[INFO] cloning repository https://github.com/Lucian-4a25/rust-leetcode
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Lucian-4a25/rust-leetcode" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLucian-4a25%2Frust-leetcode", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLucian-4a25%2Frust-leetcode'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8ec261524917ddcf7df0923a054a167912387f85
[INFO] linting Lucian-4a25/rust-leetcode against nightly for clippy-nonminimal_bool-denied
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLucian-4a25%2Frust-leetcode" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/Lucian-4a25/rust-leetcode
[INFO] finished tweaking git repo https://github.com/Lucian-4a25/rust-leetcode
[INFO] tweaked toml for git repo https://github.com/Lucian-4a25/rust-leetcode written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Lucian-4a25/rust-leetcode 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/Lucian-4a25/rust-leetcode 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-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] e4d6ee449266d96c42c12a114dfdd2d5003281a840a0d5225cdf263fd9e62ae2
[INFO] running `Command { std: "docker" "start" "-a" "e4d6ee449266d96c42c12a114dfdd2d5003281a840a0d5225cdf263fd9e62ae2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e4d6ee449266d96c42c12a114dfdd2d5003281a840a0d5225cdf263fd9e62ae2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e4d6ee449266d96c42c12a114dfdd2d5003281a840a0d5225cdf263fd9e62ae2", kill_on_drop: false }`
[INFO] [stdout] e4d6ee449266d96c42c12a114dfdd2d5003281a840a0d5225cdf263fd9e62ae2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 5caed697b55a2b51de5d1c15b4b8dade517231452ac0524008345725716b1c2d
[INFO] running `Command { std: "docker" "start" "-a" "5caed697b55a2b51de5d1c15b4b8dade517231452ac0524008345725716b1c2d", kill_on_drop: false }`
[INFO] [stderr]     Checking rust-leetcode v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `self`
[INFO] [stdout]  --> src/remove_duplicates.rs:1:19
[INFO] [stdout]   |
[INFO] [stdout] 1 | use core::slice::{self};
[INFO] [stdout]   |                   ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ops::Range`
[INFO] [stdout]  --> src/remove_duplicates.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::ops::Range;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self`
[INFO] [stdout]  --> src/remove_duplicates.rs:1:19
[INFO] [stdout]   |
[INFO] [stdout] 1 | use core::slice::{self};
[INFO] [stdout]   |                   ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ops::Range`
[INFO] [stdout]  --> src/remove_duplicates.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::ops::Range;
[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/dynamic_programming/longest_incre_subseq.rs:11:33
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub fn find_insertion_pos(nums: &Vec<i32>, incre_seq_idx: &Vec<usize>, val: i32) -> 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] 11 - pub fn find_insertion_pos(nums: &Vec<i32>, incre_seq_idx: &Vec<usize>, val: i32) -> usize {
[INFO] [stdout] 11 + pub fn find_insertion_pos(nums: &[i32], incre_seq_idx: &Vec<usize>, val: i32) -> usize {
[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/dynamic_programming/longest_incre_subseq.rs:11:59
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub fn find_insertion_pos(nums: &Vec<i32>, incre_seq_idx: &Vec<usize>, val: i32) -> 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] 11 - pub fn find_insertion_pos(nums: &Vec<i32>, incre_seq_idx: &Vec<usize>, val: i32) -> usize {
[INFO] [stdout] 11 + pub fn find_insertion_pos(nums: &Vec<i32>, incre_seq_idx: &[usize], val: i32) -> usize {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the loop variable `i` is only used to index `prices`
[INFO] [stdout]   --> src/dynamic_programming/max_profile.rs:17:18
[INFO] [stdout]    |
[INFO] [stdout] 17 |         for i in 1..prices.len() {
[INFO] [stdout]    |                  ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_range_loop
[INFO] [stdout]    = note: `#[warn(clippy::needless_range_loop)]` on by default
[INFO] [stdout] help: consider using an iterator
[INFO] [stdout]    |
[INFO] [stdout] 17 -         for i in 1..prices.len() {
[INFO] [stdout] 17 +         for <item> in prices.iter().skip(1) {
[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/dynamic_programming/longest_incre_subseq.rs:11:33
