[INFO] cloning repository https://github.com/thecoldstone/nn-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/thecoldstone/nn-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthecoldstone%2Fnn-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthecoldstone%2Fnn-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] fb4783a7b0958f2e7272bc8c0fb1c74b18ebd501
[INFO] testing thecoldstone/nn-rust against nightly-2025-01-18+rustflags=-Zrandomize-layout for randomize-layout-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthecoldstone%2Fnn-rust" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/thecoldstone/nn-rust on toolchain nightly-2025-01-18
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+nightly-2025-01-18" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/thecoldstone/nn-rust
[INFO] finished tweaking git repo https://github.com/thecoldstone/nn-rust
[INFO] tweaked toml for git repo https://github.com/thecoldstone/nn-rust written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/thecoldstone/nn-rust 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" "+nightly-2025-01-18" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:819108c5571ea2e421544af4d832f968d213c87fbe3707a016657f43d2f853bc" "/opt/rustwide/cargo-home/bin/cargo" "+nightly-2025-01-18" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3cc9e038426d1d3f61f5e24f9b56d4e53c18bcf7b0ea0ddbffc1d84bbdd89d11
[INFO] running `Command { std: "docker" "start" "-a" "3cc9e038426d1d3f61f5e24f9b56d4e53c18bcf7b0ea0ddbffc1d84bbdd89d11", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3cc9e038426d1d3f61f5e24f9b56d4e53c18bcf7b0ea0ddbffc1d84bbdd89d11", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3cc9e038426d1d3f61f5e24f9b56d4e53c18bcf7b0ea0ddbffc1d84bbdd89d11", kill_on_drop: false }`
[INFO] [stdout] 3cc9e038426d1d3f61f5e24f9b56d4e53c18bcf7b0ea0ddbffc1d84bbdd89d11
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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=forbid -Zrandomize-layout" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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@sha256:819108c5571ea2e421544af4d832f968d213c87fbe3707a016657f43d2f853bc" "/opt/rustwide/cargo-home/bin/cargo" "+nightly-2025-01-18" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cdcc73d6ca9dbef5f05a17f9af099ca6860679339cf795c57016fbe2a9ed7eed
[INFO] running `Command { std: "docker" "start" "-a" "cdcc73d6ca9dbef5f05a17f9af099ca6860679339cf795c57016fbe2a9ed7eed", kill_on_drop: false }`
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling autocfg v1.3.0
[INFO] [stderr]    Compiling libc v0.2.155
[INFO] [stderr]    Compiling libm v0.2.8
[INFO] [stderr]    Compiling semver v1.0.23
[INFO] [stderr]    Compiling pkg-config v0.3.30
[INFO] [stderr]    Compiling simd-adler32 v0.3.7
[INFO] [stderr]    Compiling proc-macro2 v1.0.86
[INFO] [stderr]    Compiling unicode-ident v1.0.12
[INFO] [stderr]    Compiling cc v1.0.101
[INFO] [stderr]    Compiling adler v1.0.2
[INFO] [stderr]    Compiling miniz_oxide v0.7.4
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling crc32fast v1.4.2
[INFO] [stderr]    Compiling yeslogic-fontconfig-sys v5.0.0
[INFO] [stderr]    Compiling rustc_version v0.4.0
[INFO] [stderr]    Compiling flate2 v1.0.30
[INFO] [stderr]    Compiling getrandom v0.2.15
[INFO] [stderr]    Compiling quote v1.0.36
[INFO] [stderr]    Compiling matrixmultiply v0.3.8
[INFO] [stderr]    Compiling pathfinder_simd v0.5.3
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling fdeflate v0.3.4
[INFO] [stderr]    Compiling libloading v0.8.4
[INFO] [stderr]    Compiling bitflags v1.3.2
[INFO] [stderr]    Compiling byteorder v1.5.0
[INFO] [stderr]    Compiling color_quant v1.1.0
[INFO] [stderr]    Compiling ppv-lite86 v0.2.17
[INFO] [stderr]    Compiling cstr v0.2.12
[INFO] [stderr]    Compiling dlib v0.5.2
[INFO] [stderr]    Compiling freetype-sys v0.20.1
[INFO] [stderr]    Compiling dirs-sys-next v0.1.2
[INFO] [stderr]    Compiling rawpointer v0.2.1
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[INFO] [stderr]    Compiling jpeg-decoder v0.3.1
[INFO] [stderr]    Compiling plotters-backend v0.3.6
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[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling png v0.17.13
[INFO] [stderr]    Compiling log v0.4.22
[INFO] [stderr]    Compiling bytemuck v1.16.1
[INFO] [stderr]    Compiling once_cell v1.19.0
[INFO] [stderr]    Compiling font-kit v0.13.2
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling pathfinder_geometry v0.5.1
[INFO] [stderr]    Compiling gif v0.12.0
[INFO] [stderr]    Compiling image v0.24.9
[INFO] [stderr]    Compiling dirs-next v2.0.0
[INFO] [stderr]    Compiling walkdir v2.5.0
[INFO] [stderr]    Compiling num-complex v0.4.6
[INFO] [stderr]    Compiling num-integer v0.1.46
[INFO] [stderr]    Compiling lazy_static v1.5.0
[INFO] [stderr]    Compiling iana-time-zone v0.1.60
[INFO] [stderr]    Compiling float-ord v0.3.2
