[INFO] cloning repository https://github.com/powerfulyang/leetcode
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/powerfulyang/leetcode" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpowerfulyang%2Fleetcode", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpowerfulyang%2Fleetcode'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b022252a489bb915c20c77668bffafa790f165eb
[INFO] linting powerfulyang/leetcode against nightly for clippy-nonminimal_bool-denied
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpowerfulyang%2Fleetcode" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/powerfulyang/leetcode
[INFO] finished tweaking git repo https://github.com/powerfulyang/leetcode
[INFO] tweaked toml for git repo https://github.com/powerfulyang/leetcode written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/powerfulyang/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/powerfulyang/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-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+nightly" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] df990bbae2a8bb6caa25f7f0a3b7e8d3afd51612ec567fe618257bfc64230aeb
[INFO] running `Command { std: "docker" "start" "-a" "df990bbae2a8bb6caa25f7f0a3b7e8d3afd51612ec567fe618257bfc64230aeb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "df990bbae2a8bb6caa25f7f0a3b7e8d3afd51612ec567fe618257bfc64230aeb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "df990bbae2a8bb6caa25f7f0a3b7e8d3afd51612ec567fe618257bfc64230aeb", kill_on_drop: false }`
[INFO] [stdout] df990bbae2a8bb6caa25f7f0a3b7e8d3afd51612ec567fe618257bfc64230aeb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+nightly" "clippy" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 57d72c7135f56827b83be7499c8942f00a8243f73058b31252cd4c3ce6cbbcd8
[INFO] running `Command { std: "docker" "start" "-a" "57d72c7135f56827b83be7499c8942f00a8243f73058b31252cd4c3ce6cbbcd8", kill_on_drop: false }`
[INFO] [stderr]     Checking getrandom v0.2.10
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking leetcode v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `value` is never read
[INFO] [stdout]  --> src/trie/trie_node.rs:5:9
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct TrieNode {
[INFO] [stdout]   |            -------- field in this struct
[INFO] [stdout] 5 |     pub value: Option<char>,
[INFO] [stdout]   |         ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `TrieNode` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: module has the same name as its containing module
[INFO] [stdout]  --> src/binary_search/mod.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | mod binary_search;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#module_inception
[INFO] [stdout]   = note: `#[warn(clippy::module_inception)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]   --> src/binary_search/search_matrix.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 19 |     return false;
[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] 19 -     return false;
[INFO] [stdout] 19 +     false
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: module has the same name as its containing module
[INFO] [stdout]  --> src/heap/mod.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | mod heap;
[INFO] [stdout]   | ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#module_inception
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: explicit call to `.into_iter()` in function argument accepting `IntoIterator`
[INFO] [stdout]  --> src/stack/car_fleet.rs:5:14
[INFO] [stdout]   |
[INFO] [stdout] 5 |         .zip(speed.into_iter())
[INFO] [stdout]   |              ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout] note: this parameter accepts any `IntoIterator`, so you don't need to call `.into_iter()`
[INFO] [stdout]  --> /rustc/3645249d79dfb136b5d8de3ce153d19d6698d92d/library/core/src/iter/traits/iterator.rs:629:11
[INFO] [stdout]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_conversion
[INFO] [stdout]   = note: `#[warn(clippy::useless_conversion)]` on by default
[INFO] [stdout] help: consider removing the `.into_iter()`
[INFO] [stdout]   |
[INFO] [stdout] 5 -         .zip(speed.into_iter())
[INFO] [stdout] 5 +         .zip(speed)
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: consider using `sort_by_key`
[INFO] [stdout]  --> src/stack/car_fleet.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     cars.sort_by(|a, b| b.0.cmp(&a.0));
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unnecessary_sort_by
[INFO] [stdout]   = note: `#[warn(clippy::unnecessary_sort_by)]` on by default
[INFO] [stdout] help: try
[INFO] [stdout]   |
[INFO] [stdout] 8 -     cars.sort_by(|a, b| b.0.cmp(&a.0));
