[INFO] cloning repository https://github.com/Kethku/RustyRayTracer
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Kethku/RustyRayTracer" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKethku%2FRustyRayTracer"`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKethku%2FRustyRayTracer'...
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 25633642276e2a25325f760faa1f58d1fa1bb375
[INFO] checking Kethku/RustyRayTracer against master#45d050cde277b22a755847338f2acc2c7b834141 for pr-71393
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKethku%2FRustyRayTracer" "/workspace/builds/worker-3/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Kethku/RustyRayTracer on toolchain 45d050cde277b22a755847338f2acc2c7b834141
[INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/Kethku/RustyRayTracer
[INFO] finished tweaking git repo https://github.com/Kethku/RustyRayTracer
[INFO] tweaked toml for git repo https://github.com/Kethku/RustyRayTracer written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/Kethku/RustyRayTracer already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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=forbid" "-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" "/opt/rustwide/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 86bfc0dbea459f09a933f163b36fa042f9f4ca871f947795d177d59a313cde9e
[INFO] running `"docker" "start" "-a" "86bfc0dbea459f09a933f163b36fa042f9f4ca871f947795d177d59a313cde9e"`
[INFO] [stderr]    Compiling pkg-config v0.3.9
[INFO] [stderr]     Checking libc v0.2.34
[INFO] [stderr]     Checking lazy_static v0.2.11
[INFO] [stderr]    Compiling minifb v0.10.4
[INFO] [stderr]    Compiling x11-dl v2.14.0
[INFO] [stderr]     Checking time v0.1.39
[INFO] [stderr]     Checking rand v0.3.18
[INFO] [stderr]     Checking rusty_ray_tracer v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `Barrier`
[INFO] [stderr]  --> src/main.rs:6:29
[INFO] [stderr]   |
[INFO] [stderr] 6 | use std::sync::{Arc, Mutex, Barrier};
[INFO] [stderr]   |                             ^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::f64::*`
[INFO] [stderr]  --> src/main.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 | use std::f64::*;
[INFO] [stderr]   |     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `characteristics::*`
[INFO] [stderr]  --> src/scene.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use characteristics::*;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `distance_field::*`
[INFO] [stderr]  --> src/atmosphere.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use distance_field::*;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `scene::*`
[INFO] [stderr]  --> src/atmosphere.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use scene::*;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `atmosphere::*`
[INFO] [stderr]  --> src/scene_renderer.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use atmosphere::*;
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Barrier`
[INFO] [stderr]  --> src/main.rs:6:29
[INFO] [stderr]   |
[INFO] [stderr] 6 | use std::sync::{Arc, Mutex, Barrier};
[INFO] [stderr]   |                             ^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::f64::*`
[INFO] [stderr]  --> src/main.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 | use std::f64::*;
[INFO] [stderr]   |     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `characteristics::*`
[INFO] [stderr]  --> src/scene.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use characteristics::*;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `distance_field::*`
[INFO] [stderr]  --> src/atmosphere.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use distance_field::*;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `scene::*`
[INFO] [stderr]  --> src/atmosphere.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use scene::*;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `atmosphere::*`
[INFO] [stderr]  --> src/scene_renderer.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use atmosphere::*;
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `pos`
[INFO] [stderr]   --> src/distance_field.rs:48:31
[INFO] [stderr]    |
[INFO] [stderr] 48 |     fn characteristics(&self, pos: Vector) -> Characteristics {
[INFO] [stderr]    |                               ^^^ help: if this is intentional, prefix it with an underscore: `_pos`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `pos`
[INFO] [stderr]   --> src/distance_field.rs:85:22
[INFO] [stderr]    |
[INFO] [stderr] 85 |     fn normal(&self, pos: Vector) -> Vector {
[INFO] [stderr]    |                      ^^^ help: if this is intentional, prefix it with an underscore: `_pos`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `pos`
[INFO] [stderr]   --> src/distance_field.rs:89:31
[INFO] [stderr]    |
[INFO] [stderr] 89 |     fn characteristics(&self, pos: Vector) -> Characteristics {
[INFO] [stderr]    |                               ^^^ help: if this is intentional, prefix it with an underscore: `_pos`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]   --> src/scene_renderer.rs:68:21
[INFO] [stderr]    |
[INFO] [stderr] 68 |                 for i in 0..iterations {
[INFO] [stderr]    |                     ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `intersect`
[INFO] [stderr]   --> src/scene_renderer.rs:82:30
[INFO] [stderr]    |
[INFO] [stderr] 82 |                         Some(intersect) => continue,
[INFO] [stderr]    |                              ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_intersect`
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/distance_field.rs:21:5
[INFO] [stderr]    |
[INFO] [stderr] 21 |     pub fn new(pos: Vector, r: f64, chars: Characteristics) -> Scene<Sphere> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `pos`
[INFO] [stderr]   --> src/distance_field.rs:48:31
[INFO] [stderr]    |
[INFO] [stderr] 48 |     fn characteristics(&self, pos: Vector) -> Characteristics {
[INFO] [stderr]    |                               ^^^ help: if this is intentional, prefix it with an underscore: `_pos`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `pos`
