[INFO] cloning repository https://github.com/colin-riddell/simple-rust-nn
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/colin-riddell/simple-rust-nn" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcolin-riddell%2Fsimple-rust-nn", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcolin-riddell%2Fsimple-rust-nn'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 941d6356e5ace82d2283c77c983f4dd4271eda53
[INFO] checking colin-riddell/simple-rust-nn against master#bca37a20bd376ce3fd138e7cdee7fe704e0f8814 for pr-139493-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcolin-riddell%2Fsimple-rust-nn" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/colin-riddell/simple-rust-nn
[INFO] finished tweaking git repo https://github.com/colin-riddell/simple-rust-nn
[INFO] tweaked toml for git repo https://github.com/colin-riddell/simple-rust-nn written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/colin-riddell/simple-rust-nn on toolchain bca37a20bd376ce3fd138e7cdee7fe704e0f8814
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/colin-riddell/simple-rust-nn 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" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded serde_json v1.0.106
[INFO] [stderr]   Downloaded libm v0.2.7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
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[INFO] [stdout] cb518720b3afc986a4da359c2bcc742e966b7fe0704c11cacc3053f291800b6f
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[INFO] [stderr]    Compiling libc v0.2.109
[INFO] [stderr]    Compiling crossbeam-utils v0.8.5
[INFO] [stderr]    Compiling memoffset v0.6.5
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[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling rayon v1.5.1
[INFO] [stderr]    Compiling crc32fast v1.3.0
[INFO] [stderr]    Compiling serde v1.0.188
[INFO] [stderr]    Compiling serde_json v1.0.106
[INFO] [stderr]    Compiling syn v2.0.32
[INFO] [stderr]     Checking gif v0.11.3
[INFO] [stderr]     Checking crossbeam-channel v0.5.1
[INFO] [stderr]     Checking png v0.16.8
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking getrandom v0.2.3
[INFO] [stderr]     Checking crossbeam-deque v0.8.1
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking rayon-core v1.9.1
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.4
[INFO] [stderr]     Checking num-integer v0.1.44
[INFO] [stderr]    Compiling serde_derive v1.0.188
[INFO] [stderr]     Checking rand_distr v0.4.3
[INFO] [stderr]     Checking num-rational v0.3.2
[INFO] [stderr]     Checking num-iter v0.1.42
[INFO] [stderr]     Checking jpeg-decoder v0.1.22
[INFO] [stderr]     Checking tiff v0.6.1
[INFO] [stderr]     Checking image v0.23.14
[INFO] [stderr]     Checking rust-neural-network v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `rand::*`
[INFO] [stdout]  --> src/main.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use rand::*;
[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: `Deserialize` and `Serialize`
[INFO] [stdout]  --> src/main.rs:2:13
[INFO] [stdout]   |
[INFO] [stdout] 2 | use serde::{Serialize, Deserialize};
[INFO] [stdout]   |             ^^^^^^^^^  ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fs::*`
[INFO] [stdout]  --> src/network/Network.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::fs::*;
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fs::*`
[INFO] [stdout]  --> src/images/mod.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::fs::*;
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `rand::*`
[INFO] [stdout]  --> src/mnist.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use rand::*;
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Deserialize` and `Serialize`
[INFO] [stdout]  --> src/mnist.rs:4:13
[INFO] [stdout]   |
[INFO] [stdout] 4 | use serde::{Serialize, Deserialize};
[INFO] [stdout]   |             ^^^^^^^^^  ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::io::Write`
[INFO] [stdout]  --> src/mnist.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::io::Write;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::utils::random_f64`
[INFO] [stdout]  --> src/mnist.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use crate::utils::random_f64;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/mnist.rs:85:11
[INFO] [stdout]    |
[INFO] [stdout] 85 |         if(train_data.len() != train_labels.len()){
[INFO] [stdout]    |           ^                                      ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 85 -         if(train_data.len() != train_labels.len()){
