[INFO] cloning repository https://github.com/perkins-rawks/handwritten_numbers_rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/perkins-rawks/handwritten_numbers_rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fperkins-rawks%2Fhandwritten_numbers_rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fperkins-rawks%2Fhandwritten_numbers_rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b66b58a3fad26e550564c31d3db5b5e341f50e42
[INFO] checking perkins-rawks/handwritten_numbers_rust against master#4eb62535fc12dd1a63fd43a4173e224e79313c4d for pr-158816
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fperkins-rawks%2Fhandwritten_numbers_rust" "/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/perkins-rawks/handwritten_numbers_rust
[INFO] finished tweaking git repo https://github.com/perkins-rawks/handwritten_numbers_rust
[INFO] tweaked toml for git repo https://github.com/perkins-rawks/handwritten_numbers_rust written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/perkins-rawks/handwritten_numbers_rust on toolchain 4eb62535fc12dd1a63fd43a4173e224e79313c4d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4eb62535fc12dd1a63fd43a4173e224e79313c4d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/perkins-rawks/handwritten_numbers_rust 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" "+4eb62535fc12dd1a63fd43a4173e224e79313c4d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded rand_distr v0.2.2
[INFO] [stderr]   Downloaded cute v0.3.0
[INFO] [stderr]   Downloaded ppv-lite86 v0.2.8
[INFO] [stderr]   Downloaded matrixmultiply v0.2.3
[INFO] [stderr]   Downloaded ndarray v0.13.1
[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@sha256:3d5ced03c013a94a2f102a4510f48a6e9184255caf5fd8244f58017bde7f5210" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 856add50f80a8430fd1984911268c94c08d251a6660fd4b1251a670904c4face
[INFO] running `Command { std: "docker" "start" "856add50f80a8430fd1984911268c94c08d251a6660fd4b1251a670904c4face", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "856add50f80a8430fd1984911268c94c08d251a6660fd4b1251a670904c4face", 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" "856add50f80a8430fd1984911268c94c08d251a6660fd4b1251a670904c4face" "/opt/rustwide/cargo-home/bin/cargo" "+4eb62535fc12dd1a63fd43a4173e224e79313c4d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "856add50f80a8430fd1984911268c94c08d251a6660fd4b1251a670904c4face", 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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-w" "/opt/rustwide/workdir" "--user" "0:0" "856add50f80a8430fd1984911268c94c08d251a6660fd4b1251a670904c4face" "/opt/rustwide/cargo-home/bin/cargo" "+4eb62535fc12dd1a63fd43a4173e224e79313c4d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]    Compiling libc v0.2.71
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]     Checking ppv-lite86 v0.2.8
[INFO] [stderr]    Compiling ndarray v0.13.1
[INFO] [stderr]     Checking cute v0.3.0
[INFO] [stderr]     Checking matrixmultiply v0.2.3
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]    Compiling num-integer v0.1.42
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking rand_distr v0.2.2
[INFO] [stderr]     Checking handwritten_numbers_rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `Network` is never constructed
[INFO] [stdout]   --> src/main.rs:30:8
[INFO] [stdout]    |
[INFO] [stdout] 30 | struct Network {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple associated items are never used
[INFO] [stdout]    --> src/main.rs:38:12
[INFO] [stdout]     |
[INFO] [stdout]  37 | impl Network {
[INFO] [stdout]     | ------------ associated items in this implementation
[INFO] [stdout]  38 |     pub fn new(sizes: Vec<usize>) -> Self {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout]  49 |     pub fn feedforward(&self, a: rustify::Array2<f64>) -> rustify::Array2<f64> {
[INFO] [stdout]     |            ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  57 |     pub fn SGD(&mut self, training_data: &mut Vec<(rustify::Array2<f64>, usize)>, epochs: usize, mini_batch_size: usize, eta: f64, ...
