[INFO] updating cached repository droidkid/rust-tetris
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/droidkid/rust-tetris
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/droidkid/rust-tetris" "work/ex/clippy-test-run/sources/stable/gh/droidkid/rust-tetris"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable/gh/droidkid/rust-tetris'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/droidkid/rust-tetris" "work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/droidkid/rust-tetris"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/droidkid/rust-tetris'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] d7739277f8489ba9f6b2ba7f772f909813828b03
[INFO] sha for GitHub repo droidkid/rust-tetris: d7739277f8489ba9f6b2ba7f772f909813828b03
[INFO] validating manifest of droidkid/rust-tetris 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 droidkid/rust-tetris 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 droidkid/rust-tetris
[INFO] finished frobbing droidkid/rust-tetris
[INFO] frobbed toml for droidkid/rust-tetris written to work/ex/clippy-test-run/sources/stable/gh/droidkid/rust-tetris/Cargo.toml
[INFO] started frobbing droidkid/rust-tetris
[INFO] finished frobbing droidkid/rust-tetris
[INFO] frobbed toml for droidkid/rust-tetris written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/droidkid/rust-tetris/Cargo.toml
[INFO] crate droidkid/rust-tetris 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 droidkid/rust-tetris against stable for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-1/stable:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable/gh/droidkid/rust-tetris:/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] cb55fc56baab378e3a80a8ee20c3ad78cfad176efdca1ce7d03fc829f1c36432
[INFO] running `"docker" "start" "-a" "cb55fc56baab378e3a80a8ee20c3ad78cfad176efdca1ce7d03fc829f1c36432"`
[INFO] [stderr]     Checking sdl2 v0.31.0
[INFO] [stderr]     Checking rust-tetris v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/main.rs:72:13
[INFO] [stderr]    |
[INFO] [stderr] 72 |             pos: pos,
[INFO] [stderr]    |             ^^^^^^^^ help: replace it with: `pos`
[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:86:13
[INFO] [stderr]    |
[INFO] [stderr] 86 |             pos: pos,
[INFO] [stderr]    |             ^^^^^^^^ help: replace it with: `pos`
[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:100:13
[INFO] [stderr]     |
[INFO] [stderr] 100 |             pos: pos,
[INFO] [stderr]     |             ^^^^^^^^ help: replace it with: `pos`
[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:114:13
[INFO] [stderr]     |
[INFO] [stderr] 114 |             pos: pos,
[INFO] [stderr]     |             ^^^^^^^^ help: replace it with: `pos`
[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:129:13
[INFO] [stderr]     |
[INFO] [stderr] 129 |             pos: pos,
[INFO] [stderr]     |             ^^^^^^^^ help: replace it with: `pos`
[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:143:13
[INFO] [stderr]     |
[INFO] [stderr] 143 |             pos: pos,
[INFO] [stderr]     |             ^^^^^^^^ help: replace it with: `pos`
[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:157:13
[INFO] [stderr]     |
[INFO] [stderr] 157 |             pos: pos,
[INFO] [stderr]     |             ^^^^^^^^ help: replace it with: `pos`
[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:345:13
[INFO] [stderr]     |
[INFO] [stderr] 345 |             width: width,
[INFO] [stderr]     |             ^^^^^^^^^^^^ help: replace it with: `width`
[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:346:13
[INFO] [stderr]     |
[INFO] [stderr] 346 |             height: height,
[INFO] [stderr]     |             ^^^^^^^^^^^^^^ help: replace it with: `height`
[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:347:13
[INFO] [stderr]     |
[INFO] [stderr] 347 |             board: board,
[INFO] [stderr]     |             ^^^^^^^^^^^^ help: replace it with: `board`
[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:72:13
[INFO] [stderr]    |
[INFO] [stderr] 72 |             pos: pos,
[INFO] [stderr]    |             ^^^^^^^^ help: replace it with: `pos`
[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:86:13
[INFO] [stderr]    |
[INFO] [stderr] 86 |             pos: pos,
[INFO] [stderr]    |             ^^^^^^^^ help: replace it with: `pos`
[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:100:13
[INFO] [stderr]     |
[INFO] [stderr] 100 |             pos: pos,
[INFO] [stderr]     |             ^^^^^^^^ help: replace it with: `pos`
[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:114:13
[INFO] [stderr]     |
[INFO] [stderr] 114 |             pos: pos,
[INFO] [stderr]     |             ^^^^^^^^ help: replace it with: `pos`
[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:129:13
[INFO] [stderr]     |
[INFO] [stderr] 129 |             pos: pos,
