[INFO] fetching crate fksainetwork 0.2.0...
[INFO] testing fksainetwork-0.2.0 against beta-2026-01-20 for beta-1.94-1
[INFO] extracting crate fksainetwork 0.2.0 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate fksainetwork 0.2.0
[INFO] finished tweaking crates.io crate fksainetwork 0.2.0
[INFO] tweaked toml for crates.io crate fksainetwork 0.2.0 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate fksainetwork 0.2.0 on toolchain beta-2026-01-20
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-01-20" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-01-20" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 23 packages to latest compatible versions
[INFO] [stderr]       Adding bincode v2.0.1 (available: v3.0.0)
[INFO] [stderr]       Adding bincode_derive v2.0.1 (available: v3.0.0)
[INFO] [stderr]       Adding rand v0.8.5 (available: v0.9.2)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-01-20" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-01-20" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fa9b91a47440efdfab81df1b2a660e645d06483780c199138cd1cbab8475f234
[INFO] running `Command { std: "docker" "start" "-a" "fa9b91a47440efdfab81df1b2a660e645d06483780c199138cd1cbab8475f234", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fa9b91a47440efdfab81df1b2a660e645d06483780c199138cd1cbab8475f234", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fa9b91a47440efdfab81df1b2a660e645d06483780c199138cd1cbab8475f234", kill_on_drop: false }`
[INFO] [stdout] fa9b91a47440efdfab81df1b2a660e645d06483780c199138cd1cbab8475f234
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-01-20" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d1473ebda14c9d75972ba9bd8c7c781a15d50ea7bd797a0c5c723c2d8c30867e
[INFO] running `Command { std: "docker" "start" "-a" "d1473ebda14c9d75972ba9bd8c7c781a15d50ea7bd797a0c5c723c2d8c30867e", kill_on_drop: false }`
[INFO] [stderr]    Compiling virtue v0.0.18
[INFO] [stderr]    Compiling unty v0.0.4
[INFO] [stderr]    Compiling bmp v0.5.0
[INFO] [stderr]    Compiling bincode_derive v2.0.1
[INFO] [stderr]    Compiling bincode v2.0.1
[INFO] [stderr]    Compiling fksainetwork v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::cmp::min`
[INFO] [stdout]  --> src/loss.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::cmp::min;
[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 import: `crate::util::max`
[INFO] [stdout]  --> src/loss.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use crate::util::max;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:739:37
[INFO] [stdout]     |
[INFO] [stdout] 739 | ...                   let mut err_term_mat = &mut output_layer.error_terms[value_layer_idx];
[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 does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:740:37
[INFO] [stdout]     |
[INFO] [stdout] 740 | ...                   let mut derivative_mat = &output_layer.learning_val[value_layer_idx];
[INFO] [stdout]     |                           ----^^^^^^^^^^^^^^
[INFO] [stdout]     |                           |
[INFO] [stdout]     |                           help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:741:37
[INFO] [stdout]     |
[INFO] [stdout] 741 | ...                   let mut raw_mat = &output_layer.raws[value_layer_idx];
[INFO] [stdout]     |                           ----^^^^^^^
[INFO] [stdout]     |                           |
[INFO] [stdout]     |                           help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:742:37
[INFO] [stdout]     |
[INFO] [stdout] 742 | ...                   let mut switch_mat = &output_layer.switch[value_layer_idx];
[INFO] [stdout]     |                           ----^^^^^^^^^^
[INFO] [stdout]     |                           |
[INFO] [stdout]     |                           help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:743:37
[INFO] [stdout]     |
[INFO] [stdout] 743 | ...                   let mut pool_mat = &output_layer.pooleds[value_layer_idx];
[INFO] [stdout]     |                           ----^^^^^^^^
[INFO] [stdout]     |                           |
[INFO] [stdout]     |                           help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:803:41
[INFO] [stdout]     |
[INFO] [stdout] 803 | ...                   let mut out = &mut output_layer.normalize_grad[value_layer_idx];
[INFO] [stdout]     |                           ----^^^
[INFO] [stdout]     |                           |
[INFO] [stdout]     |                           help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `error_total` is assigned to, but never used
[INFO] [stdout]    --> src/lib.rs:747:37
[INFO] [stdout]     |
[INFO] [stdout] 747 | ...                   let mut error_total = 0.0f32;
[INFO] [stdout]     |                           ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: consider using `_error_total` instead
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `error_total` is never read
[INFO] [stdout]    --> src/lib.rs:782:37
[INFO] [stdout]     |
[INFO] [stdout] 782 | ...                   error_total = 0.0;
[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: value assigned to `error_total` is never read
[INFO] [stdout]    --> src/lib.rs:807:37
[INFO] [stdout]     |
