[INFO] cloning repository https://github.com/Jakob-Strobl/rust-ray-tracer-in-one-weekend
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Jakob-Strobl/rust-ray-tracer-in-one-weekend" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJakob-Strobl%2Frust-ray-tracer-in-one-weekend", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJakob-Strobl%2Frust-ray-tracer-in-one-weekend'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b29a4a9eef5220944690ddd86f8dae47739a26f4
[INFO] checking Jakob-Strobl/rust-ray-tracer-in-one-weekend against master#dfd7b8d03fb93d0e03147d28b3be6d93260fa94d for pr-87050
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJakob-Strobl%2Frust-ray-tracer-in-one-weekend" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Jakob-Strobl/rust-ray-tracer-in-one-weekend on toolchain dfd7b8d03fb93d0e03147d28b3be6d93260fa94d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Jakob-Strobl/rust-ray-tracer-in-one-weekend
[INFO] finished tweaking git repo https://github.com/Jakob-Strobl/rust-ray-tracer-in-one-weekend
[INFO] tweaked toml for git repo https://github.com/Jakob-Strobl/rust-ray-tracer-in-one-weekend written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/Jakob-Strobl/rust-ray-tracer-in-one-weekend already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f756c97a07ad0733cd9d637480d65c10b20a8333c4cc99c2dc4d977118fba635
[INFO] running `Command { std: "docker" "start" "-a" "f756c97a07ad0733cd9d637480d65c10b20a8333c4cc99c2dc4d977118fba635", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f756c97a07ad0733cd9d637480d65c10b20a8333c4cc99c2dc4d977118fba635", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f756c97a07ad0733cd9d637480d65c10b20a8333c4cc99c2dc4d977118fba635", kill_on_drop: false }`
[INFO] [stdout] f756c97a07ad0733cd9d637480d65c10b20a8333c4cc99c2dc4d977118fba635
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a04516efc02bf9a5ac05f2229c70f2dd62dfd71771a9a0fcc85075e6a41b7fe1
[INFO] running `Command { std: "docker" "start" "-a" "a04516efc02bf9a5ac05f2229c70f2dd62dfd71771a9a0fcc85075e6a41b7fe1", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.82
[INFO] [stderr]     Checking ppv-lite86 v0.2.10
[INFO] [stderr]     Checking getrandom v0.2.2
[INFO] [stderr]     Checking rand_core v0.6.1
[INFO] [stderr]     Checking rand_chacha v0.3.0
[INFO] [stderr]     Checking rand v0.8.2
[INFO] [stderr]     Checking raytracer-in-one-weekend v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `crate::rt`
[INFO] [stdout]  --> src/color.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use crate::rt;
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `for` iterator expression
[INFO] [stdout]   --> src/lib.rs:95:27
[INFO] [stdout]    |
[INFO] [stdout] 95 |             for sample in (0..samples_per_pixel) {
[INFO] [stdout]    |                           ^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sample`
[INFO] [stdout]   --> src/lib.rs:95:17
[INFO] [stdout]    |
[INFO] [stdout] 95 |             for sample in (0..samples_per_pixel) {
[INFO] [stdout]    |                 ^^^^^^ help: if this is intentional, prefix it with an underscore: `_sample`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::rt`
[INFO] [stdout]  --> src/color.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use crate::rt;
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `for` iterator expression
[INFO] [stdout]   --> src/lib.rs:95:27
[INFO] [stdout]    |
[INFO] [stdout] 95 |             for sample in (0..samples_per_pixel) {
[INFO] [stdout]    |                           ^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `point`
[INFO] [stdout]  --> src/model.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 |     point: vector::Vec3,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sample`
[INFO] [stdout]   --> src/lib.rs:95:17
[INFO] [stdout]    |
[INFO] [stdout] 95 |             for sample in (0..samples_per_pixel) {
[INFO] [stdout]    |                 ^^^^^^ help: if this is intentional, prefix it with an underscore: `_sample`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `point`
[INFO] [stdout]  --> src/model.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 |     point: vector::Vec3,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.34s
[INFO] running `Command { std: "docker" "inspect" "a04516efc02bf9a5ac05f2229c70f2dd62dfd71771a9a0fcc85075e6a41b7fe1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a04516efc02bf9a5ac05f2229c70f2dd62dfd71771a9a0fcc85075e6a41b7fe1", kill_on_drop: false }`
[INFO] [stdout] a04516efc02bf9a5ac05f2229c70f2dd62dfd71771a9a0fcc85075e6a41b7fe1