[INFO] updating cached repository 0xbsec/terminal2048
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/0xbsec/terminal2048
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/0xbsec/terminal2048" "work/ex/clippy-test-run/sources/stable/gh/0xbsec/terminal2048"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable/gh/0xbsec/terminal2048'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/0xbsec/terminal2048" "work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/0xbsec/terminal2048"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/0xbsec/terminal2048'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] be371372198702880d9eea0750907c3e8c49855f
[INFO] sha for GitHub repo 0xbsec/terminal2048: be371372198702880d9eea0750907c3e8c49855f
[INFO] validating manifest of 0xbsec/terminal2048 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 0xbsec/terminal2048 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 0xbsec/terminal2048
[INFO] finished frobbing 0xbsec/terminal2048
[INFO] frobbed toml for 0xbsec/terminal2048 written to work/ex/clippy-test-run/sources/stable/gh/0xbsec/terminal2048/Cargo.toml
[INFO] started frobbing 0xbsec/terminal2048
[INFO] finished frobbing 0xbsec/terminal2048
[INFO] frobbed toml for 0xbsec/terminal2048 written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/0xbsec/terminal2048/Cargo.toml
[INFO] crate 0xbsec/terminal2048 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 0xbsec/terminal2048 against stable for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-3/stable:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable/gh/0xbsec/terminal2048:/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] ceb1e86ecc7ba78d676392beead35d4ddab659b4b71400bba6ff0d97667f0895
[INFO] running `"docker" "start" "-a" "ceb1e86ecc7ba78d676392beead35d4ddab659b4b71400bba6ff0d97667f0895"`
[INFO] [stderr]     Checking bincode v0.9.2
[INFO] [stderr]     Checking term2048 v0.0.1 (/opt/crater/workdir)
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]    --> src/main.rs:443:13
[INFO] [stderr]     |
[INFO] [stderr] 443 |             lines: lines,
[INFO] [stderr]     |             ^^^^^^^^^^^^ help: replace it with: `lines`
[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/main.rs:503:17
[INFO] [stderr]     |
[INFO] [stderr] 503 |         (State {lines: lines}, added_score)
[INFO] [stderr]     |                 ^^^^^^^^^^^^ help: replace it with: `lines`
[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/main.rs:554:17
[INFO] [stderr]     |
[INFO] [stderr] 554 |         (State {lines: lines}, added_score)
[INFO] [stderr]     |                 ^^^^^^^^^^^^ help: replace it with: `lines`
[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/main.rs:604:17
[INFO] [stderr]     |
[INFO] [stderr] 604 |         (State {lines: lines}, added_score)
[INFO] [stderr]     |                 ^^^^^^^^^^^^ help: replace it with: `lines`
[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/main.rs:651:17
[INFO] [stderr]     |
[INFO] [stderr] 651 |         (State {lines: lines}, added_score)
[INFO] [stderr]     |                 ^^^^^^^^^^^^ help: replace it with: `lines`
[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/main.rs:992:13
[INFO] [stderr]     |
[INFO] [stderr] 992 |             current_score: current_score,
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `current_score`
[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/main.rs:993:13
[INFO] [stderr]     |
[INFO] [stderr] 993 |             best_score: best_score,
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `best_score`
[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/main.rs:443:13
[INFO] [stderr]     |
[INFO] [stderr] 443 |             lines: lines,
[INFO] [stderr]     |             ^^^^^^^^^^^^ help: replace it with: `lines`
[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/main.rs:503:17
[INFO] [stderr]     |
[INFO] [stderr] 503 |         (State {lines: lines}, added_score)
[INFO] [stderr]     |                 ^^^^^^^^^^^^ help: replace it with: `lines`
[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/main.rs:554:17
[INFO] [stderr]     |
[INFO] [stderr] 554 |         (State {lines: lines}, added_score)
[INFO] [stderr]     |                 ^^^^^^^^^^^^ help: replace it with: `lines`
[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/main.rs:604:17