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub fn find_insertion_pos(nums: &Vec<i32>, incre_seq_idx: &Vec<usize>, val: i32) -> 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] 11 - pub fn find_insertion_pos(nums: &Vec<i32>, incre_seq_idx: &Vec<usize>, val: i32) -> usize {
[INFO] [stdout] 11 + pub fn find_insertion_pos(nums: &[i32], incre_seq_idx: &Vec<usize>, val: i32) -> usize {
[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/dynamic_programming/longest_incre_subseq.rs:11:59
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub fn find_insertion_pos(nums: &Vec<i32>, incre_seq_idx: &Vec<usize>, val: i32) -> 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] 11 - pub fn find_insertion_pos(nums: &Vec<i32>, incre_seq_idx: &Vec<usize>, val: i32) -> usize {
[INFO] [stdout] 11 + pub fn find_insertion_pos(nums: &Vec<i32>, incre_seq_idx: &[usize], val: i32) -> usize {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the loop variable `i` is only used to index `prices`
[INFO] [stdout]   --> src/dynamic_programming/max_profile.rs:50:18
[INFO] [stdout]    |
[INFO] [stdout] 50 |         for i in 1..prices.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] 50 -         for i in 1..prices.len() {
[INFO] [stdout] 50 +         for <item> in prices.iter().skip(1) {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this boolean expression can be simplified
[INFO] [stdout]   --> src/length_of_longest_substring.rs:51:16
[INFO] [stdout]    |
[INFO] [stdout] 51 |             if !pos_op.is_some() {
[INFO] [stdout]    |                ^^^^^^^^^^^^^^^^^ help: try: `pos_op.is_none()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#nonminimal_bool
[INFO] [stdout]    = note: `#[warn(clippy::nonminimal_bool)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]   --> src/length_of_longest_substring.rs:67:9
[INFO] [stdout]    |
[INFO] [stdout] 67 |         return max as i32;
[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] 67 -         return max as i32;
[INFO] [stdout] 67 +         max as i32
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the loop variable `i` is only used to index `prices`
[INFO] [stdout]   --> src/dynamic_programming/max_profile.rs:17:18
[INFO] [stdout]    |
[INFO] [stdout] 17 |         for i in 1..prices.len() {
[INFO] [stdout]    |                  ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_range_loop
[INFO] [stdout]    = note: `#[warn(clippy::needless_range_loop)]` on by default
[INFO] [stdout] help: consider using an iterator
[INFO] [stdout]    |
[INFO] [stdout] 17 -         for i in 1..prices.len() {
[INFO] [stdout] 17 +         for <item> in prices.iter().skip(1) {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the loop variable `i` is only used to index `prices`
[INFO] [stdout]   --> src/dynamic_programming/max_profile.rs:50:18
[INFO] [stdout]    |
[INFO] [stdout] 50 |         for i in 1..prices.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] 50 -         for i in 1..prices.len() {
[INFO] [stdout] 50 +         for <item> in prices.iter().skip(1) {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this boolean expression can be simplified
[INFO] [stdout]   --> src/length_of_longest_substring.rs:51:16
[INFO] [stdout]    |
[INFO] [stdout] 51 |             if !pos_op.is_some() {
[INFO] [stdout]    |                ^^^^^^^^^^^^^^^^^ help: try: `pos_op.is_none()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#nonminimal_bool
[INFO] [stdout]    = note: `#[warn(clippy::nonminimal_bool)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]   --> src/length_of_longest_substring.rs:67:9
[INFO] [stdout]    |
[INFO] [stdout] 67 |         return max as i32;
[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] 67 -         return max as i32;
[INFO] [stdout] 67 +         max as i32
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this expression creates a reference which is immediately dereferenced by the compiler
[INFO] [stdout]   --> src/lru.rs:29:45
[INFO] [stdout]    |
[INFO] [stdout] 29 |         if let Some(v) = self.cache.get_mut(&key) {
[INFO] [stdout]    |                                             ^^^^ help: change this to: `key`
[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: casting to the same type is unnecessary (`usize` -> `usize`)
[INFO] [stdout]   --> src/lru.rs:71:29
[INFO] [stdout]    |
[INFO] [stdout] 71 |         self.cache.len() == (self.capacity as usize)
