[INFO] cloning repository https://github.com/eggmund/raymarcher
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/eggmund/raymarcher" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Feggmund%2Fraymarcher", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Feggmund%2Fraymarcher'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3736fad1a08da5b60ca94e7c0c04690b0ef39637
[INFO] testing eggmund/raymarcher against 1.47.0 for beta-1.48-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Feggmund%2Fraymarcher" "/workspace/builds/worker-13/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-13/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/eggmund/raymarcher on toolchain 1.47.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/eggmund/raymarcher
[INFO] finished tweaking git repo https://github.com/eggmund/raymarcher
[INFO] tweaked toml for git repo https://github.com/eggmund/raymarcher written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate git repo https://github.com/eggmund/raymarcher already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5f6b91bc8463d8845053dbaad31e34351fb6756c1c4fef428d6f9d9cd358cc26
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "5f6b91bc8463d8845053dbaad31e34351fb6756c1c4fef428d6f9d9cd358cc26", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5f6b91bc8463d8845053dbaad31e34351fb6756c1c4fef428d6f9d9cd358cc26", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5f6b91bc8463d8845053dbaad31e34351fb6756c1c4fef428d6f9d9cd358cc26", kill_on_drop: false }`
[INFO] [stdout] 5f6b91bc8463d8845053dbaad31e34351fb6756c1c4fef428d6f9d9cd358cc26
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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=warn" "-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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d30c53df99053531ce40c2c56da0655bf1ffd6ed034f2a904d7a6287e601d6c4
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "d30c53df99053531ce40c2c56da0655bf1ffd6ed034f2a904d7a6287e601d6c4", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.17
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]    Compiling num-integer v0.1.42
[INFO] [stderr]    Compiling proc-macro2 v1.0.10
[INFO] [stderr]    Compiling deflate v0.8.4
[INFO] [stderr]    Compiling tiff v0.4.0
[INFO] [stderr]    Compiling approx v0.3.2
[INFO] [stderr]    Compiling rand_distr v0.2.2
[INFO] [stderr]    Compiling rayon-core v1.7.0
[INFO] [stderr]    Compiling num-rational v0.2.4
[INFO] [stderr]    Compiling num-iter v0.1.40
[INFO] [stderr]    Compiling rayon v1.3.0
[INFO] [stderr]    Compiling quote v1.0.3
[INFO] [stderr]    Compiling png v0.16.3
[INFO] [stderr]    Compiling jpeg-decoder v0.1.18
[INFO] [stderr]    Compiling paste-impl v0.1.10
[INFO] [stderr]    Compiling image v0.23.4
[INFO] [stderr]    Compiling paste v0.1.10
[INFO] [stderr]    Compiling simba v0.1.2
[INFO] [stderr]    Compiling nalgebra v0.21.0
[INFO] [stderr]    Compiling raytracer v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `Perspective3`, `Vector2`
[INFO] [stdout]  --> src/ray.rs:1:35
[INFO] [stdout]   |
[INFO] [stdout] 1 | use na::{Point3, Point2, Vector3, Vector2, Perspective3};
[INFO] [stdout]   |                                   ^^^^^^^  ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::ray::Ray`
[INFO] [stdout]  --> src/objects.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use crate::ray::Ray;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Pixel`, `Rgba`
[INFO] [stdout]  --> src/scene.rs:1:41
[INFO] [stdout]   |
[INFO] [stdout] 1 | use image::{DynamicImage, GenericImage, Rgba, Pixel};
[INFO] [stdout]   |                                         ^^^^  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Isometry3`, `Matrix4`, `Point3`, `Vector3`
[INFO] [stdout]  --> src/scene.rs:2:10
[INFO] [stdout]   |
[INFO] [stdout] 2 | use na::{Point3, Perspective3, Vector3, Matrix4, Isometry3};
[INFO] [stdout]   |          ^^^^^^                ^^^^^^^  ^^^^^^^  ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Sphere`
[INFO] [stdout]  --> src/scene.rs:6:22
[INFO] [stdout]   |
[INFO] [stdout] 6 | use crate::objects::{Sphere, Object};
[INFO] [stdout]   |                      ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `RAY_HIT_THRESHOLD`
[INFO] [stdout]  --> src/scene.rs:7:76
[INFO] [stdout]   |
[INFO] [stdout] 7 | use crate::ray::{Ray, HitData, RAY_MAX_TRAVEL_DISTANCE, RAY_REFLECT_LIMIT, RAY_HIT_THRESHOLD};
