[INFO] cloning repository https://github.com/wouter83/AoC2020
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/wouter83/AoC2020" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwouter83%2FAoC2020", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwouter83%2FAoC2020'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 955345f7ffceaf4c8d6f1ddbeee075a37964d4b8
[INFO] linting wouter83/AoC2020 against nightly for clippy-nonminimal_bool-denied
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwouter83%2FAoC2020" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/wouter83/AoC2020
[INFO] finished tweaking git repo https://github.com/wouter83/AoC2020
[INFO] tweaked toml for git repo https://github.com/wouter83/AoC2020 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/wouter83/AoC2020 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/wouter83/AoC2020 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]  Downloading crates ...
[INFO] [stderr]   Downloaded test-case v1.0.0
[INFO] [stderr]   Downloaded syn v1.0.53
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] bab7a630aca9ee864c375fcd709e254517c90f2f709cb88fe2c53e8cc52d11ca
[INFO] running `Command { std: "docker" "start" "-a" "bab7a630aca9ee864c375fcd709e254517c90f2f709cb88fe2c53e8cc52d11ca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bab7a630aca9ee864c375fcd709e254517c90f2f709cb88fe2c53e8cc52d11ca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bab7a630aca9ee864c375fcd709e254517c90f2f709cb88fe2c53e8cc52d11ca", kill_on_drop: false }`
[INFO] [stdout] bab7a630aca9ee864c375fcd709e254517c90f2f709cb88fe2c53e8cc52d11ca
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 552c1adb55221b6b62069d46cb8a93eb4984b1ac1ca0dcabfe00b03edffe800d
[INFO] running `Command { std: "docker" "start" "-a" "552c1adb55221b6b62069d46cb8a93eb4984b1ac1ca0dcabfe00b03edffe800d", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.53
[INFO] [stderr]     Checking AoC2020 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling test-case v1.0.0
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stdout] warning: unused import: `std::iter::FromIterator`
[INFO] [stdout]  --> src/day6.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::iter::FromIterator;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `val`
[INFO] [stdout]  --> src/day6.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 7 |     let val = map.insert(c);
[INFO] [stdout]   |         ^^^ help: if this is intentional, prefix it with an underscore: `_val`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `print` is never used
[INFO] [stdout]    --> src/day4.rs:114:6
[INFO] [stdout]     |
[INFO] [stdout]  54 | impl Passport {
[INFO] [stdout]     | ------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 114 |   fn print(&self) {
[INFO] [stdout]     |      ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]  --> src/day1.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 |     return (x + y) == 2020;
[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] 2 -     return (x + y) == 2020;
[INFO] [stdout] 2 +     (x + y) == 2020
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]  --> src/day1.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     return (x + y + z) == 2020;
[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] 6 -     return (x + y + z) == 2020;
[INFO] [stdout] 6 +     (x + y + z) == 2020
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]   --> src/day1.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     return inp.0 * inp.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] 10 -     return inp.0 * inp.1;
[INFO] [stdout] 10 +     inp.0 * inp.1
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]   --> src/day1.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 |     return inp.0 * inp.1 * inp.2;
[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] 14 -     return inp.0 * inp.1 * inp.2;
[INFO] [stdout] 14 +     inp.0 * inp.1 * inp.2
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]   --> src/day1.rs:25:5
[INFO] [stdout]    |
[INFO] [stdout] 25 |     return (0, 0);
[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] 25 -     return (0, 0);
[INFO] [stdout] 25 +     (0, 0)
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]   --> src/day1.rs:38:5
[INFO] [stdout]    |
[INFO] [stdout] 38 |     return (0, 0, 0);
[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] 38 -     return (0, 0, 0);
[INFO] [stdout] 38 +     (0, 0, 0)
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]   --> src/day2.rs:14:2
[INFO] [stdout]    |
[INFO] [stdout] 14 |  return low <= count && count <= high;
[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] 14 -  return low <= count && count <= high;
[INFO] [stdout] 14 +  low <= count && count <= high
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]   --> src/day2.rs:40:2
[INFO] [stdout]    |
[INFO] [stdout] 40 |  return ret.0 ^ ret.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] 40 -  return ret.0 ^ ret.1;
[INFO] [stdout] 40 +  ret.0 ^ ret.1
