[INFO] cloning repository https://github.com/danpaz/adventofcode2021
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/danpaz/adventofcode2021" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdanpaz%2Fadventofcode2021", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdanpaz%2Fadventofcode2021'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b9873a51ba779f61eb22252380409efbdf700610
[INFO] linting danpaz/adventofcode2021 against nightly for clippy-nonminimal_bool-denied
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdanpaz%2Fadventofcode2021" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/danpaz/adventofcode2021
[INFO] finished tweaking git repo https://github.com/danpaz/adventofcode2021
[INFO] tweaked toml for git repo https://github.com/danpaz/adventofcode2021 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/danpaz/adventofcode2021 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/danpaz/adventofcode2021 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+nightly" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+nightly" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 91ec7ceb16829fb84d582d6680e98e0c094a1eb0922a7c83ab506673281b3ecb
[INFO] running `Command { std: "docker" "start" "-a" "91ec7ceb16829fb84d582d6680e98e0c094a1eb0922a7c83ab506673281b3ecb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "91ec7ceb16829fb84d582d6680e98e0c094a1eb0922a7c83ab506673281b3ecb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "91ec7ceb16829fb84d582d6680e98e0c094a1eb0922a7c83ab506673281b3ecb", kill_on_drop: false }`
[INFO] [stdout] 91ec7ceb16829fb84d582d6680e98e0c094a1eb0922a7c83ab506673281b3ecb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+nightly" "clippy" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c39398c414fc384bae8621fc4e5aec86365ceab757b2d9a8b3ed34e9973f1371
[INFO] running `Command { std: "docker" "start" "-a" "c39398c414fc384bae8621fc4e5aec86365ceab757b2d9a8b3ed34e9973f1371", kill_on_drop: false }`
[INFO] [stderr]     Checking adventofcode2021 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around index expression
[INFO] [stdout]   --> src/day1.rs:39:32
[INFO] [stdout]    |
[INFO] [stdout] 39 |             windowsum += input[(j as usize)];
[INFO] [stdout]    |                                ^          ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 39 -             windowsum += input[(j as usize)];
[INFO] [stdout] 39 +             windowsum += input[j as usize ];
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: redundant field names in struct initialization
[INFO] [stdout]    --> src/day12.rs:130:9
[INFO] [stdout]     |
[INFO] [stdout] 130 |         visited_small: visited_small,
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `visited_small`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stdout]     = note: `#[warn(clippy::redundant_field_names)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: redundant field names in struct initialization
[INFO] [stdout]    --> src/day12.rs:157:9
[INFO] [stdout]     |
[INFO] [stdout] 157 |         visited_small: visited_small,
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `visited_small`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: redundant field names in struct initialization
[INFO] [stdout]   --> src/day9.rs:18:11
[INFO] [stdout]    |
[INFO] [stdout] 18 |     Map { cells: cells }
[INFO] [stdout]    |           ^^^^^^^^^^^^ help: replace it with: `cells`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around index expression
[INFO] [stdout]   --> src/day1.rs:39:32
[INFO] [stdout]    |
[INFO] [stdout] 39 |             windowsum += input[(j as usize)];
[INFO] [stdout]    |                                ^          ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 39 -             windowsum += input[(j as usize)];
[INFO] [stdout] 39 +             windowsum += input[j as usize ];
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: redundant field names in struct initialization
[INFO] [stdout]    --> src/day12.rs:130:9
[INFO] [stdout]     |
[INFO] [stdout] 130 |         visited_small: visited_small,
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `visited_small`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stdout]     = note: `#[warn(clippy::redundant_field_names)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: redundant field names in struct initialization
