warning: useless conversion to the same type: `usize`
  --> src/main.rs:50:31
   |
50 |             r_mass: vec![0.0; usize::try_from(n_nodes).unwrap()],
   |                               ^^^^^^^^^^^^^^^^^^^^^^^^
   |
   = help: consider removing `usize::try_from()`
   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_conversion

warning: useless conversion to the same type: `usize`
  --> src/main.rs:49:31
   |
49 |             l_mass: vec![0.0; usize::try_from(n_nodes).unwrap()],
   |                               ^^^^^^^^^^^^^^^^^^^^^^^^
   |
   = help: consider removing `usize::try_from()`
   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_conversion

warning: useless conversion to the same type: `usize`
  --> src/main.rs:48:34
   |
48 |             threshold: vec![0.0; usize::try_from(n_branches).unwrap()],
   |                                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^
   |
   = help: consider removing `usize::try_from()`
   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_conversion

warning: useless conversion to the same type: `usize`
  --> src/main.rs:47:45
   |
47 |             feature: vec![String::from(""); usize::try_from(n_branches).unwrap()],
   |                                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^
   |
   = help: consider removing `usize::try_from()`
   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_conversion
   = note: `#[warn(clippy::useless_conversion)]` on by default

warning: name `HST` contains a capitalized acronym
  --> src/main.rs:26:8
   |
26 | struct HST {
   |        ^^^ help: consider making the acronym lowercase, except the initial letter: `Hst`
   |
   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#upper_case_acronyms
   = note: `#[warn(clippy::upper_case_acronyms)]` on by default

warning: fields `l_mass` and `r_mass` are never read
  --> src/main.rs:29:5
   |
26 | struct HST {
   |        --- fields in this struct
...
29 |     l_mass: Vec<f32>,
   |     ^^^^^^
30 |     r_mass: Vec<f32>,
   |     ^^^^^^
   |
   = note: `HST` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis

warning: function `right_child` is never used
  --> src/main.rs:21:4
   |
21 | fn right_child(node: u32) -> u32 {
   |    ^^^^^^^^^^^

warning: function `left_child` is never used
  --> src/main.rs:16:4
   |
16 | fn left_child(node: u32) -> u32 {
   |    ^^^^^^^^^^
   |
   = note: `#[warn(dead_code)]` on by default

warning: unused variable: `window_size`
  --> src/main.rs:79:9
   |
79 |     let window_size: u32 = 100;
   |         ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_window_size`
   |
   = note: `#[warn(unused_variables)]` on by default

warning: unused import: `std::collections::HashMap`
  --> src/main.rs:10:5
   |
10 | use std::collections::HashMap;
   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
   |
   = note: `#[warn(unused_imports)]` on by default

warning: using `clone` on type `F` which implements the `Copy` trait
   --> src/metrics/confusion.rs:150:9
    |
150 | /         self.data
151 | |             .get(label)
152 | |             .unwrap_or(&HashMap::new())
153 | |             .get(label)
154 | |             .unwrap_or(&F::zero())
155 | |             .clone()
    | |____________________^
    |
    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_on_copy
help: try dereferencing it
    |
150 ~         *self.data
151 +             .get(label)
152 +             .unwrap_or(&HashMap::new())
153 +             .get(label)
154 +             .unwrap_or(&F::zero())
    |

warning: using `clone` on type `F` which implements the `Copy` trait
   --> src/metrics/confusion.rs:146:9
    |
146 |         self.sum_col.get(label).unwrap_or(&F::zero()).clone()
    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try dereferencing it: `*self.sum_col.get(label).unwrap_or(&F::zero())`
    |
    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_on_copy
    = note: `#[warn(clippy::clone_on_copy)]` on by default

warning: this expression creates a reference which is immediately dereferenced by the compiler
  --> src/metrics/accuracy.rs:60:52
   |
60 |                     .max_by(|a, b| a.1.partial_cmp(&b.1).unwrap())
   |                                                    ^^^^ help: change this to: `b.1`
   |
   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_borrow

warning: this expression creates a reference which is immediately dereferenced by the compiler
  --> src/metrics/accuracy.rs:37:52
   |
37 |                     .max_by(|a, b| a.1.partial_cmp(&b.1).unwrap())
   |                                                    ^^^^ help: change this to: `b.1`
   |
   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_borrow

warning: this expression creates a reference which is immediately dereferenced by the compiler
   --> src/common.rs:218:52
    |
218 |                     .max_by(|a, b| a.1.partial_cmp(&b.1).unwrap())
    |                                                    ^^^^ help: change this to: `b.1`
    |
    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_borrow
    = note: `#[warn(clippy::needless_borrow)]` on by default

warning: method `from_iter` can be confused for the standard trait method `std::iter::FromIterator::from_iter`
  --> src/common.rs:77:5
   |
77 | /     pub fn from_iter<I: IntoClassifierTargetIter>(iter: I) -> Box<dyn Iterator<Item = Self>> {
78 | |         iter.into_classifier_target_iter()
79 | |     }
   | |_____^
   |
   = help: consider implementing the trait `std::iter::FromIterator` or choosing a less ambiguous method name
   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#should_implement_trait
   = note: `#[warn(clippy::should_implement_trait)]` on by default

warning: associated function `new` is never used
  --> src/metrics/accuracy.rs:12:12
   |
11 | impl<F: Float + FromPrimitive + AddAssign + SubAssign + MulAssign + DivAssign> Accuracy<F> {
   | ------------------------------------------------------------------------------------------ associated function in this implementation
12 |     pub fn new() -> Self {
   |            ^^^
   |
   = note: `#[warn(dead_code)]` on by default