[INFO] updating cached repository https://github.com/flevesqu42/42_multilayer_perceptron
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/big/crater/work/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 3174d89e39d3bc0bca78f72eb539bdf402e9bda1
[INFO] testing flevesqu42/42_multilayer_perceptron against beta-2019-09-28 for beta-1.39-1
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Fflevesqu42%2F42_multilayer_perceptron" "work/builds/worker-5/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/flevesqu42/42_multilayer_perceptron on toolchain beta-2019-09-28
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/flevesqu42/42_multilayer_perceptron
[INFO] finished tweaking git repo https://github.com/flevesqu42/42_multilayer_perceptron
[INFO] tweaked toml for git repo https://github.com/flevesqu42/42_multilayer_perceptron written to work/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/flevesqu42/42_multilayer_perceptron already has a lockfile, it will not be regenerated
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-5/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2019-09-28" "build" "--frozen"`
[INFO] [stdout] 9c918a7bd4b2a79d8b3f6f6054df309321d0d4bc367952ad85bfcd26e057e228
[INFO] running `"docker" "start" "-a" "9c918a7bd4b2a79d8b3f6f6054df309321d0d4bc367952ad85bfcd26e057e228"`
[INFO] [stderr]    Compiling syn v0.15.29
[INFO] [stderr]    Compiling serde v1.0.89
[INFO] [stderr]    Compiling yaml-rust v0.4.3
[INFO] [stderr]    Compiling memchr v2.2.0
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling csv-core v0.1.5
[INFO] [stderr]    Compiling serde_derive v1.0.89
[INFO] [stderr]    Compiling csv v1.0.5
[INFO] [stderr]    Compiling serde_yaml v0.8.8
[INFO] [stderr]    Compiling multilayer_perceptron v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `std::mem`
[INFO] [stderr]  --> src/perceptron/gradient_descent.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::mem;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'rand::Rng::shuffle': use SliceRandom::shuffle instead
[INFO] [stderr]   --> src/perceptron/training.rs:13:7
[INFO] [stderr]    |
[INFO] [stderr] 13 |         rng.shuffle(& mut training_dataset);
[INFO] [stderr]    |             ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'rand::Rng::shuffle': use SliceRandom::shuffle instead
[INFO] [stderr]   --> src/perceptron/gradient_descent.rs:28:7
[INFO] [stderr]    |
[INFO] [stderr] 28 |         rng.shuffle(training_dataset);
[INFO] [stderr]    |             ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `features_count`
[INFO] [stderr]   --> src/dataset/mod.rs:52:2
[INFO] [stderr]    |
[INFO] [stderr] 52 |     pub fn features_count(& self) -> usize {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `output_size`
[INFO] [stderr]   --> src/dataset/mod.rs:56:2
[INFO] [stderr]    |
[INFO] [stderr] 56 |     pub fn output_size(& self) -> usize {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: static item is never used: `VERBOSE`
[INFO] [stderr]  --> src/perceptron/configuration.rs:3:1
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub static VERBOSE : bool = true;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 38.71s
[INFO] running `"docker" "inspect" "9c918a7bd4b2a79d8b3f6f6054df309321d0d4bc367952ad85bfcd26e057e228"`
[INFO] running `"docker" "rm" "-f" "9c918a7bd4b2a79d8b3f6f6054df309321d0d4bc367952ad85bfcd26e057e228"`
[INFO] [stdout] 9c918a7bd4b2a79d8b3f6f6054df309321d0d4bc367952ad85bfcd26e057e228
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-5/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2019-09-28" "test" "--frozen" "--no-run"`
[INFO] [stdout] 4b19a09f9cf6c4d2e86050c8395e11ab9fd802c8325a26a36b8db8bb56d1b01c
[INFO] running `"docker" "start" "-a" "4b19a09f9cf6c4d2e86050c8395e11ab9fd802c8325a26a36b8db8bb56d1b01c"`
[INFO] [stderr]    Compiling multilayer_perceptron v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `std::mem`
[INFO] [stderr]  --> src/perceptron/gradient_descent.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::mem;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'rand::Rng::shuffle': use SliceRandom::shuffle instead
[INFO] [stderr]   --> src/perceptron/training.rs:13:7
[INFO] [stderr]    |
[INFO] [stderr] 13 |         rng.shuffle(& mut training_dataset);
[INFO] [stderr]    |             ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'rand::Rng::shuffle': use SliceRandom::shuffle instead
[INFO] [stderr]   --> src/perceptron/gradient_descent.rs:28:7
[INFO] [stderr]    |
[INFO] [stderr] 28 |         rng.shuffle(training_dataset);
[INFO] [stderr]    |             ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `matrix`
[INFO] [stderr]  --> src/maths/matrix/tests.rs:7:6