[INFO] [stdout]    --> src/day12.rs:157:9
[INFO] [stdout]     |
[INFO] [stdout] 157 |         visited_small: visited_small,
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `visited_small`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: redundant field names in struct initialization
[INFO] [stdout]   --> src/day9.rs:18:11
[INFO] [stdout]    |
[INFO] [stdout] 18 |     Map { cells: cells }
[INFO] [stdout]    |           ^^^^^^^^^^^^ help: replace it with: `cells`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/day11.rs:67:17
[INFO] [stdout]    |
[INFO] [stdout] 67 |             let mut o = &mut map[r][c];
[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: variable does not need to be mutable
[INFO] [stdout]   --> src/day11.rs:67:17
[INFO] [stdout]    |
[INFO] [stdout] 67 |             let mut o = &mut map[r][c];
[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: usage of a legacy numeric constant
[INFO] [stdout]  --> src/day1.rs:9:20
[INFO] [stdout]   |
[INFO] [stdout] 9 |     let mut prev = std::u32::MAX;
[INFO] [stdout]   |                    ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#legacy_numeric_constants
[INFO] [stdout]   = note: `#[warn(clippy::legacy_numeric_constants)]` on by default
[INFO] [stdout] help: use the associated constant instead
[INFO] [stdout]   |
[INFO] [stdout] 9 -     let mut prev = std::u32::MAX;
[INFO] [stdout] 9 +     let mut prev = u32::MAX;
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: casting to the same type is unnecessary (`usize` -> `usize`)
[INFO] [stdout]   --> src/day1.rs:34:13
[INFO] [stdout]    |
[INFO] [stdout] 34 |         if (i as usize + window_size) > input_len {
[INFO] [stdout]    |             ^^^^^^^^^^ help: try: `i`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unnecessary_cast
[INFO] [stdout]    = note: `#[warn(clippy::unnecessary_cast)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: casting to the same type is unnecessary (`usize` -> `usize`)
[INFO] [stdout]   --> src/day1.rs:39:32
[INFO] [stdout]    |
[INFO] [stdout] 39 |             windowsum += input[(j as usize)];
[INFO] [stdout]    |                                ^^^^^^^^^^^^ help: try: `j`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unnecessary_cast
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this expression creates a reference which is immediately dereferenced by the compiler
[INFO] [stdout]   --> src/day10.rs:27:35
[INFO] [stdout]    |
[INFO] [stdout] 27 |                 sum += scores.get(&char).unwrap();
[INFO] [stdout]    |                                   ^^^^^ help: change this to: `char`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_borrow
[INFO] [stdout]    = note: `#[warn(clippy::needless_borrow)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: manual implementation of an assign operation
[INFO] [stdout]   --> src/day10.rs:65:13
[INFO] [stdout]    |
[INFO] [stdout] 65 |             score = score * 5;
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^ help: replace it with: `score *= 5`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stdout]    = note: `#[warn(clippy::assign_op_pattern)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: casting integer literal to `f32` is unnecessary
[INFO] [stdout]   --> src/day10.rs:72:35
[INFO] [stdout]    |
[INFO] [stdout] 72 |     scores[(scores.len() as f32 / 2 as f32).floor() as usize]
[INFO] [stdout]    |                                   ^^^^^^^^ help: try: `2_f32`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unnecessary_cast
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of a legacy numeric constant
[INFO] [stdout]  --> src/day1.rs:9:20
[INFO] [stdout]   |
[INFO] [stdout] 9 |     let mut prev = std::u32::MAX;
[INFO] [stdout]   |                    ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#legacy_numeric_constants
[INFO] [stdout]   = note: `#[warn(clippy::legacy_numeric_constants)]` on by default
[INFO] [stdout] help: use the associated constant instead
[INFO] [stdout]   |
[INFO] [stdout] 9 -     let mut prev = std::u32::MAX;
[INFO] [stdout] 9 +     let mut prev = u32::MAX;
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: casting to the same type is unnecessary (`usize` -> `usize`)
[INFO] [stdout]   --> src/day1.rs:34:13
[INFO] [stdout]    |