[INFO] [stdout] 807 | ...                   error_total *= output_layer.normalize_data[value_layer_idx].0;
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `error_total` is never read
[INFO] [stdout]    --> src/lib.rs:794:53
[INFO] [stdout]     |
[INFO] [stdout] 794 | / ...                   error_total += (arr_len as f32 * err_term_mat.get(x, y) -
[INFO] [stdout] 795 | | ...                       error_gamma -
[INFO] [stdout] 796 | | ...                       raw_mat.get(x, y) * error_gamma_times_raw) *
[INFO] [stdout] 797 | | ...                       std_inv_length_inv;
[INFO] [stdout]     | |____________________________________________^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `Matrix` is more private than the item `ConvolutionalNetwork::calculate`
[INFO] [stdout]    --> src/lib.rs:661:13
[INFO] [stdout]     |
[INFO] [stdout] 661 |             pub fn calculate(&mut self, inputs: &[&Matrix]) -> Vec<f32> {
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ method `ConvolutionalNetwork::calculate` is reachable at visibility `pub`
[INFO] [stdout]     |
[INFO] [stdout] note: but type `Matrix` is only usable at visibility `pub(crate)`
[INFO] [stdout]    --> src/util.rs:4:1
[INFO] [stdout]     |
[INFO] [stdout]   4 | pub(crate) struct Matrix {
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     = note: `#[warn(private_interfaces)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `Matrix` is more private than the item `ConvolutionalNetwork::learn`
[INFO] [stdout]    --> src/lib.rs:699:13
[INFO] [stdout]     |
[INFO] [stdout] 699 |             pub fn learn(&mut self, learning_rate: f32, inputs: &Vec<Vec<&Matrix>>, expecteds: &Vec<Vec<f32>>) {
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ method `ConvolutionalNetwork::learn` is reachable at visibility `pub`
[INFO] [stdout]     |
[INFO] [stdout] note: but type `Matrix` is only usable at visibility `pub(crate)`
[INFO] [stdout]    --> src/util.rs:4:1
[INFO] [stdout]     |
[INFO] [stdout]   4 | pub(crate) struct Matrix {
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `loss` is never used
[INFO] [stdout]   --> src/loss.rs:14:19
[INFO] [stdout]    |
[INFO] [stdout] 13 | impl Loss {
[INFO] [stdout]    | --------- method in this implementation
[INFO] [stdout] 14 |     pub(crate) fn loss(&self, result: &[f32], expected: &[f32]) -> f32 {
[INFO] [stdout]    |                   ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.08s
[INFO] running `Command { std: "docker" "inspect" "d1473ebda14c9d75972ba9bd8c7c781a15d50ea7bd797a0c5c723c2d8c30867e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d1473ebda14c9d75972ba9bd8c7c781a15d50ea7bd797a0c5c723c2d8c30867e", kill_on_drop: false }`
[INFO] [stdout] d1473ebda14c9d75972ba9bd8c7c781a15d50ea7bd797a0c5c723c2d8c30867e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-01-20" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e2270a657bbd6c2785d48b01983b15e833fcef906815cb59e9591a695d5db080
[INFO] running `Command { std: "docker" "start" "-a" "e2270a657bbd6c2785d48b01983b15e833fcef906815cb59e9591a695d5db080", kill_on_drop: false }`
[INFO] [stderr]    Compiling fksainetwork v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::cmp::min`
[INFO] [stdout]  --> src/loss.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::cmp::min;
[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 import: `crate::util::max`
[INFO] [stdout]  --> src/loss.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use crate::util::max;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:739:37
[INFO] [stdout]     |
[INFO] [stdout] 739 | ...                   let mut err_term_mat = &mut output_layer.error_terms[value_layer_idx];
[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 does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:740:37
[INFO] [stdout]     |
[INFO] [stdout] 740 | ...                   let mut derivative_mat = &output_layer.learning_val[value_layer_idx];
[INFO] [stdout]     |                           ----^^^^^^^^^^^^^^
[INFO] [stdout]     |                           |
[INFO] [stdout]     |                           help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:741:37
[INFO] [stdout]     |
[INFO] [stdout] 741 | ...                   let mut raw_mat = &output_layer.raws[value_layer_idx];
[INFO] [stdout]     |                           ----^^^^^^^
[INFO] [stdout]     |                           |
[INFO] [stdout]     |                           help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:742:37
[INFO] [stdout]     |
[INFO] [stdout] 742 | ...                   let mut switch_mat = &output_layer.switch[value_layer_idx];
[INFO] [stdout]     |                           ----^^^^^^^^^^
[INFO] [stdout]     |                           |
[INFO] [stdout]     |                           help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:743:37
[INFO] [stdout]     |
[INFO] [stdout] 743 | ...                   let mut pool_mat = &output_layer.pooleds[value_layer_idx];
[INFO] [stdout]     |                           ----^^^^^^^^
[INFO] [stdout]     |                           |
[INFO] [stdout]     |                           help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:803:41
[INFO] [stdout]     |
[INFO] [stdout] 803 | ...                   let mut out = &mut output_layer.normalize_grad[value_layer_idx];
