[INFO] updating cached repository baszalmstra/adventofcode2018
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/baszalmstra/adventofcode2018
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/baszalmstra/adventofcode2018" "work/ex/clippy-test-run/sources/stable/gh/baszalmstra/adventofcode2018"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable/gh/baszalmstra/adventofcode2018'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/baszalmstra/adventofcode2018" "work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/baszalmstra/adventofcode2018"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/baszalmstra/adventofcode2018'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] d4ec38c8b890f135ae75ed0064bd54459843a1bd
[INFO] sha for GitHub repo baszalmstra/adventofcode2018: d4ec38c8b890f135ae75ed0064bd54459843a1bd
[INFO] validating manifest of baszalmstra/adventofcode2018 on toolchain stable
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of baszalmstra/adventofcode2018 on toolchain stable+rustflags=-Dclippy::into_iter_on_array
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing baszalmstra/adventofcode2018
[INFO] finished frobbing baszalmstra/adventofcode2018
[INFO] frobbed toml for baszalmstra/adventofcode2018 written to work/ex/clippy-test-run/sources/stable/gh/baszalmstra/adventofcode2018/Cargo.toml
[INFO] started frobbing baszalmstra/adventofcode2018
[INFO] finished frobbing baszalmstra/adventofcode2018
[INFO] frobbed toml for baszalmstra/adventofcode2018 written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/baszalmstra/adventofcode2018/Cargo.toml
[INFO] crate baszalmstra/adventofcode2018 has a lockfile. skipping
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] linting baszalmstra/adventofcode2018 against stable for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-2/stable:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable/gh/baszalmstra/adventofcode2018:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+stable" "clippy" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 7988a61351faea15aa154a672af90da6dd33988b6b0847db31daa5c01e84c597
[INFO] running `"docker" "start" "-a" "7988a61351faea15aa154a672af90da6dd33988b6b0847db31daa5c01e84c597"`
[INFO] [stderr]     Checking adventofcode2018 v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: this argument is passed by reference, but would be more efficient if passed by value
[INFO] [stderr]   --> src/point.rs:26:29
[INFO] [stderr]    |
[INFO] [stderr] 26 |     pub fn min(self, other: &Point) -> Point {
[INFO] [stderr]    |                             ^^^^^^ help: consider passing by value instead: `Point`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::trivially_copy_pass_by_ref)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#trivially_copy_pass_by_ref
[INFO] [stderr] 
[INFO] [stderr] warning: this argument is passed by reference, but would be more efficient if passed by value
[INFO] [stderr]   --> src/point.rs:33:29
[INFO] [stderr]    |
[INFO] [stderr] 33 |     pub fn max(self, other: &Point) -> Point {
[INFO] [stderr]    |                             ^^^^^^ help: consider passing by value instead: `Point`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#trivially_copy_pass_by_ref
[INFO] [stderr] 
[INFO] [stderr] warning: this argument is passed by reference, but would be more efficient if passed by value
[INFO] [stderr]   --> src/point.rs:26:29
[INFO] [stderr]    |
[INFO] [stderr] 26 |     pub fn min(self, other: &Point) -> Point {
[INFO] [stderr]    |                             ^^^^^^ help: consider passing by value instead: `Point`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::trivially_copy_pass_by_ref)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#trivially_copy_pass_by_ref
[INFO] [stderr] 
[INFO] [stderr] warning: this argument is passed by reference, but would be more efficient if passed by value
[INFO] [stderr]   --> src/point.rs:33:29
[INFO] [stderr]    |
[INFO] [stderr] 33 |     pub fn max(self, other: &Point) -> Point {
[INFO] [stderr]    |                             ^^^^^^ help: consider passing by value instead: `Point`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#trivially_copy_pass_by_ref
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]    --> src/bin/day12.rs:178:33
[INFO] [stderr]     |
[INFO] [stderr] 178 |         offset: state.offset + (50000000000 - 2000),
[INFO] [stderr]     |                                 ^^^^^^^^^^^ help: consider: `50_000_000_000`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::unreadable_literal)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: You are using an explicit closure for cloning elements
[INFO] [stderr]  --> src/bin/day5.rs:2:30
