[INFO] crate gorrosion 0.1.2 is already in cache
[INFO] extracting crate gorrosion 0.1.2 into work/ex/clippy-test-run/sources/stable/reg/gorrosion/0.1.2
[INFO] extracting crate gorrosion 0.1.2 into work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/gorrosion/0.1.2
[INFO] validating manifest of gorrosion-0.1.2 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 gorrosion-0.1.2 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 gorrosion-0.1.2
[INFO] finished frobbing gorrosion-0.1.2
[INFO] frobbed toml for gorrosion-0.1.2 written to work/ex/clippy-test-run/sources/stable/reg/gorrosion/0.1.2/Cargo.toml
[INFO] started frobbing gorrosion-0.1.2
[INFO] finished frobbing gorrosion-0.1.2
[INFO] frobbed toml for gorrosion-0.1.2 written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/gorrosion/0.1.2/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[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 gorrosion-0.1.2 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-6/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/reg/gorrosion/0.1.2:/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] c364ce25ccc95009faa1a981ff177706f2e5081449e1ae7661b1021c6f79b5d3
[INFO] running `"docker" "start" "-a" "c364ce25ccc95009faa1a981ff177706f2e5081449e1ae7661b1021c6f79b5d3"`
[INFO] [stderr]     Checking gorrosion v0.1.2 (/opt/crater/workdir)
[INFO] [stderr] warning: returning the result of a let binding from a block. Consider returning the expression directly.
[INFO] [stderr]   --> src/core/game.rs:47:4
[INFO] [stderr]    |
[INFO] [stderr] 47 |             new_connections
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::let_and_return)] on by default
[INFO] [stderr] note: this expression can be directly returned
[INFO] [stderr]   --> src/core/game.rs:46:26
[INFO] [stderr]    |
[INFO] [stderr] 46 |             let new_connections = conn * adj * conn;
[INFO] [stderr]    |                                   ^^^^^^^^^^^^^^^^^
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#let_and_return
[INFO] [stderr] 
[INFO] [stderr] warning: returning the result of a let binding from a block. Consider returning the expression directly.
[INFO] [stderr]   --> src/core/game.rs:47:4
[INFO] [stderr]    |
[INFO] [stderr] 47 |             new_connections
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::let_and_return)] on by default
[INFO] [stderr] note: this expression can be directly returned
[INFO] [stderr]   --> src/core/game.rs:46:26
[INFO] [stderr]    |
[INFO] [stderr] 46 |             let new_connections = conn * adj * conn;
[INFO] [stderr]    |                                   ^^^^^^^^^^^^^^^^^
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#let_and_return
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `place_stone`
[INFO] [stderr]   --> src/core/game.rs:38:2
[INFO] [stderr]    |
[INFO] [stderr] 38 |     fn place_stone(&mut self, i: <T::I as Indexer>::Index) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `survivors`
[INFO] [stderr]   --> src/core/game.rs:51:2
[INFO] [stderr]    |
[INFO] [stderr] 51 |     fn survivors(&self, free: &BoolVec<T::I>) -> BoolVec<T::I> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `kill`
[INFO] [stderr]   --> src/core/game.rs:57:2
[INFO] [stderr]    |
[INFO] [stderr] 57 |     fn kill(&mut self, zombies: &BoolVec<T::I>) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `kill_dead`
[INFO] [stderr]   --> src/core/game.rs:67:2
[INFO] [stderr]    |
[INFO] [stderr] 67 |     fn kill_dead(&mut self, liberties: &BoolVec<T::I>) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Black`
[INFO] [stderr]   --> src/core/game.rs:75:2
[INFO] [stderr]    |
[INFO] [stderr] 75 |     Black,
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `White`
[INFO] [stderr]   --> src/core/game.rs:76:2
[INFO] [stderr]    |
[INFO] [stderr] 76 |     White,
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `other`
[INFO] [stderr]   --> src/core/game.rs:80:2
[INFO] [stderr]    |
[INFO] [stderr] 80 |     fn other(&self) -> Color {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `free`
[INFO] [stderr]    --> src/core/game.rs:115:2
[INFO] [stderr]     |
[INFO] [stderr] 115 |     fn free(&self) -> BoolVec<T::I> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `kill_dead`
