[INFO] cloning repository https://github.com/TehPers/mtg_fine_tuned
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/TehPers/mtg_fine_tuned" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTehPers%2Fmtg_fine_tuned", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTehPers%2Fmtg_fine_tuned'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ee1adc8f7be0c31dd51fe83e4405654a74c592b7
[INFO] building TehPers/mtg_fine_tuned against master#c7f6aa2869acdbf014d094c6e427e554e160b6db for pr-146237-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTehPers%2Fmtg_fine_tuned" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/TehPers/mtg_fine_tuned
[INFO] finished tweaking git repo https://github.com/TehPers/mtg_fine_tuned
[INFO] tweaked toml for git repo https://github.com/TehPers/mtg_fine_tuned written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/TehPers/mtg_fine_tuned on toolchain c7f6aa2869acdbf014d094c6e427e554e160b6db
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/TehPers/mtg_fine_tuned 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" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f451e3905c080c7920e713826a309fefa4e3d5803a9abdfcc47c25673791b7b9
[INFO] running `Command { std: "docker" "start" "-a" "f451e3905c080c7920e713826a309fefa4e3d5803a9abdfcc47c25673791b7b9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f451e3905c080c7920e713826a309fefa4e3d5803a9abdfcc47c25673791b7b9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f451e3905c080c7920e713826a309fefa4e3d5803a9abdfcc47c25673791b7b9", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "start" "-a" "561e5cbffe4bddda307be937c030d7688fee7fd00e2d8e50014e12f53677b23c", kill_on_drop: false }`
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[INFO] [stdout] warning: unused import: `rayon::array`
[INFO] [stdout]  --> src/shared/neural_net.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use rayon::array;
[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: `rayon::array`
[INFO] [stdout]  --> src/shared/neural_net.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use rayon::array;
[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: `rayon::array`
[INFO] [stdout]  --> src/shared/neural_net.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use rayon::array;
[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: `rayon::array`
[INFO] [stdout]  --> src/shared/neural_net.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use rayon::array;
[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 variable: `input`
[INFO] [stdout]   --> src/shared/neural_net.rs:15:35
[INFO] [stdout]    |
[INFO] [stdout] 15 |     pub fn forward(&mut self, mut input: Array1<Val>) {
[INFO] [stdout]    |                                   ^^^^^ help: if this is intentional, prefix it with an underscore: `_input`
[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/shared/neural_net.rs:15:31
[INFO] [stdout]    |
[INFO] [stdout] 15 |     pub fn forward(&mut self, mut input: Array1<Val>) {
[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: type alias `Val` is never used
[INFO] [stdout]  --> src/shared/neural_net.rs:4:6
[INFO] [stdout]   |
[INFO] [stdout] 4 | type Val = f64;
[INFO] [stdout]   |      ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `NeuralNetwork` is never constructed
[INFO] [stdout]  --> src/shared/neural_net.rs:7:12
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub struct NeuralNetwork<A> {
[INFO] [stdout]   |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `forward` is never used
[INFO] [stdout]   --> src/shared/neural_net.rs:15:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | / impl<A> NeuralNetwork<A>
[INFO] [stdout] 12 | | where
[INFO] [stdout] 13 | |     A: Fn(Val) -> Val,
[INFO] [stdout]    | |______________________- method in this implementation
[INFO] [stdout] 14 |   {
[INFO] [stdout] 15 |       pub fn forward(&mut self, mut input: Array1<Val>) {
[INFO] [stdout]    |              ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Layer` is never constructed
[INFO] [stdout]   --> src/shared/neural_net.rs:20:12
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub struct Layer {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new_rand` is never used
[INFO] [stdout]   --> src/shared/neural_net.rs:26:12
[INFO] [stdout]    |
[INFO] [stdout] 25 | impl Layer {
[INFO] [stdout]    | ---------- associated function in this implementation
