[INFO] cloning repository https://github.com/kaczor6418/neural-network
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kaczor6418/neural-network" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkaczor6418%2Fneural-network", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkaczor6418%2Fneural-network'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] eaaca3af6b100811311a853b9002578a9c98e209
[INFO] testing kaczor6418/neural-network against 1.49.0 for beta-1.50-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkaczor6418%2Fneural-network" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/kaczor6418/neural-network on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/kaczor6418/neural-network
[INFO] finished tweaking git repo https://github.com/kaczor6418/neural-network
[INFO] tweaked toml for git repo https://github.com/kaczor6418/neural-network written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/kaczor6418/neural-network already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5bce7c86f11c7f21faf20112a8af96676a378c1c99de42f5f2f98bc3a269a0b5
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "5bce7c86f11c7f21faf20112a8af96676a378c1c99de42f5f2f98bc3a269a0b5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5bce7c86f11c7f21faf20112a8af96676a378c1c99de42f5f2f98bc3a269a0b5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5bce7c86f11c7f21faf20112a8af96676a378c1c99de42f5f2f98bc3a269a0b5", kill_on_drop: false }`
[INFO] [stdout] 5bce7c86f11c7f21faf20112a8af96676a378c1c99de42f5f2f98bc3a269a0b5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c07b627affb4a4584e40cd0e041663320f542fb9ba44ee8931a3ccdf580957a4
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "c07b627affb4a4584e40cd0e041663320f542fb9ba44ee8931a3ccdf580957a4", kill_on_drop: false }`
[INFO] [stderr]    Compiling getrandom v0.1.15
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling neural-network v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct is never constructed: `Neuron`
[INFO] [stdout]  --> src/neural_network/neuron.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub struct Neuron {
[INFO] [stdout]   |            ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]  --> src/neural_network/neuron.rs:8:12
[INFO] [stdout]   |
[INFO] [stdout] 8 |     pub fn new(weights_count: &usize, min_weight: &f64, max_weight: &f64) -> Neuron {
[INFO] [stdout]   |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `update_weight`
[INFO] [stdout]   --> src/neural_network/neuron.rs:14:12
[INFO] [stdout]    |
[INFO] [stdout] 14 |     pub fn update_weight(&mut self, index: usize, learning_rate: &f64, loss_value: &f64) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `calculate_output_value`
[INFO] [stdout]   --> src/neural_network/neuron.rs:21:12
[INFO] [stdout]    |
[INFO] [stdout] 21 |     pub fn calculate_output_value(&self, inputs: &Vec<f64>) -> f64 {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `generate_random_weights`
[INFO] [stdout]   --> src/neural_network/neuron.rs:29:8
[INFO] [stdout]    |
[INFO] [stdout] 29 |     fn generate_random_weights(
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `set_weight`
[INFO] [stdout]   --> src/neural_network/neuron.rs:43:8
[INFO] [stdout]    |
[INFO] [stdout] 43 |     fn set_weight(&mut self, index: usize, value: f64) {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `calculate_new_weight`
[INFO] [stdout]   --> src/neural_network/neuron.rs:47:8
[INFO] [stdout]    |
[INFO] [stdout] 47 |     fn calculate_new_weight(&self, index: usize, learning_rate: &f64, loss_value: &f64) -> f64 {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Layer`
[INFO] [stdout]  --> src/neural_network/layer.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub struct Layer {
[INFO] [stdout]   |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/neural_network/layer.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 11 |     pub fn new(
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `size`
[INFO] [stdout]   --> src/neural_network/layer.rs:24:12
[INFO] [stdout]    |
[INFO] [stdout] 24 |     pub fn size(&self) -> usize {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `add_neurons`
[INFO] [stdout]   --> src/neural_network/layer.rs:28:12
[INFO] [stdout]    |
[INFO] [stdout] 28 |     pub fn add_neurons(
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `calculate_outputs`
[INFO] [stdout]   --> src/neural_network/layer.rs:43:12
[INFO] [stdout]    |
[INFO] [stdout] 43 |     pub fn calculate_outputs(&mut self, inputs: &Vec<f64>) -> &Vec<f64> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `calculate_weight_delta`
[INFO] [stdout]   --> src/neural_network/layer.rs:52:12
[INFO] [stdout]    |
[INFO] [stdout] 52 |     pub fn calculate_weight_delta(&self, expected_values: &Vec<f64>) -> Vec<f64> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `correct_neurons_weight`
[INFO] [stdout]   --> src/neural_network/layer.rs:64:12