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 101 |     pub fn update_mini_batch(&mut self, mini_batch: & Vec<(rustify::Array2<f64>, usize)>, eta: f64) {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 134 |     pub fn backprop(& self, x: & rustify::Array2<f64>, y: usize) -> (Vec< rustify::Array2<f64> >, Vec< rustify::Array2<f64> >){
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 171 |     pub fn evaluate(&self, test_data: & Vec<&mut (rustify::Array2<f64>, usize)>) -> usize {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 177 |     pub fn cost_derivative(&self, output_activations: & rustify::Array2<f64>, y: usize) -> rustify::Array2<f64> {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `randn` is never used
[INFO] [stdout]   --> src/rustify.rs:32:8
[INFO] [stdout]    |
[INFO] [stdout] 32 | pub fn randn((x, y): (usize, usize)) -> Array2<f64> {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `argmax` is never used
[INFO] [stdout]   --> src/rustify.rs:67:8
[INFO] [stdout]    |
[INFO] [stdout] 67 | pub fn argmax(mat: &Array2<f64>) -> usize {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `SGD` should have a snake case name
[INFO] [stdout]   --> src/main.rs:57:12
[INFO] [stdout]    |
[INFO] [stdout] 57 |     pub fn SGD(&mut self, training_data: &mut Vec<(rustify::Array2<f64>, usize)>, epochs: usize, mini_batch_size: usize, eta: f64, t...
[INFO] [stdout]    |            ^^^ help: convert the identifier to snake case: `sgd`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Network` is never constructed
[INFO] [stdout]   --> src/main.rs:30:8
[INFO] [stdout]    |
[INFO] [stdout] 30 | struct Network {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple associated items are never used
[INFO] [stdout]    --> src/main.rs:38:12
[INFO] [stdout]     |
[INFO] [stdout]  37 | impl Network {
[INFO] [stdout]     | ------------ associated items in this implementation
[INFO] [stdout]  38 |     pub fn new(sizes: Vec<usize>) -> Self {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout]  49 |     pub fn feedforward(&self, a: rustify::Array2<f64>) -> rustify::Array2<f64> {
[INFO] [stdout]     |            ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  57 |     pub fn SGD(&mut self, training_data: &mut Vec<(rustify::Array2<f64>, usize)>, epochs: usize, mini_batch_size: usize, eta: f64, ...
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 101 |     pub fn update_mini_batch(&mut self, mini_batch: & Vec<(rustify::Array2<f64>, usize)>, eta: f64) {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 134 |     pub fn backprop(& self, x: & rustify::Array2<f64>, y: usize) -> (Vec< rustify::Array2<f64> >, Vec< rustify::Array2<f64> >){
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 171 |     pub fn evaluate(&self, test_data: & Vec<&mut (rustify::Array2<f64>, usize)>) -> usize {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 177 |     pub fn cost_derivative(&self, output_activations: & rustify::Array2<f64>, y: usize) -> rustify::Array2<f64> {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `randn` is never used
[INFO] [stdout]   --> src/rustify.rs:32:8
[INFO] [stdout]    |
[INFO] [stdout] 32 | pub fn randn((x, y): (usize, usize)) -> Array2<f64> {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `argmax` is never used
[INFO] [stdout]   --> src/rustify.rs:67:8
[INFO] [stdout]    |
[INFO] [stdout] 67 | pub fn argmax(mat: &Array2<f64>) -> usize {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `SGD` should have a snake case name
[INFO] [stdout]   --> src/main.rs:57:12
[INFO] [stdout]    |
[INFO] [stdout] 57 |     pub fn SGD(&mut self, training_data: &mut Vec<(rustify::Array2<f64>, usize)>, epochs: usize, mini_batch_size: usize, eta: f64, t...
[INFO] [stdout]    |            ^^^ help: convert the identifier to snake case: `sgd`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.57s
[INFO] running `Command { std: "docker" "inspect" "856add50f80a8430fd1984911268c94c08d251a6660fd4b1251a670904c4face", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "856add50f80a8430fd1984911268c94c08d251a6660fd4b1251a670904c4face", kill_on_drop: false }`
[INFO] [stdout] 856add50f80a8430fd1984911268c94c08d251a6660fd4b1251a670904c4face
