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[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/lc0305/rust_tracer" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flc0305%2Frust_tracer", kill_on_drop: false }`
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[INFO] checking lc0305/rust_tracer against master#1f12b9b0fdbe735968ac002792a720f0ba4faca6 for crater-rollup-uwu
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flc0305%2Frust_tracer" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
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[INFO] validating manifest of git repo https://github.com/lc0305/rust_tracer on toolchain 1f12b9b0fdbe735968ac002792a720f0ba4faca6
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[INFO] crate git repo https://github.com/lc0305/rust_tracer already has a lockfile, it will not be regenerated
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[INFO] [stdout] warning: unused variable: `intersection`
[INFO] [stdout]   --> src/objects/mod.rs:92:22
[INFO] [stdout]    |
[INFO] [stdout] 92 |     fn get_color(&self, intersection: &Array1<f32>) -> &Array1<f32> {
[INFO] [stdout]    |                         ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_intersection`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `intersection`
[INFO] [stdout]    --> src/objects/mod.rs:160:23
[INFO] [stdout]     |
[INFO] [stdout] 160 |     fn get_normal(&self, intersection: &Array1<f32>) -> Array1<f32> {
[INFO] [stdout]     |                          ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_intersection`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `scope`
[INFO] [stdout]    --> src/raytracer/mod.rs:178:13
[INFO] [stdout]     |
[INFO] [stdout] 178 |         if let Ok(scope) = scope_result {
[INFO] [stdout]     |                   ^^^^^ help: if this is intentional, prefix it with an underscore: `_scope`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `handle`
[INFO] [stdout]    --> src/raytracer/mod.rs:137:9
[INFO] [stdout]     |
[INFO] [stdout] 137 |                 let handle = scope.spawn(move |_| {
[INFO] [stdout]     |                     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_handle`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `current_depth`
[INFO] [stdout]    --> src/raytracer/mod.rs:151:12
[INFO] [stdout]     |
[INFO] [stdout] 151 | ...                   for current_depth in 0..self.depth_max {
[INFO] [stdout]     |                           ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_current_depth`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `object`
[INFO] [stdout]    --> src/raytracer/mod.rs:209:22
[INFO] [stdout]     |
[INFO] [stdout] 209 |             .filter(|&(index, object)| index != obj_idx)
[INFO] [stdout]     |                               ^^^^^^ help: if this is intentional, prefix it with an underscore: `_object`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `index`
[INFO] [stdout]    --> src/raytracer/mod.rs:210:11
[INFO] [stdout]     |
[INFO] [stdout] 210 |             .map(|(index, object)| object.intersect(&s, &to_L))
[INFO] [stdout]     |                    ^^^^^ help: if this is intentional, prefix it with an underscore: `_index`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:16:6
[INFO] [stdout]    |
[INFO] [stdout] 16 |     let mut scene = Arc::get_mut(&mut scene_arc).unwrap();
[INFO] [stdout]    |         ----^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:28:6
[INFO] [stdout]    |
[INFO] [stdout] 28 |     let mut scene = Arc::get_mut(&mut scene_arc).unwrap();
[INFO] [stdout]    |         ----^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `clear_screen` is never used
[INFO] [stdout]  --> src/helper/mod.rs:6:8
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub fn clear_screen() {
[INFO] [stdout]   |        ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/raytracer/mod.rs:44:9
[INFO] [stdout]    |
[INFO] [stdout] 43 | impl Camera {
[INFO] [stdout]    | ----------- associated function in this implementation
[INFO] [stdout] 44 |     pub fn new(position: Vector3D, direction: Vector3D) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `def_diffuse_c` and `def_specular_c` are never read
[INFO] [stdout]   --> src/raytracer/mod.rs:86:2
