[INFO] cloning repository https://github.com/lprib/raymarcher
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/lprib/raymarcher" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flprib%2Fraymarcher", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flprib%2Fraymarcher'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e781fc144dcaf095c20533638cdaefec37dac6f2
[INFO] testing lprib/raymarcher against 1.45.2 for beta-1.46-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flprib%2Fraymarcher" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/lprib/raymarcher on toolchain 1.45.2
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.45.2" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/lprib/raymarcher
[INFO] finished tweaking git repo https://github.com/lprib/raymarcher
[INFO] tweaked toml for git repo https://github.com/lprib/raymarcher written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/lprib/raymarcher already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.45.2" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1.45.2" "metadata" "--no-deps" "--format-version=1", 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] b978a13c788e83574930bb161534d0b98405c93e5a6c0cdfcabc8927c30ff9e9
[INFO] running `Command { std: "docker" "start" "-a" "b978a13c788e83574930bb161534d0b98405c93e5a6c0cdfcabc8927c30ff9e9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b978a13c788e83574930bb161534d0b98405c93e5a6c0cdfcabc8927c30ff9e9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b978a13c788e83574930bb161534d0b98405c93e5a6c0cdfcabc8927c30ff9e9", kill_on_drop: false }`
[INFO] [stdout] b978a13c788e83574930bb161534d0b98405c93e5a6c0cdfcabc8927c30ff9e9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1.45.2" "build" "--frozen" "--message-format=json", 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] 4d6ba15b097b7cbce45a2bbee98ead010de06c6c26f7a031fbf0dc856d1f3187
[INFO] running `Command { std: "docker" "start" "-a" "4d6ba15b097b7cbce45a2bbee98ead010de06c6c26f7a031fbf0dc856d1f3187", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.71
[INFO] [stderr]    Compiling libloading v0.6.2
[INFO] [stderr]    Compiling nix v0.17.0
[INFO] [stderr]    Compiling once_cell v1.4.0
[INFO] [stderr]    Compiling smallvec v1.4.0
[INFO] [stderr]    Compiling scoped-tls v1.0.0
[INFO] [stderr]    Compiling cgmath v0.17.0
[INFO] [stderr]    Compiling remove_dir_all v0.5.2
[INFO] [stderr]    Compiling xkbcommon-sys v0.7.4
[INFO] [stderr]    Compiling x11-dl v2.18.5
[INFO] [stderr]    Compiling minifb v0.16.0
[INFO] [stderr]    Compiling deflate v0.8.4
[INFO] [stderr]    Compiling approx v0.3.2
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]    Compiling crossbeam-queue v0.2.2
[INFO] [stderr]    Compiling wayland-scanner v0.25.0
[INFO] [stderr]    Compiling dlib v0.4.2
[INFO] [stderr]    Compiling png v0.16.4
[INFO] [stderr]    Compiling wayland-sys v0.25.0
[INFO] [stderr]    Compiling image v0.23.4
[INFO] [stderr]    Compiling wayland-client v0.25.0
[INFO] [stderr]    Compiling wayland-protocols v0.25.0
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling time v0.1.43
[INFO] [stderr]    Compiling raw-window-handle v0.3.3
[INFO] [stderr]    Compiling clap v2.33.1
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rayon-core v1.7.0
[INFO] [stderr]    Compiling xkb v0.2.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rayon v1.3.0
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling tempfile v3.1.0
[INFO] [stderr]    Compiling wayland-commons v0.25.0
[INFO] [stderr]    Compiling wayland-cursor v0.25.0
[INFO] [stderr]    Compiling marcher v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `Mandelbulb`
[INFO] [stdout]  --> src/main.rs:6:41
[INFO] [stdout]   |
[INFO] [stdout] 6 | use crate::render_3d::fractals::{Julia, Mandelbulb};
[INFO] [stdout]   |                                         ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::render_3d::scene_object::Sphere`
[INFO] [stdout]  --> src/main.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use crate::render_3d::scene_object::Sphere;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ImageRenderConfiguration`
[INFO] [stdout]  --> src/render_3d/mod.rs:4:48
[INFO] [stdout]   |
[INFO] [stdout] 4 | use raymarcher::{RayMarcher, RayMarcherConfig, ImageRenderConfiguration};
[INFO] [stdout]   |                                                ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Sphere`
[INFO] [stdout]  --> src/render_3d/raymarcher.rs:3:27
[INFO] [stdout]   |
[INFO] [stdout] 3 | use super::scene_object::{Sphere, SceneObject};
[INFO] [stdout]   |                           ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::fractals::Julia`
[INFO] [stdout]  --> src/render_3d/raymarcher.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use super::fractals::Julia;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `cgmath::Quaternion`