[INFO] [stderr]    Compiling bitflags v2.6.0
[INFO] [stderr]    Compiling ndarray v0.15.6
[INFO] [stderr]    Compiling chrono v0.4.38
[INFO] [stderr]    Compiling rand_distr v0.4.3
[INFO] [stderr]    Compiling plotters-svg v0.3.6
[INFO] [stderr]    Compiling ttf-parser v0.20.0
[INFO] [stderr]    Compiling plotters-bitmap v0.3.6
[INFO] [stderr]    Compiling ndarray-rand v0.14.0
[INFO] [stderr]    Compiling plotters v0.3.6
[INFO] [stderr]    Compiling nn v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]  --> src/spiral.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub fn sin(mut matrix: Array<f64, Ix1>) -> Array<f64, Ix1> {
[INFO] [stdout]   |            ----^^^^^^
[INFO] [stdout]   |            |
[INFO] [stdout]   |            help: remove this `mut`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/spiral.rs:10:12
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub fn cos(mut matrix: Array<f64, Ix1>) -> Array<f64, Ix1> {
[INFO] [stdout]    |            ----^^^^^^
[INFO] [stdout]    |            |
[INFO] [stdout]    |            help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `y`
[INFO] [stdout]   --> src/main.rs:17:25
[INFO] [stdout]    |
[INFO] [stdout] 17 | fn draw(x: Array2<f64>, y: Array1<u8>) -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stdout]    |                         ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `y`
[INFO] [stdout]   --> src/main.rs:46:13
[INFO] [stdout]    |
[INFO] [stdout] 46 |     let (x, y) = spiral::create_data(100, 3);
[INFO] [stdout]    |             ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `draw` is never used
[INFO] [stdout]   --> src/main.rs:17:4
[INFO] [stdout]    |
[INFO] [stdout] 17 | fn draw(x: Array2<f64>, y: Array1<u8>) -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stdout]    |    ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `inputs` and `neurons` are never read
[INFO] [stdout]  --> src/dense_layer.rs:6:9
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct Neuron {
[INFO] [stdout]   |            ------ fields in this struct
[INFO] [stdout] 6 |     pub inputs: usize,
[INFO] [stdout]   |         ^^^^^^
[INFO] [stdout] 7 |     pub neurons: usize,
[INFO] [stdout]   |         ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Neuron` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `neuron` is never read
[INFO] [stdout]   --> src/dense_layer.rs:14:9
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub struct LayerDense {
[INFO] [stdout]    |            ---------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 14 |     pub neuron: Neuron,
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `LayerDense` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 46.08s
[INFO] running `Command { std: "docker" "inspect" "cdcc73d6ca9dbef5f05a17f9af099ca6860679339cf795c57016fbe2a9ed7eed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cdcc73d6ca9dbef5f05a17f9af099ca6860679339cf795c57016fbe2a9ed7eed", kill_on_drop: false }`
[INFO] [stdout] cdcc73d6ca9dbef5f05a17f9af099ca6860679339cf795c57016fbe2a9ed7eed
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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=forbid -Zrandomize-layout" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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@sha256:819108c5571ea2e421544af4d832f968d213c87fbe3707a016657f43d2f853bc" "/opt/rustwide/cargo-home/bin/cargo" "+nightly-2025-01-18" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] df65e7b6a324b69c3d4d5a1a6639a2b694541e0cc0115e20eefa769caf7004c9
[INFO] running `Command { std: "docker" "start" "-a" "df65e7b6a324b69c3d4d5a1a6639a2b694541e0cc0115e20eefa769caf7004c9", kill_on_drop: false }`
[INFO] [stderr]    Compiling nn v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]  --> src/spiral.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub fn sin(mut matrix: Array<f64, Ix1>) -> Array<f64, Ix1> {
[INFO] [stdout]   |            ----^^^^^^
[INFO] [stdout]   |            |
[INFO] [stdout]   |            help: remove this `mut`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/spiral.rs:10:12
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub fn cos(mut matrix: Array<f64, Ix1>) -> Array<f64, Ix1> {
[INFO] [stdout]    |            ----^^^^^^
[INFO] [stdout]    |            |
[INFO] [stdout]    |            help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `y`
[INFO] [stdout]   --> src/main.rs:17:25
[INFO] [stdout]    |
[INFO] [stdout] 17 | fn draw(x: Array2<f64>, y: Array1<u8>) -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stdout]    |                         ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `y`
[INFO] [stdout]   --> src/main.rs:46:13
[INFO] [stdout]    |
[INFO] [stdout] 46 |     let (x, y) = spiral::create_data(100, 3);
[INFO] [stdout]    |             ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `draw` is never used
[INFO] [stdout]   --> src/main.rs:17:4
