[INFO] updating cached repository https://github.com/bumzack/raytracer
[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] 7997bd3a992cf722e4de5c646bacb01200cb8c8c
[INFO] testing bumzack/raytracer against 1.44.0 for beta-1.45-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbumzack%2Fraytracer" "/workspace/builds/worker-4/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/bumzack/raytracer on toolchain 1.44.0
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/bumzack/raytracer
[INFO] finished tweaking git repo https://github.com/bumzack/raytracer
[INFO] tweaked toml for git repo https://github.com/bumzack/raytracer written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/bumzack/raytracer already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "/opt/rustwide/cargo-home/bin/cargo" "+1.44.0" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 3393c9301b08ba7909e34760b746828776e6300416de17807c2439062afd0437
[INFO] running `"docker" "start" "-a" "3393c9301b08ba7909e34760b746828776e6300416de17807c2439062afd0437"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling proc-macro2 v0.4.29
[INFO] [stderr]    Compiling syn v0.15.33
[INFO] [stderr]    Compiling bitflags v1.0.5
[INFO] [stderr]    Compiling num-rational v0.2.1
[INFO] [stderr]    Compiling crossbeam-utils v0.2.2
[INFO] [stderr]    Compiling inflate v0.4.5
[INFO] [stderr]    Compiling deflate v0.7.19
[INFO] [stderr]    Compiling num_cpus v1.10.0
[INFO] [stderr]    Compiling time v0.1.42
[INFO] [stderr]    Compiling crossbeam-epoch v0.3.1
[INFO] [stderr]    Compiling png v0.14.1
[INFO] [stderr]    Compiling crossbeam-deque v0.2.0
[INFO] [stderr]    Compiling chrono v0.4.6
[INFO] [stderr]    Compiling rayon-core v1.4.1
[INFO] [stderr]    Compiling quote v0.6.12
[INFO] [stderr]    Compiling rayon v1.0.3
[INFO] [stderr]    Compiling jpeg-decoder v0.1.15
[INFO] [stderr]    Compiling num-derive v0.2.5
[INFO] [stderr]    Compiling tiff v0.2.2
[INFO] [stderr]    Compiling image v0.21.1
[INFO] [stderr]    Compiling raytracer v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `Intersection`
[INFO] [stderr]  --> src/v2/solidobject.rs:4:36
[INFO] [stderr]   |
[INFO] [stderr] 4 | use crate::algebra::intersection::{Intersection, IntersectionList};
[INFO] [stderr]   |                                    ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::fmt`
[INFO] [stderr]  --> src/v2/availableshapes.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::fmt;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::fmt::Display`
[INFO] [stderr]  --> src/v2/availableshapes.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::fmt::Display;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `IntersectionList`, `Intersection`
[INFO] [stderr]  --> src/v2/availableshapes.rs:4:36
[INFO] [stderr]   |
[INFO] [stderr] 4 | use crate::algebra::intersection::{Intersection, IntersectionList};
[INFO] [stderr]   |                                    ^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::algebra::optics::Optics`
[INFO] [stderr]  --> src/v2/availableshapes.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use crate::algebra::optics::Optics;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::algebra::optics::OpticsOps`
[INFO] [stderr]  --> src/v2/availableshapes.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use crate::algebra::optics::OpticsOps;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::algebra::vector::VectorOps`
[INFO] [stderr]  --> src/v2/availableshapes.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 | use crate::algebra::vector::VectorOps;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::v2::raytracemath`
[INFO] [stderr]  --> src/v2/availableshapes.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 | use crate::v2::raytracemath;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `IntersectionList`, `Intersection`
[INFO] [stderr]  --> src/v2/sphere.rs:4:36
[INFO] [stderr]   |
[INFO] [stderr] 4 | use crate::algebra::intersection::{Intersection, IntersectionList};
[INFO] [stderr]   |                                    ^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::algebra::optics::Optics`
[INFO] [stderr]  --> src/v2/sphere.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use crate::algebra::optics::Optics;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `IntersectionList`, `Intersection`
[INFO] [stderr]  --> src/v2/torus.rs:4:36