[INFO] [stderr]     |
[INFO] [stderr] 604 |         (State {lines: lines}, added_score)
[INFO] [stderr]     |                 ^^^^^^^^^^^^ help: replace it with: `lines`
[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/main.rs:651:17
[INFO] [stderr]     |
[INFO] [stderr] 651 |         (State {lines: lines}, added_score)
[INFO] [stderr]     |                 ^^^^^^^^^^^^ help: replace it with: `lines`
[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/main.rs:992:13
[INFO] [stderr]     |
[INFO] [stderr] 992 |             current_score: current_score,
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `current_score`
[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/main.rs:993:13
[INFO] [stderr]     |
[INFO] [stderr] 993 |             best_score: best_score,
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `best_score`
[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/main.rs:684:9
[INFO] [stderr]     |
[INFO] [stderr] 684 |         return false;
[INFO] [stderr]     |         ^^^^^^^^^^^^^ help: remove `return` as shown: `false`
[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:684:9
[INFO] [stderr]     |
[INFO] [stderr] 684 |         return false;
[INFO] [stderr]     |         ^^^^^^^^^^^^^ help: remove `return` as shown: `false`
[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: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]    --> src/main.rs:157:21
[INFO] [stderr]     |
[INFO] [stderr] 157 |     fn rand<T>(vec: &Vec<T>) -> &T {
[INFO] [stderr]     |                     ^^^^^^^ help: change this to: `&[T]`
[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: this argument is passed by reference, but would be more efficient if passed by value
[INFO] [stderr]    --> src/main.rs:228:17
[INFO] [stderr]     |
[INFO] [stderr] 228 |     fn is_empty(&self) -> bool {
[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 argument is passed by reference, but would be more efficient if passed by value
[INFO] [stderr]    --> src/main.rs:236:15
[INFO] [stderr]     |
[INFO] [stderr] 236 |     fn bcolor(&self, status: &Status) -> RGB {
[INFO] [stderr]     |               ^^^^^ help: consider passing by value instead: `self`
[INFO] [stderr]     |
[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 argument is passed by reference, but would be more efficient if passed by value
[INFO] [stderr]    --> src/main.rs:288:15
[INFO] [stderr]     |
[INFO] [stderr] 288 |     fn fcolor(&self, status: &Status) -> RGB {
[INFO] [stderr]     |               ^^^^^ help: consider passing by value instead: `self`
[INFO] [stderr]     |
[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 argument is passed by reference, but would be more efficient if passed by value
[INFO] [stderr]    --> src/main.rs:310:11
[INFO] [stderr]     |
[INFO] [stderr] 310 |     fn bc(&self, status: &Status) -> String {
[INFO] [stderr]     |           ^^^^^ help: consider passing by value instead: `self`
[INFO] [stderr]     |
[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 argument is passed by reference, but would be more efficient if passed by value
[INFO] [stderr]    --> src/main.rs:314:11
[INFO] [stderr]     |
[INFO] [stderr] 314 |     fn fc(&self, status: &Status) -> String {
[INFO] [stderr]     |           ^^^^^ help: consider passing by value instead: `self`
[INFO] [stderr]     |
[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 argument is passed by reference, but would be more efficient if passed by value
[INFO] [stderr]    --> src/main.rs:318:15
[INFO] [stderr]     |
[INFO] [stderr] 318 |     fn format(&self) -> String {
[INFO] [stderr]     |               ^^^^^ help: consider passing by value instead: `self`
[INFO] [stderr]     |
[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 argument is passed by reference, but would be more efficient if passed by value
[INFO] [stderr]    --> src/main.rs:324:15
[INFO] [stderr]     |
[INFO] [stderr] 324 |     fn header(&self, status: &Status) -> String {
[INFO] [stderr]     |               ^^^^^ help: consider passing by value instead: `self`
[INFO] [stderr]     |
[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 argument is passed by reference, but would be more efficient if passed by value
[INFO] [stderr]    --> src/main.rs:331:13
[INFO] [stderr]     |
[INFO] [stderr] 331 |     fn body(&self, status: &Status) -> String {
