[INFO] cloning repository https://github.com/Janko-dev/neural_network
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Janko-dev/neural_network" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJanko-dev%2Fneural_network", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJanko-dev%2Fneural_network'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e71d7fbf0640819119b0c70d0f170b9bd2ce4c78
[INFO] linting Janko-dev/neural_network against nightly for clippy-nonminimal_bool-denied
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJanko-dev%2Fneural_network" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/Janko-dev/neural_network
[INFO] finished tweaking git repo https://github.com/Janko-dev/neural_network
[INFO] tweaked toml for git repo https://github.com/Janko-dev/neural_network written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Janko-dev/neural_network 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/Janko-dev/neural_network already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+nightly" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded svg v0.7.2
[INFO] [stderr]   Downloaded serde_derive v1.0.186
[INFO] [stderr]   Downloaded plotlib v0.5.1
[INFO] [stderr]   Downloaded serde v1.0.186
[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] 2538ca1d8e0d505acf3c5f7d0147db15acac4274a7ea4be62a9eb15377745b84
[INFO] running `Command { std: "docker" "start" "-a" "2538ca1d8e0d505acf3c5f7d0147db15acac4274a7ea4be62a9eb15377745b84", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2538ca1d8e0d505acf3c5f7d0147db15acac4274a7ea4be62a9eb15377745b84", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2538ca1d8e0d505acf3c5f7d0147db15acac4274a7ea4be62a9eb15377745b84", kill_on_drop: false }`
[INFO] [stdout] 2538ca1d8e0d505acf3c5f7d0147db15acac4274a7ea4be62a9eb15377745b84
[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] 4d512c9c709a982f0d493503d87f2bf5bb3c0b46f2512d24b75a1dd6704af891
[INFO] running `Command { std: "docker" "start" "-a" "4d512c9c709a982f0d493503d87f2bf5bb3c0b46f2512d24b75a1dd6704af891", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.147
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling serde v1.0.186
[INFO] [stderr]     Checking svg v0.7.2
[INFO] [stderr]     Checking object v0.32.0
[INFO] [stderr]     Checking csv-core v0.1.10
[INFO] [stderr]     Checking getrandom v0.2.10
[INFO] [stderr]    Compiling cc v1.0.83
[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]    Compiling backtrace v0.3.69
[INFO] [stderr]    Compiling synstructure v0.12.6
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]     Checking csv v1.2.2
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]     Checking plotlib v0.5.1
[INFO] [stderr]     Checking neural_network v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `IndexMut` and `Index`
[INFO] [stdout]  --> src/dataframe.rs:1:31
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{error::Error, ops::{IndexMut, Index}};
[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 imports: `IndexMut` and `Index`
[INFO] [stdout]  --> src/dataframe.rs:1:31
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{error::Error, ops::{IndexMut, Index}};
[INFO] [stdout]   |                               ^^^^^^^^  ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `mat`
[INFO] [stdout]    --> src/autodiff.rs:235:37
[INFO] [stdout]     |
[INFO] [stdout] 235 |                     Operator::Unary(mat, UnaryOpType::Sum) => {
[INFO] [stdout]     |                                     ^^^ help: if this is intentional, prefix it with an underscore: `_mat`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `encoding`
[INFO] [stdout]   --> src/dataframe.rs:61:30
[INFO] [stdout]    |
[INFO] [stdout] 61 |     pub fn encode(&mut self, encoding: EncodingScheme) {
[INFO] [stdout]    |                              ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_encoding`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: implementation of inherent method `to_string(&self) -> String` for type `autodiff::Operator`
[INFO] [stdout]   --> src/autodiff.rs:36:5
[INFO] [stdout]    |
[INFO] [stdout] 36 | /     pub fn to_string(&self) -> String {
[INFO] [stdout] 37 | |         match self {
[INFO] [stdout] 38 | |             Self::Binary(_, _, BinaryOpType::Add) => "Add".to_string(),
[INFO] [stdout] 39 | |             Self::Binary(_, _, BinaryOpType::Sub) => "Sub".to_string(),
[INFO] [stdout] ...  |
[INFO] [stdout] 52 | |     } 
