[INFO] cloning repository https://github.com/TimTom2016/alphabet_recognizer
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/TimTom2016/alphabet_recognizer" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTimTom2016%2Falphabet_recognizer", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTimTom2016%2Falphabet_recognizer'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e3b7d30386a9dcee15adf0f499410981987e44ae
[INFO] testing TimTom2016/alphabet_recognizer against 1.99.0-beta.8 for beta-1.100-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTimTom2016%2Falphabet_recognizer" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/TimTom2016/alphabet_recognizer
[INFO] finished tweaking git repo https://github.com/TimTom2016/alphabet_recognizer
[INFO] tweaked toml for git repo https://github.com/TimTom2016/alphabet_recognizer written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/TimTom2016/alphabet_recognizer on toolchain 1.99.0-beta.8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.99.0-beta.8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/TimTom2016/alphabet_recognizer 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" "+1.99.0-beta.8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2024 which implies `resolver = "3"`
[INFO] [stderr]   |
[INFO] [stderr]   = note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
[INFO] [stderr]   = note: to use the edition 2024 resolver, specify `workspace.resolver = "3"` in the workspace root's manifest
[INFO] [stderr]   = note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions
[INFO] [stderr] warning: web/Cargo.toml: `default-features` is ignored for burn, since `default-features` was not specified for `workspace.dependencies.burn`; overriding workspace `default-features` to false requires Rust 1.99+ and the 2024 edition
[INFO] [stderr] warning: `web` (manifest) generated 1 warning
[INFO] [stderr]     Updating crates.io index
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:3111399a4047eeb3a02b7a90e478d715f38a8c6669b5c4b49d30a17385265909" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] bf037d97c66dab16cb3b1f36781d7588e290730a5be03edb1274ba1eb8b5a5f7
[INFO] running `Command { std: "docker" "start" "bf037d97c66dab16cb3b1f36781d7588e290730a5be03edb1274ba1eb8b5a5f7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bf037d97c66dab16cb3b1f36781d7588e290730a5be03edb1274ba1eb8b5a5f7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "bf037d97c66dab16cb3b1f36781d7588e290730a5be03edb1274ba1eb8b5a5f7" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bf037d97c66dab16cb3b1f36781d7588e290730a5be03edb1274ba1eb8b5a5f7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "bf037d97c66dab16cb3b1f36781d7588e290730a5be03edb1274ba1eb8b5a5f7" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2024 which implies `resolver = "3"`
[INFO] [stderr]   |
[INFO] [stderr]   = note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
[INFO] [stderr]   = note: to use the edition 2024 resolver, specify `workspace.resolver = "3"` in the workspace root's manifest
[INFO] [stderr]   = note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions
[INFO] [stderr] warning: web/Cargo.toml: `default-features` is ignored for burn, since `default-features` was not specified for `workspace.dependencies.burn`; overriding workspace `default-features` to false requires Rust 1.99+ and the 2024 edition
[INFO] [stderr] warning: `web` (manifest) generated 1 warning
[INFO] [stderr]    Compiling libc v0.2.171
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]    Compiling crossbeam-utils v0.8.21
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[INFO] [stderr]    Compiling rustversion v1.0.20
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[INFO] [stderr]    Compiling tokio v1.44.2
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[INFO] [stderr]    Compiling icu_collections v1.5.0
[INFO] [stderr]    Compiling icu_locid v1.5.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.69
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[INFO] [stderr]    Compiling serde_json v1.0.140
[INFO] [stderr]    Compiling image-webp v0.2.1
[INFO] [stderr]    Compiling dirs-sys v0.4.1
[INFO] [stderr]    Compiling tiff v0.9.1
[INFO] [stderr]    Compiling time v0.3.41
[INFO] [stderr]    Compiling hyper-util v0.1.11
[INFO] [stderr]    Compiling toml_edit v0.22.24
[INFO] [stderr]    Compiling png v0.17.16
[INFO] [stderr]    Compiling zune-jpeg v0.4.14