[INFO] [stdout]    |
[INFO] [stdout] 84 | pub struct RayTracer {
[INFO] [stdout]    |            --------- fields in this struct
[INFO] [stdout] 85 |     ambient: f32,
[INFO] [stdout] 86 |     def_diffuse_c: f32,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 87 |     def_specular_c: f32,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `M` should have a snake case name
[INFO] [stdout]    --> src/raytracer/mod.rs:198:7
[INFO] [stdout]     |
[INFO] [stdout] 198 |         let M = ray_origin + &(ray_direction * t);
[INFO] [stdout]     |             ^ help: convert the identifier to snake case: `m`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `N` should have a snake case name
[INFO] [stdout]    --> src/raytracer/mod.rs:200:7
[INFO] [stdout]     |
[INFO] [stdout] 200 |         let N = object.get_normal(&M);
[INFO] [stdout]     |             ^ help: convert the identifier to snake case: `n`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `to_L` should have a snake case name
[INFO] [stdout]    --> src/raytracer/mod.rs:202:7
[INFO] [stdout]     |
[INFO] [stdout] 202 |         let to_L = normalize(&self.light.direction - &M);
[INFO] [stdout]     |             ^^^^ help: convert the identifier to snake case: `to_l`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `to_O` should have a snake case name
[INFO] [stdout]    --> src/raytracer/mod.rs:220:7
[INFO] [stdout]     |
[INFO] [stdout] 220 |         let to_O = normalize(&self.camera.position - &M);
[INFO] [stdout]     |             ^^^^ help: convert the identifier to snake case (notice the capitalization): `to_o`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: structure field `M` should have a snake case name
[INFO] [stdout]    --> src/raytracer/mod.rs:237:3
[INFO] [stdout]     |
[INFO] [stdout] 237 |         M: Array1<f32>,
[INFO] [stdout]     |         ^ help: convert the identifier to snake case: `m`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: structure field `N` should have a snake case name
[INFO] [stdout]    --> src/raytracer/mod.rs:238:3
[INFO] [stdout]     |
[INFO] [stdout] 238 |         N: Array1<f32>,
[INFO] [stdout]     |         ^ help: convert the identifier to snake case: `n`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 18 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `intersection`
[INFO] [stdout]   --> src/objects/mod.rs:92:22
[INFO] [stdout]    |
[INFO] [stdout] 92 |     fn get_color(&self, intersection: &Array1<f32>) -> &Array1<f32> {
[INFO] [stdout]    |                         ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_intersection`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `intersection`
[INFO] [stdout]    --> src/objects/mod.rs:160:23
[INFO] [stdout]     |
[INFO] [stdout] 160 |     fn get_normal(&self, intersection: &Array1<f32>) -> Array1<f32> {
[INFO] [stdout]     |                          ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_intersection`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `scope`
[INFO] [stdout]    --> src/raytracer/mod.rs:178:13
[INFO] [stdout]     |
[INFO] [stdout] 178 |         if let Ok(scope) = scope_result {
[INFO] [stdout]     |                   ^^^^^ help: if this is intentional, prefix it with an underscore: `_scope`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `handle`
[INFO] [stdout]    --> src/raytracer/mod.rs:137:9
[INFO] [stdout]     |
[INFO] [stdout] 137 |                 let handle = scope.spawn(move |_| {
[INFO] [stdout]     |                     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_handle`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `current_depth`
[INFO] [stdout]    --> src/raytracer/mod.rs:151:12
[INFO] [stdout]     |
[INFO] [stdout] 151 | ...                   for current_depth in 0..self.depth_max {
[INFO] [stdout]     |                           ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_current_depth`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `object`
[INFO] [stdout]    --> src/raytracer/mod.rs:209:22
[INFO] [stdout]     |
[INFO] [stdout] 209 |             .filter(|&(index, object)| index != obj_idx)
[INFO] [stdout]     |                               ^^^^^^ help: if this is intentional, prefix it with an underscore: `_object`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `index`
