[INFO] cloning repository https://github.com/Tam1SH/simple2d_rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Tam1SH/simple2d_rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTam1SH%2Fsimple2d_rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTam1SH%2Fsimple2d_rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] eff519e3938664d647cf84059e38eba2fe31dcca
[INFO] checking Tam1SH/simple2d_rust against try#b1f2594eac607c1f051534800237eeedb5590a49 for pr-139493-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTam1SH%2Fsimple2d_rust" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/Tam1SH/simple2d_rust
[INFO] finished tweaking git repo https://github.com/Tam1SH/simple2d_rust
[INFO] tweaked toml for git repo https://github.com/Tam1SH/simple2d_rust written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Tam1SH/simple2d_rust on toolchain b1f2594eac607c1f051534800237eeedb5590a49
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b1f2594eac607c1f051534800237eeedb5590a49" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/Tam1SH/simple2d_rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b1f2594eac607c1f051534800237eeedb5590a49" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "rm" "-f" "52b570ed0ea3a796ff9ef623842f900f59f9357934866e497ce7b64c2fc08584", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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" "RUSTDOCFLAGS=--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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+b1f2594eac607c1f051534800237eeedb5590a49" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f6cf1f48dcb99c8a7f66a195bf73a74f285d5c49474b0932e51de8a175c7794d
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[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]    Compiling proc-macro2 v1.0.40
[INFO] [stderr]     Checking once_cell v1.12.0
[INFO] [stderr]    Compiling quote v1.0.20
[INFO] [stderr]    Compiling pkg-config v0.3.25
[INFO] [stderr]    Compiling unicode-ident v1.0.1
[INFO] [stderr]    Compiling xml-rs v0.8.4
[INFO] [stderr]     Checking libloading v0.7.3
[INFO] [stderr]    Compiling crossbeam-utils v0.8.11
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.10
[INFO] [stderr]     Checking scoped-tls v1.0.0
[INFO] [stderr]    Compiling rayon-core v1.9.3
[INFO] [stderr]    Compiling cc v1.0.73
[INFO] [stderr]    Compiling rayon v1.5.3
[INFO] [stderr]     Checking either v1.7.0
[INFO] [stderr]     Checking dlib v0.5.0
[INFO] [stderr]     Checking nom v7.1.1
[INFO] [stderr]    Compiling wayland-sys v0.29.4
[INFO] [stderr]    Compiling x11-dl v2.19.1
[INFO] [stderr]     Checking crossbeam-channel v0.5.6
[INFO] [stderr]     Checking crossbeam-deque v0.8.2
[INFO] [stderr]    Compiling minifb v0.23.0
[INFO] [stderr]    Compiling wayland-scanner v0.29.4
[INFO] [stderr]     Checking nix v0.22.3
[INFO] [stderr]     Checking num_cpus v1.13.1
[INFO] [stderr]     Checking tempfile v3.3.0
[INFO] [stderr]     Checking xcursor v0.3.4
[INFO] [stderr]    Compiling wayland-client v0.29.4
[INFO] [stderr]    Compiling wayland-protocols v0.29.4
[INFO] [stderr]     Checking wayland-commons v0.29.4
[INFO] [stderr]     Checking wayland-cursor v0.29.4
[INFO] [stderr]     Checking simple2d_rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: `extern` declarations without an explicit ABI are deprecated
[INFO] [stdout]   --> src/lib.rs:89:65
[INFO] [stdout]    |
[INFO] [stdout] 89 | pub extern "C" fn subscribe_on_draw(window: *mut c_void, func : extern fn() -> ()) -> *mut c_void {
[INFO] [stdout]    |                                                                 ^^^^^^ help: explicitly specify the "C" ABI: `extern "C"`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(missing_abi)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` declarations without an explicit ABI are deprecated
[INFO] [stdout]   --> src/lib.rs:89:65
[INFO] [stdout]    |
[INFO] [stdout] 89 | pub extern "C" fn subscribe_on_draw(window: *mut c_void, func : extern fn() -> ()) -> *mut c_void {
[INFO] [stdout]    |                                                                 ^^^^^^ help: explicitly specify the "C" ABI: `extern "C"`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(missing_abi)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `surface`
[INFO] [stdout]   --> src/main.rs:54:50
[INFO] [stdout]    |
[INFO] [stdout] 54 |     window.subscribe_on_draw(Rc::new(Box::new(move |surface| {
