[INFO] updating cached repository rainartists/rust_project
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/rainartists/rust_project
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/rainartists/rust_project" "work/ex/clippy-test-run/sources/stable/gh/rainartists/rust_project"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable/gh/rainartists/rust_project'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/rainartists/rust_project" "work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/rainartists/rust_project"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/rainartists/rust_project'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] f16d92651f6b09d8c549813679fb91559fdd4d98
[INFO] sha for GitHub repo rainartists/rust_project: f16d92651f6b09d8c549813679fb91559fdd4d98
[INFO] validating manifest of rainartists/rust_project 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 rainartists/rust_project 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 rainartists/rust_project
[INFO] finished frobbing rainartists/rust_project
[INFO] frobbed toml for rainartists/rust_project written to work/ex/clippy-test-run/sources/stable/gh/rainartists/rust_project/Cargo.toml
[INFO] started frobbing rainartists/rust_project
[INFO] finished frobbing rainartists/rust_project
[INFO] frobbed toml for rainartists/rust_project written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/rainartists/rust_project/Cargo.toml
[INFO] crate rainartists/rust_project 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 rainartists/rust_project against stable+rustflags=-Dclippy::into_iter_on_array for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-0/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/rainartists/rust_project:/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 -Dclippy::into_iter_on_array" "-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] d8f0fc8e0f66abc25ad88fd7d1e197ce0ec47115b1948050dd398d4b519c9e36
[INFO] running `"docker" "start" "-a" "d8f0fc8e0f66abc25ad88fd7d1e197ce0ec47115b1948050dd398d4b519c9e36"`
[INFO] [stderr]     Checking chrono v0.4.1
[INFO] [stderr]     Checking timer v0.2.0
[INFO] [stderr]     Checking rust_project v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: Constants have by default a `'static` lifetime
[INFO] [stderr]   --> src/main.rs:22:17
[INFO] [stderr]    |
[INFO] [stderr] 22 |     const NPC: &'static str = "    \n\r\t(•̀.̫•́)\n\r\
[INFO] [stderr]    |                -^^^^^^^---- help: consider removing `'static`: `&str`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::const_static_lifetime)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#const_static_lifetime
[INFO] [stderr] 
[INFO] [stderr] warning: Constants have by default a `'static` lifetime
[INFO] [stderr]   --> src/main.rs:25:18
[INFO] [stderr]    |
[INFO] [stderr] 25 |     const WELCOME: &'static str = "╔═══════════════════════╗\n\r\
[INFO] [stderr]    |                    -^^^^^^^---- help: consider removing `'static`: `&str`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#const_static_lifetime
[INFO] [stderr] 
[INFO] [stderr] warning: Constants have by default a `'static` lifetime
[INFO] [stderr]   --> src/main.rs:29:17
[INFO] [stderr]    |
[INFO] [stderr] 29 |       const MENU: &'static str = "\n\r\
[INFO] [stderr]    |                   -^^^^^^^---- help: consider removing `'static`: `&str`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#const_static_lifetime
[INFO] [stderr] 
[INFO] [stderr] warning: this `else { if .. }` block can be collapsed
[INFO] [stderr]    --> src/main.rs:234:10
[INFO] [stderr]     |
[INFO] [stderr] 234 |         }else {
[INFO] [stderr]     |  _____________^
[INFO] [stderr] 235 | |             if temp_row[reduce_col] != 0 as f32 {
[INFO] [stderr] 236 | |                 //divide by oneself, there's only two solution: 1 or 0
[INFO] [stderr] 237 | |               curr_row = divide_vec(&row, temp_row[reduce_col]);
[INFO] [stderr] ...   |
[INFO] [stderr] 243 | |             }
[INFO] [stderr] 244 | |           }
[INFO] [stderr]     | |___________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::collapsible_if)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#collapsible_if
[INFO] [stderr] help: try
[INFO] [stderr]     |
[INFO] [stderr] 234 |       }else if temp_row[reduce_col] != 0 as f32 {
[INFO] [stderr] 235 |               //divide by oneself, there's only two solution: 1 or 0
[INFO] [stderr] 236 |             curr_row = divide_vec(&row, temp_row[reduce_col]);
[INFO] [stderr] 237 |             pivot_row = curr_row.clone();
[INFO] [stderr] 238 |               new_vec.insert(0, curr_row);
[INFO] [stderr] 239 |     
[INFO] [stderr]   ...
