[INFO] cloning repository https://github.com/AngelPwG/rust-data-structures
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[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAngelPwG%2Frust-data-structures'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 317a4de4b37b3f9a53218929088a75facdc3da56
[INFO] linting AngelPwG/rust-data-structures against nightly for clippy-nonminimal_bool-denied
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[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/AngelPwG/rust-data-structures
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[INFO] tweaked toml for git repo https://github.com/AngelPwG/rust-data-structures written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/AngelPwG/rust-data-structures 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/AngelPwG/rust-data-structures already has a lockfile, it will not be regenerated
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 71409d004eeb0dbe9167384863a8146300991a083dd663b4c8ba84e54ee5e651
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[INFO] [stdout] 71409d004eeb0dbe9167384863a8146300991a083dd663b4c8ba84e54ee5e651
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] c44d3271b602c67cf46f25a0189e5249ae1573d5ddae2521b9d63756287bccf7
[INFO] running `Command { std: "docker" "start" "-a" "c44d3271b602c67cf46f25a0189e5249ae1573d5ddae2521b9d63756287bccf7", kill_on_drop: false }`
[INFO] [stderr]     Checking data_structures v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `data`
[INFO] [stdout]    --> src/bptree.rs:161:29
[INFO] [stdout]     |
[INFO] [stdout] 161 |             NodeType::Leaf {data, ..} => {
[INFO] [stdout]     |                             ^^^^ help: try ignoring the field: `data: _`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/bptree.rs:389:21
[INFO] [stdout]     |
[INFO] [stdout] 389 |                 let mut node_mut  =  &mut *node.borrow_mut();
[INFO] [stdout]     |                     ----^^^^^^^^
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `QueueNode` is never constructed
[INFO] [stdout]  --> src/queue.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | struct QueueNode<T: Display> {
[INFO] [stdout]   |        ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Queue` is never constructed
[INFO] [stdout]  --> src/queue.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 8 | struct Queue<T: Display> {
[INFO] [stdout]   |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `enqueue`, `dequeue`, and `show_queue` are never used
[INFO] [stdout]   --> src/queue.rs:13:8
[INFO] [stdout]    |
[INFO] [stdout] 12 | impl<T: Display> Queue<T> {
[INFO] [stdout]    | ------------------------- methods in this implementation
[INFO] [stdout] 13 |     fn enqueue(&mut self, value: T) -> () {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 24 |     fn dequeue(&mut self) -> Option<T>{
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 33 |     fn show_queue(&self) {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `TreeNode` is never constructed
[INFO] [stdout]  --> src/bst.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | struct TreeNode<T: Display + PartialOrd>{
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Tree` is never constructed
[INFO] [stdout]  --> src/bst.rs:9:8
[INFO] [stdout]   |
[INFO] [stdout] 9 | struct Tree<T: Display + PartialOrd>{
[INFO] [stdout]   |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `insert`, `inner_insert`, `print_in_order`, and `inner_print` are never used
[INFO] [stdout]   --> src/bst.rs:14:12
[INFO] [stdout]    |
[INFO] [stdout] 13 | impl<T: Display + PartialOrd> Tree<T>{
[INFO] [stdout]    | ------------------------------------- associated items in this implementation
[INFO] [stdout] 14 |     pub fn insert(&mut self, value: T){
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 17 |     fn inner_insert(node: &mut Option<Box<TreeNode<T>>>, value: T){
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 32 |     pub fn print_in_order(&self) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 37 |     fn inner_print(node: &Option<Box<TreeNode<T>>>) { match node {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `LEAF_T` is never used
[INFO] [stdout]  --> src/bptree.rs:5:7
[INFO] [stdout]   |
[INFO] [stdout] 5 | const LEAF_T: u8 = 3;
[INFO] [stdout]   |       ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `INTERNAL_T` is never used
[INFO] [stdout]  --> src/bptree.rs:6:7
[INFO] [stdout]   |
[INFO] [stdout] 6 | const INTERNAL_T: u8 = 4;
[INFO] [stdout]   |       ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `NodeRef` is never used
[INFO] [stdout]  --> src/bptree.rs:7:6
[INFO] [stdout]   |
[INFO] [stdout] 7 | type NodeRef<T> = Rc<RefCell<Node<T>>>;
[INFO] [stdout]   |      ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `BPlusTree` is never constructed
[INFO] [stdout]  --> src/bptree.rs:9:12
