[INFO] updating cached repository Adam-Gleave/tracer-rs
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/Adam-Gleave/tracer-rs
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/Adam-Gleave/tracer-rs" "work/ex/pr-62181/sources/master#6ea4036cd20a4b1ab1d56e555108c21735ff6946/gh/Adam-Gleave/tracer-rs"`
[INFO] [stderr] Cloning into 'work/ex/pr-62181/sources/master#6ea4036cd20a4b1ab1d56e555108c21735ff6946/gh/Adam-Gleave/tracer-rs'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/Adam-Gleave/tracer-rs" "work/ex/pr-62181/sources/try#003a7b6b5753e8509fdfe7949d4f0873ba71e4fc/gh/Adam-Gleave/tracer-rs"`
[INFO] [stderr] Cloning into 'work/ex/pr-62181/sources/try#003a7b6b5753e8509fdfe7949d4f0873ba71e4fc/gh/Adam-Gleave/tracer-rs'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] f05cc9dd359ddde9ea92e4f7966e7cdad4dc2431
[INFO] sha for GitHub repo Adam-Gleave/tracer-rs: f05cc9dd359ddde9ea92e4f7966e7cdad4dc2431
[INFO] validating manifest of Adam-Gleave/tracer-rs on toolchain master#6ea4036cd20a4b1ab1d56e555108c21735ff6946
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+6ea4036cd20a4b1ab1d56e555108c21735ff6946-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of Adam-Gleave/tracer-rs on toolchain try#003a7b6b5753e8509fdfe7949d4f0873ba71e4fc
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+003a7b6b5753e8509fdfe7949d4f0873ba71e4fc-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing Adam-Gleave/tracer-rs
[INFO] finished frobbing Adam-Gleave/tracer-rs
[INFO] frobbed toml for Adam-Gleave/tracer-rs written to work/ex/pr-62181/sources/master#6ea4036cd20a4b1ab1d56e555108c21735ff6946/gh/Adam-Gleave/tracer-rs/Cargo.toml
[INFO] started frobbing Adam-Gleave/tracer-rs
[INFO] finished frobbing Adam-Gleave/tracer-rs
[INFO] frobbed toml for Adam-Gleave/tracer-rs written to work/ex/pr-62181/sources/try#003a7b6b5753e8509fdfe7949d4f0873ba71e4fc/gh/Adam-Gleave/tracer-rs/Cargo.toml
[INFO] crate Adam-Gleave/tracer-rs already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+6ea4036cd20a4b1ab1d56e555108c21735ff6946-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+003a7b6b5753e8509fdfe7949d4f0873ba71e4fc-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] checking Adam-Gleave/tracer-rs against master#6ea4036cd20a4b1ab1d56e555108c21735ff6946 for pr-62181
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-62181/worker-1/master#6ea4036cd20a4b1ab1d56e555108c21735ff6946:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-62181/sources/master#6ea4036cd20a4b1ab1d56e555108c21735ff6946/gh/Adam-Gleave/tracer-rs:/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" "+6ea4036cd20a4b1ab1d56e555108c21735ff6946-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 8704da63d65249a5581fa1d307bb89db60185591727b97ebe5c2edd9cca6a37e
[INFO] running `"docker" "start" "-a" "8704da63d65249a5581fa1d307bb89db60185591727b97ebe5c2edd9cca6a37e"`
[INFO] [stderr]     Checking rand v0.4.2
[INFO] [stderr]     Checking num-complex v0.1.43
[INFO] [stderr]     Checking num-bigint v0.1.44
[INFO] [stderr]     Checking num-rational v0.1.42
[INFO] [stderr]     Checking num v0.1.42
[INFO] [stderr]     Checking coord v0.11.0
[INFO] [stderr]     Checking tracer-rs v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unnecessary parentheses around assigned value
[INFO] [stderr]   --> src/ray.rs:41:28
[INFO] [stderr]    |
[INFO] [stderr] 41 |             let mut temp = ((-b - discriminant.sqrt()) /a );
[INFO] [stderr]    |                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_parens)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around assigned value
[INFO] [stderr]   --> src/ray.rs:49:20
[INFO] [stderr]    |
[INFO] [stderr] 49 |             temp = ((-b + discriminant.sqrt()) / a);
[INFO] [stderr]    |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `ray::Ray`
[INFO] [stderr]  --> src/render.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use ray::Ray;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around assigned value
[INFO] [stderr]   --> src/ray.rs:41:28
[INFO] [stderr]    |
