[INFO] cloning repository https://github.com/SiddharthV147/Interactive-Raycasting-Demo-in-Rust [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/SiddharthV147/Interactive-Raycasting-Demo-in-Rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSiddharthV147%2FInteractive-Raycasting-Demo-in-Rust", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSiddharthV147%2FInteractive-Raycasting-Demo-in-Rust'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] c80fe7f202125166ee08f4e1bc5ce78300a1e519 [INFO] building SiddharthV147/Interactive-Raycasting-Demo-in-Rust against master#c7f6aa2869acdbf014d094c6e427e554e160b6db for pr-146237-2 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSiddharthV147%2FInteractive-Raycasting-Demo-in-Rust" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/SiddharthV147/Interactive-Raycasting-Demo-in-Rust [INFO] finished tweaking git repo https://github.com/SiddharthV147/Interactive-Raycasting-Demo-in-Rust [INFO] tweaked toml for git repo https://github.com/SiddharthV147/Interactive-Raycasting-Demo-in-Rust written to /workspace/builds/worker-3-tc1/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/SiddharthV147/Interactive-Raycasting-Demo-in-Rust on toolchain c7f6aa2869acdbf014d094c6e427e554e160b6db [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/SiddharthV147/Interactive-Raycasting-Demo-in-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" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded wgpu-core-deps-apple v25.0.0 [INFO] [stderr] Downloaded wgpu-core-deps-emscripten v25.0.0 [INFO] [stderr] Downloaded wgpu-core-deps-windows-linux-android v25.0.0 [INFO] [stderr] Downloaded libloading v0.8.7 [INFO] [stderr] Downloaded wgpu-types v25.0.0 [INFO] [stderr] Downloaded wgpu-hal v25.0.1 [INFO] [stderr] Downloaded wgpu v25.0.0 [INFO] [stderr] Downloaded wgpu-core v25.0.1 [INFO] [stderr] Downloaded naga v25.0.1 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] e1b59093a59a9e180e234a7c1cfef19d247f8197ca71346ea1dd688dedebdd6a [INFO] running `Command { std: "docker" "start" "-a" "e1b59093a59a9e180e234a7c1cfef19d247f8197ca71346ea1dd688dedebdd6a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "e1b59093a59a9e180e234a7c1cfef19d247f8197ca71346ea1dd688dedebdd6a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e1b59093a59a9e180e234a7c1cfef19d247f8197ca71346ea1dd688dedebdd6a", kill_on_drop: false }` [INFO] [stdout] e1b59093a59a9e180e234a7c1cfef19d247f8197ca71346ea1dd688dedebdd6a [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] b96dc5d57d4a4079371bebdd0270ad776e6f0b191fa4ac6aa7da3c2d8b57ac35 [INFO] running `Command { std: "docker" "start" "-a" "b96dc5d57d4a4079371bebdd0270ad776e6f0b191fa4ac6aa7da3c2d8b57ac35", kill_on_drop: false }` [INFO] [stderr] Compiling unicode-ident v1.0.18 [INFO] [stderr] Compiling serde v1.0.219 [INFO] [stderr] Compiling libm v0.2.15 [INFO] [stderr] Compiling thiserror v2.0.12 [INFO] [stderr] Compiling libloading v0.8.7 [INFO] [stderr] Compiling num-traits v0.2.19 [INFO] [stderr] Compiling hashbrown v0.15.3 [INFO] [stderr] Compiling naga v25.0.1 [INFO] [stderr] Compiling bit-vec v0.8.0 [INFO] [stderr] Compiling ash v0.38.0+1.3.281 [INFO] [stderr] Compiling smallvec v1.15.0 [INFO] [stderr] Compiling codespan-reporting v0.12.0 [INFO] [stderr] Compiling wgpu-hal v25.0.1 [INFO] [stderr] Compiling once_cell v1.21.3 [INFO] [stderr] Compiling rustc-hash v1.1.0 [INFO] [stderr] Compiling sdl2-sys v0.35.2 [INFO] [stderr] Compiling proc-macro2 v1.0.95 [INFO] [stderr] Compiling bit-set v0.8.0 [INFO] [stderr] Compiling khronos-egl v6.0.0 [INFO] [stderr] Compiling wgpu-core v25.0.1 [INFO] [stderr] Compiling parking_lot_core v0.9.10 [INFO] [stderr] Compiling wgpu v25.0.0 [INFO] [stderr] Compiling sdl2 v0.35.2 [INFO] [stderr] Compiling indexmap v2.9.0 [INFO] [stderr] Compiling parking_lot v0.12.3 [INFO] [stderr] Compiling quote v1.0.40 [INFO] [stderr] Compiling syn v2.0.101 [INFO] [stderr] Compiling half