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: manual implementation of an assign operation
[INFO] [stdout]   --> src/day2.rs:51:8
[INFO] [stdout]    |
[INFO] [stdout] 51 |        valid_1 = valid_1 + 1;
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `valid_1 += 1`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stdout]    = note: `#[warn(clippy::assign_op_pattern)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: manual implementation of an assign operation
[INFO] [stdout]   --> src/day2.rs:54:8
[INFO] [stdout]    |
[INFO] [stdout] 54 |        valid_2 = valid_2 + 1;
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `valid_2 += 1`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]  --> src/day3.rs:4:3
[INFO] [stdout]   |
[INFO] [stdout] 4 |   return tree == '#';
[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] 4 -   return tree == '#';
[INFO] [stdout] 4 +   tree == '#'
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]   --> src/day3.rs:27:3
[INFO] [stdout]    |
[INFO] [stdout] 27 |   return trees;
[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] 27 -   return trees;
[INFO] [stdout] 27 +   trees
[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/day3.rs:7:23
[INFO] [stdout]   |
[INFO] [stdout] 7 | fn count_trees(slope: &Vec<String>, right: usize, down: usize) -> usize
[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] 7 - fn count_trees(slope: &Vec<String>, right: usize, down: usize) -> usize
[INFO] [stdout] 7 + fn count_trees(slope: &[String], right: usize, down: usize) -> usize
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this operation has no effect
[INFO] [stdout]  --> src/day3.rs:9:25
[INFO] [stdout]   |
[INFO] [stdout] 9 |   let mut start_right = 0 + right;
[INFO] [stdout]   |                         ^^^^^^^^^ help: consider reducing it to: `right`
[INFO] [stdout]   |
[INFO] [stdout]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#identity_op
[INFO] [stdout]   = note: `#[warn(clippy::identity_op)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this operation has no effect
[INFO] [stdout]   --> src/day3.rs:10:24
[INFO] [stdout]    |
[INFO] [stdout] 10 |   let mut start_down = 0 + down;
[INFO] [stdout]    |                        ^^^^^^^^ help: consider reducing it to: `down`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#identity_op
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: manual implementation of an assign operation
[INFO] [stdout]   --> src/day3.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 20 |     start_right = start_right % boundary_right;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `start_right %= boundary_right`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: match expression looks like `matches!` macro
[INFO] [stdout]   --> src/day4.rs:41:5
[INFO] [stdout]    |
[INFO] [stdout] 41 | /     match self.color.as_str() {
[INFO] [stdout] 42 | |       "amb" => true,
[INFO] [stdout] 43 | |       "blu" => true,
[INFO] [stdout] 44 | |       "brn" => true,
[INFO] [stdout] ...  |
[INFO] [stdout] 49 | |       _ => false,
[INFO] [stdout] 50 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_like_matches_macro
[INFO] [stdout]    = note: `#[warn(clippy::match_like_matches_macro)]` on by default
[INFO] [stdout] help: use `matches!` directly
[INFO] [stdout]    |
[INFO] [stdout] 41 -     match self.color.as_str() {
[INFO] [stdout] 42 -       "amb" => true,
[INFO] [stdout] 43 -       "blu" => true,
[INFO] [stdout] 44 -       "brn" => true,
[INFO] [stdout] 45 -       "gry" => true,
[INFO] [stdout] 46 -       "grn" => true,
[INFO] [stdout] 47 -       "hzl" => true,
[INFO] [stdout] 48 -       "oth" => true,
[INFO] [stdout] 49 -       _ => false,
[INFO] [stdout] 50 -     }
[INFO] [stdout] 41 +     matches!(self.color.as_str(), "amb" | "blu" | "brn" | "gry" | "grn" | "hzl" | "oth")
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this boolean expression can be simplified
[INFO] [stdout]    --> src/day4.rs:102:18
[INFO] [stdout]     |
[INFO] [stdout] 102 |               if !yess.is_err() {
[INFO] [stdout]     |                  ^^^^^^^^^^^^^^ help: try: `yess.is_ok()`
[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: called `unwrap` on `yess` after checking its variant with `is_err`
[INFO] [stdout]    --> src/day4.rs:103:27
[INFO] [stdout]     |
[INFO] [stdout] 102 |               if !yess.is_err() {
[INFO] [stdout]     |                   ------------- the check is happening here
[INFO] [stdout] 103 |                 ret.pid = yess.unwrap();
[INFO] [stdout]     |                           ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: try using `match`
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unnecessary_unwrap
[INFO] [stdout]     = note: `#[warn(clippy::unnecessary_unwrap)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of `char::is_digit` with literal radix of 10
[INFO] [stdout]   --> src/day4.rs:69:18
[INFO] [stdout]    |
[INFO] [stdout] 69 |               if c.is_digit(10) {
[INFO] [stdout]    |                  ^^^^^^^^^^^^^^ help: try: `c.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: the loop variable `i` is only used to index `byte_array`
