[INFO] cloning repository https://github.com/Nyanguy/rust.tetris
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Nyanguy/rust.tetris" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNyanguy%2Frust.tetris", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNyanguy%2Frust.tetris'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4b94fdfe31a31d33ebd4511a2b1b854eb6a5f986
[INFO] checking Nyanguy/rust.tetris against try#a7a572ce3edd6d476191fbfe92c9c1986e009b34 for pr-87190-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNyanguy%2Frust.tetris" "/workspace/builds/worker-1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Nyanguy/rust.tetris on toolchain a7a572ce3edd6d476191fbfe92c9c1986e009b34
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Nyanguy/rust.tetris
[INFO] finished tweaking git repo https://github.com/Nyanguy/rust.tetris
[INFO] tweaked toml for git repo https://github.com/Nyanguy/rust.tetris written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/Nyanguy/rust.tetris already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b769436e8c10310866b9d18cf8e99d292dc6069108dfe7f231a26128336fdd36
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "b769436e8c10310866b9d18cf8e99d292dc6069108dfe7f231a26128336fdd36", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b769436e8c10310866b9d18cf8e99d292dc6069108dfe7f231a26128336fdd36", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b769436e8c10310866b9d18cf8e99d292dc6069108dfe7f231a26128336fdd36", kill_on_drop: false }`
[INFO] [stdout] b769436e8c10310866b9d18cf8e99d292dc6069108dfe7f231a26128336fdd36
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 75f54eff5a3cbad292938249eed48039991d2e5aacd637b05536a6f5613cc9cb
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "75f54eff5a3cbad292938249eed48039991d2e5aacd637b05536a6f5613cc9cb", kill_on_drop: false }`
[INFO] [stderr] Copying to /tmp/fixit
[INFO] [stderr] Running `cargo fix --edition`
[INFO] [stderr]    Compiling libc v0.2.68
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling sdl2 v0.33.0
[INFO] [stderr]    Compiling sdl2-sys v0.33.0
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking rust_tetris v0.2.0 (/tmp/fixit)
[INFO] [stderr]    Migrating src/main.rs from 2018 edition to 2021
[INFO] [stderr]        Fixed src/runtime_logic/menu.rs (4 fixes)
[INFO] [stderr]        Fixed src/main.rs (1 fix)
[INFO] [stderr]        Fixed src/engine/text.rs (1 fix)
[INFO] [stderr]        Fixed src/runtime_logic/field.rs (6 fixes)
[INFO] [stderr]        Fixed src/runtime_logic/tetris.rs (4 fixes)
[INFO] [stdout] warning: unused macro definition
[INFO] [stdout]   --> src/runtime_logic/menu.rs:19:1
[INFO] [stdout]    |
[INFO] [stdout] 19 | / macro_rules! rect(
[INFO] [stdout] 20 | |     ($x:expr, $y:expr, $w:expr, $h:expr) => (
[INFO] [stdout] 21 | |         Rect::new($x as i32, $y as i32, $w as u32, $h as u32)
[INFO] [stdout] 22 | |     )
[INFO] [stdout] 23 | | );
[INFO] [stdout]    | |__^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_macros)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused macro definition
[INFO] [stdout]   --> src/runtime_logic/menu.rs:19:1
[INFO] [stdout]    |
[INFO] [stdout] 19 | / macro_rules! rect(
[INFO] [stdout] 20 | |     ($x:expr, $y:expr, $w:expr, $h:expr) => (
[INFO] [stdout] 21 | |         Rect::new($x as i32, $y as i32, $w as u32, $h as u32)
[INFO] [stdout] 22 | |     )
[INFO] [stdout] 23 | | );
[INFO] [stdout]    | |__^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_macros)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `contents`
[INFO] [stdout]   --> src/engine/text.rs:45:12
[INFO] [stdout]    |
[INFO] [stdout] 45 |     pub fn contents(&self) -> &str {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_color`
[INFO] [stdout]   --> src/engine/text.rs:49:12
[INFO] [stdout]    |
[INFO] [stdout] 49 |     pub fn get_color(&self) -> sdl2::pixels::Color {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `set_hinting`
[INFO] [stdout]   --> src/engine/text.rs:53:12