[INFO] [stdout]  --> src/render_3d/raymarcher.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use cgmath::Quaternion;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::process::exit`
[INFO] [stdout]  --> src/render_3d/raymarcher.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use std::process::exit;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]    --> src/main.rs:168:45
[INFO] [stdout]     |
[INFO] [stdout] 168 |     let int = input.parse::<u32>().map_err(|e| "must be a valid integer")?;
[INFO] [stdout]     |                                             ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `len`
[INFO] [stdout]   --> src/render_3d/raymarcher.rs:58:21
[INFO] [stdout]    |
[INFO] [stdout] 58 |                 let len = (len / 2.0).powi(2);
[INFO] [stdout]    |                     ^^^ help: if this is intentional, prefix it with an underscore: `_len`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `iterations` is assigned to, but never used
[INFO] [stdout]   --> src/render_3d/ray.rs:16:9
[INFO] [stdout]    |
[INFO] [stdout] 16 |     let mut iterations = 0u32;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: consider using `_iterations` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `t`
[INFO] [stdout]   --> src/render_3d/fractals.rs:35:25
[INFO] [stdout]    |
[INFO] [stdout] 35 |     fn get_color(&self, t: f64) -> Vec3 {
[INFO] [stdout]    |                         ^ help: if this is intentional, prefix it with an underscore: `_t`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/render_3d/fractals.rs:84:13
[INFO] [stdout]    |
[INFO] [stdout] 84 |         for i in 0..MAX_ITERS {
[INFO] [stdout]    |             ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `t`
[INFO] [stdout]   --> src/render_3d/fractals.rs:78:40
[INFO] [stdout]    |
[INFO] [stdout] 78 |     fn distance_to(&self, point: Vec3, t: f64) -> f64 {
[INFO] [stdout]    |                                        ^ help: if this is intentional, prefix it with an underscore: `_t`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `t`
[INFO] [stdout]    --> src/render_3d/fractals.rs:106:25
[INFO] [stdout]     |
[INFO] [stdout] 106 |     fn get_color(&self, t: f64) -> Vec3 {
[INFO] [stdout]     |                         ^ help: if this is intentional, prefix it with an underscore: `_t`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `render_to_image`
[INFO] [stdout]   --> src/render_3d/raymarcher.rs:96:8
[INFO] [stdout]    |
[INFO] [stdout] 96 |     fn render_to_image(&self, file: &Path, (width, height): (usize, usize), t: f64) {
[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: `render_images`
[INFO] [stdout]    --> src/render_3d/raymarcher.rs:122:12
[INFO] [stdout]     |
[INFO] [stdout] 122 |     pub fn render_images<F: Fn(u32) -> String>(&self, config: ImageRenderConfiguration<F>) {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `ImageRenderConfiguration`
[INFO] [stdout]    --> src/render_3d/raymarcher.rs:167:12
[INFO] [stdout]     |
[INFO] [stdout] 167 | pub struct ImageRenderConfiguration<F: Fn(u32) -> String> {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `MAX_STEPS`
[INFO] [stdout]  --> src/render_3d/ray.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | const MAX_STEPS: u32 = 200;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 18 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 02s
[INFO] running `Command { std: "docker" "inspect" "4d6ba15b097b7cbce45a2bbee98ead010de06c6c26f7a031fbf0dc856d1f3187", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4d6ba15b097b7cbce45a2bbee98ead010de06c6c26f7a031fbf0dc856d1f3187", kill_on_drop: false }`
[INFO] [stdout] 4d6ba15b097b7cbce45a2bbee98ead010de06c6c26f7a031fbf0dc856d1f3187
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1.45.2" "test" "--frozen" "--no-run" "--message-format=json", 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] 9551f1d32a02288674c5fc803c9f457a23ce04253f83043b26148b54944ffb46
[INFO] running `Command { std: "docker" "start" "-a" "9551f1d32a02288674c5fc803c9f457a23ce04253f83043b26148b54944ffb46", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling marcher v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `Mandelbulb`
[INFO] [stdout]  --> src/main.rs:6:41
[INFO] [stdout]   |
[INFO] [stdout] 6 | use crate::render_3d::fractals::{Julia, Mandelbulb};
[INFO] [stdout]   |                                         ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::render_3d::scene_object::Sphere`
[INFO] [stdout]  --> src/main.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use crate::render_3d::scene_object::Sphere;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ImageRenderConfiguration`
[INFO] [stdout]  --> src/render_3d/mod.rs:4:48
[INFO] [stdout]   |
[INFO] [stdout] 4 | use raymarcher::{RayMarcher, RayMarcherConfig, ImageRenderConfiguration};