[INFO] [stdout]   |                                                                            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Color`
[INFO] [stdout]  --> src/scene.rs:8:30
[INFO] [stdout]   |
[INFO] [stdout] 8 | use crate::lighting::{Light, Color};
[INFO] [stdout]   |                              ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Vector3`
[INFO] [stdout]  --> src/lighting.rs:2:18
[INFO] [stdout]   |
[INFO] [stdout] 2 | use na::{Point3, Vector3};
[INFO] [stdout]   |                  ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Matrix4`, `Vector3`
[INFO] [stdout]  --> src/main.rs:8:18
[INFO] [stdout]   |
[INFO] [stdout] 8 | use na::{Point3, Vector3, Matrix4};
[INFO] [stdout]   |                  ^^^^^^^  ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `color`
[INFO] [stdout]   --> src/ray.rs:28:73
[INFO] [stdout]    |
[INFO] [stdout] 28 |     pub fn new_with_color(origin: Point3<f32>, direction: Vector3<f32>, color: Color) -> Ray {
[INFO] [stdout]    |                                                                         ^^^^^ help: if this is intentional, prefix it with an underscore: `_color`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `point`
[INFO] [stdout]   --> src/objects.rs:66:26
[INFO] [stdout]    |
[INFO] [stdout] 66 |     fn get_normal(&self, point: &Point3<f32>) -> Vector3<f32> {
[INFO] [stdout]    |                          ^^^^^ help: if this is intentional, prefix it with an underscore: `_point`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/scene.rs:43:21
[INFO] [stdout]    |
[INFO] [stdout] 43 |                 for i in 0..RAY_REFLECT_LIMIT+1 {
[INFO] [stdout]    |                     ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `light_dot1`
[INFO] [stdout]   --> src/scene.rs:78:13
[INFO] [stdout]    |
[INFO] [stdout] 78 |         let light_dot1 = (self.lights[0].pos - hit_data.point_of_contact).dot(&surface_normal);
[INFO] [stdout]    |             ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_light_dot1`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `distance_traveled`
[INFO] [stdout]   --> src/scene.rs:90:32
[INFO] [stdout]    |
[INFO] [stdout] 90 |                 let (hit_data, distance_traveled) = shadow_ray.march_until_hit(&self.objects, &[hit_data.object_index]);
[INFO] [stdout]    |                                ^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_distance_traveled`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `fade_amount`
[INFO] [stdout]   --> src/lighting.rs:63:13
[INFO] [stdout]    |
[INFO] [stdout] 63 |         let fade_amount = distance_travelled/RAY_MAX_TRAVEL_DISTANCE;
[INFO] [stdout]    |             ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_fade_amount`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:23:13
[INFO] [stdout]    |
[INFO] [stdout] 23 |         let mut main_scene = Scene::new(DIMS.0, DIMS.1, 90.0,
[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: associated function is never used: `new_with_color`
[INFO] [stdout]   --> src/ray.rs:28:12
[INFO] [stdout]    |
[INFO] [stdout] 28 |     pub fn new_with_color(origin: Point3<f32>, direction: Vector3<f32>, color: Color) -> Ray {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `black`
[INFO] [stdout]   --> src/lighting.rs:37:12
[INFO] [stdout]    |
[INFO] [stdout] 37 |     pub fn black() -> Color {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `grey_from_float`
[INFO] [stdout]   --> src/lighting.rs:45:12
[INFO] [stdout]    |
[INFO] [stdout] 45 |     pub fn grey_from_float(a: f32) -> Color {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `fade_due_to_render_distance`
[INFO] [stdout]   --> src/lighting.rs:60:12
[INFO] [stdout]    |
[INFO] [stdout] 60 |     pub fn fade_due_to_render_distance(ray_col: &Color, distance_travelled: f32) -> Color {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_black`
[INFO] [stdout]   --> src/lighting.rs:67:12
[INFO] [stdout]    |
[INFO] [stdout] 67 |     pub fn is_black(&self) -> bool {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 21 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 18s
[INFO] running `Command { std: "docker" "inspect" "d30c53df99053531ce40c2c56da0655bf1ffd6ed034f2a904d7a6287e601d6c4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d30c53df99053531ce40c2c56da0655bf1ffd6ed034f2a904d7a6287e601d6c4", kill_on_drop: false }`