[INFO] [stdout] 34 |         if (i as usize + window_size) > input_len {
[INFO] [stdout]    |             ^^^^^^^^^^ help: try: `i`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unnecessary_cast
[INFO] [stdout]    = note: `#[warn(clippy::unnecessary_cast)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: casting to the same type is unnecessary (`usize` -> `usize`)
[INFO] [stdout]   --> src/day1.rs:39:32
[INFO] [stdout]    |
[INFO] [stdout] 39 |             windowsum += input[(j as usize)];
[INFO] [stdout]    |                                ^^^^^^^^^^^^ help: try: `j`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unnecessary_cast
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this expression creates a reference which is immediately dereferenced by the compiler
[INFO] [stdout]   --> src/day10.rs:27:35
[INFO] [stdout]    |
[INFO] [stdout] 27 |                 sum += scores.get(&char).unwrap();
[INFO] [stdout]    |                                   ^^^^^ help: change this to: `char`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_borrow
[INFO] [stdout]    = note: `#[warn(clippy::needless_borrow)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the loop variable `idx` is used to index `counts`
[INFO] [stdout]   --> src/day3.rs:10:20
[INFO] [stdout]    |
[INFO] [stdout] 10 |         for idx in 0..reading_len {
[INFO] [stdout]    |                    ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_range_loop
[INFO] [stdout]    = note: `#[warn(clippy::needless_range_loop)]` on by default
[INFO] [stdout] help: consider using an iterator and enumerate()
[INFO] [stdout]    |
[INFO] [stdout] 10 -         for idx in 0..reading_len {
[INFO] [stdout] 10 +         for (idx, <item>) in counts.iter_mut().enumerate().take(reading_len) {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: manual implementation of `.is_multiple_of()`
[INFO] [stdout]   --> src/day3.rs:22:12
[INFO] [stdout]    |
[INFO] [stdout] 22 |         if (&readings.len() % 2) == 0 {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace with: `(&readings.len()).is_multiple_of(2)`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#manual_is_multiple_of
[INFO] [stdout]    = note: `#[warn(clippy::manual_is_multiple_of)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: manual implementation of an assign operation
[INFO] [stdout]   --> src/day10.rs:65:13
[INFO] [stdout]    |
[INFO] [stdout] 65 |             score = score * 5;
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^ help: replace it with: `score *= 5`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stdout]    = note: `#[warn(clippy::assign_op_pattern)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: casting integer literal to `f32` is unnecessary
[INFO] [stdout]   --> src/day10.rs:72:35
[INFO] [stdout]    |
[INFO] [stdout] 72 |     scores[(scores.len() as f32 / 2 as f32).floor() as usize]
[INFO] [stdout]    |                                   ^^^^^^^^ help: try: `2_f32`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unnecessary_cast
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function call inside of `expect`
[INFO] [stdout]   --> src/day4.rs:60:43
[INFO] [stdout]    |
[INFO] [stdout] 60 |                       num: n.parse::<u32>().expect(
[INFO] [stdout]    |  ___________________________________________^
[INFO] [stdout] 61 | |                         format!("could not parse string to num on line {}", i + j).as_str(),
[INFO] [stdout] 62 | |                     ),
[INFO] [stdout]    | |_____________________^ help: try: `unwrap_or_else(|_| panic!("could not parse string to num on line {}", i + j))`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#expect_fun_call
[INFO] [stdout]    = note: `#[warn(clippy::expect_fun_call)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the loop variable `n` is only used to index `boards`
[INFO] [stdout]   --> src/day4.rs:81:18
[INFO] [stdout]    |
[INFO] [stdout] 81 |         for n in 0..boards.len() {
[INFO] [stdout]    |                  ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_range_loop
[INFO] [stdout] help: consider using an iterator
[INFO] [stdout]    |
[INFO] [stdout] 81 -         for n in 0..boards.len() {
[INFO] [stdout] 81 +         for <item> in &mut boards {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the loop variable `n` is only used to index `boards`
