[INFO] cloning repository https://github.com/Akshay-Srivatsan/basic-raytracer
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Akshay-Srivatsan/basic-raytracer" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAkshay-Srivatsan%2Fbasic-raytracer", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAkshay-Srivatsan%2Fbasic-raytracer'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c95b3d80004034508f8ecb14ecfe7d9c9eda76b6
[INFO] testing Akshay-Srivatsan/basic-raytracer against master#733b47ea4b1b86216f14ef56e49440c33933f230+rustflags=-Copt-level=3 for pr-138759
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAkshay-Srivatsan%2Fbasic-raytracer" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/Akshay-Srivatsan/basic-raytracer
[INFO] finished tweaking git repo https://github.com/Akshay-Srivatsan/basic-raytracer
[INFO] tweaked toml for git repo https://github.com/Akshay-Srivatsan/basic-raytracer written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Akshay-Srivatsan/basic-raytracer on toolchain 733b47ea4b1b86216f14ef56e49440c33933f230
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/Akshay-Srivatsan/basic-raytracer 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" "+733b47ea4b1b86216f14ef56e49440c33933f230" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5a87e976f7291e2effca499527b50bc2f7a3f2ce6263499e2a91a08983a0d3b9
[INFO] running `Command { std: "docker" "start" "-a" "5a87e976f7291e2effca499527b50bc2f7a3f2ce6263499e2a91a08983a0d3b9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5a87e976f7291e2effca499527b50bc2f7a3f2ce6263499e2a91a08983a0d3b9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5a87e976f7291e2effca499527b50bc2f7a3f2ce6263499e2a91a08983a0d3b9", kill_on_drop: false }`
[INFO] [stdout] 5a87e976f7291e2effca499527b50bc2f7a3f2ce6263499e2a91a08983a0d3b9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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 -Copt-level=3" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b5829516a2f61df3132bde00d3c7219f7eb9341958017b10340c8906240f3f16
[INFO] running `Command { std: "docker" "start" "-a" "b5829516a2f61df3132bde00d3c7219f7eb9341958017b10340c8906240f3f16", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.8
[INFO] [stderr]    Compiling num-integer v0.1.41
[INFO] [stderr]    Compiling num-iter v0.1.39
[INFO] [stderr]    Compiling byteorder v1.3.2
[INFO] [stderr]    Compiling bitflags v1.1.0
[INFO] [stderr]    Compiling inflate v0.3.4
[INFO] [stderr]    Compiling deflate v0.7.20
[INFO] [stderr]    Compiling png v0.11.0
[INFO] [stderr]    Compiling basic-raytracer v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:152:22
[INFO] [stdout]     |
[INFO] [stdout] 152 |     let shapes: Vec<&Shape> = vec![&sphere];
[INFO] [stdout]     |                      ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 152 |     let shapes: Vec<&dyn Shape> = vec![&sphere];
[INFO] [stdout]     |                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:183:46
[INFO] [stdout]     |
[INFO] [stdout] 183 |             let mut current_closest: Option<&Shape> = None;
[INFO] [stdout]     |                                              ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 183 |             let mut current_closest: Option<&dyn Shape> = None;
[INFO] [stdout]     |                                              +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `current_closest` is assigned to, but never used
[INFO] [stdout]    --> src/main.rs:183:21
[INFO] [stdout]     |
[INFO] [stdout] 183 |             let mut current_closest: Option<&Shape> = None;
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: consider using `_current_closest` instead
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `current_closest` is never read
[INFO] [stdout]    --> src/main.rs:190:25
[INFO] [stdout]     |
[INFO] [stdout] 190 |                         current_closest = Some(shape);
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `width` should have an upper case name
[INFO] [stdout]    --> src/main.rs:155:11
[INFO] [stdout]     |
[INFO] [stdout] 155 |     const width: u32 = 640;
[INFO] [stdout]     |           ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_upper_case_globals)]` on by default
[INFO] [stdout] help: convert the identifier to upper case
[INFO] [stdout]     |
[INFO] [stdout] 155 -     const width: u32 = 640;
[INFO] [stdout] 155 +     const WIDTH: u32 = 640;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `height` should have an upper case name
