[INFO] cloning repository https://github.com/drakeor/rust-neural-net
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/drakeor/rust-neural-net" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdrakeor%2Frust-neural-net", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdrakeor%2Frust-neural-net'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d6ac4a97deb7595a5aff9b75e00b8fa0dc2bdad8
[INFO] testing drakeor/rust-neural-net against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdrakeor%2Frust-neural-net" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/drakeor/rust-neural-net on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/drakeor/rust-neural-net
[INFO] finished tweaking git repo https://github.com/drakeor/rust-neural-net
[INFO] tweaked toml for git repo https://github.com/drakeor/rust-neural-net written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/drakeor/rust-neural-net already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5afd172616b35bb57ef2077e46771120ab8070a6df1b59f8f319925f251c1ee2
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "5afd172616b35bb57ef2077e46771120ab8070a6df1b59f8f319925f251c1ee2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5afd172616b35bb57ef2077e46771120ab8070a6df1b59f8f319925f251c1ee2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5afd172616b35bb57ef2077e46771120ab8070a6df1b59f8f319925f251c1ee2", kill_on_drop: false }`
[INFO] [stdout] 5afd172616b35bb57ef2077e46771120ab8070a6df1b59f8f319925f251c1ee2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f2784f366f2a5bedc417d0752aeb114272fb41d3517ec1b60fffc65e4df2e3db
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "f2784f366f2a5bedc417d0752aeb114272fb41d3517ec1b60fffc65e4df2e3db", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.4
[INFO] [stderr]    Compiling num-integer v0.1.38
[INFO] [stderr]    Compiling matrixmultiply v0.1.14
[INFO] [stderr]    Compiling num-iter v0.1.37
[INFO] [stderr]    Compiling num v0.1.42
[INFO] [stderr]    Compiling rulinalg v0.4.2
[INFO] [stderr]    Compiling rust_neuralnet v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `inputLayerSize`
[INFO] [stdout]   --> src/main.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     inputLayerSize : i32,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `outputLayerSize`
[INFO] [stdout]   --> src/main.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     outputLayerSize : i32,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `hiddenLayerSize`
[INFO] [stdout]   --> src/main.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     hiddenLayerSize : i32,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: structure field `inputLayerSize` should have a snake case name
[INFO] [stdout]   --> src/main.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     inputLayerSize : i32,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^ help: convert the identifier to snake case: `input_layer_size`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: structure field `outputLayerSize` should have a snake case name
[INFO] [stdout]   --> src/main.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     outputLayerSize : i32,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `output_layer_size`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: structure field `hiddenLayerSize` should have a snake case name
[INFO] [stdout]   --> src/main.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     hiddenLayerSize : i32,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `hidden_layer_size`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `costFunctionPrime` should have a snake case name
[INFO] [stdout]   --> src/main.rs:45:12
[INFO] [stdout]    |
[INFO] [stdout] 45 |     pub fn costFunctionPrime(&mut self, X : Matrix<f32>, y : Matrix<f32>) -> (Matrix<f32>, Matrix<f32>) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `cost_function_prime`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `X` should have a snake case name
[INFO] [stdout]   --> src/main.rs:45:41
[INFO] [stdout]    |
[INFO] [stdout] 45 |     pub fn costFunctionPrime(&mut self, X : Matrix<f32>, y : Matrix<f32>) -> (Matrix<f32>, Matrix<f32>) {
[INFO] [stdout]    |                                         ^ help: convert the identifier to snake case (notice the capitalization): `x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `yHat` should have a snake case name
[INFO] [stdout]   --> src/main.rs:46:13
[INFO] [stdout]    |
[INFO] [stdout] 46 |         let yHat = self.forward(X.clone());
[INFO] [stdout]    |             ^^^^ help: convert the identifier to snake case: `y_hat`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `X` should have a snake case name
[INFO] [stdout]   --> src/main.rs:78:9
[INFO] [stdout]    |
[INFO] [stdout] 78 |     let X = Matrix::new(3, 2, vec![
[INFO] [stdout]    |         ^ help: convert the identifier to snake case (notice the capitalization): `x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.28s
[INFO] running `Command { std: "docker" "inspect" "f2784f366f2a5bedc417d0752aeb114272fb41d3517ec1b60fffc65e4df2e3db", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f2784f366f2a5bedc417d0752aeb114272fb41d3517ec1b60fffc65e4df2e3db", kill_on_drop: false }`
[INFO] [stdout] f2784f366f2a5bedc417d0752aeb114272fb41d3517ec1b60fffc65e4df2e3db
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fbfb82df4fc0246751e2c58594bf851090b949799dd31a52d471c08696789d89
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "fbfb82df4fc0246751e2c58594bf851090b949799dd31a52d471c08696789d89", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling rust_neuralnet v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `inputLayerSize`
[INFO] [stdout]   --> src/main.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     inputLayerSize : i32,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `outputLayerSize`
[INFO] [stdout]   --> src/main.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     outputLayerSize : i32,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `hiddenLayerSize`
[INFO] [stdout]   --> src/main.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     hiddenLayerSize : i32,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: structure field `inputLayerSize` should have a snake case name