[INFO] [stdout]   |                                                ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Sphere`
[INFO] [stdout]  --> src/render_3d/raymarcher.rs:3:27
[INFO] [stdout]   |
[INFO] [stdout] 3 | use super::scene_object::{Sphere, SceneObject};
[INFO] [stdout]   |                           ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::fractals::Julia`
[INFO] [stdout]  --> src/render_3d/raymarcher.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use super::fractals::Julia;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `cgmath::Quaternion`
[INFO] [stdout]  --> src/render_3d/raymarcher.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use cgmath::Quaternion;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::process::exit`
[INFO] [stdout]  --> src/render_3d/raymarcher.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use std::process::exit;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]    --> src/main.rs:168:45
[INFO] [stdout]     |
[INFO] [stdout] 168 |     let int = input.parse::<u32>().map_err(|e| "must be a valid integer")?;
[INFO] [stdout]     |                                             ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `len`
[INFO] [stdout]   --> src/render_3d/raymarcher.rs:58:21
[INFO] [stdout]    |
[INFO] [stdout] 58 |                 let len = (len / 2.0).powi(2);
[INFO] [stdout]    |                     ^^^ help: if this is intentional, prefix it with an underscore: `_len`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `iterations` is assigned to, but never used
[INFO] [stdout]   --> src/render_3d/ray.rs:16:9
[INFO] [stdout]    |
[INFO] [stdout] 16 |     let mut iterations = 0u32;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: consider using `_iterations` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `t`
[INFO] [stdout]   --> src/render_3d/fractals.rs:35:25
[INFO] [stdout]    |
[INFO] [stdout] 35 |     fn get_color(&self, t: f64) -> Vec3 {
[INFO] [stdout]    |                         ^ help: if this is intentional, prefix it with an underscore: `_t`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/render_3d/fractals.rs:84:13
[INFO] [stdout]    |
[INFO] [stdout] 84 |         for i in 0..MAX_ITERS {
[INFO] [stdout]    |             ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `t`
[INFO] [stdout]   --> src/render_3d/fractals.rs:78:40
[INFO] [stdout]    |
[INFO] [stdout] 78 |     fn distance_to(&self, point: Vec3, t: f64) -> f64 {
[INFO] [stdout]    |                                        ^ help: if this is intentional, prefix it with an underscore: `_t`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `t`
[INFO] [stdout]    --> src/render_3d/fractals.rs:106:25
[INFO] [stdout]     |
[INFO] [stdout] 106 |     fn get_color(&self, t: f64) -> Vec3 {
[INFO] [stdout]     |                         ^ help: if this is intentional, prefix it with an underscore: `_t`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `render_to_image`
[INFO] [stdout]   --> src/render_3d/raymarcher.rs:96:8
[INFO] [stdout]    |
[INFO] [stdout] 96 |     fn render_to_image(&self, file: &Path, (width, height): (usize, usize), t: f64) {
[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: `render_images`
[INFO] [stdout]    --> src/render_3d/raymarcher.rs:122:12
[INFO] [stdout]     |
[INFO] [stdout] 122 |     pub fn render_images<F: Fn(u32) -> String>(&self, config: ImageRenderConfiguration<F>) {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `ImageRenderConfiguration`
[INFO] [stdout]    --> src/render_3d/raymarcher.rs:167:12
[INFO] [stdout]     |
[INFO] [stdout] 167 | pub struct ImageRenderConfiguration<F: Fn(u32) -> String> {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `MAX_STEPS`
[INFO] [stdout]  --> src/render_3d/ray.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | const MAX_STEPS: u32 = 200;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 18 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.33s
[INFO] running `Command { std: "docker" "inspect" "9551f1d32a02288674c5fc803c9f457a23ce04253f83043b26148b54944ffb46", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9551f1d32a02288674c5fc803c9f457a23ce04253f83043b26148b54944ffb46", kill_on_drop: false }`
[INFO] [stdout] 9551f1d32a02288674c5fc803c9f457a23ce04253f83043b26148b54944ffb46
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1.45.2" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 8df0fd8769cd98fb99a2de136963507a33c4d9723482c04dbf4de3c501ae6d70
[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" "8df0fd8769cd98fb99a2de136963507a33c4d9723482c04dbf4de3c501ae6d70", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `Mandelbulb`
[INFO] [stderr]  --> src/main.rs:6:41
[INFO] [stderr]   |
[INFO] [stderr] 6 | use crate::render_3d::fractals::{Julia, Mandelbulb};
[INFO] [stderr]   |                                         ^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::render_3d::scene_object::Sphere`
