[INFO] updating cached repository seenaburns/raytracer
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/seenaburns/raytracer
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/seenaburns/raytracer" "work/ex/pr-58948/sources/master#0f88167f89fffe321590c5148f21b7d51d44388d/gh/seenaburns/raytracer"`
[INFO] [stderr] Cloning into 'work/ex/pr-58948/sources/master#0f88167f89fffe321590c5148f21b7d51d44388d/gh/seenaburns/raytracer'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/seenaburns/raytracer" "work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/gh/seenaburns/raytracer"`
[INFO] [stderr] Cloning into 'work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/gh/seenaburns/raytracer'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 7da8434a5151bdb590e0763b0fd62ab95fa05cda
[INFO] sha for GitHub repo seenaburns/raytracer: 7da8434a5151bdb590e0763b0fd62ab95fa05cda
[INFO] validating manifest of seenaburns/raytracer on toolchain master#0f88167f89fffe321590c5148f21b7d51d44388d
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+0f88167f89fffe321590c5148f21b7d51d44388d-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of seenaburns/raytracer on toolchain try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing seenaburns/raytracer
[INFO] finished frobbing seenaburns/raytracer
[INFO] frobbed toml for seenaburns/raytracer written to work/ex/pr-58948/sources/master#0f88167f89fffe321590c5148f21b7d51d44388d/gh/seenaburns/raytracer/Cargo.toml
[INFO] started frobbing seenaburns/raytracer
[INFO] finished frobbing seenaburns/raytracer
[INFO] frobbed toml for seenaburns/raytracer written to work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/gh/seenaburns/raytracer/Cargo.toml
[INFO] crate seenaburns/raytracer already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+0f88167f89fffe321590c5148f21b7d51d44388d-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on the registry index
[INFO] checking seenaburns/raytracer against try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b for pr-58948
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-58948/worker-3/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/gh/seenaburns/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" "+a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] c96e324d5fdd823a09a838efd5d785eeec6bbabdee9fa2620e519786c093cc1e
[INFO] running `"docker" "start" "-a" "c96e324d5fdd823a09a838efd5d785eeec6bbabdee9fa2620e519786c093cc1e"`
[INFO] [stderr]     Checking num_cpus v1.6.2
[INFO] [stderr]     Checking png v0.8.0
[INFO] [stderr]     Checking rayon-core v1.2.1
[INFO] [stderr]     Checking rayon v0.8.2
[INFO] [stderr]     Checking jpeg-decoder v0.1.13
[INFO] [stderr]     Checking image v0.14.0
[INFO] [stderr]     Checking raytracer v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `rng`
[INFO] [stderr]    --> src/shader/material.rs:123:49
[INFO] [stderr]     |
[INFO] [stderr] 123 |     fn scatter(&self, r: &Ray, hit: &HitRecord, rng: &mut XorShiftRng) -> Option<(Vec3, Ray)> {
[INFO] [stderr]     |                                                 ^^^ help: consider prefixing with an underscore: `_rng`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `rng`
[INFO] [stderr]    --> src/shader/material.rs:161:51
[INFO] [stderr]     |
[INFO] [stderr] 161 |     fn scatter(&self, _r: &Ray, _hit: &HitRecord, rng: &mut XorShiftRng) -> Option<(Vec3, Ray)> {
[INFO] [stderr]     |                                                   ^^^ help: consider prefixing with an underscore: `_rng`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `u`
[INFO] [stderr]    --> src/shader/material.rs:179:23
[INFO] [stderr]     |
[INFO] [stderr] 179 |     fn emitted(&self, u: f64, v: f64, p: &Vec3) -> Option<Vec3> {
[INFO] [stderr]     |                       ^ help: consider prefixing with an underscore: `_u`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `v`
[INFO] [stderr]    --> src/shader/material.rs:179:31
[INFO] [stderr]     |
[INFO] [stderr] 179 |     fn emitted(&self, u: f64, v: f64, p: &Vec3) -> Option<Vec3> {
[INFO] [stderr]     |                               ^ help: consider prefixing with an underscore: `_v`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `p`
[INFO] [stderr]    --> src/shader/material.rs:179:39
[INFO] [stderr]     |
[INFO] [stderr] 179 |     fn emitted(&self, u: f64, v: f64, p: &Vec3) -> Option<Vec3> {
[INFO] [stderr]     |                                       ^ help: consider prefixing with an underscore: `_p`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `rng`
[INFO] [stderr]    --> src/shader/material.rs:123:49
[INFO] [stderr]     |
[INFO] [stderr] 123 |     fn scatter(&self, r: &Ray, hit: &HitRecord, rng: &mut XorShiftRng) -> Option<(Vec3, Ray)> {
[INFO] [stderr]     |                                                 ^^^ help: consider prefixing with an underscore: `_rng`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `rng`
[INFO] [stderr]    --> src/shader/material.rs:161:51
[INFO] [stderr]     |
