[INFO] cloning repository https://github.com/stephenjayakar/procedural-raytracer
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/stephenjayakar/procedural-raytracer" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstephenjayakar%2Fprocedural-raytracer", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstephenjayakar%2Fprocedural-raytracer'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c58b5ce0ff51bbfff425feacf340d7447da04594
[INFO] testing stephenjayakar/procedural-raytracer against try#b83b707f97d809763b7861afa7638871f3339a33 for pr-145838-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstephenjayakar%2Fprocedural-raytracer" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/stephenjayakar/procedural-raytracer
[INFO] finished tweaking git repo https://github.com/stephenjayakar/procedural-raytracer
[INFO] tweaked toml for git repo https://github.com/stephenjayakar/procedural-raytracer written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/stephenjayakar/procedural-raytracer on toolchain b83b707f97d809763b7861afa7638871f3339a33
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/stephenjayakar/procedural-raytracer 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" "+b83b707f97d809763b7861afa7638871f3339a33" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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_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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0d63fd76d186772ed6c6ab0b89756b0bd58fe0fa0735869b53d62309d1ffbea3
[INFO] running `Command { std: "docker" "start" "-a" "0d63fd76d186772ed6c6ab0b89756b0bd58fe0fa0735869b53d62309d1ffbea3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0d63fd76d186772ed6c6ab0b89756b0bd58fe0fa0735869b53d62309d1ffbea3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0d63fd76d186772ed6c6ab0b89756b0bd58fe0fa0735869b53d62309d1ffbea3", kill_on_drop: false }`
[INFO] [stdout] 0d63fd76d186772ed6c6ab0b89756b0bd58fe0fa0735869b53d62309d1ffbea3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d3d1ce9ba52cb68dda01539dab70ebe939ae9c9ba8602ad8c8b1a6f892f21ec9
[INFO] running `Command { std: "docker" "start" "-a" "d3d1ce9ba52cb68dda01539dab70ebe939ae9c9ba8602ad8c8b1a6f892f21ec9", kill_on_drop: false }`
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling rand_core v0.3.0
[INFO] [stderr]    Compiling num-traits v0.2.6
[INFO] [stderr]    Compiling num-integer v0.1.39
[INFO] [stderr]    Compiling num-iter v0.1.37
[INFO] [stderr]    Compiling cfg-if v0.1.6
[INFO] [stderr]    Compiling libc v0.2.45
[INFO] [stderr]    Compiling adler32 v1.2.0
[INFO] [stderr]    Compiling crc32fast v1.3.0
[INFO] [stderr]    Compiling byteorder v1.4.3
[INFO] [stderr]    Compiling bitflags v1.0.4
[INFO] [stderr]    Compiling lazy_static v1.2.0
[INFO] [stderr]    Compiling sdl2-sys v0.32.5
[INFO] [stderr]    Compiling miniz_oxide v0.3.7
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling deflate v0.8.6
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling rand_xorshift v0.1.0
[INFO] [stderr]    Compiling rand_hc v0.1.0
[INFO] [stderr]    Compiling rand_isaac v0.1.1
[INFO] [stderr]    Compiling rand_pcg v0.1.1
[INFO] [stderr]    Compiling rand_chacha v0.1.0
[INFO] [stderr]    Compiling rand v0.6.1
[INFO] [stderr]    Compiling png v0.16.8
[INFO] [stderr]    Compiling num v0.1.42
[INFO] [stderr]    Compiling sdl2 v0.32.1
[INFO] [stderr]    Compiling rust-raytracer v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]    --> src/main.rs:111:39
[INFO] [stdout]     |
[INFO] [stdout] 111 |         let alpha = ((1.0 - fmin(1.0, ((height + HEIGHT as f32 / 2.0) / (HEIGHT as f32)))) * 255.0) as u8;
[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] 111 -         let alpha = ((1.0 - fmin(1.0, ((height + HEIGHT as f32 / 2.0) / (HEIGHT as f32)))) * 255.0) as u8;
[INFO] [stdout] 111 +         let alpha = ((1.0 - fmin(1.0, (height + HEIGHT as f32 / 2.0) / (HEIGHT as f32))) * 255.0) as u8;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]    --> src/main.rs:123:35
[INFO] [stdout]     |
[INFO] [stdout] 123 |     let alpha = ((1.0 - fmin(1.0, (((rect_height + rect_height) as f32 / 2.0) / (rect_height as f32)))) * 255.0) as u8;
[INFO] [stdout]     |                                   ^                                                                 ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 123 -     let alpha = ((1.0 - fmin(1.0, (((rect_height + rect_height) as f32 / 2.0) / (rect_height as f32)))) * 255.0) as u8;
[INFO] [stdout] 123 +     let alpha = ((1.0 - fmin(1.0, ((rect_height + rect_height) as f32 / 2.0) / (rect_height as f32))) * 255.0) as u8;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `timestamp`
[INFO] [stdout]    --> src/main.rs:179:50