[INFO] [stdout]   --> src/day4.rs:87:24
[INFO] [stdout]    |
[INFO] [stdout] 87 |               for i in 1..=6 {
[INFO] [stdout]    |                        ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_range_loop
[INFO] [stdout]    = note: `#[warn(clippy::needless_range_loop)]` on by default
[INFO] [stdout] help: consider using an iterator
[INFO] [stdout]    |
[INFO] [stdout] 87 -               for i in 1..=6 {
[INFO] [stdout] 87 +               for <item> in byte_array.iter().take(6 + 1).skip(1) {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]    --> src/day4.rs:153:3
[INFO] [stdout]     |
[INFO] [stdout] 153 |   return passports;
[INFO] [stdout]     |   ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stdout] help: remove `return`
[INFO] [stdout]     |
[INFO] [stdout] 153 -   return passports;
[INFO] [stdout] 153 +   passports
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: length comparison to zero
[INFO] [stdout]    --> src/day4.rs:143:8
[INFO] [stdout]     |
[INFO] [stdout] 143 |     if line.len() > 0 {
[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#len_zero
[INFO] [stdout]     = note: `#[warn(clippy::len_zero)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: you seem to be trying to use `match` for an equality check. Consider using `if`
[INFO] [stdout]   --> src/day5.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | /     match c {
[INFO] [stdout] 11 | |       'B' => {
[INFO] [stdout] 12 | |         row |= 1 << index;
[INFO] [stdout] ...  |
[INFO] [stdout] 15 | |     }
[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] 10 ~     if c == 'B' {
[INFO] [stdout] 11 +       row |= 1 << index;
[INFO] [stdout] 12 +     }
[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]   --> src/day5.rs:21:5
[INFO] [stdout]    |
[INFO] [stdout] 21 | /     match c {
[INFO] [stdout] 22 | |       'R' => {
[INFO] [stdout] 23 | |         column |= 1 << index;
[INFO] [stdout] ...  |
[INFO] [stdout] 26 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stdout] help: try
[INFO] [stdout]    |
[INFO] [stdout] 21 ~     if c == 'R' {
[INFO] [stdout] 22 +       column |= 1 << index;
[INFO] [stdout] 23 +     }
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]   --> src/day5.rs:43:3
[INFO] [stdout]    |
[INFO] [stdout] 43 |   return 0;
[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] 43 -   return 0;
[INFO] [stdout] 43 +   0
[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/day5.rs:37:22
[INFO] [stdout]    |
[INFO] [stdout] 37 | fn get_missing(vect: &Vec<u32>) -> u32{
[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] 37 - fn get_missing(vect: &Vec<u32>) -> u32{
[INFO] [stdout] 37 + fn get_missing(vect: &[u32]) -> u32{
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]  --> src/day6.rs:9:3
[INFO] [stdout]   |
[INFO] [stdout] 9 |   return map;
[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] 9 -   return map;
[INFO] [stdout] 9 +   map
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]   --> src/day6.rs:18:3
[INFO] [stdout]    |
[INFO] [stdout] 18 |   return questionaire_group;
[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] 18 -   return questionaire_group;
[INFO] [stdout] 18 +   questionaire_group
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this expression creates a reference which is immediately dereferenced by the compiler
[INFO] [stdout]   --> src/day6.rs:16:55
[INFO] [stdout]    |
[INFO] [stdout] 16 |     questionaire_group.push(parse_questionaire_person(&line));
[INFO] [stdout]    |                                                       ^^^^^ help: change this to: `line`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_borrow
[INFO] [stdout]    = note: `#[warn(clippy::needless_borrow)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]   --> src/day6.rs:35:3
[INFO] [stdout]    |
[INFO] [stdout] 35 |   return questionaire_vec;
[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] 35 -   return questionaire_vec;
[INFO] [stdout] 35 +   questionaire_vec
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: length comparison to zero
[INFO] [stdout]   --> src/day6.rs:25:8
[INFO] [stdout]    |
[INFO] [stdout] 25 |     if line.len() > 0 {
[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#len_zero
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]   --> src/day6.rs:43:3
[INFO] [stdout]    |
[INFO] [stdout] 43 |   return count;
[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] 43 -   return count;
[INFO] [stdout] 43 +   count
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]   --> src/day6.rs:48:3
[INFO] [stdout]    |
[INFO] [stdout] 48 |   return ret;   
[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] 48 -   return ret;   
[INFO] [stdout] 48 +   ret
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this expression creates a reference which is immediately dereferenced by the compiler
[INFO] [stdout]   --> src/day6.rs:47:88
[INFO] [stdout]    |
[INFO] [stdout] 47 |    let ret = sets.iter().fold(sets[0].clone(), |s1: HashSet<char>, s2| s1.intersection(&s2).copied().collect());