[INFO] [stdout] 8 +     cars.sort_by_key(|b| std::cmp::Reverse(b.0));
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: module has the same name as its containing module
[INFO] [stdout]  --> src/tree/mod.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | mod tree;
[INFO] [stdout]   | ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#module_inception
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: called `unwrap` on `node.left` after checking its variant with `is_some`
[INFO] [stdout]   --> src/tree/tree.rs:92:29
[INFO] [stdout]    |
[INFO] [stdout] 91 |             if node.left.is_some() {
[INFO] [stdout]    |             ---------------------- help: try: `if let Some(<item>) = &node.left`
[INFO] [stdout] 92 |                 stack1.push(node.left.as_ref().unwrap());
[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 `node.right` after checking its variant with `is_some`
[INFO] [stdout]   --> src/tree/tree.rs:95:29
[INFO] [stdout]    |
[INFO] [stdout] 94 |             if node.right.is_some() {
[INFO] [stdout]    |             ----------------------- help: try: `if let Some(<item>) = &node.right`
[INFO] [stdout] 95 |                 stack1.push(node.right.as_ref().unwrap());
[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: you seem to be trying to pop elements from a `Vec` in a loop
[INFO] [stdout]   --> src/tree/tree.rs:89:13
[INFO] [stdout]    |
[INFO] [stdout] 89 |             let node = stack1.pop().unwrap();
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#manual_while_let_some
[INFO] [stdout]    = note: `#[warn(clippy::manual_while_let_some)]` on by default
[INFO] [stdout] help: consider using a `while..let` loop
[INFO] [stdout]    |
[INFO] [stdout] 88 ~         while let Some(node) = stack1.pop() {
[INFO] [stdout] 89 ~             
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: you seem to be trying to pop elements from a `Vec` in a loop
[INFO] [stdout]    --> src/tree/tree.rs:100:22
[INFO] [stdout]     |
[INFO] [stdout] 100 |             ans.push(stack2.pop().unwrap());
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#manual_while_let_some
[INFO] [stdout] help: consider using a `while..let` loop
[INFO] [stdout]     |
[INFO] [stdout]  99 ~         while let Some(element) = stack2.pop() {
[INFO] [stdout] 100 ~             ans.push(element);
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this boolean expression can be simplified
[INFO] [stdout]   --> src/trie/find_maximum_xor_by_trie_tree.rs:41:25
[INFO] [stdout]    |
[INFO] [stdout] 41 |             let mut c = !(num & bm != 0) as usize;
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^^^ help: try: `(num & bm == 0)`
[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: the loop variable `letter_counter` is used to index `char_list`
[INFO] [stdout]   --> src/trie/trie_struct.rs:21:31
[INFO] [stdout]    |
[INFO] [stdout] 21 |         for letter_counter in 0..char_list.len() {
[INFO] [stdout]    |                               ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_range_loop
[INFO] [stdout]    = note: `#[warn(clippy::needless_range_loop)]` on by default
[INFO] [stdout] help: consider using an iterator and enumerate()
[INFO] [stdout]    |
[INFO] [stdout] 21 -         for letter_counter in 0..char_list.len() {
[INFO] [stdout] 21 +         for (letter_counter, <item>) in char_list.iter().enumerate() {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the loop variable `new_counter` is only used to index `char_list`
[INFO] [stdout]   --> src/trie/trie_struct.rs:40:32
[INFO] [stdout]    |
[INFO] [stdout] 40 |             for new_counter in last_match..char_list.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] 40 -             for new_counter in last_match..char_list.len() {
[INFO] [stdout] 40 +             for <item> in char_list.iter().skip(last_match) {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]   --> src/trie/trie_struct.rs:65:9
[INFO] [stdout]    |
[INFO] [stdout] 65 |         return true;
[INFO] [stdout]    |         ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stdout] help: remove `return`
[INFO] [stdout]    |
[INFO] [stdout] 65 -         return true;
[INFO] [stdout] 65 +         true
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the loop variable `counter` is only used to index `char_list`
[INFO] [stdout]   --> src/trie/trie_struct.rs:55:24
[INFO] [stdout]    |
[INFO] [stdout] 55 |         for counter in 0..char_list.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] 55 -         for counter in 0..char_list.len() {
[INFO] [stdout] 55 +         for <item> in &char_list {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `value` is never read
[INFO] [stdout]  --> src/trie/trie_node.rs:5:9