[INFO] [stdout]     |
[INFO] [stdout] 179 |     fn get_image(&self, width: u32, height: u32, timestamp: Option<Instant>) -> Image {
[INFO] [stdout]     |                                                  ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_timestamp`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `fog`
[INFO] [stdout]    --> src/main.rs:221:52
[INFO] [stdout]     |
[INFO] [stdout] 221 |     let State { position, samples, direction, fov, fog } = *state;
[INFO] [stdout]     |                                                    ^^^ help: try ignoring the field: `fog: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `start_time` is never read
[INFO] [stdout]    --> src/main.rs:130:5
[INFO] [stdout]     |
[INFO] [stdout] 129 | struct ProceduralGenerator {
[INFO] [stdout]     |        ------------------- field in this struct
[INFO] [stdout] 130 |     start_time: Instant,
[INFO] [stdout]     |     ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/main.rs:119:5
[INFO] [stdout]     |
[INFO] [stdout] 119 |     canvas.fill_rect(Rect::new(x, y, width, height));
[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] 119 |     let _ = canvas.fill_rect(Rect::new(x, y, width, height));
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/main.rs:249:5
[INFO] [stdout]     |
[INFO] [stdout] 249 |     std::fs::create_dir("./dump");
[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] 249 |     let _ = std::fs::create_dir("./dump");
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.10s
[INFO] running `Command { std: "docker" "inspect" "d3d1ce9ba52cb68dda01539dab70ebe939ae9c9ba8602ad8c8b1a6f892f21ec9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d3d1ce9ba52cb68dda01539dab70ebe939ae9c9ba8602ad8c8b1a6f892f21ec9", kill_on_drop: false }`
[INFO] [stdout] d3d1ce9ba52cb68dda01539dab70ebe939ae9c9ba8602ad8c8b1a6f892f21ec9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 12229b14a29276d9d88d5b814181f54077462257be334855202387236a52f0e9
[INFO] running `Command { std: "docker" "start" "-a" "12229b14a29276d9d88d5b814181f54077462257be334855202387236a52f0e9", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust-raytracer v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]    --> src/main.rs:111:39
[INFO] [stdout]     |
[INFO] [stdout] 111 |         let alpha = ((1.0 - fmin(1.0, ((height + HEIGHT as f32 / 2.0) / (HEIGHT as f32)))) * 255.0) as u8;
[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] 111 -         let alpha = ((1.0 - fmin(1.0, ((height + HEIGHT as f32 / 2.0) / (HEIGHT as f32)))) * 255.0) as u8;
[INFO] [stdout] 111 +         let alpha = ((1.0 - fmin(1.0, (height + HEIGHT as f32 / 2.0) / (HEIGHT as f32))) * 255.0) as u8;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]    --> src/main.rs:123:35
[INFO] [stdout]     |
[INFO] [stdout] 123 |     let alpha = ((1.0 - fmin(1.0, (((rect_height + rect_height) as f32 / 2.0) / (rect_height as f32)))) * 255.0) as u8;
[INFO] [stdout]     |                                   ^                                                                 ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 123 -     let alpha = ((1.0 - fmin(1.0, (((rect_height + rect_height) as f32 / 2.0) / (rect_height as f32)))) * 255.0) as u8;
[INFO] [stdout] 123 +     let alpha = ((1.0 - fmin(1.0, ((rect_height + rect_height) as f32 / 2.0) / (rect_height as f32))) * 255.0) as u8;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `timestamp`
[INFO] [stdout]    --> src/main.rs:179:50
[INFO] [stdout]     |
[INFO] [stdout] 179 |     fn get_image(&self, width: u32, height: u32, timestamp: Option<Instant>) -> Image {
[INFO] [stdout]     |                                                  ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_timestamp`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `fog`
[INFO] [stdout]    --> src/main.rs:221:52
[INFO] [stdout]     |
[INFO] [stdout] 221 |     let State { position, samples, direction, fov, fog } = *state;
[INFO] [stdout]     |                                                    ^^^ help: try ignoring the field: `fog: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `start_time` is never read
[INFO] [stdout]    --> src/main.rs:130:5
[INFO] [stdout]     |
[INFO] [stdout] 129 | struct ProceduralGenerator {
[INFO] [stdout]     |        ------------------- field in this struct
[INFO] [stdout] 130 |     start_time: Instant,
[INFO] [stdout]     |     ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/main.rs:119:5
[INFO] [stdout]     |
[INFO] [stdout] 119 |     canvas.fill_rect(Rect::new(x, y, width, height));
[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] 119 |     let _ = canvas.fill_rect(Rect::new(x, y, width, height));