[INFO] [stdout] 85 +         if train_data.len() != train_labels.len() {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/mnist2.rs:37:7
[INFO] [stdout]    |
[INFO] [stdout] 37 |     if(train_data.len() != train_labels.len()){
[INFO] [stdout]    |       ^                                      ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 37 -     if(train_data.len() != train_labels.len()){
[INFO] [stdout] 37 +     if train_data.len() != train_labels.len() {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `simple_problem::train_simple_problem`
[INFO] [stdout]   --> src/main.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 | use simple_problem::train_simple_problem;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `rand`
[INFO] [stdout]  --> src/network/Network.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use rand::*;
[INFO] [stdout]   |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `image`
[INFO] [stdout]  --> src/network/Network.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use image::*;
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/network/Network.rs:125:21
[INFO] [stdout]     |
[INFO] [stdout] 125 |                 let mut output_preds = self.output_layer.predict(&hidden_output);
[INFO] [stdout]     |                     ----^^^^^^^^^^^^
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `current_rate` is assigned to, but never used
[INFO] [stdout]    --> src/network/Network.rs:120:13
[INFO] [stdout]     |
[INFO] [stdout] 120 |         let mut current_rate = rate;
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: consider using `_current_rate` instead
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `hidden_val`
[INFO] [stdout]    --> src/network/Network.rs:145:34
[INFO] [stdout]     |
[INFO] [stdout] 145 |                 for (i, (neuron, hidden_val)) in self.hidden_layer.neurons.iter_mut().zip(hidden_output.iter()).enumerate() {
[INFO] [stdout]     |                                  ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_hidden_val`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `current_rate` is never read
[INFO] [stdout]    --> src/network/Network.rs:165:13
[INFO] [stdout]     |
[INFO] [stdout] 165 |             current_rate *= LEARNING_RATE_DECAY;  // Decay the learning rate
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `out_of_range_images`
[INFO] [stdout]   --> src/images/mod.rs:57:9
[INFO] [stdout]    |
[INFO] [stdout] 57 |     let out_of_range_images: Vec<String> = vec![];
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_out_of_range_images`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `non_8_bit_images`
[INFO] [stdout]   --> src/images/mod.rs:58:9
[INFO] [stdout]    |
[INFO] [stdout] 58 |     let non_8_bit_images: Vec<String> = vec![];
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_non_8_bit_images`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/mnist.rs:48:13
[INFO] [stdout]    |
[INFO] [stdout] 48 |         let mut network = Network::new(IMG_WIDTH * IMG_HEIGHT, 10, 2);
[INFO] [stdout]    |             ----^^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `index`
[INFO] [stdout]    --> src/mnist.rs:109:18
[INFO] [stdout]     |
[INFO] [stdout] 109 |             for (index, file) in zero_test_files.iter().enumerate() {
[INFO] [stdout]     |                  ^^^^^ help: if this is intentional, prefix it with an underscore: `_index`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `LEARNING_RATE_DECAY` is never used
[INFO] [stdout]   --> src/network/Network.rs:32:7
[INFO] [stdout]    |
[INFO] [stdout] 32 | const LEARNING_RATE_DECAY: f64 = 0.995;  // Adjust as needed
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `MOMENTUM` is never used
[INFO] [stdout]   --> src/network/Network.rs:33:7
[INFO] [stdout]    |
[INFO] [stdout] 33 | const MOMENTUM: f64 = 0.9;  // Adjust as needed
[INFO] [stdout]    |       ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `L2_REG` is never used
[INFO] [stdout]   --> src/network/Network.rs:34:7
[INFO] [stdout]    |
[INFO] [stdout] 34 | const L2_REG: f64 = 0.00001;  // L2 regularization strength
[INFO] [stdout]    |       ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `to_string`, `from_string`, `save`, and `train` are never used
[INFO] [stdout]    --> src/network/Network.rs:85:12
[INFO] [stdout]     |
[INFO] [stdout]  78 | impl Network {
[INFO] [stdout]     | ------------ associated items in this implementation
[INFO] [stdout] ...