[INFO] [stdout]    |                             ^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `self.capacity`
[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: this loop could be written as a `for` loop
[INFO] [stdout]   --> src/min_window.rs:46:9
[INFO] [stdout]    |
[INFO] [stdout] 46 |         while let Some((i, c)) = chars.next() {
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `for (i, c) in chars.by_ref()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#while_let_on_iterator
[INFO] [stdout]    = note: `#[warn(clippy::while_let_on_iterator)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: deref which would be done by auto-deref
[INFO] [stdout]   --> src/min_window.rs:49:35
[INFO] [stdout]    |
[INFO] [stdout] 49 |                     let counter = (*e.get()).0;
[INFO] [stdout]    |                                   ^^^^^^^^^^ help: try: `e.get()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#explicit_auto_deref
[INFO] [stdout]    = note: `#[warn(clippy::explicit_auto_deref)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: deref which would be done by auto-deref
[INFO] [stdout]   --> src/min_window.rs:50:34
[INFO] [stdout]    |
[INFO] [stdout] 50 |                     let q = &mut (*e.get_mut()).1;
[INFO] [stdout]    |                                  ^^^^^^^^^^^^^^ help: try: `e.get_mut()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#explicit_auto_deref
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: you seem to be trying to use `match` for destructuring a single pattern. Consider using `if let`
[INFO] [stdout]   --> src/min_window.rs:84:13
[INFO] [stdout]    |
[INFO] [stdout] 84 | /             match r.entry(c) {
[INFO] [stdout] 85 | |                 Entry::Occupied(mut e) => {
[INFO] [stdout] 86 | |                     let q = &mut (*e.get_mut()).1;
[INFO] [stdout] 87 | |                     q.push_back(i);
[INFO] [stdout] ...  |
[INFO] [stdout] 93 | |                 _ => {}
[INFO] [stdout] 94 | |             }
[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] 84 ~             if let Entry::Occupied(mut e) = r.entry(c) {
[INFO] [stdout] 85 +                 let q = &mut (*e.get_mut()).1;
[INFO] [stdout] 86 +                 q.push_back(i);
[INFO] [stdout] 87 +                 q.pop_front();
[INFO] [stdout] 88 +                 if c == first_c {
[INFO] [stdout] 89 +                     recal = true;
[INFO] [stdout] 90 +                 }
[INFO] [stdout] 91 +             }
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: deref which would be done by auto-deref
[INFO] [stdout]   --> src/min_window.rs:86:34
[INFO] [stdout]    |
[INFO] [stdout] 86 |                     let q = &mut (*e.get_mut()).1;
[INFO] [stdout]    |                                  ^^^^^^^^^^^^^^ help: try: `e.get_mut()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#explicit_auto_deref
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: casting to the same type is unnecessary (`i32` -> `i32`)
[INFO] [stdout]   --> src/remove_duplicates.rs:17:16
[INFO] [stdout]    |
[INFO] [stdout] 17 |             if nums[i] as i32 == cur {
[INFO] [stdout]    |                ^^^^^^^^^^^^^^ help: try: `nums[i]`
[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: casting to the same type is unnecessary (`i32` -> `i32`)
[INFO] [stdout]   --> src/remove_duplicates.rs:20:19
[INFO] [stdout]    |
[INFO] [stdout] 20 |             cur = nums[i] as i32;
[INFO] [stdout]    |                   ^^^^^^^^^^^^^^ help: try: `nums[i]`
[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: casting to the same type is unnecessary (`i32` -> `i32`)
[INFO] [stdout]   --> src/remove_duplicates.rs:21:23
[INFO] [stdout]    |
[INFO] [stdout] 21 |             nums.push(nums[i] as i32);
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^ help: try: `nums[i]`
[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: writing `&mut Vec` instead of `&mut [_]` involves a new object where a slice will do
[INFO] [stdout]   --> src/remove_duplicates.rs:71:39
[INFO] [stdout]    |
[INFO] [stdout] 71 |     pub fn remove_duplicates2_2(nums: &mut Vec<i32>) -> i32 {
[INFO] [stdout]    |                                       ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stdout] help: change this to
[INFO] [stdout]    |
[INFO] [stdout] 71 -     pub fn remove_duplicates2_2(nums: &mut Vec<i32>) -> i32 {
