO] [stdout] help: consider matching on `Ok(line)` and removing the call to `ok` instead
[INFO] [stdout]    |
[INFO] [stdout] 13 -         if let Some(line) = line.ok() {
[INFO] [stdout] 13 +         if let Ok(line) = line {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this boolean expression can be simplified
[INFO] [stdout]   --> day08/src/main.rs:68:25
[INFO] [stdout]    |
[INFO] [stdout] 68 |                         acc && true
[INFO] [stdout]    |                         ^^^^^^^^^^^ help: try: `acc`
[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]    --> day07/src/main.rs:217:9
[INFO] [stdout]     |
[INFO] [stdout] 217 | /         return Strengh::High {
[INFO] [stdout] 218 | |             cards: self.cards.clone(),
[INFO] [stdout] 219 | |         };
[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] 217 ~         Strengh::High {
[INFO] [stdout] 218 +             cards: self.cards.clone(),
[INFO] [stdout] 219 ~         }
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]    --> day07/src/main.rs:124:25
[INFO] [stdout]     |
[INFO] [stdout] 124 |                         return Some((*c, *n));
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stdout] help: remove `return`
[INFO] [stdout]     |
[INFO] [stdout] 124 -                         return Some((*c, *n));
[INFO] [stdout] 124 +                         Some((*c, *n))
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]    --> day07/src/main.rs:126:25
[INFO] [stdout]     |
[INFO] [stdout] 126 |                         return Some((acc_c, acc_n));
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stdout] help: remove `return`
[INFO] [stdout]     |
[INFO] [stdout] 126 -                         return Some((acc_c, acc_n));
[INFO] [stdout] 126 +                         Some((acc_c, acc_n))
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]    --> day07/src/main.rs:128:25
[INFO] [stdout]     |
[INFO] [stdout] 128 |                         return Some((*c, *n));
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stdout] help: remove `return`
[INFO] [stdout]     |
[INFO] [stdout] 128 -                         return Some((*c, *n));
[INFO] [stdout] 128 +                         Some((*c, *n))
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]    --> day07/src/main.rs:130:25
[INFO] [stdout]     |
[INFO] [stdout] 130 |                         return Some((acc_c, acc_n));
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stdout] help: remove `return`
[INFO] [stdout]     |
[INFO] [stdout] 130 -                         return Some((acc_c, acc_n));
[INFO] [stdout] 130 +                         Some((acc_c, acc_n))
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]    --> day08/src/main.rs:114:9
[INFO] [stdout]     |
[INFO] [stdout] 114 | /         return Ok(Doors {
[INFO] [stdout] 115 | |             label: label.trim().to_owned(),
[INFO] [stdout] 116 | |
[INFO] [stdout] 117 | |             left: l.trim_start_matches(" (").to_owned(),
[INFO] [stdout] 118 | |             right: r.trim_end_matches(")").to_owned(),
[INFO] [stdout] 119 | |         });
[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] 114 ~         Ok(Doors {
[INFO] [stdout] 115 +             label: label.trim().to_owned(),
[INFO] [stdout] 116 + 
[INFO] [stdout] 117 +             left: l.trim_start_matches(" (").to_owned(),
[INFO] [stdout] 118 +             right: r.trim_end_matches(")").to_owned(),
[INFO] [stdout] 119 ~         })
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: you seem to be trying to use `match` for an equality check. Consider using `if`
[INFO] [stdout]    --> day07/src/main.rs:207:13
[INFO] [stdout]     |
[INFO] [stdout] 207 | /             match count {
[INFO] [stdout] 208 | |                 2 => {
[INFO] [stdout] 209 | |                     return Strengh::Pair {
[INFO] [stdout] 210 | |                         cards: self.cards.clone(),
[INFO] [stdout] ...   |
[INFO] [stdout] 213 | |                 _ => (),
[INFO] [stdout] 214 | |             };
[INFO] [stdout]     | |_____________^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stdout]     = note: `#[warn(clippy::single_match)]` on by default
[INFO] [stdout] help: try
[INFO] [stdout]     |
[INFO] [stdout] 207 ~             if count == &2 {
[INFO] [stdout] 208 +                 return Strengh::Pair {
[INFO] [stdout] 209 +                     cards: self.cards.clone(),
[INFO] [stdout] 210 +                 }
[INFO] [stdout] 211 ~             };
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: matching on `Some` with `ok()` is redundant
[INFO] [stdout]  --> day09/src/main.rs:9:9
[INFO] [stdout]   |
[INFO] [stdout] 9 |         if let Some(line) = line.ok() {
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_result_ok
[INFO] [stdout]   = note: `#[warn(clippy::match_result_ok)]` on by default
[INFO] [stdout] help: consider matching on `Ok(line)` and removing the call to `ok` instead
[INFO] [stdout]   |
[INFO] [stdout] 9 -         if let Some(line) = line.ok() {
[INFO] [stdout] 9 +         if let Ok(line) = line {
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]   --> day09/src/main.rs:38:9
[INFO] [stdout]    |
[INFO] [stdout] 38 |         return Ok(Series { numbers: nums });
[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] 38 -         return Ok(Series { numbers: nums });
[INFO] [stdout] 38 +         Ok(Series { numbers: nums })
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this `.fold` can be written more succinctly using another method
[INFO] [stdout]   --> day09/src/main.rs:44:32
[INFO] [stdout]    |
[INFO] [stdout] 44 |         if self.numbers.iter().fold(true, |acc, n| *n == 0 && acc) {
[INFO] [stdout]    |                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `all(|n| *n == 0)`
[INFO] [stdout]    |
[INFO] [stdout]    = note: the `all` method is short circuiting and may change the program semantics if the iterator has side effects
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unnecessary_fold
[INFO] [stdout]    = note: `#[warn(clippy::unnecessary_fold)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this `.fold` can be written more succinctly using another method
[INFO] [stdout]   --> day09/src/main.rs:52:32
[INFO] [stdout]    |
[INFO] [stdout] 52 |         if self.numbers.iter().fold(true, |acc, n| *n == 0 && acc) {
[INFO] [stdout]    |                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `all(|n| *n == 0)`
[INFO] [stdout]    |
[INFO] [stdout]    = note: the `all` method is short circuiting and may change the program semantics if the iterator has side effects
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unnecessary_fold
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `.iter().next()` on an array
[INFO] [stdout]   --> day09/src/main.rs:55:13
[INFO] [stdout]    |
[INFO] [stdout] 55 |             self.numbers.iter().next().unwrap() - self.deriviative().predict_prev()
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try calling: `self.numbers.first()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#iter_next_slice
[INFO] [stdout]    = note: `#[warn(clippy::iter_next_slice)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]   --> day09/src/main.rs:70:9
[INFO] [stdout]    |
[INFO] [stdout] 70 | /         return Series {
[INFO] [stdout] 71 | |             numbers: derv.collect(),
[INFO] [stdout] 72 | |         };
[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] 70 ~         Series {
[INFO] [stdout] 71 +             numbers: derv.collect(),
[INFO] [stdout] 72 ~         }
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.19s
[INFO] running `Command { std: "docker" "inspect" "1d892a557f2a236bd15c7c3d00561654e4b4fc650c70f5ed4a163b565d62ada4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1d892a557f2a236bd15c7c3d00561654e4b4fc650c70f5ed4a163b565d62ada4", kill_on_drop: false }`
[INFO] [stdout] 1d892a557f2a236bd15c7c3d00561654e4b4fc650c70f5ed4a163b565d62ada4