Dec 11 06:00:57.074 INFO checking wwkeyboard/ray_tracer_challenge against master#3a75e80557a103497cffbcab395a2f37061a77ea for pr-56677
Dec 11 06:00:57.074 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-2/master#3a75e80557a103497cffbcab395a2f37061a77ea:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/pr-56677/master#3a75e80557a103497cffbcab395a2f37061a77ea:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +3a75e80557a103497cffbcab395a2f37061a77ea-alt check --frozen --all --all-targets" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 11 06:00:57.716 INFO [stdout] 3bc01a6683834f28af2b90767222b37e31a6c717779053e8cd06a0816d03777d
Dec 11 06:00:57.718 INFO running `"docker" "start" "-a" "3bc01a6683834f28af2b90767222b37e31a6c717779053e8cd06a0816d03777d"`
Dec 11 06:00:58.800 INFO [stderr] usermod: no changes
Dec 11 06:00:58.864 INFO [stderr]    Compiling num-traits v0.2.6
Dec 11 06:00:58.864 INFO [stderr]    Compiling num-iter v0.1.37
Dec 11 06:01:01.656 INFO [stderr]     Checking num-integer v0.1.39
Dec 11 06:01:01.656 INFO [stderr]     Checking num-complex v0.2.0
Dec 11 06:01:02.249 INFO [stderr]     Checking num-bigint v0.2.0
Dec 11 06:01:04.091 INFO [stderr]     Checking num-rational v0.2.1
Dec 11 06:01:04.828 INFO [stderr]     Checking num v0.2.0
Dec 11 06:01:04.996 INFO [stderr]     Checking ray_tracer_challenge v0.1.0 (/source)
Dec 11 06:01:05.170 INFO [stderr] warning: unused import: `color::Color`
Dec 11 06:01:05.170 INFO [stderr]  --> src/main.rs:6:5
Dec 11 06:01:05.170 INFO [stderr]   |
Dec 11 06:01:05.170 INFO [stderr] 6 | use color::Color;
Dec 11 06:01:05.170 INFO [stderr]   |     ^^^^^^^^^^^^
Dec 11 06:01:05.170 INFO [stderr]   |
Dec 11 06:01:05.170 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 11 06:01:05.176 INFO [stderr] 
Dec 11 06:01:05.204 INFO [stderr] warning: unused import: `color::Color`
Dec 11 06:01:05.204 INFO [stderr]  --> src/main.rs:6:5
Dec 11 06:01:05.204 INFO [stderr]   |
Dec 11 06:01:05.204 INFO [stderr] 6 | use color::Color;
Dec 11 06:01:05.204 INFO [stderr]   |     ^^^^^^^^^^^^
Dec 11 06:01:05.204 INFO [stderr]   |
Dec 11 06:01:05.204 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 11 06:01:05.204 INFO [stderr] 
Dec 11 06:01:05.324 INFO [stderr] warning: method is never used: `pixel_at`
Dec 11 06:01:05.324 INFO [stderr]   --> src/canvas.rs:44:5
Dec 11 06:01:05.324 INFO [stderr]    |
Dec 11 06:01:05.324 INFO [stderr] 44 |     fn pixel_at(&self, x: usize, y: usize) -> color::Color {
Dec 11 06:01:05.324 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 06:01:05.324 INFO [stderr]    |
Dec 11 06:01:05.324 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 11 06:01:05.325 INFO [stderr] 
Dec 11 06:01:05.325 INFO [stderr] warning: method is never used: `new`
Dec 11 06:01:05.325 INFO [stderr]  --> src/matrix.rs:7:5
Dec 11 06:01:05.325 INFO [stderr]   |
Dec 11 06:01:05.325 INFO [stderr] 7 |     pub fn new(m: Vec<Vec<f32>>) -> Matrix {
Dec 11 06:01:05.325 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 06:01:05.325 INFO [stderr] 
Dec 11 06:01:05.325 INFO [stderr] warning: constant item is never used: `ZERO_VECTOR`
Dec 11 06:01:05.325 INFO [stderr]   --> src/point.rs:7:1
Dec 11 06:01:05.325 INFO [stderr]    |
Dec 11 06:01:05.325 INFO [stderr] 7  | / const ZERO_VECTOR: Tuple = Tuple {
