[INFO] cloning repository https://github.com/mdellavo/rust-tracer
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mdellavo/rust-tracer" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmdellavo%2Frust-tracer", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmdellavo%2Frust-tracer'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] da3ba3932a31f88cd74500e7e6446c1ddc3c4f4f
[INFO] checking mdellavo/rust-tracer against master#568f6a8641e391ffcdcdb03e79d0901731d8d399 for pr-117164-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmdellavo%2Frust-tracer" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mdellavo/rust-tracer on toolchain 568f6a8641e391ffcdcdb03e79d0901731d8d399
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+568f6a8641e391ffcdcdb03e79d0901731d8d399" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/mdellavo/rust-tracer
[INFO] finished tweaking git repo https://github.com/mdellavo/rust-tracer
[INFO] tweaked toml for git repo https://github.com/mdellavo/rust-tracer written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/mdellavo/rust-tracer already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+568f6a8641e391ffcdcdb03e79d0901731d8d399" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: dependency (image) specified without providing a local path, Git repository, version, or workspace dependency to use. This will be considered an error in future versions
[INFO] [stderr] warning: dependency (indicatif) specified without providing a local path, Git repository, version, or workspace dependency to use. This will be considered an error in future versions
[INFO] [stderr] warning: dependency (nalgebra) specified without providing a local path, Git repository, version, or workspace dependency to use. This will be considered an error in future versions
[INFO] [stderr] warning: dependency (rand) specified without providing a local path, Git repository, version, or workspace dependency to use. This will be considered an error in future versions
[INFO] [stderr] warning: dependency (threadpool) specified without providing a local path, Git repository, version, or workspace dependency to use. This will be considered an error in future versions
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded termios v0.3.1
[INFO] [stderr]   Downloaded number_prefix v0.3.0
[INFO] [stderr]   Downloaded encode_unicode v0.3.6
[INFO] [stderr]   Downloaded clicolors-control v1.0.1
[INFO] [stderr]   Downloaded byteorder v1.3.2
[INFO] [stderr]   Downloaded unicode-width v0.1.7
[INFO] [stderr]   Downloaded indicatif v0.14.0
[INFO] [stderr]   Downloaded image v0.23.0-preview.0
[INFO] [stderr]   Downloaded regex-syntax v0.6.14
[INFO] [stderr]   Downloaded regex v1.3.4
[INFO] [stderr]   Downloaded console v0.9.2
[INFO] [stderr]   Downloaded threadpool v1.7.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+568f6a8641e391ffcdcdb03e79d0901731d8d399" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 673b2a05e8203c4f0cc02e0d7346bcca0c7a91972011a387986974256af90ade
[INFO] running `Command { std: "docker" "start" "-a" "673b2a05e8203c4f0cc02e0d7346bcca0c7a91972011a387986974256af90ade", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "673b2a05e8203c4f0cc02e0d7346bcca0c7a91972011a387986974256af90ade", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "673b2a05e8203c4f0cc02e0d7346bcca0c7a91972011a387986974256af90ade", kill_on_drop: false }`
[INFO] [stdout] 673b2a05e8203c4f0cc02e0d7346bcca0c7a91972011a387986974256af90ade
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+568f6a8641e391ffcdcdb03e79d0901731d8d399" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] df66ad45a1417f2d69cdf0fae01a4a8dbbe290eeaa90ddfd4fca9d049c72882e
[INFO] running `Command { std: "docker" "start" "-a" "df66ad45a1417f2d69cdf0fae01a4a8dbbe290eeaa90ddfd4fca9d049c72882e", kill_on_drop: false }`
[INFO] [stderr] warning: dependency (image) specified without providing a local path, Git repository, version, or workspace dependency to use. This will be considered an error in future versions
[INFO] [stderr] warning: dependency (indicatif) specified without providing a local path, Git repository, version, or workspace dependency to use. This will be considered an error in future versions
[INFO] [stderr] warning: dependency (nalgebra) specified without providing a local path, Git repository, version, or workspace dependency to use. This will be considered an error in future versions
[INFO] [stderr] warning: dependency (rand) specified without providing a local path, Git repository, version, or workspace dependency to use. This will be considered an error in future versions
