Dec 19 05:24:38.977 INFO checking wwkeyboard/ray_tracer_challenge against master#d99a320cba42f661aebfa1293b7b2ec3603dda75 for pr-56955
Dec 19 05:24:38.977 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-5/master#d99a320cba42f661aebfa1293b7b2ec3603dda75:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/master#d99a320cba42f661aebfa1293b7b2ec3603dda75/gh/wwkeyboard/ray_tracer_challenge:/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" "+d99a320cba42f661aebfa1293b7b2ec3603dda75-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 05:24:39.520 INFO [stdout] 7b1e6dc25b22665cd50f0d34bf8737a9bc1db6a164050cfd6a3ccc4d186afb11
Dec 19 05:24:39.522 INFO running `"docker" "start" "-a" "7b1e6dc25b22665cd50f0d34bf8737a9bc1db6a164050cfd6a3ccc4d186afb11"`
Dec 19 05:24:40.876 INFO [stderr]    Compiling num-traits v0.2.6
Dec 19 05:24:40.876 INFO [stderr]    Compiling num-integer v0.1.39
Dec 19 05:24:40.876 INFO [stderr]    Compiling num-bigint v0.2.0
Dec 19 05:24:40.876 INFO [stderr]    Compiling num-iter v0.1.37
Dec 19 05:24:40.876 INFO [stderr]    Compiling num-complex v0.2.0
Dec 19 05:24:40.876 INFO [stderr]    Compiling num-rational v0.2.1
Dec 19 05:24:47.865 INFO [stderr]     Checking num v0.2.0
Dec 19 05:24:47.941 INFO [stderr]     Checking ray_tracer_challenge v0.1.0 (/opt/crater/workdir)
Dec 19 05:24:48.042 INFO [stderr] warning: unused import: `color::Color`
Dec 19 05:24:48.042 INFO [stderr]  --> src/main.rs:6:5
Dec 19 05:24:48.042 INFO [stderr]   |
Dec 19 05:24:48.042 INFO [stderr] 6 | use color::Color;
Dec 19 05:24:48.042 INFO [stderr]   |     ^^^^^^^^^^^^
Dec 19 05:24:48.042 INFO [stderr]   |
Dec 19 05:24:48.042 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 19 05:24:48.042 INFO [stderr] 
Dec 19 05:24:48.092 INFO [stderr] warning: unused import: `color::Color`
Dec 19 05:24:48.092 INFO [stderr]  --> src/main.rs:6:5
Dec 19 05:24:48.092 INFO [stderr]   |
Dec 19 05:24:48.092 INFO [stderr] 6 | use color::Color;
Dec 19 05:24:48.092 INFO [stderr]   |     ^^^^^^^^^^^^
Dec 19 05:24:48.092 INFO [stderr]   |
Dec 19 05:24:48.092 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 19 05:24:48.092 INFO [stderr] 
Dec 19 05:24:48.178 INFO [stderr] warning: method is never used: `pixel_at`
Dec 19 05:24:48.178 INFO [stderr]   --> src/canvas.rs:44:5
Dec 19 05:24:48.178 INFO [stderr]    |
Dec 19 05:24:48.178 INFO [stderr] 44 |     fn pixel_at(&self, x: usize, y: usize) -> color::Color {
Dec 19 05:24:48.178 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 05:24:48.178 INFO [stderr]    |
Dec 19 05:24:48.178 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 19 05:24:48.178 INFO [stderr] 
Dec 19 05:24:48.178 INFO [stderr] warning: method is never used: `new`
Dec 19 05:24:48.178 INFO [stderr]  --> src/matrix.rs:7:5
Dec 19 05:24:48.178 INFO [stderr]   |
Dec 19 05:24:48.178 INFO [stderr] 7 |     pub fn new(m: Vec<Vec<f32>>) -> Matrix {
Dec 19 05:24:48.178 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 05:24:48.178 INFO [stderr] 
Dec 19 05:24:48.178 INFO [stderr] warning: constant item is never used: `ZERO_VECTOR`
Dec 19 05:24:48.178 INFO [stderr]   --> src/point.rs:7:1
Dec 19 05:24:48.178 INFO [stderr]    |
Dec 19 05:24:48.178 INFO [stderr] 7  | / const ZERO_VECTOR: Tuple = Tuple {