[INFO] [stdout]    |
[INFO] [stdout] 53 |     pub fn set_hinting(&mut self, hint: sdl2::ttf::Hinting) { self.hint = hint }
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `set_font`
[INFO] [stdout]   --> src/engine/text.rs:55:12
[INFO] [stdout]    |
[INFO] [stdout] 55 |     pub fn set_font(&mut self, font: &str) {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `set_size`
[INFO] [stdout]   --> src/engine/text.rs:59:12
[INFO] [stdout]    |
[INFO] [stdout] 59 |     pub fn set_size(&mut self, size: u16) {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `img_ctx`
[INFO] [stdout]   --> src/engine/render.rs:53:5
[INFO] [stdout]    |
[INFO] [stdout] 53 |     img_ctx: sdl2::image::Sdl2ImageContext
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `set_color`
[INFO] [stdout]   --> src/engine/render.rs:76:12
[INFO] [stdout]    |
[INFO] [stdout] 76 |     pub fn set_color(&mut self, clr: Color) {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_context`
[INFO] [stdout]    --> src/engine/render.rs:115:12
[INFO] [stdout]     |
[INFO] [stdout] 115 |     pub fn get_context(&self) -> &sdl2::Sdl {
[INFO] [stdout]     |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `texture_to_buffer`
[INFO] [stdout]    --> src/engine/render.rs:134:12
[INFO] [stdout]     |
[INFO] [stdout] 134 |     pub fn texture_to_buffer(&mut self, texture: &sdl2::render::Texture, src: Option<Rect>, dst: Option<Rect>) {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `run`
[INFO] [stdout]    --> src/engine/render.rs:138:12
[INFO] [stdout]     |
[INFO] [stdout] 138 |     pub fn run(&mut self) {     
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `save_name`
[INFO] [stdout]   --> src/runtime_logic/menu.rs:25:8
[INFO] [stdout]    |
[INFO] [stdout] 25 | pub fn save_name(_text: &str, _pos_x: u32, _pos_y: u32) {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `id`
[INFO] [stdout]    --> src/runtime_logic/tetromino.rs:111:12
[INFO] [stdout]     |
[INFO] [stdout] 111 |     pub fn id(&self) -> &Shape {
[INFO] [stdout]     |            ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `delete_tile`
[INFO] [stdout]    --> src/runtime_logic/tetromino.rs:221:12
[INFO] [stdout]     |
[INFO] [stdout] 221 |     pub fn delete_tile(&mut self, t_pos: (u32,u32)) {
[INFO] [stdout]     |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `width`
[INFO] [stdout]   --> src/runtime_logic/field.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 |     width: usize,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `height`
[INFO] [stdout]   --> src/runtime_logic/field.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 18 |     height: usize,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `inc_score`
[INFO] [stdout]   --> src/runtime_logic/field.rs:48:12
[INFO] [stdout]    |
[INFO] [stdout] 48 |     pub fn inc_score(&mut self, n: u16) {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `next_lvl`
[INFO] [stdout]   --> src/runtime_logic/field.rs:58:12
[INFO] [stdout]    |
[INFO] [stdout] 58 |     pub fn next_lvl(&mut self) -> f32 {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `check_lines`
[INFO] [stdout]   --> src/runtime_logic/field.rs:76:12
[INFO] [stdout]    |
[INFO] [stdout] 76 |     pub fn check_lines(&mut self, _n: u16, _lb: u32, _rb: u32, _f: u32) {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]  --> src/main.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |     menu::run();
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]   = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/runtime_logic/tetris.rs:104:9
[INFO] [stdout]     |
[INFO] [stdout] 104 |         window.draw_line(WHITE, (0, H_UI), (window.width as i32, H_UI));
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/runtime_logic/tetris.rs:105:9
[INFO] [stdout]     |
[INFO] [stdout] 105 |         window.draw_line(WHITE, (145, 0), (145, H_UI));
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/runtime_logic/tetris.rs:106:9
