[INFO] cloning repository https://github.com/kunalchandan/ToyTracer
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kunalchandan/ToyTracer" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkunalchandan%2FToyTracer", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkunalchandan%2FToyTracer'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ff53b12c5d5fd0185200dcbf631c01f63b34590c
[INFO] checking kunalchandan/ToyTracer against 1.95.0 for pr-155915
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkunalchandan%2FToyTracer" "/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/kunalchandan/ToyTracer
[INFO] finished tweaking git repo https://github.com/kunalchandan/ToyTracer
[INFO] tweaked toml for git repo https://github.com/kunalchandan/ToyTracer written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/kunalchandan/ToyTracer on toolchain 1.95.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/kunalchandan/ToyTracer 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" "+1.95.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: unused manifest key: rust
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded pistoncore-window v0.47.1
[INFO] [stderr]   Downloaded strict-num v0.1.0
[INFO] [stderr]   Downloaded piston-viewport v1.0.0
[INFO] [stderr]   Downloaded flamer v0.5.0
[INFO] [stderr]   Downloaded piston v0.53.2
[INFO] [stderr]   Downloaded glutin_egl_sys v0.5.0
[INFO] [stderr]   Downloaded spin_sleep v1.1.1
[INFO] [stderr]   Downloaded thread-id v3.3.0
[INFO] [stderr]   Downloaded pistoncore-event_loop v0.53.1
[INFO] [stderr]   Downloaded piston-gfx_texture v0.44.0
[INFO] [stderr]   Downloaded gfx_gl v0.6.0
[INFO] [stderr]   Downloaded glutin v0.30.8
[INFO] [stderr]   Downloaded getrandom v0.1.13
[INFO] [stderr]   Downloaded piston2d-gfx_graphics v0.79.0
[INFO] [stderr]   Downloaded gl_generator v0.11.0
[INFO] [stderr]   Downloaded gfx v0.18.2
[INFO] [stderr]   Downloaded piston2d-graphics v0.43.0
[INFO] [stderr]   Downloaded simba v0.7.3
[INFO] [stderr]   Downloaded pistoncore-glutin_window v0.71.0
[INFO] [stderr]   Downloaded piston2d-opengl_graphics v0.82.0
[INFO] [stderr]   Downloaded piston_window v0.128.0
[INFO] [stderr]   Downloaded android-activity v0.4.1
[INFO] [stderr]   Downloaded flame v0.2.2
[INFO] [stderr]   Downloaded exr v1.6.3
[INFO] [stderr]   Downloaded khronos_api v2.2.0
[INFO] [stderr]   Downloaded nalgebra v0.30.1
[INFO] [stderr]   Downloaded web-sys v0.3.63
[INFO] [stderr]   Downloaded orbclient v0.3.45
[INFO] [stderr]   Downloaded imageproc v0.23.0
[INFO] [stderr]   Downloaded piston-float v1.0.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] eaacc0bdd45e328bd13d76b2fad43a8598d4d7a62d9bc34c577d096068441dba
[INFO] running `Command { std: "docker" "start" "-a" "eaacc0bdd45e328bd13d76b2fad43a8598d4d7a62d9bc34c577d096068441dba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "eaacc0bdd45e328bd13d76b2fad43a8598d4d7a62d9bc34c577d096068441dba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eaacc0bdd45e328bd13d76b2fad43a8598d4d7a62d9bc34c577d096068441dba", kill_on_drop: false }`
[INFO] [stdout] eaacc0bdd45e328bd13d76b2fad43a8598d4d7a62d9bc34c577d096068441dba
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 72988505e34adc3dbb33b95a300ca8d43e5a0a0b663eb80bbd7baaefd8d72ccb
[INFO] running `Command { std: "docker" "start" "-a" "72988505e34adc3dbb33b95a300ca8d43e5a0a0b663eb80bbd7baaefd8d72ccb", kill_on_drop: false }`
[INFO] [stderr] warning: unused manifest key: rust
[INFO] [stderr]    Compiling proc-macro2 v1.0.58
[INFO] [stderr]    Compiling unicode-ident v1.0.8
[INFO] [stderr]    Compiling quote v1.0.27
[INFO] [stderr]    Compiling libc v0.2.144
[INFO] [stderr]    Compiling xml-rs v0.8.0
[INFO] [stderr]    Compiling pkg-config v0.3.27
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]     Checking bytemuck v1.13.1
[INFO] [stderr]     Checking simd-adler32 v0.3.5
[INFO] [stderr]    Compiling crossbeam-utils v0.8.15
[INFO] [stderr]    Compiling crc32fast v1.2.0
[INFO] [stderr]    Compiling memoffset v0.8.0
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.14