[INFO] [stdout]    --> src/day4.rs:110:18
[INFO] [stdout]     |
[INFO] [stdout] 110 |         for n in 0..boards.len() {
[INFO] [stdout]     |                  ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_range_loop
[INFO] [stdout] help: consider using an iterator
[INFO] [stdout]     |
[INFO] [stdout] 110 -         for n in 0..boards.len() {
[INFO] [stdout] 110 +         for <item> in &mut boards {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the loop variable `idx` is used to index `counts`
[INFO] [stdout]   --> src/day3.rs:10:20
[INFO] [stdout]    |
[INFO] [stdout] 10 |         for idx in 0..reading_len {
[INFO] [stdout]    |                    ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_range_loop
[INFO] [stdout]    = note: `#[warn(clippy::needless_range_loop)]` on by default
[INFO] [stdout] help: consider using an iterator and enumerate()
[INFO] [stdout]    |
[INFO] [stdout] 10 -         for idx in 0..reading_len {
[INFO] [stdout] 10 +         for (idx, <item>) in counts.iter_mut().enumerate().take(reading_len) {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: manual implementation of `.is_multiple_of()`
[INFO] [stdout]   --> src/day3.rs:22:12
[INFO] [stdout]    |
[INFO] [stdout] 22 |         if (&readings.len() % 2) == 0 {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace with: `(&readings.len()).is_multiple_of(2)`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#manual_is_multiple_of
[INFO] [stdout]    = note: `#[warn(clippy::manual_is_multiple_of)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this boolean expression can be simplified
[INFO] [stdout]   --> src/day5.rs:47:24
[INFO] [stdout]    |
[INFO] [stdout] 47 |         .filter(|line| line.is_straight() || !(filter_diagonals && !line.is_straight()))
[INFO] [stdout]    |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `line.is_straight() || !filter_diagonals || line.is_straight()`
[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: this boolean expression can be simplified
[INFO] [stdout]   --> src/day5.rs:47:46
[INFO] [stdout]    |
[INFO] [stdout] 47 |         .filter(|line| line.is_straight() || !(filter_diagonals && !line.is_straight()))
[INFO] [stdout]    |                                              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `!filter_diagonals || line.is_straight()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#nonminimal_bool
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this boolean expression can be simplified
[INFO] [stdout]    --> src/day5.rs:149:29
[INFO] [stdout]     |
[INFO] [stdout] 149 |             .filter(|&line| line.is_straight() || !(filter_diagonals && !line.is_straight()))
[INFO] [stdout]     |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `line.is_straight() || !filter_diagonals || line.is_straight()`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#nonminimal_bool
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this boolean expression can be simplified
[INFO] [stdout]    --> src/day5.rs:149:51
[INFO] [stdout]     |
[INFO] [stdout] 149 |             .filter(|&line| line.is_straight() || !(filter_diagonals && !line.is_straight()))
[INFO] [stdout]     |                                                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `!filter_diagonals || line.is_straight()`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#nonminimal_bool
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this boolean expression can be simplified
[INFO] [stdout]    --> src/day5.rs:156:29
[INFO] [stdout]     |
[INFO] [stdout] 156 |             .filter(|&line| line.is_straight() || !(filter_diagonals && !line.is_straight()))
[INFO] [stdout]     |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `line.is_straight() || !filter_diagonals || line.is_straight()`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#nonminimal_bool
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this boolean expression can be simplified
[INFO] [stdout]    --> src/day5.rs:156:51
[INFO] [stdout]     |
[INFO] [stdout] 156 |             .filter(|&line| line.is_straight() || !(filter_diagonals && !line.is_straight()))
[INFO] [stdout]     |                                                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `!filter_diagonals || line.is_straight()`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#nonminimal_bool
