[INFO] updating cached 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" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }`
[INFO] [stderr] From https://github.com/GarfieldZHU/ray-tracer-rs
[INFO] [stderr]    8391d99..829bebb  master     -> master
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 829bebbed9b6e70ecd465c172c8042ea76cfd731
[INFO] checking GarfieldZHU/ray-tracer-rs against master#1557fb031b272b4c5bfcc7de5df7eddc7b36a584 for pr-73166
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGarfieldZHU%2Fray-tracer-rs" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/GarfieldZHU/ray-tracer-rs on toolchain 1557fb031b272b4c5bfcc7de5df7eddc7b36a584
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1557fb031b272b4c5bfcc7de5df7eddc7b36a584" "read-manifest" "--manifest-path" "Cargo.toml", 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-7/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" "+1557fb031b272b4c5bfcc7de5df7eddc7b36a584" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1557fb031b272b4c5bfcc7de5df7eddc7b36a584" "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] cd8200e7c29b98c84c78207cc2e90a9da0e674da0b37ba5f0e2e6a18be746b30
[INFO] running `Command { std: "docker" "start" "-a" "cd8200e7c29b98c84c78207cc2e90a9da0e674da0b37ba5f0e2e6a18be746b30", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cd8200e7c29b98c84c78207cc2e90a9da0e674da0b37ba5f0e2e6a18be746b30", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cd8200e7c29b98c84c78207cc2e90a9da0e674da0b37ba5f0e2e6a18be746b30", kill_on_drop: false }`
[INFO] [stdout] cd8200e7c29b98c84c78207cc2e90a9da0e674da0b37ba5f0e2e6a18be746b30
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1557fb031b272b4c5bfcc7de5df7eddc7b36a584" "check" "--frozen" "--all" "--all-targets" "--message-format=json", 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] 249c3a885056d0bd3f87f1341966355c432041a10cd2e4e58341920fe5ba1b48
[INFO] running `Command { std: "docker" "start" "-a" "249c3a885056d0bd3f87f1341966355c432041a10cd2e4e58341920fe5ba1b48", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.72
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking ppv-lite86 v0.2.8
[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:29:5
[INFO] [stdout]    |
[INFO] [stdout] 29 |     (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:29:5
[INFO] [stdout]    |
[INFO] [stdout] 29 |     (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: `depth`
[INFO] [stdout]   --> src/utils/utils.rs:62:58
[INFO] [stdout]    |
[INFO] [stdout] 62 | pub fn material_ray_color(r: &Ray, world: &HittableList, depth: u32) -> Color {  
[INFO] [stdout]    |                                                          ^^^^^ help: if this is intentional, prefix it with an underscore: `_depth`
[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: unused variable: `depth`
[INFO] [stdout]   --> src/utils/utils.rs:62:58
[INFO] [stdout]    |
[INFO] [stdout] 62 | pub fn material_ray_color(r: &Ray, world: &HittableList, depth: u32) -> Color {  
[INFO] [stdout]    |                                                          ^^^^^ help: if this is intentional, prefix it with an underscore: `_depth`
[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] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.52s
[INFO] running `Command { std: "docker" "inspect" "249c3a885056d0bd3f87f1341966355c432041a10cd2e4e58341920fe5ba1b48", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "249c3a885056d0bd3f87f1341966355c432041a10cd2e4e58341920fe5ba1b48", kill_on_drop: false }`
[INFO] [stdout] 249c3a885056d0bd3f87f1341966355c432041a10cd2e4e58341920fe5ba1b48