[INFO] [stdout] 71 +     pub fn remove_duplicates2_2(nums: &mut [i32]) -> i32 {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: casting to the same type is unnecessary (`usize` -> `usize`)
[INFO] [stdout]   --> src/remove_duplicates.rs:80:28
[INFO] [stdout]    |
[INFO] [stdout] 80 |             if num != nums[i as usize - 2] {
[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] 
[INFO] [stdout] 
[INFO] [stdout] warning: this expression creates a reference which is immediately dereferenced by the compiler
[INFO] [stdout]   --> src/lru.rs:29:45
[INFO] [stdout]    |
[INFO] [stdout] 29 |         if let Some(v) = self.cache.get_mut(&key) {
[INFO] [stdout]    |                                             ^^^^ help: change this to: `key`
[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: called `unwrap` on `left_child` after checking its variant with `is_some`
[INFO] [stdout]   --> src/reverse_binary_tree.rs:47:41
[INFO] [stdout]    |
[INFO] [stdout] 46 |             if left_child.is_some() {
[INFO] [stdout]    |             ----------------------- help: try: `if let Some(<item>) = left_child`
[INFO] [stdout] 47 |                 reverse_nodes.push_back(left_child.unwrap().clone());
[INFO] [stdout]    |                                         ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unnecessary_unwrap
[INFO] [stdout]    = note: `#[warn(clippy::unnecessary_unwrap)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: called `unwrap` on `right_child` after checking its variant with `is_some`
[INFO] [stdout]   --> src/reverse_binary_tree.rs:50:41
[INFO] [stdout]    |
[INFO] [stdout] 49 |             if right_child.is_some() {
[INFO] [stdout]    |             ------------------------ help: try: `if let Some(<item>) = right_child`
[INFO] [stdout] 50 |                 reverse_nodes.push_back(right_child.unwrap().clone());
[INFO] [stdout]    |                                         ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unnecessary_unwrap
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this boolean expression can be simplified
[INFO] [stdout]   --> src/reverse_binary_tree.rs:81:37
[INFO] [stdout]    |
[INFO] [stdout] 81 |                 if left >= right || !child_nodes[left].is_some() {
[INFO] [stdout]    |                                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `child_nodes[left].is_none()`
[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/reverse_binary_tree.rs:100:16
[INFO] [stdout]     |
[INFO] [stdout] 100 |             if !child_nodes[child_len - 1].as_ref().is_some() {
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `child_nodes[child_len - 1].as_ref().is_none()`
[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: casting to the same type is unnecessary (`usize` -> `usize`)
[INFO] [stdout]   --> src/lru.rs:71:29
[INFO] [stdout]    |
[INFO] [stdout] 71 |         self.cache.len() == (self.capacity as usize)
[INFO] [stdout]    |                             ^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `self.capacity`
[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: unneeded `return` statement
[INFO] [stdout]    --> src/reverse_binary_tree.rs:112:9
[INFO] [stdout]     |
[INFO] [stdout] 112 |         return root;
[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] 112 -         return root;
[INFO] [stdout] 112 +         root
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: deref which would be done by auto-deref
[INFO] [stdout]   --> src/reverse_binary_tree.rs:91:25
[INFO] [stdout]    |
[INFO] [stdout] 91 |                         (*left_parent.borrow_mut()).left = child_nodes[right].clone();
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `left_parent.borrow_mut()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#explicit_auto_deref
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: deref which would be done by auto-deref
[INFO] [stdout]   --> src/reverse_binary_tree.rs:92:25
[INFO] [stdout]    |
[INFO] [stdout] 92 |                         (*right_parent.borrow_mut()).right = child_nodes[left].clone();
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `right_parent.borrow_mut()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#explicit_auto_deref
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: deref which would be done by auto-deref
[INFO] [stdout]   --> src/reverse_binary_tree.rs:94:25
[INFO] [stdout]    |
