[INFO] updating cached repository tatref/raytracer
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/tatref/raytracer
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/tatref/raytracer" "work/ex/pr-62507/sources/master#78ca1bda3522b14bc0336bc01dd1d49fdba2cda7/gh/tatref/raytracer"`
[INFO] [stderr] Cloning into 'work/ex/pr-62507/sources/master#78ca1bda3522b14bc0336bc01dd1d49fdba2cda7/gh/tatref/raytracer'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/tatref/raytracer" "work/ex/pr-62507/sources/try#18481b65f318e0b4b20c0fc61340054701719d6c/gh/tatref/raytracer"`
[INFO] [stderr] Cloning into 'work/ex/pr-62507/sources/try#18481b65f318e0b4b20c0fc61340054701719d6c/gh/tatref/raytracer'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 70b59d9274144cc729db456e2416bdcc109f228d
[INFO] sha for GitHub repo tatref/raytracer: 70b59d9274144cc729db456e2416bdcc109f228d
[INFO] validating manifest of tatref/raytracer on toolchain master#78ca1bda3522b14bc0336bc01dd1d49fdba2cda7
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+78ca1bda3522b14bc0336bc01dd1d49fdba2cda7-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of tatref/raytracer on toolchain try#18481b65f318e0b4b20c0fc61340054701719d6c
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+18481b65f318e0b4b20c0fc61340054701719d6c-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing tatref/raytracer
[INFO] finished frobbing tatref/raytracer
[INFO] frobbed toml for tatref/raytracer written to work/ex/pr-62507/sources/master#78ca1bda3522b14bc0336bc01dd1d49fdba2cda7/gh/tatref/raytracer/Cargo.toml
[INFO] started frobbing tatref/raytracer
[INFO] finished frobbing tatref/raytracer
[INFO] frobbed toml for tatref/raytracer written to work/ex/pr-62507/sources/try#18481b65f318e0b4b20c0fc61340054701719d6c/gh/tatref/raytracer/Cargo.toml
[INFO] crate tatref/raytracer already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+78ca1bda3522b14bc0336bc01dd1d49fdba2cda7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+18481b65f318e0b4b20c0fc61340054701719d6c-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking tatref/raytracer against try#18481b65f318e0b4b20c0fc61340054701719d6c for pr-62507
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-62507/worker-7/try#18481b65f318e0b4b20c0fc61340054701719d6c:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-62507/sources/try#18481b65f318e0b4b20c0fc61340054701719d6c/gh/tatref/raytracer:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+18481b65f318e0b4b20c0fc61340054701719d6c-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 2d50da5d088d60253d45b173716f760d1b6d889993105fcd65bac350e08d121c
[INFO] running `"docker" "start" "-a" "2d50da5d088d60253d45b173716f760d1b6d889993105fcd65bac350e08d121c"`
[INFO] [stderr]    Compiling syn v0.15.32
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]     Checking png v0.14.1
[INFO] [stderr]     Checking nalgebra v0.18.0
[INFO] [stderr]    Compiling num-derive v0.2.5
[INFO] [stderr]     Checking tiff v0.2.2
[INFO] [stderr]     Checking image v0.21.1
[INFO] [stderr]     Checking ncollide3d v0.19.1
[INFO] [stderr]     Checking raytracer v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: constant item is never used: `MAX_STEPS`
[INFO] [stderr]   --> src/main.rs:24:1
[INFO] [stderr]    |
[INFO] [stderr] 24 | const MAX_STEPS: usize = 1024;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `PRECISION`
[INFO] [stderr]   --> src/main.rs:25:1
[INFO] [stderr]    |
[INFO] [stderr] 25 | const PRECISION: f32 = 0.00001;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `intensity`
[INFO] [stderr]   --> src/main.rs:55:5
[INFO] [stderr]    |
[INFO] [stderr] 55 |     intensity: f32,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `MAX_STEPS`
[INFO] [stderr]   --> src/main.rs:24:1
[INFO] [stderr]    |
[INFO] [stderr] 24 | const MAX_STEPS: usize = 1024;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `PRECISION`
[INFO] [stderr]   --> src/main.rs:25:1
[INFO] [stderr]    |
[INFO] [stderr] 25 | const PRECISION: f32 = 0.00001;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `intensity`
[INFO] [stderr]   --> src/main.rs:55:5
[INFO] [stderr]    |
[INFO] [stderr] 55 |     intensity: f32,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 57.41s
[INFO] running `"docker" "inspect" "2d50da5d088d60253d45b173716f760d1b6d889993105fcd65bac350e08d121c"`
[INFO] running `"docker" "rm" "-f" "2d50da5d088d60253d45b173716f760d1b6d889993105fcd65bac350e08d121c"`
[INFO] [stdout] 2d50da5d088d60253d45b173716f760d1b6d889993105fcd65bac350e08d121c