[INFO] updating cached repository zackmdavis/Machine_Numeral_Identification_and_Sorting_Task
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/zackmdavis/Machine_Numeral_Identification_and_Sorting_Task
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/zackmdavis/Machine_Numeral_Identification_and_Sorting_Task" "work/ex/clippy-test-run/sources/stable/gh/zackmdavis/Machine_Numeral_Identification_and_Sorting_Task"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable/gh/zackmdavis/Machine_Numeral_Identification_and_Sorting_Task'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/zackmdavis/Machine_Numeral_Identification_and_Sorting_Task" "work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/zackmdavis/Machine_Numeral_Identification_and_Sorting_Task"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/zackmdavis/Machine_Numeral_Identification_and_Sorting_Task'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] a36781151295907c21ced7f21948de7e008d5346
[INFO] sha for GitHub repo zackmdavis/Machine_Numeral_Identification_and_Sorting_Task: a36781151295907c21ced7f21948de7e008d5346
[INFO] validating manifest of zackmdavis/Machine_Numeral_Identification_and_Sorting_Task 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 zackmdavis/Machine_Numeral_Identification_and_Sorting_Task 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 zackmdavis/Machine_Numeral_Identification_and_Sorting_Task
[INFO] finished frobbing zackmdavis/Machine_Numeral_Identification_and_Sorting_Task
[INFO] frobbed toml for zackmdavis/Machine_Numeral_Identification_and_Sorting_Task written to work/ex/clippy-test-run/sources/stable/gh/zackmdavis/Machine_Numeral_Identification_and_Sorting_Task/Cargo.toml
[INFO] started frobbing zackmdavis/Machine_Numeral_Identification_and_Sorting_Task
[INFO] finished frobbing zackmdavis/Machine_Numeral_Identification_and_Sorting_Task
[INFO] frobbed toml for zackmdavis/Machine_Numeral_Identification_and_Sorting_Task written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/zackmdavis/Machine_Numeral_Identification_and_Sorting_Task/Cargo.toml
[INFO] crate zackmdavis/Machine_Numeral_Identification_and_Sorting_Task 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 zackmdavis/Machine_Numeral_Identification_and_Sorting_Task against stable for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-2/stable:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable/gh/zackmdavis/Machine_Numeral_Identification_and_Sorting_Task:/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] 1f2ba6f7502f9b03b067c95157b980db6bee95db04f3189cbd465c41c9bc1e5c
[INFO] running `"docker" "start" "-a" "1f2ba6f7502f9b03b067c95157b980db6bee95db04f3189cbd465c41c9bc1e5c"`
[INFO] [stderr]     Checking num-traits v0.1.41
[INFO] [stderr]    Compiling matrixmultiply v0.1.14
[INFO] [stderr]     Checking rawpointer v0.1.0
[INFO] [stderr]     Checking byteorder v1.2.1
[INFO] [stderr]     Checking rand v0.3.18
[INFO] [stderr]     Checking mnist v0.4.0
[INFO] [stderr]     Checking num-integer v0.1.35
[INFO] [stderr]     Checking num-iter v0.1.34
[INFO] [stderr]     Checking num v0.1.41
[INFO] [stderr]     Checking rulinalg v0.3.7
[INFO] [stderr]     Checking rusty-machine v0.5.4
[INFO] [stderr]     Checking machine_numeral_identification_and_sorting_task v0.0.1 (/opt/crater/workdir)
[INFO] [stderr] warning: literal with an empty format string
[INFO] [stderr]    --> src/main.rs:114:48
[INFO] [stderr]     |
[INFO] [stderr] 114 |     println!("Accuracy: {}/{} = {:.1}%", hits, 1000., f64::from(hits)/1000. * 100.);
[INFO] [stderr]     |                                                ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::print_literal)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#print_literal
[INFO] [stderr] 
[INFO] [stderr] warning: literal with an empty format string
[INFO] [stderr]    --> src/main.rs:114:48
[INFO] [stderr]     |
[INFO] [stderr] 114 |     println!("Accuracy: {}/{} = {:.1}%", hits, 1000., f64::from(hits)/1000. * 100.);
[INFO] [stderr]     |                                                ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::print_literal)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#print_literal
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Test`
[INFO] [stderr]   --> src/main.rs:19:5
[INFO] [stderr]    |
[INFO] [stderr] 19 |     Test
[INFO] [stderr]    |     ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `digit`
[INFO] [stderr]   --> src/main.rs:31:5
[INFO] [stderr]    |
[INFO] [stderr] 31 |     fn digit(&self, set: Set, index: usize) -> Digit {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Test`
[INFO] [stderr]   --> src/main.rs:19:5
[INFO] [stderr]    |
[INFO] [stderr] 19 |     Test
[INFO] [stderr]    |     ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `digit`
[INFO] [stderr]   --> src/main.rs:31:5
[INFO] [stderr]    |
[INFO] [stderr] 31 |     fn digit(&self, set: Set, index: usize) -> Digit {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to f64 may become silently lossy if types change
[INFO] [stderr]   --> src/main.rs:93:130
[INFO] [stderr]    |
[INFO] [stderr] 93 |     let training_data = Matrix::new(training_data_u8.rows(), training_data_u8.cols(), training_data_u8.into_vec().iter().map(|e| *e as f64).collect::<Vec<_>>());