[INFO] [stderr]     |             ^^^^^^^^ help: replace it with: `pos`
[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:143:13
[INFO] [stderr]     |
[INFO] [stderr] 143 |             pos: pos,
[INFO] [stderr]     |             ^^^^^^^^ help: replace it with: `pos`
[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:157:13
[INFO] [stderr]     |
[INFO] [stderr] 157 |             pos: pos,
[INFO] [stderr]     |             ^^^^^^^^ help: replace it with: `pos`
[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:345:13
[INFO] [stderr]     |
[INFO] [stderr] 345 |             width: width,
[INFO] [stderr]     |             ^^^^^^^^^^^^ help: replace it with: `width`
[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:346:13
[INFO] [stderr]     |
[INFO] [stderr] 346 |             height: height,
[INFO] [stderr]     |             ^^^^^^^^^^^^^^ help: replace it with: `height`
[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:347:13
[INFO] [stderr]     |
[INFO] [stderr] 347 |             board: board,
[INFO] [stderr]     |             ^^^^^^^^^^^^ help: replace it with: `board`
[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: unused import: `std::thread`
[INFO] [stderr]   --> src/main.rs:17:5
[INFO] [stderr]    |
[INFO] [stderr] 17 | use std::thread;
[INFO] [stderr]    |     ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `for` head expression
[INFO] [stderr]    --> src/main.rs:422:22
[INFO] [stderr]     |
[INFO] [stderr] 422 |             for j in (1..self.width-1) {
[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 `if` condition
[INFO] [stderr]    --> src/main.rs:473:16
[INFO] [stderr]     |
[INFO] [stderr] 473 |             if (self.game_over_countdown > 0) {
[INFO] [stderr]     |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `if` condition
[INFO] [stderr]    --> src/main.rs:483:12
[INFO] [stderr]     |
[INFO] [stderr] 483 |         if (input.left_key_pressed) {
[INFO] [stderr]     |            ^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `if` condition
[INFO] [stderr]    --> src/main.rs:486:12
[INFO] [stderr]     |
[INFO] [stderr] 486 |         if (input.right_key_pressed) {
[INFO] [stderr]     |            ^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `if` condition
[INFO] [stderr]    --> src/main.rs:489:12
[INFO] [stderr]     |
[INFO] [stderr] 489 |         if (input.up_key_pressed) {
[INFO] [stderr]     |            ^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `if` condition
[INFO] [stderr]    --> src/main.rs:493:12
[INFO] [stderr]     |
[INFO] [stderr] 493 |         if (input.down_key_pressed) {
[INFO] [stderr]     |            ^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `if` condition
[INFO] [stderr]    --> src/main.rs:500:12
[INFO] [stderr]     |
[INFO] [stderr] 500 |         if (self.gravity_countdown > 0) {
[INFO] [stderr]     |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `if` condition
[INFO] [stderr]    --> src/main.rs:503:12
[INFO] [stderr]     |
[INFO] [stderr] 503 |         if (self.lock_delay_countdown > 0 && self.locking_state) {
[INFO] [stderr]     |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `if` condition
[INFO] [stderr]    --> src/main.rs:539:12
[INFO] [stderr]     |
[INFO] [stderr] 539 |         if (self.level >= 10) {
[INFO] [stderr]     |            ^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `if` condition
[INFO] [stderr]    --> src/main.rs:646:12
[INFO] [stderr]     |
[INFO] [stderr] 646 |         if (event_pump.keyboard_state().is_scancode_pressed(Scancode::Down)) {
[INFO] [stderr]     |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::thread`
[INFO] [stderr]   --> src/main.rs:17:5
[INFO] [stderr]    |
[INFO] [stderr] 17 | use std::thread;
[INFO] [stderr]    |     ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `for` head expression
[INFO] [stderr]    --> src/main.rs:422:22
[INFO] [stderr]     |
[INFO] [stderr] 422 |             for j in (1..self.width-1) {
[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 `if` condition
[INFO] [stderr]    --> src/main.rs:473:16
[INFO] [stderr]     |
[INFO] [stderr] 473 |             if (self.game_over_countdown > 0) {
[INFO] [stderr]     |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `if` condition
[INFO] [stderr]    --> src/main.rs:483:12
[INFO] [stderr]     |
[INFO] [stderr] 483 |         if (input.left_key_pressed) {
[INFO] [stderr]     |            ^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `if` condition
[INFO] [stderr]    --> src/main.rs:486:12
[INFO] [stderr]     |
[INFO] [stderr] 486 |         if (input.right_key_pressed) {
[INFO] [stderr]     |            ^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `if` condition
[INFO] [stderr]    --> src/main.rs:489:12
[INFO] [stderr]     |
[INFO] [stderr] 489 |         if (input.up_key_pressed) {
[INFO] [stderr]     |            ^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `if` condition
