Dec 19 11:04:35.804 INFO checking pfeff/raytrace against master#d99a320cba42f661aebfa1293b7b2ec3603dda75 for pr-56955
Dec 19 11:04:35.804 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-2/master#d99a320cba42f661aebfa1293b7b2ec3603dda75:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/master#d99a320cba42f661aebfa1293b7b2ec3603dda75/gh/pfeff/raytrace:/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 11:04:36.204 INFO [stdout] 991ac2a2567f384eb5588c804be99f2abf6fc9273247bce078c3007e9e20ab8b
Dec 19 11:04:36.206 INFO running `"docker" "start" "-a" "991ac2a2567f384eb5588c804be99f2abf6fc9273247bce078c3007e9e20ab8b"`
Dec 19 11:04:38.313 INFO [stderr]     Checking assert_approx_eq v1.0.0
Dec 19 11:04:38.581 INFO [stderr]     Checking raytrace v0.1.0 (/opt/crater/workdir)
Dec 19 11:04:38.904 INFO [stderr] warning: unused import: `color`
Dec 19 11:04:38.904 INFO [stderr]  --> src/canvas.rs:1:13
Dec 19 11:04:38.904 INFO [stderr]   |
Dec 19 11:04:38.904 INFO [stderr] 1 | use color::{color, white};
Dec 19 11:04:38.904 INFO [stderr]   |             ^^^^^
Dec 19 11:04:38.904 INFO [stderr]   |
Dec 19 11:04:38.904 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 19 11:04:38.904 INFO [stderr] 
Dec 19 11:04:39.105 INFO [stderr] warning: method is never used: `is_point`
Dec 19 11:04:39.105 INFO [stderr]   --> src/tuple.rs:51:5
Dec 19 11:04:39.105 INFO [stderr]    |
Dec 19 11:04:39.105 INFO [stderr] 51 |     pub fn is_point(&self) -> bool {
Dec 19 11:04:39.105 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 11:04:39.105 INFO [stderr]    |
Dec 19 11:04:39.105 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 19 11:04:39.105 INFO [stderr] 
Dec 19 11:04:39.105 INFO [stderr] warning: method is never used: `is_vector`
Dec 19 11:04:39.105 INFO [stderr]   --> src/tuple.rs:56:5
Dec 19 11:04:39.105 INFO [stderr]    |
Dec 19 11:04:39.105 INFO [stderr] 56 |     pub fn is_vector(&self) -> bool {
Dec 19 11:04:39.105 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 11:04:39.105 INFO [stderr] 
Dec 19 11:04:39.105 INFO [stderr] warning: function is never used: `point`
Dec 19 11:04:39.105 INFO [stderr]    --> src/tuple.rs:143:1
Dec 19 11:04:39.105 INFO [stderr]     |
Dec 19 11:04:39.105 INFO [stderr] 143 | pub fn point(x: f64, y: f64, z: f64) -> Tuple {
Dec 19 11:04:39.105 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 11:04:39.105 INFO [stderr] 
Dec 19 11:04:39.105 INFO [stderr] warning: function is never used: `color`
Dec 19 11:04:39.105 INFO [stderr]  --> src/color.rs:9:1
Dec 19 11:04:39.105 INFO [stderr]   |
Dec 19 11:04:39.105 INFO [stderr] 9 | pub fn color(r: f64, g: f64, b: f64) -> Tuple {
Dec 19 11:04:39.105 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 11:04:39.105 INFO [stderr] 
Dec 19 11:04:39.105 INFO [stderr] warning: function is never used: `white`
Dec 19 11:04:39.105 INFO [stderr]   --> src/color.rs:13:1
Dec 19 11:04:39.105 INFO [stderr]    |
Dec 19 11:04:39.105 INFO [stderr] 13 | pub fn white() -> Tuple {
Dec 19 11:04:39.105 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 11:04:39.105 INFO [stderr] 
Dec 19 11:04:39.105 INFO [stderr] warning: struct is never constructed: `Canvas`
Dec 19 11:04:39.105 INFO [stderr]  --> src/canvas.rs:5:1
Dec 19 11:04:39.105 INFO [stderr]   |
Dec 19 11:04:39.105 INFO [stderr] 5 | pub struct Canvas {
Dec 19 11:04:39.105 INFO [stderr]   | ^^^^^^^^^^^^^^^^^
Dec 19 11:04:39.105 INFO [stderr] 
Dec 19 11:04:39.105 INFO [stderr] warning: method is never used: `pixel_at`
Dec 19 11:04:39.105 INFO [stderr]   --> src/canvas.rs:12:5
Dec 19 11:04:39.105 INFO [stderr]    |
Dec 19 11:04:39.105 INFO [stderr] 12 |     fn pixel_at(&self, x: usize, y: usize) -> Tuple {
Dec 19 11:04:39.105 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 11:04:39.105 INFO [stderr] 
Dec 19 11:04:39.105 INFO [stderr] warning: method is never used: `write_pixel`
Dec 19 11:04:39.105 INFO [stderr]   --> src/canvas.rs:16:5
Dec 19 11:04:39.105 INFO [stderr]    |
Dec 19 11:04:39.105 INFO [stderr] 16 |     fn write_pixel(&mut self, x: usize, y: usize, color: Tuple) {
Dec 19 11:04:39.105 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 11:04:39.105 INFO [stderr] 
Dec 19 11:04:39.105 INFO [stderr] warning: function is never used: `canvas`
Dec 19 11:04:39.105 INFO [stderr]   --> src/canvas.rs:22:1
Dec 19 11:04:39.105 INFO [stderr]    |
Dec 19 11:04:39.105 INFO [stderr] 22 | pub fn canvas(width: usize, height: usize) -> Canvas {
Dec 19 11:04:39.105 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 11:04:39.105 INFO [stderr] 
Dec 19 11:04:39.433 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.17s
Dec 19 11:04:40.468 INFO running `"docker" "inspect" "991ac2a2567f384eb5588c804be99f2abf6fc9273247bce078c3007e9e20ab8b"`
Dec 19 11:04:40.651 INFO running `"docker" "rm" "-f" "991ac2a2567f384eb5588c804be99f2abf6fc9273247bce078c3007e9e20ab8b"`
Dec 19 11:04:40.763 INFO [stdout] 991ac2a2567f384eb5588c804be99f2abf6fc9273247bce078c3007e9e20ab8b