[INFO] [stdout] 26 |     pub fn new_rand() -> Self {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `sigmoid` is never used
[INFO] [stdout]   --> src/shared/neural_net.rs:31:8
[INFO] [stdout]    |
[INFO] [stdout] 31 | pub fn sigmoid(x: Array1<Val>) -> Array1<Val> {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `input`
[INFO] [stdout]   --> src/shared/neural_net.rs:15:35
[INFO] [stdout]    |
[INFO] [stdout] 15 |     pub fn forward(&mut self, mut input: Array1<Val>) {
[INFO] [stdout]    |                                   ^^^^^ help: if this is intentional, prefix it with an underscore: `_input`
[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/shared/neural_net.rs:15:31
[INFO] [stdout]    |
[INFO] [stdout] 15 |     pub fn forward(&mut self, mut input: Array1<Val>) {
[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: type alias `Val` is never used
[INFO] [stdout]  --> src/shared/neural_net.rs:4:6
[INFO] [stdout]   |
[INFO] [stdout] 4 | type Val = f64;
[INFO] [stdout]   |      ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `NeuralNetwork` is never constructed
[INFO] [stdout]  --> src/shared/neural_net.rs:7:12
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub struct NeuralNetwork<A> {
[INFO] [stdout]   |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `forward` is never used
[INFO] [stdout]   --> src/shared/neural_net.rs:15:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | / impl<A> NeuralNetwork<A>
[INFO] [stdout] 12 | | where
[INFO] [stdout] 13 | |     A: Fn(Val) -> Val,
[INFO] [stdout]    | |______________________- method in this implementation
[INFO] [stdout] 14 |   {
[INFO] [stdout] 15 |       pub fn forward(&mut self, mut input: Array1<Val>) {
[INFO] [stdout]    |              ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Layer` is never constructed
[INFO] [stdout]   --> src/shared/neural_net.rs:20:12
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub struct Layer {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new_rand` is never used
[INFO] [stdout]   --> src/shared/neural_net.rs:26:12
[INFO] [stdout]    |
[INFO] [stdout] 25 | impl Layer {
[INFO] [stdout]    | ---------- associated function in this implementation
[INFO] [stdout] 26 |     pub fn new_rand() -> Self {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `sigmoid` is never used
[INFO] [stdout]   --> src/shared/neural_net.rs:31:8
[INFO] [stdout]    |
[INFO] [stdout] 31 | pub fn sigmoid(x: Array1<Val>) -> Array1<Val> {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `input`
[INFO] [stdout]   --> src/shared/neural_net.rs:15:35
[INFO] [stdout]    |
[INFO] [stdout] 15 |     pub fn forward(&mut self, mut input: Array1<Val>) {
[INFO] [stdout]    |                                   ^^^^^ help: if this is intentional, prefix it with an underscore: `_input`
[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/shared/neural_net.rs:15:31
[INFO] [stdout]    |
[INFO] [stdout] 15 |     pub fn forward(&mut self, mut input: Array1<Val>) {
[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: unused variable: `input`
[INFO] [stdout]   --> src/shared/neural_net.rs:15:35
[INFO] [stdout]    |
[INFO] [stdout] 15 |     pub fn forward(&mut self, mut input: Array1<Val>) {
[INFO] [stdout]    |                                   ^^^^^ help: if this is intentional, prefix it with an underscore: `_input`
[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/shared/neural_net.rs:15:31
[INFO] [stdout]    |
[INFO] [stdout] 15 |     pub fn forward(&mut self, mut input: Array1<Val>) {
[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: unused variable: `model`
[INFO] [stdout]   --> src/generate_image.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 |     let model = lin_reg.fit(&dataset)?;
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_model`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `depth`
[INFO] [stdout]   --> src/generate_image.rs:21:5
[INFO] [stdout]    |
[INFO] [stdout] 21 |     depth: usize,
[INFO] [stdout]    |     ^^^^^ help: if this is intentional, prefix it with an underscore: `_depth`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `size`
[INFO] [stdout]   --> src/generate_image.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 22 |     size: usize,
[INFO] [stdout]    |     ^^^^ help: if this is intentional, prefix it with an underscore: `_size`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `activation`