[INFO] [stderr]    --> src/main.rs:493:12
[INFO] [stderr]     |
[INFO] [stderr] 493 |         if (input.down_key_pressed) {
[INFO] [stderr]     |            ^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `if` condition
[INFO] [stderr]    --> src/main.rs:500:12
[INFO] [stderr]     |
[INFO] [stderr] 500 |         if (self.gravity_countdown > 0) {
[INFO] [stderr]     |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `if` condition
[INFO] [stderr]    --> src/main.rs:503:12
[INFO] [stderr]     |
[INFO] [stderr] 503 |         if (self.lock_delay_countdown > 0 && self.locking_state) {
[INFO] [stderr]     |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `if` condition
[INFO] [stderr]    --> src/main.rs:539:12
[INFO] [stderr]     |
[INFO] [stderr] 539 |         if (self.level >= 10) {
[INFO] [stderr]     |            ^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `if` condition
[INFO] [stderr]    --> src/main.rs:646:12
[INFO] [stderr]     |
[INFO] [stderr] 646 |         if (event_pump.keyboard_state().is_scancode_pressed(Scancode::Down)) {
[INFO] [stderr]     |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `move_down_success` is never read
[INFO] [stderr]    --> src/main.rs:508:17
[INFO] [stderr]     |
[INFO] [stderr] 508 |         let mut move_down_success = true;
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_assignments)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/main.rs:613:9
[INFO] [stderr]     |
[INFO] [stderr] 613 |     let mut font = ttf_context.load_font(font_path, 28).unwrap();
[INFO] [stderr]     |         ----^^^^
[INFO] [stderr]     |         |
[INFO] [stderr]     |         help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `is_row_empty`
[INFO] [stderr]    --> src/main.rs:411:5
[INFO] [stderr]     |
[INFO] [stderr] 411 |     fn is_row_empty(&self, row:usize) -> bool {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: static variable `start_pos` should have an upper case name such as `START_POS`
[INFO] [stderr]   --> src/main.rs:20:1
[INFO] [stderr]    |
[INFO] [stderr] 20 | / static start_pos: Pos2D = Pos2D {
[INFO] [stderr] 21 | |     x: 5,
[INFO] [stderr] 22 | |     y: 2
[INFO] [stderr] 23 | | };
[INFO] [stderr]    | |__^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(non_upper_case_globals)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: static variable `tetris_board_width` should have an upper case name such as `TETRIS_BOARD_WIDTH`
[INFO] [stderr]   --> src/main.rs:24:1
[INFO] [stderr]    |
[INFO] [stderr] 24 | static tetris_board_width : usize = 12;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: static variable `tetris_board_height` should have an upper case name such as `TETRIS_BOARD_HEIGHT`
[INFO] [stderr]   --> src/main.rs:25:1
[INFO] [stderr]    |
[INFO] [stderr] 25 | static tetris_board_height : usize = 24;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: manual implementation of an assign operation
[INFO] [stderr]   --> src/main.rs:42:9
[INFO] [stderr]    |
[INFO] [stderr] 42 |         self.x = self.x + pos.x;
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `self.x += pos.x`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::assign_op_pattern)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: manual implementation of an assign operation
[INFO] [stderr]   --> src/main.rs:43:9
[INFO] [stderr]    |
[INFO] [stderr] 43 |         self.y = self.y + pos.y;
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `self.y += pos.y`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[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:46:12
[INFO] [stderr]    |
[INFO] [stderr] 46 |     fn inv(&self) -> Self {
[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: manual implementation of an assign operation
[INFO] [stderr]    --> src/main.rs:252:9
[INFO] [stderr]     |
[INFO] [stderr] 252 |         pos.x = pos.x + diff.x;
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `pos.x += diff.x`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: manual implementation of an assign operation
[INFO] [stderr]    --> src/main.rs:253:9
[INFO] [stderr]     |
[INFO] [stderr] 253 |         pos.y = pos.y + diff.y;
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `pos.y += diff.y`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: manual implementation of an assign operation
[INFO] [stderr]    --> src/main.rs:255:9
[INFO] [stderr]     |
[INFO] [stderr] 255 |         self.block_num = self.block_num + 1;
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `self.block_num += 1`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/main.rs:273:13
[INFO] [stderr]     |
[INFO] [stderr] 273 |             canvas.fill_rect(rect);
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_must_use)] on by default
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: the loop variable `i` is only used to index `board`.