[INFO] [stderr]  --> src/main.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use crate::render_3d::scene_object::Sphere;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `ImageRenderConfiguration`
[INFO] [stderr]  --> src/render_3d/mod.rs:4:48
[INFO] [stderr]   |
[INFO] [stderr] 4 | use raymarcher::{RayMarcher, RayMarcherConfig, ImageRenderConfiguration};
[INFO] [stderr]   |                                                ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Sphere`
[INFO] [stderr]  --> src/render_3d/raymarcher.rs:3:27
[INFO] [stderr]   |
[INFO] [stderr] 3 | use super::scene_object::{Sphere, SceneObject};
[INFO] [stderr]   |                           ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `super::fractals::Julia`
[INFO] [stderr]  --> src/render_3d/raymarcher.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use super::fractals::Julia;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `cgmath::Quaternion`
[INFO] [stderr]  --> src/render_3d/raymarcher.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use cgmath::Quaternion;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::process::exit`
[INFO] [stderr]  --> src/render_3d/raymarcher.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 | use std::process::exit;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `e`
[INFO] [stderr]    --> src/main.rs:168:45
[INFO] [stderr]     |
[INFO] [stderr] 168 |     let int = input.parse::<u32>().map_err(|e| "must be a valid integer")?;
[INFO] [stderr]     |                                             ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `len`
[INFO] [stderr]   --> src/render_3d/raymarcher.rs:58:21
[INFO] [stderr]    |
[INFO] [stderr] 58 |                 let len = (len / 2.0).powi(2);
[INFO] [stderr]    |                     ^^^ help: if this is intentional, prefix it with an underscore: `_len`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `iterations` is assigned to, but never used
[INFO] [stderr]   --> src/render_3d/ray.rs:16:9
[INFO] [stderr]    |
[INFO] [stderr] 16 |     let mut iterations = 0u32;
[INFO] [stderr]    |         ^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: consider using `_iterations` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `t`
[INFO] [stderr]   --> src/render_3d/fractals.rs:35:25
[INFO] [stderr]    |
[INFO] [stderr] 35 |     fn get_color(&self, t: f64) -> Vec3 {
[INFO] [stderr]    |                         ^ help: if this is intentional, prefix it with an underscore: `_t`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]   --> src/render_3d/fractals.rs:84:13
[INFO] [stderr]    |
[INFO] [stderr] 84 |         for i in 0..MAX_ITERS {
[INFO] [stderr]    |             ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `t`
[INFO] [stderr]   --> src/render_3d/fractals.rs:78:40
[INFO] [stderr]    |
[INFO] [stderr] 78 |     fn distance_to(&self, point: Vec3, t: f64) -> f64 {
[INFO] [stderr]    |                                        ^ help: if this is intentional, prefix it with an underscore: `_t`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `t`
[INFO] [stderr]    --> src/render_3d/fractals.rs:106:25
[INFO] [stderr]     |
[INFO] [stderr] 106 |     fn get_color(&self, t: f64) -> Vec3 {
[INFO] [stderr]     |                         ^ help: if this is intentional, prefix it with an underscore: `_t`
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `render_to_image`
[INFO] [stderr]   --> src/render_3d/raymarcher.rs:96:8
[INFO] [stderr]    |
[INFO] [stderr] 96 |     fn render_to_image(&self, file: &Path, (width, height): (usize, usize), t: f64) {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `render_images`
[INFO] [stderr]    --> src/render_3d/raymarcher.rs:122:12
[INFO] [stderr]     |
[INFO] [stderr] 122 |     pub fn render_images<F: Fn(u32) -> String>(&self, config: ImageRenderConfiguration<F>) {
[INFO] [stderr]     |            ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `ImageRenderConfiguration`
[INFO] [stderr]    --> src/render_3d/raymarcher.rs:167:12
[INFO] [stderr]     |
[INFO] [stderr] 167 | pub struct ImageRenderConfiguration<F: Fn(u32) -> String> {
[INFO] [stderr]     |            ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant is never used: `MAX_STEPS`
[INFO] [stderr]  --> src/render_3d/ray.rs:4:1
[INFO] [stderr]   |
[INFO] [stderr] 4 | const MAX_STEPS: u32 = 200;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 18 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.25s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/marcher-4d33b6f8ecc8426f
[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" "8df0fd8769cd98fb99a2de136963507a33c4d9723482c04dbf4de3c501ae6d70", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8df0fd8769cd98fb99a2de136963507a33c4d9723482c04dbf4de3c501ae6d70", kill_on_drop: false }`
[INFO] [stdout] 8df0fd8769cd98fb99a2de136963507a33c4d9723482c04dbf4de3c501ae6d70