[INFO] updating cached repository Kaduo/neural_net
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/Kaduo/neural_net
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/Kaduo/neural_net" "work/ex/clippy-test-run/sources/stable/gh/Kaduo/neural_net"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable/gh/Kaduo/neural_net'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/Kaduo/neural_net" "work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/Kaduo/neural_net"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/Kaduo/neural_net'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 9f747397c0825c0c000e57a66574b9c6e53eb3fa
[INFO] sha for GitHub repo Kaduo/neural_net: 9f747397c0825c0c000e57a66574b9c6e53eb3fa
[INFO] validating manifest of Kaduo/neural_net on toolchain stable
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of Kaduo/neural_net on toolchain stable+rustflags=-Dclippy::into_iter_on_array
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing Kaduo/neural_net
[INFO] finished frobbing Kaduo/neural_net
[INFO] frobbed toml for Kaduo/neural_net written to work/ex/clippy-test-run/sources/stable/gh/Kaduo/neural_net/Cargo.toml
[INFO] started frobbing Kaduo/neural_net
[INFO] finished frobbing Kaduo/neural_net
[INFO] frobbed toml for Kaduo/neural_net written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/Kaduo/neural_net/Cargo.toml
[INFO] crate Kaduo/neural_net has a lockfile. skipping
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] linting Kaduo/neural_net against stable for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-6/stable:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable/gh/Kaduo/neural_net:/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" "+stable" "clippy" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 9f2d99a9de1767592c555b6be1ecf437dcb26a8b7a14540cffc3b44abc7c4116
[INFO] running `"docker" "start" "-a" "9f2d99a9de1767592c555b6be1ecf437dcb26a8b7a14540cffc3b44abc7c4116"`
[INFO] [stderr]     Checking num-complex v0.1.41
[INFO] [stderr]     Checking serde_json v1.0.9
[INFO] [stderr]     Checking alga v0.5.2
[INFO] [stderr]     Checking nalgebra v0.13.1
[INFO] [stderr]     Checking neural_net v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/lib.rs:72:19
[INFO] [stderr]    |
[INFO] [stderr] 72 |         return Network {sizes: sizes,
[INFO] [stderr]    |                         ^^^^^^^^^^^^ help: replace it with: `sizes`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::redundant_field_names)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/lib.rs:73:7
[INFO] [stderr]    |
[INFO] [stderr] 73 |                         weights: weights,
[INFO] [stderr]    |                         ^^^^^^^^^^^^^^^^ help: replace it with: `weights`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/lib.rs:74:7
[INFO] [stderr]    |
[INFO] [stderr] 74 |                         biases: biases,
[INFO] [stderr]    |                         ^^^^^^^^^^^^^^ help: replace it with: `biases`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/lib.rs:75:7
[INFO] [stderr]    |
[INFO] [stderr] 75 |                         nb_layers: nb_layers}
[INFO] [stderr]    |                         ^^^^^^^^^^^^^^^^^^^^ help: replace it with: `nb_layers`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/lib.rs:72:19
[INFO] [stderr]    |
[INFO] [stderr] 72 |         return Network {sizes: sizes,
[INFO] [stderr]    |                         ^^^^^^^^^^^^ help: replace it with: `sizes`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::redundant_field_names)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/lib.rs:73:7
[INFO] [stderr]    |
[INFO] [stderr] 73 |                         weights: weights,
[INFO] [stderr]    |                         ^^^^^^^^^^^^^^^^ help: replace it with: `weights`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/lib.rs:74:7
[INFO] [stderr]    |
[INFO] [stderr] 74 |                         biases: biases,
[INFO] [stderr]    |                         ^^^^^^^^^^^^^^ help: replace it with: `biases`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/lib.rs:75:7
[INFO] [stderr]    |
[INFO] [stderr] 75 |                         nb_layers: nb_layers}
[INFO] [stderr]    |                         ^^^^^^^^^^^^^^^^^^^^ help: replace it with: `nb_layers`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/load_mnist.rs:52:2
[INFO] [stderr]    |
[INFO] [stderr] 52 |     return Ok((train, test));
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `Ok((train, test))`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::needless_return)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/lib.rs:24:2
[INFO] [stderr]    |
