[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 try#45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4 for pr-83744
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGarfieldZHU%2Fray-tracer-rs" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/GarfieldZHU/ray-tracer-rs on toolchain 45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "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-3/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" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "rustops/crates-build-env@sha256:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 4b47f0831aaad6b4dc265bab30fcbff745a9a04c89fe83bd3845bf50255ea03a
[INFO] running `Command { std: "docker" "start" "-a" "4b47f0831aaad6b4dc265bab30fcbff745a9a04c89fe83bd3845bf50255ea03a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4b47f0831aaad6b4dc265bab30fcbff745a9a04c89fe83bd3845bf50255ea03a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4b47f0831aaad6b4dc265bab30fcbff745a9a04c89fe83bd3845bf50255ea03a", kill_on_drop: false }`
[INFO] [stdout] 4b47f0831aaad6b4dc265bab30fcbff745a9a04c89fe83bd3845bf50255ea03a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "rustops/crates-build-env@sha256:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 21f680cd2747b877c6bd29f483ee6e2291ee2bd6bfb780e7b8ee37c3abe2b8bf
[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" "21f680cd2747b877c6bd29f483ee6e2291ee2bd6bfb780e7b8ee37c3abe2b8bf", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.72
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking ppv-lite86 v0.2.8
[INFO] [stderr]     Checking getrandom v0.1.14
[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: 3 warnings emitted
[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] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.25s
[INFO] running `Command { std: "docker" "inspect" "21f680cd2747b877c6bd29f483ee6e2291ee2bd6bfb780e7b8ee37c3abe2b8bf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "21f680cd2747b877c6bd29f483ee6e2291ee2bd6bfb780e7b8ee37c3abe2b8bf", kill_on_drop: false }`
[INFO] [stdout] 21f680cd2747b877c6bd29f483ee6e2291ee2bd6bfb780e7b8ee37c3abe2b8bf