[INFO] [stderr] 
[INFO] [stderr] warning: this `else { if .. }` block can be collapsed
[INFO] [stderr]    --> src/main.rs:223:12
[INFO] [stderr]     |
[INFO] [stderr] 223 |           }else {
[INFO] [stderr]     |  _______________^
[INFO] [stderr] 224 | |           if temp_row[reduce_col] != 0 as f32 {
[INFO] [stderr] 225 | |                 //divide by oneself, there's only two solution: 1 or 0
[INFO] [stderr] 226 | |               curr_row = divide_vec(&row, temp_row[reduce_col]);
[INFO] [stderr] ...   |
[INFO] [stderr] 232 | |               }
[INFO] [stderr] 233 | |         }
[INFO] [stderr]     | |_________^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#collapsible_if
[INFO] [stderr] help: try
[INFO] [stderr]     |
[INFO] [stderr] 223 |         }else if temp_row[reduce_col] != 0 as f32 {
[INFO] [stderr] 224 |                 //divide by oneself, there's only two solution: 1 or 0
[INFO] [stderr] 225 |               curr_row = divide_vec(&row, temp_row[reduce_col]);
[INFO] [stderr] 226 |               pivot_row = curr_row.clone();
[INFO] [stderr] 227 |                 new_vec.push(curr_row);
[INFO] [stderr] 228 |       
[INFO] [stderr]   ...
[INFO] [stderr] 
[INFO] [stderr] warning: Constants have by default a `'static` lifetime
[INFO] [stderr]   --> src/main.rs:22:17
[INFO] [stderr]    |
[INFO] [stderr] 22 |     const NPC: &'static str = "    \n\r\t(•̀.̫•́)\n\r\
[INFO] [stderr]    |                -^^^^^^^---- help: consider removing `'static`: `&str`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::const_static_lifetime)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#const_static_lifetime
[INFO] [stderr] 
[INFO] [stderr] warning: Constants have by default a `'static` lifetime
[INFO] [stderr]   --> src/main.rs:25:18
[INFO] [stderr]    |
[INFO] [stderr] 25 |     const WELCOME: &'static str = "╔═══════════════════════╗\n\r\
[INFO] [stderr]    |                    -^^^^^^^---- help: consider removing `'static`: `&str`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#const_static_lifetime
[INFO] [stderr] 
[INFO] [stderr] warning: Constants have by default a `'static` lifetime
[INFO] [stderr]   --> src/main.rs:29:17
[INFO] [stderr]    |
[INFO] [stderr] 29 |       const MENU: &'static str = "\n\r\
[INFO] [stderr]    |                   -^^^^^^^---- help: consider removing `'static`: `&str`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#const_static_lifetime
[INFO] [stderr] 
[INFO] [stderr] warning: this `else { if .. }` block can be collapsed
[INFO] [stderr]    --> src/main.rs:234:10
[INFO] [stderr]     |
[INFO] [stderr] 234 |         }else {
[INFO] [stderr]     |  _____________^
[INFO] [stderr] 235 | |             if temp_row[reduce_col] != 0 as f32 {
[INFO] [stderr] 236 | |                 //divide by oneself, there's only two solution: 1 or 0
[INFO] [stderr] 237 | |               curr_row = divide_vec(&row, temp_row[reduce_col]);
[INFO] [stderr] ...   |
[INFO] [stderr] 243 | |             }
[INFO] [stderr] 244 | |           }
[INFO] [stderr]     | |___________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::collapsible_if)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#collapsible_if
[INFO] [stderr] help: try
[INFO] [stderr]     |
[INFO] [stderr] 234 |       }else if temp_row[reduce_col] != 0 as f32 {
[INFO] [stderr] 235 |               //divide by oneself, there's only two solution: 1 or 0
[INFO] [stderr] 236 |             curr_row = divide_vec(&row, temp_row[reduce_col]);
[INFO] [stderr] 237 |             pivot_row = curr_row.clone();
[INFO] [stderr] 238 |               new_vec.insert(0, curr_row);
[INFO] [stderr] 239 |     
[INFO] [stderr]   ...
