[INFO] updating cached repository SpycWolf/rust-life_game
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/SpycWolf/rust-life_game
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/SpycWolf/rust-life_game" "work/ex/clippy-test-run/sources/stable/gh/SpycWolf/rust-life_game"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable/gh/SpycWolf/rust-life_game'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/SpycWolf/rust-life_game" "work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/SpycWolf/rust-life_game"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/SpycWolf/rust-life_game'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 25bcb2456a1f07ee7e1a515468382bb2015f51f8
[INFO] sha for GitHub repo SpycWolf/rust-life_game: 25bcb2456a1f07ee7e1a515468382bb2015f51f8
[INFO] validating manifest of SpycWolf/rust-life_game 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 SpycWolf/rust-life_game 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 SpycWolf/rust-life_game
[INFO] finished frobbing SpycWolf/rust-life_game
[INFO] frobbed toml for SpycWolf/rust-life_game written to work/ex/clippy-test-run/sources/stable/gh/SpycWolf/rust-life_game/Cargo.toml
[INFO] started frobbing SpycWolf/rust-life_game
[INFO] finished frobbing SpycWolf/rust-life_game
[INFO] frobbed toml for SpycWolf/rust-life_game written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/SpycWolf/rust-life_game/Cargo.toml
[INFO] crate SpycWolf/rust-life_game 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 SpycWolf/rust-life_game 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-5/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/SpycWolf/rust-life_game:/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] 11c53a7f3af40b77b76a01826dc41b6548bdb6d0a0713cc4e4caa4730e48f582
[INFO] running `"docker" "start" "-a" "11c53a7f3af40b77b76a01826dc41b6548bdb6d0a0713cc4e4caa4730e48f582"`
[INFO] [stderr]     Checking rustlife v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/main.rs:22:13
[INFO] [stderr]    |
[INFO] [stderr] 22 |             data: data
[INFO] [stderr]    |             ^^^^^^^^^^ help: replace it with: `data`
[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: using `println!("")`
[INFO] [stderr]   --> src/main.rs:35:17
[INFO] [stderr]    |
[INFO] [stderr] 35 |                 println!("");
[INFO] [stderr]    |                 ^^^^^^^^^^^^ help: replace it with: `println!()`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::println_empty_string)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#println_empty_string
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/main.rs:22:13
[INFO] [stderr]    |
[INFO] [stderr] 22 |             data: data
[INFO] [stderr]    |             ^^^^^^^^^^ help: replace it with: `data`
[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: using `println!("")`
[INFO] [stderr]   --> src/main.rs:35:17
[INFO] [stderr]    |
[INFO] [stderr] 35 |                 println!("");
[INFO] [stderr]    |                 ^^^^^^^^^^^^ help: replace it with: `println!()`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::println_empty_string)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#println_empty_string
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `for` head expression
[INFO] [stderr]   --> src/main.rs:16:18
[INFO] [stderr]    |
[INFO] [stderr] 16 |         for _ in (0..(w*h)) {
[INFO] [stderr]    |                  ^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_parens)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `for` head expression
[INFO] [stderr]   --> src/main.rs:27:20
[INFO] [stderr]    |
[INFO] [stderr] 27 |         for idx in (0..(self.width * self.height)) {
[INFO] [stderr]    |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/main.rs:46:9
[INFO] [stderr]    |
[INFO] [stderr] 46 |         return self.data[idx as usize];
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `self.data[idx as usize]`
[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/main.rs:64:17
[INFO] [stderr]    |
[INFO] [stderr] 64 |                 return 1;
[INFO] [stderr]    |                 ^^^^^^^^^ help: remove `return` as shown: `1`
[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/main.rs:66:17
[INFO] [stderr]    |
[INFO] [stderr] 66 |                 return 0;
[INFO] [stderr]    |                 ^^^^^^^^^ help: remove `return` as shown: `0`
[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/main.rs:70:17
[INFO] [stderr]    |
[INFO] [stderr] 70 |                 return 1;
[INFO] [stderr]    |                 ^^^^^^^^^ help: remove `return` as shown: `1`
