[INFO] crate neuroflow 0.1.3 is already in cache
[INFO] extracting crate neuroflow 0.1.3 into work/ex/clippy-test-run/sources/stable/reg/neuroflow/0.1.3
[INFO] extracting crate neuroflow 0.1.3 into work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/neuroflow/0.1.3
[INFO] validating manifest of neuroflow-0.1.3 on toolchain stable
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of neuroflow-0.1.3 on toolchain stable+rustflags=-Dclippy::into_iter_on_array
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing neuroflow-0.1.3
[INFO] finished frobbing neuroflow-0.1.3
[INFO] frobbed toml for neuroflow-0.1.3 written to work/ex/clippy-test-run/sources/stable/reg/neuroflow/0.1.3/Cargo.toml
[INFO] started frobbing neuroflow-0.1.3
[INFO] finished frobbing neuroflow-0.1.3
[INFO] frobbed toml for neuroflow-0.1.3 written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/neuroflow/0.1.3/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] linting neuroflow-0.1.3 against stable for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-4/stable:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable/reg/neuroflow/0.1.3:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+stable" "clippy" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 2ddce67ada2ec59d3030f14a5b025116840bb0f5a75e64dffaa32fa48babd4d6
[INFO] running `"docker" "start" "-a" "2ddce67ada2ec59d3030f14a5b025116840bb0f5a75e64dffaa32fa48babd4d6"`
[INFO] [stderr]     Checking neuroflow v0.1.3 (/opt/crater/workdir)
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/data/mod.rs:82:9
[INFO] [stderr]    |
[INFO] [stderr] 82 | /         return DataSet {
[INFO] [stderr] 83 | |             x: vec![],
[INFO] [stderr] 84 | |             y: vec![],
[INFO] [stderr] 85 | |         }
[INFO] [stderr]    | |_________^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::needless_return)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] help: remove `return` as shown
[INFO] [stderr]    |
[INFO] [stderr] 82 |         DataSet {
[INFO] [stderr] 83 |             x: vec![],
[INFO] [stderr] 84 |             y: vec![],
[INFO] [stderr] 85 |         }
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/lib.rs:257:9
[INFO] [stderr]     |
[INFO] [stderr] 257 |         return nl;
[INFO] [stderr]     |         ^^^^^^^^^^ help: remove `return` as shown: `nl`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/lib.rs:310:9
[INFO] [stderr]     |
[INFO] [stderr] 310 |         return nn;
[INFO] [stderr]     |         ^^^^^^^^^^ help: remove `return` as shown: `nn`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: this `else { if .. }` block can be collapsed
[INFO] [stderr]    --> src/lib.rs:377:30
[INFO] [stderr]     |
[INFO] [stderr] 377 |                           else {
[INFO] [stderr]     |  ______________________________^
[INFO] [stderr] 378 | |                             if k == 0{
[INFO] [stderr] 379 | |                                 self.layers[j].w[i][k] += self.learn_rate * self.layers[j].delta[i];
[INFO] [stderr] 380 | |                             } else {
[INFO] [stderr] 381 | |                                 self.layers[j].w[i][k] += self.learn_rate * self.layers[j].delta[i]*self.layers[j - 1].y[k - 1];
[INFO] [stderr] 382 | |                             }
[INFO] [stderr] 383 | |                         }
[INFO] [stderr]     | |_________________________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::collapsible_if)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#collapsible_if
[INFO] [stderr] help: try
[INFO] [stderr]     |
[INFO] [stderr] 377 |                         else if k == 0{
[INFO] [stderr] 378 |     self.layers[j].w[i][k] += self.learn_rate * self.layers[j].delta[i];
[INFO] [stderr] 379 | } else {
[INFO] [stderr] 380 |     self.layers[j].w[i][k] += self.learn_rate * self.layers[j].delta[i]*self.layers[j - 1].y[k - 1];
[INFO] [stderr] 381 | }