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling serde v1.0.163
[INFO] [stderr]     Checking dlib v0.5.0
[INFO] [stderr]     Checking once_cell v1.17.1
[INFO] [stderr]    Compiling num-bigint v0.4.3
[INFO] [stderr]    Compiling rayon-core v1.11.0
[INFO] [stderr]    Compiling num-rational v0.4.1
[INFO] [stderr]     Checking piston-float v1.0.0
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling futures-core v0.3.28
[INFO] [stderr]     Checking either v1.5.3
[INFO] [stderr]    Compiling slotmap v1.0.6
[INFO] [stderr]     Checking piston-viewport v1.0.0
[INFO] [stderr]     Checking miniz_oxide v0.7.1
[INFO] [stderr]     Checking fdeflate v0.3.0
[INFO] [stderr]     Checking downcast-rs v1.1.1
[INFO] [stderr]    Compiling thiserror v1.0.40
[INFO] [stderr]     Checking spin v0.9.8
[INFO] [stderr]    Compiling gl_generator v0.14.0
[INFO] [stderr]    Compiling wayland-sys v0.29.5
[INFO] [stderr]    Compiling x11-dl v2.21.0
[INFO] [stderr]     Checking piston-graphics_api_version v1.0.1
[INFO] [stderr]     Checking futures-sink v0.3.28
[INFO] [stderr]     Checking weezl v0.1.7
[INFO] [stderr]    Compiling smithay-client-toolkit v0.16.0
[INFO] [stderr]     Checking zune-inflate v0.2.54
[INFO] [stderr]     Checking miniz_oxide v0.6.2
[INFO] [stderr]     Checking ttf-parser v0.19.0
[INFO] [stderr]     Checking crossbeam-channel v0.5.8
[INFO] [stderr]     Checking nom v7.1.3
[INFO] [stderr]    Compiling paste v1.0.12
[INFO] [stderr]    Compiling getrandom v0.1.13
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[INFO] [stderr]     Checking crossbeam-deque v0.8.3
[INFO] [stderr]     Checking ttf-parser v0.15.2
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[INFO] [stderr]     Checking half v2.2.1
[INFO] [stderr]     Checking gif v0.12.0
[INFO] [stderr]    Compiling syn v2.0.16
[INFO] [stderr]    Compiling wayland-scanner v0.29.5
[INFO] [stderr]     Checking num-complex v0.4.3
[INFO] [stderr]     Checking tiny-skia-path v0.8.4
[INFO] [stderr]    Compiling glutin_egl_sys v0.5.0
[INFO] [stderr]     Checking png v0.17.8
[INFO] [stderr]    Compiling glutin_glx_sys v0.4.0
[INFO] [stderr]     Checking num_cpus v1.11.1
[INFO] [stderr]     Checking nix v0.24.3
[INFO] [stderr]     Checking getrandom v0.2.9
[INFO] [stderr]     Checking nix v0.25.1
[INFO] [stderr]     Checking memmap2 v0.5.10
[INFO] [stderr]     Checking nanorand v0.7.0
[INFO] [stderr]    Compiling wayland-sys v0.30.1
[INFO] [stderr]    Compiling gl_generator v0.13.1
[INFO] [stderr]     Checking safe_arch v0.6.0
[INFO] [stderr]     Checking rayon v1.7.0
[INFO] [stderr]     Checking qoi v0.4.1
[INFO] [stderr]     Checking draw_state v0.8.0
[INFO] [stderr]    Compiling serde_json v1.0.96
[INFO] [stderr]     Checking owned_ttf_parser v0.19.0
[INFO] [stderr]     Checking arrayvec v0.7.2
[INFO] [stderr]     Checking wide v0.7.8
[INFO] [stderr]     Checking ab_glyph v0.2.21
[INFO] [stderr]     Checking tiny-skia v0.8.4
[INFO] [stderr]    Compiling gl v0.13.0
[INFO] [stderr]     Checking wayland-commons v0.29.5
[INFO] [stderr]     Checking approx v0.5.1
[INFO] [stderr]    Compiling gl_generator v0.11.0
[INFO] [stderr]    Compiling glutin v0.30.8
[INFO] [stderr]    Compiling matrixmultiply v0.3.7
[INFO] [stderr]     Checking gfx_core v0.9.2
[INFO] [stderr]    Compiling wayland-client v0.29.5
[INFO] [stderr]    Compiling wayland-protocols v0.29.5
[INFO] [stderr]     Checking xcursor v0.3.4
[INFO] [stderr]    Compiling winit v0.28.6
[INFO] [stderr]     Checking ppv-lite86 v0.2.6
[INFO] [stderr]     Checking piston-texture v0.9.0
[INFO] [stderr]     Checking owned_ttf_parser v0.15.2
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rusttype v0.9.3
[INFO] [stderr]     Checking mio v0.8.6
[INFO] [stderr]     Checking c2-chacha v0.2.3
[INFO] [stderr]     Checking shader_version v0.7.0
[INFO] [stderr]    Compiling gfx_gl v0.6.0
[INFO] [stderr]     Checking vecmath v1.0.0
[INFO] [stderr]    Compiling glutin-winit v0.3.0
[INFO] [stderr]    Compiling num-iter v0.1.43
[INFO] [stderr]     Checking read_color v1.0.0
[INFO] [stderr]     Checking interpolation v0.2.0
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling itoa v1.0.6