[INFO] [stdout]     |                           ----^^^
[INFO] [stdout]     |                           |
[INFO] [stdout]     |                           help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `error_total` is assigned to, but never used
[INFO] [stdout]    --> src/lib.rs:747:37
[INFO] [stdout]     |
[INFO] [stdout] 747 | ...                   let mut error_total = 0.0f32;
[INFO] [stdout]     |                           ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: consider using `_error_total` instead
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `error_total` is never read
[INFO] [stdout]    --> src/lib.rs:782:37
[INFO] [stdout]     |
[INFO] [stdout] 782 | ...                   error_total = 0.0;
[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: value assigned to `error_total` is never read
[INFO] [stdout]    --> src/lib.rs:807:37
[INFO] [stdout]     |
[INFO] [stdout] 807 | ...                   error_total *= output_layer.normalize_data[value_layer_idx].0;
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `error_total` is never read
[INFO] [stdout]    --> src/lib.rs:794:53
[INFO] [stdout]     |
[INFO] [stdout] 794 | / ...                   error_total += (arr_len as f32 * err_term_mat.get(x, y) -
[INFO] [stdout] 795 | | ...                       error_gamma -
[INFO] [stdout] 796 | | ...                       raw_mat.get(x, y) * error_gamma_times_raw) *
[INFO] [stdout] 797 | | ...                       std_inv_length_inv;
[INFO] [stdout]     | |____________________________________________^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `Matrix` is more private than the item `ConvolutionalNetwork::calculate`
[INFO] [stdout]    --> src/lib.rs:661:13
[INFO] [stdout]     |
[INFO] [stdout] 661 |             pub fn calculate(&mut self, inputs: &[&Matrix]) -> Vec<f32> {
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ method `ConvolutionalNetwork::calculate` is reachable at visibility `pub`
[INFO] [stdout]     |
[INFO] [stdout] note: but type `Matrix` is only usable at visibility `pub(crate)`
[INFO] [stdout]    --> src/util.rs:4:1
[INFO] [stdout]     |
[INFO] [stdout]   4 | pub(crate) struct Matrix {
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     = note: `#[warn(private_interfaces)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `Matrix` is more private than the item `ConvolutionalNetwork::learn`
[INFO] [stdout]    --> src/lib.rs:699:13
[INFO] [stdout]     |
[INFO] [stdout] 699 |             pub fn learn(&mut self, learning_rate: f32, inputs: &Vec<Vec<&Matrix>>, expecteds: &Vec<Vec<f32>>) {
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ method `ConvolutionalNetwork::learn` is reachable at visibility `pub`
[INFO] [stdout]     |
[INFO] [stdout] note: but type `Matrix` is only usable at visibility `pub(crate)`
[INFO] [stdout]    --> src/util.rs:4:1
[INFO] [stdout]     |
[INFO] [stdout]   4 | pub(crate) struct Matrix {
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `loss` is never used
[INFO] [stdout]   --> src/loss.rs:14:19
[INFO] [stdout]    |
[INFO] [stdout] 13 | impl Loss {
[INFO] [stdout]    | --------- method in this implementation
[INFO] [stdout] 14 |     pub(crate) fn loss(&self, result: &[f32], expected: &[f32]) -> f32 {
[INFO] [stdout]    |                   ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::activation::Activation`
[INFO] [stdout]  --> src/tests/dog_cat_face_test.rs:9:9
[INFO] [stdout]   |
[INFO] [stdout] 9 |     use crate::activation::Activation;
[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 import: `crate::initialization::Initialization`
[INFO] [stdout]   --> src/tests/dog_cat_face_test.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 10 |     use crate::initialization::Initialization;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ConvolutionalNetwork`
[INFO] [stdout]   --> src/tests/dog_cat_face_test.rs:12:48
[INFO] [stdout]    |
[INFO] [stdout] 12 |     use crate::network::cnn::{cnn_network_bmp, ConvolutionalNetwork, load_cnn_network, save_cnn_network};
[INFO] [stdout]    |                                                ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::pooling::Pooling`
[INFO] [stdout]   --> src/tests/dog_cat_face_test.rs:13:9
[INFO] [stdout]    |
[INFO] [stdout] 13 |     use crate::pooling::Pooling;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/tests/dog_cat_face_test.rs:148:20
[INFO] [stdout]     |
[INFO] [stdout] 148 |                 if (cur_error < prev_err) {
[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] 148 -                 if (cur_error < prev_err) {
[INFO] [stdout] 148 +                 if cur_error < prev_err {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/tests/dog_cat_face_test.rs:153:24
[INFO] [stdout]     |
[INFO] [stdout] 153 |                     if (chance == 0) {
[INFO] [stdout]     |                        ^           ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 153 -                     if (chance == 0) {
[INFO] [stdout] 153 +                     if chance == 0 {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::cmp::min`
[INFO] [stdout]  --> src/loss.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::cmp::min;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::util::max`