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct TrieNode {
[INFO] [stdout]   |            -------- field in this struct
[INFO] [stdout] 5 |     pub value: Option<char>,
[INFO] [stdout]   |         ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `TrieNode` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: module has the same name as its containing module
[INFO] [stdout]  --> src/binary_search/mod.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | mod binary_search;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#module_inception
[INFO] [stdout]   = note: `#[warn(clippy::module_inception)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]   --> src/binary_search/search_matrix.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 19 |     return false;
[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] 19 -     return false;
[INFO] [stdout] 19 +     false
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: used `assert_eq!` with a literal bool
[INFO] [stdout]   --> src/binary_search/search_matrix.rs:28:9
[INFO] [stdout]    |
[INFO] [stdout] 28 | /         assert_eq!(
[INFO] [stdout] 29 | |             search_matrix(
[INFO] [stdout] 30 | |                 vec![vec![1, 3, 5, 7], vec![10, 11, 16, 20], vec![23, 30, 34, 60]],
[INFO] [stdout] 31 | |                 3
[INFO] [stdout] 32 | |             ),
[INFO] [stdout] 33 | |             true
[INFO] [stdout] 34 | |         );
[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] 28 ~         assert!(
[INFO] [stdout] 29 |             search_matrix(
[INFO] [stdout] 30 |                 vec![vec![1, 3, 5, 7], vec![10, 11, 16, 20], vec![23, 30, 34, 60]],
[INFO] [stdout] 31 |                 3
[INFO] [stdout] 32 ~             )
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: module has the same name as its containing module
[INFO] [stdout]  --> src/heap/mod.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | mod heap;
[INFO] [stdout]   | ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#module_inception
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: items after a test module
[INFO] [stdout]    --> src/hello_world/reverse_linked_list.rs:27:1
[INFO] [stdout]     |
[INFO] [stdout]  27 | mod tests {
[INFO] [stdout]     | ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 118 | fn reverse_linked_list_recursive(head: Option<Box<Node>>) -> Option<Box<Node>> {
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#items_after_test_module
[INFO] [stdout]     = note: `#[warn(clippy::items_after_test_module)]` on by default
[INFO] [stdout]     = help: move the items to before the test module was defined
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: explicit call to `.into_iter()` in function argument accepting `IntoIterator`
[INFO] [stdout]  --> src/stack/car_fleet.rs:5:14
[INFO] [stdout]   |
[INFO] [stdout] 5 |         .zip(speed.into_iter())
[INFO] [stdout]   |              ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout] note: this parameter accepts any `IntoIterator`, so you don't need to call `.into_iter()`
[INFO] [stdout]  --> /rustc/3645249d79dfb136b5d8de3ce153d19d6698d92d/library/core/src/iter/traits/iterator.rs:629:11
[INFO] [stdout]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_conversion
[INFO] [stdout]   = note: `#[warn(clippy::useless_conversion)]` on by default
[INFO] [stdout] help: consider removing the `.into_iter()`
[INFO] [stdout]   |
[INFO] [stdout] 5 -         .zip(speed.into_iter())
[INFO] [stdout] 5 +         .zip(speed)
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: consider using `sort_by_key`
[INFO] [stdout]  --> src/stack/car_fleet.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     cars.sort_by(|a, b| b.0.cmp(&a.0));
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unnecessary_sort_by
[INFO] [stdout]   = note: `#[warn(clippy::unnecessary_sort_by)]` on by default
[INFO] [stdout] help: try
[INFO] [stdout]   |
[INFO] [stdout] 8 -     cars.sort_by(|a, b| b.0.cmp(&a.0));
[INFO] [stdout] 8 +     cars.sort_by_key(|b| std::cmp::Reverse(b.0));
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: used `assert_eq!` with a literal bool
[INFO] [stdout]   --> src/stack/valid_parentheses.rs:35:9
[INFO] [stdout]    |
[INFO] [stdout] 35 |         assert_eq!(is_valid("()".to_string()), 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] 35 -         assert_eq!(is_valid("()".to_string()), true);
[INFO] [stdout] 35 +         assert!(is_valid("()".to_string()));
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: used `assert_eq!` with a literal bool
[INFO] [stdout]   --> src/stack/valid_parentheses.rs:36:9
[INFO] [stdout]    |