[INFO] [stderr]    --> src/core/game.rs:121:2
[INFO] [stderr]     |
[INFO] [stderr] 121 |     fn kill_dead(&mut self, color: Color) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `player_state`
[INFO] [stderr]    --> src/core/game.rs:126:2
[INFO] [stderr]     |
[INFO] [stderr] 126 |       fn player_state(
[INFO] [stderr]     |  _____^
[INFO] [stderr] 127 | |         &mut self,
[INFO] [stderr] 128 | |         color: Color,
[INFO] [stderr] 129 | |     ) -> &mut PlayerState<'board, T> {
[INFO] [stderr] ...   |
[INFO] [stderr] 133 | |         }
[INFO] [stderr] 134 | |     }
[INFO] [stderr]     | |_____^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `place_stone`
[INFO] [stderr]    --> src/core/game.rs:136:2
[INFO] [stderr]     |
[INFO] [stderr] 136 |     fn place_stone(&mut self, i: <T::I as Indexer>::Index, color: Color) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Pass`
[INFO] [stderr]    --> src/core/game.rs:166:2
[INFO] [stderr]     |
[INFO] [stderr] 166 |     Pass,
[INFO] [stderr]     |     ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Resign`
[INFO] [stderr]    --> src/core/game.rs:167:2
[INFO] [stderr]     |
[INFO] [stderr] 167 |     Resign,
[INFO] [stderr]     |     ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Place`
[INFO] [stderr]    --> src/core/game.rs:168:2
[INFO] [stderr]     |
[INFO] [stderr] 168 |     Place(Index),
[INFO] [stderr]     |     ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `LocalRules`
[INFO] [stderr]    --> src/core/game.rs:177:1
[INFO] [stderr]     |
[INFO] [stderr] 177 | struct LocalRules {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Rules`
[INFO] [stderr]    --> src/core/game.rs:182:1
[INFO] [stderr]     |
[INFO] [stderr] 182 | struct Rules {
[INFO] [stderr]     | ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `GameNode`
[INFO] [stderr]    --> src/core/game.rs:190:1
[INFO] [stderr]     |
[INFO] [stderr] 190 | struct GameNode<'a, 'board: 'a, T: 'board + Board> {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: this argument is passed by reference, but would be more efficient if passed by value
[INFO] [stderr]   --> src/core/game.rs:80:11
[INFO] [stderr]    |
[INFO] [stderr] 80 |     fn other(&self) -> Color {
[INFO] [stderr]    |              ^^^^^ help: consider passing by value instead: `self`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::trivially_copy_pass_by_ref)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#trivially_copy_pass_by_ref
[INFO] [stderr] 
[INFO] [stderr] warning: this boolean expression can be simplified
[INFO] [stderr]   --> src/core/rules.rs:14:3
[INFO] [stderr]    |
[INFO] [stderr] 14 |         !self.outcome(game).is_none()
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `self.outcome(game).is_some()`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::nonminimal_bool)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#nonminimal_bool
[INFO] [stderr] 
[INFO] [stderr] warning: this let-binding has unit value. Consider omitting `let columns =`
[INFO] [stderr]   --> src/core/util/bool_mat.rs:98:3
[INFO] [stderr]    |
[INFO] [stderr] 98 |         let columns = ();
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::let_unit_value)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#let_unit_value
[INFO] [stderr] 
[INFO] [stderr] error: Suspicious use of binary operator in `Mul` impl
[INFO] [stderr]    --> src/core/util/bool_mat.rs:151:27
[INFO] [stderr]     |
[INFO] [stderr] 151 |                 self.contents[(j, k)] & other.contents[(k, l)]
[INFO] [stderr]     |                                       ^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[deny(clippy::suspicious_arithmetic_impl)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#suspicious_arithmetic_impl
[INFO] [stderr] 
[INFO] [stderr] warning: the loop variable `i` is only used to index `falses`.
[INFO] [stderr]    --> src/core/util/bool_vec.rs:230:12
[INFO] [stderr]     |
[INFO] [stderr] 230 |         for i in 0..17 {
[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] 230 |         for <item> in falses.iter().take(17) {
[INFO] [stderr]     |             ^^^^^^    ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: the loop variable `i` is only used to index `trues`.