[INFO] [stdout]    --> src/raytracer/mod.rs:210:11
[INFO] [stdout]     |
[INFO] [stdout] 210 |             .map(|(index, object)| object.intersect(&s, &to_L))
[INFO] [stdout]     |                    ^^^^^ help: if this is intentional, prefix it with an underscore: `_index`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:16:6
[INFO] [stdout]    |
[INFO] [stdout] 16 |     let mut scene = Arc::get_mut(&mut scene_arc).unwrap();
[INFO] [stdout]    |         ----^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:28:6
[INFO] [stdout]    |
[INFO] [stdout] 28 |     let mut scene = Arc::get_mut(&mut scene_arc).unwrap();
[INFO] [stdout]    |         ----^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `clear_screen` is never used
[INFO] [stdout]  --> src/helper/mod.rs:6:8
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub fn clear_screen() {
[INFO] [stdout]   |        ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/raytracer/mod.rs:44:9
[INFO] [stdout]    |
[INFO] [stdout] 43 | impl Camera {
[INFO] [stdout]    | ----------- associated function in this implementation
[INFO] [stdout] 44 |     pub fn new(position: Vector3D, direction: Vector3D) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `def_diffuse_c` and `def_specular_c` are never read
[INFO] [stdout]   --> src/raytracer/mod.rs:86:2
[INFO] [stdout]    |
[INFO] [stdout] 84 | pub struct RayTracer {
[INFO] [stdout]    |            --------- fields in this struct
[INFO] [stdout] 85 |     ambient: f32,
[INFO] [stdout] 86 |     def_diffuse_c: f32,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 87 |     def_specular_c: f32,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `M` should have a snake case name
[INFO] [stdout]    --> src/raytracer/mod.rs:198:7
[INFO] [stdout]     |
[INFO] [stdout] 198 |         let M = ray_origin + &(ray_direction * t);
[INFO] [stdout]     |             ^ help: convert the identifier to snake case: `m`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `N` should have a snake case name
[INFO] [stdout]    --> src/raytracer/mod.rs:200:7
[INFO] [stdout]     |
[INFO] [stdout] 200 |         let N = object.get_normal(&M);
[INFO] [stdout]     |             ^ help: convert the identifier to snake case: `n`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `to_L` should have a snake case name
[INFO] [stdout]    --> src/raytracer/mod.rs:202:7
[INFO] [stdout]     |
[INFO] [stdout] 202 |         let to_L = normalize(&self.light.direction - &M);
[INFO] [stdout]     |             ^^^^ help: convert the identifier to snake case: `to_l`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `to_O` should have a snake case name
[INFO] [stdout]    --> src/raytracer/mod.rs:220:7
[INFO] [stdout]     |
[INFO] [stdout] 220 |         let to_O = normalize(&self.camera.position - &M);
[INFO] [stdout]     |             ^^^^ help: convert the identifier to snake case (notice the capitalization): `to_o`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: structure field `M` should have a snake case name
[INFO] [stdout]    --> src/raytracer/mod.rs:237:3
[INFO] [stdout]     |
[INFO] [stdout] 237 |         M: Array1<f32>,
[INFO] [stdout]     |         ^ help: convert the identifier to snake case: `m`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: structure field `N` should have a snake case name
[INFO] [stdout]    --> src/raytracer/mod.rs:238:3
[INFO] [stdout]     |
[INFO] [stdout] 238 |         N: Array1<f32>,
[INFO] [stdout]     |         ^ help: convert the identifier to snake case: `n`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 18 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 13.63s
[INFO] running `Command { std: "docker" "inspect" "5aa10db6964bb81916858c6ef487ca1bac9cf5990723a709240f1a9f30afcb50", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5aa10db6964bb81916858c6ef487ca1bac9cf5990723a709240f1a9f30afcb50", kill_on_drop: false }`
[INFO] [stdout] 5aa10db6964bb81916858c6ef487ca1bac9cf5990723a709240f1a9f30afcb50
[INFO] checking lc0305/rust_tracer against try#f9935d29d867449445ee008640ccca1bf1ae0889+rustflags=-Dtail_expr_drop_order for crater-rollup-uwu
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flc0305%2Frust_tracer" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/lc0305/rust_tracer on toolchain f9935d29d867449445ee008640ccca1bf1ae0889