[INFO] [stdout] d30c53df99053531ce40c2c56da0655bf1ffd6ed034f2a904d7a6287e601d6c4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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=warn" "-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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 19e09b467175ff7f6aaf1e8ef58c29ee3e1da5e99ba88bfd409756f2eccec8b7
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "19e09b467175ff7f6aaf1e8ef58c29ee3e1da5e99ba88bfd409756f2eccec8b7", kill_on_drop: false }`
[INFO] [stderr]    Compiling raytracer v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `Perspective3`, `Vector2`
[INFO] [stdout]  --> src/ray.rs:1:35
[INFO] [stdout]   |
[INFO] [stdout] 1 | use na::{Point3, Point2, Vector3, Vector2, Perspective3};
[INFO] [stdout]   |                                   ^^^^^^^  ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::ray::Ray`
[INFO] [stdout]  --> src/objects.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use crate::ray::Ray;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Pixel`, `Rgba`
[INFO] [stdout]  --> src/scene.rs:1:41
[INFO] [stdout]   |
[INFO] [stdout] 1 | use image::{DynamicImage, GenericImage, Rgba, Pixel};
[INFO] [stdout]   |                                         ^^^^  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Isometry3`, `Matrix4`, `Point3`, `Vector3`
[INFO] [stdout]  --> src/scene.rs:2:10
[INFO] [stdout]   |
[INFO] [stdout] 2 | use na::{Point3, Perspective3, Vector3, Matrix4, Isometry3};
[INFO] [stdout]   |          ^^^^^^                ^^^^^^^  ^^^^^^^  ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Sphere`
[INFO] [stdout]  --> src/scene.rs:6:22
[INFO] [stdout]   |
[INFO] [stdout] 6 | use crate::objects::{Sphere, Object};
[INFO] [stdout]   |                      ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `RAY_HIT_THRESHOLD`
[INFO] [stdout]  --> src/scene.rs:7:76
[INFO] [stdout]   |
[INFO] [stdout] 7 | use crate::ray::{Ray, HitData, RAY_MAX_TRAVEL_DISTANCE, RAY_REFLECT_LIMIT, RAY_HIT_THRESHOLD};
[INFO] [stdout]   |                                                                            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Color`
[INFO] [stdout]  --> src/scene.rs:8:30
[INFO] [stdout]   |
[INFO] [stdout] 8 | use crate::lighting::{Light, Color};
[INFO] [stdout]   |                              ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Vector3`
[INFO] [stdout]  --> src/lighting.rs:2:18
[INFO] [stdout]   |
[INFO] [stdout] 2 | use na::{Point3, Vector3};
[INFO] [stdout]   |                  ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Matrix4`, `Vector3`
[INFO] [stdout]  --> src/main.rs:8:18
[INFO] [stdout]   |
[INFO] [stdout] 8 | use na::{Point3, Vector3, Matrix4};
[INFO] [stdout]   |                  ^^^^^^^  ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `color`
[INFO] [stdout]   --> src/ray.rs:28:73
[INFO] [stdout]    |
[INFO] [stdout] 28 |     pub fn new_with_color(origin: Point3<f32>, direction: Vector3<f32>, color: Color) -> Ray {
[INFO] [stdout]    |                                                                         ^^^^^ help: if this is intentional, prefix it with an underscore: `_color`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `point`
[INFO] [stdout]   --> src/objects.rs:66:26
[INFO] [stdout]    |
[INFO] [stdout] 66 |     fn get_normal(&self, point: &Point3<f32>) -> Vector3<f32> {
[INFO] [stdout]    |                          ^^^^^ help: if this is intentional, prefix it with an underscore: `_point`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/scene.rs:43:21
[INFO] [stdout]    |
[INFO] [stdout] 43 |                 for i in 0..RAY_REFLECT_LIMIT+1 {
[INFO] [stdout]    |                     ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `light_dot1`
[INFO] [stdout]   --> src/scene.rs:78:13
[INFO] [stdout]    |
[INFO] [stdout] 78 |         let light_dot1 = (self.lights[0].pos - hit_data.point_of_contact).dot(&surface_normal);
[INFO] [stdout]    |             ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_light_dot1`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `distance_traveled`
[INFO] [stdout]   --> src/scene.rs:90:32
[INFO] [stdout]    |
[INFO] [stdout] 90 |                 let (hit_data, distance_traveled) = shadow_ray.march_until_hit(&self.objects, &[hit_data.object_index]);