[INFO] [stderr] 24 |     return 1.0/(1.0 + (-z).exp())
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `1.0/(1.0 + (-z).exp())`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/lib.rs:28:2
[INFO] [stderr]    |
[INFO] [stderr] 28 |     return sigmoid(z)*(1.0 - sigmoid(z))
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `sigmoid(z)*(1.0 - sigmoid(z))`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/lib.rs:34:2
[INFO] [stderr]    |
[INFO] [stderr] 34 |     return output_activations - expected_output
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `output_activations - expected_output`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/lib.rs:72:3
[INFO] [stderr]    |
[INFO] [stderr] 72 |           return Network {sizes: sizes,
[INFO] [stderr]    |  _________^
[INFO] [stderr] 73 | |                         weights: weights,
[INFO] [stderr] 74 | |                         biases: biases,
[INFO] [stderr] 75 | |                         nb_layers: nb_layers}
[INFO] [stderr]    | |_____________________________________________^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] help: remove `return` as shown
[INFO] [stderr]    |
[INFO] [stderr] 72 |         Network {sizes: sizes,
[INFO] [stderr] 73 |                         weights: weights,
[INFO] [stderr] 74 |                         biases: biases,
[INFO] [stderr] 75 |                         nb_layers: nb_layers}
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/lib.rs:83:3
[INFO] [stderr]    |
[INFO] [stderr] 83 |         return Ok(());
[INFO] [stderr]    |         ^^^^^^^^^^^^^^ help: remove `return` as shown: `Ok(())`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/lib.rs:88:3
[INFO] [stderr]    |
[INFO] [stderr] 88 |         return serde_json::from_reader(file);
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `serde_json::from_reader(file)`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/lib.rs:101:3
[INFO] [stderr]     |
[INFO] [stderr] 101 |         return output
[INFO] [stderr]     |         ^^^^^^^^^^^^^ help: remove `return` as shown: `output`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/lib.rs:185:3
[INFO] [stderr]     |
[INFO] [stderr] 185 |         return (nabla_biases_final, nabla_weights_final)
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `(nabla_biases_final, nabla_weights_final)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/load_mnist.rs:52:2
[INFO] [stderr]    |
[INFO] [stderr] 52 |     return Ok((train, test));
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `Ok((train, test))`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::needless_return)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/lib.rs:24:2
[INFO] [stderr]    |
[INFO] [stderr] 24 |     return 1.0/(1.0 + (-z).exp())
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `1.0/(1.0 + (-z).exp())`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/lib.rs:28:2
[INFO] [stderr]    |
[INFO] [stderr] 28 |     return sigmoid(z)*(1.0 - sigmoid(z))
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `sigmoid(z)*(1.0 - sigmoid(z))`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/lib.rs:34:2
[INFO] [stderr]    |
[INFO] [stderr] 34 |     return output_activations - expected_output
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `output_activations - expected_output`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/lib.rs:72:3
[INFO] [stderr]    |
[INFO] [stderr] 72 |           return Network {sizes: sizes,
[INFO] [stderr]    |  _________^
[INFO] [stderr] 73 | |                         weights: weights,
[INFO] [stderr] 74 | |                         biases: biases,
[INFO] [stderr] 75 | |                         nb_layers: nb_layers}
[INFO] [stderr]    | |_____________________________________________^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] help: remove `return` as shown
[INFO] [stderr]    |
[INFO] [stderr] 72 |         Network {sizes: sizes,
[INFO] [stderr] 73 |                         weights: weights,
[INFO] [stderr] 74 |                         biases: biases,
[INFO] [stderr] 75 |                         nb_layers: nb_layers}
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/lib.rs:83:3
[INFO] [stderr]    |
[INFO] [stderr] 83 |         return Ok(());
[INFO] [stderr]    |         ^^^^^^^^^^^^^^ help: remove `return` as shown: `Ok(())`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/lib.rs:88:3
[INFO] [stderr]    |
[INFO] [stderr] 88 |         return serde_json::from_reader(file);
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `serde_json::from_reader(file)`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/lib.rs:101:3
[INFO] [stderr]     |
[INFO] [stderr] 101 |         return output