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function call inside of `expect`
[INFO] [stdout]   --> src/day4.rs:60:43
[INFO] [stdout]    |
[INFO] [stdout] 60 |                       num: n.parse::<u32>().expect(
[INFO] [stdout]    |  ___________________________________________^
[INFO] [stdout] 61 | |                         format!("could not parse string to num on line {}", i + j).as_str(),
[INFO] [stdout] 62 | |                     ),
[INFO] [stdout]    | |_____________________^ help: try: `unwrap_or_else(|_| panic!("could not parse string to num on line {}", i + j))`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#expect_fun_call
[INFO] [stdout]    = note: `#[warn(clippy::expect_fun_call)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the loop variable `n` is only used to index `boards`
[INFO] [stdout]   --> src/day4.rs:81:18
[INFO] [stdout]    |
[INFO] [stdout] 81 |         for n in 0..boards.len() {
[INFO] [stdout]    |                  ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_range_loop
[INFO] [stdout] help: consider using an iterator
[INFO] [stdout]    |
[INFO] [stdout] 81 -         for n in 0..boards.len() {
[INFO] [stdout] 81 +         for <item> in &mut boards {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the loop variable `n` is only used to index `boards`
[INFO] [stdout]    --> src/day4.rs:110:18
[INFO] [stdout]     |
[INFO] [stdout] 110 |         for n in 0..boards.len() {
[INFO] [stdout]     |                  ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_range_loop
[INFO] [stdout] help: consider using an iterator
[INFO] [stdout]     |
[INFO] [stdout] 110 -         for n in 0..boards.len() {
[INFO] [stdout] 110 +         for <item> in &mut boards {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this boolean expression can be simplified
[INFO] [stdout]   --> src/day5.rs:47:24
[INFO] [stdout]    |
[INFO] [stdout] 47 |         .filter(|line| line.is_straight() || !(filter_diagonals && !line.is_straight()))
[INFO] [stdout]    |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `line.is_straight() || !filter_diagonals || line.is_straight()`
[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: this boolean expression can be simplified
[INFO] [stdout]   --> src/day5.rs:47:46
[INFO] [stdout]    |
[INFO] [stdout] 47 |         .filter(|line| line.is_straight() || !(filter_diagonals && !line.is_straight()))
[INFO] [stdout]    |                                              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `!filter_diagonals || line.is_straight()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#nonminimal_bool
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: writing `&String` instead of `&str` involves a new object where a slice will do
[INFO] [stdout]   --> src/day8.rs:61:33
[INFO] [stdout]    |
[INFO] [stdout] 61 | fn non_overlapping_char(subset: &String, superset: &String) -> Option<char> {
[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] 61 - fn non_overlapping_char(subset: &String, superset: &String) -> Option<char> {
[INFO] [stdout] 61 + fn non_overlapping_char(subset: &str, superset: &String) -> Option<char> {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: writing `&String` instead of `&str` involves a new object where a slice will do
[INFO] [stdout]   --> src/day8.rs:61:52
[INFO] [stdout]    |
[INFO] [stdout] 61 | fn non_overlapping_char(subset: &String, superset: &String) -> Option<char> {
[INFO] [stdout]    |                                                    ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stdout] help: change this to
[INFO] [stdout]    |
[INFO] [stdout] 61 - fn non_overlapping_char(subset: &String, superset: &String) -> Option<char> {
[INFO] [stdout] 61 + fn non_overlapping_char(subset: &String, superset: &str) -> Option<char> {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: manual implementation of `Iterator::find`
[INFO] [stdout]   --> src/day8.rs:62:5
[INFO] [stdout]    |
[INFO] [stdout] 62 | /     for char in superset.chars() {
[INFO] [stdout] 63 | |         if !subset.contains(char) {
[INFO] [stdout] 64 | |             return Some(char);
[INFO] [stdout] ...  |
[INFO] [stdout] 67 | |     None