[INFO] [stderr]   |
[INFO] [stderr] 4 | use crate::algebra::intersection::{Intersection, IntersectionList};
[INFO] [stderr]   |                                    ^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::algebra::optics::Optics`
[INFO] [stderr]  --> src/v2/torus.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use crate::algebra::optics::Optics;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: patterns aren't allowed in functions without bodies
[INFO] [stderr]   --> src/algebra/solidobject.rs:15:78
[INFO] [stderr]    |
[INFO] [stderr] 15 |     fn append_all_intersections(&self, vantage: &Vector, direction: &Vector, mut intersection_list: &IntersectionList);
[INFO] [stderr]    |                                                                              ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(patterns_in_fns_without_body)]` on by default
[INFO] [stderr]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]    = note: for more information, see issue #35203 <https://github.com/rust-lang/rust/issues/35203>
[INFO] [stderr] 
[INFO] [stderr] warning: patterns aren't allowed in functions without bodies
[INFO] [stderr]   --> src/algebra/solidobject.rs:16:83
[INFO] [stderr]    |
[INFO] [stderr] 16 |     fn find_closest_intersection(&mut self, vantage: &Vector, direction: &Vector, mut intersection: &Intersection);
[INFO] [stderr]    |                                                                                   ^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]    = note: for more information, see issue #35203 <https://github.com/rust-lang/rust/issues/35203>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/utils/raytracer_error.rs:31:32
[INFO] [stderr]    |
[INFO] [stderr] 31 |     fn cause(&self) -> Option<&StdError> {
[INFO] [stderr]    |                                ^^^^^^^^ help: use `dyn`: `dyn StdError`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::algebra::optics::OpticsOps`
[INFO] [stderr]  --> src/v2/sphere.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use crate::algebra::optics::OpticsOps;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::algebra::vector::VectorOps`
[INFO] [stderr]  --> src/v2/sphere.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 | use crate::algebra::vector::VectorOps;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::algebra::optics::OpticsOps`
[INFO] [stderr]  --> src/v2/torus.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use crate::algebra::optics::OpticsOps;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::algebra::vector::VectorOps`
[INFO] [stderr]  --> src/v2/torus.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 | use crate::algebra::vector::VectorOps;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `angle_in_degrees`
[INFO] [stderr]   --> src/v2/sphere.rs:26:28
[INFO] [stderr]    |
[INFO] [stderr] 26 |     fn rotate_x(&mut self, angle_in_degrees: f32) {
[INFO] [stderr]    |                            ^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_angle_in_degrees`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `angle_in_degrees`
[INFO] [stderr]   --> src/v2/torus.rs:28:28
[INFO] [stderr]    |
[INFO] [stderr] 28 |     fn rotate_x(&mut self, angle_in_degrees: f32) {
[INFO] [stderr]    |                            ^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_angle_in_degrees`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `gloss_factor`
[INFO] [stderr]   --> src/algebra/optics.rs:78:43
[INFO] [stderr]    |
[INFO] [stderr] 78 |     fn set_matte_gloss_balance(&mut self, gloss_factor: f32, raw_matte_color: Color, raw_gloss_color: Color) {
[INFO] [stderr]    |                                           ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_gloss_factor`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `raw_matte_color`
[INFO] [stderr]   --> src/algebra/optics.rs:78:62
[INFO] [stderr]    |
[INFO] [stderr] 78 |     fn set_matte_gloss_balance(&mut self, gloss_factor: f32, raw_matte_color: Color, raw_gloss_color: Color) {
[INFO] [stderr]    |                                                              ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_raw_matte_color`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `raw_gloss_color`
[INFO] [stderr]   --> src/algebra/optics.rs:78:86
[INFO] [stderr]    |
[INFO] [stderr] 78 |     fn set_matte_gloss_balance(&mut self, gloss_factor: f32, raw_matte_color: Color, raw_gloss_color: Color) {