Dec 19 05:24:48.178 INFO [stderr] 8  | |     x: 0.,
Dec 19 05:24:48.178 INFO [stderr] 9  | |     y: 0.,
Dec 19 05:24:48.178 INFO [stderr] 10 | |     z: 0.,
Dec 19 05:24:48.178 INFO [stderr] 11 | |     w: 0.,
Dec 19 05:24:48.179 INFO [stderr] 12 | | };
Dec 19 05:24:48.179 INFO [stderr]    | |__^
Dec 19 05:24:48.179 INFO [stderr] 
Dec 19 05:24:48.179 INFO [stderr] warning: method is never used: `is_vector`
Dec 19 05:24:48.179 INFO [stderr]   --> src/point.rs:27:5
Dec 19 05:24:48.179 INFO [stderr]    |
Dec 19 05:24:48.179 INFO [stderr] 27 |     pub fn is_vector(&self) -> bool {
Dec 19 05:24:48.179 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 05:24:48.179 INFO [stderr] 
Dec 19 05:24:48.179 INFO [stderr] warning: method is never used: `is_point`
Dec 19 05:24:48.179 INFO [stderr]   --> src/point.rs:31:5
Dec 19 05:24:48.179 INFO [stderr]    |
Dec 19 05:24:48.179 INFO [stderr] 31 |     pub fn is_point(&self) -> bool {
Dec 19 05:24:48.179 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 05:24:48.179 INFO [stderr] 
Dec 19 05:24:48.179 INFO [stderr] warning: method is never used: `negate`
Dec 19 05:24:48.179 INFO [stderr]   --> src/point.rs:53:5
Dec 19 05:24:48.179 INFO [stderr]    |
Dec 19 05:24:48.179 INFO [stderr] 53 |     pub fn negate(self) -> Tuple {
Dec 19 05:24:48.179 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 05:24:48.179 INFO [stderr] 
Dec 19 05:24:48.179 INFO [stderr] warning: method is never used: `magnitude`
Dec 19 05:24:48.179 INFO [stderr]   --> src/point.rs:57:5
Dec 19 05:24:48.179 INFO [stderr]    |
Dec 19 05:24:48.179 INFO [stderr] 57 |     pub fn magnitude(&self) -> f32 {
Dec 19 05:24:48.179 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 05:24:48.179 INFO [stderr] 
Dec 19 05:24:48.179 INFO [stderr] warning: method is never used: `normalize`
Dec 19 05:24:48.179 INFO [stderr]   --> src/point.rs:61:5
Dec 19 05:24:48.179 INFO [stderr]    |
Dec 19 05:24:48.179 INFO [stderr] 61 |     pub fn normalize(&self) -> Tuple {
Dec 19 05:24:48.179 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 05:24:48.179 INFO [stderr] 
Dec 19 05:24:48.179 INFO [stderr] warning: method is never used: `dot`
Dec 19 05:24:48.179 INFO [stderr]   --> src/point.rs:72:5
Dec 19 05:24:48.179 INFO [stderr]    |
Dec 19 05:24:48.179 INFO [stderr] 72 |     pub fn dot(&self, other: Tuple) -> f32 {
Dec 19 05:24:48.179 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 05:24:48.179 INFO [stderr] 
Dec 19 05:24:48.179 INFO [stderr] warning: method is never used: `cross`
Dec 19 05:24:48.179 INFO [stderr]   --> src/point.rs:76:5
Dec 19 05:24:48.179 INFO [stderr]    |
Dec 19 05:24:48.179 INFO [stderr] 76 |     pub fn cross(&self, other: Tuple) -> Tuple {
Dec 19 05:24:48.179 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 05:24:48.179 INFO [stderr] 
Dec 19 05:24:48.504 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.66s
Dec 19 05:24:48.807 INFO running `"docker" "inspect" "7b1e6dc25b22665cd50f0d34bf8737a9bc1db6a164050cfd6a3ccc4d186afb11"`
Dec 19 05:24:48.973 INFO running `"docker" "rm" "-f" "7b1e6dc25b22665cd50f0d34bf8737a9bc1db6a164050cfd6a3ccc4d186afb11"`
Dec 19 05:24:49.087 INFO [stdout] 7b1e6dc25b22665cd50f0d34bf8737a9bc1db6a164050cfd6a3ccc4d186afb11