[INFO] [stderr]    --> src/core/util/bool_vec.rs:235:12
[INFO] [stderr]     |
[INFO] [stderr] 235 |         for i in 0..23 {
[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] 235 |         for <item> in trues.iter().take(23) {
[INFO] [stderr]     |             ^^^^^^    ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `gorrosion`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] warning: method is never used: `place_stone`
[INFO] [stderr]   --> src/core/game.rs:38:2
[INFO] [stderr]    |
[INFO] [stderr] 38 |     fn place_stone(&mut self, i: <T::I as Indexer>::Index) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `survivors`
[INFO] [stderr]   --> src/core/game.rs:51:2
[INFO] [stderr]    |
[INFO] [stderr] 51 |     fn survivors(&self, free: &BoolVec<T::I>) -> BoolVec<T::I> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `kill`
[INFO] [stderr]   --> src/core/game.rs:57:2
[INFO] [stderr]    |
[INFO] [stderr] 57 |     fn kill(&mut self, zombies: &BoolVec<T::I>) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `kill_dead`
[INFO] [stderr]   --> src/core/game.rs:67:2
[INFO] [stderr]    |
[INFO] [stderr] 67 |     fn kill_dead(&mut self, liberties: &BoolVec<T::I>) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Black`
[INFO] [stderr]   --> src/core/game.rs:75:2
[INFO] [stderr]    |
[INFO] [stderr] 75 |     Black,
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `White`
[INFO] [stderr]   --> src/core/game.rs:76:2
[INFO] [stderr]    |
[INFO] [stderr] 76 |     White,
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `other`
[INFO] [stderr]   --> src/core/game.rs:80:2
[INFO] [stderr]    |
[INFO] [stderr] 80 |     fn other(&self) -> Color {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `free`
[INFO] [stderr]    --> src/core/game.rs:115:2
[INFO] [stderr]     |
[INFO] [stderr] 115 |     fn free(&self) -> BoolVec<T::I> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `kill_dead`
[INFO] [stderr]    --> src/core/game.rs:121:2
[INFO] [stderr]     |
[INFO] [stderr] 121 |     fn kill_dead(&mut self, color: Color) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `player_state`
[INFO] [stderr]    --> src/core/game.rs:126:2
[INFO] [stderr]     |
[INFO] [stderr] 126 |       fn player_state(
[INFO] [stderr]     |  _____^
[INFO] [stderr] 127 | |         &mut self,
[INFO] [stderr] 128 | |         color: Color,
[INFO] [stderr] 129 | |     ) -> &mut PlayerState<'board, T> {
[INFO] [stderr] ...   |
[INFO] [stderr] 133 | |         }
[INFO] [stderr] 134 | |     }
[INFO] [stderr]     | |_____^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `place_stone`
[INFO] [stderr]    --> src/core/game.rs:136:2
[INFO] [stderr]     |
[INFO] [stderr] 136 |     fn place_stone(&mut self, i: <T::I as Indexer>::Index, color: Color) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Pass`
[INFO] [stderr]    --> src/core/game.rs:166:2
[INFO] [stderr]     |
[INFO] [stderr] 166 |     Pass,
[INFO] [stderr]     |     ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Resign`
[INFO] [stderr]    --> src/core/game.rs:167:2
[INFO] [stderr]     |
[INFO] [stderr] 167 |     Resign,
[INFO] [stderr]     |     ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Place`
[INFO] [stderr]    --> src/core/game.rs:168:2
[INFO] [stderr]     |
[INFO] [stderr] 168 |     Place(Index),
[INFO] [stderr]     |     ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `LocalRules`
[INFO] [stderr]    --> src/core/game.rs:177:1
[INFO] [stderr]     |
[INFO] [stderr] 177 | struct LocalRules {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Rules`
[INFO] [stderr]    --> src/core/game.rs:182:1
[INFO] [stderr]     |
[INFO] [stderr] 182 | struct Rules {
[INFO] [stderr]     | ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `GameNode`
[INFO] [stderr]    --> src/core/game.rs:190:1
[INFO] [stderr]     |
[INFO] [stderr] 190 | struct GameNode<'a, 'board: 'a, T: 'board + Board> {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: this argument is passed by reference, but would be more efficient if passed by value
[INFO] [stderr]   --> src/core/game.rs:80:11
[INFO] [stderr]    |
[INFO] [stderr] 80 |     fn other(&self) -> Color {
[INFO] [stderr]    |              ^^^^^ help: consider passing by value instead: `self`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::trivially_copy_pass_by_ref)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#trivially_copy_pass_by_ref
[INFO] [stderr] 
[INFO] [stderr] warning: this boolean expression can be simplified
[INFO] [stderr]   --> src/core/rules.rs:14:3
[INFO] [stderr]    |
[INFO] [stderr] 14 |         !self.outcome(game).is_none()
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `self.outcome(game).is_some()`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::nonminimal_bool)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#nonminimal_bool
[INFO] [stderr] 
[INFO] [stderr] warning: this let-binding has unit value. Consider omitting `let columns =`
[INFO] [stderr]   --> src/core/util/bool_mat.rs:98:3
[INFO] [stderr]    |
[INFO] [stderr] 98 |         let columns = ();
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::let_unit_value)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#let_unit_value
[INFO] [stderr] 
[INFO] [stderr] error: Suspicious use of binary operator in `Mul` impl
[INFO] [stderr]    --> src/core/util/bool_mat.rs:151:27
[INFO] [stderr]     |
[INFO] [stderr] 151 |                 self.contents[(j, k)] & other.contents[(k, l)]
[INFO] [stderr]     |                                       ^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[deny(clippy::suspicious_arithmetic_impl)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#suspicious_arithmetic_impl
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `gorrosion`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "c364ce25ccc95009faa1a981ff177706f2e5081449e1ae7661b1021c6f79b5d3"`
[INFO] running `"docker" "rm" "-f" "c364ce25ccc95009faa1a981ff177706f2e5081449e1ae7661b1021c6f79b5d3"`
[INFO] [stdout] c364ce25ccc95009faa1a981ff177706f2e5081449e1ae7661b1021c6f79b5d3