[INFO] updating cached repository ericlass/xtracer
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/ericlass/xtracer
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/ericlass/xtracer" "work/ex/beta-1.38-1/sources/1.37.0/gh/ericlass/xtracer"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/ericlass/xtracer'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/ericlass/xtracer" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/ericlass/xtracer"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/ericlass/xtracer'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] b7fb23bef8221a0a0d65a6e2e3710843a81f34e4
[INFO] sha for GitHub repo ericlass/xtracer: b7fb23bef8221a0a0d65a6e2e3710843a81f34e4
[INFO] validating manifest of ericlass/xtracer on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of ericlass/xtracer on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing ericlass/xtracer
[INFO] finished frobbing ericlass/xtracer
[INFO] frobbed toml for ericlass/xtracer written to work/ex/beta-1.38-1/sources/1.37.0/gh/ericlass/xtracer/Cargo.toml
[INFO] started frobbing ericlass/xtracer
[INFO] finished frobbing ericlass/xtracer
[INFO] frobbed toml for ericlass/xtracer written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/ericlass/xtracer/Cargo.toml
[INFO] crate ericlass/xtracer already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing ericlass/xtracer against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/ericlass/xtracer:/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=warn" "-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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] d72130ceb85ef599d5647d5b34fd0d65bf22ad024068166b3e71a0ebb9893aa1
[INFO] running `"docker" "start" "-a" "d72130ceb85ef599d5647d5b34fd0d65bf22ad024068166b3e71a0ebb9893aa1"`
[INFO] [stderr]    Compiling rand_xorshift v0.1.0
[INFO] [stderr]    Compiling rand_isaac v0.1.1
[INFO] [stderr]    Compiling rand_hc v0.1.0
[INFO] [stderr]    Compiling rand_chacha v0.1.0
[INFO] [stderr]    Compiling rand_pcg v0.1.1
[INFO] [stderr]    Compiling rand v0.6.1
[INFO] [stderr]    Compiling xtracer v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/settings.rs:171:45
[INFO] [stderr]     |
[INFO] [stderr] 171 |     pub fn objects<'a>(&'a self) -> Vec<&'a Intersectable> {
[INFO] [stderr]     |                                             ^^^^^^^^^^^^^ help: use `dyn`: `dyn Intersectable`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/settings.rs:174:32
[INFO] [stderr]     |
[INFO] [stderr] 174 |             result.push(sp as &Intersectable);
[INFO] [stderr]     |                                ^^^^^^^^^^^^^ help: use `dyn`: `dyn Intersectable`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/settings.rs:177:34
[INFO] [stderr]     |
[INFO] [stderr] 177 |             result.push(mesh as &Intersectable);
[INFO] [stderr]     |                                  ^^^^^^^^^^^^^ help: use `dyn`: `dyn Intersectable`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/settings.rs:180:33
[INFO] [stderr]     |
[INFO] [stderr] 180 |             result.push(vox as &Intersectable);
[INFO] [stderr]     |                                 ^^^^^^^^^^^^^ help: use `dyn`: `dyn Intersectable`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:263:23
[INFO] [stderr]     |
[INFO] [stderr] 263 |     objects: &'a Vec<&Intersectable>,
[INFO] [stderr]     |                       ^^^^^^^^^^^^^ help: use `dyn`: `dyn Intersectable`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:264:40
[INFO] [stderr]     |
[INFO] [stderr] 264 | ) -> (Option<Intersection>, Option<&'a Intersectable>) {
[INFO] [stderr]     |                                        ^^^^^^^^^^^^^ help: use `dyn`: `dyn Intersectable`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:289:73
[INFO] [stderr]     |
[INFO] [stderr] 289 | fn intersect_any(ray_org: &Vector4F, ray_dir: &Vector4F, objects: &Vec<&Intersectable>) -> bool {
[INFO] [stderr]     |                                                                         ^^^^^^^^^^^^^ help: use `dyn`: `dyn Intersectable`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `vdir`
