[INFO] cloning repository https://github.com/robertf224/ray-tracing-in-a-weekend-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/robertf224/ray-tracing-in-a-weekend-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frobertf224%2Fray-tracing-in-a-weekend-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frobertf224%2Fray-tracing-in-a-weekend-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 18e7c957056590a495a8d83f853d49f6acc796a8
[INFO] testing robertf224/ray-tracing-in-a-weekend-rust against beta-2021-01-01 for beta-1.50-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frobertf224%2Fray-tracing-in-a-weekend-rust" "/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/robertf224/ray-tracing-in-a-weekend-rust on toolchain beta-2021-01-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/robertf224/ray-tracing-in-a-weekend-rust
[INFO] finished tweaking git repo https://github.com/robertf224/ray-tracing-in-a-weekend-rust
[INFO] tweaked toml for git repo https://github.com/robertf224/ray-tracing-in-a-weekend-rust written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/robertf224/ray-tracing-in-a-weekend-rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "fetch" "--locked" "--manifest-path" "Cargo.toml", 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] 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" "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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "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] dd77cc328354afcfd5bd349d57a00e6275fc0494485947d802ed5a04412118a1
[INFO] running `Command { std: "docker" "start" "-a" "dd77cc328354afcfd5bd349d57a00e6275fc0494485947d802ed5a04412118a1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dd77cc328354afcfd5bd349d57a00e6275fc0494485947d802ed5a04412118a1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dd77cc328354afcfd5bd349d57a00e6275fc0494485947d802ed5a04412118a1", kill_on_drop: false }`
[INFO] [stdout] dd77cc328354afcfd5bd349d57a00e6275fc0494485947d802ed5a04412118a1
[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" "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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2a41ef5d46d613cce6105db716bda881bc2a5b4603ac52ad9d7a45e118f0db01
[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" "2a41ef5d46d613cce6105db716bda881bc2a5b4603ac52ad9d7a45e118f0db01", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.46
[INFO] [stderr]    Compiling autocfg v0.1.1
[INFO] [stderr]    Compiling version_check v0.1.5
[INFO] [stderr]    Compiling regex v1.1.0
[INFO] [stderr]    Compiling rand_xorshift v0.1.1
[INFO] [stderr]    Compiling regex-syntax v0.6.4
[INFO] [stderr]    Compiling thread_local v0.3.6
[INFO] [stderr]    Compiling parking_lot_core v0.4.0
[INFO] [stderr]    Compiling number_prefix v0.2.8
[INFO] [stderr]    Compiling memchr v2.1.2
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand v0.6.3
[INFO] [stderr]    Compiling rand_os v0.1.0
[INFO] [stderr]    Compiling termios v0.3.1
[INFO] [stderr]    Compiling atty v0.2.11
[INFO] [stderr]    Compiling clicolors-control v1.0.0
[INFO] [stderr]    Compiling aho-corasick v0.6.9
[INFO] [stderr]    Compiling parking_lot v0.7.1
[INFO] [stderr]    Compiling console v0.7.2
[INFO] [stderr]    Compiling indicatif v0.11.0
[INFO] [stderr]    Compiling ray-tracing-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/hitable.rs:9:27
[INFO] [stdout]   |
[INFO] [stdout] 9 |     pub material: &'a Box<Material>
[INFO] [stdout]   |                           ^^^^^^^^ help: use `dyn`: `dyn Material`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/hitable.rs:16:34
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub fn closest(objects: &Vec<Box<Hitable>>, ray: Ray, t_min: f64, t_max: f64) -> Option<Hit> {
[INFO] [stdout]    |                                  ^^^^^^^ help: use `dyn`: `dyn Hitable`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/sphere.rs:9:23
[INFO] [stdout]   |
[INFO] [stdout] 9 |     pub material: Box<Material>
[INFO] [stdout]   |                       ^^^^^^^^ help: use `dyn`: `dyn Material`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/sphere.rs:13:57
[INFO] [stdout]    |
[INFO] [stdout] 13 |     pub fn new(center: Vec3, radius: f64, material: Box<Material>) -> Sphere {
[INFO] [stdout]    |                                                         ^^^^^^^^ help: use `dyn`: `dyn Material`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/main.rs:64:36
[INFO] [stdout]    |
[INFO] [stdout] 64 | fn color(ray: Ray, world: &Vec<Box<Hitable>>, depth: u32) -> Vec3 {
[INFO] [stdout]    |                                    ^^^^^^^ help: use `dyn`: `dyn Hitable`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/main.rs:89:30
[INFO] [stdout]    |