[INFO] [stdout]    |                                                     ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_surface`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `size`
[INFO] [stdout]   --> src/main.rs:38:6
[INFO] [stdout]    |
[INFO] [stdout] 38 |     let size = window.get_screen_size();
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_size`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/main.rs:41:6
[INFO] [stdout]    |
[INFO] [stdout] 41 |     for i in 0..1 {
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `from_u8_rgb` is never used
[INFO] [stdout]   --> src/main.rs:15:4
[INFO] [stdout]    |
[INFO] [stdout] 15 | fn from_u8_rgb(r: u8, g: u8, b: u8) -> u32 {
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `move_to`, `set_color`, `get_color`, and `get_area` are never used
[INFO] [stdout]   --> src/simple2d/shape.rs:6:5
[INFO] [stdout]    |
[INFO] [stdout]  4 | pub trait Shape {
[INFO] [stdout]    |           ----- methods in this trait
[INFO] [stdout]  5 |     fn draw(&self, surface: &mut DrawSurface);
[INFO] [stdout]  6 |     fn move_to(&mut self, point : Point);
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  9 |     fn set_color(&mut self, color : u32);
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 10 |     fn get_color(&self) -> u32;
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 11 |     fn get_area(&self) -> &DrawingArea;
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `get_buffer`, `get_buffer_index`, `get_buffer_index_mut`, and `get_buffers_mut` are never used
[INFO] [stdout]   --> src/simple2d/draw_surface.rs:39:9
[INFO] [stdout]    |
[INFO] [stdout]  8 | impl DrawSurface {
[INFO] [stdout]    | ---------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 39 |     pub fn get_buffer(&self) -> &Vec<u32>  {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 47 |     pub fn get_buffer_index(&self) -> &Vec<u32> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 51 |     pub fn get_buffer_index_mut(&mut self) -> &mut Vec<u32> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 54 |     pub fn get_buffers_mut(&mut self) -> &mut (Vec<u32>, Vec<u32>) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Absolute` is never constructed
[INFO] [stdout]   --> src/simple2d/drawing_area.rs:10:12
[INFO] [stdout]    |
[INFO] [stdout]  9 | pub enum Positioning {
[INFO] [stdout]    |          ----------- variant in this enum
[INFO] [stdout] 10 |     Relative, Absolute
[INFO] [stdout]    |               ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple methods are never used
[INFO] [stdout]    --> src/simple2d/drawing_area.rs:14:9
[INFO] [stdout]     |
[INFO] [stdout]  12 | impl DrawingArea {
[INFO] [stdout]     | ---------------- methods in this implementation
[INFO] [stdout]  13 |
[INFO] [stdout]  14 |     pub fn get_left_top(&self, positioning : Positioning) -> Point {
[INFO] [stdout]     |            ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  62 |     pub fn draw_from_buffer(&self, drawing_area : Rect, draw_surface : &mut DrawSurface, buffer : &Vec<u32>) {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  81 |     pub fn draw<T>(&self, drawing_area : Rect, draw_surface : &mut DrawSurface, f: &T)
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 106 |     pub fn get_area(&self) -> Rect {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 125 |     pub fn calc_bounds(&self, drawing_area_size : Rect) -> Rect {
[INFO] [stdout]     |            ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 171 |     pub fn resize(&mut self, new_size : Rect) {
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 175 |     pub fn move_to(&mut self, new_pos : Position) {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `unsubscribe_on_draw` is never used
[INFO] [stdout]   --> src/simple2d/drawing_window.rs:80:9
[INFO] [stdout]    |
[INFO] [stdout] 20 | impl DrawingWindow {
[INFO] [stdout]    | ------------------ method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 80 |     pub fn unsubscribe_on_draw(&mut self, o : Rc<Box<dyn Fn(&mut DrawSurface)>>) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `PositionFrom2` is never used
[INFO] [stdout]   --> src/simple2d/position.rs:26:11
[INFO] [stdout]    |
[INFO] [stdout] 26 | pub trait PositionFrom2<T, U> {
[INFO] [stdout]    |           ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `from_point` is never used
