[INFO] cloning repository https://github.com/vongaisberg/monte-carlo-raytracer [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/vongaisberg/monte-carlo-raytracer" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvongaisberg%2Fmonte-carlo-raytracer", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvongaisberg%2Fmonte-carlo-raytracer'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 398caa781fe6c9ef85e4dd9b006db1687384b2e7 [INFO] checking vongaisberg/monte-carlo-raytracer against try#a8425075041d4b9af9bf32e2a267dfb9db2cfffb for pr-100043-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvongaisberg%2Fmonte-carlo-raytracer" "/workspace/builds/worker-4/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/vongaisberg/monte-carlo-raytracer on toolchain a8425075041d4b9af9bf32e2a267dfb9db2cfffb [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a8425075041d4b9af9bf32e2a267dfb9db2cfffb" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/vongaisberg/monte-carlo-raytracer [INFO] finished tweaking git repo https://github.com/vongaisberg/monte-carlo-raytracer [INFO] tweaked toml for git repo https://github.com/vongaisberg/monte-carlo-raytracer written to /workspace/builds/worker-4/source/Cargo.toml [INFO] crate git repo https://github.com/vongaisberg/monte-carlo-raytracer already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a8425075041d4b9af9bf32e2a267dfb9db2cfffb" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "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" "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@sha256:824c28ce115f6b999260af6986f3384c158e782489540e41c0b698ca1d9fd927" "/opt/rustwide/cargo-home/bin/cargo" "+a8425075041d4b9af9bf32e2a267dfb9db2cfffb" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] d79377d163413362664a1702635845847240f56424785b1af6e697edeb384c46 [INFO] running `Command { std: "docker" "start" "-a" "d79377d163413362664a1702635845847240f56424785b1af6e697edeb384c46", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "d79377d163413362664a1702635845847240f56424785b1af6e697edeb384c46", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d79377d163413362664a1702635845847240f56424785b1af6e697edeb384c46", kill_on_drop: false }` [INFO] [stdout] d79377d163413362664a1702635845847240f56424785b1af6e697edeb384c46 [INFO] running `Command { std: "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" "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@sha256:824c28ce115f6b999260af6986f3384c158e782489540e41c0b698ca1d9fd927" "/opt/rustwide/cargo-home/bin/cargo" "+a8425075041d4b9af9bf32e2a267dfb9db2cfffb" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] e140ed4f855ea108f46eda662f0f29f75323d641246ef8f06e6242dcced9056b [INFO] running `Command { std: "docker" "start" "-a" "e140ed4f855ea108f46eda662f0f29f75323d641246ef8f06e6242dcced9056b", kill_on_drop: false }` [INFO] [stderr] Compiling autocfg v1.0.0 [INFO] [stderr] Checking cfg-if v0.1.10 [INFO] [stderr] Checking lazy_static v1.4.0 [INFO] [stderr] Compiling libc v0.2.68 [INFO] [stderr] Checking scopeguard v1.1.0 [INFO] [stderr] Compiling maybe-uninit v2.0.0 [INFO] [stderr] Compiling byteorder v1.3.4 [INFO] [stderr] Checking adler32 v1.0.4 [INFO] [stderr] Checking cfg-if v1.0.0 [INFO] [stderr] Compiling getrandom v0.1.14 [INFO] [stderr] Compiling const_fn v0.4.3 [INFO] [stderr] Compiling rayon-core v1.7.0 [INFO] [stderr] Compiling bitflags v1.2.1 [INFO] [stderr] Compiling crc32fast v1.2.0 [INFO] [stderr] Checking lzw v0.10.0 [INFO] [stderr] Checking either v1.5.3 [INFO] [stderr] Checking color_quant v1.0.1 [INFO] [stderr] Checking ppv-lite86 v0.2.6 [INFO] [stderr] Checking scoped_threadpool v0.1.9 [INFO] [stderr] Checking bytemuck v1.2.0 [INFO] [stderr] Checking atomic-counter v1.0.1 [INFO] [stderr] Checking miniz_oxide v0.3.6 [INFO] [stderr] Checking inflate v0.4.5 [INFO] [stderr] Checking gif v0.10.3 [INFO] [stderr] Compiling num-traits v0.2.12 [INFO] [stderr] Compiling crossbeam-utils v0.7.2 [INFO] [stderr] Compiling memoffset v0.5.4 [INFO] [stderr] Compiling num-integer v0.1.43 [INFO] [stderr] Compiling crossbeam-epoch v0.8.2 [INFO] [stderr] Compiling crossbeam-utils v0.8.1 [INFO] [stderr] Compiling memoffset v0.6.1 [INFO] [stderr] Compiling num-iter v0.1.41 [INFO] [stderr] Compiling num-bigint v0.3.0 [INFO] [stderr] Compiling num-rational v0.2.4 [INFO] [stderr] Compiling num-rational v0.3.0 [INFO] [stderr] Checking deflate v0.8.3 [INFO] [stderr] Checking tiff v0.4.0 [INFO] [stderr] Checking png v0.16.1 [INFO] [stderr] Checking crossbeam-queue v0.2.1 [INFO] [stderr] Checking num_cpus v1.12.0 [INFO] [stderr] Checking crossbeam-epoch v0.9.1 [INFO] [stderr] Checking crossbeam-queue v0.3.1 [INFO] [stderr] Checking crossbeam-channel v0.5.0 [INFO] [stderr] Checking crossbeam-deque v0.7.3 [INFO] [stderr] Checking threadpool v1.7.1 [INFO] [stderr] Checking rand_core v0.5.1 [INFO] [stderr] Checking num-complex v0.3.0 [INFO] [stderr] Checking crossbeam-deque v0.8.0 [INFO] [stderr] Checking rand_chacha v0.2.2 [INFO] [stderr] Checking rand v0.7.3 [INFO] [stderr] Checking crossbeam v0.8.0 [INFO] [stderr] Checking rayon v1.3.0 [INFO] [stderr] Checking num v0.3.0 [INFO] [stderr] Checking jpeg-decoder v0.1.18 [INFO] [stderr] Checking image v0.23.2 [INFO] [stderr] Checking raytracer v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `std::f64::consts::PI` [INFO] [stdout] --> src/primitives/vec.