[INFO] [stderr] 
[INFO] [stderr] warning: this `else { if .. }` block can be collapsed
[INFO] [stderr]    --> src/main.rs:223:12
[INFO] [stderr]     |
[INFO] [stderr] 223 |           }else {
[INFO] [stderr]     |  _______________^
[INFO] [stderr] 224 | |           if temp_row[reduce_col] != 0 as f32 {
[INFO] [stderr] 225 | |                 //divide by oneself, there's only two solution: 1 or 0
[INFO] [stderr] 226 | |               curr_row = divide_vec(&row, temp_row[reduce_col]);
[INFO] [stderr] ...   |
[INFO] [stderr] 232 | |               }
[INFO] [stderr] 233 | |         }
[INFO] [stderr]     | |_________^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#collapsible_if
[INFO] [stderr] help: try
[INFO] [stderr]     |
[INFO] [stderr] 223 |         }else if temp_row[reduce_col] != 0 as f32 {
[INFO] [stderr] 224 |                 //divide by oneself, there's only two solution: 1 or 0
[INFO] [stderr] 225 |               curr_row = divide_vec(&row, temp_row[reduce_col]);
[INFO] [stderr] 226 |               pivot_row = curr_row.clone();
[INFO] [stderr] 227 |                 new_vec.push(curr_row);
[INFO] [stderr] 228 |       
[INFO] [stderr]   ...
[INFO] [stderr] 
[INFO] [stderr] warning: called `ok().expect()` on a Result value. You can call `expect` directly on the `Result`
[INFO] [stderr]    --> src/main.rs:123:2
[INFO] [stderr]     |
[INFO] [stderr] 123 |     reader.read_line(&mut buffer).ok().expect("read error");
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::ok_expect)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ok_expect
[INFO] [stderr] 
[INFO] [stderr] warning: called `ok().expect()` on a Result value. You can call `expect` directly on the `Result`
[INFO] [stderr]    --> src/main.rs:128:2
[INFO] [stderr]     |
[INFO] [stderr] 128 |     reader.read_line(&mut buffer).ok().expect("read error");
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ok_expect
[INFO] [stderr] 
[INFO] [stderr] warning: called `ok().expect()` on a Result value. You can call `expect` directly on the `Result`
[INFO] [stderr]    --> src/main.rs:138:2
[INFO] [stderr]     |
[INFO] [stderr] 138 |     reader.read_line(&mut buffer).ok().expect("read error");
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ok_expect
[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/main.rs:176:19
[INFO] [stderr]     |
[INFO] [stderr] 176 | fn divide_vec(vec:&Vec<f32>, num:f32) -> Vec<f32>{
[INFO] [stderr]     |                   ^^^^^^^^^ help: change this to: `&[f32]`
[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] warning: the loop variable `i` is only used to index `vec`.
[INFO] [stderr]    --> src/main.rs:179:11
[INFO] [stderr]     |
[INFO] [stderr] 179 |     for i in 0..vec.len() {
[INFO] [stderr]     |              ^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::needless_range_loop)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_range_loop
[INFO] [stderr] help: consider using an iterator
[INFO] [stderr]     |
[INFO] [stderr] 179 |     for <item> in &vec {
[INFO] [stderr]     |         ^^^^^^    ^^^^
[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/main.rs:184:21
[INFO] [stderr]     |
[INFO] [stderr] 184 | fn multiply_vec(vec:&Vec<f32>, num:f32) -> Vec<f32>{
[INFO] [stderr]     |                     ^^^^^^^^^ help: change this to: `&[f32]`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr] warning: the loop variable `i` is only used to index `vec`.
[INFO] [stderr]    --> src/main.rs:187:11
[INFO] [stderr]     |
[INFO] [stderr] 187 |     for i in 0..vec.len() {
[INFO] [stderr]     |              ^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_range_loop
[INFO] [stderr] help: consider using an iterator
[INFO] [stderr]     |
[INFO] [stderr] 187 |     for <item> in &vec {
[INFO] [stderr]     |         ^^^^^^    ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: the loop variable `i` is only used to index `vec`.
