[INFO] updating cached repository cobbal/rust-tracer
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/cobbal/rust-tracer
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/cobbal/rust-tracer" "work/ex/beta-1.38-1/sources/1.37.0/gh/cobbal/rust-tracer"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/cobbal/rust-tracer'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/cobbal/rust-tracer" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/cobbal/rust-tracer"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/cobbal/rust-tracer'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] b491fb688726f4ba49cf90aba4728a25555b2b46
[INFO] sha for GitHub repo cobbal/rust-tracer: b491fb688726f4ba49cf90aba4728a25555b2b46
[INFO] validating manifest of cobbal/rust-tracer 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 cobbal/rust-tracer 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 cobbal/rust-tracer
[INFO] finished frobbing cobbal/rust-tracer
[INFO] frobbed toml for cobbal/rust-tracer written to work/ex/beta-1.38-1/sources/1.37.0/gh/cobbal/rust-tracer/Cargo.toml
[INFO] started frobbing cobbal/rust-tracer
[INFO] finished frobbing cobbal/rust-tracer
[INFO] frobbed toml for cobbal/rust-tracer written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/cobbal/rust-tracer/Cargo.toml
[INFO] crate cobbal/rust-tracer 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 cobbal/rust-tracer against beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/cobbal/rust-tracer:/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" "+beta-2019-08-13" "build" "--frozen"`
[INFO] [stdout] 2a9d28e47361a11a52d1a1333a10736b0c2690791d820c595f1b07f0515795c5
[INFO] running `"docker" "start" "-a" "2a9d28e47361a11a52d1a1333a10736b0c2690791d820c595f1b07f0515795c5"`
[INFO] [stderr]    Compiling scopeguard v0.3.2
[INFO] [stderr]    Compiling either v1.2.0
[INFO] [stderr]    Compiling num-bigint v0.1.40
[INFO] [stderr]    Compiling png v0.10.0
[INFO] [stderr]    Compiling coco v0.1.1
[INFO] [stderr]    Compiling rayon-core v1.2.1
[INFO] [stderr]    Compiling rayon v0.8.2
[INFO] [stderr]    Compiling num-rational v0.1.39
[INFO] [stderr]    Compiling num v0.1.40
[INFO] [stderr]    Compiling jpeg-decoder v0.1.13
[INFO] [stderr]    Compiling image v0.16.0
[INFO] [stderr]    Compiling rust-tracer v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stderr]  --> src/main.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(box_syntax)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stderr]  --> src/main.rs:2:1
[INFO] [stderr]   |
[INFO] [stderr] 2 | #![feature(box_patterns)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stderr]  --> src/main.rs:3:1
[INFO] [stderr]   |
[INFO] [stderr] 3 | #![feature(const_fn)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/material.rs:133:18
[INFO] [stderr]     |
[INFO] [stderr] 133 |         let m : &Material = if rng.gen::<f32>() < self.p {
[INFO] [stderr]     |                  ^^^^^^^^ help: use `dyn`: `dyn Material`
[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/object.rs:19:24
[INFO] [stderr]    |
[INFO] [stderr] 19 |     pub material : &'a Material,
[INFO] [stderr]    |                        ^^^^^^^^ help: use `dyn`: `dyn Material`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/object.rs:30:24
[INFO] [stderr]    |
[INFO] [stderr] 30 |     pub material : Arc<Material>,
[INFO] [stderr]    |                        ^^^^^^^^ help: use `dyn`: `dyn Material`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/object.rs:55:26
[INFO] [stderr]    |
[INFO] [stderr] 55 |           material : Arc<Material>,
[INFO] [stderr]    |                          ^^^^^^^^ help: use `dyn`: `dyn Material`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/object.rs:67:49
[INFO] [stderr]    |
[INFO] [stderr] 67 |     radius : f32, center : Vec3, material : Arc<Material>
[INFO] [stderr]    |                                                 ^^^^^^^^ help: use `dyn`: `dyn Material`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/object.rs:146:20
[INFO] [stderr]     |
[INFO] [stderr] 146 |     pub left : Box<Object>,
[INFO] [stderr]     |                    ^^^^^^ help: use `dyn`: `dyn Object`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/object.rs:147:21
[INFO] [stderr]     |
[INFO] [stderr] 147 |     pub right : Box<Object>,
[INFO] [stderr]     |                     ^^^^^^ help: use `dyn`: `dyn Object`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/object.rs:178:19
