[INFO] updating cached repository schafer14/nn
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/schafer14/nn
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/schafer14/nn" "work/ex/clippy-test-run/sources/stable/gh/schafer14/nn"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable/gh/schafer14/nn'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/schafer14/nn" "work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/schafer14/nn"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/schafer14/nn'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] f48062a6158b7a7a747028fb27d1965a02c62912
[INFO] sha for GitHub repo schafer14/nn: f48062a6158b7a7a747028fb27d1965a02c62912
[INFO] validating manifest of schafer14/nn 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 schafer14/nn 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 schafer14/nn
[INFO] finished frobbing schafer14/nn
[INFO] frobbed toml for schafer14/nn written to work/ex/clippy-test-run/sources/stable/gh/schafer14/nn/Cargo.toml
[INFO] started frobbing schafer14/nn
[INFO] finished frobbing schafer14/nn
[INFO] frobbed toml for schafer14/nn written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/schafer14/nn/Cargo.toml
[INFO] crate schafer14/nn has a lockfile. skipping
[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 schafer14/nn 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/gh/schafer14/nn:/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] a6821d0e080b30d7d0a4d2a7d4e3c60463a1833183b97351d6741e1197fec339
[INFO] running `"docker" "start" "-a" "a6821d0e080b30d7d0a4d2a7d4e3c60463a1833183b97351d6741e1197fec339"`
[INFO] [stderr]     Checking rand v0.3.14
[INFO] [stderr]     Checking nn v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/main.rs:31:13
[INFO] [stderr]    |
[INFO] [stderr] 31 |         Network { layers: layers }
[INFO] [stderr]    |                   ^^^^^^^^^^^^^^ help: replace it with: `layers`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::redundant_field_names)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]    --> src/main.rs:125:11
[INFO] [stderr]     |
[INFO] [stderr] 125 |         Layer { neurons: neurons }
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^ help: replace it with: `neurons`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]    --> src/main.rs:149:12
[INFO] [stderr]     |
[INFO] [stderr] 149 |         Neuron { weights: weights, output: None, inputs: Vec::new() }
[INFO] [stderr]     |                  ^^^^^^^^^^^^^^^^ help: replace it with: `weights`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/main.rs:31:13
[INFO] [stderr]    |
[INFO] [stderr] 31 |         Network { layers: layers }
[INFO] [stderr]    |                   ^^^^^^^^^^^^^^ help: replace it with: `layers`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::redundant_field_names)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]    --> src/main.rs:125:11
[INFO] [stderr]     |
[INFO] [stderr] 125 |         Layer { neurons: neurons }
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^ help: replace it with: `neurons`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]    --> src/main.rs:149:12
[INFO] [stderr]     |
[INFO] [stderr] 149 |         Neuron { weights: weights, output: None, inputs: Vec::new() }
[INFO] [stderr]     |                  ^^^^^^^^^^^^^^^^ help: replace it with: `weights`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[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/main.rs:34:37
[INFO] [stderr]    |
[INFO] [stderr] 34 |     fn feed_forward(&mut self, inputs: &Vec<f64>) -> 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: `ref` on an entire `let` pattern is discouraged, take a reference with `&` instead
[INFO] [stderr]   --> src/main.rs:41:8
[INFO] [stderr]    |
[INFO] [stderr] 41 |             let ref mut layer: Layer = self.layers[i];
[INFO] [stderr]    |             ----^^^^^^^^^^^^^------------------------- help: try: `let layer: &mut Layer = &mut self.layers[i];`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::toplevel_ref_arg)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#toplevel_ref_arg
[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/main.rs:50:36
