[INFO] cloning repository https://github.com/jkama4/mnist_rustlib
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jkama4/mnist_rustlib" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjkama4%2Fmnist_rustlib", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjkama4%2Fmnist_rustlib'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8bcdc2e2db8b745869585fb1b042885c2dd7016b
[INFO] testing jkama4/mnist_rustlib against 1.99.0-beta.1+cargoflags=--release for beta-release-1.99-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjkama4%2Fmnist_rustlib" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/jkama4/mnist_rustlib
[INFO] finished tweaking git repo https://github.com/jkama4/mnist_rustlib
[INFO] tweaked toml for git repo https://github.com/jkama4/mnist_rustlib written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/jkama4/mnist_rustlib on toolchain 1.99.0-beta.1
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.99.0-beta.1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/jkama4/mnist_rustlib 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.1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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@sha256:8683fc1fc2eb5c9ac98e0d076ab094b2ffac7f99da555d2b6a2e27f346de2ec7" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 9781bfa8dae6e72a131a7d080475423591751576b8f9e5356b723100eeb8490f
[INFO] running `Command { std: "docker" "start" "9781bfa8dae6e72a131a7d080475423591751576b8f9e5356b723100eeb8490f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9781bfa8dae6e72a131a7d080475423591751576b8f9e5356b723100eeb8490f", 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" "9781bfa8dae6e72a131a7d080475423591751576b8f9e5356b723100eeb8490f" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9781bfa8dae6e72a131a7d080475423591751576b8f9e5356b723100eeb8490f", 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" "9781bfa8dae6e72a131a7d080475423591751576b8f9e5356b723100eeb8490f" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.1" "build" "--frozen" "--message-format=json" "--release", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.105
[INFO] [stderr]    Compiling unicode-ident v1.0.22
[INFO] [stderr]    Compiling quote v1.0.43
[INFO] [stderr]    Compiling memchr v2.7.6
[INFO] [stderr]    Compiling ucd-trie v0.1.7
[INFO] [stderr]    Compiling crc32fast v1.5.0
[INFO] [stderr]    Compiling num-complex v0.4.6
[INFO] [stderr]    Compiling matrixmultiply v0.3.10
[INFO] [stderr]    Compiling zlib-rs v0.5.5
[INFO] [stderr]    Compiling log v0.4.29
[INFO] [stderr]    Compiling bumpalo v3.19.1
[INFO] [stderr]    Compiling simd-adler32 v0.3.8
[INFO] [stderr]    Compiling pest v2.8.5
[INFO] [stderr]    Compiling zopfli v0.8.3
[INFO] [stderr]    Compiling indexmap v2.12.1
[INFO] [stderr]    Compiling syn v2.0.113
[INFO] [stderr]    Compiling byteorder v1.5.0
[INFO] [stderr]    Compiling pest_meta v2.8.5
[INFO] [stderr]    Compiling ndarray v0.17.1
[INFO] [stderr]    Compiling pest_generator v2.8.5
[INFO] [stderr]    Compiling libz-rs-sys v0.5.5
[INFO] [stderr]    Compiling flate2 v1.1.5
[INFO] [stderr]    Compiling pest_derive v2.8.5
[INFO] [stderr]    Compiling py_literal v0.4.0
[INFO] [stderr]    Compiling zip v6.0.0
[INFO] [stderr]    Compiling npyz v0.8.4
[INFO] [stderr]    Compiling ndarray-npy v0.10.0
[INFO] [stderr]    Compiling mnist_rustlib v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved import `itertools`
[INFO] [stdout]  --> src/math.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use itertools::izip;
[INFO] [stdout]   |     ^^^^^^^^^ use of unresolved module or unlinked crate `itertools`
[INFO] [stdout]   |
[INFO] [stdout]   = help: if you wanted to use a crate named `itertools`, use `cargo add itertools` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `rand`
[INFO] [stdout]  --> src/math.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use rand::Rng;
[INFO] [stdout]   |     ^^^^ use of unresolved module or unlinked crate `rand`
[INFO] [stdout]   |
[INFO] [stdout]   = help: if you wanted to use a crate named `rand`, use `cargo add rand` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `itertools`
[INFO] [stdout]  --> src/main.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use itertools::izip;
[INFO] [stdout]   |     ^^^^^^^^^ use of unresolved module or unlinked crate `itertools`
[INFO] [stdout]   |
[INFO] [stdout]   = help: if you wanted to use a crate named `itertools`, use `cargo add itertools` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::error::Error`
[INFO] [stdout]  --> src/math.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::error::Error;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: cannot find module or crate `rand` in this scope
[INFO] [stdout]   --> src/math.rs:49:19
[INFO] [stdout]    |
[INFO] [stdout] 49 |     let mut rng = rand::rng();
[INFO] [stdout]    |                   ^^^^ use of unresolved module or unlinked crate `rand`
[INFO] [stdout]    |
[INFO] [stdout]    = help: if you wanted to use a crate named `rand`, use `cargo add rand` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `epoch`
[INFO] [stdout]   --> src/main.rs:37:9
[INFO] [stdout]    |
[INFO] [stdout] 37 |     for epoch in 0..epochs {
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_epoch`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `loss`
[INFO] [stdout]   --> src/main.rs:49:17
[INFO] [stdout]    |
[INFO] [stdout] 49 |             let loss: f32 = cnn::cross_entropy(&probabilities, train_target[i] as usize);
[INFO] [stdout]    |                 ^^^^ help: if this is intentional, prefix it with an underscore: `_loss`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0432, E0433.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `mnist_rustlib` (bin "mnist_rustlib") due to 4 previous errors; 3 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "9781bfa8dae6e72a131a7d080475423591751576b8f9e5356b723100eeb8490f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9781bfa8dae6e72a131a7d080475423591751576b8f9e5356b723100eeb8490f", kill_on_drop: false }`
[INFO] [stdout] 9781bfa8dae6e72a131a7d080475423591751576b8f9e5356b723100eeb8490f