[INFO] [stderr]     |
[INFO] [stderr] 178 |     rng_fn : &mut FnMut() -> usize,
[INFO] [stderr]     |                   ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut() -> usize`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/object.rs:180:21
[INFO] [stderr]     |
[INFO] [stderr] 180 |     mut v : Vec<Box<Object>>, time : (f32, f32)
[INFO] [stderr]     |                     ^^^^^^ help: use `dyn`: `dyn Object`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/object.rs:181:10
[INFO] [stderr]     |
[INFO] [stderr] 181 | ) -> Box<Object> {
[INFO] [stderr]     |          ^^^^^^ help: use `dyn`: `dyn Object`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/object.rs:184:26
[INFO] [stderr]     |
[INFO] [stderr] 184 |     v.sort_by(&|a : &Box<Object>, b : &Box<Object>| {
[INFO] [stderr]     |                          ^^^^^^ help: use `dyn`: `dyn Object`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/object.rs:184:44
[INFO] [stderr]     |
[INFO] [stderr] 184 |     v.sort_by(&|a : &Box<Object>, b : &Box<Object>| {
[INFO] [stderr]     |                                            ^^^^^^ help: use `dyn`: `dyn Object`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/object.rs:211:33
[INFO] [stderr]     |
[INFO] [stderr] 211 |     rng : &mut Rng, v : Vec<Box<Object>>, time : (f32, f32)
[INFO] [stderr]     |                                 ^^^^^^ help: use `dyn`: `dyn Object`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/object.rs:212:10
[INFO] [stderr]     |
[INFO] [stderr] 212 | ) -> Box<Object> {
[INFO] [stderr]     |          ^^^^^^ help: use `dyn`: `dyn Object`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/object.rs:220:24
[INFO] [stderr]     |
[INFO] [stderr] 220 |     pub boundary : Box<Object>,
[INFO] [stderr]     |                        ^^^^^^ help: use `dyn`: `dyn Object`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/object.rs:222:30
[INFO] [stderr]     |
[INFO] [stderr] 222 |     pub phase_function : Box<Material>,
[INFO] [stderr]     |                              ^^^^^^^^ help: use `dyn`: `dyn Material`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/object.rs:279:46
[INFO] [stderr]     |
[INFO] [stderr] 279 | pub fn cube(p0 : Vec3, p1 : Vec3, mat : &Arc<Material>) -> Box<Object> {
[INFO] [stderr]     |                                              ^^^^^^^^ help: use `dyn`: `dyn Material`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/object.rs:279:64
[INFO] [stderr]     |
[INFO] [stderr] 279 | pub fn cube(p0 : Vec3, p1 : Vec3, mat : &Arc<Material>) -> Box<Object> {
[INFO] [stderr]     |                                                                ^^^^^^ help: use `dyn`: `dyn Object`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/object.rs:291:21
[INFO] [stderr]     |
[INFO] [stderr] 291 |     pub inner : Box<Object>,
[INFO] [stderr]     |                     ^^^^^^ help: use `dyn`: `dyn Object`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/object.rs:295:45
[INFO] [stderr]     |
[INFO] [stderr] 295 | pub fn translate(offset : Vec3, inner : Box<Object>) -> Box<Translate> {
[INFO] [stderr]     |                                             ^^^^^^ help: use `dyn`: `dyn Object`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/object.rs:321:21
[INFO] [stderr]     |
[INFO] [stderr] 321 |     pub inner : Box<Object>,
[INFO] [stderr]     |                     ^^^^^^ help: use `dyn`: `dyn Object`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/object.rs:325:24
[INFO] [stderr]     |
[INFO] [stderr] 325 |     debug_object : Box<Object>,
[INFO] [stderr]     |                        ^^^^^^ help: use `dyn`: `dyn Object`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/object.rs:328:53
[INFO] [stderr]     |
[INFO] [stderr] 328 | pub fn rotate(axis : Vec3, angle : f32, inner : Box<Object>) -> Box<Rotate> {
[INFO] [stderr]     |                                                     ^^^^^^ help: use `dyn`: `dyn Object`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/object.rs:362:22
[INFO] [stderr]     |
[INFO] [stderr] 362 |     let matter : Arc<Material> =
[INFO] [stderr]     |                      ^^^^^^^^ help: use `dyn`: `dyn Material`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/object.rs:404:32
[INFO] [stderr]     |
[INFO] [stderr] 404 |             pub material : Arc<Material>,
[INFO] [stderr]     |                                ^^^^^^^^ help: use `dyn`: `dyn Material`
[INFO] [stderr] ...