[INFO] [stdout]    |
[INFO] [stdout] 64 |     pub fn correct_neurons_weight(&mut self, loss_values: &Vec<f64>, learning_rate: &f64) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `NetworkConfig`
[INFO] [stdout]  --> src/neural_network/network/network_config.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct NetworkConfig {
[INFO] [stdout]   |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `LayerConfig`
[INFO] [stdout]   --> src/neural_network/network/network_config.rs:10:12
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub struct LayerConfig {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `WeightsRange`
[INFO] [stdout]   --> src/neural_network/network/network_config.rs:16:12
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub struct WeightsRange {
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Network`
[INFO] [stdout]  --> src/neural_network/network.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct Network {
[INFO] [stdout]   |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/neural_network/network.rs:15:12
[INFO] [stdout]    |
[INFO] [stdout] 15 |     pub fn new(config: NetworkConfig) -> Network {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `fit`
[INFO] [stdout]   --> src/neural_network/network.rs:27:12
[INFO] [stdout]    |
[INFO] [stdout] 27 |     pub fn fit(&mut self, iterations: i32) {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `generate_layers`
[INFO] [stdout]   --> src/neural_network/network.rs:36:8
[INFO] [stdout]    |
[INFO] [stdout] 36 |     fn generate_layers(config: &NetworkConfig) -> Vec<Layer> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `forward_propagation`
[INFO] [stdout]   --> src/neural_network/network.rs:58:8
[INFO] [stdout]    |
[INFO] [stdout] 58 |     fn forward_propagation(&mut self) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `back_propagation`
[INFO] [stdout]   --> src/neural_network/network.rs:65:8
[INFO] [stdout]    |
[INFO] [stdout] 65 |     fn back_propagation(&mut self) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 23 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.97s
[INFO] running `Command { std: "docker" "inspect" "c07b627affb4a4584e40cd0e041663320f542fb9ba44ee8931a3ccdf580957a4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c07b627affb4a4584e40cd0e041663320f542fb9ba44ee8931a3ccdf580957a4", kill_on_drop: false }`
[INFO] [stdout] c07b627affb4a4584e40cd0e041663320f542fb9ba44ee8931a3ccdf580957a4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f71429c9947a100fcfbce2ebe5796768db63b22bf46e6ffde3d98d82d0f1a6a7
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "f71429c9947a100fcfbce2ebe5796768db63b22bf46e6ffde3d98d82d0f1a6a7", kill_on_drop: false }`
[INFO] [stderr]    Compiling neural-network v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated function is never used: `correct_neurons_weight`
[INFO] [stdout]   --> src/neural_network/layer.rs:64:12
[INFO] [stdout]    |
[INFO] [stdout] 64 |     pub fn correct_neurons_weight(&mut self, loss_values: &Vec<f64>, learning_rate: &f64) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `expected_output`
[INFO] [stdout]  --> src/neural_network/network.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     expected_output: Vec<f64>,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `inputs`
[INFO] [stdout]  --> src/neural_network/network.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     inputs: Vec<f64>,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `learning_rate`
[INFO] [stdout]   --> src/neural_network/network.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     learning_rate: f64,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `loss_function`
[INFO] [stdout]   --> src/neural_network/network.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     loss_function: fn(expected: &f64, predicted: &f64) -> f64,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `fit`
[INFO] [stdout]   --> src/neural_network/network.rs:27:12
[INFO] [stdout]    |
[INFO] [stdout] 27 |     pub fn fit(&mut self, iterations: i32) {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `forward_propagation`
[INFO] [stdout]   --> src/neural_network/network.rs:58:8
[INFO] [stdout]    |
[INFO] [stdout] 58 |     fn forward_propagation(&mut self) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `back_propagation`
[INFO] [stdout]   --> src/neural_network/network.rs:65:8
[INFO] [stdout]    |
[INFO] [stdout] 65 |     fn back_propagation(&mut self) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.32s
[INFO] running `Command { std: "docker" "inspect" "f71429c9947a100fcfbce2ebe5796768db63b22bf46e6ffde3d98d82d0f1a6a7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f71429c9947a100fcfbce2ebe5796768db63b22bf46e6ffde3d98d82d0f1a6a7", kill_on_drop: false }`
[INFO] [stdout] f71429c9947a100fcfbce2ebe5796768db63b22bf46e6ffde3d98d82d0f1a6a7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] ed1f60bbc0176093c890bbfe519d94137fcb6a9b8a725d515a15946c276a3378