[INFO] [stderr]     Checking gfx v0.18.2
[INFO] [stderr]     Checking rand_chacha v0.2.1
[INFO] [stderr]     Checking piston2d-graphics v0.43.0
[INFO] [stderr]    Compiling ryu v1.0.13
[INFO] [stderr]     Checking spin_sleep v1.1.1
[INFO] [stderr]     Checking piston-shaders_graphics2d v0.4.0
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking simba v0.7.3
[INFO] [stderr]    Compiling lazy_static v0.2.11
[INFO] [stderr]     Checking custom_derive v0.1.7
[INFO] [stderr]    Compiling thread-id v3.3.0
[INFO] [stderr]     Checking num v0.4.0
[INFO] [stderr]     Checking simba v0.8.1
[INFO] [stderr]     Checking conv v0.3.3
[INFO] [stderr]     Checking itertools v0.10.5
[INFO] [stderr]     Checking jpeg-decoder v0.3.0
[INFO] [stderr]     Checking rand_distr v0.2.2
[INFO] [stderr]     Checking tiff v0.8.1
[INFO] [stderr]    Compiling pin-project-internal v1.1.0
[INFO] [stderr]    Compiling serde_derive v1.0.163
[INFO] [stderr]    Compiling thiserror-impl v1.0.40
[INFO] [stderr]     Checking wayland-cursor v0.29.5
[INFO] [stderr]     Checking calloop v0.10.5
[INFO] [stderr]     Checking pin-project v1.1.0
[INFO] [stderr]     Checking flume v0.10.14
[INFO] [stderr]     Checking exr v1.6.3
[INFO] [stderr]     Checking gfx_device_gl v0.16.2
[INFO] [stderr]    Compiling nalgebra-macros v0.2.0
[INFO] [stderr]     Checking pistoncore-input v1.0.1
[INFO] [stderr]    Compiling flame v0.2.2
[INFO] [stderr]    Compiling flamer v0.5.0
[INFO] [stderr]     Checking image v0.24.6
[INFO] [stderr]     Checking nalgebra v0.30.1
[INFO] [stderr]     Checking pistoncore-window v0.47.1
[INFO] [stderr]     Checking nalgebra v0.32.2
[INFO] [stderr]     Checking pistoncore-event_loop v0.53.1
[INFO] [stderr]     Checking piston v0.53.2
[INFO] [stderr]     Checking piston-gfx_texture v0.44.0
[INFO] [stderr]     Checking piston2d-opengl_graphics v0.82.0
[INFO] [stderr]     Checking piston2d-gfx_graphics v0.79.0
[INFO] [stderr]     Checking imageproc v0.23.0
[INFO] [stderr]     Checking sctk-adwaita v0.5.4
[INFO] [stderr]     Checking pistoncore-glutin_window v0.71.0
[INFO] [stderr]     Checking piston_window v0.128.0
[INFO] [stderr]     Checking toy_tracer v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `crate::world::Traceable`
[INFO] [stdout]  --> src/ray.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::world::Traceable;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::world::Traceable`
[INFO] [stdout]  --> src/ray.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::world::Traceable;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `r`
[INFO] [stdout]   --> src/world.rs:59:22
[INFO] [stdout]    |
[INFO] [stdout] 59 |     fn normal(&self, r: Ray) -> Ray {
[INFO] [stdout]    |                      ^ help: if this is intentional, prefix it with an underscore: `_r`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `args`
[INFO] [stdout]   --> src/main.rs:86:26
[INFO] [stdout]    |
[INFO] [stdout] 86 |     fn update(&mut self, args: &UpdateArgs) {
[INFO] [stdout]    |                          ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `to_trace` is assigned to, but never used
[INFO] [stdout]    --> src/main.rs:104:17
[INFO] [stdout]     |
[INFO] [stdout] 104 |             let mut to_trace: &Box<dyn Traceable> = self.objects[0].borrow();
[INFO] [stdout]     |                 ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: consider using `_to_trace` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `to_trace` is never read
[INFO] [stdout]    --> src/main.rs:109:21
[INFO] [stdout]     |
[INFO] [stdout] 109 |                     to_trace = obj;
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cn`
[INFO] [stdout]    --> src/main.rs:127:13
[INFO] [stdout]     |
[INFO] [stdout] 127 |         let cn = nl::Vector3::new(CAM_X, CAM_Y, CAM_Z) + (SCR_Z * nl::Vector3::new(CAM_P.sin() * CAM_T.cos(),
[INFO] [stdout]     |             ^^ help: if this is intentional, prefix it with an underscore: `_cn`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `br`
[INFO] [stdout]    --> src/main.rs:145:13
[INFO] [stdout]     |