[INFO] [stdout]    |                                                                                        ^^^ help: change this to: `s2`
[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: writing `&Vec` instead of `&[_]` involves a new object where a slice will do
[INFO] [stdout]   --> src/day6.rs:51:26
[INFO] [stdout]    |
[INFO] [stdout] 51 | fn count_yes_2(hmap_vec: &Vec<Vec<HashSet<char>>>) -> usize {
[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] 51 - fn count_yes_2(hmap_vec: &Vec<Vec<HashSet<char>>>) -> usize {
[INFO] [stdout] 51 + fn count_yes_2(hmap_vec: &[Vec<HashSet<char>>]) -> usize {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::iter::FromIterator`
[INFO] [stdout]  --> src/day6.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::iter::FromIterator;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `val`
[INFO] [stdout]  --> src/day6.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 7 |     let val = map.insert(c);
[INFO] [stdout]   |         ^^^ help: if this is intentional, prefix it with an underscore: `_val`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `print` is never used
[INFO] [stdout]    --> src/day4.rs:114:6
[INFO] [stdout]     |
[INFO] [stdout]  54 | impl Passport {
[INFO] [stdout]     | ------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 114 |   fn print(&self) {
[INFO] [stdout]     |      ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]  --> src/day1.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 |     return (x + y) == 2020;
[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] 2 -     return (x + y) == 2020;
[INFO] [stdout] 2 +     (x + y) == 2020
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]  --> src/day1.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     return (x + y + z) == 2020;
[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] 6 -     return (x + y + z) == 2020;
[INFO] [stdout] 6 +     (x + y + z) == 2020
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]   --> src/day1.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     return inp.0 * inp.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] 10 -     return inp.0 * inp.1;
[INFO] [stdout] 10 +     inp.0 * inp.1
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]   --> src/day1.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 |     return inp.0 * inp.1 * inp.2;
[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] 14 -     return inp.0 * inp.1 * inp.2;
[INFO] [stdout] 14 +     inp.0 * inp.1 * inp.2
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]   --> src/day1.rs:25:5
[INFO] [stdout]    |
[INFO] [stdout] 25 |     return (0, 0);
[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] 25 -     return (0, 0);
[INFO] [stdout] 25 +     (0, 0)
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]   --> src/day1.rs:38:5
[INFO] [stdout]    |
[INFO] [stdout] 38 |     return (0, 0, 0);
[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] 38 -     return (0, 0, 0);
[INFO] [stdout] 38 +     (0, 0, 0)
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: used `assert_eq!` with a literal bool
[INFO] [stdout]   --> src/day1.rs:65:5
[INFO] [stdout]    |
[INFO] [stdout] 65 |     assert_eq!(true_on_2020_2(1010, 1010), true);
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#bool_assert_comparison
[INFO] [stdout]    = note: `#[warn(clippy::bool_assert_comparison)]` on by default
[INFO] [stdout] help: replace it with `assert!(..)`
[INFO] [stdout]    |
[INFO] [stdout] 65 -     assert_eq!(true_on_2020_2(1010, 1010), true);
[INFO] [stdout] 65 +     assert!(true_on_2020_2(1010, 1010));
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: used `assert_eq!` with a literal bool
[INFO] [stdout]   --> src/day1.rs:66:5
[INFO] [stdout]    |
[INFO] [stdout] 66 |     assert_eq!(true_on_2020_2(1000, 1010), false);
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#bool_assert_comparison
[INFO] [stdout] help: replace it with `assert!(..)`
[INFO] [stdout]    |
[INFO] [stdout] 66 -     assert_eq!(true_on_2020_2(1000, 1010), false);
[INFO] [stdout] 66 +     assert!(!true_on_2020_2(1000, 1010));
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]   --> src/day2.rs:14:2
[INFO] [stdout]    |
[INFO] [stdout] 14 |  return low <= count && count <= high;
[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] 14 -  return low <= count && count <= high;
[INFO] [stdout] 14 +  low <= count && count <= high
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]   --> src/day2.rs:40:2
[INFO] [stdout]    |
[INFO] [stdout] 40 |  return ret.0 ^ ret.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] 40 -  return ret.0 ^ ret.1;
[INFO] [stdout] 40 +  ret.0 ^ ret.1
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: manual implementation of an assign operation
[INFO] [stdout]   --> src/day2.rs:51:8
[INFO] [stdout]    |
[INFO] [stdout] 51 |        valid_1 = valid_1 + 1;
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `valid_1 += 1`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stdout]    = note: `#[warn(clippy::assign_op_pattern)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: manual implementation of an assign operation