[INFO] [stderr]    --> src/main.rs:337:18
[INFO] [stderr]     |
[INFO] [stderr] 337 |         for i in 0usize..height {
[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] 337 |         for <item> in board.iter_mut().take(height) {
[INFO] [stderr]     |             ^^^^^^    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable `randomTetrisPieceGenerator` should have a snake case name such as `random_tetris_piece_generator`
[INFO] [stderr]    --> src/main.rs:342:13
[INFO] [stderr]     |
[INFO] [stderr] 342 |         let mut randomTetrisPieceGenerator = RandomTetrisPieceGenerator::new();
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(non_snake_case)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: an inclusive range would be more readable
[INFO] [stderr]    --> src/main.rs:421:18
[INFO] [stderr]     |
[INFO] [stderr] 421 |         for i in (2..row+1).rev() {
[INFO] [stderr]     |                  ^^^^^^^^^^ help: use: `(2..=row)`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::range_plus_one)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#range_plus_one
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/main.rs:556:9
[INFO] [stderr]     |
[INFO] [stderr] 556 |         canvas.fill_rect(rect);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `move_down_success` is never read
[INFO] [stderr]    --> src/main.rs:508:17
[INFO] [stderr]     |
[INFO] [stderr] 508 |         let mut move_down_success = true;
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_assignments)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/main.rs:661:13
[INFO] [stderr]     |
[INFO] [stderr] 661 |             canvas.fill_rect(Rect::new(0,0,width,height));
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: useless use of `format!`
[INFO] [stderr]    --> src/main.rs:665:73
[INFO] [stderr]     |
[INFO] [stderr] 665 |             draw_text(&mut canvas, &texture_creator, Pos2D::xy(50,10), &format!("Left, Right to move " ), &font, 3, Color::RGB(255,255,255));
[INFO] [stderr]     |                                                                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using .to_string(): `"Left, Right to move ".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: useless use of `format!`
[INFO] [stderr]    --> src/main.rs:666:73
[INFO] [stderr]     |
[INFO] [stderr] 666 |             draw_text(&mut canvas, &texture_creator, Pos2D::xy(50,20), &format!("Up to rotate" ), &font, 3, Color::RGB(255,255,255));
[INFO] [stderr]     |                                                                         ^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using .to_string(): `"Up to rotate".to_string()`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_format
[INFO] [stderr] 
[INFO] [stderr] warning: useless use of `format!`
[INFO] [stderr]    --> src/main.rs:667:73
[INFO] [stderr]     |
[INFO] [stderr] 667 |             draw_text(&mut canvas, &texture_creator, Pos2D::xy(50,30), &format!("Down to drop" ), &font, 3, Color::RGB(255,255,255));
[INFO] [stderr]     |                                                                         ^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using .to_string(): `"Down to drop".to_string()`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_format
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/main.rs:613:9
[INFO] [stderr]     |
[INFO] [stderr] 613 |     let mut font = ttf_context.load_font(font_path, 28).unwrap();
[INFO] [stderr]     |         ----^^^^
[INFO] [stderr]     |         |
[INFO] [stderr]     |         help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `is_row_empty`
[INFO] [stderr]    --> src/main.rs:411:5
[INFO] [stderr]     |
[INFO] [stderr] 411 |     fn is_row_empty(&self, row:usize) -> bool {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: static variable `start_pos` should have an upper case name such as `START_POS`
[INFO] [stderr]   --> src/main.rs:20:1
[INFO] [stderr]    |
[INFO] [stderr] 20 | / static start_pos: Pos2D = Pos2D {
[INFO] [stderr] 21 | |     x: 5,
[INFO] [stderr] 22 | |     y: 2
[INFO] [stderr] 23 | | };
[INFO] [stderr]    | |__^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(non_upper_case_globals)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: static variable `tetris_board_width` should have an upper case name such as `TETRIS_BOARD_WIDTH`
[INFO] [stderr]   --> src/main.rs:24:1
[INFO] [stderr]    |
[INFO] [stderr] 24 | static tetris_board_width : usize = 12;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: static variable `tetris_board_height` should have an upper case name such as `TETRIS_BOARD_HEIGHT`
[INFO] [stderr]   --> src/main.rs:25:1
[INFO] [stderr]    |
[INFO] [stderr] 25 | static tetris_board_height : usize = 24;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: manual implementation of an assign operation
[INFO] [stderr]   --> src/main.rs:42:9
[INFO] [stderr]    |
[INFO] [stderr] 42 |         self.x = self.x + pos.x;
