[INFO] cloning repository https://github.com/woodyZootopia/ray_tracing_in_rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/woodyZootopia/ray_tracing_in_rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FwoodyZootopia%2Fray_tracing_in_rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FwoodyZootopia%2Fray_tracing_in_rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] edb493f93c1f5dc6c576dc2df5651c8df87e45f0
[INFO] checking woodyZootopia/ray_tracing_in_rust against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FwoodyZootopia%2Fray_tracing_in_rust" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/woodyZootopia/ray_tracing_in_rust on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/woodyZootopia/ray_tracing_in_rust
[INFO] finished tweaking git repo https://github.com/woodyZootopia/ray_tracing_in_rust
[INFO] tweaked toml for git repo https://github.com/woodyZootopia/ray_tracing_in_rust written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/woodyZootopia/ray_tracing_in_rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0d769384fe566b92093c3b3bdb24c925a2369572de5ef70bf233dea6f9d039fd
[INFO] running `Command { std: "docker" "start" "-a" "0d769384fe566b92093c3b3bdb24c925a2369572de5ef70bf233dea6f9d039fd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0d769384fe566b92093c3b3bdb24c925a2369572de5ef70bf233dea6f9d039fd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0d769384fe566b92093c3b3bdb24c925a2369572de5ef70bf233dea6f9d039fd", kill_on_drop: false }`
[INFO] [stdout] 0d769384fe566b92093c3b3bdb24c925a2369572de5ef70bf233dea6f9d039fd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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" "RUSTDOCFLAGS=--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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0e3b9ff32c522feaa7c051f65a0d7eb42f5ab08cd2c1f895f4b3f4b58bb02af4
[INFO] running `Command { std: "docker" "start" "-a" "0e3b9ff32c522feaa7c051f65a0d7eb42f5ab08cd2c1f895f4b3f4b58bb02af4", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.93
[INFO] [stderr]    Compiling crossbeam-utils v0.8.3
[INFO] [stderr]    Compiling memoffset v0.6.3
[INFO] [stderr]    Compiling getrandom v0.2.2
[INFO] [stderr]    Compiling rayon-core v1.9.0
[INFO] [stderr]    Compiling rayon v1.5.0
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]     Checking crossbeam-epoch v0.9.3
[INFO] [stderr]     Checking crossbeam-channel v0.5.1
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking rand_core v0.6.2
[INFO] [stderr]     Checking crossbeam-deque v0.8.0
[INFO] [stderr]     Checking rand_chacha v0.3.0
[INFO] [stderr]     Checking rand v0.8.3
[INFO] [stderr]     Checking ray_tracing_in_rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `Ray` is imported redundantly
[INFO] [stdout]  --> src/sphere.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use super::*;
[INFO] [stdout]   |     -------- the item `Ray` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 5 |     ray::Ray,
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Point3` is imported redundantly
[INFO] [stdout]  --> src/sphere.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use super::*;
[INFO] [stdout]   |     -------- the item `Point3` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 6 |     Point3,
[INFO] [stdout]   |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Ray` is imported redundantly
[INFO] [stdout]  --> src/sphere.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use super::*;
[INFO] [stdout]   |     -------- the item `Ray` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 5 |     ray::Ray,
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Point3` is imported redundantly
[INFO] [stdout]  --> src/sphere.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use super::*;
[INFO] [stdout]   |     -------- the item `Point3` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 6 |     Point3,
[INFO] [stdout]   |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `w` is never read
[INFO] [stdout]   --> src/camera.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 2  | pub struct Camera {
[INFO] [stdout]    |            ------ field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 10 |     w: Vec3,
[INFO] [stdout]    |     ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `w` is never read
[INFO] [stdout]   --> src/camera.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 2  | pub struct Camera {
[INFO] [stdout]    |            ------ field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 10 |     w: Vec3,
[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` profile [unoptimized + debuginfo] target(s) in 7.29s
[INFO] running `Command { std: "docker" "inspect" "0e3b9ff32c522feaa7c051f65a0d7eb42f5ab08cd2c1f895f4b3f4b58bb02af4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0e3b9ff32c522feaa7c051f65a0d7eb42f5ab08cd2c1f895f4b3f4b58bb02af4", kill_on_drop: false }`
[INFO] [stdout] 0e3b9ff32c522feaa7c051f65a0d7eb42f5ab08cd2c1f895f4b3f4b58bb02af4