[INFO] [stdout]    | |_____^
[INFO] [stdout]    |
[INFO] [stdout]    = help: implement trait `Display` for type `autodiff::Operator` instead
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#inherent_to_string
[INFO] [stdout]    = note: `#[warn(clippy::inherent_to_string)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: you should consider adding a `Default` implementation for `GradMap`
[INFO] [stdout]   --> src/autodiff.rs:59:5
[INFO] [stdout]    |
[INFO] [stdout] 59 | /     pub fn new() -> Self {
[INFO] [stdout] 60 | |         Self(HashMap::new())
[INFO] [stdout] 61 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#new_without_default
[INFO] [stdout]    = note: `#[warn(clippy::new_without_default)]` on by default
[INFO] [stdout] help: try adding this
[INFO] [stdout]    |
[INFO] [stdout] 58 + impl Default for GradMap {
[INFO] [stdout] 59 +     fn default() -> Self {
[INFO] [stdout] 60 +         Self::new()
[INFO] [stdout] 61 +     }
[INFO] [stdout] 62 + }
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this expression creates a reference which is immediately dereferenced by the compiler
[INFO] [stdout]    --> src/autodiff.rs:168:49
[INFO] [stdout]     |
[INFO] [stdout] 168 |                         let lhs_grad = grad.mul(&rhs)?;
[INFO] [stdout]     |                                                 ^^^^ help: change this to: `rhs`
[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/autodiff.rs:172:49
[INFO] [stdout]     |
[INFO] [stdout] 172 |                         let rhs_grad = grad.mul(&lhs)?;
[INFO] [stdout]     |                                                 ^^^^ help: change this to: `lhs`
[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/autodiff.rs:183:101
[INFO] [stdout]     |
[INFO] [stdout] 183 |                         let lhs_grad = grad.mul(&Matrix::ones(rhs.shape(), rhs.requires_grad()).div(&rhs)?)?;
[INFO] [stdout]     |                                                                                                     ^^^^ help: change this to: `rhs`
[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/autodiff.rs:188:51
[INFO] [stdout]     |
[INFO] [stdout] 188 |                         let rhs_squared = rhs.mul(&rhs)?;
[INFO] [stdout]     |                                                   ^^^^ help: change this to: `rhs`
[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/autodiff.rs:199:106
[INFO] [stdout]     |
[INFO] [stdout] 199 | ...   let sigmoid_der = node.mul(&Matrix::ones(node.shape(), node.requires_grad()).sub(&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: unused variable: `mat`
[INFO] [stdout]    --> src/autodiff.rs:235:37
[INFO] [stdout]     |
[INFO] [stdout] 235 |                     Operator::Unary(mat, UnaryOpType::Sum) => {
[INFO] [stdout]     |                                     ^^^ help: if this is intentional, prefix it with an underscore: `_mat`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: importing legacy numeric constants
[INFO] [stdout]  --> src/matrix.rs:1:19
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{rc::Rc, usize};
[INFO] [stdout]   |                   ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = help: remove this import
[INFO] [stdout]   = note: then `usize::<CONST>` will resolve to the respective associated constant
[INFO] [stdout]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#legacy_numeric_constants
[INFO] [stdout]   = note: `#[warn(clippy::legacy_numeric_constants)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: casting integer literal to `usize` is unnecessary
[INFO] [stdout]    --> src/matrix.rs:364:36
[INFO] [stdout]     |
[INFO] [stdout] 364 |                 let shape = (rows, 1 as usize);
[INFO] [stdout]     |                                    ^^^^^^^^^^ help: try: `1_usize`
[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: the loop variable `i` is used to index `data`
[INFO] [stdout]    --> src/matrix.rs:367:26
[INFO] [stdout]     |
[INFO] [stdout] 367 |                 for i in 0..rows {
[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] 367 -                 for i in 0..rows {
[INFO] [stdout] 367 +                 for (i, <item>) in data.iter_mut().enumerate().take(rows) {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: casting integer literal to `usize` is unnecessary
[INFO] [stdout]    --> src/matrix.rs:375:30
[INFO] [stdout]     |
[INFO] [stdout] 375 |                 let shape = (1 as usize, cols);
[INFO] [stdout]     |                              ^^^^^^^^^^ help: try: `1_usize`
