[INFO] updating cached repository https://github.com/tandalesc/rust-ray-tracer
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 0b27ecb44e5d39a4591abc32e50f3e743dd8f339
[INFO] checking tandalesc/rust-ray-tracer against master#45d050cde277b22a755847338f2acc2c7b834141 for pr-71393
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftandalesc%2Frust-ray-tracer" "/workspace/builds/worker-7/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/tandalesc/rust-ray-tracer 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/tandalesc/rust-ray-tracer
[INFO] finished tweaking git repo https://github.com/tandalesc/rust-ray-tracer
[INFO] tweaked toml for git repo https://github.com/tandalesc/rust-ray-tracer written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/tandalesc/rust-ray-tracer already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] a2dd39dd9432ffe1ac2bba2e6953522e9dc28cba967f37259c93a0167f5dbe82
[INFO] running `"docker" "start" "-a" "a2dd39dd9432ffe1ac2bba2e6953522e9dc28cba967f37259c93a0167f5dbe82"`
[INFO] [stderr]    Compiling libc v0.2.48
[INFO] [stderr]    Compiling num-traits v0.2.6
[INFO] [stderr]     Checking cfg-if v0.1.6
[INFO] [stderr]     Checking nodrop v0.1.13
[INFO] [stderr]    Compiling proc-macro2 v0.4.27
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling byteorder v1.3.1
[INFO] [stderr]    Compiling autocfg v0.1.2
[INFO] [stderr]     Checking memoffset v0.2.1
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling num-integer v0.1.39
[INFO] [stderr]     Checking scopeguard v0.3.3
[INFO] [stderr]    Compiling rayon-core v1.4.1
[INFO] [stderr]    Compiling num-derive v0.2.4
[INFO] [stderr]     Checking adler32 v1.0.3
[INFO] [stderr]    Compiling num-iter v0.1.37
[INFO] [stderr]    Compiling rayon v1.0.3
[INFO] [stderr]     Checking either v1.5.0
[INFO] [stderr]     Checking lzw v0.10.0
[INFO] [stderr]    Compiling num-rational v0.2.1
[INFO] [stderr]     Checking color_quant v1.0.1
[INFO] [stderr]     Checking scoped_threadpool v0.1.9
[INFO] [stderr]     Checking rand_jitter v0.1.3
[INFO] [stderr]     Checking crossbeam-utils v0.2.2
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]     Checking inflate v0.4.4
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]     Checking arrayvec v0.4.10
[INFO] [stderr]     Checking gif v0.10.1
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]     Checking crossbeam-epoch v0.3.1
[INFO] [stderr]    Compiling quote v0.6.11
[INFO] [stderr]     Checking deflate v0.7.19
[INFO] [stderr]     Checking num_cpus v1.9.0
[INFO] [stderr]     Checking rand_os v0.1.2
[INFO] [stderr]     Checking crossbeam-deque v0.2.0
[INFO] [stderr]    Compiling syn v0.15.26
[INFO] [stderr]    Compiling rand_pcg v0.1.1
[INFO] [stderr]     Checking approx v0.3.1
[INFO] [stderr]     Checking png v0.14.0
[INFO] [stderr]     Checking cgmath v0.17.0
[INFO] [stderr]     Checking jpeg-decoder v0.1.15
[INFO] [stderr]     Checking tiff v0.2.2
[INFO] [stderr]     Checking image v0.21.0
[INFO] [stderr]     Checking rust-ray-tracer v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/scene.rs:11:21
[INFO] [stderr]    |
[INFO] [stderr] 11 |     pub object: &'a Object,
[INFO] [stderr]    |                     ^^^^^^ help: use `dyn`: `dyn Object`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/scene.rs:14:47
[INFO] [stderr]    |
[INFO] [stderr] 14 |     pub fn new<'b>(distance: f64, object: &'b Object) -> Intersection<'b> {
[INFO] [stderr]    |                                               ^^^^^^ help: use `dyn`: `dyn Object`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/scene.rs:26:26
[INFO] [stderr]    |
[INFO] [stderr] 26 |     pub objects: Vec<&'a Object>,
[INFO] [stderr]    |                          ^^^^^^ help: use `dyn`: `dyn Object`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/scene.rs:27:25
[INFO] [stderr]    |
[INFO] [stderr] 27 |     pub lights: Vec<&'a Light>,
[INFO] [stderr]    |                         ^^^^^ help: use `dyn`: `dyn Light`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/scene.rs:100:87
[INFO] [stderr]     |
[INFO] [stderr] 100 | fn shade_diffuse(scene: &Scene, hit_point: Point, surface_normal: Direction, object: &Object) -> Color {
[INFO] [stderr]     |                                                                                       ^^^^^^ help: use `dyn`: `dyn Object`
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Diffuse`
[INFO] [stderr]   --> src/primitives.rs:32:5
[INFO] [stderr]    |
[INFO] [stderr] 32 |     Diffuse,
[INFO] [stderr]    |     ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Reflective`
[INFO] [stderr]   --> src/primitives.rs:33:5
[INFO] [stderr]    |
[INFO] [stderr] 33 | /     Reflective {
[INFO] [stderr] 34 | |         reflectivity: f64,
[INFO] [stderr] 35 | |         specular_color: Color,
[INFO] [stderr] 36 | |     },