[INFO] [stdout]  85 |     pub fn to_string(&self) -> String {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  90 |     pub fn from_string(s: &str) -> Network {
[INFO] [stdout]     |            ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  95 |     pub fn save(&mut self, filename: &str){
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 119 |     pub fn train(&mut self, inputs: &Vec<Vec<f64>>, outputs: &Vec<Vec<f64>>, rate: f64, epochs: usize) {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `is_within_range` is never used
[INFO] [stdout]   --> src/images/mod.rs:28:4
[INFO] [stdout]    |
[INFO] [stdout] 28 | fn is_within_range(img: &GrayImage) -> bool {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `is_8_bit_grayscale` is never used
[INFO] [stdout]   --> src/images/mod.rs:37:4
[INFO] [stdout]    |
[INFO] [stdout] 37 | fn is_8_bit_grayscale(img_path: &std::path::Path) -> bool {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `check_image` is never used
[INFO] [stdout]   --> src/images/mod.rs:51:8
[INFO] [stdout]    |
[INFO] [stdout] 51 | pub fn check_image() {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `random_f64` is never used
[INFO] [stdout]  --> src/utils.rs:2:8
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub fn random_f64() -> f64 {
[INFO] [stdout]   |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_files` is never used
[INFO] [stdout]   --> src/utils.rs:20:8
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub fn get_files(dir: &str) -> Vec<String> {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `vectorized_result` is never used
[INFO] [stdout]   --> src/mnist.rs:17:4
[INFO] [stdout]    |
[INFO] [stdout] 17 | fn vectorized_result(label: usize) -> Vec<f64> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `train`, `save`, and `test_one` are never used
[INFO] [stdout]   --> src/mnist.rs:30:8
[INFO] [stdout]    |
[INFO] [stdout] 29 | pub trait TrainableCharacterModel {
[INFO] [stdout]    |           ----------------------- methods in this trait
[INFO] [stdout] 30 |     fn train(&mut self);
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 31 |     fn save(&mut self, filename: &str);
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 32 |     fn load(&mut self, filename: &str);
[INFO] [stdout] 33 |     fn test_one(&mut self, letter: &str);
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `encode_letter` is never used
[INFO] [stdout]    --> src/mnist.rs:190:4
[INFO] [stdout]     |
[INFO] [stdout] 190 | fn encode_letter(c: &str) -> Option<Vec<f64>> {
[INFO] [stdout]     |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_mnist_letter_testing` is never used
[INFO] [stdout]    --> src/mnist.rs:209:4
[INFO] [stdout]     |
[INFO] [stdout] 209 | fn get_mnist_letter_testing(letter: &str)-> Vec<String>{
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_mnist_letter_training` is never used
[INFO] [stdout]    --> src/mnist.rs:214:4
[INFO] [stdout]     |
[INFO] [stdout] 214 | fn get_mnist_letter_training(letter: &str)-> Vec<String>{
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `train_simple_problem` is never used
[INFO] [stdout]  --> src/simple_problem.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub fn train_simple_problem() {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `IMG_WIDTH` is never used
[INFO] [stdout]  --> src/mnist2.rs:7:7
[INFO] [stdout]   |
[INFO] [stdout] 7 | const IMG_WIDTH: usize = 28;
[INFO] [stdout]   |       ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `IMG_HEIGHT` is never used
[INFO] [stdout]  --> src/mnist2.rs:8:7
[INFO] [stdout]   |
[INFO] [stdout] 8 | const IMG_HEIGHT: usize = 28;
[INFO] [stdout]   |       ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `train_and_test` is never used
[INFO] [stdout]   --> src/mnist2.rs:10:8
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub fn train_and_test() {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `image_to_vector` is never used
[INFO] [stdout]   --> src/mnist2.rs:74:4
[INFO] [stdout]    |
[INFO] [stdout] 74 | fn image_to_vector(img: &GrayImage) -> Vec<f64> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `vectorized_result` is never used
[INFO] [stdout]   --> src/mnist2.rs:78:4
[INFO] [stdout]    |
[INFO] [stdout] 78 | fn vectorized_result(label: usize) -> Vec<f64> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `mnistModel` should have a snake case name