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub struct BPlusTree<T: Display + PartialOrd>{
[INFO] [stdout]   |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Node` is never constructed
[INFO] [stdout]   --> src/bptree.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub struct Node<T: Display + PartialOrd>{
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `NodeType` is never used
[INFO] [stdout]   --> src/bptree.rs:17:10
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub enum NodeType<T: Display + PartialOrd>{
[INFO] [stdout]    |          ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new_node`, `is_full`, and `split_child` are never used
[INFO] [stdout]   --> src/bptree.rs:23:12
[INFO] [stdout]    |
[INFO] [stdout] 22 | impl<T: Display + PartialOrd> Node<T>{
[INFO] [stdout]    | ------------------------------------- associated items in this implementation
[INFO] [stdout] 23 |     pub fn new_node(t: u8, is_leaf: bool) -> NodeRef<T>{
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 35 |     fn is_full(&self) -> bool { 
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 38 |     fn split_child(&mut self, children_index: usize){
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple associated items are never used
[INFO] [stdout]    --> src/bptree.rs:75:12
[INFO] [stdout]     |
[INFO] [stdout]  74 | impl<T: Display + PartialOrd> BPlusTree<T>{
[INFO] [stdout]     | ------------------------------------------ associated items in this implementation
[INFO] [stdout]  75 |     pub fn new() -> Self{
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout]  78 |     pub fn insert(&mut self, key: u64, value: T) -> bool{
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 106 |     fn insert_non_full(node: &mut NodeRef<T>, key: u64, value: T) -> bool{
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 150 |     pub fn search(&self, key: u64) -> Option<(NodeRef<T>, usize)>{
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 156 |     fn search_in(node: NodeRef<T>, key: u64) -> Option<(NodeRef<T>, usize)>{
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 181 |     pub fn print_recursive(&self) {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 187 |     fn print_recursively(node: &NodeRef<T>, level: usize){
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 200 |     fn borrow_or_merge(node: NodeRef<T>, index: usize) -> bool{
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 237 |     fn borrow_from_left(padre: NodeRef<T>, hijo: NodeRef<T>, izq: NodeRef<T>, index: usize){
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 257 |     fn borrow_from_right(padre:NodeRef<T>, hijo:NodeRef<T>, der:NodeRef<T>, index: usize){
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 276 |     fn merge_from_right(padre: NodeRef<T>, hijo: NodeRef<T>, der: NodeRef<T>, index: usize) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 301 |     pub fn delete(&mut self, key: u64){
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 322 |     fn delete_in(node_rc: NodeRef<T>, key: u64){
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 365 |     pub fn update(&self, key: u64, record: T){
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 375 |     fn update_in(node: NodeRef<T>, key: u64, record: T){
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded unit return type
[INFO] [stdout]   --> src/queue.rs:13:36
[INFO] [stdout]    |
[INFO] [stdout] 13 |     fn enqueue(&mut self, value: T) -> () {
[INFO] [stdout]    |                                    ^^^^^^ help: remove the `-> ()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_unit
[INFO] [stdout]    = note: `#[warn(clippy::unused_unit)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]   --> src/bst.rs:38:21
[INFO] [stdout]    |
[INFO] [stdout] 38 |             None => return,
[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: replace `return` with a unit value
[INFO] [stdout]    |
[INFO] [stdout] 38 -             None => return,
[INFO] [stdout] 38 +             None => (),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `clone` on type `u64` which implements the `Copy` trait
[INFO] [stdout]   --> src/bptree.rs:54:62
[INFO] [stdout]    |
[INFO] [stdout] 54 | ...                   self.keys.insert(children_index, second_mut.keys[0].clone());
[INFO] [stdout]    |                                                        ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try removing the `clone` call: `second_mut.keys[0]`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_on_copy
[INFO] [stdout]    = note: `#[warn(clippy::clone_on_copy)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this expression creates a reference which is immediately dereferenced by the compiler
[INFO] [stdout]   --> src/bptree.rs:96:54
[INFO] [stdout]    |
[INFO] [stdout] 96 |                         children.insert(0, Rc::clone(&root));
[INFO] [stdout]    |                                                      ^^^^^ help: change this to: `root`
