[INFO] cloning repository https://github.com/Nbeleski/rust_raytracing [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Nbeleski/rust_raytracing" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNbeleski%2Frust_raytracing", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNbeleski%2Frust_raytracing'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] a9f701ee46e467fcb3c3c3ce34cb56fcd5b26883 [INFO] checking Nbeleski/rust_raytracing against master#5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f for pr-87248 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNbeleski%2Frust_raytracing" "/workspace/builds/worker-1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/Nbeleski/rust_raytracing on toolchain 5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/Nbeleski/rust_raytracing [INFO] finished tweaking git repo https://github.com/Nbeleski/rust_raytracing [INFO] tweaked toml for git repo https://github.com/Nbeleski/rust_raytracing written to /workspace/builds/worker-1/source/Cargo.toml [INFO] crate git repo https://github.com/Nbeleski/rust_raytracing already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "fetch" "--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-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 2c6d11e990a6e98a21db09b5f1ba67f7bea0a3320c9cd772a78be043a8352b34 [INFO] running `Command { std: "docker" "start" "-a" "2c6d11e990a6e98a21db09b5f1ba67f7bea0a3320c9cd772a78be043a8352b34", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "2c6d11e990a6e98a21db09b5f1ba67f7bea0a3320c9cd772a78be043a8352b34", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "2c6d11e990a6e98a21db09b5f1ba67f7bea0a3320c9cd772a78be043a8352b34", kill_on_drop: false }` [INFO] [stdout] 2c6d11e990a6e98a21db09b5f1ba67f7bea0a3320c9cd772a78be043a8352b34 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 2632c09015da7ef99aaabd23f1ab1c711bbb8267665f60d62d2317964e8fd876 [INFO] running `Command { std: "docker" "start" "-a" "2632c09015da7ef99aaabd23f1ab1c711bbb8267665f60d62d2317964e8fd876", kill_on_drop: false }` [INFO] [stderr] Checking rand_core v0.4.0 [INFO] [stderr] Checking rgb v0.8.13 [INFO] [stderr] Checking rand_core v0.3.1 [INFO] [stderr] Checking rand_pcg v0.1.2 [INFO] [stderr] Checking rand_os v0.1.3 [INFO] [stderr] Checking rand_jitter v0.1.4 [INFO] [stderr] Checking rand_isaac v0.1.1 [INFO] [stderr] Checking rand_hc v0.1.0 [INFO] [stderr] Checking rand_chacha v0.1.1 [INFO] [stderr] Checking rand_xorshift v0.1.1 [INFO] [stderr] Checking lodepng v2.4.2 [INFO] [stderr] Checking rand v0.6.5 [INFO] [stderr] Checking ray v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `Scatter` [INFO] [stdout] --> src/hitable.rs:3:23 [INFO] [stdout] | [INFO] [stdout] 3 | use crate::material::{Scatter, Material}; [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/hitable.rs:13:25 [INFO] [stdout] | [INFO] [stdout] 13 | pub material: &'obj Material, [INFO] [stdout] | ^^^^^^^^ help: use `dyn`: `dyn Material` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [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 issue #80165 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/hitable.rs:13:25 [INFO] [stdout] | [INFO] [stdout] 13 | pub material: &'obj Material, [INFO] [stdout] | ^^^^^^^^ help: use `dyn`: `dyn Material` [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 issue #80165 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/hitable.rs:25:23 [INFO] [stdout] | [INFO] [stdout] 25 | pub material: Box [INFO] [stdout] | ^^^^^^^^ help: use `dyn`: `dyn Material` [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 issue #80165 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/hitable.rs:76:26 [INFO] [stdout] | [INFO] [stdout] 76 | impl Hitable for Vec> { [INFO] [stdout] | ^^^^^^^ help: use `dyn`: `dyn Hitable` [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 issue #80165 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `rand::Rng` [INFO] [stdout] --> src/camera.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use rand::Rng; [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::f32::consts::PI` [INFO] [stdout] --> src/camera.