[INFO] [stderr] warning: dependency (threadpool) specified without providing a local path, Git repository, version, or workspace dependency to use. This will be considered an error in future versions
[INFO] [stderr]    Compiling libc v0.2.66
[INFO] [stderr]    Compiling byteorder v1.3.2
[INFO] [stderr]    Compiling num-integer v0.1.42
[INFO] [stderr]     Checking regex-syntax v0.6.14
[INFO] [stderr]     Checking unicode-width v0.1.7
[INFO] [stderr]     Checking generic-array v0.13.2
[INFO] [stderr]     Checking number_prefix v0.3.0
[INFO] [stderr]     Checking deflate v0.7.20
[INFO] [stderr]     Checking tiff v0.4.0
[INFO] [stderr]     Checking num-rational v0.2.3
[INFO] [stderr]     Checking num-iter v0.1.40
[INFO] [stderr]     Checking png v0.15.3
[INFO] [stderr]     Checking getrandom v0.1.14
[INFO] [stderr]     Checking num_cpus v1.12.0
[INFO] [stderr]     Checking clicolors-control v1.0.1
[INFO] [stderr]     Checking termios v0.3.1
[INFO] [stderr]     Checking rayon-core v1.7.0
[INFO] [stderr]     Checking threadpool v1.7.1
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking regex v1.3.4
[INFO] [stderr]     Checking rayon v1.3.0
[INFO] [stderr]     Checking rand_chacha v0.2.1
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking console v0.9.2
[INFO] [stderr]     Checking rand_distr v0.2.2
[INFO] [stderr]     Checking indicatif v0.14.0
[INFO] [stderr]     Checking nalgebra v0.19.0
[INFO] [stderr]     Checking jpeg-decoder v0.1.18
[INFO] [stderr]     Checking image v0.23.0-preview.0
[INFO] [stderr]     Checking rust-tracer v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unreachable statement
[INFO] [stdout]   --> src/main.rs:37:5
[INFO] [stdout]    |
[INFO] [stdout] 36 |     return Vec3f::new(0.0, 0.0, 0.0);
[INFO] [stdout]    |     -------------------------------- any code following this expression is unreachable
[INFO] [stdout] 37 |     let unit = ray.direction().normalize();
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable statement
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Material`
[INFO] [stdout]   --> src/main.rs:24:56
[INFO] [stdout]    |
[INFO] [stdout] 24 | use material::{Dielectric, Diffuse, DiffuseLight, Hit, Material, Metal};
[INFO] [stdout]    |                                                        ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `u`
[INFO] [stdout]   --> src/material.rs:21:23
[INFO] [stdout]    |
[INFO] [stdout] 21 |     fn emitted(&self, u: f64, v: f64, hit: &Hit) -> Vec3f {
[INFO] [stdout]    |                       ^ help: if this is intentional, prefix it with an underscore: `_u`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `v`
[INFO] [stdout]   --> src/material.rs:21:31
[INFO] [stdout]    |
[INFO] [stdout] 21 |     fn emitted(&self, u: f64, v: f64, hit: &Hit) -> Vec3f {
[INFO] [stdout]    |                               ^ help: if this is intentional, prefix it with an underscore: `_v`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `hit`
[INFO] [stdout]   --> src/material.rs:21:39
[INFO] [stdout]    |
[INFO] [stdout] 21 |     fn emitted(&self, u: f64, v: f64, hit: &Hit) -> Vec3f {
[INFO] [stdout]    |                                       ^^^ help: if this is intentional, prefix it with an underscore: `_hit`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ray`
[INFO] [stdout]   --> src/material.rs:31:23
[INFO] [stdout]    |
[INFO] [stdout] 31 |     fn scatter(&self, ray: &Ray, hit: &Hit) -> Option<(Vec3f, Ray)> {
[INFO] [stdout]    |                       ^^^ help: if this is intentional, prefix it with an underscore: `_ray`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ray`
[INFO] [stdout]    --> src/material.rs:135:23
[INFO] [stdout]     |
[INFO] [stdout] 135 |     fn scatter(&self, ray: &Ray, hit: &Hit) -> Option<(Vec3f, Ray)> {
[INFO] [stdout]     |                       ^^^ help: if this is intentional, prefix it with an underscore: `_ray`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `hit`
[INFO] [stdout]    --> src/material.rs:135:34
[INFO] [stdout]     |
[INFO] [stdout] 135 |     fn scatter(&self, ray: &Ray, hit: &Hit) -> Option<(Vec3f, Ray)> {
[INFO] [stdout]     |                                  ^^^ help: if this is intentional, prefix it with an underscore: `_hit`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `u`
[INFO] [stdout]   --> src/texture.rs:19:21
[INFO] [stdout]    |
[INFO] [stdout] 19 |     fn value(&self, u: f64, v: f64, p: &Hit) -> Vec3f {