[INFO] [stdout]   --> src/simple2d/rect.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout]  9 | impl Rect {
[INFO] [stdout]    | --------- associated function in this implementation
[INFO] [stdout] 10 |     pub fn new(x : usize, y : usize) -> Rect { Rect { x, y } }
[INFO] [stdout] 11 |     pub fn from_point(point : Point) -> Rect {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Rectangle` is never constructed
[INFO] [stdout]  --> src/simple2d/rectangle.rs:8:12
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub struct Rectangle {
[INFO] [stdout]   |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `set_size` and `new` are never used
[INFO] [stdout]   --> src/simple2d/rectangle.rs:15:9
[INFO] [stdout]    |
[INFO] [stdout] 13 | impl Rectangle { 
[INFO] [stdout]    | -------------- associated items in this implementation
[INFO] [stdout] 14 |
[INFO] [stdout] 15 |     pub fn set_size(&mut self, size : Rect) { 
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 20 |     pub fn new(pos: Position, size : Rect, color : Option<u32>) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `surface`
[INFO] [stdout]   --> src/main.rs:54:50
[INFO] [stdout]    |
[INFO] [stdout] 54 |     window.subscribe_on_draw(Rc::new(Box::new(move |surface| {
[INFO] [stdout]    |                                                     ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_surface`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `size`
[INFO] [stdout]   --> src/main.rs:38:6
[INFO] [stdout]    |
[INFO] [stdout] 38 |     let size = window.get_screen_size();
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_size`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/main.rs:41:6
[INFO] [stdout]    |
[INFO] [stdout] 41 |     for i in 0..1 {
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `from_u8_rgb` is never used
[INFO] [stdout]   --> src/main.rs:15:4
[INFO] [stdout]    |
[INFO] [stdout] 15 | fn from_u8_rgb(r: u8, g: u8, b: u8) -> u32 {
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `move_to`, `set_color`, `get_color`, and `get_area` are never used
[INFO] [stdout]   --> src/simple2d/shape.rs:6:5
[INFO] [stdout]    |
[INFO] [stdout]  4 | pub trait Shape {
[INFO] [stdout]    |           ----- methods in this trait
[INFO] [stdout]  5 |     fn draw(&self, surface: &mut DrawSurface);
[INFO] [stdout]  6 |     fn move_to(&mut self, point : Point);
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  9 |     fn set_color(&mut self, color : u32);
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 10 |     fn get_color(&self) -> u32;
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 11 |     fn get_area(&self) -> &DrawingArea;
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `get_buffer`, `get_buffer_index`, `get_buffer_index_mut`, and `get_buffers_mut` are never used
[INFO] [stdout]   --> src/simple2d/draw_surface.rs:39:9
[INFO] [stdout]    |
[INFO] [stdout]  8 | impl DrawSurface {
[INFO] [stdout]    | ---------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 39 |     pub fn get_buffer(&self) -> &Vec<u32>  {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 47 |     pub fn get_buffer_index(&self) -> &Vec<u32> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 51 |     pub fn get_buffer_index_mut(&mut self) -> &mut Vec<u32> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 54 |     pub fn get_buffers_mut(&mut self) -> &mut (Vec<u32>, Vec<u32>) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Absolute` is never constructed
[INFO] [stdout]   --> src/simple2d/drawing_area.rs:10:12
[INFO] [stdout]    |
[INFO] [stdout]  9 | pub enum Positioning {
[INFO] [stdout]    |          ----------- variant in this enum
[INFO] [stdout] 10 |     Relative, Absolute
[INFO] [stdout]    |               ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple methods are never used
[INFO] [stdout]    --> src/simple2d/drawing_area.rs:14:9
[INFO] [stdout]     |
[INFO] [stdout]  12 | impl DrawingArea {
[INFO] [stdout]     | ---------------- methods in this implementation
[INFO] [stdout]  13 |
[INFO] [stdout]  14 |     pub fn get_left_top(&self, positioning : Positioning) -> Point {
[INFO] [stdout]     |            ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  62 |     pub fn draw_from_buffer(&self, drawing_area : Rect, draw_surface : &mut DrawSurface, buffer : &Vec<u32>) {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  81 |     pub fn draw<T>(&self, drawing_area : Rect, draw_surface : &mut DrawSurface, f: &T)
