[INFO] cloning repository https://github.com/GarfieldZHU/ray-tracer-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/GarfieldZHU/ray-tracer-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGarfieldZHU%2Fray-tracer-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGarfieldZHU%2Fray-tracer-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 11c73dfa825eb1ffdf72b5214437a6eb12f1721d
[INFO] checking GarfieldZHU/ray-tracer-rs against master#dfd7b8d03fb93d0e03147d28b3be6d93260fa94d for pr-87050
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGarfieldZHU%2Fray-tracer-rs" "/workspace/builds/worker-11/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-11/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/GarfieldZHU/ray-tracer-rs 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/GarfieldZHU/ray-tracer-rs
[INFO] finished tweaking git repo https://github.com/GarfieldZHU/ray-tracer-rs
[INFO] tweaked toml for git repo https://github.com/GarfieldZHU/ray-tracer-rs written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] crate git repo https://github.com/GarfieldZHU/ray-tracer-rs 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-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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] 816a7da18c233023de939fbfa4f7ae84a24bcbd226f73f4d74dda2c2ca67f15f
[INFO] running `Command { std: "docker" "start" "-a" "816a7da18c233023de939fbfa4f7ae84a24bcbd226f73f4d74dda2c2ca67f15f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "816a7da18c233023de939fbfa4f7ae84a24bcbd226f73f4d74dda2c2ca67f15f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "816a7da18c233023de939fbfa4f7ae84a24bcbd226f73f4d74dda2c2ca67f15f", kill_on_drop: false }`
[INFO] [stdout] 816a7da18c233023de939fbfa4f7ae84a24bcbd226f73f4d74dda2c2ca67f15f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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] 7f6b8fe22f8b89a74ace9a909f3d247483b8bda583f9ebd5caafce4343c4e583
[INFO] running `Command { std: "docker" "start" "-a" "7f6b8fe22f8b89a74ace9a909f3d247483b8bda583f9ebd5caafce4343c4e583", kill_on_drop: false }`
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking RayTracing v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]   --> src/geometry/sphere.rs:31:5
[INFO] [stdout]    |
[INFO] [stdout] 31 |     (discriminant > 0.0) 
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]   --> src/geometry/sphere.rs:31:5
[INFO] [stdout]    |
[INFO] [stdout] 31 |     (discriminant > 0.0) 
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `radius`
[INFO] [stdout]    --> src/misc/samples.rs:172:7
[INFO] [stdout]     |
[INFO] [stdout] 172 |   let radius = (PI / 4.0).cos();
[INFO] [stdout]     |       ^^^^^^ help: if this is intentional, prefix it with an underscore: `_radius`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `radius`
[INFO] [stdout]    --> src/misc/samples.rs:172:7
[INFO] [stdout]     |
[INFO] [stdout] 172 |   let radius = (PI / 4.0).cos();
[INFO] [stdout]     |       ^^^^^^ help: if this is intentional, prefix it with an underscore: `_radius`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Image`
[INFO] [stdout]  --> src/core/image.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | struct Image {
[INFO] [stdout]   |        ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Image`
[INFO] [stdout]  --> src/core/image.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | struct Image {
[INFO] [stdout]   |        ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.67s
[INFO] running `Command { std: "docker" "inspect" "7f6b8fe22f8b89a74ace9a909f3d247483b8bda583f9ebd5caafce4343c4e583", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7f6b8fe22f8b89a74ace9a909f3d247483b8bda583f9ebd5caafce4343c4e583", kill_on_drop: false }`
[INFO] [stdout] 7f6b8fe22f8b89a74ace9a909f3d247483b8bda583f9ebd5caafce4343c4e583