[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: the loop variable `j` is used to index `data`
[INFO] [stdout]    --> src/matrix.rs:378:26
[INFO] [stdout]     |
[INFO] [stdout] 378 |                 for j in 0..cols {
[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 and enumerate()
[INFO] [stdout]     |
[INFO] [stdout] 378 -                 for j in 0..cols {
[INFO] [stdout] 378 +                 for (j, <item>) in data.iter_mut().enumerate().take(cols) {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `encoding`
[INFO] [stdout]   --> src/dataframe.rs:61:30
[INFO] [stdout]    |
[INFO] [stdout] 61 |     pub fn encode(&mut self, encoding: EncodingScheme) {
[INFO] [stdout]    |                              ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_encoding`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `headers`, `data`, and `shape` are never read
[INFO] [stdout]   --> src/dataframe.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub struct DataFrame {
[INFO] [stdout]    |            --------- fields in this struct
[INFO] [stdout] 12 |     headers: Vec<String>,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 13 |     data: Vec<DFType>,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 14 |     shape: (usize, usize)
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `DataFrame` 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: an implementation of `From` is preferred since it gives you `Into<_>` for free where the reverse isn't true
[INFO] [stdout]    --> src/matrix.rs:422:1
[INFO] [stdout]     |
[INFO] [stdout] 422 | impl Into<Matrix> for Vec<f32> {
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#from_over_into
[INFO] [stdout]     = note: `#[warn(clippy::from_over_into)]` on by default
[INFO] [stdout] help: replace the `Into` implementation with `From<std::vec::Vec<f32>>`
[INFO] [stdout]     |
[INFO] [stdout] 422 ~ impl From<Vec<f32>> for Matrix {
[INFO] [stdout] 423 ~     fn from(val: Vec<f32>) -> Self {
[INFO] [stdout] 424 ~         let len = val.len();
[INFO] [stdout] 425 ~         Matrix::from_vec(val, (len, 1), false)
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: an implementation of `From` is preferred since it gives you `Into<_>` for free where the reverse isn't true
[INFO] [stdout]    --> src/matrix.rs:429:1
[INFO] [stdout]     |
[INFO] [stdout] 429 | impl Into<Matrix> for &Vec<f32> {
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#from_over_into
[INFO] [stdout] help: replace the `Into` implementation with `From<&std::vec::Vec<f32>>`
[INFO] [stdout]     |
[INFO] [stdout] 429 ~ impl From<&Vec<f32>> for Matrix {
[INFO] [stdout] 430 ~     fn from(val: &Vec<f32>) -> Self {
[INFO] [stdout] 431 ~         let len = val.len();
[INFO] [stdout] 432 ~         Matrix::from_vec(val.clone(), (len, 1), false)
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: implementation of inherent method `to_string(&self) -> String` for type `autodiff::Operator`
[INFO] [stdout]   --> src/autodiff.rs:36:5
[INFO] [stdout]    |
[INFO] [stdout] 36 | /     pub fn to_string(&self) -> String {
[INFO] [stdout] 37 | |         match self {
[INFO] [stdout] 38 | |             Self::Binary(_, _, BinaryOpType::Add) => "Add".to_string(),
[INFO] [stdout] 39 | |             Self::Binary(_, _, BinaryOpType::Sub) => "Sub".to_string(),
[INFO] [stdout] ...  |
[INFO] [stdout] 52 | |     } 
[INFO] [stdout]    | |_____^
[INFO] [stdout]    |
[INFO] [stdout]    = help: implement trait `Display` for type `autodiff::Operator` instead
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#inherent_to_string
[INFO] [stdout]    = note: `#[warn(clippy::inherent_to_string)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: an implementation of `From` is preferred since it gives you `Into<_>` for free where the reverse isn't true
[INFO] [stdout]    --> src/matrix.rs:436:1
[INFO] [stdout]     |
[INFO] [stdout] 436 | impl Into<Matrix> for Vec<Vec<f32>> {
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#from_over_into
[INFO] [stdout] help: replace the `Into` implementation with `From<std::vec::Vec<std::vec::Vec<f32>>>`
[INFO] [stdout]     |
[INFO] [stdout] 436 ~ impl From<Vec<Vec<f32>>> for Matrix {
[INFO] [stdout] 437 ~     fn from(val: Vec<Vec<f32>>) -> Self {
[INFO] [stdout] 438 ~         let rows = val.len();
[INFO] [stdout] 439 ~         let cols = if let Some(cols) = val.get(0) {
[INFO] [stdout] 440 |             cols.len()
[INFO] [stdout] ...