[INFO] [stderr]    --> src/main.rs:322:13
[INFO] [stderr]     |
[INFO] [stderr] 322 |         let vdir = (ray_org - &inter.pos).normalize();
[INFO] [stderr]     |             ^^^^ help: consider prefixing with an underscore: `_vdir`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `xt` is never read
[INFO] [stderr]    --> src/linear.rs:628:13
[INFO] [stderr]     |
[INFO] [stderr] 628 |     let mut xt = 0.0;
[INFO] [stderr]     |             ^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_assignments)] on by default
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `yt` is never read
[INFO] [stderr]    --> src/linear.rs:652:13
[INFO] [stderr]     |
[INFO] [stderr] 652 |     let mut yt = 0.0;
[INFO] [stderr]     |             ^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `zt` is never read
[INFO] [stderr]    --> src/linear.rs:676:13
[INFO] [stderr]     |
[INFO] [stderr] 676 |     let mut zt = 0.0;
[INFO] [stderr]     |             ^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `x`
[INFO] [stderr]    --> src/settings.rs:250:17
[INFO] [stderr]     |
[INFO] [stderr] 250 |         let mut x: i32;
[INFO] [stderr]     |                 ^ help: consider prefixing with an underscore: `_x`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `y`
[INFO] [stderr]    --> src/settings.rs:251:17
[INFO] [stderr]     |
[INFO] [stderr] 251 |         let mut y: i32;
[INFO] [stderr]     |                 ^ help: consider prefixing with an underscore: `_y`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `z`
[INFO] [stderr]    --> src/settings.rs:252:17
[INFO] [stderr]     |
[INFO] [stderr] 252 |         let mut z: i32;
[INFO] [stderr]     |                 ^ help: consider prefixing with an underscore: `_z`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `min_t`
[INFO] [stderr]    --> src/settings.rs:232:59
[INFO] [stderr]     |
[INFO] [stderr] 232 |     fn intersect(&self, rorg: &Vector4F, rdir: &Vector4F, min_t: f64) -> Option<Intersection> {
[INFO] [stderr]     |                                                           ^^^^^ help: consider prefixing with an underscore: `_min_t`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `alb`
[INFO] [stderr]   --> src/shade.rs:23:79
[INFO] [stderr]    |
[INFO] [stderr] 23 | pub fn shade_oren_nayar(l: &Vector4F, n: &Vector4F, v: &Vector4F, rough: f64, alb: f64) -> f64 {
[INFO] [stderr]    |                                                                               ^^^ help: consider prefixing with an underscore: `_alb`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]   --> src/vox.rs:95:9
[INFO] [stderr]    |
[INFO] [stderr] 95 |     for i in 0..num_voxels {
[INFO] [stderr]    |         ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/settings.rs:746:17
[INFO] [stderr]     |
[INFO] [stderr] 746 |             let mut m = Mesh {
[INFO] [stderr]     |                 ----^
[INFO] [stderr]     |                 |
[INFO] [stderr]     |                 help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/settings.rs:830:17
[INFO] [stderr]     |
[INFO] [stderr] 830 |             let mut v = Voxels {
[INFO] [stderr]     |                 ----^
[INFO] [stderr]     |                 |
[INFO] [stderr]     |                 help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `intersect_ray_aabb`
[INFO] [stderr]    --> src/linear.rs:798:1
[INFO] [stderr]     |
[INFO] [stderr] 798 | / pub fn intersect_ray_aabb(
[INFO] [stderr] 799 | |     rorg: &Vector4F,
[INFO] [stderr] 800 | |     rdir: &Vector4F,
[INFO] [stderr] 801 | |     min: &Vector4F,
[INFO] [stderr] ...   |
[INFO] [stderr] 872 | |     Some(result)
[INFO] [stderr] 873 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `point_in_aabb`
[INFO] [stderr]    --> src/linear.rs:934:1
[INFO] [stderr]     |
[INFO] [stderr] 934 | pub fn point_in_aabb(p: &Vector4F, min: &Vector4F, max: &Vector4F) -> bool {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `rand_seed`