[INFO] [stderr]   |
[INFO] [stderr] 7 |     let matrix = Matrix::new(vec![vec![]]);
[INFO] [stderr]   |         ^^^^^^ help: consider prefixing with an underscore: `_matrix`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `matrix`
[INFO] [stderr]   --> src/maths/matrix/tests.rs:13:6
[INFO] [stderr]    |
[INFO] [stderr] 13 |     let matrix = Matrix::new(vec![]);
[INFO] [stderr]    |         ^^^^^^ help: consider prefixing with an underscore: `_matrix`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `vector`
[INFO] [stderr]   --> src/maths/matrix/tests.rs:31:6
[INFO] [stderr]    |
[INFO] [stderr] 31 |     let vector = Vector::new(vec![]);
[INFO] [stderr]    |         ^^^^^^ help: consider prefixing with an underscore: `_vector`
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `features_count`
[INFO] [stderr]   --> src/dataset/mod.rs:52:2
[INFO] [stderr]    |
[INFO] [stderr] 52 |     pub fn features_count(& self) -> usize {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `output_size`
[INFO] [stderr]   --> src/dataset/mod.rs:56:2
[INFO] [stderr]    |
[INFO] [stderr] 56 |     pub fn output_size(& self) -> usize {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: static item is never used: `VERBOSE`
[INFO] [stderr]  --> src/perceptron/configuration.rs:3:1
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub static VERBOSE : bool = true;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.22s
[INFO] running `"docker" "inspect" "4b19a09f9cf6c4d2e86050c8395e11ab9fd802c8325a26a36b8db8bb56d1b01c"`
[INFO] running `"docker" "rm" "-f" "4b19a09f9cf6c4d2e86050c8395e11ab9fd802c8325a26a36b8db8bb56d1b01c"`
[INFO] [stdout] 4b19a09f9cf6c4d2e86050c8395e11ab9fd802c8325a26a36b8db8bb56d1b01c
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-5/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2019-09-28" "test" "--frozen"`
[INFO] [stdout] 1c31a6f096644159f7dd64d2ecc72e22850b6cac886b8e2a7e6c77d4a62a796f
[INFO] running `"docker" "start" "-a" "1c31a6f096644159f7dd64d2ecc72e22850b6cac886b8e2a7e6c77d4a62a796f"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/multilayer_perceptron-e24aea26ca148cca
[INFO] [stdout] 
[INFO] [stdout] running 31 tests
[INFO] [stdout] test maths::matrix::tests::add_matrix_matrix ... ok
[INFO] [stdout] test maths::matrix::tests::dot ... ok
[INFO] [stdout] test maths::matrix::tests::add_vector_vector ... ok
[INFO] [stdout] test maths::matrix::tests::hadamard_inplace_matrix_matrix ... ok
[INFO] [stdout] test maths::matrix::tests::hadamard_inplace_vector_matrix ... ok
[INFO] [stdout] test maths::matrix::tests::hadamard_inplace_matrix_vector ... ok
[INFO] [stdout] test maths::matrix::tests::hadamard_matrix_matrix ... ok
[INFO] [stdout] test maths::matrix::tests::hadamard_inplace_vector_vector ... ok
[INFO] [stdout] test maths::matrix::tests::hadamard_vector_matrix ... ok
[INFO] [stdout] test maths::matrix::tests::hadamard_vector_vector ... ok
[INFO] [stdout] test maths::matrix::tests::matrix_transpose_2r ... ok
[INFO] [stdout] test maths::matrix::tests::matrix_transpose_3r ... ok
[INFO] [stdout] test maths::matrix::tests::hadamard_matrix_vector ... ok
[INFO] [stdout] test maths::matrix::tests::matrix_transpose_1r ... ok
[INFO] [stdout] test maths::matrix::tests::matrix_transpose_4r ... ok
[INFO] [stdout] test maths::matrix::tests::mul_matrix_matrix ... ok
[INFO] [stdout] test maths::matrix::tests::mul_matrix_vector ... ok
[INFO] [stdout] test maths::matrix::tests::new_matrix ... ok
[INFO] [stdout] test maths::matrix::tests::mul_vector_matrix ... ok
[INFO] [stdout] test maths::matrix::tests::new_vector ... ok
[INFO] [stdout] test maths::matrix::tests::scalar_matrix ... ok
[INFO] [stdout] test maths::matrix::tests::sub_matrix_matrix ... ok
[INFO] [stdout] test maths::matrix::tests::scalar_vector ... ok
[INFO] [stdout] test maths::matrix::tests::vector_transpose ... ok
[INFO] [stdout] test maths::matrix::tests::sub_vector_vector ... ok
[INFO] [stdout] test maths::matrix::tests::hadamard_fail ... ok
[INFO] [stdout] test maths::matrix::tests::new_matrix_empty_col ... ok
[INFO] [stdout] test maths::matrix::tests::hadamard_inplace_fail ... ok
[INFO] [stdout] test maths::matrix::tests::new_matrix_empty_row ... ok
[INFO] [stdout] test maths::matrix::tests::new_vector_empty ... ok
[INFO] [stdout] test maths::matrix::tests::dot_fail ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 31 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "1c31a6f096644159f7dd64d2ecc72e22850b6cac886b8e2a7e6c77d4a62a796f"`
[INFO] running `"docker" "rm" "-f" "1c31a6f096644159f7dd64d2ecc72e22850b6cac886b8e2a7e6c77d4a62a796f"`
[INFO] [stdout] 1c31a6f096644159f7dd64d2ecc72e22850b6cac886b8e2a7e6c77d4a62a796f