[INFO] [stdout]  --> src/loss.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use crate::util::max;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable statement
[INFO] [stdout]    --> src/tests/dog_cat_face_test.rs:152:21
[INFO] [stdout]     |
[INFO] [stdout] 151 |                     break;
[INFO] [stdout]     |                     ----- any code following this expression is unreachable
[INFO] [stdout] 152 |                     chance -= 1;
[INFO] [stdout]     |                     ^^^^^^^^^^^^ unreachable statement
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/tests/dog_cat_face_test.rs:116:17
[INFO] [stdout]     |
[INFO] [stdout] 116 |             let mut chance = 3;
[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 does not need to be mutable
[INFO] [stdout]    --> src/tests/dog_cat_face_test.rs:117:17
[INFO] [stdout]     |
[INFO] [stdout] 117 |             let mut learning_rate = 0.01;
[INFO] [stdout]     |                 ----^^^^^^^^^^^^^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `chance`
[INFO] [stdout]    --> src/tests/dog_cat_face_test.rs:116:17
[INFO] [stdout]     |
[INFO] [stdout] 116 |             let mut chance = 3;
[INFO] [stdout]     |                 ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_chance`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:739:37
[INFO] [stdout]     |
[INFO] [stdout] 739 | ...                   let mut err_term_mat = &mut output_layer.error_terms[value_layer_idx];
[INFO] [stdout]     |                           ----^^^^^^^^^^^^
[INFO] [stdout]     |                           |
[INFO] [stdout]     |                           help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:740:37
[INFO] [stdout]     |
[INFO] [stdout] 740 | ...                   let mut derivative_mat = &output_layer.learning_val[value_layer_idx];
[INFO] [stdout]     |                           ----^^^^^^^^^^^^^^
[INFO] [stdout]     |                           |
[INFO] [stdout]     |                           help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:741:37
[INFO] [stdout]     |
[INFO] [stdout] 741 | ...                   let mut raw_mat = &output_layer.raws[value_layer_idx];
[INFO] [stdout]     |                           ----^^^^^^^
[INFO] [stdout]     |                           |
[INFO] [stdout]     |                           help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:742:37
[INFO] [stdout]     |
[INFO] [stdout] 742 | ...                   let mut switch_mat = &output_layer.switch[value_layer_idx];
[INFO] [stdout]     |                           ----^^^^^^^^^^
[INFO] [stdout]     |                           |
[INFO] [stdout]     |                           help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:743:37
[INFO] [stdout]     |
[INFO] [stdout] 743 | ...                   let mut pool_mat = &output_layer.pooleds[value_layer_idx];
[INFO] [stdout]     |                           ----^^^^^^^^
[INFO] [stdout]     |                           |
[INFO] [stdout]     |                           help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:803:41
[INFO] [stdout]     |
[INFO] [stdout] 803 | ...                   let mut out = &mut output_layer.normalize_grad[value_layer_idx];
[INFO] [stdout]     |                           ----^^^
[INFO] [stdout]     |                           |
[INFO] [stdout]     |                           help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `error_total` is assigned to, but never used
[INFO] [stdout]    --> src/lib.rs:747:37
[INFO] [stdout]     |
[INFO] [stdout] 747 | ...                   let mut error_total = 0.0f32;
[INFO] [stdout]     |                           ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: consider using `_error_total` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `error_total` is never read
[INFO] [stdout]    --> src/lib.rs:782:37
[INFO] [stdout]     |
[INFO] [stdout] 782 | ...                   error_total = 0.0;
[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: value assigned to `error_total` is never read
[INFO] [stdout]    --> src/lib.rs:807:37
[INFO] [stdout]     |
[INFO] [stdout] 807 | ...                   error_total *= output_layer.normalize_data[value_layer_idx].0;
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `error_total` is never read
[INFO] [stdout]    --> src/lib.rs:794:53
[INFO] [stdout]     |
[INFO] [stdout] 794 | / ...                   error_total += (arr_len as f32 * err_term_mat.get(x, y) -
[INFO] [stdout] 795 | | ...                       error_gamma -
[INFO] [stdout] 796 | | ...                       raw_mat.get(x, y) * error_gamma_times_raw) *
[INFO] [stdout] 797 | | ...                       std_inv_length_inv;
[INFO] [stdout]     | |____________________________________________^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `Matrix` is more private than the item `ConvolutionalNetwork::calculate`
[INFO] [stdout]    --> src/lib.rs:661:13
[INFO] [stdout]     |
[INFO] [stdout] 661 |             pub fn calculate(&mut self, inputs: &[&Matrix]) -> Vec<f32> {
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ method `ConvolutionalNetwork::calculate` is reachable at visibility `pub`
[INFO] [stdout]     |