[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: you seem to be trying to use `match` for destructuring a single pattern. Consider using `if let`
[INFO] [stdout]    --> src/bptree.rs:191:9
[INFO] [stdout]     |
[INFO] [stdout] 191 | /         match &node_ref.node_type {
[INFO] [stdout] 192 | |             NodeType::Internal{children} => {
[INFO] [stdout] 193 | |                 for child in children {
[INFO] [stdout] 194 | |                     Self::print_recursively(&Rc::clone(child), level + 1);
[INFO] [stdout] ...   |
[INFO] [stdout] 197 | |             _ => {}
[INFO] [stdout] 198 | |         }
[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] 191 ~         if let NodeType::Internal{children} = &node_ref.node_type {
[INFO] [stdout] 192 +             for child in children {
[INFO] [stdout] 193 +                 Self::print_recursively(&Rc::clone(child), level + 1);
[INFO] [stdout] 194 +             }
[INFO] [stdout] 195 +         }
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this boolean expression can be simplified
[INFO] [stdout]    --> src/bptree.rs:222:12
[INFO] [stdout]     |
[INFO] [stdout] 222 |         if !has_left.is_none() && is_left_empty {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^ help: try: `has_left.is_some()`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#nonminimal_bool
[INFO] [stdout]     = note: `#[warn(clippy::nonminimal_bool)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this boolean expression can be simplified
[INFO] [stdout]    --> src/bptree.rs:225:19
[INFO] [stdout]     |
[INFO] [stdout] 225 |         } else if !has_right.is_none() && is_right_empty {
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^^^^^^^ help: try: `has_right.is_some()`
[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: called `unwrap` on `has_left` after checking its variant with `is_none`
[INFO] [stdout]    --> src/bptree.rs:223:70
[INFO] [stdout]     |
[INFO] [stdout] 222 |         if !has_left.is_none() && is_left_empty {
[INFO] [stdout]     |             ------------------ the check is happening here
[INFO] [stdout] 223 |             Self::borrow_from_left(Rc::clone(&node), child.unwrap(), has_left.unwrap(), index);
[INFO] [stdout]     |                                                                      ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: try using `if let` or `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: this expression creates a reference which is immediately dereferenced by the compiler
[INFO] [stdout]    --> src/bptree.rs:303:37
[INFO] [stdout]     |
[INFO] [stdout] 303 |             Some(node) => Rc::clone(&node),
[INFO] [stdout]     |                                     ^^^^^ help: change this to: `node`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_borrow
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this expression creates a reference which is immediately dereferenced by the compiler
[INFO] [stdout]    --> src/bptree.rs:372:35
[INFO] [stdout]     |
[INFO] [stdout] 372 |         Self::update_in(Rc::clone(&root_rc), key, record);
[INFO] [stdout]     |                                   ^^^^^^^^ help: change this to: `root_rc`
[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: unused variable: `data`
[INFO] [stdout]    --> src/bptree.rs:161:29
[INFO] [stdout]     |
[INFO] [stdout] 161 |             NodeType::Leaf {data, ..} => {
[INFO] [stdout]     |                             ^^^^ help: try ignoring the field: `data: _`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/bptree.rs:389:21
[INFO] [stdout]     |
[INFO] [stdout] 389 |                 let mut node_mut  =  &mut *node.borrow_mut();
[INFO] [stdout]     |                     ----^^^^^^^^
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `clone` on type `u64` which implements the `Copy` trait
[INFO] [stdout]   --> src/bptree.rs:54:62
[INFO] [stdout]    |
[INFO] [stdout] 54 | ...                   self.keys.insert(children_index, second_mut.keys[0].clone());
[INFO] [stdout]    |                                                        ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try removing the `clone` call: `second_mut.keys[0]`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_on_copy
[INFO] [stdout]    = note: `#[warn(clippy::clone_on_copy)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this expression creates a reference which is immediately dereferenced by the compiler
[INFO] [stdout]   --> src/bptree.rs:96:54
[INFO] [stdout]    |
[INFO] [stdout] 96 |                         children.insert(0, Rc::clone(&root));
[INFO] [stdout]    |                                                      ^^^^^ help: change this to: `root`
[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: you seem to be trying to use `match` for destructuring a single pattern. Consider using `if let`
[INFO] [stdout]    --> src/bptree.rs:191:9