[INFO] [stderr]     |             ^^^^^ help: consider passing by value instead: `self`
[INFO] [stderr]     |
[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 argument is passed by reference, but would be more efficient if passed by value
[INFO] [stderr]    --> src/main.rs:340:15
[INFO] [stderr]     |
[INFO] [stderr] 340 |     fn footer(&self, status: &Status) -> String {
[INFO] [stderr]     |               ^^^^^ help: consider passing by value instead: `self`
[INFO] [stderr]     |
[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: length comparison to zero
[INFO] [stderr]    --> src/main.rs:431:12
[INFO] [stderr]     |
[INFO] [stderr] 431 |         if zeros.len() == 0 {
[INFO] [stderr]     |            ^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `zeros.is_empty()`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::len_zero)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: using `clone` on a `Copy` type
[INFO] [stderr]    --> src/main.rs:473:41
[INFO] [stderr]     |
[INFO] [stderr] 473 |                 lines[furthest_up][x] = lines[y][x].clone();
[INFO] [stderr]     |                                         ^^^^^^^^^^^^^^^^^^^ help: try removing the `clone` call: `lines[y][x]`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::clone_on_copy)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_on_copy
[INFO] [stderr] 
[INFO] [stderr] warning: using `clone` on a `Copy` type
[INFO] [stderr]    --> src/main.rs:496:43
[INFO] [stderr]     |
[INFO] [stderr] 496 |                             lines[t][x] = lines[t + 1][x].clone();
[INFO] [stderr]     |                                           ^^^^^^^^^^^^^^^^^^^^^^^ help: try removing the `clone` call: `lines[t + 1][x]`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_on_copy
[INFO] [stderr] 
[INFO] [stderr] warning: using `clone` on a `Copy` type
[INFO] [stderr]    --> src/main.rs:523:43
[INFO] [stderr]     |
[INFO] [stderr] 523 |                 lines[furthest_down][x] = lines[y][x].clone();
[INFO] [stderr]     |                                           ^^^^^^^^^^^^^^^^^^^ help: try removing the `clone` call: `lines[y][x]`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_on_copy
[INFO] [stderr] 
[INFO] [stderr] warning: using `clone` on a `Copy` type
[INFO] [stderr]    --> src/main.rs:547:43
[INFO] [stderr]     |
[INFO] [stderr] 547 |                             lines[t][x] = lines[t - 1][x].clone();
[INFO] [stderr]     |                                           ^^^^^^^^^^^^^^^^^^^^^^^ help: try removing the `clone` call: `lines[t - 1][x]`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_on_copy
[INFO] [stderr] 
[INFO] [stderr] warning: the loop variable `y` is only used to index `lines`.
[INFO] [stderr]    --> src/main.rs:561:18
[INFO] [stderr]     |
[INFO] [stderr] 561 |         for y in 0..4 {
[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] 561 |         for <item> in lines.iter_mut().take(4) {
[INFO] [stderr]     |             ^^^^^^    ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: using `clone` on a `Copy` type
[INFO] [stderr]    --> src/main.rs:572:38
[INFO] [stderr]     |
[INFO] [stderr] 572 |                 lines[y][furthest] = lines[y][x].clone();
[INFO] [stderr]     |                                      ^^^^^^^^^^^^^^^^^^^ help: try removing the `clone` call: `lines[y][x]`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_on_copy
[INFO] [stderr] 
[INFO] [stderr] warning: the loop variable `y` is only used to index `lines`.
[INFO] [stderr]    --> src/main.rs:583:22
[INFO] [stderr]     |
[INFO] [stderr] 583 |             for y in 0..4 {
[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] 583 |             for <item> in lines.iter_mut().take(4) {
[INFO] [stderr]     |                 ^^^^^^    ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: using `clone` on a `Copy` type
[INFO] [stderr]    --> src/main.rs:597:43
[INFO] [stderr]     |
[INFO] [stderr] 597 |                             lines[y][t] = lines[y][t + 1].clone();
[INFO] [stderr]     |                                           ^^^^^^^^^^^^^^^^^^^^^^^ help: try removing the `clone` call: `lines[y][t + 1]`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_on_copy
[INFO] [stderr] 
[INFO] [stderr] warning: the loop variable `y` is only used to index `lines`.