[INFO] [stderr]  --> src/random.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 |     rand_seed: u32,
[INFO] [stderr]   |     ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `random`
[INFO] [stderr]   --> src/random.rs:16:5
[INFO] [stderr]    |
[INFO] [stderr] 16 |     pub fn random(&mut self) -> u32 {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `random_direction`
[INFO] [stderr]   --> src/random.rs:41:5
[INFO] [stderr]    |
[INFO] [stderr] 41 |     pub fn random_direction(&mut self) -> Vector4F {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `get_max_element`
[INFO] [stderr]    --> src/settings.rs:476:1
[INFO] [stderr]     |
[INFO] [stderr] 476 | fn get_max_element(org: f64, dir: f64, out: f64) -> f64 {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `PI`
[INFO] [stderr]  --> src/shade.rs:3:1
[INFO] [stderr]   |
[INFO] [stderr] 3 | const PI: f64 = 3.1415926535897932384626433;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `E`
[INFO] [stderr]  --> src/shade.rs:4:1
[INFO] [stderr]   |
[INFO] [stderr] 4 | const E: f64 = 2.718281828459045;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `saturate`
[INFO] [stderr]   --> src/shade.rs:10:1
[INFO] [stderr]    |
[INFO] [stderr] 10 | fn saturate(v: f64) -> f64 {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `shade_oren_nayar`
[INFO] [stderr]   --> src/shade.rs:23:1
[INFO] [stderr]    |
[INFO] [stderr] 23 | pub fn shade_oren_nayar(l: &Vector4F, n: &Vector4F, v: &Vector4F, rough: f64, alb: f64) -> f64 {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `beckmann`
[INFO] [stderr]   --> src/shade.rs:65:1
[INFO] [stderr]    |
[INFO] [stderr] 65 | fn beckmann(x: f64, rough: f64) -> f64 {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `shade_cook_torrance`
[INFO] [stderr]   --> src/shade.rs:75:1
[INFO] [stderr]    |
[INFO] [stderr] 75 | / pub fn shade_cook_torrance(
[INFO] [stderr] 76 | |     l: &Vector4F,
[INFO] [stderr] 77 | |     v: &Vector4F,
[INFO] [stderr] 78 | |     n: &Vector4F,
[INFO] [stderr] ...  |
[INFO] [stderr] 95 | |     g * f * d / f64::max(PI * vdotn * ldotn, 0.000001)
[INFO] [stderr] 96 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.62s
[INFO] running `"docker" "inspect" "d72130ceb85ef599d5647d5b34fd0d65bf22ad024068166b3e71a0ebb9893aa1"`
[INFO] running `"docker" "rm" "-f" "d72130ceb85ef599d5647d5b34fd0d65bf22ad024068166b3e71a0ebb9893aa1"`
[INFO] [stdout] d72130ceb85ef599d5647d5b34fd0d65bf22ad024068166b3e71a0ebb9893aa1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/ericlass/xtracer:/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=warn" "-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" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] ddd21f94909611af89c02d1e6fa4ef61a43f4ff9f5360a0f7f47f915c764aa4e
[INFO] running `"docker" "start" "-a" "ddd21f94909611af89c02d1e6fa4ef61a43f4ff9f5360a0f7f47f915c764aa4e"`
[INFO] [stderr]    Compiling xtracer v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/settings.rs:171:45
[INFO] [stderr]     |
[INFO] [stderr] 171 |     pub fn objects<'a>(&'a self) -> Vec<&'a Intersectable> {
[INFO] [stderr]     |                                             ^^^^^^^^^^^^^ help: use `dyn`: `dyn Intersectable`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/settings.rs:174:32
[INFO] [stderr]     |
[INFO] [stderr] 174 |             result.push(sp as &Intersectable);
[INFO] [stderr]     |                                ^^^^^^^^^^^^^ help: use `dyn`: `dyn Intersectable`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/settings.rs:177:34
[INFO] [stderr]     |
[INFO] [stderr] 177 |             result.push(mesh as &Intersectable);
[INFO] [stderr]     |                                  ^^^^^^^^^^^^^ help: use `dyn`: `dyn Intersectable`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/settings.rs:180:33
[INFO] [stderr]     |
[INFO] [stderr] 180 |             result.push(vox as &Intersectable);
[INFO] [stderr]     |                                 ^^^^^^^^^^^^^ help: use `dyn`: `dyn Intersectable`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:263:23