[INFO] [stdout]   --> src/main.rs:18:13
[INFO] [stdout]    |
[INFO] [stdout] 18 |     let mut mnistModel = FullMnist::new();
[INFO] [stdout]    |             ^^^^^^^^^^ help: convert the identifier to snake case: `mnist_model`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: module `Network` should have a snake case name
[INFO] [stdout]  --> src/network/mod.rs:1:9
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub mod Network;
[INFO] [stdout]   |         ^^^^^^^ help: convert the identifier to snake case: `network`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: comparison is useless due to type limits
[INFO] [stdout]   --> src/images/mod.rs:30:12
[INFO] [stdout]    |
[INFO] [stdout] 30 |         if pixel[0] < 0 || pixel[0] > 255 {
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_comparisons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: comparison is useless due to type limits
[INFO] [stdout]   --> src/images/mod.rs:30:28
[INFO] [stdout]    |
[INFO] [stdout] 30 |         if pixel[0] < 0 || pixel[0] > 255 {
[INFO] [stdout]    |                            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `rand::*`
[INFO] [stdout]  --> src/main.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use rand::*;
[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: `Deserialize` and `Serialize`
[INFO] [stdout]  --> src/main.rs:2:13
[INFO] [stdout]   |
[INFO] [stdout] 2 | use serde::{Serialize, Deserialize};
[INFO] [stdout]   |             ^^^^^^^^^  ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fs::*`
[INFO] [stdout]  --> src/network/Network.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::fs::*;
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fs::*`
[INFO] [stdout]  --> src/images/mod.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::fs::*;
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `rand::*`
[INFO] [stdout]  --> src/mnist.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use rand::*;
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Deserialize` and `Serialize`
[INFO] [stdout]  --> src/mnist.rs:4:13
[INFO] [stdout]   |
[INFO] [stdout] 4 | use serde::{Serialize, Deserialize};
[INFO] [stdout]   |             ^^^^^^^^^  ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::io::Write`
[INFO] [stdout]  --> src/mnist.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::io::Write;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::utils::random_f64`
[INFO] [stdout]  --> src/mnist.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use crate::utils::random_f64;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/mnist.rs:85:11
[INFO] [stdout]    |
[INFO] [stdout] 85 |         if(train_data.len() != train_labels.len()){
[INFO] [stdout]    |           ^                                      ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 85 -         if(train_data.len() != train_labels.len()){
[INFO] [stdout] 85 +         if train_data.len() != train_labels.len() {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/mnist2.rs:37:7
[INFO] [stdout]    |
[INFO] [stdout] 37 |     if(train_data.len() != train_labels.len()){
[INFO] [stdout]    |       ^                                      ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 37 -     if(train_data.len() != train_labels.len()){
[INFO] [stdout] 37 +     if train_data.len() != train_labels.len() {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `simple_problem::train_simple_problem`
[INFO] [stdout]   --> src/main.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 | use simple_problem::train_simple_problem;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `rand`
[INFO] [stdout]  --> src/network/Network.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use rand::*;
[INFO] [stdout]   |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `image`
[INFO] [stdout]  --> src/network/Network.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use image::*;
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/network/Network.rs:125:21
[INFO] [stdout]     |
[INFO] [stdout] 125 |                 let mut output_preds = self.output_layer.predict(&hidden_output);
[INFO] [stdout]     |                     ----^^^^^^^^^^^^
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `current_rate` is assigned to, but never used
[INFO] [stdout]    --> src/network/Network.rs:120:13
[INFO] [stdout]     |
[INFO] [stdout] 120 |         let mut current_rate = rate;