[INFO] [stdout]    |                     ^ help: if this is intentional, prefix it with an underscore: `_u`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `v`
[INFO] [stdout]   --> src/texture.rs:19:29
[INFO] [stdout]    |
[INFO] [stdout] 19 |     fn value(&self, u: f64, v: f64, p: &Hit) -> Vec3f {
[INFO] [stdout]    |                             ^ help: if this is intentional, prefix it with an underscore: `_v`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `p`
[INFO] [stdout]   --> src/texture.rs:19:37
[INFO] [stdout]    |
[INFO] [stdout] 19 |     fn value(&self, u: f64, v: f64, p: &Hit) -> Vec3f {
[INFO] [stdout]    |                                     ^ help: if this is intentional, prefix it with an underscore: `_p`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `p`
[INFO] [stdout]   --> src/texture.rs:49:37
[INFO] [stdout]    |
[INFO] [stdout] 49 |     fn value(&self, u: f64, v: f64, p: &Hit) -> Vec3f {
[INFO] [stdout]    |                                     ^ help: if this is intentional, prefix it with an underscore: `_p`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ray`
[INFO] [stdout]   --> src/main.rs:35:14
[INFO] [stdout]    |
[INFO] [stdout] 35 | fn color_sky(ray: &Ray) -> Vec3f {
[INFO] [stdout]    |              ^^^ help: if this is intentional, prefix it with an underscore: `_ray`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable statement
[INFO] [stdout]   --> src/main.rs:37:5
[INFO] [stdout]    |
[INFO] [stdout] 36 |     return Vec3f::new(0.0, 0.0, 0.0);
[INFO] [stdout]    |     -------------------------------- any code following this expression is unreachable
[INFO] [stdout] 37 |     let unit = ray.direction().normalize();
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable statement
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: floating-point types cannot be used in patterns
[INFO] [stdout]    --> src/main.rs:143:21
[INFO] [stdout]     |
[INFO] [stdout] 143 |                     0.0..=0.4 => {
[INFO] [stdout]     |                     ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #41620 <https://github.com/rust-lang/rust/issues/41620>
[INFO] [stdout]     = note: `#[warn(illegal_floating_point_literal_pattern)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: floating-point types cannot be used in patterns
[INFO] [stdout]    --> src/main.rs:143:27
[INFO] [stdout]     |
[INFO] [stdout] 143 |                     0.0..=0.4 => {
[INFO] [stdout]     |                           ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #41620 <https://github.com/rust-lang/rust/issues/41620>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: floating-point types cannot be used in patterns
[INFO] [stdout]    --> src/main.rs:154:21
[INFO] [stdout]     |
[INFO] [stdout] 154 |                     0.4..=0.8 => {
[INFO] [stdout]     |                     ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #41620 <https://github.com/rust-lang/rust/issues/41620>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: floating-point types cannot be used in patterns
[INFO] [stdout]    --> src/main.rs:154:27
[INFO] [stdout]     |
[INFO] [stdout] 154 |                     0.4..=0.8 => {
[INFO] [stdout]     |                           ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #41620 <https://github.com/rust-lang/rust/issues/41620>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Material`
[INFO] [stdout]   --> src/main.rs:24:56
[INFO] [stdout]    |
[INFO] [stdout] 24 | use material::{Dielectric, Diffuse, DiffuseLight, Hit, Material, Metal};
[INFO] [stdout]    |                                                        ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 17 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `u`
[INFO] [stdout]   --> src/material.rs:21:23
[INFO] [stdout]    |
[INFO] [stdout] 21 |     fn emitted(&self, u: f64, v: f64, hit: &Hit) -> Vec3f {
[INFO] [stdout]    |                       ^ help: if this is intentional, prefix it with an underscore: `_u`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `v`
[INFO] [stdout]   --> src/material.rs:21:31
[INFO] [stdout]    |
[INFO] [stdout] 21 |     fn emitted(&self, u: f64, v: f64, hit: &Hit) -> Vec3f {
[INFO] [stdout]    |                               ^ help: if this is intentional, prefix it with an underscore: `_v`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `hit`
[INFO] [stdout]   --> src/material.rs:21:39
[INFO] [stdout]    |
[INFO] [stdout] 21 |     fn emitted(&self, u: f64, v: f64, hit: &Hit) -> Vec3f {
[INFO] [stdout]    |                                       ^^^ help: if this is intentional, prefix it with an underscore: `_hit`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ray`