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 106 |     pub fn get_area(&self) -> Rect {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 125 |     pub fn calc_bounds(&self, drawing_area_size : Rect) -> Rect {
[INFO] [stdout]     |            ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 171 |     pub fn resize(&mut self, new_size : Rect) {
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 175 |     pub fn move_to(&mut self, new_pos : Position) {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `unsubscribe_on_draw` is never used
[INFO] [stdout]   --> src/simple2d/drawing_window.rs:80:9
[INFO] [stdout]    |
[INFO] [stdout] 20 | impl DrawingWindow {
[INFO] [stdout]    | ------------------ method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 80 |     pub fn unsubscribe_on_draw(&mut self, o : Rc<Box<dyn Fn(&mut DrawSurface)>>) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `PositionFrom2` is never used
[INFO] [stdout]   --> src/simple2d/position.rs:26:11
[INFO] [stdout]    |
[INFO] [stdout] 26 | pub trait PositionFrom2<T, U> {
[INFO] [stdout]    |           ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `from_point` is never used
[INFO] [stdout]   --> src/simple2d/rect.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout]  9 | impl Rect {
[INFO] [stdout]    | --------- associated function in this implementation
[INFO] [stdout] 10 |     pub fn new(x : usize, y : usize) -> Rect { Rect { x, y } }
[INFO] [stdout] 11 |     pub fn from_point(point : Point) -> Rect {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Rectangle` is never constructed
[INFO] [stdout]  --> src/simple2d/rectangle.rs:8:12
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub struct Rectangle {
[INFO] [stdout]   |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `set_size` and `new` are never used
[INFO] [stdout]   --> src/simple2d/rectangle.rs:15:9
[INFO] [stdout]    |
[INFO] [stdout] 13 | impl Rectangle { 
[INFO] [stdout]    | -------------- associated items in this implementation
[INFO] [stdout] 14 |
[INFO] [stdout] 15 |     pub fn set_size(&mut self, size : Rect) { 
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 20 |     pub fn new(pos: Position, size : Rect, color : Option<u32>) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `surface`
[INFO] [stdout]   --> src/lib.rs:92:74
[INFO] [stdout]    |
[INFO] [stdout] 92 |     let on_draw: Rc<Box<dyn Fn(&mut DrawSurface)>> = Rc::new(Box::new(move |surface| {
[INFO] [stdout]    |                                                                             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_surface`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `move_to`, `set_position`, `get_position`, `set_color`, `get_color`, and `get_area` are never used
[INFO] [stdout]   --> src/simple2d/shape.rs:6:5
[INFO] [stdout]    |
[INFO] [stdout]  4 | pub trait Shape {
[INFO] [stdout]    |           ----- methods in this trait
[INFO] [stdout]  5 |     fn draw(&self, surface: &mut DrawSurface);
[INFO] [stdout]  6 |     fn move_to(&mut self, point : Point);
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout]  7 |     fn set_position(&mut self, pos: Position);
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout]  8 |     fn get_position(&self) -> Position;
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout]  9 |     fn set_color(&mut self, color : u32);
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 10 |     fn get_color(&self) -> u32;
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 11 |     fn get_area(&self) -> &DrawingArea;
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `set_pixel`, `get_buffer`, `get_buffer_index`, and `get_buffer_index_mut` are never used
[INFO] [stdout]   --> src/simple2d/draw_surface.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout]  8 | impl DrawSurface {
[INFO] [stdout]    | ---------------- methods in this implementation
[INFO] [stdout]  9 |
[INFO] [stdout] 10 |     pub fn set_pixel(&mut self, color : u32, x : isize, y : isize) {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 39 |     pub fn get_buffer(&self) -> &Vec<u32>  {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 47 |     pub fn get_buffer_index(&self) -> &Vec<u32> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 51 |     pub fn get_buffer_index_mut(&mut self) -> &mut Vec<u32> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Relative` is never constructed