[INFO] [stdout]    |                                ^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_distance_traveled`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `fade_amount`
[INFO] [stdout]   --> src/lighting.rs:63:13
[INFO] [stdout]    |
[INFO] [stdout] 63 |         let fade_amount = distance_travelled/RAY_MAX_TRAVEL_DISTANCE;
[INFO] [stdout]    |             ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_fade_amount`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:23:13
[INFO] [stdout]    |
[INFO] [stdout] 23 |         let mut main_scene = Scene::new(DIMS.0, DIMS.1, 90.0,
[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: associated function is never used: `new_with_color`
[INFO] [stdout]   --> src/ray.rs:28:12
[INFO] [stdout]    |
[INFO] [stdout] 28 |     pub fn new_with_color(origin: Point3<f32>, direction: Vector3<f32>, color: Color) -> Ray {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `black`
[INFO] [stdout]   --> src/lighting.rs:37:12
[INFO] [stdout]    |
[INFO] [stdout] 37 |     pub fn black() -> Color {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `grey_from_float`
[INFO] [stdout]   --> src/lighting.rs:45:12
[INFO] [stdout]    |
[INFO] [stdout] 45 |     pub fn grey_from_float(a: f32) -> Color {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `fade_due_to_render_distance`
[INFO] [stdout]   --> src/lighting.rs:60:12
[INFO] [stdout]    |
[INFO] [stdout] 60 |     pub fn fade_due_to_render_distance(ray_col: &Color, distance_travelled: f32) -> Color {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_black`
[INFO] [stdout]   --> src/lighting.rs:67:12
[INFO] [stdout]    |
[INFO] [stdout] 67 |     pub fn is_black(&self) -> bool {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 21 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.55s
[INFO] running `Command { std: "docker" "inspect" "19e09b467175ff7f6aaf1e8ef58c29ee3e1da5e99ba88bfd409756f2eccec8b7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "19e09b467175ff7f6aaf1e8ef58c29ee3e1da5e99ba88bfd409756f2eccec8b7", kill_on_drop: false }`
[INFO] [stdout] 19e09b467175ff7f6aaf1e8ef58c29ee3e1da5e99ba88bfd409756f2eccec8b7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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=warn" "-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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 48800493ea576e1afc21c210d90be33bb04da5bead1128a67ac42d9fe9160955
[INFO] running `Command { std: "docker" "start" "-a" "48800493ea576e1afc21c210d90be33bb04da5bead1128a67ac42d9fe9160955", kill_on_drop: false }`
[INFO] [stderr] warning: unused imports: `Perspective3`, `Vector2`
[INFO] [stderr]  --> src/ray.rs:1:35
[INFO] [stderr]   |
[INFO] [stderr] 1 | use na::{Point3, Point2, Vector3, Vector2, Perspective3};
[INFO] [stderr]   |                                   ^^^^^^^  ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::ray::Ray`
[INFO] [stderr]  --> src/objects.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use crate::ray::Ray;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Pixel`, `Rgba`
[INFO] [stderr]  --> src/scene.rs:1:41
[INFO] [stderr]   |
[INFO] [stderr] 1 | use image::{DynamicImage, GenericImage, Rgba, Pixel};
[INFO] [stderr]   |                                         ^^^^  ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Isometry3`, `Matrix4`, `Point3`, `Vector3`
[INFO] [stderr]  --> src/scene.rs:2:10
[INFO] [stderr]   |
[INFO] [stderr] 2 | use na::{Point3, Perspective3, Vector3, Matrix4, Isometry3};
[INFO] [stderr]   |          ^^^^^^                ^^^^^^^  ^^^^^^^  ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Sphere`
[INFO] [stderr]  --> src/scene.rs:6:22
[INFO] [stderr]   |
[INFO] [stderr] 6 | use crate::objects::{Sphere, Object};
[INFO] [stderr]   |                      ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `RAY_HIT_THRESHOLD`
[INFO] [stderr]  --> src/scene.rs:7:76
[INFO] [stderr]   |
[INFO] [stderr] 7 | use crate::ray::{Ray, HitData, RAY_MAX_TRAVEL_DISTANCE, RAY_REFLECT_LIMIT, RAY_HIT_THRESHOLD};
[INFO] [stderr]   |                                                                            ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Color`
[INFO] [stderr]  --> src/scene.rs:8:30
[INFO] [stderr]   |
[INFO] [stderr] 8 | use crate::lighting::{Light, Color};