[INFO] [stdout] note: but type `Matrix` is only usable at visibility `pub(crate)`
[INFO] [stdout]    --> src/util.rs:4:1
[INFO] [stdout]     |
[INFO] [stdout]   4 | pub(crate) struct Matrix {
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     = note: `#[warn(private_interfaces)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `Matrix` is more private than the item `ConvolutionalNetwork::learn`
[INFO] [stdout]    --> src/lib.rs:699:13
[INFO] [stdout]     |
[INFO] [stdout] 699 |             pub fn learn(&mut self, learning_rate: f32, inputs: &Vec<Vec<&Matrix>>, expecteds: &Vec<Vec<f32>>) {
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ method `ConvolutionalNetwork::learn` is reachable at visibility `pub`
[INFO] [stdout]     |
[INFO] [stdout] note: but type `Matrix` is only usable at visibility `pub(crate)`
[INFO] [stdout]    --> src/util.rs:4:1
[INFO] [stdout]     |
[INFO] [stdout]   4 | pub(crate) struct Matrix {
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.41s
[INFO] running `Command { std: "docker" "inspect" "e2270a657bbd6c2785d48b01983b15e833fcef906815cb59e9591a695d5db080", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e2270a657bbd6c2785d48b01983b15e833fcef906815cb59e9591a695d5db080", kill_on_drop: false }`
[INFO] [stdout] e2270a657bbd6c2785d48b01983b15e833fcef906815cb59e9591a695d5db080
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-01-20" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 3b5aa81f5b4e6471d402fc7a930d7b821fd62e8fca9513d737153a2e2356163f
[INFO] running `Command { std: "docker" "start" "-a" "3b5aa81f5b4e6471d402fc7a930d7b821fd62e8fca9513d737153a2e2356163f", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `std::cmp::min`
[INFO] [stderr]  --> src/loss.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::cmp::min;
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::util::max`
[INFO] [stderr]  --> src/loss.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use crate::util::max;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/lib.rs:739:37
[INFO] [stderr]     |
[INFO] [stderr] 739 | ...                   let mut err_term_mat = &mut output_layer.error_terms[value_layer_idx];
[INFO] [stderr]     |                           ----^^^^^^^^^^^^
[INFO] [stderr]     |                           |
[INFO] [stderr]     |                           help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/lib.rs:740:37
[INFO] [stderr]     |
[INFO] [stderr] 740 | ...                   let mut derivative_mat = &output_layer.learning_val[value_layer_idx];
[INFO] [stderr]     |                           ----^^^^^^^^^^^^^^
[INFO] [stderr]     |                           |
[INFO] [stderr]     |                           help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/lib.rs:741:37
[INFO] [stderr]     |
[INFO] [stderr] 741 | ...                   let mut raw_mat = &output_layer.raws[value_layer_idx];
[INFO] [stderr]     |                           ----^^^^^^^
[INFO] [stderr]     |                           |
[INFO] [stderr]     |                           help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/lib.rs:742:37
[INFO] [stderr]     |
[INFO] [stderr] 742 | ...                   let mut switch_mat = &output_layer.switch[value_layer_idx];
[INFO] [stderr]     |                           ----^^^^^^^^^^
[INFO] [stderr]     |                           |
[INFO] [stderr]     |                           help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/lib.rs:743:37
[INFO] [stderr]     |
[INFO] [stderr] 743 | ...                   let mut pool_mat = &output_layer.pooleds[value_layer_idx];
[INFO] [stderr]     |                           ----^^^^^^^^
[INFO] [stderr]     |                           |
[INFO] [stderr]     |                           help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/lib.rs:803:41
[INFO] [stderr]     |
[INFO] [stderr] 803 | ...                   let mut out = &mut output_layer.normalize_grad[value_layer_idx];
[INFO] [stderr]     |                           ----^^^
[INFO] [stderr]     |                           |
[INFO] [stderr]     |                           help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `error_total` is assigned to, but never used
[INFO] [stderr]    --> src/lib.rs:747:37
[INFO] [stderr]     |
[INFO] [stderr] 747 | ...                   let mut error_total = 0.0f32;
[INFO] [stderr]     |                           ^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: consider using `_error_total` instead
[INFO] [stderr]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `error_total` is never read
[INFO] [stderr]    --> src/lib.rs:782:37
[INFO] [stderr]     |
[INFO] [stderr] 782 | ...                   error_total = 0.0;
[INFO] [stderr]     |                       ^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr]     = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `error_total` is never read
[INFO] [stderr]    --> src/lib.rs:807:37
[INFO] [stderr]     |
[INFO] [stderr] 807 | ...                   error_total *= output_layer.normalize_data[value_layer_idx].0;
[INFO] [stderr]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `error_total` is never read
[INFO] [stderr]    --> src/lib.rs:794:53
[INFO] [stderr]     |