[INFO] [stdout] 444 |
[INFO] [stdout] 445 ~         for v in val.iter() {
[INFO] [stdout] 446 |             if v.len() == cols {
[INFO] [stdout] ...
[INFO] [stdout] 452 |         
[INFO] [stdout] 453 ~         let data = val
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: accessing first element with `self.get(0)`
[INFO] [stdout]    --> src/matrix.rs:439:40
[INFO] [stdout]     |
[INFO] [stdout] 439 |         let cols = if let Some(cols) = self.get(0) {
[INFO] [stdout]     |                                        ^^^^^^^^^^^ help: try: `self.first()`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_first
[INFO] [stdout]     = note: `#[warn(clippy::get_first)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: you should consider adding a `Default` implementation for `GradMap`
[INFO] [stdout]   --> src/autodiff.rs:59:5
[INFO] [stdout]    |
[INFO] [stdout] 59 | /     pub fn new() -> Self {
[INFO] [stdout] 60 | |         Self(HashMap::new())
[INFO] [stdout] 61 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#new_without_default
[INFO] [stdout]    = note: `#[warn(clippy::new_without_default)]` on by default
[INFO] [stdout] help: try adding this
[INFO] [stdout]    |
[INFO] [stdout] 58 + impl Default for GradMap {
[INFO] [stdout] 59 +     fn default() -> Self {
[INFO] [stdout] 60 +         Self::new()
[INFO] [stdout] 61 +     }
[INFO] [stdout] 62 + }
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: an implementation of `From` is preferred since it gives you `Into<_>` for free where the reverse isn't true
[INFO] [stdout]    --> src/matrix.rs:462:1
[INFO] [stdout]     |
[INFO] [stdout] 462 | impl Into<Matrix> for &Vec<Vec<f32>> {
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#from_over_into
[INFO] [stdout] help: replace the `Into` implementation with `From<&std::vec::Vec<std::vec::Vec<f32>>>`
[INFO] [stdout]     |
[INFO] [stdout] 462 ~ impl From<&Vec<Vec<f32>>> for Matrix {
[INFO] [stdout] 463 ~     fn from(val: &Vec<Vec<f32>>) -> Self {
[INFO] [stdout] 464 ~         let rows = val.len();
[INFO] [stdout] 465 ~         let cols = if let Some(cols) = val.get(0) {
[INFO] [stdout] 466 |             cols.len()
[INFO] [stdout] ...
[INFO] [stdout] 470 |
[INFO] [stdout] 471 ~         for v in val.iter() {
[INFO] [stdout] 472 |             if v.len() == cols {
[INFO] [stdout] ...