[INFO] [stdout]   --> src/generate_image.rs:23:5
[INFO] [stdout]    |
[INFO] [stdout] 23 |     activation: A,
[INFO] [stdout]    |     ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_activation`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `color_mode`
[INFO] [stdout]   --> src/generate_image.rs:24:5
[INFO] [stdout]    |
[INFO] [stdout] 24 |     color_mode: &str,
[INFO] [stdout]    |     ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_color_mode`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `init_image` is never used
[INFO] [stdout]   --> src/generate_image.rs:16:4
[INFO] [stdout]    |
[INFO] [stdout] 16 | fn init_image(rows: usize, cols: usize) -> Array3<f64> {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `prep_nnet_arch` is never used
[INFO] [stdout]   --> src/generate_image.rs:20:4
[INFO] [stdout]    |
[INFO] [stdout] 20 | fn prep_nnet_arch<A>(
[INFO] [stdout]    |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Card` is never constructed
[INFO] [stdout]  --> src/shared/models.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct Card {
[INFO] [stdout]   |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `CardFace` is never constructed
[INFO] [stdout]   --> src/shared/models.rs:37:12
[INFO] [stdout]    |
[INFO] [stdout] 37 | pub struct CardFace {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `Val` is never used
[INFO] [stdout]  --> src/shared/neural_net.rs:4:6
[INFO] [stdout]   |
[INFO] [stdout] 4 | type Val = f64;
[INFO] [stdout]   |      ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `NeuralNetwork` is never constructed
[INFO] [stdout]  --> src/shared/neural_net.rs:7:12
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub struct NeuralNetwork<A> {
[INFO] [stdout]   |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `forward` is never used
[INFO] [stdout]   --> src/shared/neural_net.rs:15:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | / impl<A> NeuralNetwork<A>
[INFO] [stdout] 12 | | where
[INFO] [stdout] 13 | |     A: Fn(Val) -> Val,
[INFO] [stdout]    | |______________________- method in this implementation
[INFO] [stdout] 14 |   {
[INFO] [stdout] 15 |       pub fn forward(&mut self, mut input: Array1<Val>) {
[INFO] [stdout]    |              ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Layer` is never constructed
[INFO] [stdout]   --> src/shared/neural_net.rs:20:12
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub struct Layer {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new_rand` is never used
[INFO] [stdout]   --> src/shared/neural_net.rs:26:12
[INFO] [stdout]    |
[INFO] [stdout] 25 | impl Layer {
[INFO] [stdout]    | ---------- associated function in this implementation
[INFO] [stdout] 26 |     pub fn new_rand() -> Self {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `sigmoid` is never used
[INFO] [stdout]   --> src/shared/neural_net.rs:31:8
[INFO] [stdout]    |
[INFO] [stdout] 31 | pub fn sigmoid(x: Array1<Val>) -> Array1<Val> {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `Val` is never used
[INFO] [stdout]  --> src/shared/neural_net.rs:4:6
[INFO] [stdout]   |
[INFO] [stdout] 4 | type Val = f64;
[INFO] [stdout]   |      ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `NeuralNetwork` is never constructed
[INFO] [stdout]  --> src/shared/neural_net.rs:7:12
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub struct NeuralNetwork<A> {
[INFO] [stdout]   |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `forward` is never used
[INFO] [stdout]   --> src/shared/neural_net.rs:15:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | / impl<A> NeuralNetwork<A>
[INFO] [stdout] 12 | | where
[INFO] [stdout] 13 | |     A: Fn(Val) -> Val,
[INFO] [stdout]    | |______________________- method in this implementation
[INFO] [stdout] 14 |   {
[INFO] [stdout] 15 |       pub fn forward(&mut self, mut input: Array1<Val>) {
[INFO] [stdout]    |              ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Layer` is never constructed
[INFO] [stdout]   --> src/shared/neural_net.rs:20:12
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub struct Layer {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new_rand` is never used
[INFO] [stdout]   --> src/shared/neural_net.rs:26:12
[INFO] [stdout]    |
[INFO] [stdout] 25 | impl Layer {
[INFO] [stdout]    | ---------- associated function in this implementation
[INFO] [stdout] 26 |     pub fn new_rand() -> Self {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `sigmoid` is never used