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: consider using `_current_rate` instead
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `hidden_val`
[INFO] [stdout]    --> src/network/Network.rs:145:34
[INFO] [stdout]     |
[INFO] [stdout] 145 |                 for (i, (neuron, hidden_val)) in self.hidden_layer.neurons.iter_mut().zip(hidden_output.iter()).enumerate() {
[INFO] [stdout]     |                                  ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_hidden_val`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `current_rate` is never read
[INFO] [stdout]    --> src/network/Network.rs:165:13
[INFO] [stdout]     |
[INFO] [stdout] 165 |             current_rate *= LEARNING_RATE_DECAY;  // Decay the learning rate
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `out_of_range_images`
[INFO] [stdout]   --> src/images/mod.rs:57:9
[INFO] [stdout]    |
[INFO] [stdout] 57 |     let out_of_range_images: Vec<String> = vec![];
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_out_of_range_images`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `non_8_bit_images`
[INFO] [stdout]   --> src/images/mod.rs:58:9
[INFO] [stdout]    |
[INFO] [stdout] 58 |     let non_8_bit_images: Vec<String> = vec![];
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_non_8_bit_images`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/mnist.rs:48:13
[INFO] [stdout]    |
[INFO] [stdout] 48 |         let mut network = Network::new(IMG_WIDTH * IMG_HEIGHT, 10, 2);
[INFO] [stdout]    |             ----^^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `index`
[INFO] [stdout]    --> src/mnist.rs:109:18
[INFO] [stdout]     |
[INFO] [stdout] 109 |             for (index, file) in zero_test_files.iter().enumerate() {
[INFO] [stdout]     |                  ^^^^^ help: if this is intentional, prefix it with an underscore: `_index`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `LEARNING_RATE_DECAY` is never used
[INFO] [stdout]   --> src/network/Network.rs:32:7
[INFO] [stdout]    |
[INFO] [stdout] 32 | const LEARNING_RATE_DECAY: f64 = 0.995;  // Adjust as needed
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `MOMENTUM` is never used
[INFO] [stdout]   --> src/network/Network.rs:33:7
[INFO] [stdout]    |
[INFO] [stdout] 33 | const MOMENTUM: f64 = 0.9;  // Adjust as needed
[INFO] [stdout]    |       ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `L2_REG` is never used
[INFO] [stdout]   --> src/network/Network.rs:34:7
[INFO] [stdout]    |
[INFO] [stdout] 34 | const L2_REG: f64 = 0.00001;  // L2 regularization strength
[INFO] [stdout]    |       ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `to_string`, `from_string`, `save`, and `train` are never used
[INFO] [stdout]    --> src/network/Network.rs:85:12
[INFO] [stdout]     |
[INFO] [stdout]  78 | impl Network {
[INFO] [stdout]     | ------------ associated items in this implementation
[INFO] [stdout] ...
[INFO] [stdout]  85 |     pub fn to_string(&self) -> String {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  90 |     pub fn from_string(s: &str) -> Network {
[INFO] [stdout]     |            ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  95 |     pub fn save(&mut self, filename: &str){
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 119 |     pub fn train(&mut self, inputs: &Vec<Vec<f64>>, outputs: &Vec<Vec<f64>>, rate: f64, epochs: usize) {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `is_within_range` is never used
[INFO] [stdout]   --> src/images/mod.rs:28:4
[INFO] [stdout]    |
[INFO] [stdout] 28 | fn is_within_range(img: &GrayImage) -> bool {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `is_8_bit_grayscale` is never used
[INFO] [stdout]   --> src/images/mod.rs:37:4
[INFO] [stdout]    |
[INFO] [stdout] 37 | fn is_8_bit_grayscale(img_path: &std::path::Path) -> bool {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `check_image` is never used
[INFO] [stdout]   --> src/images/mod.rs:51:8
[INFO] [stdout]    |
[INFO] [stdout] 51 | pub fn check_image() {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `random_f64` is never used
[INFO] [stdout]  --> src/utils.rs:2:8
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub fn random_f64() -> f64 {
[INFO] [stdout]   |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_files` is never used
[INFO] [stdout]   --> src/utils.rs:20:8