[INFO] [stdout]   --> src/day2.rs:54:8
[INFO] [stdout]    |
[INFO] [stdout] 54 |        valid_2 = valid_2 + 1;
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `valid_2 += 1`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: used `assert_eq!` with a literal bool
[INFO] [stdout]   --> src/day2.rs:64:2
[INFO] [stdout]    |
[INFO] [stdout] 64 |  assert_eq!(decode_password(&password), true);
[INFO] [stdout]    |  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#bool_assert_comparison
[INFO] [stdout] help: replace it with `assert!(..)`
[INFO] [stdout]    |
[INFO] [stdout] 64 -  assert_eq!(decode_password(&password), true);
[INFO] [stdout] 64 +  assert!(decode_password(&password));
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: used `assert_eq!` with a literal bool
[INFO] [stdout]   --> src/day2.rs:69:2
[INFO] [stdout]    |
[INFO] [stdout] 69 |  assert_eq!(decode_password(&password), false);
[INFO] [stdout]    |  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#bool_assert_comparison
[INFO] [stdout] help: replace it with `assert!(..)`
[INFO] [stdout]    |
[INFO] [stdout] 69 -  assert_eq!(decode_password(&password), false);
[INFO] [stdout] 69 +  assert!(!decode_password(&password));
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: used `assert_eq!` with a literal bool
[INFO] [stdout]   --> src/day2.rs:74:2
[INFO] [stdout]    |
[INFO] [stdout] 74 |  assert_eq!(decode_password(&password), false);
[INFO] [stdout]    |  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#bool_assert_comparison
[INFO] [stdout] help: replace it with `assert!(..)`
[INFO] [stdout]    |
[INFO] [stdout] 74 -  assert_eq!(decode_password(&password), false);
[INFO] [stdout] 74 +  assert!(!decode_password(&password));
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]  --> src/day3.rs:4:3
[INFO] [stdout]   |
[INFO] [stdout] 4 |   return tree == '#';
[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] 4 -   return tree == '#';
[INFO] [stdout] 4 +   tree == '#'
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]   --> src/day3.rs:27:3
[INFO] [stdout]    |
[INFO] [stdout] 27 |   return trees;
[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] 27 -   return trees;
[INFO] [stdout] 27 +   trees
[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/day3.rs:7:23
[INFO] [stdout]   |
[INFO] [stdout] 7 | fn count_trees(slope: &Vec<String>, right: usize, down: usize) -> usize
[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] 7 - fn count_trees(slope: &Vec<String>, right: usize, down: usize) -> usize
[INFO] [stdout] 7 + fn count_trees(slope: &[String], right: usize, down: usize) -> usize
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this operation has no effect
[INFO] [stdout]  --> src/day3.rs:9:25
[INFO] [stdout]   |
[INFO] [stdout] 9 |   let mut start_right = 0 + right;
[INFO] [stdout]   |                         ^^^^^^^^^ help: consider reducing it to: `right`
[INFO] [stdout]   |
[INFO] [stdout]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#identity_op
[INFO] [stdout]   = note: `#[warn(clippy::identity_op)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this operation has no effect
[INFO] [stdout]   --> src/day3.rs:10:24
[INFO] [stdout]    |
[INFO] [stdout] 10 |   let mut start_down = 0 + down;
[INFO] [stdout]    |                        ^^^^^^^^ help: consider reducing it to: `down`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#identity_op
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: manual implementation of an assign operation
[INFO] [stdout]   --> src/day3.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 20 |     start_right = start_right % boundary_right;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `start_right %= boundary_right`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: used `assert_eq!` with a literal bool
[INFO] [stdout]   --> src/day3.rs:51:3
[INFO] [stdout]    |
[INFO] [stdout] 51 |   assert_eq!(has_tree(&line,0), false);
[INFO] [stdout]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#bool_assert_comparison
[INFO] [stdout] help: replace it with `assert!(..)`
[INFO] [stdout]    |
[INFO] [stdout] 51 -   assert_eq!(has_tree(&line,0), false);
[INFO] [stdout] 51 +   assert!(!has_tree(&line,0));
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: used `assert_eq!` with a literal bool
[INFO] [stdout]   --> src/day3.rs:53:3
[INFO] [stdout]    |
[INFO] [stdout] 53 |   assert_eq!(has_tree(&line,1), false);
[INFO] [stdout]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#bool_assert_comparison
[INFO] [stdout] help: replace it with `assert!(..)`
[INFO] [stdout]    |
[INFO] [stdout] 53 -   assert_eq!(has_tree(&line,1), false);
[INFO] [stdout] 53 +   assert!(!has_tree(&line,1));
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: used `assert_eq!` with a literal bool
[INFO] [stdout]   --> src/day3.rs:55:3
[INFO] [stdout]    |
[INFO] [stdout] 55 |   assert_eq!(has_tree(&line,2), true);
[INFO] [stdout]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#bool_assert_comparison