[INFO] [stdout]   --> src/material.rs:31:23
[INFO] [stdout]    |
[INFO] [stdout] 31 |     fn scatter(&self, ray: &Ray, hit: &Hit) -> Option<(Vec3f, Ray)> {
[INFO] [stdout]    |                       ^^^ help: if this is intentional, prefix it with an underscore: `_ray`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ray`
[INFO] [stdout]    --> src/material.rs:135:23
[INFO] [stdout]     |
[INFO] [stdout] 135 |     fn scatter(&self, ray: &Ray, hit: &Hit) -> Option<(Vec3f, Ray)> {
[INFO] [stdout]     |                       ^^^ help: if this is intentional, prefix it with an underscore: `_ray`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `hit`
[INFO] [stdout]    --> src/material.rs:135:34
[INFO] [stdout]     |
[INFO] [stdout] 135 |     fn scatter(&self, ray: &Ray, hit: &Hit) -> Option<(Vec3f, Ray)> {
[INFO] [stdout]     |                                  ^^^ help: if this is intentional, prefix it with an underscore: `_hit`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `u`
[INFO] [stdout]   --> src/texture.rs:19:21
[INFO] [stdout]    |
[INFO] [stdout] 19 |     fn value(&self, u: f64, v: f64, p: &Hit) -> Vec3f {
[INFO] [stdout]    |                     ^ help: if this is intentional, prefix it with an underscore: `_u`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `v`
[INFO] [stdout]   --> src/texture.rs:19:29
[INFO] [stdout]    |
[INFO] [stdout] 19 |     fn value(&self, u: f64, v: f64, p: &Hit) -> Vec3f {
[INFO] [stdout]    |                             ^ help: if this is intentional, prefix it with an underscore: `_v`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `p`
[INFO] [stdout]   --> src/texture.rs:19:37
[INFO] [stdout]    |
[INFO] [stdout] 19 |     fn value(&self, u: f64, v: f64, p: &Hit) -> Vec3f {
[INFO] [stdout]    |                                     ^ help: if this is intentional, prefix it with an underscore: `_p`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `p`
[INFO] [stdout]   --> src/texture.rs:49:37
[INFO] [stdout]    |
[INFO] [stdout] 49 |     fn value(&self, u: f64, v: f64, p: &Hit) -> Vec3f {
[INFO] [stdout]    |                                     ^ help: if this is intentional, prefix it with an underscore: `_p`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ray`
[INFO] [stdout]   --> src/main.rs:35:14
[INFO] [stdout]    |
[INFO] [stdout] 35 | fn color_sky(ray: &Ray) -> Vec3f {
[INFO] [stdout]    |              ^^^ help: if this is intentional, prefix it with an underscore: `_ray`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: floating-point types cannot be used in patterns
[INFO] [stdout]    --> src/main.rs:143:21
[INFO] [stdout]     |
[INFO] [stdout] 143 |                     0.0..=0.4 => {
[INFO] [stdout]     |                     ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #41620 <https://github.com/rust-lang/rust/issues/41620>
[INFO] [stdout]     = note: `#[warn(illegal_floating_point_literal_pattern)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: floating-point types cannot be used in patterns
[INFO] [stdout]    --> src/main.rs:143:27
[INFO] [stdout]     |
[INFO] [stdout] 143 |                     0.0..=0.4 => {
[INFO] [stdout]     |                           ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #41620 <https://github.com/rust-lang/rust/issues/41620>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: floating-point types cannot be used in patterns
[INFO] [stdout]    --> src/main.rs:154:21
[INFO] [stdout]     |
[INFO] [stdout] 154 |                     0.4..=0.8 => {
[INFO] [stdout]     |                     ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #41620 <https://github.com/rust-lang/rust/issues/41620>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: floating-point types cannot be used in patterns
[INFO] [stdout]    --> src/main.rs:154:27
[INFO] [stdout]     |
[INFO] [stdout] 154 |                     0.4..=0.8 => {
[INFO] [stdout]     |                           ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #41620 <https://github.com/rust-lang/rust/issues/41620>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 17 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 19.04s
[INFO] running `Command { std: "docker" "inspect" "df66ad45a1417f2d69cdf0fae01a4a8dbbe290eeaa90ddfd4fca9d049c72882e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "df66ad45a1417f2d69cdf0fae01a4a8dbbe290eeaa90ddfd4fca9d049c72882e", kill_on_drop: false }`
[INFO] [stdout] df66ad45a1417f2d69cdf0fae01a4a8dbbe290eeaa90ddfd4fca9d049c72882e