[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/main.rs:72:17
[INFO] [stderr]    |
[INFO] [stderr] 72 |                 return 0;
[INFO] [stderr]    |                 ^^^^^^^^^ help: remove `return` as shown: `0`
[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: this `else { if .. }` block can be collapsed
[INFO] [stderr]   --> src/main.rs:68:16
[INFO] [stderr]    |
[INFO] [stderr] 68 |           } else {
[INFO] [stderr]    |  ________________^
[INFO] [stderr] 69 | |             if neighbors == 2 || neighbors == 3 {
[INFO] [stderr] 70 | |                 return 1;
[INFO] [stderr] 71 | |             } else {
[INFO] [stderr] 72 | |                 return 0;
[INFO] [stderr] 73 | |             }
[INFO] [stderr] 74 | |         }
[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] 68 |         } else if neighbors == 2 || neighbors == 3 {
[INFO] [stderr] 69 |     return 1;
[INFO] [stderr] 70 | } else {
[INFO] [stderr] 71 |     return 0;
[INFO] [stderr] 72 | }
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `for` head expression
[INFO] [stderr]   --> src/main.rs:79:20
[INFO] [stderr]    |
[INFO] [stderr] 79 |         for idx in (0..(self.width * self.height)) {
[INFO] [stderr]    |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `for` head expression
[INFO] [stderr]   --> src/main.rs:95:14
[INFO] [stderr]    |
[INFO] [stderr] 95 |     for _ in (0..100) {
[INFO] [stderr]    |              ^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `for` head expression
[INFO] [stderr]   --> src/main.rs:16:18
[INFO] [stderr]    |
[INFO] [stderr] 16 |         for _ in (0..(w*h)) {
[INFO] [stderr]    |                  ^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_parens)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `for` head expression
[INFO] [stderr]   --> src/main.rs:27:20
[INFO] [stderr]    |
[INFO] [stderr] 27 |         for idx in (0..(self.width * self.height)) {
[INFO] [stderr]    |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/main.rs:46:9
[INFO] [stderr]    |
[INFO] [stderr] 46 |         return self.data[idx as usize];
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `self.data[idx as usize]`
[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/main.rs:64:17
[INFO] [stderr]    |
[INFO] [stderr] 64 |                 return 1;
[INFO] [stderr]    |                 ^^^^^^^^^ help: remove `return` as shown: `1`
[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/main.rs:66:17
[INFO] [stderr]    |
[INFO] [stderr] 66 |                 return 0;
[INFO] [stderr]    |                 ^^^^^^^^^ help: remove `return` as shown: `0`
[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/main.rs:70:17
[INFO] [stderr]    |
[INFO] [stderr] 70 |                 return 1;
[INFO] [stderr]    |                 ^^^^^^^^^ help: remove `return` as shown: `1`
[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/main.rs:72:17
[INFO] [stderr]    |
[INFO] [stderr] 72 |                 return 0;
[INFO] [stderr]    |                 ^^^^^^^^^ help: remove `return` as shown: `0`
[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: this `else { if .. }` block can be collapsed
[INFO] [stderr]   --> src/main.rs:68:16
[INFO] [stderr]    |
[INFO] [stderr] 68 |           } else {
[INFO] [stderr]    |  ________________^
[INFO] [stderr] 69 | |             if neighbors == 2 || neighbors == 3 {
[INFO] [stderr] 70 | |                 return 1;
[INFO] [stderr] 71 | |             } else {
[INFO] [stderr] 72 | |                 return 0;
[INFO] [stderr] 73 | |             }
[INFO] [stderr] 74 | |         }
[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] 68 |         } else if neighbors == 2 || neighbors == 3 {
[INFO] [stderr] 69 |     return 1;
[INFO] [stderr] 70 | } else {
[INFO] [stderr] 71 |     return 0;
[INFO] [stderr] 72 | }
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `for` head expression
[INFO] [stderr]   --> src/main.rs:79:20
[INFO] [stderr]    |
[INFO] [stderr] 79 |         for idx in (0..(self.width * self.height)) {
[INFO] [stderr]    |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `for` head expression
[INFO] [stderr]   --> src/main.rs:95:14
[INFO] [stderr]    |
[INFO] [stderr] 95 |     for _ in (0..100) {
[INFO] [stderr]    |              ^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.74s
[INFO] running `"docker" "inspect" "11c53a7f3af40b77b76a01826dc41b6548bdb6d0a0713cc4e4caa4730e48f582"`
[INFO] running `"docker" "rm" "-f" "11c53a7f3af40b77b76a01826dc41b6548bdb6d0a0713cc4e4caa4730e48f582"`
[INFO] [stdout] 11c53a7f3af40b77b76a01826dc41b6548bdb6d0a0713cc4e4caa4730e48f582