[INFO] [stderr]    |                                                                                                                                  ^^^^^^^^^ help: try: `f64::from(*e)`
[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] warning: casting u8 to f64 may become silently lossy if types change
[INFO] [stderr]   --> src/main.rs:94:74
[INFO] [stderr]    |
[INFO] [stderr] 94 |     let training_targets = training_targets_u8.into_vec().iter().map(|e| *e as f64).collect::<Vec<_>>();
[INFO] [stderr]    |                                                                          ^^^^^^^^^ help: try: `f64::from(*e)`
[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: casting u8 to f64 may become silently lossy if types change
[INFO] [stderr]   --> src/main.rs:96:138
[INFO] [stderr]    |
[INFO] [stderr] 96 |     let validation_data = Matrix::new(validation_data_u8.rows(), validation_data_u8.cols(), validation_data_u8.into_vec().iter().map(|e| *e as f64).collect::<Vec<_>>());
[INFO] [stderr]    |                                                                                                                                          ^^^^^^^^^ help: try: `f64::from(*e)`
[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: casting u8 to f64 may become silently lossy if types change
[INFO] [stderr]   --> src/main.rs:97:78
[INFO] [stderr]    |
[INFO] [stderr] 97 |     let validation_targets = validation_targets_u8.into_vec().iter().map(|e| *e as f64).collect::<Vec<_>>();
[INFO] [stderr]    |                                                                              ^^^^^^^^^ help: try: `f64::from(*e)`
[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] error: strict comparison of f32 or f64
[INFO] [stderr]    --> src/main.rs:110:12
[INFO] [stderr]     |
[INFO] [stderr] 110 |         if digit == predicted {
[INFO] [stderr]     |            ^^^^^^^^^^^^^^^^^^ help: consider comparing them within some error: `(digit - predicted).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/main.rs:110:12
[INFO] [stderr]     |
[INFO] [stderr] 110 |         if digit == predicted {
[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: casting u8 to f64 may become silently lossy if types change
[INFO] [stderr]   --> src/main.rs:93:130
[INFO] [stderr]    |
[INFO] [stderr] 93 |     let training_data = Matrix::new(training_data_u8.rows(), training_data_u8.cols(), training_data_u8.into_vec().iter().map(|e| *e as f64).collect::<Vec<_>>());
[INFO] [stderr]    |                                                                                                                                  ^^^^^^^^^ help: try: `f64::from(*e)`
[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] warning: casting u8 to f64 may become silently lossy if types change
[INFO] [stderr]   --> src/main.rs:94:74
[INFO] [stderr]    |
[INFO] [stderr] 94 |     let training_targets = training_targets_u8.into_vec().iter().map(|e| *e as f64).collect::<Vec<_>>();
[INFO] [stderr]    |                                                                          ^^^^^^^^^ help: try: `f64::from(*e)`
[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: casting u8 to f64 may become silently lossy if types change
[INFO] [stderr]   --> src/main.rs:96:138
[INFO] [stderr]    |
[INFO] [stderr] 96 |     let validation_data = Matrix::new(validation_data_u8.rows(), validation_data_u8.cols(), validation_data_u8.into_vec().iter().map(|e| *e as f64).collect::<Vec<_>>());
[INFO] [stderr]    |                                                                                                                                          ^^^^^^^^^ help: try: `f64::from(*e)`
[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: casting u8 to f64 may become silently lossy if types change
[INFO] [stderr]   --> src/main.rs:97:78
[INFO] [stderr]    |
[INFO] [stderr] 97 |     let validation_targets = validation_targets_u8.into_vec().iter().map(|e| *e as f64).collect::<Vec<_>>();
[INFO] [stderr]    |                                                                              ^^^^^^^^^ help: try: `f64::from(*e)`
[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] error: strict comparison of f32 or f64
[INFO] [stderr]    --> src/main.rs:110:12
[INFO] [stderr]     |
[INFO] [stderr] 110 |         if digit == predicted {
[INFO] [stderr]     |            ^^^^^^^^^^^^^^^^^^ help: consider comparing them within some error: `(digit - predicted).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/main.rs:110:12
[INFO] [stderr]     |
[INFO] [stderr] 110 |         if digit == predicted {
[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] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `machine_numeral_identification_and_sorting_task`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: Could not compile `machine_numeral_identification_and_sorting_task`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "1f2ba6f7502f9b03b067c95157b980db6bee95db04f3189cbd465c41c9bc1e5c"`
[INFO] running `"docker" "rm" "-f" "1f2ba6f7502f9b03b067c95157b980db6bee95db04f3189cbd465c41c9bc1e5c"`
[INFO] [stdout] 1f2ba6f7502f9b03b067c95157b980db6bee95db04f3189cbd465c41c9bc1e5c