[INFO] [stdout]    | |________^ help: replace with an iterator: `superset.chars().find(|&char| !subset.contains(char))`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#manual_find
[INFO] [stdout]    = note: `#[warn(clippy::manual_find)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: consider using `sort_by_key`
[INFO] [stdout]   --> src/day8.rs:72:5
[INFO] [stdout]    |
[INFO] [stdout] 72 |     display.patterns.sort_by(|a, b| a.len().cmp(&b.len()));
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unnecessary_sort_by
[INFO] [stdout]    = note: `#[warn(clippy::unnecessary_sort_by)]` on by default
[INFO] [stdout] help: try
[INFO] [stdout]    |
[INFO] [stdout] 72 -     display.patterns.sort_by(|a, b| a.len().cmp(&b.len()));
[INFO] [stdout] 72 +     display.patterns.sort_by_key(|a| a.len());
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this expression creates a reference which is immediately dereferenced by the compiler
[INFO] [stdout]    --> src/day8.rs:132:41
[INFO] [stdout]     |
[INFO] [stdout] 132 |                 && non_overlapping_char(&output, &candidate).is_none()
[INFO] [stdout]     |                                         ^^^^^^^ help: change this to: `output`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_borrow
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this expression creates a reference which is immediately dereferenced by the compiler
[INFO] [stdout]    --> src/day8.rs:132:50
[INFO] [stdout]     |
[INFO] [stdout] 132 |                 && non_overlapping_char(&output, &candidate).is_none()
[INFO] [stdout]     |                                                  ^^^^^^^^^^ help: change this to: `candidate`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_borrow
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]   --> src/day9.rs:10:21
[INFO] [stdout]    |
[INFO] [stdout] 10 | /                     return Cell {
[INFO] [stdout] 11 | |                         value: x.to_digit(10).unwrap(),
[INFO] [stdout] 12 | |                         is_basin: false,
[INFO] [stdout] 13 | |                     };
[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] 10 ~                     Cell {
[INFO] [stdout] 11 +                         value: x.to_digit(10).unwrap(),
[INFO] [stdout] 12 +                         is_basin: false,
[INFO] [stdout] 13 ~                     }
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: writing `&Vec` instead of `&[_]` involves a new object where a slice will do
[INFO] [stdout]   --> src/day9.rs:30:22
[INFO] [stdout]    |
[INFO] [stdout] 30 | fn is_low_point(map: &Vec<Vec<Cell>>, i: usize, j: usize) -> bool {
[INFO] [stdout]    |                      ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stdout] help: change this to
[INFO] [stdout]    |
[INFO] [stdout] 30 - fn is_low_point(map: &Vec<Vec<Cell>>, i: usize, j: usize) -> bool {
[INFO] [stdout] 30 + fn is_low_point(map: &[Vec<Cell>], i: usize, j: usize) -> bool {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: writing `&String` instead of `&str` involves a new object where a slice will do
[INFO] [stdout]   --> src/day8.rs:61:33
[INFO] [stdout]    |
[INFO] [stdout] 61 | fn non_overlapping_char(subset: &String, superset: &String) -> Option<char> {
[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] 61 - fn non_overlapping_char(subset: &String, superset: &String) -> Option<char> {
[INFO] [stdout] 61 + fn non_overlapping_char(subset: &str, superset: &String) -> Option<char> {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: writing `&String` instead of `&str` involves a new object where a slice will do
[INFO] [stdout]   --> src/day8.rs:61:52
[INFO] [stdout]    |
[INFO] [stdout] 61 | fn non_overlapping_char(subset: &String, superset: &String) -> Option<char> {
[INFO] [stdout]    |                                                    ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stdout] help: change this to
[INFO] [stdout]    |
[INFO] [stdout] 61 - fn non_overlapping_char(subset: &String, superset: &String) -> Option<char> {
[INFO] [stdout] 61 + fn non_overlapping_char(subset: &String, superset: &str) -> Option<char> {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: manual implementation of `Iterator::find`
[INFO] [stdout]   --> src/day8.rs:62:5
[INFO] [stdout]    |
[INFO] [stdout] 62 | /     for char in superset.chars() {
[INFO] [stdout] 63 | |         if !subset.contains(char) {