[INFO] [stderr]    --> src/main.rs:196:12
[INFO] [stderr]     |
[INFO] [stderr] 196 |   for i in 0..reduce_col {
[INFO] [stderr]     |            ^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_range_loop
[INFO] [stderr] help: consider using an iterator
[INFO] [stderr]     |
[INFO] [stderr] 196 |   for <item> in vec.iter().take(reduce_col) {
[INFO] [stderr]     |       ^^^^^^    ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: strict comparison of f32 or f64
[INFO] [stderr]    --> src/main.rs:197:8
[INFO] [stderr]     |
[INFO] [stderr] 197 |     if vec[i] == 1 as f32{
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^^^^ help: consider comparing them within some error: `(vec[i] - 1 as f32).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:197:8
[INFO] [stderr]     |
[INFO] [stderr] 197 |     if vec[i] == 1 as f32{
[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: strict comparison of f32 or f64
[INFO] [stderr]    --> src/main.rs:224:11
[INFO] [stderr]     |
[INFO] [stderr] 224 |           if temp_row[reduce_col] != 0 as f32 {
[INFO] [stderr]     |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider comparing them within some error: `(temp_row[reduce_col] - 0 as f32).abs() < error`
[INFO] [stderr]     |
[INFO] [stderr] note: std::f32::EPSILON and std::f64::EPSILON are available.
[INFO] [stderr]    --> src/main.rs:224:11
[INFO] [stderr]     |
[INFO] [stderr] 224 |           if temp_row[reduce_col] != 0 as f32 {
[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: strict comparison of f32 or f64
[INFO] [stderr]    --> src/main.rs:235:10
[INFO] [stderr]     |
[INFO] [stderr] 235 |             if temp_row[reduce_col] != 0 as f32 {
[INFO] [stderr]     |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider comparing them within some error: `(temp_row[reduce_col] - 0 as f32).abs() < error`
[INFO] [stderr]     |
[INFO] [stderr] note: std::f32::EPSILON and std::f64::EPSILON are available.
[INFO] [stderr]    --> src/main.rs:235:10
[INFO] [stderr]     |
[INFO] [stderr] 235 |             if temp_row[reduce_col] != 0 as f32 {
[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: strict comparison of f32 or f64
[INFO] [stderr]    --> src/main.rs:253:7
[INFO] [stderr]     |
[INFO] [stderr] 253 |       if temp_row[reduce_col] != 0 as f32 && temp_row != pivot_row{
[INFO] [stderr]     |          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider comparing them within some error: `(temp_row[reduce_col] - 0 as f32).abs() < error`
[INFO] [stderr]     |
[INFO] [stderr] note: std::f32::EPSILON and std::f64::EPSILON are available.
[INFO] [stderr]    --> src/main.rs:253:7
[INFO] [stderr]     |
[INFO] [stderr] 253 |       if temp_row[reduce_col] != 0 as f32 && temp_row != pivot_row{
[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 4 previous errors
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `rust_project`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] warning: called `ok().expect()` on a Result value. You can call `expect` directly on the `Result`
[INFO] [stderr]    --> src/main.rs:123:2
[INFO] [stderr]     |
[INFO] [stderr] 123 |     reader.read_line(&mut buffer).ok().expect("read error");
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::ok_expect)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ok_expect
[INFO] [stderr] 
[INFO] [stderr] warning: called `ok().expect()` on a Result value. You can call `expect` directly on the `Result`
[INFO] [stderr]    --> src/main.rs:128:2
[INFO] [stderr]     |
[INFO] [stderr] 128 |     reader.read_line(&mut buffer).ok().expect("read error");
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ok_expect
[INFO] [stderr] 
[INFO] [stderr] warning: called `ok().expect()` on a Result value. You can call `expect` directly on the `Result`
[INFO] [stderr]    --> src/main.rs:138:2
[INFO] [stderr]     |
[INFO] [stderr] 138 |     reader.read_line(&mut buffer).ok().expect("read error");
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ok_expect
[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/main.rs:176:19
[INFO] [stderr]     |
[INFO] [stderr] 176 | fn divide_vec(vec:&Vec<f32>, num:f32) -> Vec<f32>{
[INFO] [stderr]     |                   ^^^^^^^^^ help: change this to: `&[f32]`
[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] warning: the loop variable `i` is only used to index `vec`.