[INFO] [stderr]    | |_____^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Refractive`
[INFO] [stderr]   --> src/primitives.rs:37:5
[INFO] [stderr]    |
[INFO] [stderr] 37 | /     Refractive {
[INFO] [stderr] 38 | |         index: f64,
[INFO] [stderr] 39 | |         transparency: f64,
[INFO] [stderr] 40 | |         reflectivity: f64,
[INFO] [stderr] 41 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `create_prime`
[INFO] [stderr]   --> src/ray.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 |     pub fn create_prime(x: u32, y: u32, scene: &Scene) -> Self {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `create_reflection`
[INFO] [stderr]   --> src/ray.rs:27:5
[INFO] [stderr]    |
[INFO] [stderr] 27 |     pub fn create_reflection(surface_normal: Direction, direction: Direction, hit_point: Point, bias: f64) -> Self {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `create_transmission`
[INFO] [stderr]   --> src/ray.rs:33:5
[INFO] [stderr]    |
[INFO] [stderr] 33 |     pub fn create_transmission(surface_normal: Direction, direction: Direction, hit_point: Point, bias: f64, index: f64) -> Option<Ray> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Intersection`
[INFO] [stderr]  --> src/scene.rs:9:12
[INFO] [stderr]   |
[INFO] [stderr] 9 | pub struct Intersection<'a> {
[INFO] [stderr]   |            ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/scene.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 14 |     pub fn new<'b>(distance: f64, object: &'b Object) -> Intersection<'b> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Scene`
[INFO] [stderr]   --> src/scene.rs:22:12
[INFO] [stderr]    |
[INFO] [stderr] 22 | pub struct Scene<'a> {
[INFO] [stderr]    |            ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `render`
[INFO] [stderr]   --> src/scene.rs:33:5
[INFO] [stderr]    |
[INFO] [stderr] 33 |     pub fn render<'b>(&self) -> DynamicImage {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `trace`
[INFO] [stderr]   --> src/scene.rs:49:5
[INFO] [stderr]    |
[INFO] [stderr] 49 |     pub fn trace(&self, ray: &Ray) -> Option<Intersection> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `get_color`
[INFO] [stderr]   --> src/scene.rs:57:4
[INFO] [stderr]    |
[INFO] [stderr] 57 | fn get_color(scene: &Scene, ray: &Ray, intersection: &Intersection, depth: u32) -> Color {
[INFO] [stderr]    |    ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `cast_ray`
[INFO] [stderr]   --> src/scene.rs:89:4
[INFO] [stderr]    |
[INFO] [stderr] 89 | fn cast_ray(scene: &Scene, ray: &Ray, depth: u32) -> Color {
[INFO] [stderr]    |    ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `shade_diffuse`
[INFO] [stderr]    --> src/scene.rs:100:4
[INFO] [stderr]     |
[INFO] [stderr] 100 | fn shade_diffuse(scene: &Scene, hit_point: Point, surface_normal: Direction, object: &Object) -> Color {
[INFO] [stderr]     |    ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `fresnel`
[INFO] [stderr]    --> src/scene.rs:121:4
[INFO] [stderr]     |
[INFO] [stderr] 121 | fn fresnel(surface_normal: Direction, direction: Direction, index: f64) -> f64 {
[INFO] [stderr]     |    ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 20 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/scene.rs:11:21
[INFO] [stderr]    |
[INFO] [stderr] 11 |     pub object: &'a Object,
[INFO] [stderr]    |                     ^^^^^^ help: use `dyn`: `dyn Object`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/scene.rs:14:47
[INFO] [stderr]    |
[INFO] [stderr] 14 |     pub fn new<'b>(distance: f64, object: &'b Object) -> Intersection<'b> {
[INFO] [stderr]    |                                               ^^^^^^ help: use `dyn`: `dyn Object`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/scene.rs:26:26
[INFO] [stderr]    |
[INFO] [stderr] 26 |     pub objects: Vec<&'a Object>,
[INFO] [stderr]    |                          ^^^^^^ help: use `dyn`: `dyn Object`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/scene.rs:27:25
[INFO] [stderr]    |
[INFO] [stderr] 27 |     pub lights: Vec<&'a Light>,
[INFO] [stderr]    |                         ^^^^^ help: use `dyn`: `dyn Light`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/scene.rs:100:87
[INFO] [stderr]     |
[INFO] [stderr] 100 | fn shade_diffuse(scene: &Scene, hit_point: Point, surface_normal: Direction, object: &Object) -> Color {
[INFO] [stderr]     |                                                                                       ^^^^^^ help: use `dyn`: `dyn Object`
[INFO] [stderr] 
[INFO] [stderr] warning: 5 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 55.07s
[INFO] running `"docker" "inspect" "a2dd39dd9432ffe1ac2bba2e6953522e9dc28cba967f37259c93a0167f5dbe82"`
[INFO] running `"docker" "rm" "-f" "a2dd39dd9432ffe1ac2bba2e6953522e9dc28cba967f37259c93a0167f5dbe82"`
[INFO] [stdout] a2dd39dd9432ffe1ac2bba2e6953522e9dc28cba967f37259c93a0167f5dbe82