[INFO] [stdout] help: replace it with `assert!(..)`
[INFO] [stdout]    |
[INFO] [stdout] 55 -   assert_eq!(has_tree(&line,2), true);
[INFO] [stdout] 55 +   assert!(has_tree(&line,2));
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: used `assert_eq!` with a literal bool
[INFO] [stdout]   --> src/day3.rs:57:3
[INFO] [stdout]    |
[INFO] [stdout] 57 |   assert_eq!(has_tree(&line,3), true);
[INFO] [stdout]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#bool_assert_comparison
[INFO] [stdout] help: replace it with `assert!(..)`
[INFO] [stdout]    |
[INFO] [stdout] 57 -   assert_eq!(has_tree(&line,3), true);
[INFO] [stdout] 57 +   assert!(has_tree(&line,3));
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: match expression looks like `matches!` macro
[INFO] [stdout]   --> src/day4.rs:41:5
[INFO] [stdout]    |
[INFO] [stdout] 41 | /     match self.color.as_str() {
[INFO] [stdout] 42 | |       "amb" => true,
[INFO] [stdout] 43 | |       "blu" => true,
[INFO] [stdout] 44 | |       "brn" => true,
[INFO] [stdout] ...  |
[INFO] [stdout] 49 | |       _ => false,
[INFO] [stdout] 50 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_like_matches_macro
[INFO] [stdout]    = note: `#[warn(clippy::match_like_matches_macro)]` on by default
[INFO] [stdout] help: use `matches!` directly
[INFO] [stdout]    |
[INFO] [stdout] 41 -     match self.color.as_str() {
[INFO] [stdout] 42 -       "amb" => true,
[INFO] [stdout] 43 -       "blu" => true,
[INFO] [stdout] 44 -       "brn" => true,
[INFO] [stdout] 45 -       "gry" => true,
[INFO] [stdout] 46 -       "grn" => true,
[INFO] [stdout] 47 -       "hzl" => true,
[INFO] [stdout] 48 -       "oth" => true,
[INFO] [stdout] 49 -       _ => false,
[INFO] [stdout] 50 -     }
[INFO] [stdout] 41 +     matches!(self.color.as_str(), "amb" | "blu" | "brn" | "gry" | "grn" | "hzl" | "oth")
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this boolean expression can be simplified
[INFO] [stdout]    --> src/day4.rs:102:18
[INFO] [stdout]     |
[INFO] [stdout] 102 |               if !yess.is_err() {
[INFO] [stdout]     |                  ^^^^^^^^^^^^^^ help: try: `yess.is_ok()`
[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: called `unwrap` on `yess` after checking its variant with `is_err`
[INFO] [stdout]    --> src/day4.rs:103:27
[INFO] [stdout]     |
[INFO] [stdout] 102 |               if !yess.is_err() {
[INFO] [stdout]     |                   ------------- the check is happening here
[INFO] [stdout] 103 |                 ret.pid = yess.unwrap();
[INFO] [stdout]     |                           ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: try using `match`
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unnecessary_unwrap
[INFO] [stdout]     = note: `#[warn(clippy::unnecessary_unwrap)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of `char::is_digit` with literal radix of 10
[INFO] [stdout]   --> src/day4.rs:69:18
[INFO] [stdout]    |
[INFO] [stdout] 69 |               if c.is_digit(10) {
[INFO] [stdout]    |                  ^^^^^^^^^^^^^^ help: try: `c.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: the loop variable `i` is only used to index `byte_array`
[INFO] [stdout]   --> src/day4.rs:87:24
[INFO] [stdout]    |
[INFO] [stdout] 87 |               for i in 1..=6 {
[INFO] [stdout]    |                        ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_range_loop
[INFO] [stdout]    = note: `#[warn(clippy::needless_range_loop)]` on by default
[INFO] [stdout] help: consider using an iterator
[INFO] [stdout]    |
[INFO] [stdout] 87 -               for i in 1..=6 {
[INFO] [stdout] 87 +               for <item> in byte_array.iter().take(6 + 1).skip(1) {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]    --> src/day4.rs:153:3
[INFO] [stdout]     |
[INFO] [stdout] 153 |   return passports;
[INFO] [stdout]     |   ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stdout] help: remove `return`
[INFO] [stdout]     |
[INFO] [stdout] 153 -   return passports;
[INFO] [stdout] 153 +   passports
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: length comparison to zero
[INFO] [stdout]    --> src/day4.rs:143:8
[INFO] [stdout]     |
[INFO] [stdout] 143 |     if line.len() > 0 {
[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#len_zero
[INFO] [stdout]     = note: `#[warn(clippy::len_zero)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: used `assert_eq!` with a literal bool
[INFO] [stdout]    --> src/day4.rs:191:3
[INFO] [stdout]     |
[INFO] [stdout] 191 |   assert_eq!(passp[0].is_valid(), true);
[INFO] [stdout]     |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#bool_assert_comparison
[INFO] [stdout] help: replace it with `assert!(..)`
[INFO] [stdout]     |
[INFO] [stdout] 191 -   assert_eq!(passp[0].is_valid(), true);
[INFO] [stdout] 191 +   assert!(passp[0].is_valid());
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: used `assert_eq!` with a literal bool
[INFO] [stdout]    --> src/day4.rs:192:3
[INFO] [stdout]     |
[INFO] [stdout] 192 |   assert_eq!(passp[1].is_valid(), false);