[INFO] [stderr]   |
[INFO] [stderr] 2 |     let mut value: Vec<u8> = polymer.map(|a| *a).collect();
[INFO] [stderr]   |                              ^^^^^^^^^^^^^^^^^^^ help: Consider calling the dedicated `cloned` method: `polymer.cloned()`
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(clippy::map_clone)] on by default
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#map_clone
[INFO] [stderr] 
[INFO] [stderr] warning: this `.fold` can be written more succinctly using another method
[INFO] [stderr]   --> src/bin/day1.rs:11:30
[INFO] [stderr]    |
[INFO] [stderr] 11 |     let result = input.iter().fold(0, |a, b| a + b);
[INFO] [stderr]    |                              ^^^^^^^^^^^^^^^^^^^^^^ help: try: `.sum()`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::unnecessary_fold)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unnecessary_fold
[INFO] [stderr] 
[INFO] [stderr] warning: redundant pattern matching, consider using `is_some()`
[INFO] [stderr]   --> src/bin/day1.rs:21:16
[INFO] [stderr]    |
[INFO] [stderr] 21 |           if let Some(_) = values_seen.get(&current_frequency) {
[INFO] [stderr]    |  _________-      ^^^^^^^
[INFO] [stderr] 22 | |             println!("First double frequency: {}", current_frequency);
[INFO] [stderr] 23 | |             return;
[INFO] [stderr] 24 | |         }
[INFO] [stderr]    | |_________- help: try this: `if values_seen.get(&current_frequency).is_some()`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::redundant_pattern_matching)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_pattern_matching
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]   --> src/bin/day12.rs:68:30
[INFO] [stderr]    |
[INFO] [stderr] 68 |     fn iterate(&self, rules: &Vec<Rule>) -> State {
[INFO] [stderr]    |                              ^^^^^^^^^^ help: change this to: `&[Rule]`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::ptr_arg)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr] warning: the operation is ineffective. Consider reducing it to `i`
[INFO] [stderr]   --> src/bin/day12.rs:87:39
[INFO] [stderr]    |
[INFO] [stderr] 87 |                     && previous_state[i - 0] == rule.pattern[2]
[INFO] [stderr]    |                                       ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::identity_op)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#identity_op
[INFO] [stderr] 
[INFO] [stderr] warning: using `clone` on a `Copy` type
[INFO] [stderr]   --> src/bin/day12.rs:91:32
[INFO] [stderr]    |
[INFO] [stderr] 91 |                     state[i] = rule.result.clone();
[INFO] [stderr]    |                                ^^^^^^^^^^^^^^^^^^^ help: try removing the `clone` call: `rule.result`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::clone_on_copy)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_on_copy
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to i32 may become silently lossy if types change
[INFO] [stderr]   --> src/bin/day16.rs:58:81
[INFO] [stderr]    |
[INFO] [stderr] 58 |             Opcode::Addi => result[args.2 as usize] = result[args.0 as usize] + args.1 as i32,
[INFO] [stderr]    |                                                                                 ^^^^^^^^^^^^^ help: try: `i32::from(args.1)`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::cast_lossless)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to i32 may become silently lossy if types change
[INFO] [stderr]   --> src/bin/day16.rs:62:81
[INFO] [stderr]    |
[INFO] [stderr] 62 |             Opcode::Muli => result[args.2 as usize] = result[args.0 as usize] * args.1 as i32,
[INFO] [stderr]    |                                                                                 ^^^^^^^^^^^^^ help: try: `i32::from(args.1)`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to i32 may become silently lossy if types change
[INFO] [stderr]   --> src/bin/day16.rs:66:81
[INFO] [stderr]    |
[INFO] [stderr] 66 |             Opcode::Bani => result[args.2 as usize] = result[args.0 as usize] & args.1 as i32,
[INFO] [stderr]    |                                                                                 ^^^^^^^^^^^^^ help: try: `i32::from(args.1)`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to i32 may become silently lossy if types change
[INFO] [stderr]   --> src/bin/day16.rs:70:81
[INFO] [stderr]    |
[INFO] [stderr] 70 |             Opcode::Bori => result[args.2 as usize] = result[args.0 as usize] | args.1 as i32,
[INFO] [stderr]    |                                                                                 ^^^^^^^^^^^^^ help: try: `i32::from(args.1)`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to i32 may become silently lossy if types change