[INFO] [stderr]    --> src/main.rs:179:11
[INFO] [stderr]     |
[INFO] [stderr] 179 |     for i in 0..vec.len() {
[INFO] [stderr]     |              ^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::needless_range_loop)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_range_loop
[INFO] [stderr] help: consider using an iterator
[INFO] [stderr]     |
[INFO] [stderr] 179 |     for <item> in &vec {
[INFO] [stderr]     |         ^^^^^^    ^^^^
[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/main.rs:184:21
[INFO] [stderr]     |
[INFO] [stderr] 184 | fn multiply_vec(vec:&Vec<f32>, num:f32) -> Vec<f32>{
[INFO] [stderr]     |                     ^^^^^^^^^ help: change this to: `&[f32]`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr] warning: the loop variable `i` is only used to index `vec`.
[INFO] [stderr]    --> src/main.rs:187:11
[INFO] [stderr]     |
[INFO] [stderr] 187 |     for i in 0..vec.len() {
[INFO] [stderr]     |              ^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_range_loop
[INFO] [stderr] help: consider using an iterator
[INFO] [stderr]     |
[INFO] [stderr] 187 |     for <item> in &vec {
[INFO] [stderr]     |         ^^^^^^    ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: the loop variable `i` is only used to index `vec`.
[INFO] [stderr]    --> src/main.rs:196:12
[INFO] [stderr]     |
[INFO] [stderr] 196 |   for i in 0..reduce_col {
[INFO] [stderr]     |            ^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_range_loop
[INFO] [stderr] help: consider using an iterator
[INFO] [stderr]     |
[INFO] [stderr] 196 |   for <item> in vec.iter().take(reduce_col) {
[INFO] [stderr]     |       ^^^^^^    ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: strict comparison of f32 or f64
[INFO] [stderr]    --> src/main.rs:197:8
[INFO] [stderr]     |
[INFO] [stderr] 197 |     if vec[i] == 1 as f32{
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^^^^ help: consider comparing them within some error: `(vec[i] - 1 as f32).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:197:8
[INFO] [stderr]     |
[INFO] [stderr] 197 |     if vec[i] == 1 as f32{
[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: strict comparison of f32 or f64
[INFO] [stderr]    --> src/main.rs:224:11
[INFO] [stderr]     |
[INFO] [stderr] 224 |           if temp_row[reduce_col] != 0 as f32 {
[INFO] [stderr]     |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider comparing them within some error: `(temp_row[reduce_col] - 0 as f32).abs() < error`
[INFO] [stderr]     |
[INFO] [stderr] note: std::f32::EPSILON and std::f64::EPSILON are available.
[INFO] [stderr]    --> src/main.rs:224:11
[INFO] [stderr]     |
[INFO] [stderr] 224 |           if temp_row[reduce_col] != 0 as f32 {
[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: strict comparison of f32 or f64
[INFO] [stderr]    --> src/main.rs:235:10
[INFO] [stderr]     |
[INFO] [stderr] 235 |             if temp_row[reduce_col] != 0 as f32 {
[INFO] [stderr]     |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider comparing them within some error: `(temp_row[reduce_col] - 0 as f32).abs() < error`
[INFO] [stderr]     |
[INFO] [stderr] note: std::f32::EPSILON and std::f64::EPSILON are available.
[INFO] [stderr]    --> src/main.rs:235:10
[INFO] [stderr]     |
[INFO] [stderr] 235 |             if temp_row[reduce_col] != 0 as f32 {
[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: strict comparison of f32 or f64
[INFO] [stderr]    --> src/main.rs:253:7
[INFO] [stderr]     |
[INFO] [stderr] 253 |       if temp_row[reduce_col] != 0 as f32 && temp_row != pivot_row{
[INFO] [stderr]     |          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider comparing them within some error: `(temp_row[reduce_col] - 0 as f32).abs() < error`
[INFO] [stderr]     |
[INFO] [stderr] note: std::f32::EPSILON and std::f64::EPSILON are available.
[INFO] [stderr]    --> src/main.rs:253:7
[INFO] [stderr]     |
[INFO] [stderr] 253 |       if temp_row[reduce_col] != 0 as f32 && temp_row != pivot_row{
[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 4 previous errors
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `rust_project`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "d8f0fc8e0f66abc25ad88fd7d1e197ce0ec47115b1948050dd398d4b519c9e36"`
[INFO] running `"docker" "rm" "-f" "d8f0fc8e0f66abc25ad88fd7d1e197ce0ec47115b1948050dd398d4b519c9e36"`
[INFO] [stdout] d8f0fc8e0f66abc25ad88fd7d1e197ce0ec47115b1948050dd398d4b519c9e36