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/main.rs:249:5
[INFO] [stdout]     |
[INFO] [stdout] 249 |     std::fs::create_dir("./dump");
[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] 249 |     let _ = std::fs::create_dir("./dump");
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.50s
[INFO] running `Command { std: "docker" "inspect" "12229b14a29276d9d88d5b814181f54077462257be334855202387236a52f0e9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "12229b14a29276d9d88d5b814181f54077462257be334855202387236a52f0e9", kill_on_drop: false }`
[INFO] [stdout] 12229b14a29276d9d88d5b814181f54077462257be334855202387236a52f0e9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 32dd37972c00f4ab50ee1df65911458107a31ef09b9fabf46d547dd62664afa9
[INFO] running `Command { std: "docker" "start" "-a" "32dd37972c00f4ab50ee1df65911458107a31ef09b9fabf46d547dd62664afa9", kill_on_drop: false }`
[INFO] [stderr] warning: unnecessary parentheses around function argument
[INFO] [stdout] 
[INFO] [stderr]    --> src/main.rs:111:39
[INFO] [stdout] running 0 tests
[INFO] [stderr]     |
[INFO] [stdout] 
[INFO] [stderr] 111 |         let alpha = ((1.0 - fmin(1.0, ((height + HEIGHT as f32 / 2.0) / (HEIGHT as f32)))) * 255.0) as u8;
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr]     |                                       ^                                                ^
[INFO] [stdout] 
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 111 -         let alpha = ((1.0 - fmin(1.0, ((height + HEIGHT as f32 / 2.0) / (HEIGHT as f32)))) * 255.0) as u8;
[INFO] [stderr] 111 +         let alpha = ((1.0 - fmin(1.0, (height + HEIGHT as f32 / 2.0) / (HEIGHT as f32))) * 255.0) as u8;
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around function argument
[INFO] [stderr]    --> src/main.rs:123:35
[INFO] [stderr]     |
[INFO] [stderr] 123 |     let alpha = ((1.0 - fmin(1.0, (((rect_height + rect_height) as f32 / 2.0) / (rect_height as f32)))) * 255.0) as u8;
[INFO] [stderr]     |                                   ^                                                                 ^
[INFO] [stderr]     |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 123 -     let alpha = ((1.0 - fmin(1.0, (((rect_height + rect_height) as f32 / 2.0) / (rect_height as f32)))) * 255.0) as u8;
[INFO] [stderr] 123 +     let alpha = ((1.0 - fmin(1.0, ((rect_height + rect_height) as f32 / 2.0) / (rect_height as f32))) * 255.0) as u8;
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `timestamp`
[INFO] [stderr]    --> src/main.rs:179:50
[INFO] [stderr]     |
[INFO] [stderr] 179 |     fn get_image(&self, width: u32, height: u32, timestamp: Option<Instant>) -> Image {
[INFO] [stderr]     |                                                  ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_timestamp`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `fog`
[INFO] [stderr]    --> src/main.rs:221:52
[INFO] [stderr]     |
[INFO] [stderr] 221 |     let State { position, samples, direction, fov, fog } = *state;
[INFO] [stderr]     |                                                    ^^^ help: try ignoring the field: `fog: _`
[INFO] [stderr] 
[INFO] [stderr] warning: field `start_time` is never read
[INFO] [stderr]    --> src/main.rs:130:5
[INFO] [stderr]     |
[INFO] [stderr] 129 | struct ProceduralGenerator {
[INFO] [stderr]     |        ------------------- field in this struct
[INFO] [stderr] 130 |     start_time: Instant,
[INFO] [stderr]     |     ^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> src/main.rs:119:5
[INFO] [stderr]     |
[INFO] [stderr] 119 |     canvas.fill_rect(Rect::new(x, y, width, height));
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 119 |     let _ = canvas.fill_rect(Rect::new(x, y, width, height));
[INFO] [stderr]     |     +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> src/main.rs:249:5
[INFO] [stderr]     |
[INFO] [stderr] 249 |     std::fs::create_dir("./dump");
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 249 |     let _ = std::fs::create_dir("./dump");
[INFO] [stderr]     |     +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: `rust-raytracer` (bin "rust-raytracer" test) generated 7 warnings (run `cargo fix --bin "rust-raytracer" --tests` to apply 2 suggestions)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.09s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/rust_raytracer-91307550d39b123f)
[INFO] running `Command { std: "docker" "inspect" "32dd37972c00f4ab50ee1df65911458107a31ef09b9fabf46d547dd62664afa9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "32dd37972c00f4ab50ee1df65911458107a31ef09b9fabf46d547dd62664afa9", kill_on_drop: false }`
[INFO] [stdout] 32dd37972c00f4ab50ee1df65911458107a31ef09b9fabf46d547dd62664afa9