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `self.x += pos.x`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::assign_op_pattern)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: manual implementation of an assign operation
[INFO] [stderr]   --> src/main.rs:43:9
[INFO] [stderr]    |
[INFO] [stderr] 43 |         self.y = self.y + pos.y;
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `self.y += pos.y`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[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:46:12
[INFO] [stderr]    |
[INFO] [stderr] 46 |     fn inv(&self) -> Self {
[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: manual implementation of an assign operation
[INFO] [stderr]    --> src/main.rs:252:9
[INFO] [stderr]     |
[INFO] [stderr] 252 |         pos.x = pos.x + diff.x;
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `pos.x += diff.x`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: manual implementation of an assign operation
[INFO] [stderr]    --> src/main.rs:253:9
[INFO] [stderr]     |
[INFO] [stderr] 253 |         pos.y = pos.y + diff.y;
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `pos.y += diff.y`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: manual implementation of an assign operation
[INFO] [stderr]    --> src/main.rs:255:9
[INFO] [stderr]     |
[INFO] [stderr] 255 |         self.block_num = self.block_num + 1;
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `self.block_num += 1`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/main.rs:273:13
[INFO] [stderr]     |
[INFO] [stderr] 273 |             canvas.fill_rect(rect);
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_must_use)] on by default
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: the loop variable `i` is only used to index `board`.
[INFO] [stderr]    --> src/main.rs:337:18
[INFO] [stderr]     |
[INFO] [stderr] 337 |         for i in 0usize..height {
[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] 337 |         for <item> in board.iter_mut().take(height) {
[INFO] [stderr]     |             ^^^^^^    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable `randomTetrisPieceGenerator` should have a snake case name such as `random_tetris_piece_generator`
[INFO] [stderr]    --> src/main.rs:342:13
[INFO] [stderr]     |
[INFO] [stderr] 342 |         let mut randomTetrisPieceGenerator = RandomTetrisPieceGenerator::new();
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(non_snake_case)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: an inclusive range would be more readable
[INFO] [stderr]    --> src/main.rs:421:18
[INFO] [stderr]     |
[INFO] [stderr] 421 |         for i in (2..row+1).rev() {
[INFO] [stderr]     |                  ^^^^^^^^^^ help: use: `(2..=row)`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::range_plus_one)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#range_plus_one
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/main.rs:556:9
[INFO] [stderr]     |
[INFO] [stderr] 556 |         canvas.fill_rect(rect);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/main.rs:661:13
[INFO] [stderr]     |
[INFO] [stderr] 661 |             canvas.fill_rect(Rect::new(0,0,width,height));
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: useless use of `format!`
[INFO] [stderr]    --> src/main.rs:665:73
[INFO] [stderr]     |
[INFO] [stderr] 665 |             draw_text(&mut canvas, &texture_creator, Pos2D::xy(50,10), &format!("Left, Right to move " ), &font, 3, Color::RGB(255,255,255));
[INFO] [stderr]     |                                                                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using .to_string(): `"Left, Right to move ".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: useless use of `format!`
[INFO] [stderr]    --> src/main.rs:666:73
[INFO] [stderr]     |
[INFO] [stderr] 666 |             draw_text(&mut canvas, &texture_creator, Pos2D::xy(50,20), &format!("Up to rotate" ), &font, 3, Color::RGB(255,255,255));
[INFO] [stderr]     |                                                                         ^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using .to_string(): `"Up to rotate".to_string()`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_format
[INFO] [stderr] 
[INFO] [stderr] warning: useless use of `format!`
[INFO] [stderr]    --> src/main.rs:667:73
[INFO] [stderr]     |
[INFO] [stderr] 667 |             draw_text(&mut canvas, &texture_creator, Pos2D::xy(50,30), &format!("Down to drop" ), &font, 3, Color::RGB(255,255,255));
[INFO] [stderr]     |                                                                         ^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using .to_string(): `"Down to drop".to_string()`
[INFO] [stderr]     |
[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 6.53s
[INFO] running `"docker" "inspect" "cb55fc56baab378e3a80a8ee20c3ad78cfad176efdca1ce7d03fc829f1c36432"`
[INFO] running `"docker" "rm" "-f" "cb55fc56baab378e3a80a8ee20c3ad78cfad176efdca1ce7d03fc829f1c36432"`
[INFO] [stdout] cb55fc56baab378e3a80a8ee20c3ad78cfad176efdca1ce7d03fc829f1c36432