[INFO] cloning repository https://github.com/Xzyaihni/digitsrecog
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Xzyaihni/digitsrecog" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FXzyaihni%2Fdigitsrecog", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FXzyaihni%2Fdigitsrecog'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7bf4297e6b9b5061a862789dee54e40d398ebf8f
[INFO] testing Xzyaihni/digitsrecog against beta-2026-04-21 for beta-1.96-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FXzyaihni%2Fdigitsrecog" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/Xzyaihni/digitsrecog
[INFO] finished tweaking git repo https://github.com/Xzyaihni/digitsrecog
[INFO] tweaked toml for git repo https://github.com/Xzyaihni/digitsrecog written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Xzyaihni/digitsrecog on toolchain beta-2026-04-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/Xzyaihni/digitsrecog 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" "+beta-2026-04-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5b9ce1a17431d6c20539b49697e17cdf432f55e503b58a7716b378dfd77f690a
[INFO] running `Command { std: "docker" "start" "-a" "5b9ce1a17431d6c20539b49697e17cdf432f55e503b58a7716b378dfd77f690a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5b9ce1a17431d6c20539b49697e17cdf432f55e503b58a7716b378dfd77f690a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5b9ce1a17431d6c20539b49697e17cdf432f55e503b58a7716b378dfd77f690a", kill_on_drop: false }`
[INFO] [stdout] 5b9ce1a17431d6c20539b49697e17cdf432f55e503b58a7716b378dfd77f690a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1ba49f5bdcb8e1b2dda7797f64337171d4aaad650fbe90533affce8f0630b1f8
[INFO] running `Command { std: "docker" "start" "-a" "1ba49f5bdcb8e1b2dda7797f64337171d4aaad650fbe90533affce8f0630b1f8", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.47
[INFO] [stderr]    Compiling quote v1.0.21
[INFO] [stderr]    Compiling libc v0.2.138
[INFO] [stderr]    Compiling unicode-ident v1.0.5
[INFO] [stderr]    Compiling syn v1.0.105
[INFO] [stderr]    Compiling serde_derive v1.0.149
[INFO] [stderr]    Compiling serde v1.0.149
[INFO] [stderr]    Compiling half v1.8.2
[INFO] [stderr]    Compiling ciborium-io v0.2.0
[INFO] [stderr]    Compiling ppv-lite86 v0.2.17
[INFO] [stderr]    Compiling ciborium-ll v0.2.0
[INFO] [stderr]    Compiling getrandom v0.2.8
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling ciborium v0.2.0
[INFO] [stderr]    Compiling digitsrecog v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: method `size` is never used
[INFO] [stdout]   --> src/neural_net/layer.rs:87:12
[INFO] [stdout]    |
[INFO] [stdout] 57 | impl DefaultLayer
[INFO] [stdout]    | ----------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 87 |     pub fn size(&self) -> usize
[INFO] [stdout]    |            ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `size` is never used
[INFO] [stdout]   --> src/neural_net/layer.rs:87:12
[INFO] [stdout]    |
[INFO] [stdout] 57 | impl DefaultLayer
[INFO] [stdout]    | ----------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 87 |     pub fn size(&self) -> usize
[INFO] [stdout]    |            ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 11.78s
[INFO] running `Command { std: "docker" "inspect" "1ba49f5bdcb8e1b2dda7797f64337171d4aaad650fbe90533affce8f0630b1f8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1ba49f5bdcb8e1b2dda7797f64337171d4aaad650fbe90533affce8f0630b1f8", kill_on_drop: false }`
[INFO] [stdout] 1ba49f5bdcb8e1b2dda7797f64337171d4aaad650fbe90533affce8f0630b1f8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 31843ed2dfb034ddc2638342af8a688d7f14a5fd61afc0e56011da685a54a248
[INFO] running `Command { std: "docker" "start" "-a" "31843ed2dfb034ddc2638342af8a688d7f14a5fd61afc0e56011da685a54a248", kill_on_drop: false }`
[INFO] [stderr]    Compiling digitsrecog v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.40s
[INFO] running `Command { std: "docker" "inspect" "31843ed2dfb034ddc2638342af8a688d7f14a5fd61afc0e56011da685a54a248", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "31843ed2dfb034ddc2638342af8a688d7f14a5fd61afc0e56011da685a54a248", kill_on_drop: false }`
[INFO] [stdout] 31843ed2dfb034ddc2638342af8a688d7f14a5fd61afc0e56011da685a54a248
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 34d54e9187f888ff524f181d6e852fad67a215fc1b50aab2e39752111f4ec4a9
[INFO] running `Command { std: "docker" "start" "-a" "34d54e9187f888ff524f181d6e852fad67a215fc1b50aab2e39752111f4ec4a9", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/digitsrecog-e92d558e0f7cf67a)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test neural_net::tests::it_learns ... ok
[INFO] [stdout] test neural_net::tests::backprop ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.93s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/digitsrecog-8621c90465bb8ffb)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test neural_net::tests::it_learns ... ok
[INFO] [stdout] test neural_net::tests::backprop ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.34s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "34d54e9187f888ff524f181d6e852fad67a215fc1b50aab2e39752111f4ec4a9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "34d54e9187f888ff524f181d6e852fad67a215fc1b50aab2e39752111f4ec4a9", kill_on_drop: false }`
[INFO] [stdout] 34d54e9187f888ff524f181d6e852fad67a215fc1b50aab2e39752111f4ec4a9