[INFO] [stdout]     |
[INFO] [stdout] 191 | /         match &node_ref.node_type {
[INFO] [stdout] 192 | |             NodeType::Internal{children} => {
[INFO] [stdout] 193 | |                 for child in children {
[INFO] [stdout] 194 | |                     Self::print_recursively(&Rc::clone(child), level + 1);
[INFO] [stdout] ...   |
[INFO] [stdout] 197 | |             _ => {}
[INFO] [stdout] 198 | |         }
[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] 191 ~         if let NodeType::Internal{children} = &node_ref.node_type {
[INFO] [stdout] 192 +             for child in children {
[INFO] [stdout] 193 +                 Self::print_recursively(&Rc::clone(child), level + 1);
[INFO] [stdout] 194 +             }
[INFO] [stdout] 195 +         }
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this boolean expression can be simplified
[INFO] [stdout]    --> src/bptree.rs:222:12
[INFO] [stdout]     |
[INFO] [stdout] 222 |         if !has_left.is_none() && is_left_empty {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^ help: try: `has_left.is_some()`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#nonminimal_bool
[INFO] [stdout]     = note: `#[warn(clippy::nonminimal_bool)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this boolean expression can be simplified
[INFO] [stdout]    --> src/bptree.rs:225:19
[INFO] [stdout]     |
[INFO] [stdout] 225 |         } else if !has_right.is_none() && is_right_empty {
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^^^^^^^ help: try: `has_right.is_some()`
[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: called `unwrap` on `has_left` after checking its variant with `is_none`
[INFO] [stdout]    --> src/bptree.rs:223:70
[INFO] [stdout]     |
[INFO] [stdout] 222 |         if !has_left.is_none() && is_left_empty {
[INFO] [stdout]     |             ------------------ the check is happening here
[INFO] [stdout] 223 |             Self::borrow_from_left(Rc::clone(&node), child.unwrap(), has_left.unwrap(), index);
[INFO] [stdout]     |                                                                      ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: try using `if let` or `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: this expression creates a reference which is immediately dereferenced by the compiler
[INFO] [stdout]    --> src/bptree.rs:303:37
[INFO] [stdout]     |
[INFO] [stdout] 303 |             Some(node) => Rc::clone(&node),
[INFO] [stdout]     |                                     ^^^^^ help: change this to: `node`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_borrow
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this expression creates a reference which is immediately dereferenced by the compiler
[INFO] [stdout]    --> src/bptree.rs:372:35
[INFO] [stdout]     |
[INFO] [stdout] 372 |         Self::update_in(Rc::clone(&root_rc), key, record);
[INFO] [stdout]     |                                   ^^^^^^^^ help: change this to: `root_rc`
[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: unused variable: `data`
[INFO] [stdout]    --> src/bptree.rs:161:29
[INFO] [stdout]     |
[INFO] [stdout] 161 |             NodeType::Leaf {data, ..} => {
[INFO] [stdout]     |                             ^^^^ help: try ignoring the field: `data: _`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `data`
[INFO] [stdout]    --> src/bptree.rs:161:29
[INFO] [stdout]     |
[INFO] [stdout] 161 |             NodeType::Leaf {data, ..} => {
[INFO] [stdout]     |                             ^^^^ help: try ignoring the field: `data: _`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/bptree.rs:389:21
[INFO] [stdout]     |
[INFO] [stdout] 389 |                 let mut node_mut  =  &mut *node.borrow_mut();
[INFO] [stdout]     |                     ----^^^^^^^^
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `clone` on type `u64` which implements the `Copy` trait
[INFO] [stdout]   --> src/bptree.rs:54:62
[INFO] [stdout]    |
[INFO] [stdout] 54 | ...                   self.keys.insert(children_index, second_mut.keys[0].clone());
[INFO] [stdout]    |                                                        ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try removing the `clone` call: `second_mut.keys[0]`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_on_copy
[INFO] [stdout]    = note: `#[warn(clippy::clone_on_copy)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this expression creates a reference which is immediately dereferenced by the compiler
[INFO] [stdout]   --> src/bptree.rs:96:54
[INFO] [stdout]    |
[INFO] [stdout] 96 |                         children.insert(0, Rc::clone(&root));
[INFO] [stdout]    |                                                      ^^^^^ help: change this to: `root`
[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: variable does not need to be mutable
[INFO] [stdout]    --> src/bptree.rs:389:21
[INFO] [stdout]     |
