[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] testing perkins-rawks/handwritten_numbers_rust against beta-2022-04-10 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fperkins-rawks%2Fhandwritten_numbers_rust" "/workspace/builds/worker-68/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-68/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/perkins-rawks/handwritten_numbers_rust on toolchain beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[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-68/source/Cargo.toml
[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: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-68/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-68/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6329ae5a687323a4d828f2bdf95cdf1091cf824524774920284f1f54c567e6b3
[INFO] running `Command { std: "docker" "start" "-a" "6329ae5a687323a4d828f2bdf95cdf1091cf824524774920284f1f54c567e6b3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6329ae5a687323a4d828f2bdf95cdf1091cf824524774920284f1f54c567e6b3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6329ae5a687323a4d828f2bdf95cdf1091cf824524774920284f1f54c567e6b3", kill_on_drop: false }`
[INFO] [stdout] 6329ae5a687323a4d828f2bdf95cdf1091cf824524774920284f1f54c567e6b3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-68/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-68/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" "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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3ca7a037b8603b17e3b79fd94e6a5e52b66b9b335c8e3ccc5b8cc0427d24cdbb
[INFO] running `Command { std: "docker" "start" "-a" "3ca7a037b8603b17e3b79fd94e6a5e52b66b9b335c8e3ccc5b8cc0427d24cdbb", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.71
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling ppv-lite86 v0.2.8
[INFO] [stderr]    Compiling ndarray v0.13.1
[INFO] [stderr]    Compiling rawpointer v0.2.1
[INFO] [stderr]    Compiling cute v0.3.0
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]    Compiling num-integer v0.1.42
[INFO] [stderr]    Compiling matrixmultiply v0.2.3
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling rand_distr v0.2.2
[INFO] [stderr]    Compiling handwritten_numbers_rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct is never constructed: `Network`
[INFO] [stdout]   --> src/main.rs:30:8
[INFO] [stdout]    |
[INFO] [stdout] 30 | struct Network {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/main.rs:38:12
[INFO] [stdout]    |
[INFO] [stdout] 38 |     pub fn new(sizes: Vec<usize>) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `feedforward`
[INFO] [stdout]   --> src/main.rs:49:12
[INFO] [stdout]    |
[INFO] [stdout] 49 |     pub fn feedforward(&self, a: rustify::Array2<f64>) -> rustify::Array2<f64> {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `SGD`
[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, test_d...
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `update_mini_batch`
[INFO] [stdout]    --> src/main.rs:101:12
[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] 
[INFO] [stdout] warning: associated function is never used: `backprop`
[INFO] [stdout]    --> src/main.rs:134:12
[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] 
[INFO] [stdout] warning: associated function is never used: `evaluate`
[INFO] [stdout]    --> src/main.rs:171:12
[INFO] [stdout]     |
[INFO] [stdout] 171 |     pub fn evaluate(&self, test_data: & Vec<&mut (rustify::Array2<f64>, usize)>) -> usize {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `cost_derivative`
[INFO] [stdout]    --> src/main.rs:177:12
[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 is never used: `randn`
[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 is never used: `argmax`
[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, test_d...
[INFO] [stdout]    |            ^^^ help: convert the identifier to snake case: `sgd`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 11 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 28.68s
[INFO] running `Command { std: "docker" "inspect" "3ca7a037b8603b17e3b79fd94e6a5e52b66b9b335c8e3ccc5b8cc0427d24cdbb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3ca7a037b8603b17e3b79fd94e6a5e52b66b9b335c8e3ccc5b8cc0427d24cdbb", kill_on_drop: false }`
[INFO] [stdout] 3ca7a037b8603b17e3b79fd94e6a5e52b66b9b335c8e3ccc5b8cc0427d24cdbb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-68/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-68/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" "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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6e20f299eda1df60fa01c832b5e33f70cd29bd5d2e6629b2b5091d30944b59c3
[INFO] running `Command { std: "docker" "start" "-a" "6e20f299eda1df60fa01c832b5e33f70cd29bd5d2e6629b2b5091d30944b59c3", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling handwritten_numbers_rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct is never constructed: `Network`
[INFO] [stdout]   --> src/main.rs:30:8
[INFO] [stdout]    |
[INFO] [stdout] 30 | struct Network {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/main.rs:38:12
[INFO] [stdout]    |
[INFO] [stdout] 38 |     pub fn new(sizes: Vec<usize>) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `feedforward`
[INFO] [stdout]   --> src/main.rs:49:12
[INFO] [stdout]    |
[INFO] [stdout] 49 |     pub fn feedforward(&self, a: rustify::Array2<f64>) -> rustify::Array2<f64> {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `SGD`
[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, test_d...
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `update_mini_batch`
[INFO] [stdout]    --> src/main.rs:101:12
[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] 
[INFO] [stdout] warning: associated function is never used: `backprop`
[INFO] [stdout]    --> src/main.rs:134:12
[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] 
[INFO] [stdout] warning: associated function is never used: `evaluate`
[INFO] [stdout]    --> src/main.rs:171:12
[INFO] [stdout]     |
[INFO] [stdout] 171 |     pub fn evaluate(&self, test_data: & Vec<&mut (rustify::Array2<f64>, usize)>) -> usize {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `cost_derivative`
[INFO] [stdout]    --> src/main.rs:177:12
[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 is never used: `randn`
[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 is never used: `argmax`
[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, test_d...