[INFO] [stdout]   --> src/main.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     inputLayerSize : i32,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^ help: convert the identifier to snake case: `input_layer_size`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: structure field `outputLayerSize` should have a snake case name
[INFO] [stdout]   --> src/main.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     outputLayerSize : i32,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `output_layer_size`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: structure field `hiddenLayerSize` should have a snake case name
[INFO] [stdout]   --> src/main.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     hiddenLayerSize : i32,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `hidden_layer_size`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `costFunctionPrime` should have a snake case name
[INFO] [stdout]   --> src/main.rs:45:12
[INFO] [stdout]    |
[INFO] [stdout] 45 |     pub fn costFunctionPrime(&mut self, X : Matrix<f32>, y : Matrix<f32>) -> (Matrix<f32>, Matrix<f32>) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `cost_function_prime`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `X` should have a snake case name
[INFO] [stdout]   --> src/main.rs:45:41
[INFO] [stdout]    |
[INFO] [stdout] 45 |     pub fn costFunctionPrime(&mut self, X : Matrix<f32>, y : Matrix<f32>) -> (Matrix<f32>, Matrix<f32>) {
[INFO] [stdout]    |                                         ^ help: convert the identifier to snake case (notice the capitalization): `x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `yHat` should have a snake case name
[INFO] [stdout]   --> src/main.rs:46:13
[INFO] [stdout]    |
[INFO] [stdout] 46 |         let yHat = self.forward(X.clone());
[INFO] [stdout]    |             ^^^^ help: convert the identifier to snake case: `y_hat`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `X` should have a snake case name
[INFO] [stdout]   --> src/main.rs:78:9
[INFO] [stdout]    |
[INFO] [stdout] 78 |     let X = Matrix::new(3, 2, vec![
[INFO] [stdout]    |         ^ help: convert the identifier to snake case (notice the capitalization): `x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.73s
[INFO] running `Command { std: "docker" "inspect" "fbfb82df4fc0246751e2c58594bf851090b949799dd31a52d471c08696789d89", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fbfb82df4fc0246751e2c58594bf851090b949799dd31a52d471c08696789d89", kill_on_drop: false }`
[INFO] [stdout] fbfb82df4fc0246751e2c58594bf851090b949799dd31a52d471c08696789d89
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 66874c0a7f6485097bdd42f42432f23f510186b8b313dcb82372571e3910b17a
[INFO] running `Command { std: "docker" "start" "-a" "66874c0a7f6485097bdd42f42432f23f510186b8b313dcb82372571e3910b17a", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr] warning: field is never read: `inputLayerSize`
[INFO] [stdout] running 1 test
[INFO] [stderr]   --> src/main.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 |     inputLayerSize : i32,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `outputLayerSize`
[INFO] [stderr]   --> src/main.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 |     outputLayerSize : i32,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `hiddenLayerSize`
[INFO] [stderr]   --> src/main.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 |     hiddenLayerSize : i32,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: structure field `inputLayerSize` should have a snake case name
[INFO] [stderr]   --> src/main.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 |     inputLayerSize : i32,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^ help: convert the identifier to snake case: `input_layer_size`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: structure field `outputLayerSize` should have a snake case name
[INFO] [stderr]   --> src/main.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 |     outputLayerSize : i32,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `output_layer_size`
[INFO] [stderr] 
[INFO] [stderr] warning: structure field `hiddenLayerSize` should have a snake case name
[INFO] [stderr]   --> src/main.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 |     hiddenLayerSize : i32,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `hidden_layer_size`
[INFO] [stderr] 
[INFO] [stderr] warning: method `costFunctionPrime` should have a snake case name
[INFO] [stderr]   --> src/main.rs:45:12
[INFO] [stderr]    |
[INFO] [stderr] 45 |     pub fn costFunctionPrime(&mut self, X : Matrix<f32>, y : Matrix<f32>) -> (Matrix<f32>, Matrix<f32>) {
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `cost_function_prime`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `X` should have a snake case name
[INFO] [stderr]   --> src/main.rs:45:41
[INFO] [stderr]    |
[INFO] [stderr] 45 |     pub fn costFunctionPrime(&mut self, X : Matrix<f32>, y : Matrix<f32>) -> (Matrix<f32>, Matrix<f32>) {
[INFO] [stderr]    |                                         ^ help: convert the identifier to snake case (notice the capitalization): `x`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `yHat` should have a snake case name
[INFO] [stderr]   --> src/main.rs:46:13
[INFO] [stderr]    |
[INFO] [stderr] 46 |         let yHat = self.forward(X.clone());
[INFO] [stderr]    |             ^^^^ help: convert the identifier to snake case: `y_hat`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `X` should have a snake case name
[INFO] [stderr]   --> src/main.rs:78:9
[INFO] [stderr]    |
[INFO] [stderr] 78 |     let X = Matrix::new(3, 2, vec![
[INFO] [stderr]    |         ^ help: convert the identifier to snake case (notice the capitalization): `x`
[INFO] [stderr] 
[INFO] [stderr] warning: `rust_neuralnet` (bin "rust_neuralnet" test) generated 10 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rust_neuralnet-5780af7441c4b436)
[INFO] [stdout] test test_sigmoid ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "66874c0a7f6485097bdd42f42432f23f510186b8b313dcb82372571e3910b17a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "66874c0a7f6485097bdd42f42432f23f510186b8b313dcb82372571e3910b17a", kill_on_drop: false }`
[INFO] [stdout] 66874c0a7f6485097bdd42f42432f23f510186b8b313dcb82372571e3910b17a