Dec 11 06:01:05.325 INFO [stderr] 8  | |     x: 0.,
Dec 11 06:01:05.325 INFO [stderr] 9  | |     y: 0.,
Dec 11 06:01:05.325 INFO [stderr] 10 | |     z: 0.,
Dec 11 06:01:05.325 INFO [stderr] 11 | |     w: 0.,
Dec 11 06:01:05.325 INFO [stderr] 12 | | };
Dec 11 06:01:05.325 INFO [stderr]    | |__^
Dec 11 06:01:05.325 INFO [stderr] 
Dec 11 06:01:05.325 INFO [stderr] warning: method is never used: `is_vector`
Dec 11 06:01:05.325 INFO [stderr]   --> src/point.rs:27:5
Dec 11 06:01:05.325 INFO [stderr]    |
Dec 11 06:01:05.325 INFO [stderr] 27 |     pub fn is_vector(&self) -> bool {
Dec 11 06:01:05.325 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 06:01:05.325 INFO [stderr] 
Dec 11 06:01:05.325 INFO [stderr] warning: method is never used: `is_point`
Dec 11 06:01:05.325 INFO [stderr]   --> src/point.rs:31:5
Dec 11 06:01:05.325 INFO [stderr]    |
Dec 11 06:01:05.325 INFO [stderr] 31 |     pub fn is_point(&self) -> bool {
Dec 11 06:01:05.325 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 06:01:05.325 INFO [stderr] 
Dec 11 06:01:05.325 INFO [stderr] warning: method is never used: `negate`
Dec 11 06:01:05.325 INFO [stderr]   --> src/point.rs:53:5
Dec 11 06:01:05.325 INFO [stderr]    |
Dec 11 06:01:05.325 INFO [stderr] 53 |     pub fn negate(self) -> Tuple {
Dec 11 06:01:05.325 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 06:01:05.325 INFO [stderr] 
Dec 11 06:01:05.325 INFO [stderr] warning: method is never used: `magnitude`
Dec 11 06:01:05.325 INFO [stderr]   --> src/point.rs:57:5
Dec 11 06:01:05.325 INFO [stderr]    |
Dec 11 06:01:05.325 INFO [stderr] 57 |     pub fn magnitude(&self) -> f32 {
Dec 11 06:01:05.325 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 06:01:05.325 INFO [stderr] 
Dec 11 06:01:05.325 INFO [stderr] warning: method is never used: `normalize`
Dec 11 06:01:05.325 INFO [stderr]   --> src/point.rs:61:5
Dec 11 06:01:05.325 INFO [stderr]    |
Dec 11 06:01:05.325 INFO [stderr] 61 |     pub fn normalize(&self) -> Tuple {
Dec 11 06:01:05.325 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 06:01:05.325 INFO [stderr] 
Dec 11 06:01:05.325 INFO [stderr] warning: method is never used: `dot`
Dec 11 06:01:05.325 INFO [stderr]   --> src/point.rs:72:5
Dec 11 06:01:05.325 INFO [stderr]    |
Dec 11 06:01:05.325 INFO [stderr] 72 |     pub fn dot(&self, other: Tuple) -> f32 {
Dec 11 06:01:05.325 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 06:01:05.325 INFO [stderr] 
Dec 11 06:01:05.325 INFO [stderr] warning: method is never used: `cross`
Dec 11 06:01:05.325 INFO [stderr]   --> src/point.rs:76:5
Dec 11 06:01:05.325 INFO [stderr]    |
Dec 11 06:01:05.325 INFO [stderr] 76 |     pub fn cross(&self, other: Tuple) -> Tuple {
Dec 11 06:01:05.325 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 06:01:05.325 INFO [stderr] 
Dec 11 06:01:05.594 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.77s
Dec 11 06:01:05.600 INFO [stderr] su: No module specific data is present
Dec 11 06:01:05.867 INFO running `"docker" "inspect" "3bc01a6683834f28af2b90767222b37e31a6c717779053e8cd06a0816d03777d"`
Dec 11 06:01:05.927 INFO running `"docker" "rm" "-f" "3bc01a6683834f28af2b90767222b37e31a6c717779053e8cd06a0816d03777d"`
Dec 11 06:01:06.004 INFO [stdout] 3bc01a6683834f28af2b90767222b37e31a6c717779053e8cd06a0816d03777d