[INFO] [stdout] 389 |                 let mut node_mut  =  &mut *node.borrow_mut();
[INFO] [stdout]     |                     ----^^^^^^^^
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `QueueNode` is never constructed
[INFO] [stdout]  --> src/queue.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | struct QueueNode<T: Display> {
[INFO] [stdout]   |        ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Queue` is never constructed
[INFO] [stdout]  --> src/queue.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 8 | struct Queue<T: Display> {
[INFO] [stdout]   |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `enqueue`, `dequeue`, and `show_queue` are never used
[INFO] [stdout]   --> src/queue.rs:13:8
[INFO] [stdout]    |
[INFO] [stdout] 12 | impl<T: Display> Queue<T> {
[INFO] [stdout]    | ------------------------- methods in this implementation
[INFO] [stdout] 13 |     fn enqueue(&mut self, value: T) -> () {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 24 |     fn dequeue(&mut self) -> Option<T>{
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 33 |     fn show_queue(&self) {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `TreeNode` is never constructed
[INFO] [stdout]  --> src/bst.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | struct TreeNode<T: Display + PartialOrd>{
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Tree` is never constructed
[INFO] [stdout]  --> src/bst.rs:9:8
[INFO] [stdout]   |
[INFO] [stdout] 9 | struct Tree<T: Display + PartialOrd>{
[INFO] [stdout]   |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `insert`, `inner_insert`, `print_in_order`, and `inner_print` are never used
[INFO] [stdout]   --> src/bst.rs:14:12
[INFO] [stdout]    |
[INFO] [stdout] 13 | impl<T: Display + PartialOrd> Tree<T>{
[INFO] [stdout]    | ------------------------------------- associated items in this implementation
[INFO] [stdout] 14 |     pub fn insert(&mut self, value: T){
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 17 |     fn inner_insert(node: &mut Option<Box<TreeNode<T>>>, value: T){
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 32 |     pub fn print_in_order(&self) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 37 |     fn inner_print(node: &Option<Box<TreeNode<T>>>) { match node {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `LEAF_T` is never used
[INFO] [stdout]  --> src/bptree.rs:5:7
[INFO] [stdout]   |
[INFO] [stdout] 5 | const LEAF_T: u8 = 3;
[INFO] [stdout]   |       ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `INTERNAL_T` is never used
[INFO] [stdout]  --> src/bptree.rs:6:7
[INFO] [stdout]   |
[INFO] [stdout] 6 | const INTERNAL_T: u8 = 4;
[INFO] [stdout]   |       ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `NodeRef` is never used
[INFO] [stdout]  --> src/bptree.rs:7:6
[INFO] [stdout]   |
[INFO] [stdout] 7 | type NodeRef<T> = Rc<RefCell<Node<T>>>;
[INFO] [stdout]   |      ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `BPlusTree` is never constructed
[INFO] [stdout]  --> src/bptree.rs:9:12
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub struct BPlusTree<T: Display + PartialOrd>{
[INFO] [stdout]   |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Node` is never constructed
[INFO] [stdout]   --> src/bptree.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub struct Node<T: Display + PartialOrd>{
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `NodeType` is never used
[INFO] [stdout]   --> src/bptree.rs:17:10
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub enum NodeType<T: Display + PartialOrd>{
[INFO] [stdout]    |          ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new_node`, `is_full`, and `split_child` are never used
[INFO] [stdout]   --> src/bptree.rs:23:12
[INFO] [stdout]    |
[INFO] [stdout] 22 | impl<T: Display + PartialOrd> Node<T>{
[INFO] [stdout]    | ------------------------------------- associated items in this implementation
[INFO] [stdout] 23 |     pub fn new_node(t: u8, is_leaf: bool) -> NodeRef<T>{
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 35 |     fn is_full(&self) -> bool { 
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 38 |     fn split_child(&mut self, children_index: usize){
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple associated items are never used
[INFO] [stdout]    --> src/bptree.rs:75:12
[INFO] [stdout]     |
[INFO] [stdout]  74 | impl<T: Display + PartialOrd> BPlusTree<T>{
[INFO] [stdout]     | ------------------------------------------ associated items in this implementation
[INFO] [stdout]  75 |     pub fn new() -> Self{
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout]  78 |     pub fn insert(&mut self, key: u64, value: T) -> bool{
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 106 |     fn insert_non_full(node: &mut NodeRef<T>, key: u64, value: T) -> bool{
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 150 |     pub fn search(&self, key: u64) -> Option<(NodeRef<T>, usize)>{