[INFO] [stdout]     |
[INFO] [stdout] 106 |         window.draw_line(WHITE, (border_left as i32, ui_bottom_offset), (border_left as i32, H_UI));
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/runtime_logic/tetris.rs:107:9
[INFO] [stdout]     |
[INFO] [stdout] 107 |         window.draw_line(WHITE, (border_right as i32, ui_bottom_offset), (border_right as i32, H_UI));
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/runtime_logic/tetris.rs:108:9
[INFO] [stdout]     |
[INFO] [stdout] 108 |         window.draw_line(WHITE, (120, ui_bottom_offset), (120, window.height as i32));
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/runtime_logic/tetris.rs:109:9
[INFO] [stdout]     |
[INFO] [stdout] 109 |         window.draw_line(WHITE, (170, ui_bottom_offset), (170, window.height as i32));
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/runtime_logic/tetris.rs:110:9
[INFO] [stdout]     |
[INFO] [stdout] 110 |         window.draw_line(WHITE, (0, ui_bottom_offset), (window.width as i32, ui_bottom_offset));
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/runtime_logic/field.rs:148:13
[INFO] [stdout]     |
[INFO] [stdout] 148 |             draw_fn(window, *kv.0, *kv.1, 18);
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `contents`
[INFO] [stdout]   --> src/engine/text.rs:45:12
[INFO] [stdout]    |
[INFO] [stdout] 45 |     pub fn contents(&self) -> &str {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_color`
[INFO] [stdout]   --> src/engine/text.rs:49:12
[INFO] [stdout]    |
[INFO] [stdout] 49 |     pub fn get_color(&self) -> sdl2::pixels::Color {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `set_hinting`
[INFO] [stdout]   --> src/engine/text.rs:53:12
[INFO] [stdout]    |
[INFO] [stdout] 53 |     pub fn set_hinting(&mut self, hint: sdl2::ttf::Hinting) { self.hint = hint }
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `set_font`
[INFO] [stdout]   --> src/engine/text.rs:55:12
[INFO] [stdout]    |
[INFO] [stdout] 55 |     pub fn set_font(&mut self, font: &str) {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `set_size`
[INFO] [stdout]   --> src/engine/text.rs:59:12
[INFO] [stdout]    |
[INFO] [stdout] 59 |     pub fn set_size(&mut self, size: u16) {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `img_ctx`
[INFO] [stdout]   --> src/engine/render.rs:53:5
[INFO] [stdout]    |
[INFO] [stdout] 53 |     img_ctx: sdl2::image::Sdl2ImageContext
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `set_color`
[INFO] [stdout]   --> src/engine/render.rs:76:12
[INFO] [stdout]    |
[INFO] [stdout] 76 |     pub fn set_color(&mut self, clr: Color) {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_context`
[INFO] [stdout]    --> src/engine/render.rs:115:12
[INFO] [stdout]     |
[INFO] [stdout] 115 |     pub fn get_context(&self) -> &sdl2::Sdl {
[INFO] [stdout]     |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `texture_to_buffer`
[INFO] [stdout]    --> src/engine/render.rs:134:12
[INFO] [stdout]     |
[INFO] [stdout] 134 |     pub fn texture_to_buffer(&mut self, texture: &sdl2::render::Texture, src: Option<Rect>, dst: Option<Rect>) {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `run`
[INFO] [stdout]    --> src/engine/render.rs:138:12
[INFO] [stdout]     |
[INFO] [stdout] 138 |     pub fn run(&mut self) {     
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `save_name`
[INFO] [stdout]   --> src/runtime_logic/menu.rs:25:8
[INFO] [stdout]    |
[INFO] [stdout] 25 | pub fn save_name(_text: &str, _pos_x: u32, _pos_y: u32) {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `id`
[INFO] [stdout]    --> src/runtime_logic/tetromino.rs:111:12
[INFO] [stdout]     |
[INFO] [stdout] 111 |     pub fn id(&self) -> &Shape {
[INFO] [stdout]     |            ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `delete_tile`
[INFO] [stdout]    --> src/runtime_logic/tetromino.rs:221:12
[INFO] [stdout]     |
[INFO] [stdout] 221 |     pub fn delete_tile(&mut self, t_pos: (u32,u32)) {