[INFO] [stderr]    |
[INFO] [stderr] 50 |     fn total_error(&mut self, inputs: &Vec<f64>, actual: &Vec<f64>) -> 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: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]   --> src/main.rs:50:55
[INFO] [stderr]    |
[INFO] [stderr] 50 |     fn total_error(&mut self, inputs: &Vec<f64>, actual: &Vec<f64>) -> 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: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]   --> src/main.rs:58:48
[INFO] [stderr]    |
[INFO] [stderr] 58 |     fn online_back_propogation(&mut self, inputs: &Vec<f64>, actual: &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: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]   --> src/main.rs:58:67
[INFO] [stderr]    |
[INFO] [stderr] 58 |     fn online_back_propogation(&mut self, inputs: &Vec<f64>, actual: &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 `actual`
[INFO] [stderr]   --> src/main.rs:66:12
[INFO] [stderr]    |
[INFO] [stderr] 66 |         for i in 0..self.layers[index_of_last_layer].neurons.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] 66 |         for (i, <item>) in actual.iter().enumerate().take(self.layers[index_of_last_layer].neurons.len()) {
[INFO] [stderr]    |             ^^^^^^^^^^^    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `ref` on an entire `let` pattern is discouraged, take a reference with `&` instead
[INFO] [stderr]   --> src/main.rs:67:8
[INFO] [stderr]    |
[INFO] [stderr] 67 |             let ref neuron: Neuron = self.layers[index_of_last_layer].neurons[i];
[INFO] [stderr]    |             ----^^^^^^^^^^------------------------------------------------------- help: try: `let neuron: &Neuron = &self.layers[index_of_last_layer].neurons[i];`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#toplevel_ref_arg
[INFO] [stderr] 
[INFO] [stderr] warning: `ref` on an entire `let` pattern is discouraged, take a reference with `&` instead
[INFO] [stderr]   --> src/main.rs:68:8
[INFO] [stderr]    |
[INFO] [stderr] 68 |             let ref output: f64 = neuron.output.expect("Neuron has no outputted value");
[INFO] [stderr]    |             ----^^^^^^^^^^-------------------------------------------------------------- help: try: `let output: &f64 = &neuron.output.expect("Neuron has no outputted value");`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#toplevel_ref_arg
[INFO] [stderr] 
[INFO] [stderr] warning: `ref` on an entire `let` pattern is discouraged, take a reference with `&` instead
[INFO] [stderr]   --> src/main.rs:82:9
[INFO] [stderr]    |
[INFO] [stderr] 82 |                 let ref d_error_wrt_input_prev = d_errors_wrt_input[0];
[INFO] [stderr]    |                 ----^^^^^^^^^^^^^^^^^^^^^^^^^^------------------------- help: try: `let d_error_wrt_input_prev = &d_errors_wrt_input[0];`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#toplevel_ref_arg
[INFO] [stderr] 
[INFO] [stderr] warning: `ref` on an entire `let` pattern is discouraged, take a reference with `&` instead
[INFO] [stderr]   --> src/main.rs:83:9
[INFO] [stderr]    |
[INFO] [stderr] 83 |                 let ref neuron: Neuron = self.layers[index_of_layer].neurons[i];
[INFO] [stderr]    |                 ----^^^^^^^^^^-------------------------------------------------- help: try: `let neuron: &Neuron = &self.layers[index_of_layer].neurons[i];`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#toplevel_ref_arg
[INFO] [stderr] 
[INFO] [stderr] warning: `ref` on an entire `let` pattern is discouraged, take a reference with `&` instead
[INFO] [stderr]   --> src/main.rs:84:9
[INFO] [stderr]    |
[INFO] [stderr] 84 |                 let ref output: f64 = neuron.output.expect("Neuron has no outputted value");
[INFO] [stderr]    |                 ----^^^^^^^^^^-------------------------------------------------------------- help: try: `let output: &f64 = &neuron.output.expect("Neuron has no outputted value");`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#toplevel_ref_arg
[INFO] [stderr] 
[INFO] [stderr] warning: the loop variable `j` is used to index `d_error_wrt_input_prev`
[INFO] [stderr]   --> src/main.rs:88:14
[INFO] [stderr]    |