[INFO] [stderr]   --> src/bin/day16.rs:72:55
[INFO] [stderr]    |
[INFO] [stderr] 72 |             Opcode::Seti => result[args.2 as usize] = args.0 as i32,
[INFO] [stderr]    |                                                       ^^^^^^^^^^^^^ help: try: `i32::from(args.0)`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to i32 may become silently lossy if types change
[INFO] [stderr]   --> src/bin/day16.rs:74:46
[INFO] [stderr]    |
[INFO] [stderr] 74 |                 result[args.2 as usize] = if args.0 as i32 > result[args.1 as usize] {
[INFO] [stderr]    |                                              ^^^^^^^^^^^^^ help: try: `i32::from(args.0)`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to i32 may become silently lossy if types change
[INFO] [stderr]   --> src/bin/day16.rs:81:72
[INFO] [stderr]    |
[INFO] [stderr] 81 |                 result[args.2 as usize] = if result[args.0 as usize] > args.1 as i32 {
[INFO] [stderr]    |                                                                        ^^^^^^^^^^^^^ help: try: `i32::from(args.1)`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to i32 may become silently lossy if types change
[INFO] [stderr]   --> src/bin/day16.rs:95:46
[INFO] [stderr]    |
[INFO] [stderr] 95 |                 result[args.2 as usize] = if args.0 as i32 == result[args.1 as usize] {
[INFO] [stderr]    |                                              ^^^^^^^^^^^^^ help: try: `i32::from(args.0)`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to i32 may become silently lossy if types change
[INFO] [stderr]    --> src/bin/day16.rs:102:73
[INFO] [stderr]     |
[INFO] [stderr] 102 |                 result[args.2 as usize] = if result[args.0 as usize] == args.1 as i32 {
[INFO] [stderr]     |                                                                         ^^^^^^^^^^^^^ help: try: `i32::from(args.1)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: You are using an explicit closure for cloning elements
[INFO] [stderr]    --> src/bin/day16.rs:138:9
[INFO] [stderr]     |
[INFO] [stderr] 138 |         VALUES.iter().map(|c| *c)
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^ help: Consider calling the dedicated `cloned` method: `VALUES.iter().cloned()`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::map_clone)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#map_clone
[INFO] [stderr] 
[INFO] [stderr] warning: the loop variable `j` is only used to index `opcode_possibilities`.
[INFO] [stderr]    --> src/bin/day16.rs:228:26
[INFO] [stderr]     |
[INFO] [stderr] 228 |                 for j in 0..16 {
[INFO] [stderr]     |                          ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::needless_range_loop)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_range_loop
[INFO] [stderr] help: consider using an iterator
[INFO] [stderr]     |
[INFO] [stderr] 228 |                 for <item> in &mut opcode_possibilities {
[INFO] [stderr]     |                     ^^^^^^    ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: an inclusive range would be more readable
[INFO] [stderr]    --> src/bin/day6.rs:101:14
[INFO] [stderr]     |
[INFO] [stderr] 101 |     for y in min.y..max.y + 1 {
[INFO] [stderr]     |              ^^^^^^^^^^^^^^^^ help: use: `min.y..=max.y`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::range_plus_one)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#range_plus_one
[INFO] [stderr] 
[INFO] [stderr] warning: an inclusive range would be more readable
[INFO] [stderr]    --> src/bin/day6.rs:102:18
[INFO] [stderr]     |
[INFO] [stderr] 102 |         for x in min.x..max.x + 1 {
[INFO] [stderr]     |                  ^^^^^^^^^^^^^^^^ help: use: `min.x..=max.x`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#range_plus_one
[INFO] [stderr] 
[INFO] [stderr] warning: casting i32 to i64 may become silently lossy if types change
[INFO] [stderr]    --> src/bin/day6.rs:106:22
[INFO] [stderr]     |
[INFO] [stderr] 106 |                     (x as i64 - point.x as i64).abs() + (y as i64 - point.y as i64).abs();
[INFO] [stderr]     |                      ^^^^^^^^ help: try: `i64::from(x)`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::cast_lossless)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting i32 to i64 may become silently lossy if types change
[INFO] [stderr]    --> src/bin/day6.rs:106:33
[INFO] [stderr]     |
[INFO] [stderr] 106 |                     (x as i64 - point.x as i64).abs() + (y as i64 - point.y as i64).abs();
[INFO] [stderr]     |                                 ^^^^^^^^^^^^^^ help: try: `i64::from(point.x)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting i32 to i64 may become silently lossy if types change