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 3 | use std::f64::consts::PI; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::f64::consts::PI` [INFO] [stdout] --> src/primitives/vec.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 3 | use std::f64::consts::PI; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `crate::cameras::Camera` [INFO] [stdout] --> src/renderer/combined_renderer.rs:5:5 [INFO] [stdout] | [INFO] [stdout] 5 | use crate::cameras::Camera; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `crate::materials::Material` [INFO] [stdout] --> src/objects/scene.rs:7:5 [INFO] [stdout] | [INFO] [stdout] 7 | use crate::materials::Material; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `crate::objects::traits::Intersect` [INFO] [stdout] --> src/objects/scene.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use crate::objects::traits::Intersect; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `rayon::prelude` [INFO] [stdout] --> src/renderer/raw.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 3 | use rayon::prelude::*; [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `crate::cameras::Camera` [INFO] [stdout] --> src/renderer/fixed_samples.rs:5:5 [INFO] [stdout] | [INFO] [stdout] 5 | use crate::cameras::Camera; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `crate::cameras::Camera` [INFO] [stdout] --> src/renderer/std_div_renderer.rs:5:5 [INFO] [stdout] | [INFO] [stdout] 5 | use crate::cameras::Camera; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `eta` [INFO] [stdout] --> src/materials/phong_with_refraction.rs:92:14 [INFO] [stdout] | [INFO] [stdout] 92 | let (eta, cosI, normal) = if cosI < 0. { [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_eta` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `cosI` [INFO] [stdout] --> src/materials/phong_with_refraction.rs:92:19 [INFO] [stdout] | [INFO] [stdout] 92 | let (eta, cosI, normal) = if cosI < 0. { [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_cosI` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `normal` [INFO] [stdout] --> src/materials/phong_with_refraction.rs:92:25 [INFO] [stdout] | [INFO] [stdout] 92 | let (eta, cosI, normal) = if cosI < 0. { [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_normal` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `crate::cameras::Camera` [INFO] [stdout] --> src/renderer/combined_renderer.rs:5:5 [INFO] [stdout] | [INFO] [stdout] 5 | use crate::cameras::Camera; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `crate::materials::Material` [INFO] [stdout] --> src/objects/scene.rs:7:5 [INFO] [stdout] | [INFO] [stdout] 7 | use crate::materials::Material; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `crate::objects::traits::Intersect` [INFO] [stdout] --> src/objects/scene.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use crate::objects::traits::Intersect; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `rayon::prelude` [INFO] [stdout] --> src/renderer/raw.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 3 | use rayon::prelude::*; [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `crate::cameras::Camera` [INFO] [stdout] --> src/renderer/fixed_samples.rs:5:5 [INFO] [stdout] | [INFO] [stdout] 5 | use crate::cameras::Camera; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `crate::cameras::Camera` [INFO] [stdout] --> src/renderer/std_div_renderer.rs:5:5 [INFO] [stdout] | [INFO] [stdout] 5 | use crate::cameras::Camera; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `cosI` should have a snake case name [INFO] [stdout] --> src/materials/phong_with_refraction.rs:41:13 [INFO] [stdout] | [INFO] [stdout] 41 | let cosI = clamp(intersection.normal.dot(&ray.direction), -1., 1.); [INFO] [stdout] | ^^^^ help: convert the identifier to snake case: `cos_i` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_snake_case)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `cosI` should have a snake case name [INFO] [stdout] --> src/materials/phong_with_refraction.rs:43:19 [INFO] [stdout] | [INFO] [stdout] 43 | let (eta, cosI, normal) = if cosI < 0. { [INFO] [stdout] | ^^^^ help: convert the identifier to snake case: `cos_i` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `Rs` should have a snake case name [INFO] [stdout] --> src/materials/phong_with_refraction.rs:77:17 [INFO] [stdout] | [INFO] [stdout] 77 | let Rs = ((etat * cosi) - (etai * cost)) / ((etat * cosi) + (etai * cost)); [INFO] [stdout] | ^^ help: convert the identifier to snake case: `rs` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `Rp` should have a snake case name [INFO] [stdout] --> src/materials/phong_with_refraction.rs:78:17 [INFO] [stdout] | [INFO] [stdout] 78 | let Rp = ((etai * cosi) - (etat * cost)) / ((etai * cosi) + (etat * cost)); [INFO] [stdout] | ^^ help: convert the identifier to snake case: `rp` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `cosI` should have a snake case name [INFO] [stdout] --> src/materials/phong_with_refraction.rs:90:13 [INFO] [stdout] | [INFO] [stdout] 90 | let cosI = clamp(intersection.normal.dot(&ray.direction), -1., 1.); [INFO] [stdout] | ^^^^ help: convert the identifier to snake case: `cos_i` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `cosI` should have a snake case name [INFO] [stdout] --> src/materials/phong_with_refraction.rs:92:19 [INFO] [stdout] | [INFO] [stdout] 92 | let (eta, cosI, normal) = if cosI < 0. { [INFO] [stdout] | ^^^^ help: convert the identifier to snake case: `cos_i` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `eta` [INFO] [stdout] --> src/materials/phong_with_refraction.rs:92:14 [INFO] [stdout] | [INFO] [stdout] 92 | let (eta, cosI, normal) = if cosI < 0. { [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_eta` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `cosI` [INFO] [stdout] --> src/materials/phong_with_refraction.rs:92:19 [INFO] [stdout] | [INFO] [stdout] 92 | let (eta, cosI, normal) = if cosI < 0. { [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_cosI` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `normal` [INFO] [stdout] --> src/materials/phong_with_refraction.rs:92:25 [INFO] [stdout] | [INFO] [stdout] 92 | let (eta, cosI, normal) = if cosI < 0. { [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_normal` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 16 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `cosI` should have a snake case name [INFO] [stdout] --> src/materials/phong_with_refraction.rs:41:13 [INFO] [stdout] | [INFO] [stdout] 41 | let cosI = clamp(intersection.normal.dot(&ray.direction), -1., 1.); [INFO] [stdout] | ^^^^ help: convert the identifier to snake case: `cos_i` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_snake_case)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `cosI` should have a snake case name [INFO] [stdout] --> src/materials/phong_with_refraction.rs:43:19 [INFO] [stdout] | [INFO] [stdout] 43 | let (eta, cosI, normal) = if cosI < 0. { [INFO] [stdout] | ^^^^ help: convert the identifier to snake case: `cos_i` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `Rs` should have a snake case name [INFO] [stdout] --> src/materials/phong_with_refraction.rs:77:17 [INFO] [stdout] | [INFO] [stdout] 77 | let Rs = ((etat * cosi) - (etai * cost)) / ((etat * cosi) + (etai * cost)); [INFO] [stdout] | ^^ help: convert the identifier to snake case: `rs` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `Rp` should have a snake case name [INFO] [stdout] --> src/materials/phong_with_refraction.rs:78:17 [INFO] [stdout] | [INFO] [stdout] 78 | let Rp = ((etai * cosi) - (etat * cost)) / ((etai * cosi) + (etat * cost)); [INFO] [stdout] | ^^ help: convert the identifier to snake case: `rp` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `cosI` should have a snake case name [INFO] [stdout] --> src/materials/phong_with_refraction.rs:90:13 [INFO] [stdout] | [INFO] [stdout] 90 | let cosI = clamp(intersection.normal.dot(&ray.direction), -1., 1.); [INFO] [stdout] | ^^^^ help: convert the identifier to snake case: `cos_i` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `cosI` should have a snake case name [INFO] [stdout] --> src/materials/phong_with_refraction.rs:92:19 [INFO] [stdout] | [INFO] [stdout] 92 | let (eta, cosI, normal) = if cosI < 0. { [INFO] [stdout] | ^^^^ help: convert the identifier to snake case: `cos_i` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `raytracer::cameras::pinhole::Pinhole` [INFO] [stdout] --> src/main.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 4 | use raytracer::cameras::pinhole::Pinhole; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `raytracer::cameras::pinhole::Pinhole` [INFO] [stdout] --> src/main.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 4 | use raytracer::cameras::pinhole::Pinhole; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 16 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `material` [INFO] [stdout] --> src/main.rs:48:13 [INFO] [stdout] | [INFO] [stdout] 48 | let material = PseudoPhongRefraction::new( [INFO] [stdout] | ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_material` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `material` [INFO] [stdout] --> src/main.rs:48:13 [INFO] [stdout] | [INFO] [stdout] 48 | let material = PseudoPhongRefraction::new( [INFO] [stdout] | ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_material` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 15.77s [INFO] running `Command { std: "docker" "inspect" "e140ed4f855ea108f46eda662f0f29f75323d641246ef8f06e6242dcced9056b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e140ed4f855ea108f46eda662f0f29f75323d641246ef8f06e6242dcced9056b", kill_on_drop: false }` [INFO] [stdout] e140ed4f855ea108f46eda662f0f29f75323d641246ef8f06e6242dcced9056b