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 4 | use std::f32::consts::PI; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `rand::random` [INFO] [stdout] --> src/material.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use rand::random; [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `HitRecord` [INFO] [stdout] --> src/main.rs:11:15 [INFO] [stdout] | [INFO] [stdout] 11 | use hitable::{HitRecord, Hitable, Sphere, random_in_unit_sphere}; [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/main.rs:15:34 [INFO] [stdout] | [INFO] [stdout] 15 | fn color(r: Ray, world: &Vec>, mut depth: i32) -> Vec3 { [INFO] [stdout] | ^^^^^^^ help: use `dyn`: `dyn Hitable` [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 issue #80165 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around `match` scrutinee expression [INFO] [stdout] --> src/main.rs:16:10 [INFO] [stdout] | [INFO] [stdout] 16 | match(world.hit(r, 0.00001, 10000.0)) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_parens)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/main.rs:51:24 [INFO] [stdout] | [INFO] [stdout] 51 | let world: Vec> = spheres.into_iter().map(|s| Box::new(s) as Box).collect(); [INFO] [stdout] | ^^^^^^^ help: use `dyn`: `dyn Hitable` [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 issue #80165 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/main.rs:51:83 [INFO] [stdout] | [INFO] [stdout] 51 | let world: Vec> = spheres.into_iter().map(|s| Box::new(s) as Box).collect(); [INFO] [stdout] | ^^^^^^^ help: use `dyn`: `dyn Hitable` [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 issue #80165 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `Scatter` [INFO] [stdout] --> src/hitable.rs:3:23 [INFO] [stdout] | [INFO] [stdout] 3 | use crate::material::{Scatter, Material}; [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/hitable.rs:13:25 [INFO] [stdout] | [INFO] [stdout] 13 | pub material: &'obj Material, [INFO] [stdout] | ^^^^^^^^ help: use `dyn`: `dyn Material` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [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 issue #80165 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/hitable.rs:13:25 [INFO] [stdout] | [INFO] [stdout] 13 | pub material: &'obj Material, [INFO] [stdout] | ^^^^^^^^ help: use `dyn`: `dyn Material` [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 issue #80165 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/hitable.rs:25:23 [INFO] [stdout] | [INFO] [stdout] 25 | pub material: Box [INFO] [stdout] | ^^^^^^^^ help: use `dyn`: `dyn Material` [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 issue #80165 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/hitable.rs:76:26 [INFO] [stdout] | [INFO] [stdout] 76 | impl Hitable for Vec> { [INFO] [stdout] | ^^^^^^^ help: use `dyn`: `dyn Hitable` [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 issue #80165 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `rand::Rng` [INFO] [stdout] --> src/camera.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use rand::Rng; [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::f32::consts::PI` [INFO] [stdout] --> src/camera.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 4 | use std::f32::consts::PI; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `rand::random` [INFO] [stdout] --> src/material.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use rand::random; [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `HitRecord` [INFO] [stdout] --> src/main.rs:11:15 [INFO] [stdout] | [INFO] [stdout] 11 | use hitable::{HitRecord, Hitable, Sphere, random_in_unit_sphere}; [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/main.rs:15:34 [INFO] [stdout] | [INFO] [stdout] 15 | fn color(r: Ray, world: &Vec>, mut depth: i32) -> Vec3 { [INFO] [stdout] | ^^^^^^^ help: use `dyn`: `dyn Hitable` [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 issue #80165 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around `match` scrutinee expression [INFO] [stdout] --> src/main.rs:16:10 [INFO] [stdout] | [INFO] [stdout] 16 | match(world.hit(r, 0.00001, 10000.0)) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_parens)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/main.rs:51:24 [INFO] [stdout] | [INFO] [stdout] 51 | let world: Vec> = spheres.into_iter().map(|s| Box::new(s) as Box).collect(); [INFO] [stdout] | ^^^^^^^ help: use `dyn`: `dyn Hitable` [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 issue #80165 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/main.rs:51:83 [INFO] [stdout] | [INFO] [stdout] 51 | let world: Vec> = spheres.into_iter().map(|s| Box::new(s) as Box).collect(); [INFO] [stdout] | ^^^^^^^ help: use `dyn`: `dyn Hitable` [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 issue #80165 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `lower_left_corner` [INFO] [stdout] --> src/main.rs:34:9 [INFO] [stdout] | [INFO] [stdout] 34 | let lower_left_corner: Vec3 = Vec3(-2.0, -1.0, -1.0); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_lower_left_corner` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `horizontal` [INFO] [stdout] --> src/main.rs:35:9 [INFO] [stdout] | [INFO] [stdout] 35 | let horizontal: Vec3 = Vec3(4.0, 0.0, 0.0); [INFO] [stdout] | ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_horizontal` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `vertical` [INFO] [stdout] --> src/main.rs:36:9 [INFO] [stdout] | [INFO] [stdout] 36 | let vertical: Vec3 = Vec3(0.0, 2.0, 0.0); [INFO] [stdout] | ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_vertical` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `origin` [INFO] [stdout] --> src/main.rs:37:9 [INFO] [stdout] | [INFO] [stdout] 37 | let origin: Vec3 = Vec3(0.0, 0.0, 0.0); [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_origin` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `s` [INFO] [stdout] --> src/main.rs:59:17 [INFO] [stdout] | [INFO] [stdout] 59 | for s in 0..ns { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_s` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:15:45 [INFO] [stdout] | [INFO] [stdout] 15 | fn color(r: Ray, world: &Vec>, mut depth: i32) -> Vec3 { [INFO] [stdout] | ----^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:43:9 [INFO] [stdout] | [INFO] [stdout] 43 | let mut spheres: Vec = vec![ [INFO] [stdout] | ----^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `lower_left_corner` [INFO] [stdout] --> src/main.rs:34:9 [INFO] [stdout] | [INFO] [stdout] 34 | let lower_left_corner: Vec3 = Vec3(-2.0, -1.0, -1.0); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_lower_left_corner` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `horizontal` [INFO] [stdout] --> src/main.rs:35:9 [INFO] [stdout] | [INFO] [stdout] 35 | let horizontal: Vec3 = Vec3(4.0, 0.0, 0.0); [INFO] [stdout] | ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_horizontal` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `vertical` [INFO] [stdout] --> src/main.rs:36:9 [INFO] [stdout] | [INFO] [stdout] 36 | let vertical: Vec3 = Vec3(0.0, 2.0, 0.0); [INFO] [stdout] | ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_vertical` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `origin` [INFO] [stdout] --> src/main.rs:37:9 [INFO] [stdout] | [INFO] [stdout] 37 | let origin: Vec3 = Vec3(0.0, 0.0, 0.0); [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_origin` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `s` [INFO] [stdout] --> src/main.rs:59:17 [INFO] [stdout] | [INFO] [stdout] 59 | for s in 0..ns { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_s` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:15:45 [INFO] [stdout] | [INFO] [stdout] 15 | fn color(r: Ray, world: &Vec>, mut depth: i32) -> Vec3 { [INFO] [stdout] | ----^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:43:9 [INFO] [stdout] | [INFO] [stdout] 43 | let mut spheres: Vec = vec![ [INFO] [stdout] | ----^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 20 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 20 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 2.54s [INFO] running `Command { std: "docker" "inspect" "2632c09015da7ef99aaabd23f1ab1c711bbb8267665f60d62d2317964e8fd876", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "2632c09015da7ef99aaabd23f1ab1c711bbb8267665f60d62d2317964e8fd876", kill_on_drop: false }` [INFO] [stdout] 2632c09015da7ef99aaabd23f1ab1c711bbb8267665f60d62d2317964e8fd876