[INFO] [stderr] 41 |             let mut temp = ((-b - discriminant.sqrt()) /a );
[INFO] [stderr]    |                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_parens)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around assigned value
[INFO] [stderr]   --> src/ray.rs:49:20
[INFO] [stderr]    |
[INFO] [stderr] 49 |             temp = ((-b + discriminant.sqrt()) / a);
[INFO] [stderr]    |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `ray::Ray`
[INFO] [stderr]  --> src/render.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use ray::Ray;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `s`
[INFO] [stderr]   --> src/render.rs:48:29
[INFO] [stderr]    |
[INFO] [stderr] 48 |                         for s in 0..SAMPLES {
[INFO] [stderr]    |                             ^ help: consider prefixing with an underscore: `_s`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/scene.rs:67:5
[INFO] [stderr]    |
[INFO] [stderr] 67 |     pub fn new() -> Scene {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `add_sphere`
[INFO] [stderr]   --> src/scene.rs:73:5
[INFO] [stderr]    |
[INFO] [stderr] 73 |     pub fn add_sphere(&mut self, in_radius: f32, in_origin: Vec3<f32>) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/render.rs:23:5
[INFO] [stderr]    |
[INFO] [stderr] 23 |     pub fn new() -> Renderer {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new_from_scene`
[INFO] [stderr]   --> src/render.rs:29:5
[INFO] [stderr]    |
[INFO] [stderr] 29 |     pub fn new_from_scene(in_scene: Scene) -> Renderer {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `switch_scene`
[INFO] [stderr]   --> src/render.rs:35:5
[INFO] [stderr]    |
[INFO] [stderr] 35 |     pub fn switch_scene(&mut self, in_scene: Scene) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: the feature `extern_prelude` has been stable since 1.30.0 and no longer requires an attribute to enable
[INFO] [stderr]  --> src/main.rs:1:12
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(extern_prelude)]
[INFO] [stderr]   |            ^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(stable_features)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `s`
[INFO] [stderr]   --> src/render.rs:48:29
[INFO] [stderr]    |
[INFO] [stderr] 48 |                         for s in 0..SAMPLES {
[INFO] [stderr]    |                             ^ help: consider prefixing with an underscore: `_s`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/scene.rs:67:5
[INFO] [stderr]    |
[INFO] [stderr] 67 |     pub fn new() -> Scene {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `add_sphere`
[INFO] [stderr]   --> src/scene.rs:73:5
[INFO] [stderr]    |
[INFO] [stderr] 73 |     pub fn add_sphere(&mut self, in_radius: f32, in_origin: Vec3<f32>) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/render.rs:23:5
[INFO] [stderr]    |
[INFO] [stderr] 23 |     pub fn new() -> Renderer {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new_from_scene`
[INFO] [stderr]   --> src/render.rs:29:5
[INFO] [stderr]    |
[INFO] [stderr] 29 |     pub fn new_from_scene(in_scene: Scene) -> Renderer {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `switch_scene`
[INFO] [stderr]   --> src/render.rs:35:5
[INFO] [stderr]    |
[INFO] [stderr] 35 |     pub fn switch_scene(&mut self, in_scene: Scene) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: the feature `extern_prelude` has been stable since 1.30.0 and no longer requires an attribute to enable
[INFO] [stderr]  --> src/main.rs:1:12
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(extern_prelude)]
[INFO] [stderr]   |            ^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(stable_features)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.66s
[INFO] running `"docker" "inspect" "8704da63d65249a5581fa1d307bb89db60185591727b97ebe5c2edd9cca6a37e"`
[INFO] running `"docker" "rm" "-f" "8704da63d65249a5581fa1d307bb89db60185591727b97ebe5c2edd9cca6a37e"`
[INFO] [stdout] 8704da63d65249a5581fa1d307bb89db60185591727b97ebe5c2edd9cca6a37e