[INFO] [stdout]     |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `width`
[INFO] [stdout]   --> src/runtime_logic/field.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 |     width: usize,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `height`
[INFO] [stdout]   --> src/runtime_logic/field.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 18 |     height: usize,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `inc_score`
[INFO] [stdout]   --> src/runtime_logic/field.rs:48:12
[INFO] [stdout]    |
[INFO] [stdout] 48 |     pub fn inc_score(&mut self, n: u16) {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `next_lvl`
[INFO] [stdout]   --> src/runtime_logic/field.rs:58:12
[INFO] [stdout]    |
[INFO] [stdout] 58 |     pub fn next_lvl(&mut self) -> f32 {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `check_lines`
[INFO] [stdout]   --> src/runtime_logic/field.rs:76:12
[INFO] [stdout]    |
[INFO] [stdout] 76 |     pub fn check_lines(&mut self, _n: u16, _lb: u32, _rb: u32, _f: u32) {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]  --> src/main.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |     menu::run();
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]   = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/runtime_logic/tetris.rs:104:9
[INFO] [stdout]     |
[INFO] [stdout] 104 |         window.draw_line(WHITE, (0, H_UI), (window.width as i32, H_UI));
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/runtime_logic/tetris.rs:105:9
[INFO] [stdout]     |
[INFO] [stdout] 105 |         window.draw_line(WHITE, (145, 0), (145, H_UI));
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/runtime_logic/tetris.rs:106:9
[INFO] [stdout]     |
[INFO] [stdout] 106 |         window.draw_line(WHITE, (border_left as i32, ui_bottom_offset), (border_left as i32, H_UI));
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/runtime_logic/tetris.rs:107:9
[INFO] [stdout]     |
[INFO] [stdout] 107 |         window.draw_line(WHITE, (border_right as i32, ui_bottom_offset), (border_right as i32, H_UI));
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/runtime_logic/tetris.rs:108:9
[INFO] [stdout]     |
[INFO] [stdout] 108 |         window.draw_line(WHITE, (120, ui_bottom_offset), (120, window.height as i32));
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/runtime_logic/tetris.rs:109:9
[INFO] [stdout]     |
[INFO] [stdout] 109 |         window.draw_line(WHITE, (170, ui_bottom_offset), (170, window.height as i32));
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/runtime_logic/tetris.rs:110:9
[INFO] [stdout]     |
[INFO] [stdout] 110 |         window.draw_line(WHITE, (0, ui_bottom_offset), (window.width as i32, ui_bottom_offset));
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/runtime_logic/field.rs:148:13
[INFO] [stdout]     |
[INFO] [stdout] 148 |             draw_fn(window, *kv.0, *kv.1, 18);
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 28 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 28 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.47s
[INFO] [stderr] Running `cargo check` to verify 2021
[INFO] [stderr]     Checking rust_tetris v0.2.0 (/tmp/fixit)
[INFO] [stdout] warning: unused macro definition
[INFO] [stdout]   --> src/runtime_logic/menu.rs:19:1
[INFO] [stdout]    |
[INFO] [stdout] 19 | / macro_rules! rect(
[INFO] [stdout] 20 | |     ($x:expr, $y:expr, $w:expr, $h:expr) => (
[INFO] [stdout] 21 | |         Rect::new($x as i32, $y as i32, $w as u32, $h as u32)
[INFO] [stdout] 22 | |     )
[INFO] [stdout] 23 | | );
[INFO] [stdout]    | |__^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_macros)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused macro definition
[INFO] [stdout]   --> src/runtime_logic/menu.rs:19:1
[INFO] [stdout]    |
[INFO] [stdout] 19 | / macro_rules! rect(
[INFO] [stdout] 20 | |     ($x:expr, $y:expr, $w:expr, $h:expr) => (
[INFO] [stdout] 21 | |         Rect::new($x as i32, $y as i32, $w as u32, $h as u32)
[INFO] [stdout] 22 | |     )