[INFO] [stdout] 36 |         assert_eq!(is_valid("()[]{}".to_string()), 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] 36 -         assert_eq!(is_valid("()[]{}".to_string()), true);
[INFO] [stdout] 36 +         assert!(is_valid("()[]{}".to_string()));
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: used `assert_eq!` with a literal bool
[INFO] [stdout]   --> src/stack/valid_parentheses.rs:37:9
[INFO] [stdout]    |
[INFO] [stdout] 37 |         assert_eq!(is_valid("(]".to_string()), 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] 37 -         assert_eq!(is_valid("(]".to_string()), false);
[INFO] [stdout] 37 +         assert!(!is_valid("(]".to_string()));
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: module has the same name as its containing module
[INFO] [stdout]  --> src/tree/mod.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | mod tree;
[INFO] [stdout]   | ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#module_inception
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: called `unwrap` on `node.left` after checking its variant with `is_some`
[INFO] [stdout]   --> src/tree/tree.rs:92:29
[INFO] [stdout]    |
[INFO] [stdout] 91 |             if node.left.is_some() {
[INFO] [stdout]    |             ---------------------- help: try: `if let Some(<item>) = &node.left`
[INFO] [stdout] 92 |                 stack1.push(node.left.as_ref().unwrap());
[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 `node.right` after checking its variant with `is_some`
[INFO] [stdout]   --> src/tree/tree.rs:95:29
[INFO] [stdout]    |
[INFO] [stdout] 94 |             if node.right.is_some() {
[INFO] [stdout]    |             ----------------------- help: try: `if let Some(<item>) = &node.right`
[INFO] [stdout] 95 |                 stack1.push(node.right.as_ref().unwrap());
[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: you seem to be trying to pop elements from a `Vec` in a loop
[INFO] [stdout]   --> src/tree/tree.rs:89:13
[INFO] [stdout]    |
[INFO] [stdout] 89 |             let node = stack1.pop().unwrap();
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#manual_while_let_some
[INFO] [stdout]    = note: `#[warn(clippy::manual_while_let_some)]` on by default
[INFO] [stdout] help: consider using a `while..let` loop
[INFO] [stdout]    |
[INFO] [stdout] 88 ~         while let Some(node) = stack1.pop() {
[INFO] [stdout] 89 ~             
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: you seem to be trying to pop elements from a `Vec` in a loop
[INFO] [stdout]    --> src/tree/tree.rs:100:22
[INFO] [stdout]     |
[INFO] [stdout] 100 |             ans.push(stack2.pop().unwrap());
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#manual_while_let_some
[INFO] [stdout] help: consider using a `while..let` loop
[INFO] [stdout]     |
[INFO] [stdout]  99 ~         while let Some(element) = stack2.pop() {
[INFO] [stdout] 100 ~             ans.push(element);
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this boolean expression can be simplified
[INFO] [stdout]   --> src/trie/find_maximum_xor_by_trie_tree.rs:41:25
[INFO] [stdout]    |
[INFO] [stdout] 41 |             let mut c = !(num & bm != 0) as usize;
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^^^ help: try: `(num & bm == 0)`
[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: used `assert_eq!` with a literal bool
[INFO] [stdout]   --> src/trie/magic_dictionary.rs:91:9
[INFO] [stdout]    |
[INFO] [stdout] 91 |         assert_eq!(dict.search("hello".to_string()), 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] 91 -         assert_eq!(dict.search("hello".to_string()), false);
[INFO] [stdout] 91 +         assert!(!dict.search("hello".to_string()));
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: used `assert_eq!` with a literal bool
[INFO] [stdout]   --> src/trie/magic_dictionary.rs:92:9
[INFO] [stdout]    |
[INFO] [stdout] 92 |         assert_eq!(dict.search("hhllo".to_string()), 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] 92 -         assert_eq!(dict.search("hhllo".to_string()), true);
[INFO] [stdout] 92 +         assert!(dict.search("hhllo".to_string()));
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: used `assert_eq!` with a literal bool
[INFO] [stdout]   --> src/trie/magic_dictionary.rs:93:9
[INFO] [stdout]    |
[INFO] [stdout] 93 |         assert_eq!(dict.search("hell".to_string()), 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] 93 -         assert_eq!(dict.search("hell".to_string()), false);
[INFO] [stdout] 93 +         assert!(!dict.search("hell".to_string()));
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: used `assert_eq!` with a literal bool
[INFO] [stdout]    --> src/trie/magic_dictionary.rs:100:9
[INFO] [stdout]     |
