[INFO] cloning repository https://github.com/frey-mz/alphazero-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/frey-mz/alphazero-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffrey-mz%2Falphazero-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffrey-mz%2Falphazero-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3445d2e0f843df8c7e2c9125e1f4876cba90e044
[INFO] checking frey-mz/alphazero-rust against try#4949cf2f817beadb9a248d423b6d55d6d2398ffe for pr-142681
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffrey-mz%2Falphazero-rust" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/frey-mz/alphazero-rust
[INFO] finished tweaking git repo https://github.com/frey-mz/alphazero-rust
[INFO] tweaked toml for git repo https://github.com/frey-mz/alphazero-rust written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/frey-mz/alphazero-rust on toolchain 4949cf2f817beadb9a248d423b6d55d6d2398ffe
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4949cf2f817beadb9a248d423b6d55d6d2398ffe" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/frey-mz/alphazero-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" "+4949cf2f817beadb9a248d423b6d55d6d2398ffe" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "start" "-a" "1946f97eed426c1b8dde2329fc77daf3a10d7639d9252fcbc6b82aafa6dc4627", kill_on_drop: false }`
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[INFO] [stdout] warning: unused import: `learn`
[INFO] [stdout]  --> examples/connect_four.rs:2:29
[INFO] [stdout]   |
[INFO] [stdout] 2 | use alphazero_rust::coach::{learn, CoachOptions};
[INFO] [stdout]   |                             ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self`
[INFO] [stdout]  --> examples/connect_four.rs:6:27
[INFO] [stdout]   |
[INFO] [stdout] 6 | use burn::backend::wgpu::{self, JitBackend, WgpuDevice, WgpuRuntime};
[INFO] [stdout]   |                           ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Wgpu`
[INFO] [stdout]  --> examples/connect_four.rs:7:31
[INFO] [stdout]   |
[INFO] [stdout] 7 | use burn::backend::{Autodiff, Wgpu};
[INFO] [stdout]   |                               ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `burn::module::AutodiffModule`
[INFO] [stdout]   --> examples/connect_four.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | use burn::module::AutodiffModule;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `AdamConfig`
[INFO] [stdout]   --> examples/connect_four.rs:13:19
[INFO] [stdout]    |
[INFO] [stdout] 13 | use burn::optim::{AdamConfig, GradientsParams, Optimizer, SgdConfig};
[INFO] [stdout]    |                   ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `burn::record::CompactRecorder`
[INFO] [stdout]   --> examples/connect_four.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | use burn::record::CompactRecorder;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `softmax`
[INFO] [stdout]   --> examples/connect_four.rs:16:45
[INFO] [stdout]    |
[INFO] [stdout] 16 | use burn::tensor::activation::{log_softmax, softmax};
[INFO] [stdout]    |                                             ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `burn::tensor::cast::ToElement`
[INFO] [stdout]   --> examples/connect_four.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 18 | use burn::tensor::cast::ToElement;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `AccuracyMetric` and `LossMetric`
[INFO] [stdout]   --> examples/connect_four.rs:20:27
[INFO] [stdout]    |
[INFO] [stdout] 20 | use burn::train::metric::{AccuracyMetric, LossMetric};
[INFO] [stdout]    |                           ^^^^^^^^^^^^^^  ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `burn::train::ClassificationOutput`
[INFO] [stdout]   --> examples/connect_four.rs:21:5
[INFO] [stdout]    |
[INFO] [stdout] 21 | use burn::train::ClassificationOutput;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `burn::train::TrainOutput`
[INFO] [stdout]   --> examples/connect_four.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 22 | use burn::train::TrainOutput;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `LearnerBuilder`
[INFO] [stdout]   --> examples/connect_four.rs:24:19
[INFO] [stdout]    |
[INFO] [stdout] 24 | use burn::train::{LearnerBuilder, TrainStep};
[INFO] [stdout]    |                   ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `CrossEntropyLossConfig` and `CrossEntropyLoss`
[INFO] [stdout]   --> examples/connect_four.rs:25:16
[INFO] [stdout]    |
[INFO] [stdout] 25 | use nn::loss::{CrossEntropyLoss, CrossEntropyLossConfig, MseLoss};
[INFO] [stdout]    |                ^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `rand::thread_rng`
[INFO] [stdout]   --> examples/connect_four.rs:28:5
[INFO] [stdout]    |
[INFO] [stdout] 28 | use rand::thread_rng;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `burn::train::ValidStep`
[INFO] [stdout]   --> examples/connect_four.rs:23:5
[INFO] [stdout]    |
[INFO] [stdout] 23 | use burn::train::ValidStep;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `rand::seq::SliceRandom`
[INFO] [stdout]   --> examples/connect_four.rs:27:5
[INFO] [stdout]    |
[INFO] [stdout] 27 | use rand::seq::SliceRandom;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `TrainStep`
[INFO] [stdout]   --> examples/connect_four.rs:24:35
[INFO] [stdout]    |
[INFO] [stdout] 24 | use burn::train::{LearnerBuilder, TrainStep};
[INFO] [stdout]    |                                   ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `perspective`
[INFO] [stdout]    --> examples/connect_four.rs:115:23
[INFO] [stdout]     |
[INFO] [stdout] 115 |     fn predict(&self, perspective: &Self::State, device: &<Self::BurnBackend as Backend>::Device)->(Tensor<Self::BurnBackend, 1, Float>, ...
[INFO] [stdout]     |                       ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_perspective`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `training_data`
[INFO] [stdout]    --> examples/connect_four.rs:120:21
[INFO] [stdout]     |
[INFO] [stdout] 120 |     fn train(&self, training_data: Vec<&(Self::State, Tensor<Self::BurnBackend, 1>, f64)>, device: &<Self::BurnBackend as Backend>::Devic...
[INFO] [stdout]     |                     ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_training_data`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `device`
[INFO] [stdout]    --> examples/connect_four.rs:120:92
[INFO] [stdout]     |
[INFO] [stdout] 120 | ...elf::BurnBackend, 1>, f64)>, device: &<Self::BurnBackend as Backend>::Device)->Self {
[INFO] [stdout]     |                                 ^^^^^^ help: if this is intentional, prefix it with an underscore: `_device`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `DataSet` is never constructed
[INFO] [stdout]    --> examples/connect_four.rs:508:8
[INFO] [stdout]     |
[INFO] [stdout] 508 | struct DataSet<State, const ACTION_SIZE: usize> {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Connect4Net` is never constructed
[INFO] [stdout]    --> examples/connect_four.rs:526:8
[INFO] [stdout]     |
[INFO] [stdout] 526 | struct Connect4Net<B: Backend> {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new` and `forward` are never used
[INFO] [stdout]    --> examples/connect_four.rs:535:8
[INFO] [stdout]     |
[INFO] [stdout] 534 | impl<B: Backend> Connect4Net<B> {
[INFO] [stdout]     | ------------------------------- associated items in this implementation
[INFO] [stdout] 535 |     fn new(device: &Device<B>) -> Self {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 544 |     fn forward(&self, input: Tensor<B, 3>) -> (Tensor<B, 1>, Tensor<B, 1>) {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2m 42s
[INFO] running `Command { std: "docker" "inspect" "0aa32c7b9ab1a9338ee092018eec20748ec6d09de0543593da78db709cd729fe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0aa32c7b9ab1a9338ee092018eec20748ec6d09de0543593da78db709cd729fe", kill_on_drop: false }`
[INFO] [stdout] 0aa32c7b9ab1a9338ee092018eec20748ec6d09de0543593da78db709cd729fe