[INFO] [stderr]   |                              ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Vector3`
[INFO] [stderr]  --> src/lighting.rs:2:18
[INFO] [stderr]   |
[INFO] [stderr] 2 | use na::{Point3, Vector3};
[INFO] [stderr]   |                  ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Matrix4`, `Vector3`
[INFO] [stderr]  --> src/main.rs:8:18
[INFO] [stderr]   |
[INFO] [stderr] 8 | use na::{Point3, Vector3, Matrix4};
[INFO] [stderr]   |                  ^^^^^^^  ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `color`
[INFO] [stderr]   --> src/ray.rs:28:73
[INFO] [stderr]    |
[INFO] [stderr] 28 |     pub fn new_with_color(origin: Point3<f32>, direction: Vector3<f32>, color: Color) -> Ray {
[INFO] [stderr]    |                                                                         ^^^^^ help: if this is intentional, prefix it with an underscore: `_color`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `point`
[INFO] [stderr]   --> src/objects.rs:66:26
[INFO] [stderr]    |
[INFO] [stderr] 66 |     fn get_normal(&self, point: &Point3<f32>) -> Vector3<f32> {
[INFO] [stderr]    |                          ^^^^^ help: if this is intentional, prefix it with an underscore: `_point`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]   --> src/scene.rs:43:21
[INFO] [stderr]    |
[INFO] [stderr] 43 |                 for i in 0..RAY_REFLECT_LIMIT+1 {
[INFO] [stderr]    |                     ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `light_dot1`
[INFO] [stderr]   --> src/scene.rs:78:13
[INFO] [stderr]    |
[INFO] [stderr] 78 |         let light_dot1 = (self.lights[0].pos - hit_data.point_of_contact).dot(&surface_normal);
[INFO] [stderr]    |             ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_light_dot1`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `distance_traveled`
[INFO] [stderr]   --> src/scene.rs:90:32
[INFO] [stderr]    |
[INFO] [stderr] 90 |                 let (hit_data, distance_traveled) = shadow_ray.march_until_hit(&self.objects, &[hit_data.object_index]);
[INFO] [stderr]    |                                ^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_distance_traveled`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `fade_amount`
[INFO] [stderr]   --> src/lighting.rs:63:13
[INFO] [stderr]    |
[INFO] [stderr] 63 |         let fade_amount = distance_travelled/RAY_MAX_TRAVEL_DISTANCE;
[INFO] [stderr]    |             ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_fade_amount`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:23:13
[INFO] [stderr]    |
[INFO] [stderr] 23 |         let mut main_scene = Scene::new(DIMS.0, DIMS.1, 90.0,
[INFO] [stderr]    |             ----^^^^^^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new_with_color`
[INFO] [stderr]   --> src/ray.rs:28:12
[INFO] [stderr]    |
[INFO] [stderr] 28 |     pub fn new_with_color(origin: Point3<f32>, direction: Vector3<f32>, color: Color) -> Ray {
[INFO] [stderr]    |            ^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `black`
[INFO] [stderr]   --> src/lighting.rs:37:12
[INFO] [stderr]    |
[INFO] [stderr] 37 |     pub fn black() -> Color {
[INFO] [stderr]    |            ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `grey_from_float`
[INFO] [stderr]   --> src/lighting.rs:45:12
[INFO] [stderr]    |
[INFO] [stderr] 45 |     pub fn grey_from_float(a: f32) -> Color {
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `fade_due_to_render_distance`
[INFO] [stderr]   --> src/lighting.rs:60:12
[INFO] [stderr]    |
[INFO] [stderr] 60 |     pub fn fade_due_to_render_distance(ray_col: &Color, distance_travelled: f32) -> Color {
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `is_black`
[INFO] [stderr]   --> src/lighting.rs:67:12
[INFO] [stderr]    |
[INFO] [stderr] 67 |     pub fn is_black(&self) -> bool {
[INFO] [stderr]    |            ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 21 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.13s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/raytracer-6e81a2898d5279f3
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "48800493ea576e1afc21c210d90be33bb04da5bead1128a67ac42d9fe9160955", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "48800493ea576e1afc21c210d90be33bb04da5bead1128a67ac42d9fe9160955", kill_on_drop: false }`
[INFO] [stdout] 48800493ea576e1afc21c210d90be33bb04da5bead1128a67ac42d9fe9160955