[INFO] [stderr]    |                                                                                      ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_raw_gloss_color`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `list`
[INFO] [stderr]   --> src/algebra/solidobject.rs:36:34
[INFO] [stderr]    |
[INFO] [stderr] 36 | pub fn pick_closest_intersection(list: &IntersectionList, intersection: &Intersection) -> i32 {
[INFO] [stderr]    |                                  ^^^^ help: if this is intentional, prefix it with an underscore: `_list`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `intersection`
[INFO] [stderr]   --> src/algebra/solidobject.rs:36:59
[INFO] [stderr]    |
[INFO] [stderr] 36 | pub fn pick_closest_intersection(list: &IntersectionList, intersection: &Intersection) -> i32 {
[INFO] [stderr]    |                                                           ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_intersection`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `list`
[INFO] [stderr]   --> src/algebra/intersection.rs:16:30
[INFO] [stderr]    |
[INFO] [stderr] 16 | fn pick_closest_intersection(list: &IntersectionList, intersection: &Intersection) -> i32 {
[INFO] [stderr]    |                              ^^^^ help: if this is intentional, prefix it with an underscore: `_list`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `intersection`
[INFO] [stderr]   --> src/algebra/intersection.rs:16:55
[INFO] [stderr]    |
[INFO] [stderr] 16 | fn pick_closest_intersection(list: &IntersectionList, intersection: &Intersection) -> i32 {
[INFO] [stderr]    |                                                       ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_intersection`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:23:9
[INFO] [stderr]    |
[INFO] [stderr] 23 |     let mut sphere = &mut shapes[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: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:28:9
[INFO] [stderr]    |
[INFO] [stderr] 28 |     let mut torus = &mut shapes[1];
[INFO] [stderr]    |         ----^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `EPSILON`
[INFO] [stderr]   --> src/v2/solidobject.rs:10:1
[INFO] [stderr]    |
[INFO] [stderr] 10 | pub const EPSILON: f32 = 1.0e-6;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `EPSILON`
[INFO] [stderr]   --> src/v2/availableshapes.rs:15:1
[INFO] [stderr]    |
[INFO] [stderr] 15 | pub const EPSILON: f32 = 1.0e-6;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `EPSILON`
[INFO] [stderr]  --> src/v2/raytracemath.rs:3:1
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub const EPSILON: f32 = 1.0e-6;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `REFRACTION_VACUUM`
[INFO] [stderr]  --> src/algebra/refraction.rs:3:1
[INFO] [stderr]   |
[INFO] [stderr] 3 | const REFRACTION_VACUUM: f32 = 1.0000;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `REFRACTION_AIR`
[INFO] [stderr]  --> src/algebra/refraction.rs:4:1
[INFO] [stderr]   |
[INFO] [stderr] 4 | const REFRACTION_AIR: f32 = 1.0003;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `REFRACTION_ICE`
[INFO] [stderr]  --> src/algebra/refraction.rs:5:1
[INFO] [stderr]   |
[INFO] [stderr] 5 | const REFRACTION_ICE: f32 = 1.3100;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `REFRACTION_WATER`
[INFO] [stderr]  --> src/algebra/refraction.rs:6:1
[INFO] [stderr]   |
[INFO] [stderr] 6 | const REFRACTION_WATER: f32 = 1.3330;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `REFRACTION_GASOLINE`
[INFO] [stderr]  --> src/algebra/refraction.rs:7:1
[INFO] [stderr]   |
[INFO] [stderr] 7 | const REFRACTION_GASOLINE: f32 = 1.3980;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `REFRACTION_GLASS`
[INFO] [stderr]  --> src/algebra/refraction.rs:8:1
[INFO] [stderr]   |
[INFO] [stderr] 8 | const REFRACTION_GLASS: f32 = 1.5500;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `REFRACTION_SAPPHIRE`
[INFO] [stderr]  --> src/algebra/refraction.rs:9:1
[INFO] [stderr]   |
[INFO] [stderr] 9 | const REFRACTION_SAPPHIRE: f32 = 1.7700;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `REFRACTION_DIAMOND`
[INFO] [stderr]   --> src/algebra/refraction.rs:10:1
[INFO] [stderr]    |
[INFO] [stderr] 10 | const REFRACTION_DIAMOND: f32 = 2.4190;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `REFRACTION_MINIMUM`
[INFO] [stderr]   --> src/algebra/refraction.rs:13:1