[INFO] [stdout] 89 | fn random_world() -> Vec<Box<Hitable>> {
[INFO] [stdout]    |                              ^^^^^^^ help: use `dyn`: `dyn Hitable`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/main.rs:91:28
[INFO] [stdout]    |
[INFO] [stdout] 91 |     let mut world: Vec<Box<Hitable>> = vec![Box::new(ground)];
[INFO] [stdout]    |                            ^^^^^^^ help: use `dyn`: `dyn Hitable`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:102:31
[INFO] [stdout]     |
[INFO] [stdout] 102 |             let material: Box<Material>;
[INFO] [stdout]     |                               ^^^^^^^^ help: use `dyn`: `dyn Material`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `N` should have a snake case name
[INFO] [stdout]   --> src/materials/utils.rs:14:9
[INFO] [stdout]    |
[INFO] [stdout] 14 |     let N = unit_normal;
[INFO] [stdout]    |         ^ help: convert the identifier to snake case: `n`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `N` should have a snake case name
[INFO] [stdout]   --> src/materials/utils.rs:35:9
[INFO] [stdout]    |
[INFO] [stdout] 35 |     let N = unit_normal;
[INFO] [stdout]    |         ^ help: convert the identifier to snake case: `n`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `R0` should have a snake case name
[INFO] [stdout]   --> src/materials/utils.rs:38:9
[INFO] [stdout]    |
[INFO] [stdout] 38 |     let R0 = ((n - np) / (n + np)).powi(2);
[INFO] [stdout]    |         ^^ help: convert the identifier to snake case: `r0`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 11 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 21.25s
[INFO] running `Command { std: "docker" "inspect" "2a41ef5d46d613cce6105db716bda881bc2a5b4603ac52ad9d7a45e118f0db01", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2a41ef5d46d613cce6105db716bda881bc2a5b4603ac52ad9d7a45e118f0db01", kill_on_drop: false }`
[INFO] [stdout] 2a41ef5d46d613cce6105db716bda881bc2a5b4603ac52ad9d7a45e118f0db01
[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" "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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 27b95bad443cff80575d699629a447c162876a143d75818f880e9d374d4ef819
[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" "27b95bad443cff80575d699629a447c162876a143d75818f880e9d374d4ef819", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling ray-tracing-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/hitable.rs:9:27
[INFO] [stdout]   |
[INFO] [stdout] 9 |     pub material: &'a Box<Material>
[INFO] [stdout]   |                           ^^^^^^^^ help: use `dyn`: `dyn Material`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/hitable.rs:16:34
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub fn closest(objects: &Vec<Box<Hitable>>, ray: Ray, t_min: f64, t_max: f64) -> Option<Hit> {
[INFO] [stdout]    |                                  ^^^^^^^ help: use `dyn`: `dyn Hitable`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/sphere.rs:9:23
[INFO] [stdout]   |
[INFO] [stdout] 9 |     pub material: Box<Material>
[INFO] [stdout]   |                       ^^^^^^^^ help: use `dyn`: `dyn Material`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/sphere.rs:13:57
[INFO] [stdout]    |
[INFO] [stdout] 13 |     pub fn new(center: Vec3, radius: f64, material: Box<Material>) -> Sphere {
[INFO] [stdout]    |                                                         ^^^^^^^^ help: use `dyn`: `dyn Material`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/main.rs:64:36
[INFO] [stdout]    |
[INFO] [stdout] 64 | fn color(ray: Ray, world: &Vec<Box<Hitable>>, depth: u32) -> Vec3 {
[INFO] [stdout]    |                                    ^^^^^^^ help: use `dyn`: `dyn Hitable`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/main.rs:89:30
[INFO] [stdout]    |
[INFO] [stdout] 89 | fn random_world() -> Vec<Box<Hitable>> {
[INFO] [stdout]    |                              ^^^^^^^ help: use `dyn`: `dyn Hitable`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/main.rs:91:28
[INFO] [stdout]    |
[INFO] [stdout] 91 |     let mut world: Vec<Box<Hitable>> = vec![Box::new(ground)];
[INFO] [stdout]    |                            ^^^^^^^ help: use `dyn`: `dyn Hitable`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:102:31
[INFO] [stdout]     |
[INFO] [stdout] 102 |             let material: Box<Material>;
[INFO] [stdout]     |                               ^^^^^^^^ help: use `dyn`: `dyn Material`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `N` should have a snake case name
[INFO] [stdout]   --> src/materials/utils.rs:14:9
[INFO] [stdout]    |
[INFO] [stdout] 14 |     let N = unit_normal;
[INFO] [stdout]    |         ^ help: convert the identifier to snake case: `n`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `N` should have a snake case name