[INFO] [stdout] 94 |                         (*left_parent.borrow_mut()).right = child_nodes[right].clone();
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `left_parent.borrow_mut()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#explicit_auto_deref
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this loop could be written as a `for` loop
[INFO] [stdout]   --> src/min_window.rs:46:9
[INFO] [stdout]    |
[INFO] [stdout] 46 |         while let Some((i, c)) = chars.next() {
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `for (i, c) in chars.by_ref()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#while_let_on_iterator
[INFO] [stdout]    = note: `#[warn(clippy::while_let_on_iterator)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: deref which would be done by auto-deref
[INFO] [stdout]   --> src/reverse_binary_tree.rs:95:25
[INFO] [stdout]    |
[INFO] [stdout] 95 |                         (*right_parent.borrow_mut()).left = child_nodes[left].clone();
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `right_parent.borrow_mut()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#explicit_auto_deref
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: deref which would be done by auto-deref
[INFO] [stdout]   --> src/min_window.rs:49:35
[INFO] [stdout]    |
[INFO] [stdout] 49 |                     let counter = (*e.get()).0;
[INFO] [stdout]    |                                   ^^^^^^^^^^ help: try: `e.get()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#explicit_auto_deref
[INFO] [stdout]    = note: `#[warn(clippy::explicit_auto_deref)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: deref which would be done by auto-deref
[INFO] [stdout]   --> src/min_window.rs:50:34
[INFO] [stdout]    |
[INFO] [stdout] 50 |                     let q = &mut (*e.get_mut()).1;
[INFO] [stdout]    |                                  ^^^^^^^^^^^^^^ help: try: `e.get_mut()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#explicit_auto_deref
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: you seem to be trying to use `match` for destructuring a single pattern. Consider using `if let`
[INFO] [stdout]   --> src/min_window.rs:84:13
[INFO] [stdout]    |
[INFO] [stdout] 84 | /             match r.entry(c) {
[INFO] [stdout] 85 | |                 Entry::Occupied(mut e) => {
[INFO] [stdout] 86 | |                     let q = &mut (*e.get_mut()).1;
[INFO] [stdout] 87 | |                     q.push_back(i);
[INFO] [stdout] ...  |
[INFO] [stdout] 93 | |                 _ => {}
[INFO] [stdout] 94 | |             }
[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] 84 ~             if let Entry::Occupied(mut e) = r.entry(c) {
[INFO] [stdout] 85 +                 let q = &mut (*e.get_mut()).1;
[INFO] [stdout] 86 +                 q.push_back(i);
[INFO] [stdout] 87 +                 q.pop_front();
[INFO] [stdout] 88 +                 if c == first_c {
[INFO] [stdout] 89 +                     recal = true;
[INFO] [stdout] 90 +                 }
[INFO] [stdout] 91 +             }
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: deref which would be done by auto-deref
[INFO] [stdout]   --> src/min_window.rs:86:34
[INFO] [stdout]    |
[INFO] [stdout] 86 |                     let q = &mut (*e.get_mut()).1;
[INFO] [stdout]    |                                  ^^^^^^^^^^^^^^ help: try: `e.get_mut()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#explicit_auto_deref
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: casting to the same type is unnecessary (`i32` -> `i32`)
[INFO] [stdout]   --> src/remove_duplicates.rs:17:16
[INFO] [stdout]    |
[INFO] [stdout] 17 |             if nums[i] as i32 == cur {
[INFO] [stdout]    |                ^^^^^^^^^^^^^^ help: try: `nums[i]`
[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: casting to the same type is unnecessary (`i32` -> `i32`)
[INFO] [stdout]   --> src/remove_duplicates.rs:20:19
[INFO] [stdout]    |
[INFO] [stdout] 20 |             cur = nums[i] as i32;
[INFO] [stdout]    |                   ^^^^^^^^^^^^^^ help: try: `nums[i]`
[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: casting to the same type is unnecessary (`i32` -> `i32`)
[INFO] [stdout]   --> src/remove_duplicates.rs:21:23
[INFO] [stdout]    |
[INFO] [stdout] 21 |             nums.push(nums[i] as i32);
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^ help: try: `nums[i]`
