[INFO] cloning repository https://github.com/discordance/issues_burn
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/discordance/issues_burn" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdiscordance%2Fissues_burn", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdiscordance%2Fissues_burn'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] fb08697339ea843ee81340712e38720372f46e37
[INFO] checking discordance/issues_burn against master#a932eb36f8adf6c8cdfc450f063943da3112d621 for pr-140209-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdiscordance%2Fissues_burn" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/discordance/issues_burn on toolchain a932eb36f8adf6c8cdfc450f063943da3112d621
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a932eb36f8adf6c8cdfc450f063943da3112d621" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/discordance/issues_burn
[INFO] finished tweaking git repo https://github.com/discordance/issues_burn
[INFO] tweaked toml for git repo https://github.com/discordance/issues_burn written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/discordance/issues_burn 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" "+a932eb36f8adf6c8cdfc450f063943da3112d621" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating git repository `https://github.com/tracel-ai/burn`
[INFO] [stderr]     Updating git repository `https://github.com/tracel-ai/cubecl`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded cubecl-hip-sys v6.3.1001
[INFO] [stderr]   Downloaded candle-core v0.8.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+a932eb36f8adf6c8cdfc450f063943da3112d621" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7866d94edba6c9f9526b01a3382ade355a4f4df239f5fbacebbf0fc9119d6c81
[INFO] running `Command { std: "docker" "start" "-a" "7866d94edba6c9f9526b01a3382ade355a4f4df239f5fbacebbf0fc9119d6c81", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7866d94edba6c9f9526b01a3382ade355a4f4df239f5fbacebbf0fc9119d6c81", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7866d94edba6c9f9526b01a3382ade355a4f4df239f5fbacebbf0fc9119d6c81", kill_on_drop: false }`
[INFO] [stdout] 7866d94edba6c9f9526b01a3382ade355a4f4df239f5fbacebbf0fc9119d6c81
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+a932eb36f8adf6c8cdfc450f063943da3112d621" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fbe325b30fdf86590daeeef3eddc5d959eacb6ca0ab1d48d603127342e1211ed
[INFO] running `Command { std: "docker" "start" "-a" "fbe325b30fdf86590daeeef3eddc5d959eacb6ca0ab1d48d603127342e1211ed", kill_on_drop: false }`
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[INFO] [stderr]     Checking tracing-subscriber v0.3.19
[INFO] [stderr]     Checking compact_str v0.8.1
[INFO] [stderr]     Checking futures v0.3.31
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[INFO] [stderr]     Checking bincode v2.0.0-rc.3
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[INFO] [stderr]    Compiling burn-derive v0.17.0 (https://github.com/tracel-ai/burn?rev=e2fa935#e2fa935a)
[INFO] [stderr]     Checking burn-dataset v0.17.0 (https://github.com/tracel-ai/burn?rev=e2fa935#e2fa935a)
[INFO] [stderr]    Compiling wrapcenum-derive v0.4.1
[INFO] [stderr]     Checking nvml-wrapper-sys v0.8.0
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[INFO] [stderr]     Checking burn-tensor v0.17.0 (https://github.com/tracel-ai/burn?rev=e2fa935#e2fa935a)
[INFO] [stderr]     Checking burn-fusion v0.17.0 (https://github.com/tracel-ai/burn?rev=e2fa935#e2fa935a)
[INFO] [stderr]     Checking burn-autodiff v0.17.0 (https://github.com/tracel-ai/burn?rev=e2fa935#e2fa935a)
[INFO] [stderr]     Checking burn-jit v0.17.0 (https://github.com/tracel-ai/burn?rev=e2fa935#e2fa935a)
[INFO] [stderr]     Checking burn-wgpu v0.17.0 (https://github.com/tracel-ai/burn?rev=e2fa935#e2fa935a)
[INFO] [stderr]     Checking burn-core v0.17.0 (https://github.com/tracel-ai/burn?rev=e2fa935#e2fa935a)
[INFO] [stderr]     Checking burn-train v0.17.0 (https://github.com/tracel-ai/burn?rev=e2fa935#e2fa935a)
[INFO] [stderr]     Checking burn v0.17.0 (https://github.com/tracel-ai/burn?rev=e2fa935#e2fa935a)
[INFO] [stderr]     Checking burn_issues v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `Wgpu`, `tensor::backend::AutodiffBackend`, and `wgpu::WgpuDevice`
[INFO] [stdout]  --> src/main.rs:1:22
[INFO] [stdout]   |
