[INFO] crate juggernaut 0.9.0 is already in cache
[INFO] extracting crate juggernaut 0.9.0 into work/ex/beta-1.38-1/sources/1.37.0/reg/juggernaut/0.9.0
[INFO] extracting crate juggernaut 0.9.0 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/juggernaut/0.9.0
[INFO] validating manifest of juggernaut-0.9.0 on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of juggernaut-0.9.0 on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing juggernaut-0.9.0
[INFO] finished frobbing juggernaut-0.9.0
[INFO] frobbed toml for juggernaut-0.9.0 written to work/ex/beta-1.38-1/sources/1.37.0/reg/juggernaut/0.9.0/Cargo.toml
[INFO] started frobbing juggernaut-0.9.0
[INFO] finished frobbing juggernaut-0.9.0
[INFO] frobbed toml for juggernaut-0.9.0 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/juggernaut/0.9.0/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] testing juggernaut-0.9.0 against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/juggernaut/0.9.0:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] d2ad831307c00b267029323bf4e716309952282db369583bbf2c8ae0cefdcf75
[INFO] running `"docker" "start" "-a" "d2ad831307c00b267029323bf4e716309952282db369583bbf2c8ae0cefdcf75"`
[INFO] [stderr]    Compiling assert_approx_eq v1.1.0
[INFO] [stderr]    Compiling juggernaut v0.9.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stderr]  --> src/lib.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #[macro_use]
[INFO] [stderr]   | ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/matrix.rs:13:41
[INFO] [stderr]    |
[INFO] [stderr] 13 |     fn generate(m: usize, n: usize, f: &Fn(usize, usize) -> f64) -> Self;
[INFO] [stderr]    |                                         ^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(usize, usize) -> f64`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/matrix.rs:14:48
[INFO] [stderr]    |
[INFO] [stderr] 14 |     fn generate_by_row(m: usize, n: usize, f: &Fn(usize) -> Vec<f64>) -> Self;
[INFO] [stderr]    |                                                ^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(usize) -> Vec<f64>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/matrix.rs:21:23
[INFO] [stderr]    |
[INFO] [stderr] 21 |     fn map(&self, f: &Fn(f64, usize, usize) -> f64) -> Matrix;
[INFO] [stderr]    |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(f64, usize, usize) -> f64`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/matrix.rs:22:27
[INFO] [stderr]    |
[INFO] [stderr] 22 |     fn map_row(&self, f: &Fn(Vec<f64>) -> Vec<f64>) -> Matrix;
[INFO] [stderr]    |                           ^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(Vec<f64>) -> Vec<f64>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/matrix.rs:40:41
[INFO] [stderr]    |
[INFO] [stderr] 40 |     fn generate(m: usize, n: usize, f: &Fn(usize, usize) -> f64) -> Matrix {
[INFO] [stderr]    |                                         ^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(usize, usize) -> f64`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/matrix.rs:60:48
[INFO] [stderr]    |
[INFO] [stderr] 60 |     fn generate_by_row(m: usize, n: usize, f: &Fn(usize) -> Vec<f64>) -> Matrix {
[INFO] [stderr]    |                                                ^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(usize) -> Vec<f64>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/matrix.rs:145:23
[INFO] [stderr]     |
[INFO] [stderr] 145 |     fn map(&self, f: &Fn(f64, usize, usize) -> f64) -> Matrix {
[INFO] [stderr]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(f64, usize, usize) -> f64`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/matrix.rs:150:27
[INFO] [stderr]     |
[INFO] [stderr] 150 |     fn map_row(&self, f: &Fn(Vec<f64>) -> Vec<f64>) -> Matrix {
[INFO] [stderr]     |                           ^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(Vec<f64>) -> Vec<f64>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/nl.rs:7:25
[INFO] [stderr]   |
[INFO] [stderr] 7 |     pub activation: Box<Activation>,
[INFO] [stderr]   |                         ^^^^^^^^^^ help: use `dyn`: `dyn Activation`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/nn.rs:15:24
[INFO] [stderr]    |
[INFO] [stderr] 15 |     cost_function: Box<CostFunction>,
[INFO] [stderr]    |                        ^^^^^^^^^^^^ help: use `dyn`: `dyn CostFunction`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/nn.rs:17:29
[INFO] [stderr]    |
[INFO] [stderr] 17 |     on_error_fn: Option<Box<Fn(f64)>>,
[INFO] [stderr]    |                             ^^^^^^^ help: use `dyn`: `dyn Fn(f64)`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/nn.rs:18:29