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f9935d29d867449445ee008640ccca1bf1ae0889" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/lc0305/rust_tracer
[INFO] finished tweaking git repo https://github.com/lc0305/rust_tracer
[INFO] tweaked toml for git repo https://github.com/lc0305/rust_tracer written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/lc0305/rust_tracer 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" "+f9935d29d867449445ee008640ccca1bf1ae0889" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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_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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+f9935d29d867449445ee008640ccca1bf1ae0889" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8167a21c7b750ba787c554283c00c13513b3fe5059c670e34a3fc50c0fba344e
[INFO] running `Command { std: "docker" "start" "-a" "8167a21c7b750ba787c554283c00c13513b3fe5059c670e34a3fc50c0fba344e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8167a21c7b750ba787c554283c00c13513b3fe5059c670e34a3fc50c0fba344e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8167a21c7b750ba787c554283c00c13513b3fe5059c670e34a3fc50c0fba344e", kill_on_drop: false }`
[INFO] [stdout] 8167a21c7b750ba787c554283c00c13513b3fe5059c670e34a3fc50c0fba344e
[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 -Dtail_expr_drop_order" "-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+f9935d29d867449445ee008640ccca1bf1ae0889" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] af770584bf86eba404f8ad0ea3630d6a1c578f249256b8e853252569b7b8a1cd
[INFO] running `Command { std: "docker" "start" "-a" "af770584bf86eba404f8ad0ea3630d6a1c578f249256b8e853252569b7b8a1cd", kill_on_drop: false }`
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]    Compiling libc v0.2.73
[INFO] [stderr]    Compiling memoffset v0.5.5
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]    Compiling rayon-core v1.7.1
[INFO] [stderr]     Checking adler32 v1.1.0
[INFO] [stderr]    Compiling rayon v1.3.1
[INFO] [stderr]    Compiling crc32fast v1.2.0
[INFO] [stderr]     Checking either v1.5.3
[INFO] [stderr]     Checking miniz_oxide v0.3.7
[INFO] [stderr]    Compiling num-iter v0.1.41
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]    Compiling num-rational v0.3.0
[INFO] [stderr]     Checking lzw v0.10.0
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking deflate v0.8.6
[INFO] [stderr]     Checking crossbeam-queue v0.2.3
[INFO] [stderr]    Compiling ndarray v0.13.1
[INFO] [stderr]     Checking regex-syntax v0.6.18
[INFO] [stderr]     Checking color_quant v1.0.1
[INFO] [stderr]     Checking tiff v0.5.0
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[INFO] [stderr]     Checking gif v0.10.3
[INFO] [stderr]     Checking crossbeam-deque v0.7.3
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[INFO] [stderr]     Checking bytemuck v1.2.0
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]     Checking scoped_threadpool v0.1.9
[INFO] [stderr]     Checking crossbeam v0.7.3
[INFO] [stderr]     Checking itertools v0.9.0
[INFO] [stderr]     Checking regex v1.3.9
[INFO] [stderr]     Checking console v0.11.3
[INFO] [stderr]     Checking jpeg-decoder v0.1.20
[INFO] [stderr]     Checking image v0.23.7
[INFO] [stderr]     Checking raytracer v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `intersection`
[INFO] [stdout]   --> src/objects/mod.rs:92:22
[INFO] [stdout]    |
[INFO] [stdout] 92 |     fn get_color(&self, intersection: &Array1<f32>) -> &Array1<f32> {
[INFO] [stdout]    |                         ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_intersection`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `intersection`
[INFO] [stdout]    --> src/objects/mod.rs:160:23
[INFO] [stdout]     |
[INFO] [stdout] 160 |     fn get_normal(&self, intersection: &Array1<f32>) -> Array1<f32> {
[INFO] [stdout]     |                          ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_intersection`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `scope`
[INFO] [stdout]    --> src/raytracer/mod.rs:178:13
[INFO] [stdout]     |
[INFO] [stdout] 178 |         if let Ok(scope) = scope_result {
