[INFO] cloning repository https://github.com/dhruvkjain/mnist-nn-rs [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dhruvkjain/mnist-nn-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdhruvkjain%2Fmnist-nn-rs", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdhruvkjain%2Fmnist-nn-rs'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] adce5d26a49af388c10ddebd41284013a044f58b [INFO] checking dhruvkjain/mnist-nn-rs against master#2c0f4860cc86e2354a55ea04e738848168435c90 for pr-149145 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdhruvkjain%2Fmnist-nn-rs" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/dhruvkjain/mnist-nn-rs [INFO] finished tweaking git repo https://github.com/dhruvkjain/mnist-nn-rs [INFO] tweaked toml for git repo https://github.com/dhruvkjain/mnist-nn-rs written to /workspace/builds/worker-5-tc1/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/dhruvkjain/mnist-nn-rs on toolchain 2c0f4860cc86e2354a55ea04e738848168435c90 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2c0f4860cc86e2354a55ea04e738848168435c90" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/dhruvkjain/mnist-nn-rs 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" "+2c0f4860cc86e2354a55ea04e738848168435c90" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded polars-arrow-format v0.1.0 [INFO] [stderr] Downloaded unicode-reverse v1.0.9 [INFO] [stderr] Downloaded planus v0.3.1 [INFO] [stderr] Downloaded polars-schema v0.47.0 [INFO] [stderr] Downloaded polars-error v0.47.0 [INFO] [stderr] Downloaded polars-utils v0.47.0 [INFO] [stderr] Downloaded ndarray-rand v0.15.0 [INFO] [stderr] Downloaded chrono-tz-build v0.4.1 [INFO] [stderr] Downloaded polars-row v0.47.0 [INFO] [stderr] Downloaded polars-time v0.47.0 [INFO] [stderr] Downloaded polars-mem-engine v0.47.0 [INFO] [stderr] Downloaded argminmax v0.6.2 [INFO] [stderr] Downloaded polars-pipe v0.47.0 [INFO] [stderr] Downloaded polars-lazy v0.47.0 [INFO] [stderr] Downloaded polars v0.47.0 [INFO] [stderr] Downloaded polars-ops v0.47.0 [INFO] [stderr] Downloaded polars-stream v0.47.0 [INFO] [stderr] Downloaded polars-parquet v0.47.0 [INFO] [stderr] Downloaded polars-io v0.47.0 [INFO] [stderr] Downloaded polars-compute v0.47.0 [INFO] [stderr] Downloaded polars-expr v0.47.0 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"--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:94a0c148923f5b2b52a63ef0eeb1882ad339ab61bce784c8077cbe41c61feb6c" "/opt/rustwide/cargo-home/bin/cargo" "+2c0f4860cc86e2354a55ea04e738848168435c90" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 4f32fb5c41c5792ffdea08a10681f3ada3f1e7ba63a5a4d89e03fddc95ebc883 [INFO] running `Command { std: "docker" "start" "-a" "4f32fb5c41c5792ffdea08a10681f3ada3f1e7ba63a5a4d89e03fddc95ebc883", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "4f32fb5c41c5792ffdea08a10681f3ada3f1e7ba63a5a4d89e03fddc95ebc883", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "4f32fb5c41c5792ffdea08a10681f3ada3f1e7ba63a5a4d89e03fddc95ebc883", kill_on_drop: false }` [INFO] [stdout] 4f32fb5c41c5792ffdea08a10681f3ada3f1e7ba63a5a4d89e03fddc95ebc883 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:94a0c148923f5b2b52a63ef0eeb1882ad339ab61bce784c8077cbe41c61feb6c" "/opt/rustwide/cargo-home/bin/cargo" "+2c0f4860cc86e2354a55ea04e738848168435c90" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] ac8038146ce1280bc8ed66c56961c5fa3e0aa087259beb9d467bdd5b01c9d992 [INFO] running `Command { std: "docker" "start" "-a" "ac8038146ce1280bc8ed66c56961c5fa3e0aa087259beb9d467bdd5b01c9d992", kill_on_drop: false }` [INFO] [stderr] Compiling libm v0.2.13 [INFO] [stderr] Compiling serde v1.0.219 [INFO] [stderr] Compiling zerocopy v0.8.25 [INFO] [stderr] Compiling libc v0.2.172 [INFO] [stderr] Compiling num-traits v0.2.19 [INFO] [stderr] Compiling siphasher v1.0.1 [INFO] [stderr] Compiling rand v0.8.5 [INFO] [stderr] Checking getrandom v0.2.16 [INFO] [stderr] Checking parking_lot_core v0.9.10 [INFO] [stderr] Checking bitflags v2.9.0 [INFO] [stderr] Checking array-init-cursor v0.2.1 [INFO] [stderr] Compiling parse-zoneinfo v0.3.1 [INFO] [stderr] Checking rayon v1.10.0 [INFO] [stderr] Compiling slotmap v1.0.7 [INFO] [stderr] Checking foldhash v0.1.5 [INFO] [stderr] Checking signal-hook v0.3.17 [INFO] [stderr] Checking planus v0.3.1 [INFO] [stderr] Compiling 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&mut testing_data); [INFO] [stdout] | ----^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:20:10 [INFO] [stdout] | [INFO] [stdout] 20 | let (mut z1, mut a1, mut z2, mut