[INFO] [stderr]    --> src/bin/day6.rs:106:58
[INFO] [stderr]     |
[INFO] [stderr] 106 |                     (x as i64 - point.x as i64).abs() + (y as i64 - point.y as i64).abs();
[INFO] [stderr]     |                                                          ^^^^^^^^ help: try: `i64::from(y)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting i32 to i64 may become silently lossy if types change
[INFO] [stderr]    --> src/bin/day6.rs:106:69
[INFO] [stderr]     |
[INFO] [stderr] 106 |                     (x as i64 - point.x as i64).abs() + (y as i64 - point.y as i64).abs();
[INFO] [stderr]     |                                                                     ^^^^^^^^^^^^^^ help: try: `i64::from(point.y)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]   --> src/bin/day4.rs:19:34
[INFO] [stderr]    |
[INFO] [stderr] 19 | fn build_sleep_histogram(ranges: &Vec<Range<u32>>) -> [u32; 60] {
[INFO] [stderr]    |                                  ^^^^^^^^^^^^^^^^ help: change this to: `&[Range<u32>]`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::ptr_arg)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr] warning: use of `or_insert` followed by a function call
[INFO] [stderr]   --> src/bin/day4.rs:83:30
[INFO] [stderr]    |
[INFO] [stderr] 83 |                             .or_insert(vec![time..event.0.time().minute()]);
[INFO] [stderr]    |                              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `or_insert_with(|| vec![time..event.0.time().minute()])`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::or_fun_call)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#or_fun_call
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]    --> src/bin/day12.rs:178:33
[INFO] [stderr]     |
[INFO] [stderr] 178 |         offset: state.offset + (50000000000 - 2000),
[INFO] [stderr]     |                                 ^^^^^^^^^^^ help: consider: `50_000_000_000`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::unreadable_literal)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]   --> src/bin/day14.rs:37:17
[INFO] [stderr]    |
[INFO] [stderr] 37 |     let input = 110201;
[INFO] [stderr]    |                 ^^^^^^ help: consider: `110_201`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::unreadable_literal)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]   --> src/bin/day12.rs:68:30
[INFO] [stderr]    |
[INFO] [stderr] 68 |     fn iterate(&self, rules: &Vec<Rule>) -> State {
[INFO] [stderr]    |                              ^^^^^^^^^^ help: change this to: `&[Rule]`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::ptr_arg)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr] warning: the operation is ineffective. Consider reducing it to `i`
[INFO] [stderr]   --> src/bin/day12.rs:87:39
[INFO] [stderr]    |
[INFO] [stderr] 87 |                     && previous_state[i - 0] == rule.pattern[2]
[INFO] [stderr]    |                                       ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::identity_op)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#identity_op
[INFO] [stderr] 
[INFO] [stderr] warning: using `clone` on a `Copy` type
[INFO] [stderr]   --> src/bin/day12.rs:91:32
[INFO] [stderr]    |
[INFO] [stderr] 91 |                     state[i] = rule.result.clone();
[INFO] [stderr]    |                                ^^^^^^^^^^^^^^^^^^^ help: try removing the `clone` call: `rule.result`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::clone_on_copy)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_on_copy
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]   --> src/bin/day11.rs:23:23
[INFO] [stderr]    |
[INFO] [stderr] 23 |     power_level_grid: &Vec<i32>,
[INFO] [stderr]    |                       ^^^^^^^^^ help: change this to: `&[i32]`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::ptr_arg)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr] warning: manual implementation of an assign operation
[INFO] [stderr]   --> src/bin/day11.rs:80:9
[INFO] [stderr]    |
[INFO] [stderr] 80 |         block_size = block_size + 1;
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `block_size += 1`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::assign_op_pattern)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]   --> src/bin/day14.rs:20:51
[INFO] [stderr]    |
[INFO] [stderr] 20 | fn compare_end(scores: &VecDeque<usize>, request: &Vec<usize>) -> bool {
[INFO] [stderr]    |                                                   ^^^^^^^^^^^ help: change this to: `&[usize]`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::ptr_arg)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr] warning: the loop variable `i` is only used to index `scoreboard`.