[INFO] [stdout]     |                   ^^^^^ help: if this is intentional, prefix it with an underscore: `_scope`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `handle`
[INFO] [stdout]    --> src/raytracer/mod.rs:137:9
[INFO] [stdout]     |
[INFO] [stdout] 137 |                 let handle = scope.spawn(move |_| {
[INFO] [stdout]     |                     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_handle`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `current_depth`
[INFO] [stdout]    --> src/raytracer/mod.rs:151:12
[INFO] [stdout]     |
[INFO] [stdout] 151 | ...                   for current_depth in 0..self.depth_max {
[INFO] [stdout]     |                           ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_current_depth`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `object`
[INFO] [stdout]    --> src/raytracer/mod.rs:209:22
[INFO] [stdout]     |
[INFO] [stdout] 209 |             .filter(|&(index, object)| index != obj_idx)
[INFO] [stdout]     |                               ^^^^^^ help: if this is intentional, prefix it with an underscore: `_object`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `index`
[INFO] [stdout]    --> src/raytracer/mod.rs:210:11
[INFO] [stdout]     |
[INFO] [stdout] 210 |             .map(|(index, object)| object.intersect(&s, &to_L))
[INFO] [stdout]     |                    ^^^^^ help: if this is intentional, prefix it with an underscore: `_index`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:16:6
[INFO] [stdout]    |
[INFO] [stdout] 16 |     let mut scene = Arc::get_mut(&mut scene_arc).unwrap();
[INFO] [stdout]    |         ----^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `intersection`
[INFO] [stdout]   --> src/objects/mod.rs:92:22
[INFO] [stdout]    |
[INFO] [stdout] 92 |     fn get_color(&self, intersection: &Array1<f32>) -> &Array1<f32> {
[INFO] [stdout]    |                         ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_intersection`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `intersection`
[INFO] [stdout]    --> src/objects/mod.rs:160:23
[INFO] [stdout]     |
[INFO] [stdout] 160 |     fn get_normal(&self, intersection: &Array1<f32>) -> Array1<f32> {
[INFO] [stdout]     |                          ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_intersection`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `scope`
[INFO] [stdout]    --> src/raytracer/mod.rs:178:13
[INFO] [stdout]     |
[INFO] [stdout] 178 |         if let Ok(scope) = scope_result {
[INFO] [stdout]     |                   ^^^^^ help: if this is intentional, prefix it with an underscore: `_scope`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `handle`
[INFO] [stdout]    --> src/raytracer/mod.rs:137:9
[INFO] [stdout]     |
[INFO] [stdout] 137 |                 let handle = scope.spawn(move |_| {
[INFO] [stdout]     |                     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_handle`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `current_depth`
[INFO] [stdout]    --> src/raytracer/mod.rs:151:12
[INFO] [stdout]     |
[INFO] [stdout] 151 | ...                   for current_depth in 0..self.depth_max {
[INFO] [stdout]     |                           ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_current_depth`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:28:6
[INFO] [stdout]    |
[INFO] [stdout] 28 |     let mut scene = Arc::get_mut(&mut scene_arc).unwrap();
[INFO] [stdout]    |         ----^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `clear_screen` is never used
[INFO] [stdout]  --> src/helper/mod.rs:6:8
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub fn clear_screen() {
[INFO] [stdout]   |        ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/raytracer/mod.rs:44:9
[INFO] [stdout]    |
[INFO] [stdout] 43 | impl Camera {
[INFO] [stdout]    | ----------- associated function in this implementation
[INFO] [stdout] 44 |     pub fn new(position: Vector3D, direction: Vector3D) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `def_diffuse_c` and `def_specular_c` are never read
[INFO] [stdout]   --> src/raytracer/mod.rs:86:2
[INFO] [stdout]    |
[INFO] [stdout] 84 | pub struct RayTracer {
[INFO] [stdout]    |            --------- fields in this struct