[INFO] [stderr] 794 | / ...                   error_total += (arr_len as f32 * err_term_mat.get(x, y) -
[INFO] [stderr] 795 | | ...                       error_gamma -
[INFO] [stderr] 796 | | ...                       raw_mat.get(x, y) * error_gamma_times_raw) *
[INFO] [stderr] 797 | | ...                       std_inv_length_inv;
[INFO] [stderr]     | |____________________________________________^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: type `Matrix` is more private than the item `ConvolutionalNetwork::calculate`
[INFO] [stderr]    --> src/lib.rs:661:13
[INFO] [stderr]     |
[INFO] [stderr] 661 |             pub fn calculate(&mut self, inputs: &[&Matrix]) -> Vec<f32> {
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ method `ConvolutionalNetwork::calculate` is reachable at visibility `pub`
[INFO] [stderr]     |
[INFO] [stderr] note: but type `Matrix` is only usable at visibility `pub(crate)`
[INFO] [stderr]    --> src/util.rs:4:1
[INFO] [stderr]     |
[INFO] [stderr]   4 | pub(crate) struct Matrix {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     = note: `#[warn(private_interfaces)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: type `Matrix` is more private than the item `ConvolutionalNetwork::learn`
[INFO] [stderr]    --> src/lib.rs:699:13
[INFO] [stderr]     |
[INFO] [stderr] 699 |             pub fn learn(&mut self, learning_rate: f32, inputs: &Vec<Vec<&Matrix>>, expecteds: &Vec<Vec<f32>>) {
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ method `ConvolutionalNetwork::learn` is reachable at visibility `pub`
[INFO] [stderr]     |
[INFO] [stderr] note: but type `Matrix` is only usable at visibility `pub(crate)`
[INFO] [stderr]    --> src/util.rs:4:1
[INFO] [stderr]     |
[INFO] [stderr]   4 | pub(crate) struct Matrix {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method `loss` is never used
[INFO] [stderr]   --> src/loss.rs:14:19
[INFO] [stderr]    |
[INFO] [stderr] 13 | impl Loss {
[INFO] [stderr]    | --------- method in this implementation
[INFO] [stderr] 14 |     pub(crate) fn loss(&self, result: &[f32], expected: &[f32]) -> f32 {
[INFO] [stderr]    |                   ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `fksainetwork` (lib) generated 15 warnings (run `cargo fix --lib -p fksainetwork` to apply 8 suggestions)
[INFO] [stderr] warning: unused import: `crate::activation::Activation`
[INFO] [stderr]  --> src/tests/dog_cat_face_test.rs:9:9
[INFO] [stderr]   |
[INFO] [stderr] 9 |     use crate::activation::Activation;
[INFO] [stderr]   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::initialization::Initialization`
[INFO] [stderr]   --> src/tests/dog_cat_face_test.rs:10:9
[INFO] [stderr]    |
[INFO] [stderr] 10 |     use crate::initialization::Initialization;
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `ConvolutionalNetwork`
[INFO] [stderr]   --> src/tests/dog_cat_face_test.rs:12:48
[INFO] [stderr]    |
[INFO] [stderr] 12 |     use crate::network::cnn::{cnn_network_bmp, ConvolutionalNetwork, load_cnn_network, save_cnn_network};
[INFO] [stderr]    |                                                ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::pooling::Pooling`
[INFO] [stderr]   --> src/tests/dog_cat_face_test.rs:13:9
[INFO] [stderr]    |
[INFO] [stderr] 13 |     use crate::pooling::Pooling;
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `if` condition
[INFO] [stderr]    --> src/tests/dog_cat_face_test.rs:148:20
[INFO] [stderr]     |
[INFO] [stderr] 148 |                 if (cur_error < prev_err) {
[INFO] [stderr]     |                    ^                    ^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 148 -                 if (cur_error < prev_err) {
[INFO] [stderr] 148 +                 if cur_error < prev_err {
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `if` condition
[INFO] [stderr]    --> src/tests/dog_cat_face_test.rs:153:24
[INFO] [stderr]     |
[INFO] [stderr] 153 |                     if (chance == 0) {
[INFO] [stderr]     |                        ^           ^
[INFO] [stderr]     |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 153 -                     if (chance == 0) {
[INFO] [stderr] 153 +                     if chance == 0 {
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::cmp::min`
[INFO] [stderr]  --> src/loss.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::cmp::min;
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable statement
[INFO] [stderr]    --> src/tests/dog_cat_face_test.rs:152:21
[INFO] [stderr]     |
[INFO] [stderr] 151 |                     break;
[INFO] [stderr]     |                     ----- any code following this expression is unreachable
[INFO] [stderr] 152 |                     chance -= 1;
[INFO] [stderr]     |                     ^^^^^^^^^^^^ unreachable statement
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unreachable_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/tests/dog_cat_face_test.rs:116:17
[INFO] [stderr]     |
[INFO] [stderr] 116 |             let mut chance = 3;
[INFO] [stderr]     |                 ----^^^^^^
[INFO] [stderr]     |                 |
[INFO] [stderr]     |                 help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/tests/dog_cat_face_test.rs:117:17
[INFO] [stderr]     |
[INFO] [stderr] 117 |             let mut learning_rate = 0.01;