[INFO] [stdout] 478 |         
[INFO] [stdout] 479 ~         let data = val.clone()
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: accessing first element with `self.get(0)`
[INFO] [stdout]    --> src/matrix.rs:465:40
[INFO] [stdout]     |
[INFO] [stdout] 465 |         let cols = if let Some(cols) = self.get(0) {
[INFO] [stdout]     |                                        ^^^^^^^^^^^ help: try: `self.first()`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_first
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: writing `&Vec` instead of `&[_]` involves a new object where a slice will do
[INFO] [stdout]   --> src/neural_network.rs:61:18
[INFO] [stdout]    |
[INFO] [stdout] 61 |         x_train: &Vec<Vec<f32>>, 
[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] 61 -         x_train: &Vec<Vec<f32>>, 
[INFO] [stdout] 61 +         x_train: &[Vec<f32>], 
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this expression creates a reference which is immediately dereferenced by the compiler
[INFO] [stdout]    --> src/autodiff.rs:168:49
[INFO] [stdout]     |
[INFO] [stdout] 168 |                         let lhs_grad = grad.mul(&rhs)?;
[INFO] [stdout]     |                                                 ^^^^ help: change this to: `rhs`
[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: writing `&Vec` instead of `&[_]` involves a new object where a slice will do
[INFO] [stdout]   --> src/neural_network.rs:62:18
[INFO] [stdout]    |
[INFO] [stdout] 62 |         y_train: &Vec<f32>, 
[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] 62 -         y_train: &Vec<f32>, 
[INFO] [stdout] 62 +         y_train: &[f32], 
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this expression creates a reference which is immediately dereferenced by the compiler
[INFO] [stdout]    --> src/autodiff.rs:172:49
[INFO] [stdout]     |
[INFO] [stdout] 172 |                         let rhs_grad = grad.mul(&lhs)?;
[INFO] [stdout]     |                                                 ^^^^ help: change this to: `lhs`
[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/autodiff.rs:183:101
[INFO] [stdout]     |
[INFO] [stdout] 183 |                         let lhs_grad = grad.mul(&Matrix::ones(rhs.shape(), rhs.requires_grad()).div(&rhs)?)?;
[INFO] [stdout]     |                                                                                                     ^^^^ help: change this to: `rhs`
[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: useless conversion to the same type: `rand::seq::SliceChooseIter<'_, [usize], usize>`
[INFO] [stdout]   --> src/neural_network.rs:96:17
[INFO] [stdout]    |
[INFO] [stdout] 96 | /                 (0..training_size)
[INFO] [stdout] 97 | |                     .collect::<Vec<usize>>()
[INFO] [stdout] 98 | |                     .choose_multiple(&mut rng, batch_size)
[INFO] [stdout] 99 | |                     .into_iter()
[INFO] [stdout]    | |________________________________^
[INFO] [stdout]    |
[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 `.into_iter()`
[INFO] [stdout]    |
[INFO] [stdout] 96 ~                 (0..training_size)
[INFO] [stdout] 97 +                     .collect::<Vec<usize>>()
[INFO] [stdout] 98 +                     .choose_multiple(&mut rng, batch_size)
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this expression creates a reference which is immediately dereferenced by the compiler
[INFO] [stdout]    --> src/autodiff.rs:188:51
[INFO] [stdout]     |
[INFO] [stdout] 188 |                         let rhs_squared = rhs.mul(&rhs)?;
[INFO] [stdout]     |                                                   ^^^^ help: change this to: `rhs`
[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/autodiff.rs:199:106
[INFO] [stdout]     |
[INFO] [stdout] 199 | ...   let sigmoid_der = node.mul(&Matrix::ones(node.shape(), node.requires_grad()).sub(&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: importing legacy numeric constants
[INFO] [stdout]  --> src/matrix.rs:1:19
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{rc::Rc, usize};
[INFO] [stdout]   |                   ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = help: remove this import
[INFO] [stdout]   = note: then `usize::<CONST>` will resolve to the respective associated constant
[INFO] [stdout]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#legacy_numeric_constants