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "ed1f60bbc0176093c890bbfe519d94137fcb6a9b8a725d515a15946c276a3378", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr] warning: associated function is never used: `correct_neurons_weight`
[INFO] [stdout] running 20 tests
[INFO] [stderr]   --> src/neural_network/layer.rs:64:12
[INFO] [stdout] test neural_network::layer::layer_test::new::should_create_empty_neural_layer ... ok
[INFO] [stderr]    |
[INFO] [stderr] 64 |     pub fn correct_neurons_weight(&mut self, loss_values: &Vec<f64>, learning_rate: &f64) {
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `expected_output`
[INFO] [stderr]  --> src/neural_network/network.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 |     expected_output: Vec<f64>,
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `inputs`
[INFO] [stderr]  --> src/neural_network/network.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 |     inputs: Vec<f64>,
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `learning_rate`
[INFO] [stderr]   --> src/neural_network/network.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 |     learning_rate: f64,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `loss_function`
[INFO] [stderr]   --> src/neural_network/network.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 |     loss_function: fn(expected: &f64, predicted: &f64) -> f64,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `fit`
[INFO] [stderr]   --> src/neural_network/network.rs:27:12
[INFO] [stderr]    |
[INFO] [stderr] 27 |     pub fn fit(&mut self, iterations: i32) {
[INFO] [stderr]    |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `forward_propagation`
[INFO] [stderr]   --> src/neural_network/network.rs:58:8
[INFO] [stderr]    |
[INFO] [stderr] 58 |     fn forward_propagation(&mut self) {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `back_propagation`
[INFO] [stderr]   --> src/neural_network/network.rs:65:8
[INFO] [stderr]    |
[INFO] [stderr] 65 |     fn back_propagation(&mut self) {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 8 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/neural_network-6e3bd4b176f9eb6a
[INFO] [stdout] test neural_network::layer::layer_test::size::should_have_size_ten_for_layer_with_ten_neurons ... ok
[INFO] [stdout] test neural_network::network::network_test::new::should_create_network_with_three_layers ... ok
[INFO] [stdout] test neural_network::network::network_test::new::should_create_network_with_one_layers ... ok
[INFO] [stdout] test neural_network::layer::layer_test::size::should_have_size_one_for_layer_with_one_neuron ... ok
[INFO] [stdout] test neural_network::neuron::neuron_test::calculate_output_value::should_calculate_value_for_changed_weight ... ok
[INFO] [stdout] test neural_network::layer::layer_test::calculate_outputs::should_return_one_output_for_one_neuron ... ok
[INFO] [stdout] test neural_network::neuron::neuron_test::calculate_output_value::should_calculate_value ... ok
[INFO] [stdout] test neural_network::layer::layer_test::calculate_weight_delta::should_return_negative_delta ... ok
[INFO] [stdout] test neural_network::neuron::neuron_test::calculate_new_weight::should_calculate_new_weight_if_weight_exists ... ok
[INFO] [stdout] test neural_network::layer::layer_test::calculate_outputs::should_return_ten_outputs_for_ten_neurons ... ok
[INFO] [stdout] test neural_network::neuron::neuron_test::new::should_create_neuron_with_three_weights ... ok
[INFO] [stdout] test neural_network::layer::layer_test::add_neurons::should_add_one_neuron_to_empty_layer ... ok
[INFO] [stdout] test neural_network::layer::layer_test::add_neurons::should_add_ten_neurons_to_layer_with_neurons ... ok
[INFO] [stdout] test neural_network::layer::layer_test::calculate_weight_delta::should_return_positive_delta ... ok
[INFO] [stdout] test neural_network::neuron::neuron_test::set_weight::should_update_weight_value_if_weight_exists ... ok
[INFO] [stdout] test neural_network::neuron::neuron_test::update_weight::should_update_weight_if_weight_exists ... ok
[INFO] [stdout] test neural_network::neuron::neuron_test::set_weight::should_not_update_weight_value_if_weight_dose_not_exists ... ok
[INFO] [stdout] test neural_network::neuron::neuron_test::update_weight::should_not_update_weight_if_weight_does_not_exists ... ok
[INFO] [stdout] test neural_network::neuron::neuron_test::calculate_new_weight::should_not_calculate_new_weight_if_weight_does_not_exists ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 20 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "ed1f60bbc0176093c890bbfe519d94137fcb6a9b8a725d515a15946c276a3378", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ed1f60bbc0176093c890bbfe519d94137fcb6a9b8a725d515a15946c276a3378", kill_on_drop: false }`
[INFO] [stdout] ed1f60bbc0176093c890bbfe519d94137fcb6a9b8a725d515a15946c276a3378