[INFO] updating cached repository flevesqu42/42_multilayer_perceptron
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/flevesqu42/42_multilayer_perceptron
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/flevesqu42/42_multilayer_perceptron" "work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/flevesqu42/42_multilayer_perceptron"`
[INFO] [stderr] Cloning into 'work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/flevesqu42/42_multilayer_perceptron'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/flevesqu42/42_multilayer_perceptron" "work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/flevesqu42/42_multilayer_perceptron"`
[INFO] [stderr] Cloning into 'work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/flevesqu42/42_multilayer_perceptron'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 3174d89e39d3bc0bca78f72eb539bdf402e9bda1
[INFO] sha for GitHub repo flevesqu42/42_multilayer_perceptron: 3174d89e39d3bc0bca78f72eb539bdf402e9bda1
[INFO] validating manifest of flevesqu42/42_multilayer_perceptron on toolchain master#60960a260f7b5c695fd0717311d72ce62dd4eb43
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of flevesqu42/42_multilayer_perceptron on toolchain try#266783e4e09e4e9d5307c1c8e695659c58bbcac7
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing flevesqu42/42_multilayer_perceptron
[INFO] finished frobbing flevesqu42/42_multilayer_perceptron
[INFO] frobbed toml for flevesqu42/42_multilayer_perceptron written to work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/flevesqu42/42_multilayer_perceptron/Cargo.toml
[INFO] started frobbing flevesqu42/42_multilayer_perceptron
[INFO] finished frobbing flevesqu42/42_multilayer_perceptron
[INFO] frobbed toml for flevesqu42/42_multilayer_perceptron written to work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/flevesqu42/42_multilayer_perceptron/Cargo.toml
[INFO] crate flevesqu42/42_multilayer_perceptron already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking flevesqu42/42_multilayer_perceptron against try#266783e4e09e4e9d5307c1c8e695659c58bbcac7 for pr-63376
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63376/worker-1/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/flevesqu42/42_multilayer_perceptron:/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=forbid" "-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" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] b9f38d837a0d94dd62d1fb382ea68da4c1f2de6f6a7c4335d2a6134d8695052d
[INFO] running `"docker" "start" "-a" "b9f38d837a0d94dd62d1fb382ea68da4c1f2de6f6a7c4335d2a6134d8695052d"`
[INFO] [stderr]     Checking memchr v2.2.0
[INFO] [stderr]     Checking serde_yaml v0.8.8
[INFO] [stderr]     Checking csv-core v0.1.5
[INFO] [stderr]     Checking csv v1.0.5
[INFO] [stderr]     Checking multilayer_perceptron v0.1.0 (/opt/crater/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: 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: 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] 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 9.64s
[INFO] running `"docker" "inspect" "b9f38d837a0d94dd62d1fb382ea68da4c1f2de6f6a7c4335d2a6134d8695052d"`
[INFO] running `"docker" "rm" "-f" "b9f38d837a0d94dd62d1fb382ea68da4c1f2de6f6a7c4335d2a6134d8695052d"`
[INFO] [stdout] b9f38d837a0d94dd62d1fb382ea68da4c1f2de6f6a7c4335d2a6134d8695052d