[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 boolean expression can be simplified
[INFO] [stdout]   --> src/three_sum.rs:91:40
[INFO] [stdout]    |
[INFO] [stdout] 91 |   ...                   if r[0] == nums[i] && r[1] == nums[i]
[INFO] [stdout]    |  __________________________^
[INFO] [stdout] 92 | | ...                       || r[1] == nums[i] && r[2] == nums[i]
[INFO] [stdout]    | |_______________________________________________________________^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#nonminimal_bool
[INFO] [stdout] help: try
[INFO] [stdout]    |
[INFO] [stdout] 91 -                                     if r[0] == nums[i] && r[1] == nums[i]
[INFO] [stdout] 92 -                                         || r[1] == nums[i] && r[2] == nums[i]
[INFO] [stdout] 91 +                                     if !(r[1] != nums[i] || r[0] != nums[i] && r[2] != nums[i])
[INFO] [stdout]    |
[INFO] [stdout] 91 -                                     if r[0] == nums[i] && r[1] == nums[i]
[INFO] [stdout] 92 -                                         || r[1] == nums[i] && r[2] == nums[i]
[INFO] [stdout] 91 +                                     if (r[2] == nums[i] || r[0] == nums[i]) && r[1] == nums[i]
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: writing `&mut Vec` instead of `&mut [_]` involves a new object where a slice will do
[INFO] [stdout]   --> src/remove_duplicates.rs:71:39
[INFO] [stdout]    |
[INFO] [stdout] 71 |     pub fn remove_duplicates2_2(nums: &mut Vec<i32>) -> i32 {
[INFO] [stdout]    |                                       ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stdout] help: change this to
[INFO] [stdout]    |
[INFO] [stdout] 71 -     pub fn remove_duplicates2_2(nums: &mut Vec<i32>) -> i32 {
[INFO] [stdout] 71 +     pub fn remove_duplicates2_2(nums: &mut [i32]) -> i32 {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: casting to the same type is unnecessary (`usize` -> `usize`)
[INFO] [stdout]   --> src/remove_duplicates.rs:80:28
[INFO] [stdout]    |
[INFO] [stdout] 80 |             if num != nums[i as usize - 2] {
[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] 
[INFO] [stdout] 
[INFO] [stdout] warning: called `unwrap` on `left_child` after checking its variant with `is_some`
[INFO] [stdout]   --> src/reverse_binary_tree.rs:47:41
[INFO] [stdout]    |
[INFO] [stdout] 46 |             if left_child.is_some() {
[INFO] [stdout]    |             ----------------------- help: try: `if let Some(<item>) = left_child`
[INFO] [stdout] 47 |                 reverse_nodes.push_back(left_child.unwrap().clone());
[INFO] [stdout]    |                                         ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unnecessary_unwrap
[INFO] [stdout]    = note: `#[warn(clippy::unnecessary_unwrap)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: called `unwrap` on `right_child` after checking its variant with `is_some`
[INFO] [stdout]   --> src/reverse_binary_tree.rs:50:41
[INFO] [stdout]    |
[INFO] [stdout] 49 |             if right_child.is_some() {
[INFO] [stdout]    |             ------------------------ help: try: `if let Some(<item>) = right_child`
[INFO] [stdout] 50 |                 reverse_nodes.push_back(right_child.unwrap().clone());
[INFO] [stdout]    |                                         ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unnecessary_unwrap
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this boolean expression can be simplified
[INFO] [stdout]   --> src/reverse_binary_tree.rs:81:37
[INFO] [stdout]    |
[INFO] [stdout] 81 |                 if left >= right || !child_nodes[left].is_some() {
[INFO] [stdout]    |                                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `child_nodes[left].is_none()`
[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/reverse_binary_tree.rs:100:16
[INFO] [stdout]     |
[INFO] [stdout] 100 |             if !child_nodes[child_len - 1].as_ref().is_some() {
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `child_nodes[child_len - 1].as_ref().is_none()`
[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: unneeded `return` statement
[INFO] [stdout]   --> src/two_sum.rs:23:9
[INFO] [stdout]    |
[INFO] [stdout] 23 |         return 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] 23 -         return vec![];
[INFO] [stdout] 23 +         vec![]