[INFO] [stderr]    Compiling exr v1.73.0
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[INFO] [stderr]    Compiling gif v0.13.1
[INFO] [stderr]    Compiling ravif v0.11.11
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[INFO] [stderr]    Compiling rusqlite v0.32.1
[INFO] [stderr]    Compiling burn-common v0.16.1
[INFO] [stderr]    Compiling burn-tensor v0.16.1
[INFO] [stderr]    Compiling uuid v1.16.0
[INFO] [stderr]    Compiling tempfile v3.19.1
[INFO] [stderr]    Compiling strum v0.26.3
[INFO] [stderr]    Compiling rstest_macros v0.23.0
[INFO] [stderr]    Compiling ignore v0.4.23
[INFO] [stderr]    Compiling gix-fs v0.12.1
[INFO] [stderr]    Compiling qoi v0.4.1
[INFO] [stderr]    Compiling dashmap v6.1.0
[INFO] [stderr]    Compiling num-complex v0.4.6
[INFO] [stderr]    Compiling concurrent-queue v2.5.0
[INFO] [stderr]    Compiling csv-core v0.1.12
[INFO] [stderr]    Compiling burn-ndarray v0.16.1
[INFO] [stderr]    Compiling overload v0.1.1
[INFO] [stderr]    Compiling rustix v0.38.44
[INFO] [stderr]    Compiling nu-ansi-term v0.46.0
[INFO] [stderr]    Compiling csv v1.3.1
[INFO] [stderr]    Compiling event-listener v5.4.0
[INFO] [stderr]    Compiling ndarray v0.16.1
[INFO] [stderr]    Compiling globwalk v0.9.1
[INFO] [stderr]    Compiling gix-tempfile v15.0.0
[INFO] [stderr]    Compiling image v0.25.6
[INFO] [stderr]    Compiling r2d2_sqlite v0.25.0
[INFO] [stderr]    Compiling serde_rusqlite v0.36.0
[INFO] [stderr]    Compiling proc-macro-crate v3.3.0
[INFO] [stderr]    Compiling rmp-serde v1.3.0
[INFO] [stderr]    Compiling dirs v5.0.1
[INFO] [stderr]    Compiling sanitize-filename v0.6.0
[INFO] [stderr]    Compiling futures-executor v0.3.31
[INFO] [stderr]    Compiling signal-hook-mio v0.2.4
[INFO] [stderr]    Compiling sharded-slab v0.1.7
[INFO] [stderr]    Compiling castaway v0.2.3
[INFO] [stderr]    Compiling tracing-log v0.2.0
[INFO] [stderr]    Compiling thread_local v1.1.8
[INFO] [stderr]    Compiling libloading v0.8.6
[INFO] [stderr]    Compiling glob v0.3.2
[INFO] [stderr]    Compiling atomic_float v1.1.0
[INFO] [stderr]    Compiling unty v0.0.4
[INFO] [stderr]    Compiling relative-path v1.9.3
[INFO] [stderr]    Compiling tracing-subscriber v0.3.19
[INFO] [stderr]    Compiling bincode v2.0.1
[INFO] [stderr]    Compiling instability v0.3.7
[INFO] [stderr]    Compiling nvml-wrapper-sys v0.8.0
[INFO] [stderr]    Compiling burn-autodiff v0.16.1
[INFO] [stderr]    Compiling futures v0.3.31
[INFO] [stderr]    Compiling compact_str v0.8.1
[INFO] [stderr]    Compiling crossterm v0.28.1
[INFO] [stderr]    Compiling burn-dataset v0.16.1
[INFO] [stderr]    Compiling event-listener-strategy v0.5.4
[INFO] [stderr]    Compiling wrapcenum-derive v0.4.1
[INFO] [stderr]    Compiling lru v0.12.5
[INFO] [stderr]    Compiling burn-derive v0.16.1
[INFO] [stderr]    Compiling data-encoding v2.8.0
[INFO] [stderr]    Compiling futures-timer v3.0.3
[INFO] [stderr]    Compiling bytesize v1.3.3
[INFO] [stderr]    Compiling ratatui v0.29.0
[INFO] [stderr]    Compiling rstest v0.23.0
[INFO] [stderr]    Compiling systemstat v0.2.4
[INFO] [stderr]    Compiling burn-core v0.16.1
[INFO] [stderr]    Compiling nvml-wrapper v0.10.0
[INFO] [stderr]    Compiling async-channel v2.3.1
[INFO] [stderr]    Compiling tracing-appender v0.2.3
[INFO] [stderr]    Compiling sysinfo v0.32.1
[INFO] [stderr]    Compiling js-sys v0.3.77
[INFO] [stderr]    Compiling console_error_panic_hook v0.1.7
[INFO] [stderr]    Compiling wasm-bindgen-futures v0.4.50
[INFO] [stderr]    Compiling burn-train v0.16.1
[INFO] [stderr]    Compiling burn v0.16.1
[INFO] [stderr]    Compiling shared v0.0.0 (/opt/rustwide/workdir/shared)
[INFO] [stderr]    Compiling web v0.0.0 (/opt/rustwide/workdir/web)
[INFO] [stderr]    Compiling train v0.0.0 (/opt/rustwide/workdir/train)
[INFO] [stdout] warning: unnecessary parentheses around closure body
[INFO] [stdout]   --> web/src/web.rs:52:53
[INFO] [stdout]    |
[INFO] [stdout] 52 |         let input: Vec<f32> = input.iter().map(|&x| (x / 255.0)).collect();
[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] 52 -         let input: Vec<f32> = input.iter().map(|&x| (x / 255.0)).collect();
[INFO] [stdout] 52 +         let input: Vec<f32> = input.iter().map(|&x| x / 255.0).collect();
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]   --> train/src/train.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 18 | use std::collections::HashMap;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static `ARTIFACT_DIR` is never used