[INFO] [stderr]    |
[INFO] [stderr] 13 | const REFRACTION_MINIMUM: f32 = 1.0000;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `REFRACTION_MAXIMUM`
[INFO] [stderr]   --> src/algebra/refraction.rs:14:1
[INFO] [stderr]    |
[INFO] [stderr] 14 | const REFRACTION_MAXIMUM: f32 = 9.0000;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `validate_refraction`
[INFO] [stderr]   --> src/algebra/refraction.rs:17:8
[INFO] [stderr]    |
[INFO] [stderr] 17 | pub fn validate_refraction(refraction: f32) -> Result<(), RayTracerError>
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `EPSILON`
[INFO] [stderr]   --> src/algebra/solidobject.rs:11:1
[INFO] [stderr]    |
[INFO] [stderr] 11 | pub const EPSILON: f32 = 1.0e-6;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `pick_closest_intersection`
[INFO] [stderr]   --> src/algebra/solidobject.rs:36:8
[INFO] [stderr]    |
[INFO] [stderr] 36 | pub fn pick_closest_intersection(list: &IntersectionList, intersection: &Intersection) -> i32 {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/algebra/solidobject.rs:50:5
[INFO] [stderr]    |
[INFO] [stderr] 50 |     pub fn new() -> SolidObject {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `pick_closest_intersection`
[INFO] [stderr]   --> src/algebra/intersection.rs:16:4
[INFO] [stderr]    |
[INFO] [stderr] 16 | fn pick_closest_intersection(list: &IntersectionList, intersection: &Intersection) -> i32 {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/algebra/intersection.rs:21:5
[INFO] [stderr]    |
[INFO] [stderr] 21 |     fn new() -> Intersection {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `RefractionInvalid`
[INFO] [stderr]   --> src/utils/raytracer_error.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 |     RefractionInvalid(String),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 50 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 42.26s
[INFO] running `"docker" "inspect" "3393c9301b08ba7909e34760b746828776e6300416de17807c2439062afd0437"`
[INFO] running `"docker" "rm" "-f" "3393c9301b08ba7909e34760b746828776e6300416de17807c2439062afd0437"`
[INFO] [stdout] 3393c9301b08ba7909e34760b746828776e6300416de17807c2439062afd0437
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "/opt/rustwide/cargo-home/bin/cargo" "+1.44.0" "test" "--frozen" "--no-run"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] a0aa49a4a724b1acf0a1f80e21da09c6c730ec0d44e485cf6bc16806d2846e9d
[INFO] running `"docker" "start" "-a" "a0aa49a4a724b1acf0a1f80e21da09c6c730ec0d44e485cf6bc16806d2846e9d"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling raytracer v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `Intersection`
[INFO] [stderr]  --> src/v2/solidobject.rs:4:36
[INFO] [stderr]   |
[INFO] [stderr] 4 | use crate::algebra::intersection::{Intersection, IntersectionList};
[INFO] [stderr]   |                                    ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::fmt`
[INFO] [stderr]  --> src/v2/availableshapes.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::fmt;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::fmt::Display`
[INFO] [stderr]  --> src/v2/availableshapes.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::fmt::Display;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `IntersectionList`, `Intersection`
[INFO] [stderr]  --> src/v2/availableshapes.rs:4:36
[INFO] [stderr]   |
[INFO] [stderr] 4 | use crate::algebra::intersection::{Intersection, IntersectionList};
[INFO] [stderr]   |                                    ^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::algebra::optics::Optics`
[INFO] [stderr]  --> src/v2/availableshapes.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use crate::algebra::optics::Optics;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::algebra::optics::OpticsOps`
[INFO] [stderr]  --> src/v2/availableshapes.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use crate::algebra::optics::OpticsOps;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::algebra::vector::VectorOps`
[INFO] [stderr]  --> src/v2/availableshapes.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 | use crate::algebra::vector::VectorOps;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::v2::raytracemath`
[INFO] [stderr]  --> src/v2/availableshapes.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 | use crate::v2::raytracemath;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `IntersectionList`, `Intersection`