[INFO] [stderr]     |                 ----^^^^^^^^^^^^^
[INFO] [stderr]     |                 |
[INFO] [stderr]     |                 help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `chance`
[INFO] [stderr]    --> src/tests/dog_cat_face_test.rs:116:17
[INFO] [stderr]     |
[INFO] [stderr] 116 |             let mut chance = 3;
[INFO] [stderr]     |                 ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_chance`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/lib.rs:739:37
[INFO] [stderr]     |
[INFO] [stderr] 739 | ...                   let mut err_term_mat = &mut output_layer.error_terms[value_layer_idx];
[INFO] [stderr]     |                           ----^^^^^^^^^^^^
[INFO] [stderr]     |                           |
[INFO] [stderr]     |                           help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `error_total` is assigned to, but never used
[INFO] [stderr]    --> src/lib.rs:747:37
[INFO] [stderr]     |
[INFO] [stderr] 747 | ...                   let mut error_total = 0.0f32;
[INFO] [stderr]     |                           ^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: consider using `_error_total` instead
[INFO] [stderr] 
[INFO] [stderr] warning: `fksainetwork` (lib test) generated 24 warnings (11 duplicates) (run `cargo fix --lib -p fksainetwork --tests` to apply 11 suggestions)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/fksainetwork-795f855c95fe05d8)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test tests::dog_cat_face_test::image_recognition_test::main ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- tests::dog_cat_face_test::image_recognition_test::main stdout ----
[INFO] [stdout] 
[INFO] [stdout] thread 'tests::dog_cat_face_test::image_recognition_test::main' (25) panicked at src/lib.rs:968:39:
[INFO] [stdout] Unable to read file: Os { code: 2, kind: NotFound, message: "No such file or directory" }
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x5636bf7992b2 - std::backtrace_rs::backtrace::libunwind::trace::hf0bd46b30bc61685
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stdout]    1:     0x5636bf7992b2 - std::backtrace_rs::backtrace::trace_unsynchronized::h1d1fbb72ad89d7b7
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stdout]    2:     0x5636bf7992b2 - std::sys::backtrace::_print_fmt::he38b6f68ca847f47
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/sys/backtrace.rs:74:9
[INFO] [stdout]    3:     0x5636bf7992b2 - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::hb7e843cde1bc81a3
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/sys/backtrace.rs:44:26
[INFO] [stdout]    4:     0x5636bf7aa79a - core::fmt::rt::Argument::fmt::hc1dd77ac64f2688c
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/core/src/fmt/rt.rs:152:76
[INFO] [stdout]    5:     0x5636bf7aa79a - core::fmt::write::h952c506e2dbe9cff
[INFO] [stdout]    6:     0x5636bf767866 - std::io::default_write_fmt::hd23bd8145c03a23a
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/io/mod.rs:639:11
[INFO] [stdout]    7:     0x5636bf767866 - std::io::Write::write_fmt::hdd3314a2bd8a34bd
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/io/mod.rs:1994:13
[INFO] [stdout]    8:     0x5636bf778399 - std::sys::backtrace::BacktraceLock::print::h1079b82381c2c252
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/sys/backtrace.rs:47:9
[INFO] [stdout]    9:     0x5636bf778399 - std::panicking::default_hook::{{closure}}::h85cb76b8462c00f2
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/panicking.rs:292:27
[INFO] [stdout]   10:     0x5636bf778231 - std::panicking::default_hook::h0134d220cc034c02
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/panicking.rs:316:9
[INFO] [stdout]   11:     0x5636bf6f92fe - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::hb2e68dca3970e3ca
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/alloc/src/boxed.rs:2220:9
[INFO] [stdout]   12:     0x5636bf6f92fe - test::test_main_with_exit_callback::{{closure}}::ha7ec2063a2565ec3
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/test/src/lib.rs:145:21
[INFO] [stdout]   13:     0x5636bf778612 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::haebee478d0f56cf4
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/alloc/src/boxed.rs:2220:9
[INFO] [stdout]   14:     0x5636bf778612 - std::panicking::panic_with_hook::h8119b6db1fef734f
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/panicking.rs:833:13
[INFO] [stdout]   15:     0x5636bf778458 - std::panicking::panic_handler::{{closure}}::h24f5360b91482c0e
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/panicking.rs:698:13
[INFO] [stdout]   16:     0x5636bf773869 - std::sys::backtrace::__rust_end_short_backtrace::h4e60c5cbd1bd0108
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/sys/backtrace.rs:182:18
[INFO] [stdout]   17:     0x5636bf75b29d - __rustc[e4c6931bd8050421]::rust_begin_unwind
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/panicking.rs:689:5
[INFO] [stdout]   18:     0x5636bf7b1dcc - core::panicking::panic_fmt::hb1614a3ff6840071
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/core/src/panicking.rs:80:14
[INFO] [stdout]   19:     0x5636bf7b15e2 - core::result::unwrap_failed::h7d4c34940aded59c