[INFO] [stdout]    |            ^^^ help: convert the identifier to snake case: `sgd`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 11 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 4.36s
[INFO] [stderr]   Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/handwritten_numbers_rust-511bce3a13287c2d)
[INFO] running `Command { std: "docker" "inspect" "6e20f299eda1df60fa01c832b5e33f70cd29bd5d2e6629b2b5091d30944b59c3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6e20f299eda1df60fa01c832b5e33f70cd29bd5d2e6629b2b5091d30944b59c3", kill_on_drop: false }`
[INFO] [stdout] 6e20f299eda1df60fa01c832b5e33f70cd29bd5d2e6629b2b5091d30944b59c3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-68/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-68/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" "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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 226716063e117a62b0220c508c8d1c3d74c2e5765aed0bf5062c001f9cfc15f7
[INFO] running `Command { std: "docker" "start" "-a" "226716063e117a62b0220c508c8d1c3d74c2e5765aed0bf5062c001f9cfc15f7", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: struct is never constructed: `Network`
[INFO] [stderr]   --> src/main.rs:30:8
[INFO] [stderr]    |
[INFO] [stderr] 30 | struct Network {
[INFO] [stderr]    |        ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new`
[INFO] [stderr]   --> src/main.rs:38:12
[INFO] [stderr]    |
[INFO] [stderr] 38 |     pub fn new(sizes: Vec<usize>) -> Self {
[INFO] [stderr]    |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `feedforward`
[INFO] [stderr]   --> src/main.rs:49:12
[INFO] [stderr]    |
[INFO] [stderr] 49 |     pub fn feedforward(&self, a: rustify::Array2<f64>) -> rustify::Array2<f64> {
[INFO] [stderr]    |            ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `SGD`
[INFO] [stderr]   --> src/main.rs:57:12
[INFO] [stderr]    |
[INFO] [stderr] 57 |     pub fn SGD(&mut self, training_data: &mut Vec<(rustify::Array2<f64>, usize)>, epochs: usize, mini_batch_size: usize, eta: f64, test_d...
[INFO] [stderr]    |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `update_mini_batch`
[INFO] [stderr]    --> src/main.rs:101:12
[INFO] [stderr]     |
[INFO] [stderr] 101 |     pub fn update_mini_batch(&mut self, mini_batch: & Vec<(rustify::Array2<f64>, usize)>, eta: f64) {
[INFO] [stderr]     |            ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `backprop`
[INFO] [stderr]    --> src/main.rs:134:12
[INFO] [stderr]     |
[INFO] [stderr] 134 |     pub fn backprop(& self, x: & rustify::Array2<f64>, y: usize) -> (Vec< rustify::Array2<f64> >, Vec< rustify::Array2<f64> >){
[INFO] [stderr]     |            ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `evaluate`
[INFO] [stderr]    --> src/main.rs:171:12
[INFO] [stderr]     |
[INFO] [stderr] 171 |     pub fn evaluate(&self, test_data: & Vec<&mut (rustify::Array2<f64>, usize)>) -> usize {
[INFO] [stderr]     |            ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `cost_derivative`
[INFO] [stderr]    --> src/main.rs:177:12
[INFO] [stderr]     |
[INFO] [stderr] 177 |     pub fn cost_derivative(&self, output_activations: & rustify::Array2<f64>, y: usize) -> rustify::Array2<f64> {
[INFO] [stderr]     |            ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `randn`
[INFO] [stderr]   --> src/rustify.rs:32:8
[INFO] [stderr]    |
[INFO] [stderr] 32 | pub fn randn((x, y): (usize, usize)) -> Array2<f64> {
[INFO] [stderr]    |        ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `argmax`
[INFO] [stderr]   --> src/rustify.rs:67:8
[INFO] [stderr]    |
[INFO] [stderr] 67 | pub fn argmax(mat: &Array2<f64>) -> usize {
[INFO] [stderr]    |        ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method `SGD` should have a snake case name
[INFO] [stderr]   --> src/main.rs:57:12
[INFO] [stderr]    |
[INFO] [stderr] 57 |     pub fn SGD(&mut self, training_data: &mut Vec<(rustify::Array2<f64>, usize)>, epochs: usize, mini_batch_size: usize, eta: f64, test_d...
[INFO] [stderr]    |            ^^^ help: convert the identifier to snake case: `sgd`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `handwritten_numbers_rust` (bin "handwritten_numbers_rust" test) generated 11 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.26s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/handwritten_numbers_rust-511bce3a13287c2d)
[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" "226716063e117a62b0220c508c8d1c3d74c2e5765aed0bf5062c001f9cfc15f7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "226716063e117a62b0220c508c8d1c3d74c2e5765aed0bf5062c001f9cfc15f7", kill_on_drop: false }`
[INFO] [stdout] 226716063e117a62b0220c508c8d1c3d74c2e5765aed0bf5062c001f9cfc15f7