a2) = forward_propagation(w1, b1, w2, b2, &mut testing_data); [INFO] [stdout] | ----^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:20:18 [INFO] [stdout] | [INFO] [stdout] 20 | let (mut z1, mut a1, mut z2, mut a2) = forward_propagation(w1, b1, w2, b2, &mut testing_data); [INFO] [stdout] | ----^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:20:26 [INFO] [stdout] | [INFO] [stdout] 20 | let (mut z1, mut a1, mut z2, mut a2) = forward_propagation(w1, b1, w2, b2, &mut testing_data); [INFO] [stdout] | ----^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:20:18 [INFO] [stdout] | [INFO] [stdout] 20 | let (mut z1, mut a1, mut z2, mut a2) = forward_propagation(w1, b1, w2, b2, &mut testing_data); [INFO] [stdout] | ----^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:20:26 [INFO] [stdout] | [INFO] [stdout] 20 | let (mut z1, mut a1, mut z2, mut a2) = forward_propagation(w1, b1, w2, b2, &mut testing_data); [INFO] [stdout] | ----^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:20:34 [INFO] [stdout] | [INFO] [stdout] 20 | let (mut z1, mut a1, mut z2, mut a2) = forward_propagation(w1, b1, w2, b2, &mut testing_data); [INFO] [stdout] | ----^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:20:34 [INFO] [stdout] | [INFO] [stdout] 20 | let (mut z1, mut a1, mut z2, mut a2) = forward_propagation(w1, b1, w2, b2, &mut testing_data); [INFO] [stdout] | ----^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `z1` [INFO] [stdout] --> src/main.rs:20:10 [INFO] [stdout] | [INFO] [stdout] 20 | let (mut z1, mut a1, mut z2, mut a2) = forward_propagation(w1, b1, w2, b2, &mut testing_data); [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_z1` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `a1` [INFO] [stdout] --> src/main.rs:20:18 [INFO] [stdout] | [INFO] [stdout] 20 | let (mut z1, mut a1, mut z2, mut a2) = forward_propagation(w1, b1, w2, b2, &mut testing_data); [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_a1` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `z1` [INFO] [stdout] --> src/main.rs:20:10 [INFO] [stdout] | [INFO] [stdout] 20 | let (mut z1, mut a1, mut z2, mut a2) = forward_propagation(w1, b1, w2, b2, &mut testing_data); [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_z1` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `z2` [INFO] [stdout] --> src/main.rs:20:26 [INFO] [stdout] | [INFO] [stdout] 20 | let (mut z1, mut a1, mut z2, mut a2) = forward_propagation(w1, b1, w2, b2, &mut testing_data); [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_z2` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `a1` [INFO] [stdout] --> src/main.rs:20:18 [INFO] [stdout] | [INFO] [stdout] 20 | let (mut z1, mut a1, mut z2, mut a2) = forward_propagation(w1, b1, w2, b2, &mut testing_data); [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_a1` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `z2` [INFO] [stdout] --> src/main.rs:20:26 [INFO] [stdout] | [INFO] [stdout] 20 | let (mut z1, mut a1, mut z2, mut a2) = forward_propagation(w1, b1, w2, b2, &mut testing_data); [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_z2` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:34:30 [INFO] [stdout] | [INFO] [stdout] 34 | let (mut z1, mut a1, mut z2, mut a2) = forward_propagation(&mut w1, &mut b1, &mut w2, &mut b2, &mut training_data); [INFO] [stdout] | ----^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:34:30 [INFO] [stdout] | [INFO] [stdout] 34 | let (mut z1, mut a1, mut z2, mut a2) = forward_propagation(&mut w1, &mut b1, &mut w2, &mut b2, &mut training_data); [INFO] [stdout] | ----^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `z2` [INFO] [stdout] --> src/main.rs:34:30 [INFO] [stdout] | [INFO] [stdout] 34 | let (mut z1, mut a1, mut z2, mut a2) = forward_propagation(&mut w1, &mut b1, &mut w2, &mut b2, &mut training_data); [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_z2` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `z2` [INFO] [stdout] --> src/main.rs:34:30 [INFO] [stdout] | [INFO] [stdout] 34 | let (mut z1, mut a1, mut z2, mut a2) = forward_propagation(&mut w1, &mut b1, &mut w2, &mut b2, &mut training_data); [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_z2` [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 1m 01s [INFO] running `Command { std: "docker" "inspect" "ac8038146ce1280bc8ed66c56961c5fa3e0aa087259beb9d467bdd5b01c9d992", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ac8038146ce1280bc8ed66c56961c5fa3e0aa087259beb9d467bdd5b01c9d992", kill_on_drop: false }` [INFO] [stdout] ac8038146ce1280bc8ed66c56961c5fa3e0aa087259beb9d467bdd5b01c9d992