[INFO] [stdout]     |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#bool_assert_comparison
[INFO] [stdout] help: replace it with `assert!(..)`
[INFO] [stdout]     |
[INFO] [stdout] 192 -   assert_eq!(passp[1].is_valid(), false);
[INFO] [stdout] 192 +   assert!(!passp[1].is_valid());
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: used `assert_eq!` with a literal bool
[INFO] [stdout]    --> src/day4.rs:193:3
[INFO] [stdout]     |
[INFO] [stdout] 193 |   assert_eq!(passp[2].is_valid(), true);
[INFO] [stdout]     |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#bool_assert_comparison
[INFO] [stdout] help: replace it with `assert!(..)`
[INFO] [stdout]     |
[INFO] [stdout] 193 -   assert_eq!(passp[2].is_valid(), true);
[INFO] [stdout] 193 +   assert!(passp[2].is_valid());
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: used `assert_eq!` with a literal bool
[INFO] [stdout]    --> src/day4.rs:194:3
[INFO] [stdout]     |
[INFO] [stdout] 194 |   assert_eq!(passp[3].is_valid(), false);
[INFO] [stdout]     |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#bool_assert_comparison
[INFO] [stdout] help: replace it with `assert!(..)`
[INFO] [stdout]     |
[INFO] [stdout] 194 -   assert_eq!(passp[3].is_valid(), false);
[INFO] [stdout] 194 +   assert!(!passp[3].is_valid());
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: used `assert_eq!` with a literal bool
[INFO] [stdout]    --> src/day4.rs:218:3
[INFO] [stdout]     |
[INFO] [stdout] 218 |   assert_eq!(passp[0].is_valid(), false);
[INFO] [stdout]     |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#bool_assert_comparison
[INFO] [stdout] help: replace it with `assert!(..)`
[INFO] [stdout]     |
[INFO] [stdout] 218 -   assert_eq!(passp[0].is_valid(), false);
[INFO] [stdout] 218 +   assert!(!passp[0].is_valid());
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: used `assert_eq!` with a literal bool
[INFO] [stdout]    --> src/day4.rs:219:3
[INFO] [stdout]     |
[INFO] [stdout] 219 |   assert_eq!(passp[1].is_valid(), false);
[INFO] [stdout]     |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#bool_assert_comparison
[INFO] [stdout] help: replace it with `assert!(..)`
[INFO] [stdout]     |
[INFO] [stdout] 219 -   assert_eq!(passp[1].is_valid(), false);
[INFO] [stdout] 219 +   assert!(!passp[1].is_valid());
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: used `assert_eq!` with a literal bool
[INFO] [stdout]    --> src/day4.rs:220:3
[INFO] [stdout]     |
[INFO] [stdout] 220 |   assert_eq!(passp[2].is_valid(), false);
[INFO] [stdout]     |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#bool_assert_comparison
[INFO] [stdout] help: replace it with `assert!(..)`
[INFO] [stdout]     |
[INFO] [stdout] 220 -   assert_eq!(passp[2].is_valid(), false);
[INFO] [stdout] 220 +   assert!(!passp[2].is_valid());
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: used `assert_eq!` with a literal bool
[INFO] [stdout]    --> src/day4.rs:221:3
[INFO] [stdout]     |
[INFO] [stdout] 221 |   assert_eq!(passp[3].is_valid(), false);
[INFO] [stdout]     |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#bool_assert_comparison
[INFO] [stdout] help: replace it with `assert!(..)`
[INFO] [stdout]     |
[INFO] [stdout] 221 -   assert_eq!(passp[3].is_valid(), false);
[INFO] [stdout] 221 +   assert!(!passp[3].is_valid());
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: used `assert_eq!` with a literal bool
[INFO] [stdout]    --> src/day4.rs:244:3
[INFO] [stdout]     |
[INFO] [stdout] 244 |   assert_eq!(passp[0].is_valid(), true);
[INFO] [stdout]     |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#bool_assert_comparison
[INFO] [stdout] help: replace it with `assert!(..)`
[INFO] [stdout]     |
[INFO] [stdout] 244 -   assert_eq!(passp[0].is_valid(), true);
[INFO] [stdout] 244 +   assert!(passp[0].is_valid());
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: used `assert_eq!` with a literal bool
[INFO] [stdout]    --> src/day4.rs:245:3
[INFO] [stdout]     |
[INFO] [stdout] 245 |   assert_eq!(passp[1].is_valid(), true);
[INFO] [stdout]     |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#bool_assert_comparison
[INFO] [stdout] help: replace it with `assert!(..)`
[INFO] [stdout]     |
[INFO] [stdout] 245 -   assert_eq!(passp[1].is_valid(), true);
[INFO] [stdout] 245 +   assert!(passp[1].is_valid());
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: used `assert_eq!` with a literal bool
[INFO] [stdout]    --> src/day4.rs:246:3
[INFO] [stdout]     |
[INFO] [stdout] 246 |   assert_eq!(passp[2].is_valid(), true);
[INFO] [stdout]     |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#bool_assert_comparison
[INFO] [stdout] help: replace it with `assert!(..)`
[INFO] [stdout]     |
[INFO] [stdout] 246 -   assert_eq!(passp[2].is_valid(), true);
[INFO] [stdout] 246 +   assert!(passp[2].is_valid());
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: used `assert_eq!` with a literal bool
[INFO] [stdout]    --> src/day4.rs:247:3
[INFO] [stdout]     |
[INFO] [stdout] 247 |   assert_eq!(passp[3].is_valid(), true);