[INFO] [stdout] 85 |     ambient: f32,
[INFO] [stdout] 86 |     def_diffuse_c: f32,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 87 |     def_specular_c: f32,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021
[INFO] [stdout]   --> src/objects/mod.rs:52:12
[INFO] [stdout]    |
[INFO] [stdout] 51 |       pub fn new(position: Vector3D, radius: f32, color: Array1<f32>, reflection: f32, diffuse_c: f32, specular_c: f32) -> Arc<Self> {
[INFO] [stdout]    |                                                   ------------------ these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout] 52 |           Arc::new(Self {     
[INFO] [stdout]    |  __________________^
[INFO] [stdout] 53 | |             position: position.to_ndarray(), 
[INFO] [stdout] 54 | |             radius, 
[INFO] [stdout] 55 | |             color, 
[INFO] [stdout] ...  |
[INFO] [stdout] 58 | |             specular_c, 
[INFO] [stdout] 59 | |         })
[INFO] [stdout]    | |_________^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this changes meaning in Rust 2024
[INFO] [stdout]    = note: for more information, see issue #123739 <https://github.com/rust-lang/rust/issues/123739>
[INFO] [stdout]    = note: requested on the command line with `-D tail-expr-drop-order`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021
[INFO] [stdout]    --> src/objects/mod.rs:125:12
[INFO] [stdout]     |
[INFO] [stdout] 124 |       pub fn new(postion: Vector3D, normal: Vector3D, reflection: f32, diffuse_c: f32, specular_c: f32, colors: (Array1::<f32>, Array1::<f32>)) -...
[INFO] [stdout]     |                                                                                                         -------------------------------------- these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout] 125 |           Arc::new(Checkerboard {     
[INFO] [stdout]     |  __________________^
[INFO] [stdout] 126 | |             postion: postion.to_ndarray(),
[INFO] [stdout] 127 | |             normal: normal.to_ndarray(),
[INFO] [stdout] 128 | |             reflection,
[INFO] [stdout] ...   |
[INFO] [stdout] 132 | |             black: colors.0,
[INFO] [stdout] 133 | |         })
[INFO] [stdout]     | |_________^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this changes meaning in Rust 2024
[INFO] [stdout]     = note: for more information, see issue #123739 <https://github.com/rust-lang/rust/issues/123739>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021
[INFO] [stdout]   --> src/raytracer/mod.rs:70:15
[INFO] [stdout]    |
[INFO] [stdout] 67 |     pub fn new(color: Array1<f32>, direction: Vector3D) -> Self {
[INFO] [stdout]    |                ------------------ these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout] ...
[INFO] [stdout] 70 |             direction: direction.to_ndarray(),
[INFO] [stdout]    |                        ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this changes meaning in Rust 2024
[INFO] [stdout]    = note: for more information, see issue #123739 <https://github.com/rust-lang/rust/issues/123739>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `object`
[INFO] [stdout]    --> src/raytracer/mod.rs:209:22
[INFO] [stdout]     |
[INFO] [stdout] 209 |             .filter(|&(index, object)| index != obj_idx)
[INFO] [stdout]     |                               ^^^^^^ help: if this is intentional, prefix it with an underscore: `_object`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `M` should have a snake case name
[INFO] [stdout]    --> src/raytracer/mod.rs:198:7
[INFO] [stdout]     |
[INFO] [stdout] 198 |         let M = ray_origin + &(ray_direction * t);
[INFO] [stdout]     |             ^ help: convert the identifier to snake case: `m`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `N` should have a snake case name
[INFO] [stdout]    --> src/raytracer/mod.rs:200:7
[INFO] [stdout]     |
[INFO] [stdout] 200 |         let N = object.get_normal(&M);
[INFO] [stdout]     |             ^ help: convert the identifier to snake case: `n`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `to_L` should have a snake case name
[INFO] [stdout]    --> src/raytracer/mod.rs:202:7
[INFO] [stdout]     |
[INFO] [stdout] 202 |         let to_L = normalize(&self.light.direction - &M);