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub fn get_files(dir: &str) -> Vec<String> {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `vectorized_result` is never used
[INFO] [stdout]   --> src/mnist.rs:17:4
[INFO] [stdout]    |
[INFO] [stdout] 17 | fn vectorized_result(label: usize) -> Vec<f64> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `train`, `save`, and `test_one` are never used
[INFO] [stdout]   --> src/mnist.rs:30:8
[INFO] [stdout]    |
[INFO] [stdout] 29 | pub trait TrainableCharacterModel {
[INFO] [stdout]    |           ----------------------- methods in this trait
[INFO] [stdout] 30 |     fn train(&mut self);
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 31 |     fn save(&mut self, filename: &str);
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 32 |     fn load(&mut self, filename: &str);
[INFO] [stdout] 33 |     fn test_one(&mut self, letter: &str);
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `encode_letter` is never used
[INFO] [stdout]    --> src/mnist.rs:190:4
[INFO] [stdout]     |
[INFO] [stdout] 190 | fn encode_letter(c: &str) -> Option<Vec<f64>> {
[INFO] [stdout]     |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_mnist_letter_testing` is never used
[INFO] [stdout]    --> src/mnist.rs:209:4
[INFO] [stdout]     |
[INFO] [stdout] 209 | fn get_mnist_letter_testing(letter: &str)-> Vec<String>{
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_mnist_letter_training` is never used
[INFO] [stdout]    --> src/mnist.rs:214:4
[INFO] [stdout]     |
[INFO] [stdout] 214 | fn get_mnist_letter_training(letter: &str)-> Vec<String>{
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `train_simple_problem` is never used
[INFO] [stdout]  --> src/simple_problem.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub fn train_simple_problem() {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `IMG_WIDTH` is never used
[INFO] [stdout]  --> src/mnist2.rs:7:7
[INFO] [stdout]   |
[INFO] [stdout] 7 | const IMG_WIDTH: usize = 28;
[INFO] [stdout]   |       ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `IMG_HEIGHT` is never used
[INFO] [stdout]  --> src/mnist2.rs:8:7
[INFO] [stdout]   |
[INFO] [stdout] 8 | const IMG_HEIGHT: usize = 28;
[INFO] [stdout]   |       ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `train_and_test` is never used
[INFO] [stdout]   --> src/mnist2.rs:10:8
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub fn train_and_test() {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `image_to_vector` is never used
[INFO] [stdout]   --> src/mnist2.rs:74:4
[INFO] [stdout]    |
[INFO] [stdout] 74 | fn image_to_vector(img: &GrayImage) -> Vec<f64> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `vectorized_result` is never used
[INFO] [stdout]   --> src/mnist2.rs:78:4
[INFO] [stdout]    |
[INFO] [stdout] 78 | fn vectorized_result(label: usize) -> Vec<f64> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `mnistModel` should have a snake case name
[INFO] [stdout]   --> src/main.rs:18:13
[INFO] [stdout]    |
[INFO] [stdout] 18 |     let mut mnistModel = FullMnist::new();
[INFO] [stdout]    |             ^^^^^^^^^^ help: convert the identifier to snake case: `mnist_model`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: module `Network` should have a snake case name
[INFO] [stdout]  --> src/network/mod.rs:1:9
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub mod Network;
[INFO] [stdout]   |         ^^^^^^^ help: convert the identifier to snake case: `network`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: comparison is useless due to type limits
[INFO] [stdout]   --> src/images/mod.rs:30:12
[INFO] [stdout]    |
[INFO] [stdout] 30 |         if pixel[0] < 0 || pixel[0] > 255 {
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_comparisons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: comparison is useless due to type limits
[INFO] [stdout]   --> src/images/mod.rs:30:28
[INFO] [stdout]    |
[INFO] [stdout] 30 |         if pixel[0] < 0 || pixel[0] > 255 {
[INFO] [stdout]    |                            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 12.38s
[INFO] running `Command { std: "docker" "inspect" "cb518720b3afc986a4da359c2bcc742e966b7fe0704c11cacc3053f291800b6f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cb518720b3afc986a4da359c2bcc742e966b7fe0704c11cacc3053f291800b6f", kill_on_drop: false }`
[INFO] [stdout] cb518720b3afc986a4da359c2bcc742e966b7fe0704c11cacc3053f291800b6f