[INFO] [stdout]   --> train/src/train.rs:20:8
[INFO] [stdout]    |
[INFO] [stdout] 20 | static ARTIFACT_DIR: &str = "/tmp/alphabet_recognizer";
[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 `CustomDataset` is never constructed
[INFO] [stdout]   --> train/src/train.rs:23:12
[INFO] [stdout]    |
[INFO] [stdout] 23 | pub struct CustomDataset {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> train/src/train.rs:28:12
[INFO] [stdout]    |
[INFO] [stdout] 27 | impl CustomDataset {
[INFO] [stdout]    | ------------------ associated function in this implementation
[INFO] [stdout] 28 |     pub fn new(items: Vec<FileItem>) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `CustomTrainingConfig` is never constructed
[INFO] [stdout]   --> train/src/train.rs:44:12
[INFO] [stdout]    |
[INFO] [stdout] 44 | pub struct CustomTrainingConfig {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `create_artifact_dir` is never used
[INFO] [stdout]   --> train/src/train.rs:60:4
[INFO] [stdout]    |
[INFO] [stdout] 60 | fn create_artifact_dir(artifact_dir: &str) {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run` is never used
[INFO] [stdout]   --> train/src/train.rs:65:8
[INFO] [stdout]    |
[INFO] [stdout] 65 | pub fn run<B: AutodiffBackend>(device: B::Device) {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4m 29s
[INFO] running `Command { std: "docker" "inspect" "bf037d97c66dab16cb3b1f36781d7588e290730a5be03edb1274ba1eb8b5a5f7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "bf037d97c66dab16cb3b1f36781d7588e290730a5be03edb1274ba1eb8b5a5f7" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2024 which implies `resolver = "3"`
[INFO] [stderr]   |
[INFO] [stderr]   = note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
[INFO] [stderr]   = note: to use the edition 2024 resolver, specify `workspace.resolver = "3"` in the workspace root's manifest
[INFO] [stderr]   = note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions
[INFO] [stderr] warning: web/Cargo.toml: `default-features` is ignored for burn, since `default-features` was not specified for `workspace.dependencies.burn`; overriding workspace `default-features` to false requires Rust 1.99+ and the 2024 edition
[INFO] [stderr] warning: `web` (manifest) generated 1 warning
[INFO] [stderr]    Compiling shared v0.0.0 (/opt/rustwide/workdir/shared)
[INFO] [stderr]    Compiling train v0.0.0 (/opt/rustwide/workdir/train)
[INFO] [stderr]    Compiling web v0.0.0 (/opt/rustwide/workdir/web)
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]   --> train/src/train.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 18 | use std::collections::HashMap;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around closure body
[INFO] [stdout]   --> web/src/web.rs:52:53
[INFO] [stdout]    |
[INFO] [stdout] 52 |         let input: Vec<f32> = input.iter().map(|&x| (x / 255.0)).collect();
[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] 52 -         let input: Vec<f32> = input.iter().map(|&x| (x / 255.0)).collect();
[INFO] [stdout] 52 +         let input: Vec<f32> = input.iter().map(|&x| x / 255.0).collect();
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static `ARTIFACT_DIR` is never used
[INFO] [stdout]   --> train/src/train.rs:20:8
[INFO] [stdout]    |
[INFO] [stdout] 20 | static ARTIFACT_DIR: &str = "/tmp/alphabet_recognizer";
[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 `CustomDataset` is never constructed
[INFO] [stdout]   --> train/src/train.rs:23:12
[INFO] [stdout]    |
[INFO] [stdout] 23 | pub struct CustomDataset {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> train/src/train.rs:28:12
[INFO] [stdout]    |
[INFO] [stdout] 27 | impl CustomDataset {
[INFO] [stdout]    | ------------------ associated function in this implementation
[INFO] [stdout] 28 |     pub fn new(items: Vec<FileItem>) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `CustomTrainingConfig` is never constructed
[INFO] [stdout]   --> train/src/train.rs:44:12
[INFO] [stdout]    |
[INFO] [stdout] 44 | pub struct CustomTrainingConfig {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `create_artifact_dir` is never used
[INFO] [stdout]   --> train/src/train.rs:60:4
[INFO] [stdout]    |
[INFO] [stdout] 60 | fn create_artifact_dir(artifact_dir: &str) {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run` is never used
[INFO] [stdout]   --> train/src/train.rs:65:8
[INFO] [stdout]    |