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]    --> src/reverse_binary_tree.rs:112:9
[INFO] [stdout]     |
[INFO] [stdout] 112 |         return root;
[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] 112 -         return root;
[INFO] [stdout] 112 +         root
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: deref which would be done by auto-deref
[INFO] [stdout]   --> src/reverse_binary_tree.rs:91:25
[INFO] [stdout]    |
[INFO] [stdout] 91 |                         (*left_parent.borrow_mut()).left = child_nodes[right].clone();
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `left_parent.borrow_mut()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#explicit_auto_deref
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: deref which would be done by auto-deref
[INFO] [stdout]   --> src/reverse_binary_tree.rs:92:25
[INFO] [stdout]    |
[INFO] [stdout] 92 |                         (*right_parent.borrow_mut()).right = child_nodes[left].clone();
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `right_parent.borrow_mut()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#explicit_auto_deref
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: deref which would be done by auto-deref
[INFO] [stdout]   --> src/reverse_binary_tree.rs:94:25
[INFO] [stdout]    |
[INFO] [stdout] 94 |                         (*left_parent.borrow_mut()).right = child_nodes[right].clone();
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `left_parent.borrow_mut()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#explicit_auto_deref
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: deref which would be done by auto-deref
[INFO] [stdout]   --> src/reverse_binary_tree.rs:95:25
[INFO] [stdout]    |
[INFO] [stdout] 95 |                         (*right_parent.borrow_mut()).left = child_nodes[left].clone();
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `right_parent.borrow_mut()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#explicit_auto_deref
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this boolean expression can be simplified
[INFO] [stdout]   --> src/three_sum.rs:91:40
[INFO] [stdout]    |
[INFO] [stdout] 91 |   ...                   if r[0] == nums[i] && r[1] == nums[i]
[INFO] [stdout]    |  __________________________^
[INFO] [stdout] 92 | | ...                       || r[1] == nums[i] && r[2] == nums[i]
[INFO] [stdout]    | |_______________________________________________________________^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#nonminimal_bool
[INFO] [stdout] help: try
[INFO] [stdout]    |
[INFO] [stdout] 91 -                                     if r[0] == nums[i] && r[1] == nums[i]
[INFO] [stdout] 92 -                                         || r[1] == nums[i] && r[2] == nums[i]
[INFO] [stdout] 91 +                                     if !(r[1] != nums[i] || r[0] != nums[i] && r[2] != nums[i])
[INFO] [stdout]    |
[INFO] [stdout] 91 -                                     if r[0] == nums[i] && r[1] == nums[i]
[INFO] [stdout] 92 -                                         || r[1] == nums[i] && r[2] == nums[i]
[INFO] [stdout] 91 +                                     if (r[2] == nums[i] || r[0] == nums[i]) && r[1] == nums[i]
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: feature `slice_range` is declared but not used
[INFO] [stdout]  --> src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(slice_range)]
[INFO] [stdout]   |            ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_features)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]   --> src/two_sum.rs:23:9
[INFO] [stdout]    |
[INFO] [stdout] 23 |         return 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] 23 -         return vec![];
[INFO] [stdout] 23 +         vec![]
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: feature `slice_range` is declared but not used
[INFO] [stdout]  --> src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(slice_range)]
[INFO] [stdout]   |            ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_features)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.57s
[INFO] running `Command { std: "docker" "inspect" "5caed697b55a2b51de5d1c15b4b8dade517231452ac0524008345725716b1c2d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5caed697b55a2b51de5d1c15b4b8dade517231452ac0524008345725716b1c2d", kill_on_drop: false }`
[INFO] [stdout] 5caed697b55a2b51de5d1c15b4b8dade517231452ac0524008345725716b1c2d