v2.6.0 [INFO] [stderr] Compiling ordered-float v4.6.0 [INFO] [stderr] Compiling bitflags v2.9.1 [INFO] [stderr] Compiling gpu-descriptor-types v0.2.0 [INFO] [stderr] Compiling spirv v0.3.0+sdk-1.3.268.0 [INFO] [stderr] Compiling gpu-alloc-types v0.3.0 [INFO] [stderr] Compiling gpu-descriptor v0.3.1 [INFO] [stderr] Compiling gpu-alloc v0.6.0 [INFO] [stderr] Compiling thiserror-impl v2.0.12 [INFO] [stderr] Compiling strum_macros v0.26.4 [INFO] [stderr] Compiling bytemuck_derive v1.9.3 [INFO] [stderr] Compiling bytemuck v1.23.0 [INFO] [stderr] Compiling wgpu-types v25.0.0 [INFO] [stderr] Compiling strum v0.26.3 [INFO] [stderr] Compiling wgpu-core-deps-windows-linux-android v25.0.0 [INFO] [stderr] Compiling WaveRendering v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused variable: `radius` [INFO] [stdout] --> src/main.rs:85:9 [INFO] [stdout] | [INFO] [stdout] 85 | let radius = MAX_RAY_LENGTH; [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] help: if this is intentional, prefix it with an underscore [INFO] [stdout] | [INFO] [stdout] 85 | let _radius = MAX_RAY_LENGTH; [INFO] [stdout] | + [INFO] [stdout] help: you might have meant to pattern match on the similarly named constant `MAX_RAY_LENGTH` [INFO] [stdout] | [INFO] [stdout] 85 - let radius = MAX_RAY_LENGTH; [INFO] [stdout] 85 + let MAX_RAY_LENGTH = MAX_RAY_LENGTH; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `x` [INFO] [stdout] --> src/main.rs:82:93 [INFO] [stdout] | [INFO] [stdout] 82 | ...:video::Window>, circle:& Circle, x: i32, y: i32, object: &Circle) -> Result<(), String> { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_x` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `y` [INFO] [stdout] --> src/main.rs:82:101 [INFO] [stdout] | [INFO] [stdout] 82 | ...Window>, circle:& Circle, x: i32, y: i32, object: &Circle) -> Result<(), String> { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_y` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `x` [INFO] [stdout] --> src/main.rs:135:13 [INFO] [stdout] | [INFO] [stdout] 135 | let mut x = 0; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_x` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `y` [INFO] [stdout] --> src/main.rs:136:13 [INFO] [stdout] | [INFO] [stdout] 136 | let mut y = 400; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_y` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:135:9 [INFO] [stdout] | [INFO] [stdout] 135 | let mut x = 0; [INFO] [stdout] | ----^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:136:9 [INFO] [stdout] | [INFO] [stdout] 136 | let mut y = 400; [INFO] [stdout] | ----^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Ray` is never constructed [INFO] [stdout] --> src/main.rs:20:8 [INFO] [stdout] | [INFO] [stdout] 20 | struct Ray { [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Coord` is never constructed [INFO] [stdout] --> src/main.rs:26:8 [INFO] [stdout] | [INFO] [stdout] 26 | struct Coord { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:51:17 [INFO] [stdout] | [INFO] [stdout] 51 | draw_ligth_rays(canvas, circle,x, y, object); [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] 51 | let _ = draw_ligth_rays(canvas, circle,x, y, object); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:198:9 [INFO] [stdout] | [INFO] [stdout] 198 | draw_light_circle(&mut canvas, &circle, & shadow_circle); [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] 198 | let _ = draw_light_circle(&mut canvas, &circle, & shadow_circle); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:199:9 [INFO] [stdout] | [INFO] [stdout] 199 | draw_shadow_circle(&mut canvas, &shadow_circle); [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] 199 | let _ = draw_shadow_circle(&mut canvas, &shadow_circle); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 57.90s [INFO] running `Command { std: "docker" "inspect" "b96dc5d57d4a4079371bebdd0270ad776e6f0b191fa4ac6aa7da3c2d8b57ac35", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b96dc5d57d4a4079371bebdd0270ad776e6f0b191fa4ac6aa7da3c2d8b57ac35", kill_on_drop: false }` [INFO] [stdout] b96dc5d57d4a4079371bebdd0270ad776e6f0b191fa4ac6aa7da3c2d8b57ac35 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] b418476b3503e66c2099a336bb32f0c690cc743faade0161f8281996f7726185 [INFO] running `Command { std: "docker" "start" "-a" "b418476b3503e66c2099a336bb32f0c690cc743faade0161f8281996f7726185", kill_on_drop: false }` [INFO] [stderr] Compiling WaveRendering v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused variable: `radius` [INFO] [stdout] --> src/main.rs:85:9 [INFO] [stdout] | [INFO] [stdout] 85 | let radius = MAX_RAY_LENGTH; [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] help: if this is intentional, prefix it with an underscore [INFO] [stdout] | [INFO] [stdout] 85 | let _radius = MAX_RAY_LENGTH; [INFO] [stdout] | + [INFO] [stdout] help: you might have meant to pattern match on the similarly named constant `MAX_RAY_LENGTH` [INFO] [stdout] | [INFO] [stdout] 85 - let radius = MAX_RAY_LENGTH; [INFO] [stdout] 85 + let MAX_RAY_LENGTH = MAX_RAY_LENGTH; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `x` [INFO] [stdout] --> src/main.rs:82:93 [INFO] [stdout] | [INFO] [stdout] 82 | ...:video::Window>, circle:& Circle, x: i32, y: i32, object: &Circle) -> Result<(), String> { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_x` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `y` [INFO] [stdout] --> src/main.rs:82:101 [INFO] [stdout] | [INFO] [stdout] 82 | ...Window>, circle:& Circle, x: i32, y: i32, object: &Circle) -> Result<(), String> { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_y` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `x` [INFO] [stdout] --> src/main.rs:135:13 [INFO] [stdout] | [INFO] [stdout] 135 | let mut x = 0; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_x` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `y` [INFO] [stdout] --> src/main.rs:136:13 [INFO] [stdout] | [INFO] [stdout] 136 | let mut y = 400; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_y` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:135:9 [INFO] [stdout] | [INFO] [stdout] 135 | let mut x = 0; [INFO] [stdout] | ----^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:136:9 [INFO] [stdout] | [INFO] [stdout] 136 | let mut y = 400; [INFO] [stdout] | ----^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Ray` is never constructed [INFO] [stdout] --> src/main.rs:20:8 [INFO] [stdout] | [INFO] [stdout] 20 | struct Ray { [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Coord` is never constructed [INFO] [stdout] --> src/main.rs:26:8 [INFO] [stdout] | [INFO] [stdout] 26 | struct Coord { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:51:17 [INFO] [stdout] | [INFO] [stdout] 51 | draw_ligth_rays(canvas, circle,x, y, object); [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] 51 | let _ = draw_ligth_rays(canvas, circle,x, y, object); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:198:9 [INFO] [stdout] | [INFO] [stdout] 198 | draw_light_circle(&mut canvas, &circle, & shadow_circle); [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] 198 | let _ = draw_light_circle(&mut canvas, &circle, & shadow_circle); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:199:9 [INFO] [stdout] | [INFO] [stdout] 199 | draw_shadow_circle(&mut canvas, &shadow_circle); [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] 199 | let _ = draw_shadow_circle(&mut canvas, &shadow_circle); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 1.01s [INFO] running `Command { std: "docker" "inspect" "b418476b3503e66c2099a336bb32f0c690cc743faade0161f8281996f7726185", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b418476b3503e66c2099a336bb32f0c690cc743faade0161f8281996f7726185", kill_on_drop: false }` [INFO] [stdout] b418476b3503e66c2099a336bb32f0c690cc743faade0161f8281996f7726185