[INFO] [stdout]     |             ^^^^ help: convert the identifier to snake case: `to_l`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `index`
[INFO] [stdout]    --> src/raytracer/mod.rs:210:11
[INFO] [stdout]     |
[INFO] [stdout] 210 |             .map(|(index, object)| object.intersect(&s, &to_L))
[INFO] [stdout]     |                    ^^^^^ help: if this is intentional, prefix it with an underscore: `_index`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `to_O` should have a snake case name
[INFO] [stdout]    --> src/raytracer/mod.rs:220:7
[INFO] [stdout]     |
[INFO] [stdout] 220 |         let to_O = normalize(&self.camera.position - &M);
[INFO] [stdout]     |             ^^^^ help: convert the identifier to snake case (notice the capitalization): `to_o`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: structure field `M` should have a snake case name
[INFO] [stdout]    --> src/raytracer/mod.rs:237:3
[INFO] [stdout]     |
[INFO] [stdout] 237 |         M: Array1<f32>,
[INFO] [stdout]     |         ^ help: convert the identifier to snake case: `m`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: structure field `N` should have a snake case name
[INFO] [stdout]    --> src/raytracer/mod.rs:238:3
[INFO] [stdout]     |
[INFO] [stdout] 238 |         N: Array1<f32>,
[INFO] [stdout]     |         ^ help: convert the identifier to snake case: `n`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `raytracer` (bin "raytracer") due to 4 previous errors; 18 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: aborting due to 3 previous errors; 18 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:16:6
[INFO] [stdout]    |
[INFO] [stdout] 16 |     let mut scene = Arc::get_mut(&mut scene_arc).unwrap();
[INFO] [stdout]    |         ----^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:28:6
[INFO] [stdout]    |
[INFO] [stdout] 28 |     let mut scene = Arc::get_mut(&mut scene_arc).unwrap();
[INFO] [stdout]    |         ----^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `clear_screen` is never used
[INFO] [stdout]  --> src/helper/mod.rs:6:8
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub fn clear_screen() {
[INFO] [stdout]   |        ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/raytracer/mod.rs:44:9
[INFO] [stdout]    |
[INFO] [stdout] 43 | impl Camera {
[INFO] [stdout]    | ----------- associated function in this implementation
[INFO] [stdout] 44 |     pub fn new(position: Vector3D, direction: Vector3D) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `def_diffuse_c` and `def_specular_c` are never read
[INFO] [stdout]   --> src/raytracer/mod.rs:86:2
[INFO] [stdout]    |
[INFO] [stdout] 84 | pub struct RayTracer {
[INFO] [stdout]    |            --------- fields in this struct
[INFO] [stdout] 85 |     ambient: f32,
[INFO] [stdout] 86 |     def_diffuse_c: f32,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 87 |     def_specular_c: f32,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021
[INFO] [stdout]   --> src/objects/mod.rs:52:12
[INFO] [stdout]    |
[INFO] [stdout] 51 |       pub fn new(position: Vector3D, radius: f32, color: Array1<f32>, reflection: f32, diffuse_c: f32, specular_c: f32) -> Arc<Self> {
[INFO] [stdout]    |                                                   ------------------ these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout] 52 |           Arc::new(Self {     
[INFO] [stdout]    |  __________________^
[INFO] [stdout] 53 | |             position: position.to_ndarray(), 
[INFO] [stdout] 54 | |             radius, 
[INFO] [stdout] 55 | |             color, 
[INFO] [stdout] ...  |
[INFO] [stdout] 58 | |             specular_c, 
[INFO] [stdout] 59 | |         })
[INFO] [stdout]    | |_________^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this changes meaning in Rust 2024
[INFO] [stdout]    = note: for more information, see issue #123739 <https://github.com/rust-lang/rust/issues/123739>
[INFO] [stdout]    = note: requested on the command line with `-D tail-expr-drop-order`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021
[INFO] [stdout]    --> src/objects/mod.rs:125:12
[INFO] [stdout]     |
[INFO] [stdout] 124 |       pub fn new(postion: Vector3D, normal: Vector3D, reflection: f32, diffuse_c: f32, specular_c: f32, colors: (Array1::<f32>, Array1::<f32>)) -...