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/core/src/result.rs:1867:5
[INFO] [stdout]   20:     0x5636bf6b618c - core::result::Result<T,E>::expect::hd2bcff0852d27161
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/core/src/result.rs:1185:23
[INFO] [stdout]   21:     0x5636bf6cd367 - fksainetwork::network::cnn::load_cnn_network::h6876ff144694898e
[INFO] [stdout]                                at /opt/rustwide/workdir/src/lib.rs:968:39
[INFO] [stdout]   22:     0x5636bf6ac976 - fksainetwork::tests::dog_cat_face_test::image_recognition_test::main::h775adb7254f762df
[INFO] [stdout]                                at /opt/rustwide/workdir/src/tests/dog_cat_face_test.rs:86:9
[INFO] [stdout]   23:     0x5636bf6add17 - fksainetwork::tests::dog_cat_face_test::image_recognition_test::main::{{closure}}::h576d965eaa74bc18
[INFO] [stdout]                                at /opt/rustwide/workdir/src/tests/dog_cat_face_test.rs:72:14
[INFO] [stdout]   24:     0x5636bf6c0a16 - core::ops::function::FnOnce::call_once::h817915aebaa7e2a3
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   25:     0x5636bf6f90fb - core::ops::function::FnOnce::call_once::hefaf63600cd43d2a
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   26:     0x5636bf6f90fb - test::__rust_begin_short_backtrace::he30322a73a0e9ea6
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/test/src/lib.rs:663:18
[INFO] [stdout]   27:     0x5636bf70caca - test::run_test_in_process::{{closure}}::hdea3ab8d0243ef36
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/test/src/lib.rs:686:74
[INFO] [stdout]   28:     0x5636bf70caca - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h66d192f42498ffce
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/core/src/panic/unwind_safe.rs:274:9
[INFO] [stdout]   29:     0x5636bf70caca - std::panicking::catch_unwind::do_call::h822e18e8d3a6bb65
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/panicking.rs:581:40
[INFO] [stdout]   30:     0x5636bf70caca - std::panicking::catch_unwind::h54b1de7ceab578bf
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/panicking.rs:544:19
[INFO] [stdout]   31:     0x5636bf70caca - std::panic::catch_unwind::h60c29b7a9d0246b1
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/panic.rs:359:14
[INFO] [stdout]   32:     0x5636bf70caca - test::run_test_in_process::h6099b5f871379b13
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/test/src/lib.rs:686:27
[INFO] [stdout]   33:     0x5636bf70caca - test::run_test::{{closure}}::h926ce0a38281a4c8
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/test/src/lib.rs:607:43
[INFO] [stdout]   34:     0x5636bf6e6f24 - test::run_test::{{closure}}::h508de21a9afc7140
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/test/src/lib.rs:637:41
[INFO] [stdout]   35:     0x5636bf6e6f24 - std::sys::backtrace::__rust_begin_short_backtrace::h6e2f5c39ca00735a
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/sys/backtrace.rs:166:18
[INFO] [stdout]   36:     0x5636bf6ea7e2 - std::thread::lifecycle::spawn_unchecked::{{closure}}::{{closure}}::h133e44f0e5802c14
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/thread/lifecycle.rs:91:13
[INFO] [stdout]   37:     0x5636bf6ea7e2 - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h4718c1285283955c
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/core/src/panic/unwind_safe.rs:274:9
[INFO] [stdout]   38:     0x5636bf6ea7e2 - std::panicking::catch_unwind::do_call::h0bba3937b4892238
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/panicking.rs:581:40
[INFO] [stdout]   39:     0x5636bf6ea7e2 - std::panicking::catch_unwind::h5b31cab5fb8c5d7f
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/panicking.rs:544:19
[INFO] [stdout]   40:     0x5636bf6ea7e2 - std::panic::catch_unwind::hb2fa05d52ed0124e
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/panic.rs:359:14
[INFO] [stdout]   41:     0x5636bf6ea7e2 - std::thread::lifecycle::spawn_unchecked::{{closure}}::hf401cf5ff501bd29
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/thread/lifecycle.rs:89:26
[INFO] [stdout]   42:     0x5636bf6ea7e2 - core::ops::function::FnOnce::call_once{{vtable.shim}}::h160022e94ce3b0bb
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   43:     0x5636bf76e9bf - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::hf234e0d1d1d272ba
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/alloc/src/boxed.rs:2206:9
[INFO] [stdout]   44:     0x5636bf76e9bf - std::sys::thread::unix::Thread::new::thread_start::h106a295241840d3b
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/sys/thread/unix.rs:127:17
[INFO] [stdout]   45:     0x771c34112aa4 - <unknown>
[INFO] [stdout]   46:     0x771c3419fa64 - clone
[INFO] [stdout]   47:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     tests::dog_cat_face_test::image_recognition_test::main
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.06s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass `--lib`
[INFO] running `Command { std: "docker" "inspect" "3b5aa81f5b4e6471d402fc7a930d7b821fd62e8fca9513d737153a2e2356163f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3b5aa81f5b4e6471d402fc7a930d7b821fd62e8fca9513d737153a2e2356163f", kill_on_drop: false }`
[INFO] [stdout] 3b5aa81f5b4e6471d402fc7a930d7b821fd62e8fca9513d737153a2e2356163f