[INFO] [stdout]    --> src/main.rs:156:11
[INFO] [stdout]     |
[INFO] [stdout] 156 |     const height: u32 = 480;
[INFO] [stdout]     |           ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: convert the identifier to upper case
[INFO] [stdout]     |
[INFO] [stdout] 156 -     const height: u32 = 480;
[INFO] [stdout] 156 +     const HEIGHT: u32 = 480;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `array_size` should have an upper case name
[INFO] [stdout]    --> src/main.rs:157:11
[INFO] [stdout]     |
[INFO] [stdout] 157 |     const array_size: usize = (width * height * 4) as usize;
[INFO] [stdout]     |           ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: convert the identifier to upper case
[INFO] [stdout]     |
[INFO] [stdout] 157 -     const array_size: usize = (width * height * 4) as usize;
[INFO] [stdout] 157 +     const ARRAY_SIZE: usize = (width * height * 4) as usize;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.12s
[INFO] running `Command { std: "docker" "inspect" "b5829516a2f61df3132bde00d3c7219f7eb9341958017b10340c8906240f3f16", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b5829516a2f61df3132bde00d3c7219f7eb9341958017b10340c8906240f3f16", kill_on_drop: false }`
[INFO] [stdout] b5829516a2f61df3132bde00d3c7219f7eb9341958017b10340c8906240f3f16
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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 -Copt-level=3" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5eb22fc6d0b361b9f013b2ad10cd99fa2ce78dae236922bdb1e816f7adce2267
[INFO] running `Command { std: "docker" "start" "-a" "5eb22fc6d0b361b9f013b2ad10cd99fa2ce78dae236922bdb1e816f7adce2267", kill_on_drop: false }`
[INFO] [stderr]    Compiling basic-raytracer v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:152:22
[INFO] [stdout]     |
[INFO] [stdout] 152 |     let shapes: Vec<&Shape> = vec![&sphere];
[INFO] [stdout]     |                      ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 152 |     let shapes: Vec<&dyn Shape> = vec![&sphere];
[INFO] [stdout]     |                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:183:46
[INFO] [stdout]     |
[INFO] [stdout] 183 |             let mut current_closest: Option<&Shape> = None;
[INFO] [stdout]     |                                              ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 183 |             let mut current_closest: Option<&dyn Shape> = None;
[INFO] [stdout]     |                                              +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `current_closest` is assigned to, but never used
[INFO] [stdout]    --> src/main.rs:183:21
[INFO] [stdout]     |
[INFO] [stdout] 183 |             let mut current_closest: Option<&Shape> = None;
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: consider using `_current_closest` instead
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `current_closest` is never read
[INFO] [stdout]    --> src/main.rs:190:25
[INFO] [stdout]     |
[INFO] [stdout] 190 |                         current_closest = Some(shape);
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `width` should have an upper case name
[INFO] [stdout]    --> src/main.rs:155:11
[INFO] [stdout]     |
[INFO] [stdout] 155 |     const width: u32 = 640;
[INFO] [stdout]     |           ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_upper_case_globals)]` on by default
[INFO] [stdout] help: convert the identifier to upper case
[INFO] [stdout]     |
[INFO] [stdout] 155 -     const width: u32 = 640;
[INFO] [stdout] 155 +     const WIDTH: u32 = 640;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `height` should have an upper case name
[INFO] [stdout]    --> src/main.rs:156:11
[INFO] [stdout]     |
[INFO] [stdout] 156 |     const height: u32 = 480;
[INFO] [stdout]     |           ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: convert the identifier to upper case
[INFO] [stdout]     |
[INFO] [stdout] 156 -     const height: u32 = 480;
[INFO] [stdout] 156 +     const HEIGHT: u32 = 480;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `array_size` should have an upper case name
[INFO] [stdout]    --> src/main.rs:157:11
[INFO] [stdout]     |
[INFO] [stdout] 157 |     const array_size: usize = (width * height * 4) as usize;
[INFO] [stdout]     |           ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: convert the identifier to upper case
[INFO] [stdout]     |
[INFO] [stdout] 157 -     const array_size: usize = (width * height * 4) as usize;