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/data/mod.rs:82:9
[INFO] [stderr]    |
[INFO] [stderr] 82 | /         return DataSet {
[INFO] [stderr] 83 | |             x: vec![],
[INFO] [stderr] 84 | |             y: vec![],
[INFO] [stderr] 85 | |         }
[INFO] [stderr]    | |_________^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::needless_return)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] help: remove `return` as shown
[INFO] [stderr]    |
[INFO] [stderr] 82 |         DataSet {
[INFO] [stderr] 83 |             x: vec![],
[INFO] [stderr] 84 |             y: vec![],
[INFO] [stderr] 85 |         }
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/lib.rs:257:9
[INFO] [stderr]     |
[INFO] [stderr] 257 |         return nl;
[INFO] [stderr]     |         ^^^^^^^^^^ help: remove `return` as shown: `nl`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/lib.rs:310:9
[INFO] [stderr]     |
[INFO] [stderr] 310 |         return nn;
[INFO] [stderr]     |         ^^^^^^^^^^ help: remove `return` as shown: `nn`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: this `else { if .. }` block can be collapsed
[INFO] [stderr]    --> src/lib.rs:377:30
[INFO] [stderr]     |
[INFO] [stderr] 377 |                           else {
[INFO] [stderr]     |  ______________________________^
[INFO] [stderr] 378 | |                             if k == 0{
[INFO] [stderr] 379 | |                                 self.layers[j].w[i][k] += self.learn_rate * self.layers[j].delta[i];
[INFO] [stderr] 380 | |                             } else {
[INFO] [stderr] 381 | |                                 self.layers[j].w[i][k] += self.learn_rate * self.layers[j].delta[i]*self.layers[j - 1].y[k - 1];
[INFO] [stderr] 382 | |                             }
[INFO] [stderr] 383 | |                         }
[INFO] [stderr]     | |_________________________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::collapsible_if)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#collapsible_if
[INFO] [stderr] help: try
[INFO] [stderr]     |
[INFO] [stderr] 377 |                         else if k == 0{
[INFO] [stderr] 378 |     self.layers[j].w[i][k] += self.learn_rate * self.layers[j].delta[i];
[INFO] [stderr] 379 | } else {
[INFO] [stderr] 380 |     self.layers[j].w[i][k] += self.learn_rate * self.layers[j].delta[i]*self.layers[j - 1].y[k - 1];
[INFO] [stderr] 381 | }
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `nn`
[INFO] [stderr]   --> src/estimators/mod.rs:26:12
[INFO] [stderr]    |
[INFO] [stderr] 26 | pub fn OBS(nn: &super::FeedForward) {
[INFO] [stderr]    |            ^^ help: consider using `_nn` instead
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `obj`
[INFO] [stderr]   --> src/io/mod.rs:85:37
[INFO] [stderr]    |
[INFO] [stderr] 85 | pub fn to_json<T: serde::Serialize>(obj: T) {
[INFO] [stderr]    |                                     ^^^ help: consider using `_obj` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `s`
[INFO] [stderr]   --> src/io/mod.rs:90:18
[INFO] [stderr]    |
[INFO] [stderr] 90 | pub fn from_json(s: &str){
[INFO] [stderr]    |                  ^ help: consider using `_s` instead
[INFO] [stderr] 
[INFO] [stderr] warning: casting i32 to f64 may become silently lossy if types change
[INFO] [stderr]   --> src/estimators/mod.rs:18:5
[INFO] [stderr]    |
[INFO] [stderr] 18 |     (s as f64) / allowed_error
[INFO] [stderr]    |     ^^^^^^^^^^ help: try: `f64::from(s)`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::cast_lossless)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: trait `Extractable` has a `len` method but no (possibly inherited) `is_empty` method
[INFO] [stderr]   --> src/data/mod.rs:25:1
[INFO] [stderr]    |
[INFO] [stderr] 25 | / pub trait Extractable {
[INFO] [stderr] 26 | |     /// Get random element from set
[INFO] [stderr] 27 | |     ///
[INFO] [stderr] 28 | |     /// * `return` - tuple of two links on vectors.