[INFO] [stderr]  --> src/v2/sphere.rs:4:36
[INFO] [stderr]   |
[INFO] [stderr] 4 | use crate::algebra::intersection::{Intersection, IntersectionList};
[INFO] [stderr]   |                                    ^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::algebra::optics::Optics`
[INFO] [stderr]  --> src/v2/sphere.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use crate::algebra::optics::Optics;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `IntersectionList`, `Intersection`
[INFO] [stderr]  --> src/v2/torus.rs:4:36
[INFO] [stderr]   |
[INFO] [stderr] 4 | use crate::algebra::intersection::{Intersection, IntersectionList};
[INFO] [stderr]   |                                    ^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::algebra::optics::Optics`
[INFO] [stderr]  --> src/v2/torus.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use crate::algebra::optics::Optics;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: patterns aren't allowed in functions without bodies
[INFO] [stderr]   --> src/algebra/solidobject.rs:15:78
[INFO] [stderr]    |
[INFO] [stderr] 15 |     fn append_all_intersections(&self, vantage: &Vector, direction: &Vector, mut intersection_list: &IntersectionList);
[INFO] [stderr]    |                                                                              ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(patterns_in_fns_without_body)]` on by default
[INFO] [stderr]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]    = note: for more information, see issue #35203 <https://github.com/rust-lang/rust/issues/35203>
[INFO] [stderr] 
[INFO] [stderr] warning: patterns aren't allowed in functions without bodies
[INFO] [stderr]   --> src/algebra/solidobject.rs:16:83
[INFO] [stderr]    |
[INFO] [stderr] 16 |     fn find_closest_intersection(&mut self, vantage: &Vector, direction: &Vector, mut intersection: &Intersection);
[INFO] [stderr]    |                                                                                   ^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]    = note: for more information, see issue #35203 <https://github.com/rust-lang/rust/issues/35203>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/utils/raytracer_error.rs:31:32
[INFO] [stderr]    |
[INFO] [stderr] 31 |     fn cause(&self) -> Option<&StdError> {
[INFO] [stderr]    |                                ^^^^^^^^ help: use `dyn`: `dyn StdError`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] error[E0369]: cannot subtract `algebra::color::Color` from `algebra::color::Color`
[INFO] [stderr]    --> src/algebra/color.rs:162:38
[INFO] [stderr]     |
[INFO] [stderr] 162 |     println!("diff of a + b = {}", c - c1);
[INFO] [stderr]     |                                    - ^ -- algebra::color::Color
[INFO] [stderr]     |                                    |
[INFO] [stderr]     |                                    algebra::color::Color
[INFO] [stderr]     |
[INFO] [stderr]     = note: an implementation of `std::ops::Sub` might be missing for `algebra::color::Color`
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::algebra::optics::OpticsOps`
[INFO] [stderr]  --> src/v2/sphere.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use crate::algebra::optics::OpticsOps;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::algebra::vector::VectorOps`
[INFO] [stderr]  --> src/v2/sphere.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 | use crate::algebra::vector::VectorOps;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::algebra::optics::OpticsOps`
[INFO] [stderr]  --> src/v2/torus.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use crate::algebra::optics::OpticsOps;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::algebra::vector::VectorOps`
[INFO] [stderr]  --> src/v2/torus.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 | use crate::algebra::vector::VectorOps;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error; 19 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0369`.
[INFO] [stderr] error: could not compile `raytracer`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "a0aa49a4a724b1acf0a1f80e21da09c6c730ec0d44e485cf6bc16806d2846e9d"`
[INFO] running `"docker" "rm" "-f" "a0aa49a4a724b1acf0a1f80e21da09c6c730ec0d44e485cf6bc16806d2846e9d"`
[INFO] [stdout] a0aa49a4a724b1acf0a1f80e21da09c6c730ec0d44e485cf6bc16806d2846e9d