[INFO] [stderr] 88 |                 for j in 0..self.layers[index_of_layer + 1].neurons.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] 88 |                 for (j, <item>) in d_error_wrt_input_prev.iter().enumerate().take(self.layers[index_of_layer + 1].neurons.len()) {
[INFO] [stderr]    |                     ^^^^^^^^^^^    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `ref` on an entire `let` pattern is discouraged, take a reference with `&` instead
[INFO] [stderr]   --> src/main.rs:89:10
[INFO] [stderr]    |
[INFO] [stderr] 89 |                     let ref weight: f64 = self.layers[index_of_layer + 1].neurons[j].weights[i];
[INFO] [stderr]    |                     ----^^^^^^^^^^-------------------------------------------------------------- help: try: `let weight: &f64 = &self.layers[index_of_layer + 1].neurons[j].weights[i];`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#toplevel_ref_arg
[INFO] [stderr] 
[INFO] [stderr] warning: manual implementation of an assign operation
[INFO] [stderr]   --> src/main.rs:90:6
[INFO] [stderr]    |
[INFO] [stderr] 90 |                     d_error_wrt_output = d_error_wrt_output + d_error_wrt_input_prev[j] * weight;
[INFO] [stderr]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `d_error_wrt_output += d_error_wrt_input_prev[j] * weight`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::assign_op_pattern)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: the loop variable `l` is used to index `d_errors_wrt_input`
[INFO] [stderr]    --> src/main.rs:101:12
[INFO] [stderr]     |
[INFO] [stderr] 101 |         for l in 0..self.layers.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] 101 |         for (l, <item>) in d_errors_wrt_input.iter().enumerate().take(self.layers.len()) {
[INFO] [stderr]     |             ^^^^^^^^^^^    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `ref` on an entire `let` pattern is discouraged, take a reference with `&` instead
[INFO] [stderr]    --> src/main.rs:103:9
[INFO] [stderr]     |
[INFO] [stderr] 103 |                 let ref mut neuron: Neuron = self.layers[l].neurons[i];
[INFO] [stderr]     |                 ----^^^^^^^^^^^^^^------------------------------------- help: try: `let neuron: &mut Neuron = &mut self.layers[l].neurons[i];`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#toplevel_ref_arg
[INFO] [stderr] 
[INFO] [stderr] warning: manual implementation of an assign operation
[INFO] [stderr]    --> src/main.rs:108:6
[INFO] [stderr]     |
[INFO] [stderr] 108 |                     neuron.weights[j] = neuron.weights[j] - LEARNING_RATE * d_error_wrt_weight;
[INFO] [stderr]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `neuron.weights[j] -= LEARNING_RATE * d_error_wrt_weight`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[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/main.rs:128:29
[INFO] [stderr]     |
[INFO] [stderr] 128 |     fn calc(&mut self, inputs: &Vec<f64>) -> 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: `ref` on an entire `let` pattern is discouraged, take a reference with `&` instead
[INFO] [stderr]    --> src/main.rs:132:8
[INFO] [stderr]     |
[INFO] [stderr] 132 |             let ref mut neuron: Neuron = self.neurons[i];
[INFO] [stderr]     |             ----^^^^^^^^^^^^^^--------------------------- help: try: `let neuron: &mut Neuron = &mut self.neurons[i];`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#toplevel_ref_arg
[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/main.rs:152:29
[INFO] [stderr]     |
[INFO] [stderr] 152 |     fn calc(&mut self, inputs: &Vec<f64>) -> 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: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]   --> src/main.rs:34:37
[INFO] [stderr]    |
[INFO] [stderr] 34 |     fn feed_forward(&mut self, inputs: &Vec<f64>) -> 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: `ref` on an entire `let` pattern is discouraged, take a reference with `&` instead
[INFO] [stderr]   --> src/main.rs:41:8
[INFO] [stderr]    |
[INFO] [stderr] 41 |             let ref mut layer: Layer = self.layers[i];