[INFO] [stderr] ...  |
[INFO] [stderr] 40 | |     fn len(&self) -> usize;
[INFO] [stderr] 41 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::len_without_is_empty)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_without_is_empty
[INFO] [stderr] 
[INFO] [stderr] warning: you should consider deriving a `Default` implementation for `data::DataSet`
[INFO] [stderr]   --> src/data/mod.rs:81:5
[INFO] [stderr]    |
[INFO] [stderr] 81 | /     pub fn new() -> DataSet{
[INFO] [stderr] 82 | |         return DataSet {
[INFO] [stderr] 83 | |             x: vec![],
[INFO] [stderr] 84 | |             y: vec![],
[INFO] [stderr] 85 | |         }
[INFO] [stderr] 86 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::new_without_default_derive)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#new_without_default_derive
[INFO] [stderr] help: try this
[INFO] [stderr]    |
[INFO] [stderr] 66 | #[derive(Default)]
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: the loop variable `j` is used to index `sum_x`
[INFO] [stderr]    --> src/data/mod.rs:168:22
[INFO] [stderr]     |
[INFO] [stderr] 168 |             for j in 0..self.x[i].len(){
[INFO] [stderr]     |                      ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::needless_range_loop)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_range_loop
[INFO] [stderr] help: consider using an iterator
[INFO] [stderr]     |
[INFO] [stderr] 168 |             for (j, <item>) in sum_x.iter_mut().enumerate().take(self.x[i].len()){
[INFO] [stderr]     |                 ^^^^^^^^^^^    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: the loop variable `j` is used to index `sum_y`
[INFO] [stderr]    --> src/data/mod.rs:174:22
[INFO] [stderr]     |
[INFO] [stderr] 174 |             for j in 0..self.y[i].len(){
[INFO] [stderr]     |                      ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_range_loop
[INFO] [stderr] help: consider using an iterator
[INFO] [stderr]     |
[INFO] [stderr] 174 |             for (j, <item>) in sum_y.iter_mut().enumerate().take(self.y[i].len()){
[INFO] [stderr]     |                 ^^^^^^^^^^^    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: the loop variable `i` is only used to index `mean_x`.
[INFO] [stderr]    --> src/data/mod.rs:204:18
[INFO] [stderr]     |
[INFO] [stderr] 204 |         for i in 0..self.x[0].len(){
[INFO] [stderr]     |                  ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_range_loop
[INFO] [stderr] help: consider using an iterator
[INFO] [stderr]     |
[INFO] [stderr] 204 |         for <item> in mean_x.iter_mut().take(self.x[0].len()){
[INFO] [stderr]     |             ^^^^^^    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: the loop variable `i` is only used to index `mean_y`.
[INFO] [stderr]    --> src/data/mod.rs:209:18
[INFO] [stderr]     |
[INFO] [stderr] 209 |         for i in 0..self.y[0].len(){
[INFO] [stderr]     |                  ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_range_loop
[INFO] [stderr] help: consider using an iterator
[INFO] [stderr]     |
[INFO] [stderr] 209 |         for <item> in mean_y.iter_mut().take(self.y[0].len()){
[INFO] [stderr]     |             ^^^^^^    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: explicit lifetimes given in parameter types where they could be elided (or replaced with `'_` if needed by type declaration)
[INFO] [stderr]   --> src/io/mod.rs:74:1
[INFO] [stderr]    |
[INFO] [stderr] 74 | / pub fn load<'b, T>(file_path: &'b str) -> Result<T, ErrorKind> where for<'de> T: serde::Deserialize<'de>{
[INFO] [stderr] 75 | |     let file = File::open(file_path).map_err(ErrorKind::IO)?;
[INFO] [stderr] 76 | |     let mut buf = BufReader::new(file);
[INFO] [stderr] 77 | | 
[INFO] [stderr] ...  |
[INFO] [stderr] 80 | |     Ok(nn)
[INFO] [stderr] 81 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::needless_lifetimes)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_lifetimes
[INFO] [stderr] 
[INFO] [stderr] warning: an inclusive range would be more readable
[INFO] [stderr]    --> src/lib.rs:251:22
[INFO] [stderr]     |
[INFO] [stderr] 251 |             for _ in 0..input + 1{
[INFO] [stderr]     |                      ^^^^^^^^^^^^ help: use: `0..=input`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::range_plus_one)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#range_plus_one
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]    --> src/lib.rs:313:30
[INFO] [stderr]     |
