[INFO] cloning repository https://github.com/kylestach/rust-trace [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kylestach/rust-trace" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkylestach%2Frust-trace", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkylestach%2Frust-trace'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 5be1edd86d2183555c210a2a2b0f9c4ae7bf98dd [INFO] testing kylestach/rust-trace against try#722e1797249a965b6335aebd65d777f917e498f1 for pr-91031 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkylestach%2Frust-trace" "/workspace/builds/worker-14/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-14/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/kylestach/rust-trace on toolchain 722e1797249a965b6335aebd65d777f917e498f1 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/kylestach/rust-trace [INFO] finished tweaking git repo https://github.com/kylestach/rust-trace [INFO] tweaked toml for git repo https://github.com/kylestach/rust-trace written to /workspace/builds/worker-14/source/Cargo.toml [INFO] crate git repo https://github.com/kylestach/rust-trace already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded gif v0.9.0 [INFO] [stderr] Downloaded rayon v0.6.0 [INFO] [stderr] Downloaded num_cpus v1.2.0 [INFO] [stderr] Downloaded nalgebra v0.10.1 [INFO] [stderr] Downloaded png v0.5.2 [INFO] [stderr] Downloaded miniz-sys v0.1.7 [INFO] [stderr] Downloaded flate2 v0.2.14 [INFO] [stderr] Downloaded image v0.10.4 [INFO] [stderr] Downloaded jpeg-decoder v0.1.10 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 09ac6c4ae36f66284d59e300e93b6647d8895d16e6026c025a6f8f1db0178c99 [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" "09ac6c4ae36f66284d59e300e93b6647d8895d16e6026c025a6f8f1db0178c99", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "09ac6c4ae36f66284d59e300e93b6647d8895d16e6026c025a6f8f1db0178c99", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "09ac6c4ae36f66284d59e300e93b6647d8895d16e6026c025a6f8f1db0178c99", kill_on_drop: false }` [INFO] [stdout] 09ac6c4ae36f66284d59e300e93b6647d8895d16e6026c025a6f8f1db0178c99 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] e2c2b1689f0a8796db96c2bcfb36b4ca4db8a0062541ae7a7c86ef04e012df31 [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" "e2c2b1689f0a8796db96c2bcfb36b4ca4db8a0062541ae7a7c86ef04e012df31", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.18 [INFO] [stderr] Compiling gcc v0.3.41 [INFO] [stderr] Compiling inflate v0.1.1 [INFO] [stderr] Compiling color_quant v1.0.0 [INFO] [stderr] Compiling lzw v0.10.0 [INFO] [stderr] Compiling scoped_threadpool v0.1.7 [INFO] [stderr] Compiling num-integer v0.1.32 [INFO] [stderr] Compiling num-complex v0.1.35 [INFO] [stderr] Compiling gif v0.9.0 [INFO] [stderr] Compiling num-iter v0.1.32 [INFO] [stderr] Compiling rand v0.3.15 [INFO] [stderr] Compiling num_cpus v1.2.0 [INFO] [stderr] Compiling miniz-sys v0.1.7 [INFO] [stderr] Compiling num-bigint v0.1.35 [INFO] [stderr] Compiling deque v0.3.1 [INFO] [stderr] Compiling rayon v0.6.0 [INFO] [stderr] Compiling num-rational v0.1.35 [INFO] [stderr] Compiling flate2 v0.2.14 [INFO] [stderr] Compiling num v0.1.36 [INFO] [stderr] Compiling enum_primitive v0.1.0 [INFO] [stderr] Compiling nalgebra v0.10.1 [INFO] [stderr] Compiling jpeg-decoder v0.1.10 [INFO] [stderr] Compiling png v0.5.2 [INFO] [stderr] Compiling image v0.10.4 [INFO] [stderr] Compiling raytracingv2 v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/raytracing/trace.rs:13:42 [INFO] [stdout] | [INFO] [stdout] 13 | fn material<'a>(&'a self) -> &'a Box; [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 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/raytracing/trace.rs:18:21 [INFO] [stdout] | [INFO] [stdout] 18 | object: &'a Box, [INFO] [stdout] | ^^^^^ help: use `dyn`: `dyn Trace` [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/raytracing/scene.rs:10:26 [INFO] [stdout] | [INFO] [stdout] 10 | pub objects: Vec>, [INFO] [stdout] | ^^^^^ help: use `dyn`: `dyn Trace` [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `Div` [INFO] [stdout] --> src/raytracing/color.rs:2:31 [INFO] [stdout] | [INFO] [stdout] 2 | use std::ops::{Add, Sub, Mul, Div}; [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/raytracing/shapes/sphere.rs:8:23 [INFO] [stdout] | [INFO] [stdout] 8 | pub material: Box, [INFO] [stdout] | ^^^^^^^^ help: use `dyn`: `dyn Material` [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/raytracing/shapes/sphere.rs:12:42 [INFO] [stdout] | [INFO] [stdout] 12 | fn material<'a>(&'a self) -> &'a Box { [INFO] [stdout] | ^^^^^^^^ help: use `dyn`: `dyn Material` [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/raytracing/render.rs:14:5 [INFO] [stdout] | [INFO] [stdout] 14 | image.save(Path::new("test.png")); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 7 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 38.42s [INFO] running `Command { std: "docker" "inspect" "e2c2b1689f0a8796db96c2bcfb36b4ca4db8a0062541ae7a7c86ef04e012df31", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e2c2b1689f0a8796db96c2bcfb36b4ca4db8a0062541ae7a7c86ef04e012df31", kill_on_drop: false }` [INFO] [stdout] e2c2b1689f0a8796db96c2bcfb36b4ca4db8a0062541ae7a7c86ef04e012df31 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 49dcceaf119821a850801b3612713ca772b6f81023f2fcbdcdf012c8ff089d31 [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" "49dcceaf119821a850801b3612713ca772b6f81023f2fcbdcdf012c8ff089d31", kill_on_drop: false }` [INFO] [stderr] Compiling raytracingv2 v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/raytracing/trace.rs:13:42 [INFO] [stdout] | [INFO] [stdout] 13 | fn material<'a>(&'a self) -> &'a Box; [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 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/raytracing/trace.rs:18:21 [INFO] [stdout] | [INFO] [stdout] 18 | object: &'a Box, [INFO] [stdout] | ^^^^^ help: use `dyn`: `dyn Trace` [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/raytracing/scene.rs:10:26 [INFO] [stdout] | [INFO] [stdout] 10 | pub objects: Vec>, [INFO] [stdout] | ^^^^^ help: use `dyn`: `dyn Trace` [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `Div` [INFO] [stdout] --> src/raytracing/color.rs:2:31 [INFO] [stdout] | [INFO] [stdout] 2 | use std::ops::{Add, Sub, Mul, Div}; [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/raytracing/shapes/sphere.rs:8:23 [INFO] [stdout] | [INFO] [stdout] 8 | pub material: Box, [INFO] [stdout] | ^^^^^^^^ help: use `dyn`: `dyn Material` [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/raytracing/shapes/sphere.rs:12:42 [INFO] [stdout] | [INFO] [stdout] 12 | fn material<'a>(&'a self) -> &'a Box { [INFO] [stdout] | ^^^^^^^^ help: use `dyn`: `dyn Material` [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/raytracing/render.rs:14:5 [INFO] [stdout] | [INFO] [stdout] 14 | image.save(Path::new("test.png")); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 7 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 1.32s [INFO] running `Command { std: "docker" "inspect" "49dcceaf119821a850801b3612713ca772b6f81023f2fcbdcdf012c8ff089d31", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "49dcceaf119821a850801b3612713ca772b6f81023f2fcbdcdf012c8ff089d31", kill_on_drop: false }` [INFO] [stdout] 49dcceaf119821a850801b3612713ca772b6f81023f2fcbdcdf012c8ff089d31 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 1ba655ad4fa749cb6dda7ed65be6b8c1afc35c0131395bfcc461cc8e7284cea3 [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" "1ba655ad4fa749cb6dda7ed65be6b8c1afc35c0131395bfcc461cc8e7284cea3", kill_on_drop: false }` [INFO] [stdout] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] running 10 tests [INFO] [stderr] --> src/raytracing/trace.rs:13:42 [INFO] [stdout] test raytracing::camera::tests::camera_orthagonalization ... ok [INFO] [stderr] | [INFO] [stdout] test raytracing::shapes::sphere::tests::intersect_inside ... ok [INFO] [stderr] 13 | fn material<'a>(&'a self) -> &'a Box; [INFO] [stdout] test raytracing::shapes::sphere::tests::simple_intersect ... ok [INFO] [stderr] | ^^^^^^^^ help: use `dyn`: `dyn Material` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stderr] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stderr] = note: for more information, see [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/raytracing/trace.rs:18:21 [INFO] [stderr] | [INFO] [stderr] 18 | object: &'a Box, [INFO] [stderr] | ^^^^^ help: use `dyn`: `dyn Trace` [INFO] [stderr] | [INFO] [stderr] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stderr] = note: for more information, see [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/raytracing/scene.rs:10:26 [INFO] [stderr] | [INFO] [stderr] 10 | pub objects: Vec>, [INFO] [stderr] | ^^^^^ help: use `dyn`: `dyn Trace` [INFO] [stderr] | [INFO] [stderr] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stderr] = note: for more information, see [INFO] [stderr] [INFO] [stderr] warning: unused import: `Div` [INFO] [stderr] --> src/raytracing/color.rs:2:31 [INFO] [stderr] | [INFO] [stderr] 2 | use std::ops::{Add, Sub, Mul, Div}; [INFO] [stderr] | ^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/raytracing/shapes/sphere.rs:8:23 [INFO] [stderr] | [INFO] [stderr] 8 | pub material: Box, [INFO] [stderr] | ^^^^^^^^ help: use `dyn`: `dyn Material` [INFO] [stderr] | [INFO] [stderr] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stderr] = note: for more information, see [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/raytracing/shapes/sphere.rs:12:42 [INFO] [stderr] | [INFO] [stderr] 12 | fn material<'a>(&'a self) -> &'a Box { [INFO] [stderr] | ^^^^^^^^ help: use `dyn`: `dyn Material` [INFO] [stderr] | [INFO] [stderr] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stderr] = note: for more information, see [INFO] [stderr] [INFO] [stderr] warning: unused `Result` that must be used [INFO] [stderr] --> src/raytracing/render.rs:14:5 [INFO] [stderr] | [INFO] [stderr] 14 | image.save(Path::new("test.png")); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_must_use)]` on by default [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: `raytracingv2` (bin "raytracingv2" test) generated 7 warnings [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.07s [INFO] [stderr] Running unittests (/opt/rustwide/target/debug/deps/raytracingv2-9f17a795775d732f) [INFO] [stdout] test raytracing::shapes::sphere::tests::intersect_scaled ... ok [INFO] [stdout] test raytracing::shapes::sphere::tests::no_intersect_miss ... ok [INFO] [stdout] test raytracing::camera::tests::camera_init ... ok [INFO] [stdout] test raytracing::camera::tests::camera_rays ... ok [INFO] [stdout] test raytracing::camera::tests::fov_components ... ok [INFO] [stdout] test raytracing::shapes::sphere::tests::no_intersect_behind ... ok [INFO] [stdout] test raytracing::shapes::sphere::tests::intersect_translated ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 10 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "1ba655ad4fa749cb6dda7ed65be6b8c1afc35c0131395bfcc461cc8e7284cea3", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "1ba655ad4fa749cb6dda7ed65be6b8c1afc35c0131395bfcc461cc8e7284cea3", kill_on_drop: false }` [INFO] [stdout] 1ba655ad4fa749cb6dda7ed65be6b8c1afc35c0131395bfcc461cc8e7284cea3