[INFO] [stdout] 64 | |             return Some(char);
[INFO] [stdout] ...  |
[INFO] [stdout] 67 | |     None
[INFO] [stdout]    | |________^ help: replace with an iterator: `superset.chars().find(|&char| !subset.contains(char))`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#manual_find
[INFO] [stdout]    = note: `#[warn(clippy::manual_find)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: consider using `sort_by_key`
[INFO] [stdout]   --> src/day8.rs:72:5
[INFO] [stdout]    |
[INFO] [stdout] 72 |     display.patterns.sort_by(|a, b| a.len().cmp(&b.len()));
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unnecessary_sort_by
[INFO] [stdout]    = note: `#[warn(clippy::unnecessary_sort_by)]` on by default
[INFO] [stdout] help: try
[INFO] [stdout]    |
[INFO] [stdout] 72 -     display.patterns.sort_by(|a, b| a.len().cmp(&b.len()));
[INFO] [stdout] 72 +     display.patterns.sort_by_key(|a| a.len());
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this expression creates a reference which is immediately dereferenced by the compiler
[INFO] [stdout]    --> src/day8.rs:132:41
[INFO] [stdout]     |
[INFO] [stdout] 132 |                 && non_overlapping_char(&output, &candidate).is_none()
[INFO] [stdout]     |                                         ^^^^^^^ help: change this to: `output`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_borrow
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this expression creates a reference which is immediately dereferenced by the compiler
[INFO] [stdout]    --> src/day8.rs:132:50
[INFO] [stdout]     |
[INFO] [stdout] 132 |                 && non_overlapping_char(&output, &candidate).is_none()
[INFO] [stdout]     |                                                  ^^^^^^^^^^ help: change this to: `candidate`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_borrow
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]   --> src/day9.rs:10:21
[INFO] [stdout]    |
[INFO] [stdout] 10 | /                     return Cell {
[INFO] [stdout] 11 | |                         value: x.to_digit(10).unwrap(),
[INFO] [stdout] 12 | |                         is_basin: false,
[INFO] [stdout] 13 | |                     };
[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] 10 ~                     Cell {
[INFO] [stdout] 11 +                         value: x.to_digit(10).unwrap(),
[INFO] [stdout] 12 +                         is_basin: false,
[INFO] [stdout] 13 ~                     }
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: writing `&Vec` instead of `&[_]` involves a new object where a slice will do
[INFO] [stdout]   --> src/day9.rs:30:22
[INFO] [stdout]    |
[INFO] [stdout] 30 | fn is_low_point(map: &Vec<Vec<Cell>>, i: usize, j: usize) -> bool {
[INFO] [stdout]    |                      ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stdout] help: change this to
[INFO] [stdout]    |
[INFO] [stdout] 30 - fn is_low_point(map: &Vec<Vec<Cell>>, i: usize, j: usize) -> bool {
[INFO] [stdout] 30 + fn is_low_point(map: &[Vec<Cell>], i: usize, j: usize) -> bool {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: useless use of `vec!`
[INFO] [stdout]   --> src/day8.rs:49:33
[INFO] [stdout]    |
[INFO] [stdout] 49 |     let unique_segment_counts = vec![2, 3, 4, 7];
[INFO] [stdout]    |                                 ^^^^^^^^^^^^^^^^ help: you can use an array directly: `[2, 3, 4, 7]`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_vec
[INFO] [stdout]    = note: `#[warn(clippy::useless_vec)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: useless use of `vec!`
[INFO] [stdout]   --> src/day8.rs:49:33
[INFO] [stdout]    |
[INFO] [stdout] 49 |     let unique_segment_counts = vec![2, 3, 4, 7];
[INFO] [stdout]    |                                 ^^^^^^^^^^^^^^^^ help: you can use an array directly: `[2, 3, 4, 7]`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_vec
[INFO] [stdout]    = note: `#[warn(clippy::useless_vec)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.42s
[INFO] running `Command { std: "docker" "inspect" "c39398c414fc384bae8621fc4e5aec86365ceab757b2d9a8b3ed34e9973f1371", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c39398c414fc384bae8621fc4e5aec86365ceab757b2d9a8b3ed34e9973f1371", kill_on_drop: false }`
[INFO] [stdout] c39398c414fc384bae8621fc4e5aec86365ceab757b2d9a8b3ed34e9973f1371