[INFO] [stdout] 23 | | );
[INFO] [stdout]    | |__^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_macros)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `contents`
[INFO] [stdout]   --> src/engine/text.rs:45:12
[INFO] [stdout]    |
[INFO] [stdout] 45 |     pub fn contents(&self) -> &str {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_color`
[INFO] [stdout]   --> src/engine/text.rs:49:12
[INFO] [stdout]    |
[INFO] [stdout] 49 |     pub fn get_color(&self) -> sdl2::pixels::Color {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `set_hinting`
[INFO] [stdout]   --> src/engine/text.rs:53:12
[INFO] [stdout]    |
[INFO] [stdout] 53 |     pub fn set_hinting(&mut self, hint: sdl2::ttf::Hinting) { self.hint = hint }
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `set_font`
[INFO] [stdout]   --> src/engine/text.rs:55:12
[INFO] [stdout]    |
[INFO] [stdout] 55 |     pub fn set_font(&mut self, font: &str) {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `set_size`
[INFO] [stdout]   --> src/engine/text.rs:59:12
[INFO] [stdout]    |
[INFO] [stdout] 59 |     pub fn set_size(&mut self, size: u16) {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `img_ctx`
[INFO] [stdout]   --> src/engine/render.rs:53:5
[INFO] [stdout]    |
[INFO] [stdout] 53 |     img_ctx: sdl2::image::Sdl2ImageContext
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `set_color`
[INFO] [stdout]   --> src/engine/render.rs:76:12
[INFO] [stdout]    |
[INFO] [stdout] 76 |     pub fn set_color(&mut self, clr: Color) {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_context`
[INFO] [stdout]    --> src/engine/render.rs:115:12
[INFO] [stdout]     |
[INFO] [stdout] 115 |     pub fn get_context(&self) -> &sdl2::Sdl {
[INFO] [stdout]     |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `texture_to_buffer`
[INFO] [stdout]    --> src/engine/render.rs:134:12
[INFO] [stdout]     |
[INFO] [stdout] 134 |     pub fn texture_to_buffer(&mut self, texture: &sdl2::render::Texture, src: Option<Rect>, dst: Option<Rect>) {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `run`
[INFO] [stdout]    --> src/engine/render.rs:138:12
[INFO] [stdout]     |
[INFO] [stdout] 138 |     pub fn run(&mut self) {     
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `save_name`
[INFO] [stdout]   --> src/runtime_logic/menu.rs:25:8
[INFO] [stdout]    |
[INFO] [stdout] 25 | pub fn save_name(_text: &str, _pos_x: u32, _pos_y: u32) {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `id`
[INFO] [stdout]    --> src/runtime_logic/tetromino.rs:111:12
[INFO] [stdout]     |
[INFO] [stdout] 111 |     pub fn id(&self) -> &Shape {
[INFO] [stdout]     |            ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `delete_tile`
[INFO] [stdout]    --> src/runtime_logic/tetromino.rs:221:12
[INFO] [stdout]     |
[INFO] [stdout] 221 |     pub fn delete_tile(&mut self, t_pos: (u32,u32)) {
[INFO] [stdout]     |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `width`
[INFO] [stdout]   --> src/runtime_logic/field.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 |     width: usize,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `height`
[INFO] [stdout]   --> src/runtime_logic/field.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 18 |     height: usize,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `inc_score`
[INFO] [stdout]   --> src/runtime_logic/field.rs:48:12
[INFO] [stdout]    |
[INFO] [stdout] 48 |     pub fn inc_score(&mut self, n: u16) {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `next_lvl`
[INFO] [stdout]   --> src/runtime_logic/field.rs:58:12
[INFO] [stdout]    |
[INFO] [stdout] 58 |     pub fn next_lvl(&mut self) -> f32 {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `check_lines`
[INFO] [stdout]   --> src/runtime_logic/field.rs:76:12
[INFO] [stdout]    |
[INFO] [stdout] 76 |     pub fn check_lines(&mut self, _n: u16, _lb: u32, _rb: u32, _f: u32) {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]  --> src/main.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |     menu::run();