[INFO] [stdout]    |
[INFO] [stdout] 17 | fn draw(x: Array2<f64>, y: Array1<u8>) -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stdout]    |    ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `inputs` and `neurons` are never read
[INFO] [stdout]  --> src/dense_layer.rs:6:9
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct Neuron {
[INFO] [stdout]   |            ------ fields in this struct
[INFO] [stdout] 6 |     pub inputs: usize,
[INFO] [stdout]   |         ^^^^^^
[INFO] [stdout] 7 |     pub neurons: usize,
[INFO] [stdout]   |         ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Neuron` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `neuron` is never read
[INFO] [stdout]   --> src/dense_layer.rs:14:9
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub struct LayerDense {
[INFO] [stdout]    |            ---------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 14 |     pub neuron: Neuron,
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `LayerDense` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.73s
[INFO] running `Command { std: "docker" "inspect" "df65e7b6a324b69c3d4d5a1a6639a2b694541e0cc0115e20eefa769caf7004c9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "df65e7b6a324b69c3d4d5a1a6639a2b694541e0cc0115e20eefa769caf7004c9", kill_on_drop: false }`
[INFO] [stdout] df65e7b6a324b69c3d4d5a1a6639a2b694541e0cc0115e20eefa769caf7004c9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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=forbid -Zrandomize-layout" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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@sha256:819108c5571ea2e421544af4d832f968d213c87fbe3707a016657f43d2f853bc" "/opt/rustwide/cargo-home/bin/cargo" "+nightly-2025-01-18" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 20fbcc68d9a2768f9103744a04ef789c425c8494820d9a8615660d7798f8e2fb
[INFO] running `Command { std: "docker" "start" "-a" "20fbcc68d9a2768f9103744a04ef789c425c8494820d9a8615660d7798f8e2fb", kill_on_drop: false }`
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]  --> src/spiral.rs:6:12
[INFO] [stderr]   |
[INFO] [stderr] 6 | pub fn sin(mut matrix: Array<f64, Ix1>) -> Array<f64, Ix1> {
[INFO] [stderr]   |            ----^^^^^^
[INFO] [stderr]   |            |
[INFO] [stderr]   |            help: remove this `mut`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/spiral.rs:10:12
[INFO] [stderr]    |
[INFO] [stderr] 10 | pub fn cos(mut matrix: Array<f64, Ix1>) -> Array<f64, Ix1> {
[INFO] [stderr]    |            ----^^^^^^
[INFO] [stderr]    |            |
[INFO] [stderr]    |            help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `y`
[INFO] [stderr]   --> src/main.rs:17:25
[INFO] [stderr]    |
[INFO] [stderr] 17 | fn draw(x: Array2<f64>, y: Array1<u8>) -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stderr]    |                         ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `y`
[INFO] [stderr]   --> src/main.rs:46:13
[INFO] [stderr]    |
[INFO] [stderr] 46 |     let (x, y) = spiral::create_data(100, 3);
[INFO] [stderr]    |             ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stderr] 
[INFO] [stderr] warning: function `draw` is never used
[INFO] [stderr]   --> src/main.rs:17:4
[INFO] [stderr]    |
[INFO] [stderr] 17 | fn draw(x: Array2<f64>, y: Array1<u8>) -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stderr]    |    ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: fields `inputs` and `neurons` are never read
[INFO] [stderr]  --> src/dense_layer.rs:6:9
[INFO] [stderr]   |
[INFO] [stderr] 5 | pub struct Neuron {
[INFO] [stderr]   |            ------ fields in this struct
[INFO] [stderr] 6 |     pub inputs: usize,
[INFO] [stderr]   |         ^^^^^^
[INFO] [stderr] 7 |     pub neurons: usize,
[INFO] [stderr]   |         ^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `Neuron` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: field `neuron` is never read
[INFO] [stderr]   --> src/dense_layer.rs:14:9
[INFO] [stderr]    |
[INFO] [stderr] 11 | pub struct LayerDense {
[INFO] [stderr]    |            ---------- field in this struct
[INFO] [stderr] ...
[INFO] [stderr] 14 |     pub neuron: Neuron,
[INFO] [stderr]    |         ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `LayerDense` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: `nn` (bin "nn" test) generated 7 warnings (run `cargo fix --bin "nn" --tests` to apply 2 suggestions)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.21s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/nn-c45ca20645d8c5e9)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "20fbcc68d9a2768f9103744a04ef789c425c8494820d9a8615660d7798f8e2fb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "20fbcc68d9a2768f9103744a04ef789c425c8494820d9a8615660d7798f8e2fb", kill_on_drop: false }`
[INFO] [stdout] 20fbcc68d9a2768f9103744a04ef789c425c8494820d9a8615660d7798f8e2fb