[INFO] [stderr]    |
[INFO] [stderr] 18 |     on_epoch_fn: Option<Box<Fn(&NeuralNetwork)>>,
[INFO] [stderr]    |                             ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&NeuralNetwork)`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.73s
[INFO] running `"docker" "inspect" "d2ad831307c00b267029323bf4e716309952282db369583bbf2c8ae0cefdcf75"`
[INFO] running `"docker" "rm" "-f" "d2ad831307c00b267029323bf4e716309952282db369583bbf2c8ae0cefdcf75"`
[INFO] [stdout] d2ad831307c00b267029323bf4e716309952282db369583bbf2c8ae0cefdcf75
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/juggernaut/0.9.0:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] b45fe06b72497723b405bc81ef7e12cddc9244ffafa2ef3bfc738cfaf3110d94
[INFO] running `"docker" "start" "-a" "b45fe06b72497723b405bc81ef7e12cddc9244ffafa2ef3bfc738cfaf3110d94"`
[INFO] [stderr]    Compiling juggernaut v0.9.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/matrix.rs:13:41
[INFO] [stderr]    |
[INFO] [stderr] 13 |     fn generate(m: usize, n: usize, f: &Fn(usize, usize) -> f64) -> Self;
[INFO] [stderr]    |                                         ^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(usize, usize) -> f64`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/matrix.rs:14:48
[INFO] [stderr]    |
[INFO] [stderr] 14 |     fn generate_by_row(m: usize, n: usize, f: &Fn(usize) -> Vec<f64>) -> Self;
[INFO] [stderr]    |                                                ^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(usize) -> Vec<f64>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/matrix.rs:21:23
[INFO] [stderr]    |
[INFO] [stderr] 21 |     fn map(&self, f: &Fn(f64, usize, usize) -> f64) -> Matrix;
[INFO] [stderr]    |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(f64, usize, usize) -> f64`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/matrix.rs:22:27
[INFO] [stderr]    |
[INFO] [stderr] 22 |     fn map_row(&self, f: &Fn(Vec<f64>) -> Vec<f64>) -> Matrix;
[INFO] [stderr]    |                           ^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(Vec<f64>) -> Vec<f64>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/matrix.rs:40:41
[INFO] [stderr]    |
[INFO] [stderr] 40 |     fn generate(m: usize, n: usize, f: &Fn(usize, usize) -> f64) -> Matrix {
[INFO] [stderr]    |                                         ^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(usize, usize) -> f64`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/matrix.rs:60:48
[INFO] [stderr]    |
[INFO] [stderr] 60 |     fn generate_by_row(m: usize, n: usize, f: &Fn(usize) -> Vec<f64>) -> Matrix {
[INFO] [stderr]    |                                                ^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(usize) -> Vec<f64>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/matrix.rs:145:23
[INFO] [stderr]     |
[INFO] [stderr] 145 |     fn map(&self, f: &Fn(f64, usize, usize) -> f64) -> Matrix {
[INFO] [stderr]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(f64, usize, usize) -> f64`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/matrix.rs:150:27
[INFO] [stderr]     |
[INFO] [stderr] 150 |     fn map_row(&self, f: &Fn(Vec<f64>) -> Vec<f64>) -> Matrix {
[INFO] [stderr]     |                           ^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(Vec<f64>) -> Vec<f64>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/nl.rs:7:25
[INFO] [stderr]   |
[INFO] [stderr] 7 |     pub activation: Box<Activation>,
[INFO] [stderr]   |                         ^^^^^^^^^^ help: use `dyn`: `dyn Activation`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/nn.rs:15:24
[INFO] [stderr]    |
[INFO] [stderr] 15 |     cost_function: Box<CostFunction>,
[INFO] [stderr]    |                        ^^^^^^^^^^^^ help: use `dyn`: `dyn CostFunction`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/nn.rs:17:29
[INFO] [stderr]    |
[INFO] [stderr] 17 |     on_error_fn: Option<Box<Fn(f64)>>,
[INFO] [stderr]    |                             ^^^^^^^ help: use `dyn`: `dyn Fn(f64)`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/nn.rs:18:29
[INFO] [stderr]    |
[INFO] [stderr] 18 |     on_epoch_fn: Option<Box<Fn(&NeuralNetwork)>>,
[INFO] [stderr]    |                             ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&NeuralNetwork)`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.18s
[INFO] running `"docker" "inspect" "b45fe06b72497723b405bc81ef7e12cddc9244ffafa2ef3bfc738cfaf3110d94"`
[INFO] running `"docker" "rm" "-f" "b45fe06b72497723b405bc81ef7e12cddc9244ffafa2ef3bfc738cfaf3110d94"`
