[INFO] cloning repository https://github.com/kabosusang/crab_tinyrenderer
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kabosusang/crab_tinyrenderer" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkabosusang%2Fcrab_tinyrenderer", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkabosusang%2Fcrab_tinyrenderer'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 757885a7d97e2e80f0c5647cbcf5a9943aa56256
[INFO] checking kabosusang/crab_tinyrenderer against master#dc375db7d8df0aa450e622c529147c95eee756f5 for pr-156749
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkabosusang%2Fcrab_tinyrenderer" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/kabosusang/crab_tinyrenderer
[INFO] finished tweaking git repo https://github.com/kabosusang/crab_tinyrenderer
[INFO] tweaked toml for git repo https://github.com/kabosusang/crab_tinyrenderer written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/kabosusang/crab_tinyrenderer on toolchain dc375db7d8df0aa450e622c529147c95eee756f5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+dc375db7d8df0aa450e622c529147c95eee756f5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/kabosusang/crab_tinyrenderer 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" "+dc375db7d8df0aa450e622c529147c95eee756f5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded wasm-bindgen-shared v0.2.118
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:3e793bdf10248eb2ddbd6b0faebed8155c11b4589982e2893733958d93e8d540" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 2d3b1951f40261f5f8ea61d2f7e80f577344addc20d509dd8b6a3c0876c589b3
[INFO] running `Command { std: "docker" "start" "2d3b1951f40261f5f8ea61d2f7e80f577344addc20d509dd8b6a3c0876c589b3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "2d3b1951f40261f5f8ea61d2f7e80f577344addc20d509dd8b6a3c0876c589b3" "/opt/rustwide/cargo-home/bin/cargo" "+dc375db7d8df0aa450e622c529147c95eee756f5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2d3b1951f40261f5f8ea61d2f7e80f577344addc20d509dd8b6a3c0876c589b3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "2d3b1951f40261f5f8ea61d2f7e80f577344addc20d509dd8b6a3c0876c589b3" "/opt/rustwide/cargo-home/bin/cargo" "+dc375db7d8df0aa450e622c529147c95eee756f5" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.106
[INFO] [stderr]    Compiling unicode-ident v1.0.24
[INFO] [stderr]    Compiling libc v0.2.184
[INFO] [stderr]    Compiling pkg-config v0.3.33
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[INFO] [stderr]    Compiling quote v1.0.45
[INFO] [stderr]    Compiling autocfg v1.5.0
[INFO] [stderr]    Compiling xml-rs v0.8.28
[INFO] [stderr]     Checking once_cell v1.21.4
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]     Checking lazy_static v1.5.0
[INFO] [stderr]     Checking smallvec v1.15.1
[INFO] [stderr]    Compiling rustix v1.1.4
[INFO] [stderr]     Checking scoped-tls v1.0.1
[INFO] [stderr]     Checking downcast-rs v1.2.1
[INFO] [stderr]    Compiling find-msvc-tools v0.1.9
[INFO] [stderr]     Checking libloading v0.8.9
[INFO] [stderr]    Compiling getrandom v0.4.2
[INFO] [stderr]     Checking bitflags v2.11.0
[INFO] [stderr]     Checking linux-raw-sys v0.12.1
[INFO] [stderr]     Checking xcursor v0.3.10
[INFO] [stderr]     Checking fastrand v2.4.1
[INFO] [stderr]     Checking dlib v0.5.3
[INFO] [stderr]     Checking raw-window-handle v0.6.2
[INFO] [stderr]    Compiling cc v1.2.60
[INFO] [stderr]    Compiling wayland-sys v0.29.5
[INFO] [stderr]    Compiling x11-dl v2.21.0
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]    Compiling wayland-scanner v0.29.5
[INFO] [stderr]     Checking nix v0.24.3
[INFO] [stderr]    Compiling wayland-client v0.29.5
[INFO] [stderr]    Compiling wayland-protocols v0.29.5
[INFO] [stderr]    Compiling minifb v0.28.0
[INFO] [stderr]     Checking tempfile v3.27.0
[INFO] [stderr]     Checking wayland-commons v0.29.5
[INFO] [stderr]     Checking wayland-cursor v0.29.5
[INFO] [stderr]     Checking CGRL v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `*`
[INFO] [stdout]  --> src/graphic/line.rs:1:25
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::math::{self, *};
[INFO] [stdout]   |                         ^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]   --> src/graphic/line.rs:26:26
[INFO] [stdout]    |
[INFO] [stdout] 26 |         let x_inc: f32 = (dx / steps as f32);
[INFO] [stdout]    |                          ^                 ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 26 -         let x_inc: f32 = (dx / steps as f32);
[INFO] [stdout] 26 +         let x_inc: f32 = dx / steps as f32 ;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]   --> src/graphic/line.rs:27:26
[INFO] [stdout]    |
[INFO] [stdout] 27 |         let y_inc: f32 = (dy / steps as f32);
[INFO] [stdout]    |                          ^                 ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 27 -         let y_inc: f32 = (dy / steps as f32);