[INFO] [stdout] 1 | use burn::{backend::{wgpu::WgpuDevice, Autodiff, Wgpu}, optim::AdamConfig, tensor::backend::AutodiffBackend};
[INFO] [stdout]   |                      ^^^^^^^^^^^^^^^^            ^^^^                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::path::PathBuf`
[INFO] [stdout]  --> src/example.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::path::PathBuf;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::sync::Arc`
[INFO] [stdout]  --> src/example.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::sync::Arc;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Wgpu` and `wgpu::WgpuDevice`
[INFO] [stdout]    --> src/example.rs:554:26
[INFO] [stdout]     |
[INFO] [stdout] 554 |     use burn::{backend::{wgpu::WgpuDevice, Autodiff, Wgpu}, tensor::Tensor};
[INFO] [stdout]     |                          ^^^^^^^^^^^^^^^^            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Wgpu`, `tensor::backend::AutodiffBackend`, and `wgpu::WgpuDevice`
[INFO] [stdout]  --> src/main.rs:1:22
[INFO] [stdout]   |
[INFO] [stdout] 1 | use burn::{backend::{wgpu::WgpuDevice, Autodiff, Wgpu}, optim::AdamConfig, tensor::backend::AutodiffBackend};
[INFO] [stdout]   |                      ^^^^^^^^^^^^^^^^            ^^^^                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::path::PathBuf`
[INFO] [stdout]  --> src/example.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::path::PathBuf;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::sync::Arc`
[INFO] [stdout]  --> src/example.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::sync::Arc;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `recorder`
[INFO] [stdout]   --> src/example.rs:74:43
[INFO] [stdout]    |
[INFO] [stdout] 74 |     pub fn save_file(&self, path: String, recorder: &CompactRecorder) -> Result<(), String> {
[INFO] [stdout]    |                                           ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_recorder`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `recorder`
[INFO] [stdout]   --> src/example.rs:74:43
[INFO] [stdout]    |
[INFO] [stdout] 74 |     pub fn save_file(&self, path: String, recorder: &CompactRecorder) -> Result<(), String> {
[INFO] [stdout]    |                                           ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_recorder`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `save_file` is never used
[INFO] [stdout]   --> src/example.rs:74:12
[INFO] [stdout]    |
[INFO] [stdout] 32 | impl<B: Backend> SimpleModel<B> {
[INFO] [stdout]    | ------------------------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 74 |     pub fn save_file(&self, path: String, recorder: &CompactRecorder) -> Result<(), String> {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `device` is never read
[INFO] [stdout]    --> src/example.rs:228:9
[INFO] [stdout]     |
[INFO] [stdout] 226 | pub struct SimpleBatcher<B: Backend> {
[INFO] [stdout]     |            ------------- field in this struct
[INFO] [stdout] 227 |     /// Device for tensor operations.
[INFO] [stdout] 228 |     pub device: B::Device,
[INFO] [stdout]     |         ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `SimpleBatcher` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `save_file` is never used
[INFO] [stdout]   --> src/example.rs:74:12
[INFO] [stdout]    |
[INFO] [stdout] 32 | impl<B: Backend> SimpleModel<B> {
[INFO] [stdout]    | ------------------------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 74 |     pub fn save_file(&self, path: String, recorder: &CompactRecorder) -> Result<(), String> {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `device` is never read
[INFO] [stdout]    --> src/example.rs:228:9
[INFO] [stdout]     |
[INFO] [stdout] 226 | pub struct SimpleBatcher<B: Backend> {
[INFO] [stdout]     |            ------------- field in this struct
[INFO] [stdout] 227 |     /// Device for tensor operations.
[INFO] [stdout] 228 |     pub device: B::Device,
[INFO] [stdout]     |         ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `SimpleBatcher` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3m 54s
[INFO] running `Command { std: "docker" "inspect" "fbe325b30fdf86590daeeef3eddc5d959eacb6ca0ab1d48d603127342e1211ed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fbe325b30fdf86590daeeef3eddc5d959eacb6ca0ab1d48d603127342e1211ed", kill_on_drop: false }`
[INFO] [stdout] fbe325b30fdf86590daeeef3eddc5d959eacb6ca0ab1d48d603127342e1211ed