[INFO] [stderr] 313 |     fn forward(&mut self, x: &Vec<f64>){
[INFO] [stderr]     |                              ^^^^^^^^^ help: change this to: `&[f64]`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::ptr_arg)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr] warning: the loop variable `k` is used to index `x`
[INFO] [stderr]    --> src/lib.rs:320:30
[INFO] [stderr]     |
[INFO] [stderr] 320 |                     for k in 0..x.len(){
[INFO] [stderr]     |                              ^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_range_loop
[INFO] [stderr] help: consider using an iterator
[INFO] [stderr]     |
[INFO] [stderr] 320 |                     for (k, <item>) in x.iter().enumerate(){
[INFO] [stderr]     |                         ^^^^^^^^^^^    ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]    --> src/lib.rs:350:31
[INFO] [stderr]     |
[INFO] [stderr] 350 |     fn backward(&mut self, d: &Vec<f64>){
[INFO] [stderr]     |                               ^^^^^^^^^ help: change this to: `&[f64]`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr] warning: the loop variable `i` is used to index `d`
[INFO] [stderr]    --> src/lib.rs:355:26
[INFO] [stderr]     |
[INFO] [stderr] 355 |                 for i in 0..self.layers[j].y.len(){
[INFO] [stderr]     |                          ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_range_loop
[INFO] [stderr] help: consider using an iterator
[INFO] [stderr]     |
[INFO] [stderr] 355 |                 for (i, <item>) in d.iter().enumerate().take(self.layers[j].y.len()){
[INFO] [stderr]     |                     ^^^^^^^^^^^    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]    --> src/lib.rs:370:29
[INFO] [stderr]     |
[INFO] [stderr] 370 |     fn update(&mut self, x: &Vec<f64>){
[INFO] [stderr]     |                             ^^^^^^^^^ help: change this to: `&[f64]`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr] warning: the loop variable `k` is used to index `x`
[INFO] [stderr]    --> src/lib.rs:373:26
[INFO] [stderr]     |
[INFO] [stderr] 373 |                 for k in 0..self.layers[j].w[i].len(){
[INFO] [stderr]     |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_range_loop
[INFO] [stderr] help: consider using an iterator
[INFO] [stderr]     |
[INFO] [stderr] 373 |                 for (k, <item>) in x.iter().enumerate().take(self.layers[j].w[i].len()){
[INFO] [stderr]     |                     ^^^^^^^^^^^    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `nn`
[INFO] [stderr]   --> src/estimators/mod.rs:26:12
[INFO] [stderr]    |
[INFO] [stderr] 26 | pub fn OBS(nn: &super::FeedForward) {
[INFO] [stderr]    |            ^^ help: consider using `_nn` instead
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `obj`
[INFO] [stderr]   --> src/io/mod.rs:85:37
[INFO] [stderr]    |
[INFO] [stderr] 85 | pub fn to_json<T: serde::Serialize>(obj: T) {
[INFO] [stderr]    |                                     ^^^ help: consider using `_obj` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `s`
[INFO] [stderr]   --> src/io/mod.rs:90:18
[INFO] [stderr]    |
[INFO] [stderr] 90 | pub fn from_json(s: &str){
[INFO] [stderr]    |                  ^ help: consider using `_s` instead
[INFO] [stderr] 
[INFO] [stderr] warning: useless use of `format!`
[INFO] [stderr]    --> src/lib.rs:551:31
[INFO] [stderr]     |
[INFO] [stderr] 551 |         let mut buf: String = format!("**Induced field**\n");
[INFO] [stderr]     |                               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using .to_string(): `"**Induced field**\n".to_string()`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::useless_format)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_format
[INFO] [stderr] 
[INFO] [stderr] warning: casting i32 to f64 may become silently lossy if types change
[INFO] [stderr]   --> src/estimators/mod.rs:18:5
[INFO] [stderr]    |
[INFO] [stderr] 18 |     (s as f64) / allowed_error
[INFO] [stderr]    |     ^^^^^^^^^^ help: try: `f64::from(s)`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::cast_lossless)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: trait `Extractable` has a `len` method but no (possibly inherited) `is_empty` method
[INFO] [stderr]   --> src/data/mod.rs:25:1
[INFO] [stderr]    |
[INFO] [stderr] 25 | / pub trait Extractable {
[INFO] [stderr] 26 | |     /// Get random element from set
[INFO] [stderr] 27 | |     ///
[INFO] [stderr] 28 | |     /// * `return` - tuple of two links on vectors.