[INFO] [stderr]     |         ^^^^^^^^^^^^^ help: remove `return` as shown: `output`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/lib.rs:185:3
[INFO] [stderr]     |
[INFO] [stderr] 185 |         return (nabla_biases_final, nabla_weights_final)
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `(nabla_biases_final, nabla_weights_final)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: very complex type used. Consider factoring parts into `type` definitions
[INFO] [stderr]   --> src/load_mnist.rs:17:23
[INFO] [stderr]    |
[INFO] [stderr] 17 |   pub fn load_data() -> Result<(Vec<(DVector<f64>, DVector<f64>)>,Vec<(DVector<f64>, DVector<f64>)>),
[INFO] [stderr]    |  _______________________^
[INFO] [stderr] 18 | |                         io::Error> {
[INFO] [stderr]    | |__________________________________^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::type_complexity)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#type_complexity
[INFO] [stderr] 
[INFO] [stderr] error: handle read amount returned or use `Read::read_exact` instead
[INFO] [stderr]   --> src/load_mnist.rs:26:2
[INFO] [stderr]    |
[INFO] [stderr] 26 |     train_images.read(&mut [0; SKIP_BYTES_TRAINING_IMAGES])?;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[deny(clippy::unused_io_amount)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_io_amount
[INFO] [stderr] 
[INFO] [stderr] error: handle read amount returned or use `Read::read_exact` instead
[INFO] [stderr]   --> src/load_mnist.rs:27:2
[INFO] [stderr]    |
[INFO] [stderr] 27 |     train_labels.read(&mut [0; SKIP_BYTES_TRAINING_LABELS])?;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_io_amount
[INFO] [stderr] 
[INFO] [stderr] error: handle read amount returned or use `Read::read_exact` instead
[INFO] [stderr]   --> src/load_mnist.rs:33:3
[INFO] [stderr]    |
[INFO] [stderr] 33 |         train_images.read(&mut image)?;
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_io_amount
[INFO] [stderr] 
[INFO] [stderr] error: handle read amount returned or use `Read::read_exact` instead
[INFO] [stderr]   --> src/load_mnist.rs:34:3
[INFO] [stderr]    |
[INFO] [stderr] 34 |         train_labels.read(&mut label)?;
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_io_amount
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to f64 may become silently lossy if types change
[INFO] [stderr]   --> src/load_mnist.rs:38:28
[INFO] [stderr]    |
[INFO] [stderr] 38 |                     &image.iter().map(|x| (*x as f64)/255.0).collect::<Vec<_>>()[..]),
[INFO] [stderr]    |                                           ^^^^^^^^^^^ help: try: `f64::from(*x)`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::cast_lossless)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] error: handle read amount returned or use `Read::read_exact` instead
[INFO] [stderr]   --> src/load_mnist.rs:43:3
[INFO] [stderr]    |
[INFO] [stderr] 43 |         train_images.read(&mut image)?;
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_io_amount
[INFO] [stderr] 
[INFO] [stderr] error: handle read amount returned or use `Read::read_exact` instead
[INFO] [stderr]   --> src/load_mnist.rs:44:3
[INFO] [stderr]    |
[INFO] [stderr] 44 |         train_labels.read(&mut label)?;
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_io_amount
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to f64 may become silently lossy if types change
[INFO] [stderr]   --> src/load_mnist.rs:48:28
[INFO] [stderr]    |
[INFO] [stderr] 48 |                     &image.iter().map(|x| (*x as f64)/255.0).collect::<Vec<_>>()[..]),
[INFO] [stderr]    |                                           ^^^^^^^^^^^ help: try: `f64::from(*x)`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]    --> src/lib.rs:104:36
[INFO] [stderr]     |
[INFO] [stderr] 104 |     pub fn evaluate(&self, test_data: &Vec<(DVector<f64>, DVector<f64>)>) {
[INFO] [stderr]     |                                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: change this to: `&[(DVector<f64>, DVector<f64>)]`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::ptr_arg)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr] error: strict comparison of f32 or f64
[INFO] [stderr]    --> src/lib.rs:118:7
[INFO] [stderr]     |
[INFO] [stderr] 118 |             if expected_output[imax] == 1.0 {
[INFO] [stderr]     |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider comparing them within some error: `(expected_output[imax] - 1.0).abs() < error`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[deny(clippy::float_cmp)] on by default
[INFO] [stderr] note: std::f32::EPSILON and std::f64::EPSILON are available.