[INFO] [stdout] 27 +         let y_inc: f32 = dy / steps as f32 ;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::intrinsics::write_bytes`
[INFO] [stdout]  --> src/graphic/canvas.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::intrinsics::write_bytes;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `write`
[INFO] [stdout]  --> src/graphic/error.rs:1:22
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::fmt::{self, write};
[INFO] [stdout]   |                      ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `*`
[INFO] [stdout]  --> src/graphic/line.rs:1:25
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::math::{self, *};
[INFO] [stdout]   |                         ^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]   --> src/graphic/line.rs:26:26
[INFO] [stdout]    |
[INFO] [stdout] 26 |         let x_inc: f32 = (dx / steps as f32);
[INFO] [stdout]    |                          ^                 ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 26 -         let x_inc: f32 = (dx / steps as f32);
[INFO] [stdout] 26 +         let x_inc: f32 = dx / steps as f32 ;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]   --> src/graphic/line.rs:27:26
[INFO] [stdout]    |
[INFO] [stdout] 27 |         let y_inc: f32 = (dy / steps as f32);
[INFO] [stdout]    |                          ^                 ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 27 -         let y_inc: f32 = (dy / steps as f32);
[INFO] [stdout] 27 +         let y_inc: f32 = dy / steps as f32 ;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::intrinsics::write_bytes`
[INFO] [stdout]  --> src/graphic/canvas.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::intrinsics::write_bytes;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `write`
[INFO] [stdout]  --> src/graphic/error.rs:1:22
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::fmt::{self, write};
[INFO] [stdout]   |                      ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated module `std::intrinsics`: import this function via `std::ptr` instead
[INFO] [stdout]  --> src/graphic/canvas.rs:1:22
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::intrinsics::write_bytes;
[INFO] [stdout]   |                      ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated module `std::intrinsics`: import this function via `std::ptr` instead
[INFO] [stdout]  --> src/graphic/canvas.rs:1:22
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::intrinsics::write_bytes;
[INFO] [stdout]   |                      ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `DDA` is never used
[INFO] [stdout]  --> src/graphic/line.rs:7:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | impl Line {
[INFO] [stdout]   | --------- associated function in this implementation
[INFO] [stdout] 6 |     // DDA
[INFO] [stdout] 7 |     pub fn DDA(x0: f32, y0: f32, x1: f32, y1: f32) -> Vec<(usize, usize)> {
[INFO] [stdout]   |            ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated constant `WHITE` is never used
[INFO] [stdout]   --> src/graphic/color.rs:31:15
[INFO] [stdout]    |
[INFO] [stdout] 16 | impl Color {
[INFO] [stdout]    | ---------- associated constant in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 31 |     pub const WHITE: Self = Self::new(255, 255, 255);
[INFO] [stdout]    |               ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `center_origin`, `draw_line_dda`, `draw_wireframe_triangle`, and `draw_filled_triangle` are never used
[INFO] [stdout]    --> src/graphic/canvas.rs:36:18
[INFO] [stdout]     |
[INFO] [stdout]  35 | impl Canvas {
[INFO] [stdout]     | ----------- associated items in this implementation
[INFO] [stdout]  36 |     pub const fn center_origin(canvas: &Canvas, x: isize, y: isize) -> (usize, usize) {
[INFO] [stdout]     |                  ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  71 |     pub fn draw_line_dda(
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 125 |     pub fn draw_wireframe_triangle(
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 144 |     pub fn draw_filled_triangle(
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `max` is never used
[INFO] [stdout]  --> src/math/number.rs:2:8
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub fn max<T: PartialOrd>(v1: T, v2: T) -> T {
[INFO] [stdout]   |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `interpolate_isize` is never used
[INFO] [stdout]   --> src/math/number.rs:22:8
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub fn interpolate_isize(y_start: isize, x_start: isize, y_end: isize, x_end: isize) -> Vec<isize> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `DDA` should have a snake case name
[INFO] [stdout]  --> src/graphic/line.rs:7:12
[INFO] [stdout]   |
[INFO] [stdout] 7 |     pub fn DDA(x0: f32, y0: f32, x1: f32, y1: f32) -> Vec<(usize, usize)> {