[INFO] [stdout]   --> src/shared/neural_net.rs:31:8
[INFO] [stdout]    |
[INFO] [stdout] 31 | pub fn sigmoid(x: Array1<Val>) -> Array1<Val> {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1m 18s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: argmin v0.4.7
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 3`
[INFO] running `Command { std: "docker" "inspect" "561e5cbffe4bddda307be937c030d7688fee7fd00e2d8e50014e12f53677b23c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "561e5cbffe4bddda307be937c030d7688fee7fd00e2d8e50014e12f53677b23c", kill_on_drop: false }`
[INFO] [stdout] 561e5cbffe4bddda307be937c030d7688fee7fd00e2d8e50014e12f53677b23c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0539844fa931430bbeccb0d9b1fad3fe0a8195527ad086e509efa0cb087275da
[INFO] running `Command { std: "docker" "start" "-a" "0539844fa931430bbeccb0d9b1fad3fe0a8195527ad086e509efa0cb087275da", kill_on_drop: false }`
[INFO] [stderr]    Compiling mtg_fine_tuned v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `rayon::array`
[INFO] [stdout]  --> src/shared/neural_net.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use rayon::array;
[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: `rayon::array`
[INFO] [stdout]  --> src/shared/neural_net.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use rayon::array;
[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: `rayon::array`
[INFO] [stdout]  --> src/shared/neural_net.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use rayon::array;
[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: `rayon::array`
[INFO] [stdout]  --> src/shared/neural_net.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use rayon::array;
[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 variable: `input`
[INFO] [stdout]   --> src/shared/neural_net.rs:15:35
[INFO] [stdout]    |
[INFO] [stdout] 15 |     pub fn forward(&mut self, mut input: Array1<Val>) {
[INFO] [stdout]    |                                   ^^^^^ help: if this is intentional, prefix it with an underscore: `_input`
[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/shared/neural_net.rs:15:31
[INFO] [stdout]    |
[INFO] [stdout] 15 |     pub fn forward(&mut self, mut input: Array1<Val>) {
[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: type alias `Val` is never used
[INFO] [stdout]  --> src/shared/neural_net.rs:4:6
[INFO] [stdout]   |
[INFO] [stdout] 4 | type Val = f64;
[INFO] [stdout]   |      ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `NeuralNetwork` is never constructed
[INFO] [stdout]  --> src/shared/neural_net.rs:7:12
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub struct NeuralNetwork<A> {
[INFO] [stdout]   |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `forward` is never used
[INFO] [stdout]   --> src/shared/neural_net.rs:15:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | / impl<A> NeuralNetwork<A>
[INFO] [stdout] 12 | | where
[INFO] [stdout] 13 | |     A: Fn(Val) -> Val,
[INFO] [stdout]    | |______________________- method in this implementation
[INFO] [stdout] 14 |   {
[INFO] [stdout] 15 |       pub fn forward(&mut self, mut input: Array1<Val>) {
[INFO] [stdout]    |              ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Layer` is never constructed
[INFO] [stdout]   --> src/shared/neural_net.rs:20:12
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub struct Layer {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new_rand` is never used
[INFO] [stdout]   --> src/shared/neural_net.rs:26:12
[INFO] [stdout]    |
[INFO] [stdout] 25 | impl Layer {
[INFO] [stdout]    | ---------- associated function in this implementation
[INFO] [stdout] 26 |     pub fn new_rand() -> Self {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `sigmoid` is never used
[INFO] [stdout]   --> src/shared/neural_net.rs:31:8
[INFO] [stdout]    |
[INFO] [stdout] 31 | pub fn sigmoid(x: Array1<Val>) -> Array1<Val> {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `input`
[INFO] [stdout]   --> src/shared/neural_net.rs:15:35
[INFO] [stdout]    |
[INFO] [stdout] 15 |     pub fn forward(&mut self, mut input: Array1<Val>) {
[INFO] [stdout]    |                                   ^^^^^ help: if this is intentional, prefix it with an underscore: `_input`
[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/shared/neural_net.rs:15:31
[INFO] [stdout]    |