[INFO] [stderr] 161 |     fn scatter(&self, _r: &Ray, _hit: &HitRecord, rng: &mut XorShiftRng) -> Option<(Vec3, Ray)> {
[INFO] [stderr]     |                                                   ^^^ help: consider prefixing with an underscore: `_rng`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `u`
[INFO] [stderr]    --> src/shader/material.rs:179:23
[INFO] [stderr]     |
[INFO] [stderr] 179 |     fn emitted(&self, u: f64, v: f64, p: &Vec3) -> Option<Vec3> {
[INFO] [stderr]     |                       ^ help: consider prefixing with an underscore: `_u`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `v`
[INFO] [stderr]    --> src/shader/material.rs:179:31
[INFO] [stderr]     |
[INFO] [stderr] 179 |     fn emitted(&self, u: f64, v: f64, p: &Vec3) -> Option<Vec3> {
[INFO] [stderr]     |                               ^ help: consider prefixing with an underscore: `_v`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `p`
[INFO] [stderr]    --> src/shader/material.rs:179:39
[INFO] [stderr]     |
[INFO] [stderr] 179 |     fn emitted(&self, u: f64, v: f64, p: &Vec3) -> Option<Vec3> {
[INFO] [stderr]     |                                       ^ help: consider prefixing with an underscore: `_p`
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/render.rs:106:13
[INFO] [stderr]     |
[INFO] [stderr] 106 |             writeln!(&mut ::std::io::stderr(), "Thread {} done", nth);
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_must_use)] on by default
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `test_perlin_generate`
[INFO] [stderr]    --> src/shader/texture.rs:254:5
[INFO] [stderr]     |
[INFO] [stderr] 254 |     fn test_perlin_generate() {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/render.rs:106:13
[INFO] [stderr]     |
[INFO] [stderr] 106 |             writeln!(&mut ::std::io::stderr(), "Thread {} done", nth);
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_must_use)] on by default
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `hitable`
[INFO] [stderr]  --> src/main.rs:7:24
[INFO] [stderr]   |
[INFO] [stderr] 7 | use raytracer::model::{hitable, Renderable, Model};
[INFO] [stderr]   |                        ^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `raytracer::model::sphere::Sphere`
[INFO] [stderr]   --> src/main.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 | use raytracer::model::sphere::Sphere;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `raytracer::model::constant_medium::ConstantMedium`
[INFO] [stderr]   --> src/main.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 | use raytracer::model::constant_medium::ConstantMedium;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `raytracer::shader::texture`
[INFO] [stderr]   --> src/main.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 | use raytracer::shader::texture;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `hitable`
[INFO] [stderr]  --> src/main.rs:7:24
[INFO] [stderr]   |
[INFO] [stderr] 7 | use raytracer::model::{hitable, Renderable, Model};
[INFO] [stderr]   |                        ^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `raytracer::model::sphere::Sphere`
[INFO] [stderr]   --> src/main.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 | use raytracer::model::sphere::Sphere;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `raytracer::model::constant_medium::ConstantMedium`
[INFO] [stderr]   --> src/main.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 | use raytracer::model::constant_medium::ConstantMedium;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `raytracer::shader::texture`
[INFO] [stderr]   --> src/main.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 | use raytracer::shader::texture;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `mat_iso`
[INFO] [stderr]   --> src/main.rs:88:9
[INFO] [stderr]    |
[INFO] [stderr] 88 |     let mat_iso   = Material::isotropic_constant(Vec3::new(1.0,1.0,1.0));
[INFO] [stderr]    |         ^^^^^^^ help: consider prefixing with an underscore: `_mat_iso`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `PNG`
[INFO] [stderr]    --> src/main.rs:194:5
[INFO] [stderr]     |
[INFO] [stderr] 194 |     PNG
[INFO] [stderr]     |     ^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `mat_iso`
[INFO] [stderr]   --> src/main.rs:88:9
[INFO] [stderr]    |
[INFO] [stderr] 88 |     let mat_iso   = Material::isotropic_constant(Vec3::new(1.0,1.0,1.0));
[INFO] [stderr]    |         ^^^^^^^ help: consider prefixing with an underscore: `_mat_iso`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `PNG`
[INFO] [stderr]    --> src/main.rs:194:5
[INFO] [stderr]     |
[INFO] [stderr] 194 |     PNG
[INFO] [stderr]     |     ^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.34s
[INFO] running `"docker" "inspect" "c96e324d5fdd823a09a838efd5d785eeec6bbabdee9fa2620e519786c093cc1e"`
[INFO] running `"docker" "rm" "-f" "c96e324d5fdd823a09a838efd5d785eeec6bbabdee9fa2620e519786c093cc1e"`
[INFO] [stdout] c96e324d5fdd823a09a838efd5d785eeec6bbabdee9fa2620e519786c093cc1e