[INFO] [stderr]    --> src/main.rs:611:18
[INFO] [stderr]     |
[INFO] [stderr] 611 |         for y in 0..4 {
[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] 611 |         for <item> in lines.iter_mut().take(4) {
[INFO] [stderr]     |             ^^^^^^    ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: using `clone` on a `Copy` type
[INFO] [stderr]    --> src/main.rs:621:38
[INFO] [stderr]     |
[INFO] [stderr] 621 |                 lines[y][furthest] = lines[y][x].clone();
[INFO] [stderr]     |                                      ^^^^^^^^^^^^^^^^^^^ help: try removing the `clone` call: `lines[y][x]`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_on_copy
[INFO] [stderr] 
[INFO] [stderr] warning: the loop variable `y` is only used to index `lines`.
[INFO] [stderr]    --> src/main.rs:631:22
[INFO] [stderr]     |
[INFO] [stderr] 631 |             for y in 0..4 {
[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] 631 |             for <item> in lines.iter_mut().take(4) {
[INFO] [stderr]     |                 ^^^^^^    ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: using `clone` on a `Copy` type
[INFO] [stderr]    --> src/main.rs:644:43
[INFO] [stderr]     |
[INFO] [stderr] 644 |                             lines[y][t] = lines[y][t - 1].clone();
[INFO] [stderr]     |                                           ^^^^^^^^^^^^^^^^^^^^^^^ help: try removing the `clone` call: `lines[y][t - 1]`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_on_copy
[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:654:35
[INFO] [stderr]     |
[INFO] [stderr] 654 |     fn get_cols_from_lines(lines: &Vec<Vec<Slot>>) -> Vec<Vec<Slot>> {
[INFO] [stderr]     |                                   ^^^^^^^^^^^^^^^ help: change this to: `&[Vec<Slot>]`
[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: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]    --> src/main.rs:157:21
[INFO] [stderr]     |
[INFO] [stderr] 157 |     fn rand<T>(vec: &Vec<T>) -> &T {
[INFO] [stderr]     |                     ^^^^^^^ help: change this to: `&[T]`
[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: this argument is passed by reference, but would be more efficient if passed by value
[INFO] [stderr]    --> src/main.rs:228:17
[INFO] [stderr]     |
[INFO] [stderr] 228 |     fn is_empty(&self) -> bool {
[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 argument is passed by reference, but would be more efficient if passed by value
[INFO] [stderr]    --> src/main.rs:236:15
[INFO] [stderr]     |
[INFO] [stderr] 236 |     fn bcolor(&self, status: &Status) -> RGB {
[INFO] [stderr]     |               ^^^^^ help: consider passing by value instead: `self`
[INFO] [stderr]     |
[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 argument is passed by reference, but would be more efficient if passed by value
[INFO] [stderr]    --> src/main.rs:288:15
[INFO] [stderr]     |
[INFO] [stderr] 288 |     fn fcolor(&self, status: &Status) -> RGB {
[INFO] [stderr]     |               ^^^^^ help: consider passing by value instead: `self`
[INFO] [stderr]     |
[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 argument is passed by reference, but would be more efficient if passed by value
[INFO] [stderr]    --> src/main.rs:310:11
[INFO] [stderr]     |
[INFO] [stderr] 310 |     fn bc(&self, status: &Status) -> String {
[INFO] [stderr]     |           ^^^^^ help: consider passing by value instead: `self`
[INFO] [stderr]     |
[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 argument is passed by reference, but would be more efficient if passed by value
[INFO] [stderr]    --> src/main.rs:314:11
[INFO] [stderr]     |
[INFO] [stderr] 314 |     fn fc(&self, status: &Status) -> String {
[INFO] [stderr]     |           ^^^^^ help: consider passing by value instead: `self`
[INFO] [stderr]     |
[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 argument is passed by reference, but would be more efficient if passed by value
[INFO] [stderr]    --> src/main.rs:318:15