[INFO] [stdout]   --> src/simple2d/drawing_area.rs:10:2
[INFO] [stdout]    |
[INFO] [stdout]  9 | pub enum Positioning {
[INFO] [stdout]    |          ----------- variant in this enum
[INFO] [stdout] 10 |     Relative, Absolute
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `draw_from_buffer`, `set_position`, `get_area`, `get_position`, `resize`, and `move_to` are never used
[INFO] [stdout]    --> src/simple2d/drawing_area.rs:62:9
[INFO] [stdout]     |
[INFO] [stdout]  12 | impl DrawingArea {
[INFO] [stdout]     | ---------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout]  62 |     pub fn draw_from_buffer(&self, drawing_area : Rect, draw_surface : &mut DrawSurface, buffer : &Vec<u32>) {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 100 |     pub fn set_position(&mut self, pos : Position) {
[INFO] [stdout]     |            ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 106 |     pub fn get_area(&self) -> Rect {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 110 |     pub fn get_position(&self) -> Position { 
[INFO] [stdout]     |            ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 171 |     pub fn resize(&mut self, new_size : Rect) {
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 175 |     pub fn move_to(&mut self, new_pos : Position) {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `get_screen_size` is never used
[INFO] [stdout]   --> src/simple2d/drawing_window.rs:22:9
[INFO] [stdout]    |
[INFO] [stdout] 20 | impl DrawingWindow {
[INFO] [stdout]    | ------------------ method in this implementation
[INFO] [stdout] 21 |
[INFO] [stdout] 22 |     pub fn get_screen_size(&self) -> Rect {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Ellipse` is never constructed
[INFO] [stdout]  --> src/simple2d/ellipse.rs:9:12
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub struct Ellipse {
[INFO] [stdout]   |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/simple2d/ellipse.rs:16:9
[INFO] [stdout]    |
[INFO] [stdout] 14 | impl Ellipse {
[INFO] [stdout]    | ------------ associated function in this implementation
[INFO] [stdout] 15 |
[INFO] [stdout] 16 |     pub fn new(pos: Position, size : Rect, color : Option<u32>) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `PositionFrom2` is never used
[INFO] [stdout]   --> src/simple2d/position.rs:26:11
[INFO] [stdout]    |
[INFO] [stdout] 26 | pub trait PositionFrom2<T, U> {
[INFO] [stdout]    |           ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `color` is never read
[INFO] [stdout]   --> src/simple2d/rectangle.rs:10:2
[INFO] [stdout]    |
[INFO] [stdout]  8 | pub struct Rectangle {
[INFO] [stdout]    |            --------- field in this struct
[INFO] [stdout]  9 |     area : DrawingArea,
[INFO] [stdout] 10 |     color : u32,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `set_size` is never used
[INFO] [stdout]   --> src/simple2d/rectangle.rs:15:9
[INFO] [stdout]    |
[INFO] [stdout] 13 | impl Rectangle { 
[INFO] [stdout]    | -------------- method in this implementation
[INFO] [stdout] 14 |
[INFO] [stdout] 15 |     pub fn set_size(&mut self, size : Rect) { 
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `surface`
[INFO] [stdout]   --> src/lib.rs:92:74
[INFO] [stdout]    |
[INFO] [stdout] 92 |     let on_draw: Rc<Box<dyn Fn(&mut DrawSurface)>> = Rc::new(Box::new(move |surface| {
[INFO] [stdout]    |                                                                             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_surface`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `move_to`, `set_position`, `get_position`, `set_color`, `get_color`, and `get_area` are never used
[INFO] [stdout]   --> src/simple2d/shape.rs:6:5
[INFO] [stdout]    |
[INFO] [stdout]  4 | pub trait Shape {
[INFO] [stdout]    |           ----- methods in this trait
[INFO] [stdout]  5 |     fn draw(&self, surface: &mut DrawSurface);
[INFO] [stdout]  6 |     fn move_to(&mut self, point : Point);
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout]  7 |     fn set_position(&mut self, pos: Position);
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout]  8 |     fn get_position(&self) -> Position;
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout]  9 |     fn set_color(&mut self, color : u32);
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 10 |     fn get_color(&self) -> u32;