[INFO] [stderr] ...  |
[INFO] [stderr] 40 | |     fn len(&self) -> usize;
[INFO] [stderr] 41 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::len_without_is_empty)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_without_is_empty
[INFO] [stderr] 
[INFO] [stderr] warning: you should consider deriving a `Default` implementation for `data::DataSet`
[INFO] [stderr]   --> src/data/mod.rs:81:5
[INFO] [stderr]    |
[INFO] [stderr] 81 | /     pub fn new() -> DataSet{
[INFO] [stderr] 82 | |         return DataSet {
[INFO] [stderr] 83 | |             x: vec![],
[INFO] [stderr] 84 | |             y: vec![],
[INFO] [stderr] 85 | |         }
[INFO] [stderr] 86 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::new_without_default_derive)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#new_without_default_derive
[INFO] [stderr] help: try this
[INFO] [stderr]    |
[INFO] [stderr] 66 | #[derive(Default)]
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: the loop variable `j` is used to index `sum_x`
[INFO] [stderr]    --> src/data/mod.rs:168:22
[INFO] [stderr]     |
[INFO] [stderr] 168 |             for j in 0..self.x[i].len(){
[INFO] [stderr]     |                      ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::needless_range_loop)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_range_loop
[INFO] [stderr] help: consider using an iterator
[INFO] [stderr]     |
[INFO] [stderr] 168 |             for (j, <item>) in sum_x.iter_mut().enumerate().take(self.x[i].len()){
[INFO] [stderr]     |                 ^^^^^^^^^^^    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: the loop variable `j` is used to index `sum_y`
[INFO] [stderr]    --> src/data/mod.rs:174:22
[INFO] [stderr]     |
[INFO] [stderr] 174 |             for j in 0..self.y[i].len(){
[INFO] [stderr]     |                      ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_range_loop
[INFO] [stderr] help: consider using an iterator
[INFO] [stderr]     |
[INFO] [stderr] 174 |             for (j, <item>) in sum_y.iter_mut().enumerate().take(self.y[i].len()){
[INFO] [stderr]     |                 ^^^^^^^^^^^    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: the loop variable `i` is only used to index `mean_x`.
[INFO] [stderr]    --> src/data/mod.rs:204:18
[INFO] [stderr]     |
[INFO] [stderr] 204 |         for i in 0..self.x[0].len(){
[INFO] [stderr]     |                  ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_range_loop
[INFO] [stderr] help: consider using an iterator
[INFO] [stderr]     |
[INFO] [stderr] 204 |         for <item> in mean_x.iter_mut().take(self.x[0].len()){
[INFO] [stderr]     |             ^^^^^^    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: the loop variable `i` is only used to index `mean_y`.