[INFO] [stdout]   = note: `#[warn(clippy::legacy_numeric_constants)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this boolean expression can be simplified
[INFO] [stdout]   --> src/dataframe.rs:77:17
[INFO] [stdout]    |
[INFO] [stdout] 77 |         assert!(!df.is_err());
[INFO] [stdout]    |                 ^^^^^^^^^^^^ help: try: `df.is_ok()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#nonminimal_bool
[INFO] [stdout]    = note: `#[warn(clippy::nonminimal_bool)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: casting integer literal to `usize` is unnecessary
[INFO] [stdout]    --> src/matrix.rs:364:36
[INFO] [stdout]     |
[INFO] [stdout] 364 |                 let shape = (rows, 1 as usize);
[INFO] [stdout]     |                                    ^^^^^^^^^^ help: try: `1_usize`
[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: the loop variable `i` is used to index `data`
[INFO] [stdout]    --> src/matrix.rs:367:26
[INFO] [stdout]     |
[INFO] [stdout] 367 |                 for i in 0..rows {
[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] 367 -                 for i in 0..rows {
[INFO] [stdout] 367 +                 for (i, <item>) in data.iter_mut().enumerate().take(rows) {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: casting integer literal to `usize` is unnecessary
[INFO] [stdout]    --> src/matrix.rs:375:30
[INFO] [stdout]     |
[INFO] [stdout] 375 |                 let shape = (1 as usize, cols);
[INFO] [stdout]     |                              ^^^^^^^^^^ help: try: `1_usize`
[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: the loop variable `j` is used to index `data`
[INFO] [stdout]    --> src/matrix.rs:378:26
[INFO] [stdout]     |
[INFO] [stdout] 378 |                 for j in 0..cols {
[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 and enumerate()
[INFO] [stdout]     |
[INFO] [stdout] 378 -                 for j in 0..cols {
[INFO] [stdout] 378 +                 for (j, <item>) in data.iter_mut().enumerate().take(cols) {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: an implementation of `From` is preferred since it gives you `Into<_>` for free where the reverse isn't true
[INFO] [stdout]    --> src/matrix.rs:422:1
[INFO] [stdout]     |
[INFO] [stdout] 422 | impl Into<Matrix> for Vec<f32> {
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#from_over_into
[INFO] [stdout]     = note: `#[warn(clippy::from_over_into)]` on by default
[INFO] [stdout] help: replace the `Into` implementation with `From<std::vec::Vec<f32>>`
[INFO] [stdout]     |
[INFO] [stdout] 422 ~ impl From<Vec<f32>> for Matrix {
[INFO] [stdout] 423 ~     fn from(val: Vec<f32>) -> Self {
[INFO] [stdout] 424 ~         let len = val.len();
[INFO] [stdout] 425 ~         Matrix::from_vec(val, (len, 1), false)
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: an implementation of `From` is preferred since it gives you `Into<_>` for free where the reverse isn't true
[INFO] [stdout]    --> src/matrix.rs:429:1
[INFO] [stdout]     |
[INFO] [stdout] 429 | impl Into<Matrix> for &Vec<f32> {
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#from_over_into
[INFO] [stdout] help: replace the `Into` implementation with `From<&std::vec::Vec<f32>>`
[INFO] [stdout]     |
[INFO] [stdout] 429 ~ impl From<&Vec<f32>> for Matrix {
[INFO] [stdout] 430 ~     fn from(val: &Vec<f32>) -> Self {
[INFO] [stdout] 431 ~         let len = val.len();
[INFO] [stdout] 432 ~         Matrix::from_vec(val.clone(), (len, 1), false)
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: an implementation of `From` is preferred since it gives you `Into<_>` for free where the reverse isn't true
[INFO] [stdout]    --> src/matrix.rs:436:1
[INFO] [stdout]     |
[INFO] [stdout] 436 | impl Into<Matrix> for Vec<Vec<f32>> {
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#from_over_into
[INFO] [stdout] help: replace the `Into` implementation with `From<std::vec::Vec<std::vec::Vec<f32>>>`
[INFO] [stdout]     |
[INFO] [stdout] 436 ~ impl From<Vec<Vec<f32>>> for Matrix {
[INFO] [stdout] 437 ~     fn from(val: Vec<Vec<f32>>) -> Self {
[INFO] [stdout] 438 ~         let rows = val.len();
[INFO] [stdout] 439 ~         let cols = if let Some(cols) = val.get(0) {
[INFO] [stdout] 440 |             cols.len()
[INFO] [stdout] ...
[INFO] [stdout] 444 |
[INFO] [stdout] 445 ~         for v in val.iter() {
[INFO] [stdout] 446 |             if v.len() == cols {
[INFO] [stdout] ...