[INFO] [stderr]   --> src/distance_field.rs:85:22
[INFO] [stderr]    |
[INFO] [stderr] 85 |     fn normal(&self, pos: Vector) -> Vector {
[INFO] [stderr]    |                      ^^^ help: if this is intentional, prefix it with an underscore: `_pos`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `pos`
[INFO] [stderr]   --> src/distance_field.rs:89:31
[INFO] [stderr]    |
[INFO] [stderr] 89 |     fn characteristics(&self, pos: Vector) -> Characteristics {
[INFO] [stderr]    |                               ^^^ help: if this is intentional, prefix it with an underscore: `_pos`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]   --> src/scene_renderer.rs:68:21
[INFO] [stderr]    |
[INFO] [stderr] 68 |                 for i in 0..iterations {
[INFO] [stderr]    |                     ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `intersect`
[INFO] [stderr]   --> src/scene_renderer.rs:82:30
[INFO] [stderr]    |
[INFO] [stderr] 82 |                         Some(intersect) => continue,
[INFO] [stderr]    |                              ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_intersect`
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/distance_field.rs:60:5
[INFO] [stderr]    |
[INFO] [stderr] 60 |     pub fn new(normal: Vector, point: Vector, chars: Characteristics) -> Scene<Plane> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `MINIMUM_THRESHOLD`
[INFO] [stderr]   --> src/scene.rs:12:1
[INFO] [stderr]    |
[INFO] [stderr] 12 | const MINIMUM_THRESHOLD: f64 = 0.001;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `trace`
[INFO] [stderr]   --> src/scene.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 14 |     pub fn trace(&self, position: Vector, direction: Vector, sun_dir: Vector) -> Vector {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `default`
[INFO] [stderr]   --> src/characteristics.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 |     pub fn default() -> Characteristics {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `mirror`
[INFO] [stderr]   --> src/characteristics.rs:21:5
[INFO] [stderr]    |
[INFO] [stderr] 21 |     pub fn mirror(color: Vector) -> Characteristics {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `matte`
[INFO] [stderr]   --> src/characteristics.rs:30:5
[INFO] [stderr]    |
[INFO] [stderr] 30 |     pub fn matte(color: Vector) -> Characteristics {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `UP`
[INFO] [stderr]   --> src/scene_renderer.rs:10:1
[INFO] [stderr]    |
[INFO] [stderr] 10 | / const UP: Vector = Vector {
[INFO] [stderr] 11 | |     x: 0.0,
[INFO] [stderr] 12 | |     y: 1.0,
[INFO] [stderr] 13 | |     z: 0.0
[INFO] [stderr] 14 | | };
[INFO] [stderr]    | |__^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `scene_renderer`
[INFO] [stderr]   --> src/scene_renderer.rs:16:8
[INFO] [stderr]    |
[INFO] [stderr] 16 | pub fn scene_renderer(colors_mutex: Arc<Mutex<Vec<Vector>>>, width: usize, height: usize, threads: usize) {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: the feature `iterator_step_by` has been stable since 1.28.0 and no longer requires an attribute to enable
[INFO] [stderr]  --> src/main.rs:1:12
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(iterator_step_by)]
[INFO] [stderr]   |            ^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(stable_features)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/distance_field.rs:21:5
[INFO] [stderr]    |
[INFO] [stderr] 21 |     pub fn new(pos: Vector, r: f64, chars: Characteristics) -> Scene<Sphere> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/distance_field.rs:60:5
[INFO] [stderr]    |
[INFO] [stderr] 60 |     pub fn new(normal: Vector, point: Vector, chars: Characteristics) -> Scene<Plane> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `MINIMUM_THRESHOLD`
[INFO] [stderr]   --> src/scene.rs:12:1
[INFO] [stderr]    |
[INFO] [stderr] 12 | const MINIMUM_THRESHOLD: f64 = 0.001;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `trace`
[INFO] [stderr]   --> src/scene.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 14 |     pub fn trace(&self, position: Vector, direction: Vector, sun_dir: Vector) -> Vector {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `default`
[INFO] [stderr]   --> src/characteristics.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 |     pub fn default() -> Characteristics {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `mirror`
[INFO] [stderr]   --> src/characteristics.rs:21:5
[INFO] [stderr]    |
[INFO] [stderr] 21 |     pub fn mirror(color: Vector) -> Characteristics {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `matte`
[INFO] [stderr]   --> src/characteristics.rs:30:5
[INFO] [stderr]    |
[INFO] [stderr] 30 |     pub fn matte(color: Vector) -> Characteristics {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `UP`
[INFO] [stderr]   --> src/scene_renderer.rs:10:1
[INFO] [stderr]    |
[INFO] [stderr] 10 | / const UP: Vector = Vector {
[INFO] [stderr] 11 | |     x: 0.0,
[INFO] [stderr] 12 | |     y: 1.0,
[INFO] [stderr] 13 | |     z: 0.0
[INFO] [stderr] 14 | | };
[INFO] [stderr]    | |__^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `scene_renderer`
[INFO] [stderr]   --> src/scene_renderer.rs:16:8
[INFO] [stderr]    |
[INFO] [stderr] 16 | pub fn scene_renderer(colors_mutex: Arc<Mutex<Vec<Vector>>>, width: usize, height: usize, threads: usize) {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: the feature `iterator_step_by` has been stable since 1.28.0 and no longer requires an attribute to enable
[INFO] [stderr]  --> src/main.rs:1:12
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(iterator_step_by)]
[INFO] [stderr]   |            ^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(stable_features)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 21 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: 21 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.15s
[INFO] running `"docker" "inspect" "86bfc0dbea459f09a933f163b36fa042f9f4ca871f947795d177d59a313cde9e"`
[INFO] running `"docker" "rm" "-f" "86bfc0dbea459f09a933f163b36fa042f9f4ca871f947795d177d59a313cde9e"`
[INFO] [stdout] 86bfc0dbea459f09a933f163b36fa042f9f4ca871f947795d177d59a313cde9e