[INFO] [stdout] 65 | pub fn run<B: AutodiffBackend>(device: B::Device) {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 5.97s
[INFO] running `Command { std: "docker" "inspect" "bf037d97c66dab16cb3b1f36781d7588e290730a5be03edb1274ba1eb8b5a5f7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "bf037d97c66dab16cb3b1f36781d7588e290730a5be03edb1274ba1eb8b5a5f7" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "test" "--frozen", kill_on_drop: false }`
[INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2024 which implies `resolver = "3"`
[INFO] [stderr]   |
[INFO] [stderr]   = note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
[INFO] [stderr]   = note: to use the edition 2024 resolver, specify `workspace.resolver = "3"` in the workspace root's manifest
[INFO] [stderr]   = note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions
[INFO] [stderr] warning: web/Cargo.toml: `default-features` is ignored for burn, since `default-features` was not specified for `workspace.dependencies.burn`; overriding workspace `default-features` to false requires Rust 1.99+ and the 2024 edition
[INFO] [stderr] warning: `web` (manifest) generated 1 warning
[INFO] [stderr] warning: unused import: `std::collections::HashMap`
[INFO] [stderr]   --> train/src/train.rs:18:5
[INFO] [stderr]    |
[INFO] [stderr] 18 | use std::collections::HashMap;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: static `ARTIFACT_DIR` is never used
[INFO] [stderr]   --> train/src/train.rs:20:8
[INFO] [stderr]    |
[INFO] [stderr] 20 | static ARTIFACT_DIR: &str = "/tmp/alphabet_recognizer";
[INFO] [stderr]    |        ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct `CustomDataset` is never constructed
[INFO] [stderr]   --> train/src/train.rs:23:12
[INFO] [stderr]    |
[INFO] [stderr] 23 | pub struct CustomDataset {
[INFO] [stderr]    |            ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function `new` is never used
[INFO] [stderr]   --> train/src/train.rs:28:12
[INFO] [stderr]    |
[INFO] [stderr] 27 | impl CustomDataset {
[INFO] [stderr]    | ------------------ associated function in this implementation
[INFO] [stderr] 28 |     pub fn new(items: Vec<FileItem>) -> Self {
[INFO] [stderr]    |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `CustomTrainingConfig` is never constructed
[INFO] [stderr]   --> train/src/train.rs:44:12
[INFO] [stderr]    |
[INFO] [stderr] 44 | pub struct CustomTrainingConfig {
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `create_artifact_dir` is never used
[INFO] [stderr]   --> train/src/train.rs:60:4
[INFO] [stderr]    |
[INFO] [stderr] 60 | fn create_artifact_dir(artifact_dir: &str) {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `run` is never used
[INFO] [stderr]   --> train/src/train.rs:65:8
[INFO] [stderr]    |
[INFO] [stderr] 65 | pub fn run<B: AutodiffBackend>(device: B::Device) {
[INFO] [stderr]    |        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around closure body
[INFO] [stderr]   --> web/src/web.rs:52:53
[INFO] [stderr]    |
[INFO] [stderr] 52 |         let input: Vec<f32> = input.iter().map(|&x| (x / 255.0)).collect();
[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] 52 -         let input: Vec<f32> = input.iter().map(|&x| (x / 255.0)).collect();
[INFO] [stderr] 52 +         let input: Vec<f32> = input.iter().map(|&x| x / 255.0).collect();
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: `train` (bin "train" test) generated 7 warnings (run `cargo fix --bin "train" -p train --tests` to apply 1 suggestion)
[INFO] [stderr] warning: `web` (lib test) generated 1 warning (run `cargo fix --lib -p web --tests` to apply 1 suggestion)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.17s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/shared-a053f6555b343516)
[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] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/train-1d2910f5534ca072)
[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] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/web-bbfead9c4dd95f04)
[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] [stderr]    Doc-tests shared
[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" "bf037d97c66dab16cb3b1f36781d7588e290730a5be03edb1274ba1eb8b5a5f7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bf037d97c66dab16cb3b1f36781d7588e290730a5be03edb1274ba1eb8b5a5f7", kill_on_drop: false }`
[INFO] [stdout] bf037d97c66dab16cb3b1f36781d7588e290730a5be03edb1274ba1eb8b5a5f7