[INFO] cloning repository https://github.com/Rohithcheryala/raytracer_rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Rohithcheryala/raytracer_rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRohithcheryala%2Fraytracer_rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRohithcheryala%2Fraytracer_rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3b8594a6a19f57a5e3e8ced1bfcedc6b828d220f
[INFO] checking Rohithcheryala/raytracer_rust against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRohithcheryala%2Fraytracer_rust" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Rohithcheryala/raytracer_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/Rohithcheryala/raytracer_rust
[INFO] finished tweaking git repo https://github.com/Rohithcheryala/raytracer_rust
[INFO] tweaked toml for git repo https://github.com/Rohithcheryala/raytracer_rust written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/Rohithcheryala/raytracer_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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 3ac30a7bdab045d0e9e782b13b6d12134ac5a09db0ff6a909831598cdadf847d
[INFO] running `Command { std: "docker" "start" "-a" "3ac30a7bdab045d0e9e782b13b6d12134ac5a09db0ff6a909831598cdadf847d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3ac30a7bdab045d0e9e782b13b6d12134ac5a09db0ff6a909831598cdadf847d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3ac30a7bdab045d0e9e782b13b6d12134ac5a09db0ff6a909831598cdadf847d", kill_on_drop: false }`
[INFO] [stdout] 3ac30a7bdab045d0e9e782b13b6d12134ac5a09db0ff6a909831598cdadf847d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 4d2bc706430d7073918d2e0c9397b301acc1ad612128fbc738dde7c079ba931b
[INFO] running `Command { std: "docker" "start" "-a" "4d2bc706430d7073918d2e0c9397b301acc1ad612128fbc738dde7c079ba931b", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling crossbeam-utils v0.8.6
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.6
[INFO] [stderr]    Compiling libc v0.2.113
[INFO] [stderr]    Compiling rayon-core v1.9.1
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]    Compiling rayon v1.5.1
[INFO] [stderr]     Checking crossbeam-channel v0.5.2
[INFO] [stderr]     Checking num_cpus v1.13.1
[INFO] [stderr]     Checking crossbeam-deque v0.8.1
[INFO] [stderr]     Checking raytracer_rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `AsRef` is imported redundantly
[INFO] [stdout]  --> src/canvas.rs:3:11
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::{convert::AsRef, fs, path::Path};
[INFO] [stdout]   |           ^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:148:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `AsRef` is already defined here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `AsRef` is imported redundantly
[INFO] [stdout]  --> src/canvas.rs:3:11
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::{convert::AsRef, fs, path::Path};
[INFO] [stdout]   |           ^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:148:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `AsRef` is already defined here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Group` is imported redundantly
[INFO] [stdout]    --> src/group.rs:112:9
[INFO] [stdout]     |
[INFO] [stdout] 110 |     use super::*;
[INFO] [stdout]     |         -------- the item `Group` is already imported here
[INFO] [stdout] 111 |     use crate::{
[INFO] [stdout] 112 |         group::Group,
[INFO] [stdout]     |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Matrix` is imported redundantly
[INFO] [stdout]    --> src/group.rs:114:9
[INFO] [stdout]     |
[INFO] [stdout] 110 |     use super::*;
[INFO] [stdout]     |         -------- the item `Matrix` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 114 |         matrix::Matrix,
[INFO] [stdout]     |         ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Intersectable` is imported redundantly
[INFO] [stdout]    --> src/intersections.rs:133:9
[INFO] [stdout]     |
[INFO] [stdout] 131 |     use super::*;
[INFO] [stdout]     |         -------- the item `Intersectable` is already imported here
[INFO] [stdout] 132 |     use crate::{
[INFO] [stdout] 133 |         body::Intersectable, material::Phong, matrix::Matrix, sphere::Sphere, tuple::Tuple,
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.53s
[INFO] running `Command { std: "docker" "inspect" "4d2bc706430d7073918d2e0c9397b301acc1ad612128fbc738dde7c079ba931b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4d2bc706430d7073918d2e0c9397b301acc1ad612128fbc738dde7c079ba931b", kill_on_drop: false }`
[INFO] [stdout] 4d2bc706430d7073918d2e0c9397b301acc1ad612128fbc738dde7c079ba931b