[INFO] [stderr]   --> src/bin/day14.rs:63:26
[INFO] [stderr]    |
[INFO] [stderr] 63 |                 for i in begin..end {
[INFO] [stderr]    |                          ^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::needless_range_loop)] on by default
[INFO] [stderr] warning: this if statement can be collapsed
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_range_loop
[INFO] [stderr]    --> src/bin/day13.rs:158:17
[INFO] [stderr]     |
[INFO] [stderr] 158 | /                 if i != j {
[INFO] [stderr] 159 | |                     if carts[i].position == carts[j].position {
[INFO] [stderr] 160 | |                         println!(
[INFO] [stderr] 161 | |                             "Found collision at {},{} iteration: {}",
[INFO] [stderr] ...   |
[INFO] [stderr] 165 | |                     }
[INFO] [stderr] 166 | |                 }
[INFO] [stderr]     | |_________________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::collapsible_if)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#collapsible_if
[INFO] [stderr] help: try
[INFO] [stderr]     |
[INFO] [stderr] 158 |                 if i != j && carts[i].position == carts[j].position {
[INFO] [stderr] 159 |     println!(
[INFO] [stderr] 160 |         "Found collision at {},{} iteration: {}",
[INFO] [stderr] 161 |         carts[i].position.0, carts[i].position.1, iteration
[INFO] [stderr] 162 |     );
[INFO] [stderr] 163 |     colliding_carts = Some((i, j));
[INFO] [stderr]   ...
[INFO] [stderr] 
[INFO] [stderr] help: consider using an iterator
[INFO] [stderr]    |
[INFO] [stderr] 63 |                 for <item> in scoreboard.iter().take(end).skip(begin) {
[INFO] [stderr]    |                     ^^^^^^    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: You are using an explicit closure for cloning elements
[INFO] [stderr]    --> src/bin/day15.rs:102:61
[INFO] [stderr]     |
[INFO] [stderr] 102 |         let targets: HashSet<Position> = HashSet::from_iter(to.map(|p| *p));
[INFO] [stderr]     |                                                             ^^^^^^^^^^^^^^ help: Consider calling the dedicated `cloned` method: `to.cloned()`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::map_clone)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#map_clone
[INFO] [stderr] 
[INFO] [stderr] warning: You are using an explicit closure for cloning elements
[INFO] [stderr]    --> src/bin/day15.rs:102:61
[INFO] [stderr]     |
[INFO] [stderr] 102 |         let targets: HashSet<Position> = HashSet::from_iter(to.map(|p| *p));
[INFO] [stderr]     |                                                             ^^^^^^^^^^^^^^ help: Consider calling the dedicated `cloned` method: `to.cloned()`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::map_clone)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#map_clone
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]   --> src/bin/day11.rs:23:23
[INFO] [stderr]    |
[INFO] [stderr] 23 |     power_level_grid: &Vec<i32>,
[INFO] [stderr]    |                       ^^^^^^^^^ help: change this to: `&[i32]`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::ptr_arg)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr] warning: manual implementation of an assign operation
[INFO] [stderr]   --> src/bin/day11.rs:80:9
[INFO] [stderr]    |
[INFO] [stderr] 80 |         block_size = block_size + 1;
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `block_size += 1`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::assign_op_pattern)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]   --> src/bin/day9.rs:84:50
[INFO] [stderr]    |
[INFO] [stderr] 84 |         assert_eq!(find_highest_score(13, 7999), 146373);
[INFO] [stderr]    |                                                  ^^^^^^ help: consider: `146_373`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::unreadable_literal)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: slow zero-filling initialization
[INFO] [stderr]   --> src/bin/day9.rs:42:5
[INFO] [stderr]    |
[INFO] [stderr] 41 |     let mut player_scores = Vec::with_capacity(player_count);
[INFO] [stderr]    |                             -------------------------------- help: consider replace allocation with: `vec![0; player_count]`
[INFO] [stderr] 42 |     player_scores.resize(player_count, 0);
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::slow_vector_initialization)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#slow_vector_initialization
[INFO] [stderr] 
[INFO] [stderr] warning: this if statement can be collapsed
[INFO] [stderr]    --> src/bin/day13.rs:158:17
[INFO] [stderr]     |
[INFO] [stderr] 158 | /                 if i != j {
[INFO] [stderr] 159 | |                     if carts[i].position == carts[j].position {
[INFO] [stderr] 160 | |                         println!(
[INFO] [stderr] 161 | |                             "Found collision at {},{} iteration: {}",
[INFO] [stderr] ...   |
[INFO] [stderr] 165 | |                     }
[INFO] [stderr] 166 | |                 }
[INFO] [stderr]     | |_________________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::collapsible_if)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#collapsible_if
[INFO] [stderr] help: try
[INFO] [stderr]     |
[INFO] [stderr] 158 |                 if i != j && carts[i].position == carts[j].position {
[INFO] [stderr] 159 |     println!(
[INFO] [stderr] 160 |         "Found collision at {},{} iteration: {}",
[INFO] [stderr] 161 |         carts[i].position.0, carts[i].position.1, iteration
[INFO] [stderr] 162 |     );
[INFO] [stderr] 163 |     colliding_carts = Some((i, j));
[INFO] [stderr]   ...