[INFO] [stderr]     |
[INFO] [stderr] 263 |     objects: &'a Vec<&Intersectable>,
[INFO] [stderr]     |                       ^^^^^^^^^^^^^ help: use `dyn`: `dyn Intersectable`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:264:40
[INFO] [stderr]     |
[INFO] [stderr] 264 | ) -> (Option<Intersection>, Option<&'a Intersectable>) {
[INFO] [stderr]     |                                        ^^^^^^^^^^^^^ help: use `dyn`: `dyn Intersectable`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:289:73
[INFO] [stderr]     |
[INFO] [stderr] 289 | fn intersect_any(ray_org: &Vector4F, ray_dir: &Vector4F, objects: &Vec<&Intersectable>) -> bool {
[INFO] [stderr]     |                                                                         ^^^^^^^^^^^^^ help: use `dyn`: `dyn Intersectable`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `vdir`
[INFO] [stderr]    --> src/main.rs:322:13
[INFO] [stderr]     |
[INFO] [stderr] 322 |         let vdir = (ray_org - &inter.pos).normalize();
[INFO] [stderr]     |             ^^^^ help: consider prefixing with an underscore: `_vdir`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `xt` is never read
[INFO] [stderr]    --> src/linear.rs:628:13
[INFO] [stderr]     |
[INFO] [stderr] 628 |     let mut xt = 0.0;
[INFO] [stderr]     |             ^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_assignments)] on by default
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `yt` is never read
[INFO] [stderr]    --> src/linear.rs:652:13
[INFO] [stderr]     |
[INFO] [stderr] 652 |     let mut yt = 0.0;
[INFO] [stderr]     |             ^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `zt` is never read
[INFO] [stderr]    --> src/linear.rs:676:13
[INFO] [stderr]     |
[INFO] [stderr] 676 |     let mut zt = 0.0;
[INFO] [stderr]     |             ^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `x`
[INFO] [stderr]    --> src/settings.rs:250:17
[INFO] [stderr]     |
[INFO] [stderr] 250 |         let mut x: i32;
[INFO] [stderr]     |                 ^ help: consider prefixing with an underscore: `_x`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `y`
[INFO] [stderr]    --> src/settings.rs:251:17
[INFO] [stderr]     |
[INFO] [stderr] 251 |         let mut y: i32;
[INFO] [stderr]     |                 ^ help: consider prefixing with an underscore: `_y`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `z`
[INFO] [stderr]    --> src/settings.rs:252:17
[INFO] [stderr]     |
[INFO] [stderr] 252 |         let mut z: i32;
[INFO] [stderr]     |                 ^ help: consider prefixing with an underscore: `_z`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `min_t`
[INFO] [stderr]    --> src/settings.rs:232:59
[INFO] [stderr]     |
[INFO] [stderr] 232 |     fn intersect(&self, rorg: &Vector4F, rdir: &Vector4F, min_t: f64) -> Option<Intersection> {
[INFO] [stderr]     |                                                           ^^^^^ help: consider prefixing with an underscore: `_min_t`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `alb`
[INFO] [stderr]   --> src/shade.rs:23:79
[INFO] [stderr]    |
[INFO] [stderr] 23 | pub fn shade_oren_nayar(l: &Vector4F, n: &Vector4F, v: &Vector4F, rough: f64, alb: f64) -> f64 {
[INFO] [stderr]    |                                                                               ^^^ help: consider prefixing with an underscore: `_alb`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]   --> src/vox.rs:95:9
[INFO] [stderr]    |
[INFO] [stderr] 95 |     for i in 0..num_voxels {
[INFO] [stderr]    |         ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/settings.rs:746:17
[INFO] [stderr]     |
[INFO] [stderr] 746 |             let mut m = Mesh {
[INFO] [stderr]     |                 ----^
[INFO] [stderr]     |                 |
[INFO] [stderr]     |                 help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/settings.rs:830:17
[INFO] [stderr]     |
[INFO] [stderr] 830 |             let mut v = Voxels {
[INFO] [stderr]     |                 ----^