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 11 |     fn get_area(&self) -> &DrawingArea;
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `set_pixel`, `get_buffer`, `get_buffer_index`, and `get_buffer_index_mut` are never used
[INFO] [stdout]   --> src/simple2d/draw_surface.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout]  8 | impl DrawSurface {
[INFO] [stdout]    | ---------------- methods in this implementation
[INFO] [stdout]  9 |
[INFO] [stdout] 10 |     pub fn set_pixel(&mut self, color : u32, x : isize, y : isize) {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 39 |     pub fn get_buffer(&self) -> &Vec<u32>  {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 47 |     pub fn get_buffer_index(&self) -> &Vec<u32> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 51 |     pub fn get_buffer_index_mut(&mut self) -> &mut Vec<u32> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Relative` is never constructed
[INFO] [stdout]   --> src/simple2d/drawing_area.rs:10:2
[INFO] [stdout]    |
[INFO] [stdout]  9 | pub enum Positioning {
[INFO] [stdout]    |          ----------- variant in this enum
[INFO] [stdout] 10 |     Relative, Absolute
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `draw_from_buffer`, `set_position`, `get_area`, `get_position`, `resize`, and `move_to` are never used
[INFO] [stdout]    --> src/simple2d/drawing_area.rs:62:9
[INFO] [stdout]     |
[INFO] [stdout]  12 | impl DrawingArea {
[INFO] [stdout]     | ---------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout]  62 |     pub fn draw_from_buffer(&self, drawing_area : Rect, draw_surface : &mut DrawSurface, buffer : &Vec<u32>) {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 100 |     pub fn set_position(&mut self, pos : Position) {
[INFO] [stdout]     |            ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 106 |     pub fn get_area(&self) -> Rect {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 110 |     pub fn get_position(&self) -> Position { 
[INFO] [stdout]     |            ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 171 |     pub fn resize(&mut self, new_size : Rect) {
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 175 |     pub fn move_to(&mut self, new_pos : Position) {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `get_screen_size` is never used
[INFO] [stdout]   --> src/simple2d/drawing_window.rs:22:9
[INFO] [stdout]    |
[INFO] [stdout] 20 | impl DrawingWindow {
[INFO] [stdout]    | ------------------ method in this implementation
[INFO] [stdout] 21 |
[INFO] [stdout] 22 |     pub fn get_screen_size(&self) -> Rect {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Ellipse` is never constructed
[INFO] [stdout]  --> src/simple2d/ellipse.rs:9:12
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub struct Ellipse {
[INFO] [stdout]   |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/simple2d/ellipse.rs:16:9
[INFO] [stdout]    |
[INFO] [stdout] 14 | impl Ellipse {
[INFO] [stdout]    | ------------ associated function in this implementation
[INFO] [stdout] 15 |
[INFO] [stdout] 16 |     pub fn new(pos: Position, size : Rect, color : Option<u32>) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `PositionFrom2` is never used
[INFO] [stdout]   --> src/simple2d/position.rs:26:11
[INFO] [stdout]    |
[INFO] [stdout] 26 | pub trait PositionFrom2<T, U> {
[INFO] [stdout]    |           ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `color` is never read
[INFO] [stdout]   --> src/simple2d/rectangle.rs:10:2
[INFO] [stdout]    |
[INFO] [stdout]  8 | pub struct Rectangle {
[INFO] [stdout]    |            --------- field in this struct
[INFO] [stdout]  9 |     area : DrawingArea,
[INFO] [stdout] 10 |     color : u32,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `set_size` is never used
[INFO] [stdout]   --> src/simple2d/rectangle.rs:15:9
[INFO] [stdout]    |
[INFO] [stdout] 13 | impl Rectangle { 
[INFO] [stdout]    | -------------- method in this implementation
[INFO] [stdout] 14 |
[INFO] [stdout] 15 |     pub fn set_size(&mut self, size : Rect) { 
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 35.83s
[INFO] running `Command { std: "docker" "inspect" "f6cf1f48dcb99c8a7f66a195bf73a74f285d5c49474b0932e51de8a175c7794d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f6cf1f48dcb99c8a7f66a195bf73a74f285d5c49474b0932e51de8a175c7794d", kill_on_drop: false }`
[INFO] [stdout] f6cf1f48dcb99c8a7f66a195bf73a74f285d5c49474b0932e51de8a175c7794d