[INFO] [stderr] 
[INFO] [stderr] warning: You are using an explicit closure for cloning elements
[INFO] [stderr]  --> src/bin/day5.rs:2:30
[INFO] [stderr]   |
[INFO] [stderr] 2 |     let mut value: Vec<u8> = polymer.map(|a| *a).collect();
[INFO] [stderr]   |                              ^^^^^^^^^^^^^^^^^^^ help: Consider calling the dedicated `cloned` method: `polymer.cloned()`
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(clippy::map_clone)] on by default
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#map_clone
[INFO] [stderr] 
[INFO] [stderr] warning: slow zero-filling initialization
[INFO] [stderr]   --> src/bin/day9.rs:42:5
[INFO] [stderr]    |
[INFO] [stderr] 41 |     let mut player_scores = Vec::with_capacity(player_count);
[INFO] [stderr]    |                             -------------------------------- help: consider replace allocation with: `vec![0; player_count]`
[INFO] [stderr] 42 |     player_scores.resize(player_count, 0);
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::slow_vector_initialization)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#slow_vector_initialization
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]   --> src/bin/day14.rs:37:17
[INFO] [stderr]    |
[INFO] [stderr] 37 |     let input = 110201;
[INFO] [stderr]    |                 ^^^^^^ help: consider: `110_201`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::unreadable_literal)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: an inclusive range would be more readable
[INFO] [stderr]    --> src/bin/day6.rs:101:14
[INFO] [stderr]     |
[INFO] [stderr] 101 |     for y in min.y..max.y + 1 {
[INFO] [stderr]     |              ^^^^^^^^^^^^^^^^ help: use: `min.y..=max.y`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::range_plus_one)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#range_plus_one
[INFO] [stderr] 
[INFO] [stderr] warning: an inclusive range would be more readable
[INFO] [stderr]    --> src/bin/day6.rs:102:18
[INFO] [stderr]     |
[INFO] [stderr] 102 |         for x in min.x..max.x + 1 {
[INFO] [stderr]     |                  ^^^^^^^^^^^^^^^^ help: use: `min.x..=max.x`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#range_plus_one
[INFO] [stderr] 
[INFO] [stderr] warning: casting i32 to i64 may become silently lossy if types change
[INFO] [stderr]    --> src/bin/day6.rs:106:22
[INFO] [stderr]     |
[INFO] [stderr] 106 |                     (x as i64 - point.x as i64).abs() + (y as i64 - point.y as i64).abs();
[INFO] [stderr]     |                      ^^^^^^^^ help: try: `i64::from(x)`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::cast_lossless)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting i32 to i64 may become silently lossy if types change
[INFO] [stderr]    --> src/bin/day6.rs:106:33
[INFO] [stderr]     |
[INFO] [stderr] 106 |                     (x as i64 - point.x as i64).abs() + (y as i64 - point.y as i64).abs();
[INFO] [stderr]     |                                 ^^^^^^^^^^^^^^ help: try: `i64::from(point.x)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting i32 to i64 may become silently lossy if types change
[INFO] [stderr]    --> src/bin/day6.rs:106:58
[INFO] [stderr]     |
[INFO] [stderr] 106 |                     (x as i64 - point.x as i64).abs() + (y as i64 - point.y as i64).abs();
[INFO] [stderr]     |                                                          ^^^^^^^^ help: try: `i64::from(y)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting i32 to i64 may become silently lossy if types change
[INFO] [stderr]    --> src/bin/day6.rs:106:69
[INFO] [stderr]     |
[INFO] [stderr] 106 |                     (x as i64 - point.x as i64).abs() + (y as i64 - point.y as i64).abs();
[INFO] [stderr]     |                                                                     ^^^^^^^^^^^^^^ help: try: `i64::from(point.y)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]   --> src/bin/day14.rs:20:51
[INFO] [stderr]    |
[INFO] [stderr] 20 | fn compare_end(scores: &VecDeque<usize>, request: &Vec<usize>) -> bool {
[INFO] [stderr]    |                                                   ^^^^^^^^^^^ help: change this to: `&[usize]`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::ptr_arg)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr] warning: the loop variable `i` is only used to index `scoreboard`.