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]   = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/runtime_logic/tetris.rs:104:9
[INFO] [stdout]     |
[INFO] [stdout] 104 |         window.draw_line(WHITE, (0, H_UI), (window.width as i32, H_UI));
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/runtime_logic/tetris.rs:105:9
[INFO] [stdout]     |
[INFO] [stdout] 105 |         window.draw_line(WHITE, (145, 0), (145, H_UI));
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/runtime_logic/tetris.rs:106:9
[INFO] [stdout]     |
[INFO] [stdout] 106 |         window.draw_line(WHITE, (border_left as i32, ui_bottom_offset), (border_left as i32, H_UI));
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/runtime_logic/tetris.rs:107:9
[INFO] [stdout]     |
[INFO] [stdout] 107 |         window.draw_line(WHITE, (border_right as i32, ui_bottom_offset), (border_right as i32, H_UI));
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/runtime_logic/tetris.rs:108:9
[INFO] [stdout]     |
[INFO] [stdout] 108 |         window.draw_line(WHITE, (120, ui_bottom_offset), (120, window.height as i32));
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/runtime_logic/tetris.rs:109:9
[INFO] [stdout]     |
[INFO] [stdout] 109 |         window.draw_line(WHITE, (170, ui_bottom_offset), (170, window.height as i32));
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/runtime_logic/tetris.rs:110:9
[INFO] [stdout]     |
[INFO] [stdout] 110 |         window.draw_line(WHITE, (0, ui_bottom_offset), (window.width as i32, ui_bottom_offset));
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/runtime_logic/field.rs:148:13
[INFO] [stdout]     |
[INFO] [stdout] 148 |             draw_fn(window, *kv.0, *kv.1, 18);
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `contents`
[INFO] [stdout]   --> src/engine/text.rs:45:12
[INFO] [stdout]    |
[INFO] [stdout] 45 |     pub fn contents(&self) -> &str {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_color`
[INFO] [stdout]   --> src/engine/text.rs:49:12
[INFO] [stdout]    |
[INFO] [stdout] 49 |     pub fn get_color(&self) -> sdl2::pixels::Color {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `set_hinting`
[INFO] [stdout]   --> src/engine/text.rs:53:12
[INFO] [stdout]    |
[INFO] [stdout] 53 |     pub fn set_hinting(&mut self, hint: sdl2::ttf::Hinting) { self.hint = hint }
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `set_font`
[INFO] [stdout]   --> src/engine/text.rs:55:12
[INFO] [stdout]    |
[INFO] [stdout] 55 |     pub fn set_font(&mut self, font: &str) {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `set_size`
[INFO] [stdout]   --> src/engine/text.rs:59:12
[INFO] [stdout]    |
[INFO] [stdout] 59 |     pub fn set_size(&mut self, size: u16) {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `img_ctx`
[INFO] [stdout]   --> src/engine/render.rs:53:5
[INFO] [stdout]    |
[INFO] [stdout] 53 |     img_ctx: sdl2::image::Sdl2ImageContext
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `set_color`
[INFO] [stdout]   --> src/engine/render.rs:76:12
[INFO] [stdout]    |
[INFO] [stdout] 76 |     pub fn set_color(&mut self, clr: Color) {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_context`
[INFO] [stdout]    --> src/engine/render.rs:115:12
[INFO] [stdout]     |
[INFO] [stdout] 115 |     pub fn get_context(&self) -> &sdl2::Sdl {
[INFO] [stdout]     |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `texture_to_buffer`
[INFO] [stdout]    --> src/engine/render.rs:134:12
[INFO] [stdout]     |
[INFO] [stdout] 134 |     pub fn texture_to_buffer(&mut self, texture: &sdl2::render::Texture, src: Option<Rect>, dst: Option<Rect>) {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `run`
[INFO] [stdout]    --> src/engine/render.rs:138:12
[INFO] [stdout]     |
[INFO] [stdout] 138 |     pub fn run(&mut self) {     
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `save_name`