[INFO] [stderr]    |             ----^^^^^^^^^^^^^------------------------- help: try: `let layer: &mut Layer = &mut self.layers[i];`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::toplevel_ref_arg)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#toplevel_ref_arg
[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/main.rs:50:36
[INFO] [stderr]    |
[INFO] [stderr] 50 |     fn total_error(&mut self, inputs: &Vec<f64>, actual: &Vec<f64>) -> 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: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]   --> src/main.rs:50:55
[INFO] [stderr]    |
[INFO] [stderr] 50 |     fn total_error(&mut self, inputs: &Vec<f64>, actual: &Vec<f64>) -> 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: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]   --> src/main.rs:58:48
[INFO] [stderr]    |
[INFO] [stderr] 58 |     fn online_back_propogation(&mut self, inputs: &Vec<f64>, actual: &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: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]   --> src/main.rs:58:67
[INFO] [stderr]    |
[INFO] [stderr] 58 |     fn online_back_propogation(&mut self, inputs: &Vec<f64>, actual: &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 `actual`
[INFO] [stderr]   --> src/main.rs:66:12
[INFO] [stderr]    |
[INFO] [stderr] 66 |         for i in 0..self.layers[index_of_last_layer].neurons.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] 66 |         for (i, <item>) in actual.iter().enumerate().take(self.layers[index_of_last_layer].neurons.len()) {
[INFO] [stderr]    |             ^^^^^^^^^^^    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `ref` on an entire `let` pattern is discouraged, take a reference with `&` instead
[INFO] [stderr]   --> src/main.rs:67:8
[INFO] [stderr]    |
[INFO] [stderr] 67 |             let ref neuron: Neuron = self.layers[index_of_last_layer].neurons[i];
[INFO] [stderr]    |             ----^^^^^^^^^^------------------------------------------------------- help: try: `let neuron: &Neuron = &self.layers[index_of_last_layer].neurons[i];`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#toplevel_ref_arg
[INFO] [stderr] 
[INFO] [stderr] warning: `ref` on an entire `let` pattern is discouraged, take a reference with `&` instead
[INFO] [stderr]   --> src/main.rs:68:8
[INFO] [stderr]    |
[INFO] [stderr] 68 |             let ref output: f64 = neuron.output.expect("Neuron has no outputted value");
[INFO] [stderr]    |             ----^^^^^^^^^^-------------------------------------------------------------- help: try: `let output: &f64 = &neuron.output.expect("Neuron has no outputted value");`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#toplevel_ref_arg
[INFO] [stderr] 
[INFO] [stderr] warning: `ref` on an entire `let` pattern is discouraged, take a reference with `&` instead
[INFO] [stderr]   --> src/main.rs:82:9
[INFO] [stderr]    |
[INFO] [stderr] 82 |                 let ref d_error_wrt_input_prev = d_errors_wrt_input[0];
[INFO] [stderr]    |                 ----^^^^^^^^^^^^^^^^^^^^^^^^^^------------------------- help: try: `let d_error_wrt_input_prev = &d_errors_wrt_input[0];`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#toplevel_ref_arg
[INFO] [stderr] 
[INFO] [stderr] warning: `ref` on an entire `let` pattern is discouraged, take a reference with `&` instead
[INFO] [stderr]   --> src/main.rs:83:9
[INFO] [stderr]    |
[INFO] [stderr] 83 |                 let ref neuron: Neuron = self.layers[index_of_layer].neurons[i];
[INFO] [stderr]    |                 ----^^^^^^^^^^-------------------------------------------------- help: try: `let neuron: &Neuron = &self.layers[index_of_layer].neurons[i];`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#toplevel_ref_arg
[INFO] [stderr] 
[INFO] [stderr] warning: `ref` on an entire `let` pattern is discouraged, take a reference with `&` instead
[INFO] [stderr]   --> src/main.rs:84:9
[INFO] [stderr]    |
[INFO] [stderr] 84 |                 let ref output: f64 = neuron.output.expect("Neuron has no outputted value");
[INFO] [stderr]    |                 ----^^^^^^^^^^-------------------------------------------------------------- help: try: `let output: &f64 = &neuron.output.expect("Neuron has no outputted value");`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#toplevel_ref_arg