[INFO] [stderr]   --> src/bin/day14.rs:63:26
[INFO] [stderr]    |
[INFO] [stderr] 63 |                 for i in begin..end {
[INFO] [stderr]    |                          ^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::needless_range_loop)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_range_loop
[INFO] [stderr] help: consider using an iterator
[INFO] [stderr]    |
[INFO] [stderr] 63 |                 for <item> in scoreboard.iter().take(end).skip(begin) {
[INFO] [stderr]    |                     ^^^^^^    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: this `.fold` can be written more succinctly using another method
[INFO] [stderr]   --> src/bin/day1.rs:11:30
[INFO] [stderr]    |
[INFO] [stderr] 11 |     let result = input.iter().fold(0, |a, b| a + b);
[INFO] [stderr]    |                              ^^^^^^^^^^^^^^^^^^^^^^ help: try: `.sum()`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::unnecessary_fold)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unnecessary_fold
[INFO] [stderr] 
[INFO] [stderr] warning: redundant pattern matching, consider using `is_some()`
[INFO] [stderr]   --> src/bin/day1.rs:21:16
[INFO] [stderr]    |
[INFO] [stderr] 21 |           if let Some(_) = values_seen.get(&current_frequency) {
[INFO] [stderr]    |  _________-      ^^^^^^^
[INFO] [stderr] 22 | |             println!("First double frequency: {}", current_frequency);
[INFO] [stderr] 23 | |             return;
[INFO] [stderr] 24 | |         }
[INFO] [stderr]    | |_________- help: try this: `if values_seen.get(&current_frequency).is_some()`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::redundant_pattern_matching)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_pattern_matching
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to i32 may become silently lossy if types change
[INFO] [stderr]   --> src/bin/day16.rs:58:81
[INFO] [stderr]    |
[INFO] [stderr] 58 |             Opcode::Addi => result[args.2 as usize] = result[args.0 as usize] + args.1 as i32,
[INFO] [stderr]    |                                                                                 ^^^^^^^^^^^^^ help: try: `i32::from(args.1)`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::cast_lossless)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to i32 may become silently lossy if types change
[INFO] [stderr]   --> src/bin/day16.rs:62:81
[INFO] [stderr]    |
[INFO] [stderr] 62 |             Opcode::Muli => result[args.2 as usize] = result[args.0 as usize] * args.1 as i32,
[INFO] [stderr]    |                                                                                 ^^^^^^^^^^^^^ help: try: `i32::from(args.1)`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to i32 may become silently lossy if types change
[INFO] [stderr]   --> src/bin/day16.rs:66:81
[INFO] [stderr]    |
[INFO] [stderr] 66 |             Opcode::Bani => result[args.2 as usize] = result[args.0 as usize] & args.1 as i32,
[INFO] [stderr]    |                                                                                 ^^^^^^^^^^^^^ help: try: `i32::from(args.1)`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to i32 may become silently lossy if types change
[INFO] [stderr]   --> src/bin/day16.rs:70:81
[INFO] [stderr]    |
[INFO] [stderr] 70 |             Opcode::Bori => result[args.2 as usize] = result[args.0 as usize] | args.1 as i32,
[INFO] [stderr]    |                                                                                 ^^^^^^^^^^^^^ help: try: `i32::from(args.1)`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to i32 may become silently lossy if types change
[INFO] [stderr]   --> src/bin/day16.rs:72:55
[INFO] [stderr]    |
[INFO] [stderr] 72 |             Opcode::Seti => result[args.2 as usize] = args.0 as i32,
[INFO] [stderr]    |                                                       ^^^^^^^^^^^^^ help: try: `i32::from(args.0)`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to i32 may become silently lossy if types change