[INFO] [stderr]     |
[INFO] [stderr] 318 |     fn format(&self) -> String {
[INFO] [stderr]     |               ^^^^^ help: consider passing by value instead: `self`
[INFO] [stderr]     |
[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 argument is passed by reference, but would be more efficient if passed by value
[INFO] [stderr]    --> src/main.rs:324:15
[INFO] [stderr]     |
[INFO] [stderr] 324 |     fn header(&self, status: &Status) -> String {
[INFO] [stderr]     |               ^^^^^ help: consider passing by value instead: `self`
[INFO] [stderr]     |
[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 argument is passed by reference, but would be more efficient if passed by value
[INFO] [stderr]    --> src/main.rs:331:13
[INFO] [stderr]     |
[INFO] [stderr] 331 |     fn body(&self, status: &Status) -> String {
[INFO] [stderr]     |             ^^^^^ help: consider passing by value instead: `self`
[INFO] [stderr]     |
[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 argument is passed by reference, but would be more efficient if passed by value
[INFO] [stderr]    --> src/main.rs:340:15
[INFO] [stderr]     |
[INFO] [stderr] 340 |     fn footer(&self, status: &Status) -> String {
[INFO] [stderr]     |               ^^^^^ help: consider passing by value instead: `self`
[INFO] [stderr]     |
[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: length comparison to zero
[INFO] [stderr]    --> src/main.rs:431:12
[INFO] [stderr]     |
[INFO] [stderr] 431 |         if zeros.len() == 0 {
[INFO] [stderr]     |            ^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `zeros.is_empty()`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::len_zero)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: using `clone` on a `Copy` type
[INFO] [stderr]    --> src/main.rs:473:41
[INFO] [stderr]     |
[INFO] [stderr] 473 |                 lines[furthest_up][x] = lines[y][x].clone();
[INFO] [stderr]     |                                         ^^^^^^^^^^^^^^^^^^^ help: try removing the `clone` call: `lines[y][x]`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::clone_on_copy)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_on_copy
[INFO] [stderr] 
[INFO] [stderr] warning: using `clone` on a `Copy` type
[INFO] [stderr]    --> src/main.rs:496:43
[INFO] [stderr]     |
[INFO] [stderr] 496 |                             lines[t][x] = lines[t + 1][x].clone();
[INFO] [stderr]     |                                           ^^^^^^^^^^^^^^^^^^^^^^^ help: try removing the `clone` call: `lines[t + 1][x]`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_on_copy
[INFO] [stderr] 
[INFO] [stderr] warning: using `clone` on a `Copy` type
[INFO] [stderr]    --> src/main.rs:523:43
[INFO] [stderr]     |
[INFO] [stderr] 523 |                 lines[furthest_down][x] = lines[y][x].clone();
[INFO] [stderr]     |                                           ^^^^^^^^^^^^^^^^^^^ help: try removing the `clone` call: `lines[y][x]`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_on_copy
[INFO] [stderr] 
[INFO] [stderr] warning: useless use of `format!`
[INFO] [stderr]    --> src/main.rs:890:30
[INFO] [stderr]     |
[INFO] [stderr] 890 |             result.push_str(&format!("\n"));
[INFO] [stderr]     |                              ^^^^^^^^^^^^^ help: consider using .to_string(): `"\n".to_string()`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::useless_format)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_format
[INFO] [stderr] 
[INFO] [stderr] warning: using `clone` on a `Copy` type
[INFO] [stderr]    --> src/main.rs:547:43
[INFO] [stderr]     |
[INFO] [stderr] 547 |                             lines[t][x] = lines[t - 1][x].clone();
[INFO] [stderr]     |                                           ^^^^^^^^^^^^^^^^^^^^^^^ help: try removing the `clone` call: `lines[t - 1][x]`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_on_copy
[INFO] [stderr] 
[INFO] [stderr] warning: the loop variable `y` is only used to index `lines`.