[INFO] [stderr] 
[INFO] [stderr] warning: the loop variable `j` is used to index `d_error_wrt_input_prev`
[INFO] [stderr]   --> src/main.rs:88:14
[INFO] [stderr]    |
[INFO] [stderr] 88 |                 for j in 0..self.layers[index_of_layer + 1].neurons.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] 88 |                 for (j, <item>) in d_error_wrt_input_prev.iter().enumerate().take(self.layers[index_of_layer + 1].neurons.len()) {
[INFO] [stderr]    |                     ^^^^^^^^^^^    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `ref` on an entire `let` pattern is discouraged, take a reference with `&` instead
[INFO] [stderr]   --> src/main.rs:89:10
[INFO] [stderr]    |
[INFO] [stderr] 89 |                     let ref weight: f64 = self.layers[index_of_layer + 1].neurons[j].weights[i];
[INFO] [stderr]    |                     ----^^^^^^^^^^-------------------------------------------------------------- help: try: `let weight: &f64 = &self.layers[index_of_layer + 1].neurons[j].weights[i];`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#toplevel_ref_arg
[INFO] [stderr] 
[INFO] [stderr] warning: manual implementation of an assign operation
[INFO] [stderr]   --> src/main.rs:90:6
[INFO] [stderr]    |
[INFO] [stderr] 90 |                     d_error_wrt_output = d_error_wrt_output + d_error_wrt_input_prev[j] * weight;
[INFO] [stderr]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `d_error_wrt_output += d_error_wrt_input_prev[j] * weight`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::assign_op_pattern)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: the loop variable `l` is used to index `d_errors_wrt_input`
[INFO] [stderr]    --> src/main.rs:101:12
[INFO] [stderr]     |
[INFO] [stderr] 101 |         for l in 0..self.layers.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] 101 |         for (l, <item>) in d_errors_wrt_input.iter().enumerate().take(self.layers.len()) {
[INFO] [stderr]     |             ^^^^^^^^^^^    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `ref` on an entire `let` pattern is discouraged, take a reference with `&` instead
[INFO] [stderr]    --> src/main.rs:103:9
[INFO] [stderr]     |
[INFO] [stderr] 103 |                 let ref mut neuron: Neuron = self.layers[l].neurons[i];
[INFO] [stderr]     |                 ----^^^^^^^^^^^^^^------------------------------------- help: try: `let neuron: &mut Neuron = &mut self.layers[l].neurons[i];`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#toplevel_ref_arg
[INFO] [stderr] 
[INFO] [stderr] warning: manual implementation of an assign operation
[INFO] [stderr]    --> src/main.rs:108:6
[INFO] [stderr]     |
[INFO] [stderr] 108 |                     neuron.weights[j] = neuron.weights[j] - LEARNING_RATE * d_error_wrt_weight;
[INFO] [stderr]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `neuron.weights[j] -= LEARNING_RATE * d_error_wrt_weight`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[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/main.rs:128:29
[INFO] [stderr]     |
[INFO] [stderr] 128 |     fn calc(&mut self, inputs: &Vec<f64>) -> 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: `ref` on an entire `let` pattern is discouraged, take a reference with `&` instead
[INFO] [stderr]    --> src/main.rs:132:8
[INFO] [stderr]     |
[INFO] [stderr] 132 |             let ref mut neuron: Neuron = self.neurons[i];
[INFO] [stderr]     |             ----^^^^^^^^^^^^^^--------------------------- help: try: `let neuron: &mut Neuron = &mut self.neurons[i];`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#toplevel_ref_arg
[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/main.rs:152:29
[INFO] [stderr]     |
[INFO] [stderr] 152 |     fn calc(&mut self, inputs: &Vec<f64>) -> 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]     Finished dev [unoptimized + debuginfo] target(s) in 2.61s
[INFO] running `"docker" "inspect" "a6821d0e080b30d7d0a4d2a7d4e3c60463a1833183b97351d6741e1197fec339"`
[INFO] running `"docker" "rm" "-f" "a6821d0e080b30d7d0a4d2a7d4e3c60463a1833183b97351d6741e1197fec339"`
[INFO] [stdout] a6821d0e080b30d7d0a4d2a7d4e3c60463a1833183b97351d6741e1197fec339