[INFO] [stdout]   |            ^^^ help: convert the identifier to snake case: `dda`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `BresenHam` should have a snake case name
[INFO] [stdout]   --> src/graphic/line.rs:38:12
[INFO] [stdout]    |
[INFO] [stdout] 38 |     pub fn BresenHam(x0: usize, y0: usize, x1: usize, y1: usize) -> Vec<(usize, usize)> {
[INFO] [stdout]    |            ^^^^^^^^^ help: convert the identifier to snake case: `bresen_ham`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/graphic/canvas.rs:80:13
[INFO] [stdout]    |
[INFO] [stdout] 80 |             self.draw_point(point.0, point.1, color);
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 80 |             let _ = self.draw_point(point.0, point.1, color);
[INFO] [stdout]    |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/graphic/canvas.rs:118:13
[INFO] [stdout]     |
[INFO] [stdout] 118 |             self.draw_point(point.0, point.1, color);
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 118 |             let _ = self.draw_point(point.0, point.1, color);
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `DDA` is never used
[INFO] [stdout]  --> src/graphic/line.rs:7:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | impl Line {
[INFO] [stdout]   | --------- associated function in this implementation
[INFO] [stdout] 6 |     // DDA
[INFO] [stdout] 7 |     pub fn DDA(x0: f32, y0: f32, x1: f32, y1: f32) -> Vec<(usize, usize)> {
[INFO] [stdout]   |            ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated constant `WHITE` is never used
[INFO] [stdout]   --> src/graphic/color.rs:31:15
[INFO] [stdout]    |
[INFO] [stdout] 16 | impl Color {
[INFO] [stdout]    | ---------- associated constant in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 31 |     pub const WHITE: Self = Self::new(255, 255, 255);
[INFO] [stdout]    |               ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `center_origin`, `draw_line_dda`, `draw_wireframe_triangle`, and `draw_filled_triangle` are never used
[INFO] [stdout]    --> src/graphic/canvas.rs:36:18
[INFO] [stdout]     |
[INFO] [stdout]  35 | impl Canvas {
[INFO] [stdout]     | ----------- associated items in this implementation
[INFO] [stdout]  36 |     pub const fn center_origin(canvas: &Canvas, x: isize, y: isize) -> (usize, usize) {
[INFO] [stdout]     |                  ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  71 |     pub fn draw_line_dda(
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 125 |     pub fn draw_wireframe_triangle(
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 144 |     pub fn draw_filled_triangle(
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `max` is never used
[INFO] [stdout]  --> src/math/number.rs:2:8
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub fn max<T: PartialOrd>(v1: T, v2: T) -> T {
[INFO] [stdout]   |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `interpolate_isize` is never used
[INFO] [stdout]   --> src/math/number.rs:22:8
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub fn interpolate_isize(y_start: isize, x_start: isize, y_end: isize, x_end: isize) -> Vec<isize> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `DDA` should have a snake case name
[INFO] [stdout]  --> src/graphic/line.rs:7:12
[INFO] [stdout]   |
[INFO] [stdout] 7 |     pub fn DDA(x0: f32, y0: f32, x1: f32, y1: f32) -> Vec<(usize, usize)> {
[INFO] [stdout]   |            ^^^ help: convert the identifier to snake case: `dda`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `BresenHam` should have a snake case name
[INFO] [stdout]   --> src/graphic/line.rs:38:12
[INFO] [stdout]    |
[INFO] [stdout] 38 |     pub fn BresenHam(x0: usize, y0: usize, x1: usize, y1: usize) -> Vec<(usize, usize)> {
[INFO] [stdout]    |            ^^^^^^^^^ help: convert the identifier to snake case: `bresen_ham`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/graphic/canvas.rs:80:13
[INFO] [stdout]    |
[INFO] [stdout] 80 |             self.draw_point(point.0, point.1, color);
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 80 |             let _ = self.draw_point(point.0, point.1, color);
[INFO] [stdout]    |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/graphic/canvas.rs:118:13
[INFO] [stdout]     |
[INFO] [stdout] 118 |             self.draw_point(point.0, point.1, color);
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 118 |             let _ = self.draw_point(point.0, point.1, color);
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 19.05s
[INFO] running `Command { std: "docker" "inspect" "2d3b1951f40261f5f8ea61d2f7e80f577344addc20d509dd8b6a3c0876c589b3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2d3b1951f40261f5f8ea61d2f7e80f577344addc20d509dd8b6a3c0876c589b3", kill_on_drop: false }`
[INFO] [stdout] 2d3b1951f40261f5f8ea61d2f7e80f577344addc20d509dd8b6a3c0876c589b3