[INFO] [stdout] 15 |     pub fn forward(&mut self, mut input: Array1<Val>) {
[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: unused variable: `model`
[INFO] [stdout]   --> src/generate_image.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 |     let model = lin_reg.fit(&dataset)?;
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_model`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `depth`
[INFO] [stdout]   --> src/generate_image.rs:21:5
[INFO] [stdout]    |
[INFO] [stdout] 21 |     depth: usize,
[INFO] [stdout]    |     ^^^^^ help: if this is intentional, prefix it with an underscore: `_depth`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `size`
[INFO] [stdout]   --> src/generate_image.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 22 |     size: usize,
[INFO] [stdout]    |     ^^^^ help: if this is intentional, prefix it with an underscore: `_size`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `activation`
[INFO] [stdout]   --> src/generate_image.rs:23:5
[INFO] [stdout]    |
[INFO] [stdout] 23 |     activation: A,
[INFO] [stdout]    |     ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_activation`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `color_mode`
[INFO] [stdout]   --> src/generate_image.rs:24:5
[INFO] [stdout]    |
[INFO] [stdout] 24 |     color_mode: &str,
[INFO] [stdout]    |     ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_color_mode`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `init_image` is never used
[INFO] [stdout]   --> src/generate_image.rs:16:4
[INFO] [stdout]    |
[INFO] [stdout] 16 | fn init_image(rows: usize, cols: usize) -> Array3<f64> {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `prep_nnet_arch` is never used
[INFO] [stdout]   --> src/generate_image.rs:20:4
[INFO] [stdout]    |
[INFO] [stdout] 20 | fn prep_nnet_arch<A>(
[INFO] [stdout]    |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Card` is never constructed
[INFO] [stdout]  --> src/shared/models.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct Card {
[INFO] [stdout]   |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `CardFace` is never constructed
[INFO] [stdout]   --> src/shared/models.rs:37:12
[INFO] [stdout]    |
[INFO] [stdout] 37 | pub struct CardFace {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `Val` is never used
[INFO] [stdout]  --> src/shared/neural_net.rs:4:6
[INFO] [stdout]   |
[INFO] [stdout] 4 | type Val = f64;
[INFO] [stdout]   |      ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `NeuralNetwork` is never constructed
[INFO] [stdout]  --> src/shared/neural_net.rs:7:12
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub struct NeuralNetwork<A> {
[INFO] [stdout]   |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `forward` is never used
[INFO] [stdout]   --> src/shared/neural_net.rs:15:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | / impl<A> NeuralNetwork<A>
[INFO] [stdout] 12 | | where
[INFO] [stdout] 13 | |     A: Fn(Val) -> Val,
[INFO] [stdout]    | |______________________- method in this implementation
[INFO] [stdout] 14 |   {
[INFO] [stdout] 15 |       pub fn forward(&mut self, mut input: Array1<Val>) {
[INFO] [stdout]    |              ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Layer` is never constructed
[INFO] [stdout]   --> src/shared/neural_net.rs:20:12
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub struct Layer {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new_rand` is never used
[INFO] [stdout]   --> src/shared/neural_net.rs:26:12
[INFO] [stdout]    |
[INFO] [stdout] 25 | impl Layer {
[INFO] [stdout]    | ---------- associated function in this implementation
[INFO] [stdout] 26 |     pub fn new_rand() -> Self {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `sigmoid` is never used
[INFO] [stdout]   --> src/shared/neural_net.rs:31:8
[INFO] [stdout]    |
[INFO] [stdout] 31 | pub fn sigmoid(x: Array1<Val>) -> Array1<Val> {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `input`
[INFO] [stdout]   --> src/shared/neural_net.rs:15:35
[INFO] [stdout]    |
[INFO] [stdout] 15 |     pub fn forward(&mut self, mut input: Array1<Val>) {
[INFO] [stdout]    |                                   ^^^^^ help: if this is intentional, prefix it with an underscore: `_input`
[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/shared/neural_net.rs:15:31
[INFO] [stdout]    |
[INFO] [stdout] 15 |     pub fn forward(&mut self, mut input: Array1<Val>) {