[INFO] [stdout]   --> src/materials/utils.rs:35:9
[INFO] [stdout]    |
[INFO] [stdout] 35 |     let N = unit_normal;
[INFO] [stdout]    |         ^ help: convert the identifier to snake case: `n`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `R0` should have a snake case name
[INFO] [stdout]   --> src/materials/utils.rs:38:9
[INFO] [stdout]    |
[INFO] [stdout] 38 |     let R0 = ((n - np) / (n + np)).powi(2);
[INFO] [stdout]    |         ^^ help: convert the identifier to snake case: `r0`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.49s
[INFO] [stdout] warning: 11 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "27b95bad443cff80575d699629a447c162876a143d75818f880e9d374d4ef819", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "27b95bad443cff80575d699629a447c162876a143d75818f880e9d374d4ef819", kill_on_drop: false }`
[INFO] [stdout] 27b95bad443cff80575d699629a447c162876a143d75818f880e9d374d4ef819
[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" "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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 1eb4a07749b270752c1a5ba4a909c00f59efe12afca8b214ef6254c501dc02e5
[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" "1eb4a07749b270752c1a5ba4a909c00f59efe12afca8b214ef6254c501dc02e5", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/hitable.rs:9:27
[INFO] [stderr]   |
[INFO] [stderr] 9 |     pub material: &'a Box<Material>
[INFO] [stderr]   |                           ^^^^^^^^ help: use `dyn`: `dyn Material`
[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/hitable.rs:16:34
[INFO] [stderr]    |
[INFO] [stderr] 16 | pub fn closest(objects: &Vec<Box<Hitable>>, ray: Ray, t_min: f64, t_max: f64) -> Option<Hit> {
[INFO] [stderr]    |                                  ^^^^^^^ help: use `dyn`: `dyn Hitable`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/sphere.rs:9:23
[INFO] [stderr]   |
[INFO] [stderr] 9 |     pub material: Box<Material>
[INFO] [stderr]   |                       ^^^^^^^^ help: use `dyn`: `dyn Material`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/sphere.rs:13:57
[INFO] [stderr]    |
[INFO] [stderr] 13 |     pub fn new(center: Vec3, radius: f64, material: Box<Material>) -> Sphere {
[INFO] [stderr]    |                                                         ^^^^^^^^ help: use `dyn`: `dyn Material`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:64:36
[INFO] [stderr]    |
[INFO] [stderr] 64 | fn color(ray: Ray, world: &Vec<Box<Hitable>>, depth: u32) -> Vec3 {
[INFO] [stderr]    |                                    ^^^^^^^ help: use `dyn`: `dyn Hitable`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:89:30
[INFO] [stderr]    |
[INFO] [stderr] 89 | fn random_world() -> Vec<Box<Hitable>> {
[INFO] [stderr]    |                              ^^^^^^^ help: use `dyn`: `dyn Hitable`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:91:28
[INFO] [stderr]    |
[INFO] [stderr] 91 |     let mut world: Vec<Box<Hitable>> = vec![Box::new(ground)];
[INFO] [stderr]    |                            ^^^^^^^ help: use `dyn`: `dyn Hitable`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:102:31
[INFO] [stderr]     |
[INFO] [stderr] 102 |             let material: Box<Material>;
[INFO] [stderr]     |                               ^^^^^^^^ help: use `dyn`: `dyn Material`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `N` should have a snake case name
[INFO] [stderr]   --> src/materials/utils.rs:14:9
[INFO] [stderr]    |
[INFO] [stderr] 14 |     let N = unit_normal;
[INFO] [stderr]    |         ^ help: convert the identifier to snake case: `n`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable `N` should have a snake case name
[INFO] [stderr]   --> src/materials/utils.rs:35:9
[INFO] [stderr]    |
[INFO] [stderr] 35 |     let N = unit_normal;
[INFO] [stderr]    |         ^ help: convert the identifier to snake case: `n`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `R0` should have a snake case name
[INFO] [stderr]   --> src/materials/utils.rs:38:9
[INFO] [stderr]    |
[INFO] [stderr] 38 |     let R0 = ((n - np) / (n + np)).powi(2);
[INFO] [stderr]    |         ^^ help: convert the identifier to snake case: `r0`
[INFO] [stderr] 
[INFO] [stderr] warning: 11 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.09s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/ray_tracing_rust-c0cf9cf1eedab220
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test materials::tests::utils_tests::refraction ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "1eb4a07749b270752c1a5ba4a909c00f59efe12afca8b214ef6254c501dc02e5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1eb4a07749b270752c1a5ba4a909c00f59efe12afca8b214ef6254c501dc02e5", kill_on_drop: false }`
[INFO] [stdout] 1eb4a07749b270752c1a5ba4a909c00f59efe12afca8b214ef6254c501dc02e5