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 156 |     fn search_in(node: NodeRef<T>, key: u64) -> Option<(NodeRef<T>, usize)>{
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 181 |     pub fn print_recursive(&self) {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 187 |     fn print_recursively(node: &NodeRef<T>, level: usize){
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 200 |     fn borrow_or_merge(node: NodeRef<T>, index: usize) -> bool{
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 237 |     fn borrow_from_left(padre: NodeRef<T>, hijo: NodeRef<T>, izq: NodeRef<T>, index: usize){
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 257 |     fn borrow_from_right(padre:NodeRef<T>, hijo:NodeRef<T>, der:NodeRef<T>, index: usize){
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 276 |     fn merge_from_right(padre: NodeRef<T>, hijo: NodeRef<T>, der: NodeRef<T>, index: usize) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 301 |     pub fn delete(&mut self, key: u64){
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 322 |     fn delete_in(node_rc: NodeRef<T>, key: u64){
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 365 |     pub fn update(&self, key: u64, record: T){
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 375 |     fn update_in(node: NodeRef<T>, key: u64, record: T){
[INFO] [stdout]     |        ^^^^^^^^^
[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/bptree.rs:191:9
[INFO] [stdout]     |
[INFO] [stdout] 191 | /         match &node_ref.node_type {
[INFO] [stdout] 192 | |             NodeType::Internal{children} => {
[INFO] [stdout] 193 | |                 for child in children {
[INFO] [stdout] 194 | |                     Self::print_recursively(&Rc::clone(child), level + 1);
[INFO] [stdout] ...   |
[INFO] [stdout] 197 | |             _ => {}
[INFO] [stdout] 198 | |         }
[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] 191 ~         if let NodeType::Internal{children} = &node_ref.node_type {
[INFO] [stdout] 192 +             for child in children {
[INFO] [stdout] 193 +                 Self::print_recursively(&Rc::clone(child), level + 1);
[INFO] [stdout] 194 +             }
[INFO] [stdout] 195 +         }
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded unit return type
[INFO] [stdout]   --> src/queue.rs:13:36
[INFO] [stdout]    |
[INFO] [stdout] 13 |     fn enqueue(&mut self, value: T) -> () {
[INFO] [stdout]    |                                    ^^^^^^ help: remove the `-> ()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_unit
[INFO] [stdout]    = note: `#[warn(clippy::unused_unit)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this boolean expression can be simplified
[INFO] [stdout]    --> src/bptree.rs:222:12
[INFO] [stdout]     |
[INFO] [stdout] 222 |         if !has_left.is_none() && is_left_empty {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^ help: try: `has_left.is_some()`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#nonminimal_bool
[INFO] [stdout]     = note: `#[warn(clippy::nonminimal_bool)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this boolean expression can be simplified
[INFO] [stdout]    --> src/bptree.rs:225:19
[INFO] [stdout]     |
[INFO] [stdout] 225 |         } else if !has_right.is_none() && is_right_empty {
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^^^^^^^ help: try: `has_right.is_some()`
[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: called `unwrap` on `has_left` after checking its variant with `is_none`
[INFO] [stdout]    --> src/bptree.rs:223:70
[INFO] [stdout]     |
[INFO] [stdout] 222 |         if !has_left.is_none() && is_left_empty {
[INFO] [stdout]     |             ------------------ the check is happening here
[INFO] [stdout] 223 |             Self::borrow_from_left(Rc::clone(&node), child.unwrap(), has_left.unwrap(), index);
[INFO] [stdout]     |                                                                      ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: try using `if let` or `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: unneeded `return` statement
[INFO] [stdout]   --> src/bst.rs:38:21
[INFO] [stdout]    |
[INFO] [stdout] 38 |             None => return,
[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: replace `return` with a unit value
[INFO] [stdout]    |
[INFO] [stdout] 38 -             None => return,
[INFO] [stdout] 38 +             None => (),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this expression creates a reference which is immediately dereferenced by the compiler
[INFO] [stdout]    --> src/bptree.rs:303:37
[INFO] [stdout]     |
[INFO] [stdout] 303 |             Some(node) => Rc::clone(&node),
[INFO] [stdout]     |                                     ^^^^^ help: change this to: `node`
[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: using `clone` on type `u64` which implements the `Copy` trait