[INFO] [stdout]     |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#bool_assert_comparison
[INFO] [stdout] help: replace it with `assert!(..)`
[INFO] [stdout]     |
[INFO] [stdout] 247 -   assert_eq!(passp[3].is_valid(), true);
[INFO] [stdout] 247 +   assert!(passp[3].is_valid());
[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]   --> src/day5.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | /     match c {
[INFO] [stdout] 11 | |       'B' => {
[INFO] [stdout] 12 | |         row |= 1 << index;
[INFO] [stdout] ...  |
[INFO] [stdout] 15 | |     }
[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] 10 ~     if c == 'B' {
[INFO] [stdout] 11 +       row |= 1 << index;
[INFO] [stdout] 12 +     }
[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]   --> src/day5.rs:21:5
[INFO] [stdout]    |
[INFO] [stdout] 21 | /     match c {
[INFO] [stdout] 22 | |       'R' => {
[INFO] [stdout] 23 | |         column |= 1 << index;
[INFO] [stdout] ...  |
[INFO] [stdout] 26 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stdout] help: try
[INFO] [stdout]    |
[INFO] [stdout] 21 ~     if c == 'R' {
[INFO] [stdout] 22 +       column |= 1 << index;
[INFO] [stdout] 23 +     }
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]   --> src/day5.rs:43:3
[INFO] [stdout]    |
[INFO] [stdout] 43 |   return 0;
[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] 43 -   return 0;
[INFO] [stdout] 43 +   0
[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/day5.rs:37:22
[INFO] [stdout]    |
[INFO] [stdout] 37 | fn get_missing(vect: &Vec<u32>) -> u32{
[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] 37 - fn get_missing(vect: &Vec<u32>) -> u32{
[INFO] [stdout] 37 + fn get_missing(vect: &[u32]) -> u32{
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]  --> src/day6.rs:9:3
[INFO] [stdout]   |
[INFO] [stdout] 9 |   return map;
[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] 9 -   return map;
[INFO] [stdout] 9 +   map
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]   --> src/day6.rs:18:3
[INFO] [stdout]    |
[INFO] [stdout] 18 |   return questionaire_group;
[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] 18 -   return questionaire_group;
[INFO] [stdout] 18 +   questionaire_group
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this expression creates a reference which is immediately dereferenced by the compiler
[INFO] [stdout]   --> src/day6.rs:16:55
[INFO] [stdout]    |
[INFO] [stdout] 16 |     questionaire_group.push(parse_questionaire_person(&line));
[INFO] [stdout]    |                                                       ^^^^^ help: change this to: `line`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_borrow
[INFO] [stdout]    = note: `#[warn(clippy::needless_borrow)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]   --> src/day6.rs:35:3
[INFO] [stdout]    |
[INFO] [stdout] 35 |   return questionaire_vec;
[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] 35 -   return questionaire_vec;
[INFO] [stdout] 35 +   questionaire_vec
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: length comparison to zero
[INFO] [stdout]   --> src/day6.rs:25:8
[INFO] [stdout]    |
[INFO] [stdout] 25 |     if line.len() > 0 {
[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#len_zero
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]   --> src/day6.rs:43:3
[INFO] [stdout]    |
[INFO] [stdout] 43 |   return count;
[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] 43 -   return count;
[INFO] [stdout] 43 +   count
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]   --> src/day6.rs:48:3
[INFO] [stdout]    |
[INFO] [stdout] 48 |   return ret;   
[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] 48 -   return ret;   
[INFO] [stdout] 48 +   ret
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this expression creates a reference which is immediately dereferenced by the compiler
[INFO] [stdout]   --> src/day6.rs:47:88
[INFO] [stdout]    |
[INFO] [stdout] 47 |    let ret = sets.iter().fold(sets[0].clone(), |s1: HashSet<char>, s2| s1.intersection(&s2).copied().collect());
[INFO] [stdout]    |                                                                                        ^^^ help: change this to: `s2`
[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: writing `&Vec` instead of `&[_]` involves a new object where a slice will do
[INFO] [stdout]   --> src/day6.rs:51:26
[INFO] [stdout]    |
[INFO] [stdout] 51 | fn count_yes_2(hmap_vec: &Vec<Vec<HashSet<char>>>) -> usize {
[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] 51 - fn count_yes_2(hmap_vec: &Vec<Vec<HashSet<char>>>) -> usize {
[INFO] [stdout] 51 + fn count_yes_2(hmap_vec: &[Vec<HashSet<char>>]) -> usize {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.97s
[INFO] running `Command { std: "docker" "inspect" "552c1adb55221b6b62069d46cb8a93eb4984b1ac1ca0dcabfe00b03edffe800d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "552c1adb55221b6b62069d46cb8a93eb4984b1ac1ca0dcabfe00b03edffe800d", kill_on_drop: false }`
[INFO] [stdout] 552c1adb55221b6b62069d46cb8a93eb4984b1ac1ca0dcabfe00b03edffe800d