[INFO] [stdout] b45fe06b72497723b405bc81ef7e12cddc9244ffafa2ef3bfc738cfaf3110d94
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/juggernaut/0.9.0:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+1.37.0" "test" "--frozen"`
[INFO] [stdout] d59c78e4b786ae4806341f424e75da589d337ae11f98398b4c59137f9b772a2c
[INFO] running `"docker" "start" "-a" "d59c78e4b786ae4806341f424e75da589d337ae11f98398b4c59137f9b772a2c"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/juggernaut-b715eb9fcc83044d
[INFO] [stdout] 
[INFO] [stdout] running 51 tests
[INFO] [stdout] test activation::hyperbolictangent::tests::tanh_derivative_test ... ok
[INFO] [stdout] test activation::hyperbolictangent::tests::tanh_test ... ok
[INFO] [stdout] test activation::identity::tests::identity_derivative_test ... ok
[INFO] [stdout] test activation::identity::tests::identity_test ... ok
[INFO] [stdout] test activation::sigmoid::tests::sigmoid_derivative_correctness_test ... ok
[INFO] [stdout] test activation::softmax::tests::softmax_derivative_correctness_test ... ignored
[INFO] [stdout] test activation::softmax::tests::softmax_test_nan ... ignored
[INFO] [stdout] test activation::softmax::tests::softmax_test ... ok
[INFO] [stdout] test activation::softplus::tests::softplus_derivative_test ... ok
[INFO] [stdout] test activation::sigmoid::tests::sigmoid_derivative_test ... ok
[INFO] [stdout] test activation::rectifiedlinearunit::tests::rectifiedlinearunit_test ... ok
[INFO] [stdout] test activation::softmax::tests::softmax_test_sum_one ... ok
[INFO] [stdout] test activation::rectifiedlinearunit::tests::rectifiedlinearunit_derivative_test ... ok
[INFO] [stdout] test activation::sigmoid::tests::sigmoid_test ... ok
[INFO] [stdout] test activation::leakyrectifiedlinearunit::tests::leakyrectifiedlinearunit_derivative_test ... ok
[INFO] [stdout] test cost::cross_entropy::tests::cross_entropy_calc_half_test ... ok
[INFO] [stdout] test activation::softplus::tests::softplus_test ... ok
[INFO] [stdout] test activation::leakyrectifiedlinearunit::tests::leakyrectifiedlinearunit_test ... ok
[INFO] [stdout] test cost::cross_entropy::tests::cross_entropy_calc_test ... ok
[INFO] [stdout] test math::tests::vec_dot ... ok
[INFO] [stdout] test matrix::tests::body ... ok
[INFO] [stdout] test matrix::tests::empty_matrix_test ... ok
[INFO] [stdout] test matrix::tests::from_vec ... ok
[INFO] [stdout] test matrix::tests::generate_by_row ... ok
[INFO] [stdout] test matrix::tests::map_row_variable_rows ... ok
[INFO] [stdout] test matrix::tests::random_mul_test1 ... ok
[INFO] [stdout] test matrix::tests::generate_by_row_variable_rows ... ok
[INFO] [stdout] test matrix::tests::random_mul_test3 ... ok
[INFO] [stdout] test matrix::tests::random_mul_test4 ... ok
[INFO] [stdout] test matrix::tests::transpose ... ok
[INFO] [stdout] test matrix::tests::random_matrix_test ... ok
[INFO] [stdout] test nn::tests::forward_test ... ok
[INFO] [stdout] test matrix::tests::random_matrix_get ... ok
[INFO] [stdout] test matrix::tests::random_mul_test2 ... ok
[INFO] [stdout] test nn::tests::get_layers_test ... ok
[INFO] [stdout] test nl::tests::new_neural_layer ... ok
[INFO] [stdout] test nn::tests::error_function_test ... ok
[INFO] [stdout] test nn::tests::train_test ... ok
[INFO] [stdout] test nn::tests::network_with_two_activations ... ok
[INFO] [stdout] test nn::tests::forward_test_2layers ... ok
[INFO] [stdout] test nn::tests::shuffle_data ... ok
[INFO] [stdout] test nn::tests::three_hidden_layers ... ok
[INFO] [stdout] test sample::tests::new_predict_inputs_count ... ok
[INFO] [stdout] test nn::tests::train_test_2layers_think ... ok
[INFO] [stdout] test sample::tests::inputs_count ... ok
[INFO] [stdout] test nn::tests::on_epoch_test ... ok
[INFO] [stdout] test nn::tests::train_test_multiclass ... ok
[INFO] [stdout] test nn::tests::two_hidden_layers ... ok
[INFO] [stdout] test sample::tests::new_predict_output_count ... ok
[INFO] [stdout] test sample::tests::outputs_count ... ok
[INFO] [stdout] test nn::tests::train_test_2layers ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 49 passed; 0 failed; 2 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests juggernaut
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/matrix.rs - matrix::Matrix::generate (line 31) ... ok
[INFO] [stdout] test src/nn.rs - nn::NeuralNetwork::add_layer (line 83) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "d59c78e4b786ae4806341f424e75da589d337ae11f98398b4c59137f9b772a2c"`
[INFO] running `"docker" "rm" "-f" "d59c78e4b786ae4806341f424e75da589d337ae11f98398b4c59137f9b772a2c"`
[INFO] [stdout] d59c78e4b786ae4806341f424e75da589d337ae11f98398b4c59137f9b772a2c