[INFO] [stderr]    --> src/lib.rs:118:7
[INFO] [stderr]     |
[INFO] [stderr] 118 |             if expected_output[imax] == 1.0 {
[INFO] [stderr]     |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#float_cmp
[INFO] [stderr] 
[INFO] [stderr] warning: an inclusive range would be more readable
[INFO] [stderr]    --> src/lib.rs:157:12
[INFO] [stderr]     |
[INFO] [stderr] 157 |         for l in 2..(n+1) {
[INFO] [stderr]     |                  ^^^^^^^^ help: use: `2..=n`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::range_plus_one)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#range_plus_one
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 7 previous errors
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `neural_net`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] warning: very complex type used. Consider factoring parts into `type` definitions
[INFO] [stderr]   --> src/load_mnist.rs:17:23
[INFO] [stderr]    |
[INFO] [stderr] 17 |   pub fn load_data() -> Result<(Vec<(DVector<f64>, DVector<f64>)>,Vec<(DVector<f64>, DVector<f64>)>),
[INFO] [stderr]    |  _______________________^
[INFO] [stderr] 18 | |                         io::Error> {
[INFO] [stderr]    | |__________________________________^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::type_complexity)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#type_complexity
[INFO] [stderr] 
[INFO] [stderr] error: handle read amount returned or use `Read::read_exact` instead
[INFO] [stderr]   --> src/load_mnist.rs:26:2
[INFO] [stderr]    |
[INFO] [stderr] 26 |     train_images.read(&mut [0; SKIP_BYTES_TRAINING_IMAGES])?;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[deny(clippy::unused_io_amount)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_io_amount
[INFO] [stderr] 
[INFO] [stderr] error: handle read amount returned or use `Read::read_exact` instead
[INFO] [stderr]   --> src/load_mnist.rs:27:2
[INFO] [stderr]    |
[INFO] [stderr] 27 |     train_labels.read(&mut [0; SKIP_BYTES_TRAINING_LABELS])?;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_io_amount
[INFO] [stderr] 
[INFO] [stderr] error: handle read amount returned or use `Read::read_exact` instead
[INFO] [stderr]   --> src/load_mnist.rs:33:3
[INFO] [stderr]    |
[INFO] [stderr] 33 |         train_images.read(&mut image)?;
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_io_amount
[INFO] [stderr] 
[INFO] [stderr] error: handle read amount returned or use `Read::read_exact` instead
[INFO] [stderr]   --> src/load_mnist.rs:34:3
[INFO] [stderr]    |
[INFO] [stderr] 34 |         train_labels.read(&mut label)?;
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_io_amount
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to f64 may become silently lossy if types change
[INFO] [stderr]   --> src/load_mnist.rs:38:28
[INFO] [stderr]    |
[INFO] [stderr] 38 |                     &image.iter().map(|x| (*x as f64)/255.0).collect::<Vec<_>>()[..]),
[INFO] [stderr]    |                                           ^^^^^^^^^^^ help: try: `f64::from(*x)`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::cast_lossless)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] error: handle read amount returned or use `Read::read_exact` instead
[INFO] [stderr]   --> src/load_mnist.rs:43:3
[INFO] [stderr]    |
[INFO] [stderr] 43 |         train_images.read(&mut image)?;
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_io_amount
[INFO] [stderr] 
[INFO] [stderr] error: handle read amount returned or use `Read::read_exact` instead
[INFO] [stderr]   --> src/load_mnist.rs:44:3
[INFO] [stderr]    |
[INFO] [stderr] 44 |         train_labels.read(&mut label)?;
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_io_amount
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to f64 may become silently lossy if types change
[INFO] [stderr]   --> src/load_mnist.rs:48:28
[INFO] [stderr]    |
[INFO] [stderr] 48 |                     &image.iter().map(|x| (*x as f64)/255.0).collect::<Vec<_>>()[..]),
[INFO] [stderr]    |                                           ^^^^^^^^^^^ help: try: `f64::from(*x)`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]    --> src/lib.rs:104:36
[INFO] [stderr]     |
[INFO] [stderr] 104 |     pub fn evaluate(&self, test_data: &Vec<(DVector<f64>, DVector<f64>)>) {
[INFO] [stderr]     |                                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: change this to: `&[(DVector<f64>, DVector<f64>)]`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::ptr_arg)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr] error: strict comparison of f32 or f64
[INFO] [stderr]    --> src/lib.rs:118:7
[INFO] [stderr]     |
[INFO] [stderr] 118 |             if expected_output[imax] == 1.0 {
[INFO] [stderr]     |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider comparing them within some error: `(expected_output[imax] - 1.0).abs() < error`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[deny(clippy::float_cmp)] on by default
[INFO] [stderr] note: std::f32::EPSILON and std::f64::EPSILON are available.
[INFO] [stderr]    --> src/lib.rs:118:7
[INFO] [stderr]     |
[INFO] [stderr] 118 |             if expected_output[imax] == 1.0 {
[INFO] [stderr]     |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#float_cmp
[INFO] [stderr] 
[INFO] [stderr] warning: an inclusive range would be more readable
[INFO] [stderr]    --> src/lib.rs:157:12
[INFO] [stderr]     |
[INFO] [stderr] 157 |         for l in 2..(n+1) {
[INFO] [stderr]     |                  ^^^^^^^^ help: use: `2..=n`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::range_plus_one)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#range_plus_one
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 7 previous errors
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `neural_net`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "9f2d99a9de1767592c555b6be1ecf437dcb26a8b7a14540cffc3b44abc7c4116"`
[INFO] running `"docker" "rm" "-f" "9f2d99a9de1767592c555b6be1ecf437dcb26a8b7a14540cffc3b44abc7c4116"`
[INFO] [stdout] 9f2d99a9de1767592c555b6be1ecf437dcb26a8b7a14540cffc3b44abc7c4116