[INFO] [stdout] 157 +     const ARRAY_SIZE: usize = (width * height * 4) as usize;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.36s
[INFO] running `Command { std: "docker" "inspect" "5eb22fc6d0b361b9f013b2ad10cd99fa2ce78dae236922bdb1e816f7adce2267", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5eb22fc6d0b361b9f013b2ad10cd99fa2ce78dae236922bdb1e816f7adce2267", kill_on_drop: false }`
[INFO] [stdout] 5eb22fc6d0b361b9f013b2ad10cd99fa2ce78dae236922bdb1e816f7adce2267
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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 -Copt-level=3" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 50a935d0c420fc68ffad2e7273ad44aa870783c1b9612fc2693b0e2347370919
[INFO] running `Command { std: "docker" "start" "-a" "50a935d0c420fc68ffad2e7273ad44aa870783c1b9612fc2693b0e2347370919", kill_on_drop: false }`
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:152:22
[INFO] [stderr]     |
[INFO] [stderr] 152 |     let shapes: Vec<&Shape> = vec![&sphere];
[INFO] [stderr]     |                      ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 152 |     let shapes: Vec<&dyn Shape> = vec![&sphere];
[INFO] [stderr]     |                      +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:183:46
[INFO] [stderr]     |
[INFO] [stderr] 183 |             let mut current_closest: Option<&Shape> = None;
[INFO] [stderr]     |                                              ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 183 |             let mut current_closest: Option<&dyn Shape> = None;
[INFO] [stderr]     |                                              +++
[INFO] [stderr] 
[INFO] [stderr] warning: variable `current_closest` is assigned to, but never used
[INFO] [stderr]    --> src/main.rs:183:21
[INFO] [stderr]     |
[INFO] [stderr] 183 |             let mut current_closest: Option<&Shape> = None;
[INFO] [stderr]     |                     ^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: consider using `_current_closest` instead
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `current_closest` is never read
[INFO] [stderr]    --> src/main.rs:190:25
[INFO] [stderr]     |
[INFO] [stderr] 190 |                         current_closest = Some(shape);
[INFO] [stderr]     |                         ^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: constant `width` should have an upper case name
[INFO] [stderr]    --> src/main.rs:155:11
[INFO] [stderr]     |
[INFO] [stderr] 155 |     const width: u32 = 640;
[INFO] [stderr]     |           ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(non_upper_case_globals)]` on by default
[INFO] [stderr] help: convert the identifier to upper case
[INFO] [stderr]     |
[INFO] [stderr] 155 -     const width: u32 = 640;
[INFO] [stderr] 155 +     const WIDTH: u32 = 640;
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: constant `height` should have an upper case name
[INFO] [stderr]    --> src/main.rs:156:11
[INFO] [stderr]     |
[INFO] [stderr] 156 |     const height: u32 = 480;
[INFO] [stderr]     |           ^^^^^^
[INFO] [stderr]     |
[INFO] [stderr] help: convert the identifier to upper case
[INFO] [stderr]     |
[INFO] [stderr] 156 -     const height: u32 = 480;
[INFO] [stderr] 156 +     const HEIGHT: u32 = 480;
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: constant `array_size` should have an upper case name
[INFO] [stderr]    --> src/main.rs:157:11
[INFO] [stderr]     |
[INFO] [stderr] 157 |     const array_size: usize = (width * height * 4) as usize;
[INFO] [stderr]     |           ^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr] help: convert the identifier to upper case
[INFO] [stderr]     |
[INFO] [stderr] 157 -     const array_size: usize = (width * height * 4) as usize;
[INFO] [stderr] 157 +     const ARRAY_SIZE: usize = (width * height * 4) as usize;
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: `basic-raytracer` (bin "basic-raytracer" test) generated 7 warnings (run `cargo fix --bin "basic-raytracer" --tests` to apply 5 suggestions)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/basic_raytracer-ce17c9ba3de3a074)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "50a935d0c420fc68ffad2e7273ad44aa870783c1b9612fc2693b0e2347370919", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "50a935d0c420fc68ffad2e7273ad44aa870783c1b9612fc2693b0e2347370919", kill_on_drop: false }`
[INFO] [stdout] 50a935d0c420fc68ffad2e7273ad44aa870783c1b9612fc2693b0e2347370919