[INFO] [stderr]   --> src/bin/day16.rs:74:46
[INFO] [stderr]    |
[INFO] [stderr] 74 |                 result[args.2 as usize] = if args.0 as i32 > result[args.1 as usize] {
[INFO] [stderr]    |                                              ^^^^^^^^^^^^^ help: try: `i32::from(args.0)`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to i32 may become silently lossy if types change
[INFO] [stderr]   --> src/bin/day16.rs:81:72
[INFO] [stderr]    |
[INFO] [stderr] 81 |                 result[args.2 as usize] = if result[args.0 as usize] > args.1 as i32 {
[INFO] [stderr]    |                                                                        ^^^^^^^^^^^^^ help: try: `i32::from(args.1)`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to i32 may become silently lossy if types change
[INFO] [stderr]   --> src/bin/day16.rs:95:46
[INFO] [stderr]    |
[INFO] [stderr] 95 |                 result[args.2 as usize] = if args.0 as i32 == result[args.1 as usize] {
[INFO] [stderr]    |                                              ^^^^^^^^^^^^^ help: try: `i32::from(args.0)`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to i32 may become silently lossy if types change
[INFO] [stderr]    --> src/bin/day16.rs:102:73
[INFO] [stderr]     |
[INFO] [stderr] 102 |                 result[args.2 as usize] = if result[args.0 as usize] == args.1 as i32 {
[INFO] [stderr]     |                                                                         ^^^^^^^^^^^^^ help: try: `i32::from(args.1)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: You are using an explicit closure for cloning elements
[INFO] [stderr]    --> src/bin/day16.rs:138:9
[INFO] [stderr]     |
[INFO] [stderr] 138 |         VALUES.iter().map(|c| *c)
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^ help: Consider calling the dedicated `cloned` method: `VALUES.iter().cloned()`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::map_clone)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#map_clone
[INFO] [stderr] 
[INFO] [stderr] warning: the loop variable `j` is only used to index `opcode_possibilities`.
[INFO] [stderr]    --> src/bin/day16.rs:228:26
[INFO] [stderr]     |
[INFO] [stderr] 228 |                 for j in 0..16 {
[INFO] [stderr]     |                          ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::needless_range_loop)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_range_loop
[INFO] [stderr] help: consider using an iterator
[INFO] [stderr]     |
[INFO] [stderr] 228 |                 for <item> in &mut opcode_possibilities {
[INFO] [stderr]     |                     ^^^^^^    ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]   --> src/bin/day4.rs:19:34
[INFO] [stderr]    |
[INFO] [stderr] 19 | fn build_sleep_histogram(ranges: &Vec<Range<u32>>) -> [u32; 60] {
[INFO] [stderr]    |                                  ^^^^^^^^^^^^^^^^ help: change this to: `&[Range<u32>]`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::ptr_arg)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr] warning: use of `or_insert` followed by a function call
[INFO] [stderr]   --> src/bin/day4.rs:83:30
[INFO] [stderr]    |
[INFO] [stderr] 83 |                             .or_insert(vec![time..event.0.time().minute()]);
[INFO] [stderr]    |                              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `or_insert_with(|| vec![time..event.0.time().minute()])`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::or_fun_call)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#or_fun_call
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 13.65s
[INFO] running `"docker" "inspect" "7988a61351faea15aa154a672af90da6dd33988b6b0847db31daa5c01e84c597"`
[INFO] running `"docker" "rm" "-f" "7988a61351faea15aa154a672af90da6dd33988b6b0847db31daa5c01e84c597"`
[INFO] [stdout] 7988a61351faea15aa154a672af90da6dd33988b6b0847db31daa5c01e84c597