[INFO] [stdout] 145 |         let br = nl::Vector3::new(CAM_X, CAM_Y, CAM_Z) +
[INFO] [stdout]     |             ^^ help: if this is intentional, prefix it with an underscore: `_br`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `pix_colour`
[INFO] [stdout]    --> src/main.rs:162:21
[INFO] [stdout]     |
[INFO] [stdout] 162 |                 let pix_colour = self.recursive_trace(r);
[INFO] [stdout]     |                     ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_pix_colour`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `pos`
[INFO] [stdout]    --> src/main.rs:218:25
[INFO] [stdout]     |
[INFO] [stdout] 218 |         e.mouse_cursor(|pos| {
[INFO] [stdout]     |                         ^^^ help: if this is intentional, prefix it with an underscore: `_pos`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `r`
[INFO] [stdout]    --> src/main.rs:254:21
[INFO] [stdout]     |
[INFO] [stdout] 254 |         if let Some(r) = e.render_args() {
[INFO] [stdout]     |                     ^ help: if this is intentional, prefix it with an underscore: `_r`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `r`
[INFO] [stdout]   --> src/world.rs:59:22
[INFO] [stdout]    |
[INFO] [stdout] 59 |     fn normal(&self, r: Ray) -> Ray {
[INFO] [stdout]    |                      ^ help: if this is intentional, prefix it with an underscore: `_r`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `args`
[INFO] [stdout]   --> src/main.rs:86:26
[INFO] [stdout]    |
[INFO] [stdout] 86 |     fn update(&mut self, args: &UpdateArgs) {
[INFO] [stdout]    |                          ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `to_trace` is assigned to, but never used
[INFO] [stdout]    --> src/main.rs:104:17
[INFO] [stdout]     |
[INFO] [stdout] 104 |             let mut to_trace: &Box<dyn Traceable> = self.objects[0].borrow();
[INFO] [stdout]     |                 ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: consider using `_to_trace` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `to_trace` is never read
[INFO] [stdout]    --> src/main.rs:109:21
[INFO] [stdout]     |
[INFO] [stdout] 109 |                     to_trace = obj;
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cn`
[INFO] [stdout]    --> src/main.rs:127:13
[INFO] [stdout]     |
[INFO] [stdout] 127 |         let cn = nl::Vector3::new(CAM_X, CAM_Y, CAM_Z) + (SCR_Z * nl::Vector3::new(CAM_P.sin() * CAM_T.cos(),
[INFO] [stdout]     |             ^^ help: if this is intentional, prefix it with an underscore: `_cn`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `br`
[INFO] [stdout]    --> src/main.rs:145:13
[INFO] [stdout]     |
[INFO] [stdout] 145 |         let br = nl::Vector3::new(CAM_X, CAM_Y, CAM_Z) +
[INFO] [stdout]     |             ^^ help: if this is intentional, prefix it with an underscore: `_br`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `pix_colour`
[INFO] [stdout]    --> src/main.rs:162:21
[INFO] [stdout]     |
[INFO] [stdout] 162 |                 let pix_colour = self.recursive_trace(r);
[INFO] [stdout]     |                     ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_pix_colour`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `pos`
[INFO] [stdout]    --> src/main.rs:218:25
[INFO] [stdout]     |
[INFO] [stdout] 218 |         e.mouse_cursor(|pos| {
[INFO] [stdout]     |                         ^^^ help: if this is intentional, prefix it with an underscore: `_pos`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `r`
[INFO] [stdout]    --> src/main.rs:254:21
[INFO] [stdout]     |
[INFO] [stdout] 254 |         if let Some(r) = e.render_args() {
[INFO] [stdout]     |                     ^ help: if this is intentional, prefix it with an underscore: `_r`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 41.46s
[INFO] running `Command { std: "docker" "inspect" "72988505e34adc3dbb33b95a300ca8d43e5a0a0b663eb80bbd7baaefd8d72ccb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "72988505e34adc3dbb33b95a300ca8d43e5a0a0b663eb80bbd7baaefd8d72ccb", kill_on_drop: false }`
[INFO] [stdout] 72988505e34adc3dbb33b95a300ca8d43e5a0a0b663eb80bbd7baaefd8d72ccb