[INFO] [stdout] 100 |         assert_eq!(dict.search("hello".to_string()), 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] 100 -         assert_eq!(dict.search("hello".to_string()), true);
[INFO] [stdout] 100 +         assert!(dict.search("hello".to_string()));
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: used `assert_eq!` with a literal bool
[INFO] [stdout]    --> src/trie/magic_dictionary.rs:101:9
[INFO] [stdout]     |
[INFO] [stdout] 101 |         assert_eq!(dict.search("hhllo".to_string()), 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] 101 -         assert_eq!(dict.search("hhllo".to_string()), true);
[INFO] [stdout] 101 +         assert!(dict.search("hhllo".to_string()));
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: used `assert_eq!` with a literal bool
[INFO] [stdout]    --> src/trie/magic_dictionary.rs:102:9
[INFO] [stdout]     |
[INFO] [stdout] 102 |         assert_eq!(dict.search("hell".to_string()), 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] 102 -         assert_eq!(dict.search("hell".to_string()), false);
[INFO] [stdout] 102 +         assert!(!dict.search("hell".to_string()));
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the loop variable `letter_counter` is used to index `char_list`
[INFO] [stdout]   --> src/trie/trie_struct.rs:21:31
[INFO] [stdout]    |
[INFO] [stdout] 21 |         for letter_counter in 0..char_list.len() {
[INFO] [stdout]    |                               ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_range_loop
[INFO] [stdout]    = note: `#[warn(clippy::needless_range_loop)]` on by default
[INFO] [stdout] help: consider using an iterator and enumerate()
[INFO] [stdout]    |
[INFO] [stdout] 21 -         for letter_counter in 0..char_list.len() {
[INFO] [stdout] 21 +         for (letter_counter, <item>) in char_list.iter().enumerate() {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the loop variable `new_counter` is only used to index `char_list`
[INFO] [stdout]   --> src/trie/trie_struct.rs:40:32
[INFO] [stdout]    |
[INFO] [stdout] 40 |             for new_counter in last_match..char_list.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] 40 -             for new_counter in last_match..char_list.len() {
[INFO] [stdout] 40 +             for <item> in char_list.iter().skip(last_match) {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]   --> src/trie/trie_struct.rs:65:9
[INFO] [stdout]    |
[INFO] [stdout] 65 |         return true;
[INFO] [stdout]    |         ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stdout] help: remove `return`
[INFO] [stdout]    |
[INFO] [stdout] 65 -         return true;
[INFO] [stdout] 65 +         true
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the loop variable `counter` is only used to index `char_list`
[INFO] [stdout]   --> src/trie/trie_struct.rs:55:24
[INFO] [stdout]    |
[INFO] [stdout] 55 |         for counter in 0..char_list.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] 55 -         for counter in 0..char_list.len() {
[INFO] [stdout] 55 +         for <item> in &char_list {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: used `assert_eq!` with a literal bool
[INFO] [stdout]   --> src/trie/trie_struct.rs:85:9
[INFO] [stdout]    |
[INFO] [stdout] 85 |         assert_eq!(trie_test.find("Test".to_string()), 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] 85 -         assert_eq!(trie_test.find("Test".to_string()), true);
[INFO] [stdout] 85 +         assert!(trie_test.find("Test".to_string()));
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: used `assert_eq!` with a literal bool
[INFO] [stdout]   --> src/trie/trie_struct.rs:86:9
[INFO] [stdout]    |
[INFO] [stdout] 86 |         assert_eq!(trie_test.find("Tea".to_string()), 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] 86 -         assert_eq!(trie_test.find("Tea".to_string()), true);
[INFO] [stdout] 86 +         assert!(trie_test.find("Tea".to_string()));
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: used `assert_eq!` with a literal bool
[INFO] [stdout]   --> src/trie/trie_struct.rs:87:9
[INFO] [stdout]    |
[INFO] [stdout] 87 |         assert_eq!(trie_test.find("hello".to_string()), 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] 87 -         assert_eq!(trie_test.find("hello".to_string()), false);
[INFO] [stdout] 87 +         assert!(!trie_test.find("hello".to_string()));
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.80s
[INFO] running `Command { std: "docker" "inspect" "57d72c7135f56827b83be7499c8942f00a8243f73058b31252cd4c3ce6cbbcd8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "57d72c7135f56827b83be7499c8942f00a8243f73058b31252cd4c3ce6cbbcd8", kill_on_drop: false }`
[INFO] [stdout] 57d72c7135f56827b83be7499c8942f00a8243f73058b31252cd4c3ce6cbbcd8