[INFO] [stderr]    --> src/data/mod.rs:209:18
[INFO] [stderr]     |
[INFO] [stderr] 209 |         for i in 0..self.y[0].len(){
[INFO] [stderr]     |                  ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_range_loop
[INFO] [stderr] help: consider using an iterator
[INFO] [stderr]     |
[INFO] [stderr] 209 |         for <item> in mean_y.iter_mut().take(self.y[0].len()){
[INFO] [stderr]     |             ^^^^^^    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: explicit lifetimes given in parameter types where they could be elided (or replaced with `'_` if needed by type declaration)
[INFO] [stderr]   --> src/io/mod.rs:74:1
[INFO] [stderr]    |
[INFO] [stderr] 74 | / pub fn load<'b, T>(file_path: &'b str) -> Result<T, ErrorKind> where for<'de> T: serde::Deserialize<'de>{
[INFO] [stderr] 75 | |     let file = File::open(file_path).map_err(ErrorKind::IO)?;
[INFO] [stderr] 76 | |     let mut buf = BufReader::new(file);
[INFO] [stderr] 77 | | 
[INFO] [stderr] ...  |
[INFO] [stderr] 80 | |     Ok(nn)
[INFO] [stderr] 81 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::needless_lifetimes)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_lifetimes
[INFO] [stderr] 
[INFO] [stderr] warning: an inclusive range would be more readable
[INFO] [stderr]    --> src/lib.rs:251:22
[INFO] [stderr]     |
[INFO] [stderr] 251 |             for _ in 0..input + 1{
[INFO] [stderr]     |                      ^^^^^^^^^^^^ help: use: `0..=input`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::range_plus_one)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#range_plus_one
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]    --> src/lib.rs:313:30
[INFO] [stderr]     |
[INFO] [stderr] 313 |     fn forward(&mut self, x: &Vec<f64>){
[INFO] [stderr]     |                              ^^^^^^^^^ help: change this to: `&[f64]`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::ptr_arg)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr] warning: the loop variable `k` is used to index `x`
[INFO] [stderr]    --> src/lib.rs:320:30
[INFO] [stderr]     |
[INFO] [stderr] 320 |                     for k in 0..x.len(){
[INFO] [stderr]     |                              ^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_range_loop
[INFO] [stderr] help: consider using an iterator
[INFO] [stderr]     |
[INFO] [stderr] 320 |                     for (k, <item>) in x.iter().enumerate(){
[INFO] [stderr]     |                         ^^^^^^^^^^^    ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]    --> src/lib.rs:350:31
[INFO] [stderr]     |
[INFO] [stderr] 350 |     fn backward(&mut self, d: &Vec<f64>){
[INFO] [stderr]     |                               ^^^^^^^^^ help: change this to: `&[f64]`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr] warning: the loop variable `i` is used to index `d`
[INFO] [stderr]    --> src/lib.rs:355:26
[INFO] [stderr]     |
[INFO] [stderr] 355 |                 for i in 0..self.layers[j].y.len(){
[INFO] [stderr]     |                          ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_range_loop
[INFO] [stderr] help: consider using an iterator
[INFO] [stderr]     |
[INFO] [stderr] 355 |                 for (i, <item>) in d.iter().enumerate().take(self.layers[j].y.len()){
[INFO] [stderr]     |                     ^^^^^^^^^^^    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]    --> src/lib.rs:370:29
[INFO] [stderr]     |
[INFO] [stderr] 370 |     fn update(&mut self, x: &Vec<f64>){
[INFO] [stderr]     |                             ^^^^^^^^^ help: change this to: `&[f64]`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr] warning: the loop variable `k` is used to index `x`
[INFO] [stderr]    --> src/lib.rs:373:26
[INFO] [stderr]     |
[INFO] [stderr] 373 |                 for k in 0..self.layers[j].w[i].len(){
[INFO] [stderr]     |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_range_loop
[INFO] [stderr] help: consider using an iterator
[INFO] [stderr]     |
[INFO] [stderr] 373 |                 for (k, <item>) in x.iter().enumerate().take(self.layers[j].w[i].len()){
[INFO] [stderr]     |                     ^^^^^^^^^^^    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: useless use of `format!`
[INFO] [stderr]    --> src/lib.rs:551:31
[INFO] [stderr]     |
[INFO] [stderr] 551 |         let mut buf: String = format!("**Induced field**\n");
[INFO] [stderr]     |                               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using .to_string(): `"**Induced field**\n".to_string()`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::useless_format)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_format
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.87s
[INFO] running `"docker" "inspect" "2ddce67ada2ec59d3030f14a5b025116840bb0f5a75e64dffaa32fa48babd4d6"`
[INFO] running `"docker" "rm" "-f" "2ddce67ada2ec59d3030f14a5b025116840bb0f5a75e64dffaa32fa48babd4d6"`
[INFO] [stdout] 2ddce67ada2ec59d3030f14a5b025116840bb0f5a75e64dffaa32fa48babd4d6