[INFO] [stdout] 452 |         
[INFO] [stdout] 453 ~         let data = val
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: accessing first element with `self.get(0)`
[INFO] [stdout]    --> src/matrix.rs:439:40
[INFO] [stdout]     |
[INFO] [stdout] 439 |         let cols = if let Some(cols) = self.get(0) {
[INFO] [stdout]     |                                        ^^^^^^^^^^^ help: try: `self.first()`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_first
[INFO] [stdout]     = note: `#[warn(clippy::get_first)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: an implementation of `From` is preferred since it gives you `Into<_>` for free where the reverse isn't true
[INFO] [stdout]    --> src/matrix.rs:462:1
[INFO] [stdout]     |
[INFO] [stdout] 462 | impl Into<Matrix> for &Vec<Vec<f32>> {
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#from_over_into
[INFO] [stdout] help: replace the `Into` implementation with `From<&std::vec::Vec<std::vec::Vec<f32>>>`
[INFO] [stdout]     |
[INFO] [stdout] 462 ~ impl From<&Vec<Vec<f32>>> for Matrix {
[INFO] [stdout] 463 ~     fn from(val: &Vec<Vec<f32>>) -> Self {
[INFO] [stdout] 464 ~         let rows = val.len();
[INFO] [stdout] 465 ~         let cols = if let Some(cols) = val.get(0) {
[INFO] [stdout] 466 |             cols.len()
[INFO] [stdout] ...
[INFO] [stdout] 470 |
[INFO] [stdout] 471 ~         for v in val.iter() {
[INFO] [stdout] 472 |             if v.len() == cols {
[INFO] [stdout] ...
[INFO] [stdout] 478 |         
[INFO] [stdout] 479 ~         let data = val.clone()
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: accessing first element with `self.get(0)`
[INFO] [stdout]    --> src/matrix.rs:465:40
[INFO] [stdout]     |
[INFO] [stdout] 465 |         let cols = if let Some(cols) = self.get(0) {
[INFO] [stdout]     |                                        ^^^^^^^^^^^ help: try: `self.first()`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_first
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: writing `&Vec` instead of `&[_]` involves a new object where a slice will do
[INFO] [stdout]   --> src/neural_network.rs:61:18
[INFO] [stdout]    |
[INFO] [stdout] 61 |         x_train: &Vec<Vec<f32>>, 
[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] 61 -         x_train: &Vec<Vec<f32>>, 
[INFO] [stdout] 61 +         x_train: &[Vec<f32>], 
[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/neural_network.rs:62:18
[INFO] [stdout]    |
[INFO] [stdout] 62 |         y_train: &Vec<f32>, 
[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] 62 -         y_train: &Vec<f32>, 
[INFO] [stdout] 62 +         y_train: &[f32], 
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: useless conversion to the same type: `rand::seq::SliceChooseIter<'_, [usize], usize>`
[INFO] [stdout]   --> src/neural_network.rs:96:17
[INFO] [stdout]    |
[INFO] [stdout] 96 | /                 (0..training_size)
[INFO] [stdout] 97 | |                     .collect::<Vec<usize>>()
[INFO] [stdout] 98 | |                     .choose_multiple(&mut rng, batch_size)
[INFO] [stdout] 99 | |                     .into_iter()
[INFO] [stdout]    | |________________________________^
[INFO] [stdout]    |
[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 `.into_iter()`
[INFO] [stdout]    |
[INFO] [stdout] 96 ~                 (0..training_size)
[INFO] [stdout] 97 +                     .collect::<Vec<usize>>()
[INFO] [stdout] 98 +                     .choose_multiple(&mut rng, batch_size)
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Matrix`
[INFO] [stdout]  --> src/main.rs:3:26
[INFO] [stdout]   |
[INFO] [stdout] 3 | use neural_network::{NN, Matrix};
[INFO] [stdout]   |                          ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable statement
[INFO] [stdout]   --> src/main.rs:40:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |       return Ok(());
[INFO] [stdout]    |       ------------- any code following this expression is unreachable
[INFO] [stdout] ...
