[INFO] updating cached repository https://github.com/Swiftaff/rust_ray_tracer_challenge
[INFO] running `"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"`
[INFO] [stderr] From https://github.com/Swiftaff/rust_ray_tracer_challenge
[INFO] [stderr]    dcf1215..3ab11c4  master     -> master
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 3ab11c4b2fa73e8710cf882cef5e740b41a5fd5b
[INFO] checking Swiftaff/rust_ray_tracer_challenge against master#ba72b15666b2491415aec703a02c2364fe5e2790 for pr-71140
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSwiftaff%2Frust_ray_tracer_challenge" "/workspace/builds/worker-4/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Swiftaff/rust_ray_tracer_challenge on toolchain ba72b15666b2491415aec703a02c2364fe5e2790
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ba72b15666b2491415aec703a02c2364fe5e2790" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/Swiftaff/rust_ray_tracer_challenge
[INFO] finished tweaking git repo https://github.com/Swiftaff/rust_ray_tracer_challenge
[INFO] tweaked toml for git repo https://github.com/Swiftaff/rust_ray_tracer_challenge written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/Swiftaff/rust_ray_tracer_challenge already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ba72b15666b2491415aec703a02c2364fe5e2790" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "/opt/rustwide/cargo-home/bin/cargo" "+ba72b15666b2491415aec703a02c2364fe5e2790" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 58d8914343b781ea5da5ec26cade97aa53207707297f3826dc584da11ec85ab4
[INFO] running `"docker" "start" "-a" "58d8914343b781ea5da5ec26cade97aa53207707297f3826dc584da11ec85ab4"`
[INFO] [stderr]     Checking read_input v0.8.4
[INFO] [stderr]     Checking chrono v0.4.11
[INFO] [stderr]     Checking uuid v0.8.1
[INFO] [stderr]     Checking rust_ray_tracer_challenge v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `crate::patterns`
[INFO] [stderr]    --> src/worlds.rs:187:9
[INFO] [stderr]     |
[INFO] [stderr] 187 |     use crate::patterns;
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::planes`
[INFO] [stderr]    --> src/worlds.rs:188:9
[INFO] [stderr]     |
[INFO] [stderr] 188 |     use crate::planes;
[INFO] [stderr]     |         ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/program_chapter_11_refractions.rs:86:9
[INFO] [stderr]    |
[INFO] [stderr] 86 |     let mut pat = patterns::checkers_pattern(c1, c2);
[INFO] [stderr]    |         ----^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 3 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/program_chapter_11_refractions.rs:86:9
[INFO] [stderr]    |
[INFO] [stderr] 86 |     let mut pat = patterns::checkers_pattern(c1, c2);
[INFO] [stderr]    |         ----^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.16s
[INFO] running `"docker" "inspect" "58d8914343b781ea5da5ec26cade97aa53207707297f3826dc584da11ec85ab4"`
[INFO] running `"docker" "rm" "-f" "58d8914343b781ea5da5ec26cade97aa53207707297f3826dc584da11ec85ab4"`
[INFO] [stdout] 58d8914343b781ea5da5ec26cade97aa53207707297f3826dc584da11ec85ab4