[INFO] [stdout]     |                                                                                                         -------------------------------------- these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout] 125 |           Arc::new(Checkerboard {     
[INFO] [stdout]     |  __________________^
[INFO] [stdout] 126 | |             postion: postion.to_ndarray(),
[INFO] [stdout] 127 | |             normal: normal.to_ndarray(),
[INFO] [stdout] 128 | |             reflection,
[INFO] [stdout] ...   |
[INFO] [stdout] 132 | |             black: colors.0,
[INFO] [stdout] 133 | |         })
[INFO] [stdout]     | |_________^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this changes meaning in Rust 2024
[INFO] [stdout]     = note: for more information, see issue #123739 <https://github.com/rust-lang/rust/issues/123739>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021
[INFO] [stdout]   --> src/raytracer/mod.rs:70:15
[INFO] [stdout]    |
[INFO] [stdout] 67 |     pub fn new(color: Array1<f32>, direction: Vector3D) -> Self {
[INFO] [stdout]    |                ------------------ these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout] ...
[INFO] [stdout] 70 |             direction: direction.to_ndarray(),
[INFO] [stdout]    |                        ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this changes meaning in Rust 2024
[INFO] [stdout]    = note: for more information, see issue #123739 <https://github.com/rust-lang/rust/issues/123739>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `M` should have a snake case name
[INFO] [stdout]    --> src/raytracer/mod.rs:198:7
[INFO] [stdout]     |
[INFO] [stdout] 198 |         let M = ray_origin + &(ray_direction * t);
[INFO] [stdout]     |             ^ help: convert the identifier to snake case: `m`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `N` should have a snake case name
[INFO] [stdout]    --> src/raytracer/mod.rs:200:7
[INFO] [stdout]     |
[INFO] [stdout] 200 |         let N = object.get_normal(&M);
[INFO] [stdout]     |             ^ help: convert the identifier to snake case: `n`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `to_L` should have a snake case name
[INFO] [stdout]    --> src/raytracer/mod.rs:202:7
[INFO] [stdout]     |
[INFO] [stdout] 202 |         let to_L = normalize(&self.light.direction - &M);
[INFO] [stdout]     |             ^^^^ help: convert the identifier to snake case: `to_l`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `to_O` should have a snake case name
[INFO] [stdout]    --> src/raytracer/mod.rs:220:7
[INFO] [stdout]     |
[INFO] [stdout] 220 |         let to_O = normalize(&self.camera.position - &M);
[INFO] [stdout]     |             ^^^^ help: convert the identifier to snake case (notice the capitalization): `to_o`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: structure field `M` should have a snake case name
[INFO] [stdout]    --> src/raytracer/mod.rs:237:3
[INFO] [stdout]     |
[INFO] [stdout] 237 |         M: Array1<f32>,
[INFO] [stdout]     |         ^ help: convert the identifier to snake case: `m`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: structure field `N` should have a snake case name
[INFO] [stdout]    --> src/raytracer/mod.rs:238:3
[INFO] [stdout]     |
[INFO] [stdout] 238 |         N: Array1<f32>,
[INFO] [stdout]     |         ^ help: convert the identifier to snake case: `n`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors; 18 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `raytracer` (bin "raytracer" test) due to 4 previous errors; 18 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "af770584bf86eba404f8ad0ea3630d6a1c578f249256b8e853252569b7b8a1cd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "af770584bf86eba404f8ad0ea3630d6a1c578f249256b8e853252569b7b8a1cd", kill_on_drop: false }`
[INFO] [stdout] af770584bf86eba404f8ad0ea3630d6a1c578f249256b8e853252569b7b8a1cd