[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: unused variable: `input`
[INFO] [stdout]   --> src/shared/neural_net.rs:15:35
[INFO] [stdout]    |
[INFO] [stdout] 15 |     pub fn forward(&mut self, mut input: Array1<Val>) {
[INFO] [stdout]    |                                   ^^^^^ help: if this is intentional, prefix it with an underscore: `_input`
[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/shared/neural_net.rs:15:31
[INFO] [stdout]    |
[INFO] [stdout] 15 |     pub fn forward(&mut self, mut input: Array1<Val>) {
[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: type alias `Val` is never used
[INFO] [stdout]  --> src/shared/neural_net.rs:4:6
[INFO] [stdout]   |
[INFO] [stdout] 4 | type Val = f64;
[INFO] [stdout]   |      ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `NeuralNetwork` is never constructed
[INFO] [stdout]  --> src/shared/neural_net.rs:7:12
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub struct NeuralNetwork<A> {
[INFO] [stdout]   |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `forward` is never used
[INFO] [stdout]   --> src/shared/neural_net.rs:15:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | / impl<A> NeuralNetwork<A>
[INFO] [stdout] 12 | | where
[INFO] [stdout] 13 | |     A: Fn(Val) -> Val,
[INFO] [stdout]    | |______________________- method in this implementation
[INFO] [stdout] 14 |   {
[INFO] [stdout] 15 |       pub fn forward(&mut self, mut input: Array1<Val>) {
[INFO] [stdout]    |              ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Layer` is never constructed
[INFO] [stdout]   --> src/shared/neural_net.rs:20:12
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub struct Layer {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new_rand` is never used
[INFO] [stdout]   --> src/shared/neural_net.rs:26:12
[INFO] [stdout]    |
[INFO] [stdout] 25 | impl Layer {
[INFO] [stdout]    | ---------- associated function in this implementation
[INFO] [stdout] 26 |     pub fn new_rand() -> Self {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `sigmoid` is never used
[INFO] [stdout]   --> src/shared/neural_net.rs:31:8
[INFO] [stdout]    |
[INFO] [stdout] 31 | pub fn sigmoid(x: Array1<Val>) -> Array1<Val> {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `Val` is never used
[INFO] [stdout]  --> src/shared/neural_net.rs:4:6
[INFO] [stdout]   |
[INFO] [stdout] 4 | type Val = f64;
[INFO] [stdout]   |      ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `NeuralNetwork` is never constructed
[INFO] [stdout]  --> src/shared/neural_net.rs:7:12
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub struct NeuralNetwork<A> {
[INFO] [stdout]   |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `forward` is never used
[INFO] [stdout]   --> src/shared/neural_net.rs:15:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | / impl<A> NeuralNetwork<A>
[INFO] [stdout] 12 | | where
[INFO] [stdout] 13 | |     A: Fn(Val) -> Val,
[INFO] [stdout]    | |______________________- method in this implementation
[INFO] [stdout] 14 |   {
[INFO] [stdout] 15 |       pub fn forward(&mut self, mut input: Array1<Val>) {
[INFO] [stdout]    |              ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Layer` is never constructed
[INFO] [stdout]   --> src/shared/neural_net.rs:20:12
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub struct Layer {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new_rand` is never used
[INFO] [stdout]   --> src/shared/neural_net.rs:26:12
[INFO] [stdout]    |
[INFO] [stdout] 25 | impl Layer {
[INFO] [stdout]    | ---------- associated function in this implementation
[INFO] [stdout] 26 |     pub fn new_rand() -> Self {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `sigmoid` is never used
[INFO] [stdout]   --> src/shared/neural_net.rs:31:8
[INFO] [stdout]    |
[INFO] [stdout] 31 | pub fn sigmoid(x: Array1<Val>) -> Array1<Val> {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.39s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: argmin v0.4.7
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 3`
[INFO] running `Command { std: "docker" "inspect" "0539844fa931430bbeccb0d9b1fad3fe0a8195527ad086e509efa0cb087275da", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0539844fa931430bbeccb0d9b1fad3fe0a8195527ad086e509efa0cb087275da", kill_on_drop: false }`
[INFO] [stdout] 0539844fa931430bbeccb0d9b1fad3fe0a8195527ad086e509efa0cb087275da