[INFO] [stdout]   --> src/runtime_logic/menu.rs:25:8
[INFO] [stdout]    |
[INFO] [stdout] 25 | pub fn save_name(_text: &str, _pos_x: u32, _pos_y: u32) {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `id`
[INFO] [stdout]    --> src/runtime_logic/tetromino.rs:111:12
[INFO] [stdout]     |
[INFO] [stdout] 111 |     pub fn id(&self) -> &Shape {
[INFO] [stdout]     |            ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `delete_tile`
[INFO] [stdout]    --> src/runtime_logic/tetromino.rs:221:12
[INFO] [stdout]     |
[INFO] [stdout] 221 |     pub fn delete_tile(&mut self, t_pos: (u32,u32)) {
[INFO] [stdout]     |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `width`
[INFO] [stdout]   --> src/runtime_logic/field.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 |     width: usize,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `height`
[INFO] [stdout]   --> src/runtime_logic/field.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 18 |     height: usize,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `inc_score`
[INFO] [stdout]   --> src/runtime_logic/field.rs:48:12
[INFO] [stdout]    |
[INFO] [stdout] 48 |     pub fn inc_score(&mut self, n: u16) {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `next_lvl`
[INFO] [stdout]   --> src/runtime_logic/field.rs:58:12
[INFO] [stdout]    |
[INFO] [stdout] 58 |     pub fn next_lvl(&mut self) -> f32 {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `check_lines`
[INFO] [stdout]   --> src/runtime_logic/field.rs:76:12
[INFO] [stdout]    |
[INFO] [stdout] 76 |     pub fn check_lines(&mut self, _n: u16, _lb: u32, _rb: u32, _f: u32) {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 28 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]  --> src/main.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |     menu::run();
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]   = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/runtime_logic/tetris.rs:104:9
[INFO] [stdout]     |
[INFO] [stdout] 104 |         window.draw_line(WHITE, (0, H_UI), (window.width as i32, H_UI));
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/runtime_logic/tetris.rs:105:9
[INFO] [stdout]     |
[INFO] [stdout] 105 |         window.draw_line(WHITE, (145, 0), (145, H_UI));
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/runtime_logic/tetris.rs:106:9
[INFO] [stdout]     |
[INFO] [stdout] 106 |         window.draw_line(WHITE, (border_left as i32, ui_bottom_offset), (border_left as i32, H_UI));
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/runtime_logic/tetris.rs:107:9
[INFO] [stdout]     |
[INFO] [stdout] 107 |         window.draw_line(WHITE, (border_right as i32, ui_bottom_offset), (border_right as i32, H_UI));
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/runtime_logic/tetris.rs:108:9
[INFO] [stdout]     |
[INFO] [stdout] 108 |         window.draw_line(WHITE, (120, ui_bottom_offset), (120, window.height as i32));
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/runtime_logic/tetris.rs:109:9
[INFO] [stdout]     |
[INFO] [stdout] 109 |         window.draw_line(WHITE, (170, ui_bottom_offset), (170, window.height as i32));
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/runtime_logic/tetris.rs:110:9
[INFO] [stdout]     |
[INFO] [stdout] 110 |         window.draw_line(WHITE, (0, ui_bottom_offset), (window.width as i32, ui_bottom_offset));
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/runtime_logic/field.rs:148:13
[INFO] [stdout]     |
[INFO] [stdout] 148 |             draw_fn(window, *kv.0, *kv.1, 18);
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 28 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.52s
[INFO] running `Command { std: "docker" "inspect" "75f54eff5a3cbad292938249eed48039991d2e5aacd637b05536a6f5613cc9cb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "75f54eff5a3cbad292938249eed48039991d2e5aacd637b05536a6f5613cc9cb", kill_on_drop: false }`
[INFO] [stdout] 75f54eff5a3cbad292938249eed48039991d2e5aacd637b05536a6f5613cc9cb