[INFO] [stdout]   --> src/bptree.rs:54:62
[INFO] [stdout]    |
[INFO] [stdout] 54 | ...                   self.keys.insert(children_index, second_mut.keys[0].clone());
[INFO] [stdout]    |                                                        ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try removing the `clone` call: `second_mut.keys[0]`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_on_copy
[INFO] [stdout]    = note: `#[warn(clippy::clone_on_copy)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this expression creates a reference which is immediately dereferenced by the compiler
[INFO] [stdout]   --> src/bptree.rs:96:54
[INFO] [stdout]    |
[INFO] [stdout] 96 |                         children.insert(0, Rc::clone(&root));
[INFO] [stdout]    |                                                      ^^^^^ help: change this to: `root`
[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: this expression creates a reference which is immediately dereferenced by the compiler
[INFO] [stdout]    --> src/bptree.rs:372:35
[INFO] [stdout]     |
[INFO] [stdout] 372 |         Self::update_in(Rc::clone(&root_rc), key, record);
[INFO] [stdout]     |                                   ^^^^^^^^ help: change this to: `root_rc`
[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: you seem to be trying to use `match` for destructuring a single pattern. Consider using `if let`
[INFO] [stdout]    --> src/bptree.rs:191:9
[INFO] [stdout]     |
[INFO] [stdout] 191 | /         match &node_ref.node_type {
[INFO] [stdout] 192 | |             NodeType::Internal{children} => {
[INFO] [stdout] 193 | |                 for child in children {
[INFO] [stdout] 194 | |                     Self::print_recursively(&Rc::clone(child), level + 1);
[INFO] [stdout] ...   |
[INFO] [stdout] 197 | |             _ => {}
[INFO] [stdout] 198 | |         }
[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] 191 ~         if let NodeType::Internal{children} = &node_ref.node_type {
[INFO] [stdout] 192 +             for child in children {
[INFO] [stdout] 193 +                 Self::print_recursively(&Rc::clone(child), level + 1);
[INFO] [stdout] 194 +             }
[INFO] [stdout] 195 +         }
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this boolean expression can be simplified
[INFO] [stdout]    --> src/bptree.rs:222:12
[INFO] [stdout]     |
[INFO] [stdout] 222 |         if !has_left.is_none() && is_left_empty {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^ help: try: `has_left.is_some()`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#nonminimal_bool
[INFO] [stdout]     = note: `#[warn(clippy::nonminimal_bool)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this boolean expression can be simplified
[INFO] [stdout]    --> src/bptree.rs:225:19
[INFO] [stdout]     |
[INFO] [stdout] 225 |         } else if !has_right.is_none() && is_right_empty {
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^^^^^^^ help: try: `has_right.is_some()`
[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: called `unwrap` on `has_left` after checking its variant with `is_none`
[INFO] [stdout]    --> src/bptree.rs:223:70
[INFO] [stdout]     |
[INFO] [stdout] 222 |         if !has_left.is_none() && is_left_empty {
[INFO] [stdout]     |             ------------------ the check is happening here
[INFO] [stdout] 223 |             Self::borrow_from_left(Rc::clone(&node), child.unwrap(), has_left.unwrap(), index);
[INFO] [stdout]     |                                                                      ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: try using `if let` or `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: this expression creates a reference which is immediately dereferenced by the compiler
[INFO] [stdout]    --> src/bptree.rs:303:37
[INFO] [stdout]     |
[INFO] [stdout] 303 |             Some(node) => Rc::clone(&node),
[INFO] [stdout]     |                                     ^^^^^ help: change this to: `node`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_borrow
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this expression creates a reference which is immediately dereferenced by the compiler
[INFO] [stdout]    --> src/bptree.rs:372:35
[INFO] [stdout]     |
[INFO] [stdout] 372 |         Self::update_in(Rc::clone(&root_rc), key, record);
[INFO] [stdout]     |                                   ^^^^^^^^ help: change this to: `root_rc`
[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] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.47s
[INFO] running `Command { std: "docker" "inspect" "c44d3271b602c67cf46f25a0189e5249ae1573d5ddae2521b9d63756287bccf7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c44d3271b602c67cf46f25a0189e5249ae1573d5ddae2521b9d63756287bccf7", kill_on_drop: false }`
[INFO] [stdout] c44d3271b602c67cf46f25a0189e5249ae1573d5ddae2521b9d63756287bccf7