[INFO] [stderr]    --> src/main.rs:561:18
[INFO] [stderr]     |
[INFO] [stderr] 561 |         for y in 0..4 {
[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] 561 |         for <item> in lines.iter_mut().take(4) {
[INFO] [stderr]     |             ^^^^^^    ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: using `clone` on a `Copy` type
[INFO] [stderr]    --> src/main.rs:572:38
[INFO] [stderr]     |
[INFO] [stderr] 572 |                 lines[y][furthest] = lines[y][x].clone();
[INFO] [stderr]     |                                      ^^^^^^^^^^^^^^^^^^^ help: try removing the `clone` call: `lines[y][x]`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_on_copy
[INFO] [stderr] 
[INFO] [stderr] warning: the loop variable `y` is only used to index `lines`.
[INFO] [stderr]    --> src/main.rs:583:22
[INFO] [stderr]     |
[INFO] [stderr] 583 |             for y in 0..4 {
[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] 583 |             for <item> in lines.iter_mut().take(4) {
[INFO] [stderr]     |                 ^^^^^^    ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: using `clone` on a `Copy` type
[INFO] [stderr]    --> src/main.rs:597:43
[INFO] [stderr]     |
[INFO] [stderr] 597 |                             lines[y][t] = lines[y][t + 1].clone();
[INFO] [stderr]     |                                           ^^^^^^^^^^^^^^^^^^^^^^^ help: try removing the `clone` call: `lines[y][t + 1]`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_on_copy
[INFO] [stderr] 
[INFO] [stderr] warning: the loop variable `y` is only used to index `lines`.
[INFO] [stderr]    --> src/main.rs:611:18
[INFO] [stderr]     |
[INFO] [stderr] 611 |         for y in 0..4 {
[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] 611 |         for <item> in lines.iter_mut().take(4) {
[INFO] [stderr]     |             ^^^^^^    ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: using `clone` on a `Copy` type
[INFO] [stderr]    --> src/main.rs:621:38
[INFO] [stderr]     |
[INFO] [stderr] 621 |                 lines[y][furthest] = lines[y][x].clone();
[INFO] [stderr]     |                                      ^^^^^^^^^^^^^^^^^^^ help: try removing the `clone` call: `lines[y][x]`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_on_copy
[INFO] [stderr] 
[INFO] [stderr] warning: the loop variable `y` is only used to index `lines`.
[INFO] [stderr]    --> src/main.rs:631:22
[INFO] [stderr]     |
[INFO] [stderr] 631 |             for y in 0..4 {
[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] 631 |             for <item> in lines.iter_mut().take(4) {
[INFO] [stderr]     |                 ^^^^^^    ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: using `clone` on a `Copy` type
[INFO] [stderr]    --> src/main.rs:644:43
[INFO] [stderr]     |
[INFO] [stderr] 644 |                             lines[y][t] = lines[y][t - 1].clone();
[INFO] [stderr]     |                                           ^^^^^^^^^^^^^^^^^^^^^^^ help: try removing the `clone` call: `lines[y][t - 1]`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_on_copy
[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:654:35
[INFO] [stderr]     |
[INFO] [stderr] 654 |     fn get_cols_from_lines(lines: &Vec<Vec<Slot>>) -> Vec<Vec<Slot>> {
[INFO] [stderr]     |                                   ^^^^^^^^^^^^^^^ help: change this to: `&[Vec<Slot>]`
[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: useless use of `format!`
[INFO] [stderr]    --> src/main.rs:890:30
[INFO] [stderr]     |
[INFO] [stderr] 890 |             result.push_str(&format!("\n"));
[INFO] [stderr]     |                              ^^^^^^^^^^^^^ help: consider using .to_string(): `"\n".to_string()`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::useless_format)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_format
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.31s
[INFO] running `"docker" "inspect" "ceb1e86ecc7ba78d676392beead35d4ddab659b4b71400bba6ff0d97667f0895"`
[INFO] running `"docker" "rm" "-f" "ceb1e86ecc7ba78d676392beead35d4ddab659b4b71400bba6ff0d97667f0895"`
[INFO] [stdout] ceb1e86ecc7ba78d676392beead35d4ddab659b4b71400bba6ff0d97667f0895