[INFO] [stdout] 40 | /     let x_train = vec![
[INFO] [stdout] 41 | |         vec![0., 0.],
[INFO] [stdout] 42 | |         vec![0., 1.],
[INFO] [stdout] 43 | |         vec![1., 0.],
[INFO] [stdout] 44 | |         vec![1., 1.],
[INFO] [stdout] 45 | |     ];
[INFO] [stdout]    | |______^ unreachable statement
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constants have by default a `'static` lifetime
[INFO] [stdout]   --> examples/xor/main.rs:10:18
[INFO] [stdout]    |
[INFO] [stdout] 10 | const SVG_PATH: &'static str = "examples/xor/xor_nn_loss.svg"; 
[INFO] [stdout]    |                 -^^^^^^^---- help: consider removing `'static`: `&str`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_static_lifetimes
[INFO] [stdout]    = note: `#[warn(clippy::redundant_static_lifetimes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constants have by default a `'static` lifetime
[INFO] [stdout]   --> examples/iris/main.rs:13:18
[INFO] [stdout]    |
[INFO] [stdout] 13 | const SVG_PATH: &'static str = "examples/iris/iris_nn_loss.svg"; 
[INFO] [stdout]    |                 -^^^^^^^---- help: consider removing `'static`: `&str`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_static_lifetimes
[INFO] [stdout]    = note: `#[warn(clippy::redundant_static_lifetimes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: called `map(..).flatten()` on `Iterator`
[INFO] [stdout]   --> examples/iris/main.rs:29:14
[INFO] [stdout]    |
[INFO] [stdout] 29 |               .map(|x| drop
[INFO] [stdout]    |  ______________^
[INFO] [stdout] 30 | |                 .iter()
[INFO] [stdout] 31 | |                 .map(move |&y| (x, y))
[INFO] [stdout] 32 | |             )
[INFO] [stdout] 33 | |             .flatten()
[INFO] [stdout]    | |______________________^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#map_flatten
[INFO] [stdout]    = note: `#[warn(clippy::map_flatten)]` on by default
[INFO] [stdout] help: try replacing `map` with `flat_map` and remove the `.flatten()`
[INFO] [stdout]    |
[INFO] [stdout] 29 ~             .flat_map(|x| drop
[INFO] [stdout] 30 +                 .iter()
[INFO] [stdout] 31 +                 .map(move |&y| (x, y)))
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: very complex type used. Consider factoring parts into `type` definitions
[INFO] [stdout]   --> examples/iris/main.rs:56:62
[INFO] [stdout]    |
[INFO] [stdout] 56 | fn partition_labels(table: Vec<Vec<f32>>, y_index: usize) -> Result<(Vec<Vec<f32>>, Vec<f32>), Box<dyn Error>> {
[INFO] [stdout]    |                                                              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#type_complexity
[INFO] [stdout]    = note: `#[warn(clippy::type_complexity)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the loop variable `i` is used to index `input_dataset`
[INFO] [stdout]   --> examples/iris/main.rs:87:14
[INFO] [stdout]    |
[INFO] [stdout] 87 |     for i in 45..55 {
[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] 87 -     for i in 45..55 {
[INFO] [stdout] 87 +     for (i, <item>) in input_dataset.iter().enumerate().take(55).skip(45) {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Matrix`
[INFO] [stdout]  --> src/main.rs:3:26
[INFO] [stdout]   |
[INFO] [stdout] 3 | use neural_network::{NN, Matrix};
[INFO] [stdout]   |                          ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable statement
[INFO] [stdout]   --> src/main.rs:40:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |       return Ok(());
[INFO] [stdout]    |       ------------- any code following this expression is unreachable
[INFO] [stdout] ...
[INFO] [stdout] 40 | /     let x_train = vec![
[INFO] [stdout] 41 | |         vec![0., 0.],
[INFO] [stdout] 42 | |         vec![0., 1.],
[INFO] [stdout] 43 | |         vec![1., 0.],
[INFO] [stdout] 44 | |         vec![1., 1.],
[INFO] [stdout] 45 | |     ];
[INFO] [stdout]    | |______^ unreachable statement
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.76s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: svg v0.7.2
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 4`
[INFO] running `Command { std: "docker" "inspect" "4d512c9c709a982f0d493503d87f2bf5bb3c0b46f2512d24b75a1dd6704af891", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4d512c9c709a982f0d493503d87f2bf5bb3c0b46f2512d24b75a1dd6704af891", kill_on_drop: false }`
[INFO] [stdout] 4d512c9c709a982f0d493503d87f2bf5bb3c0b46f2512d24b75a1dd6704af891