[INFO] [stderr]     |                 |
[INFO] [stderr]     |                 help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `intersect_ray_aabb`
[INFO] [stderr]    --> src/linear.rs:798:1
[INFO] [stderr]     |
[INFO] [stderr] 798 | / pub fn intersect_ray_aabb(
[INFO] [stderr] 799 | |     rorg: &Vector4F,
[INFO] [stderr] 800 | |     rdir: &Vector4F,
[INFO] [stderr] 801 | |     min: &Vector4F,
[INFO] [stderr] ...   |
[INFO] [stderr] 872 | |     Some(result)
[INFO] [stderr] 873 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `point_in_aabb`
[INFO] [stderr]    --> src/linear.rs:934:1
[INFO] [stderr]     |
[INFO] [stderr] 934 | pub fn point_in_aabb(p: &Vector4F, min: &Vector4F, max: &Vector4F) -> bool {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `rand_seed`
[INFO] [stderr]  --> src/random.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 |     rand_seed: u32,
[INFO] [stderr]   |     ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `random`
[INFO] [stderr]   --> src/random.rs:16:5
[INFO] [stderr]    |
[INFO] [stderr] 16 |     pub fn random(&mut self) -> u32 {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `random_direction`
[INFO] [stderr]   --> src/random.rs:41:5
[INFO] [stderr]    |
[INFO] [stderr] 41 |     pub fn random_direction(&mut self) -> Vector4F {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `get_max_element`
[INFO] [stderr]    --> src/settings.rs:476:1
[INFO] [stderr]     |
[INFO] [stderr] 476 | fn get_max_element(org: f64, dir: f64, out: f64) -> f64 {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `PI`
[INFO] [stderr]  --> src/shade.rs:3:1
[INFO] [stderr]   |
[INFO] [stderr] 3 | const PI: f64 = 3.1415926535897932384626433;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `E`
[INFO] [stderr]  --> src/shade.rs:4:1
[INFO] [stderr]   |
[INFO] [stderr] 4 | const E: f64 = 2.718281828459045;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `saturate`
[INFO] [stderr]   --> src/shade.rs:10:1
[INFO] [stderr]    |
[INFO] [stderr] 10 | fn saturate(v: f64) -> f64 {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `shade_oren_nayar`
[INFO] [stderr]   --> src/shade.rs:23:1
[INFO] [stderr]    |
[INFO] [stderr] 23 | pub fn shade_oren_nayar(l: &Vector4F, n: &Vector4F, v: &Vector4F, rough: f64, alb: f64) -> f64 {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `beckmann`
[INFO] [stderr]   --> src/shade.rs:65:1
[INFO] [stderr]    |
[INFO] [stderr] 65 | fn beckmann(x: f64, rough: f64) -> f64 {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `shade_cook_torrance`
[INFO] [stderr]   --> src/shade.rs:75:1
[INFO] [stderr]    |
[INFO] [stderr] 75 | / pub fn shade_cook_torrance(
[INFO] [stderr] 76 | |     l: &Vector4F,
[INFO] [stderr] 77 | |     v: &Vector4F,
[INFO] [stderr] 78 | |     n: &Vector4F,
[INFO] [stderr] ...  |
[INFO] [stderr] 95 | |     g * f * d / f64::max(PI * vdotn * ldotn, 0.000001)
[INFO] [stderr] 96 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.87s
[INFO] running `"docker" "inspect" "ddd21f94909611af89c02d1e6fa4ef61a43f4ff9f5360a0f7f47f915c764aa4e"`
[INFO] running `"docker" "rm" "-f" "ddd21f94909611af89c02d1e6fa4ef61a43f4ff9f5360a0f7f47f915c764aa4e"`
[INFO] [stdout] ddd21f94909611af89c02d1e6fa4ef61a43f4ff9f5360a0f7f47f915c764aa4e
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/ericlass/xtracer:/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=warn" "-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" "+1.37.0" "test" "--frozen"`
[INFO] [stdout] cd88056bd8936b0d1796cac5c643820f05dff7fb1a66c8fbbcec8e6ea918c7e7
[INFO] running `"docker" "start" "-a" "cd88056bd8936b0d1796cac5c643820f05dff7fb1a66c8fbbcec8e6ea918c7e7"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/xtracer-570aaeb2ac36a163
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "cd88056bd8936b0d1796cac5c643820f05dff7fb1a66c8fbbcec8e6ea918c7e7"`
[INFO] running `"docker" "rm" "-f" "cd88056bd8936b0d1796cac5c643820f05dff7fb1a66c8fbbcec8e6ea918c7e7"`
[INFO] [stdout] cd88056bd8936b0d1796cac5c643820f05dff7fb1a66c8fbbcec8e6ea918c7e7