[INFO] [stderr] 460 | aarect!(XYRect, [x, X], [y, Y], [z, Z]);
[INFO] [stderr]     | ---------------------------------------- in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/object.rs:412:72
[INFO] [stderr]     |
[INFO] [stderr] 412 |                 $x : (f32, f32), $y : (f32, f32), $z : f32, mat : &Arc<Material>, flip : bool
[INFO] [stderr]     |                                                                        ^^^^^^^^ help: use `dyn`: `dyn Material`
[INFO] [stderr] ...
[INFO] [stderr] 460 | aarect!(XYRect, [x, X], [y, Y], [z, Z]);
[INFO] [stderr]     | ---------------------------------------- in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/object.rs:413:22
[INFO] [stderr]     |
[INFO] [stderr] 413 |             ) -> Box<Object> {
[INFO] [stderr]     |                      ^^^^^^ help: use `dyn`: `dyn Object`
[INFO] [stderr] ...
[INFO] [stderr] 460 | aarect!(XYRect, [x, X], [y, Y], [z, Z]);
[INFO] [stderr]     | ---------------------------------------- in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/object.rs:404:32
[INFO] [stderr]     |
[INFO] [stderr] 404 |             pub material : Arc<Material>,
[INFO] [stderr]     |                                ^^^^^^^^ help: use `dyn`: `dyn Material`
[INFO] [stderr] ...
[INFO] [stderr] 461 | aarect!(YZRect, [y, Y], [z, Z], [x, X]);
[INFO] [stderr]     | ---------------------------------------- in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/object.rs:412:72
[INFO] [stderr]     |
[INFO] [stderr] 412 |                 $x : (f32, f32), $y : (f32, f32), $z : f32, mat : &Arc<Material>, flip : bool
[INFO] [stderr]     |                                                                        ^^^^^^^^ help: use `dyn`: `dyn Material`
[INFO] [stderr] ...
[INFO] [stderr] 461 | aarect!(YZRect, [y, Y], [z, Z], [x, X]);
[INFO] [stderr]     | ---------------------------------------- in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/object.rs:413:22
[INFO] [stderr]     |
[INFO] [stderr] 413 |             ) -> Box<Object> {
[INFO] [stderr]     |                      ^^^^^^ help: use `dyn`: `dyn Object`
[INFO] [stderr] ...
[INFO] [stderr] 461 | aarect!(YZRect, [y, Y], [z, Z], [x, X]);
[INFO] [stderr]     | ---------------------------------------- in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/object.rs:404:32
[INFO] [stderr]     |
[INFO] [stderr] 404 |             pub material : Arc<Material>,
[INFO] [stderr]     |                                ^^^^^^^^ help: use `dyn`: `dyn Material`
[INFO] [stderr] ...
[INFO] [stderr] 462 | aarect!(XZRect, [x, X], [z, Z], [y, Y]);
[INFO] [stderr]     | ---------------------------------------- in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/object.rs:412:72
[INFO] [stderr]     |
[INFO] [stderr] 412 |                 $x : (f32, f32), $y : (f32, f32), $z : f32, mat : &Arc<Material>, flip : bool
[INFO] [stderr]     |                                                                        ^^^^^^^^ help: use `dyn`: `dyn Material`
[INFO] [stderr] ...
[INFO] [stderr] 462 | aarect!(XZRect, [x, X], [z, Z], [y, Y]);
[INFO] [stderr]     | ---------------------------------------- in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/object.rs:413:22
[INFO] [stderr]     |
[INFO] [stderr] 413 |             ) -> Box<Object> {
[INFO] [stderr]     |                      ^^^^^^ help: use `dyn`: `dyn Object`
[INFO] [stderr] ...
[INFO] [stderr] 462 | aarect!(XZRect, [x, X], [z, Z], [y, Y]);
[INFO] [stderr]     | ---------------------------------------- in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/tasks.rs:17:21
[INFO] [stderr]    |
[INFO] [stderr] 17 |     pub world : Box<Object>,
[INFO] [stderr]    |                     ^^^^^^ help: use `dyn`: `dyn Object`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/tasks.rs:22:28
[INFO] [stderr]    |
[INFO] [stderr] 22 |     let mut list : Vec<Box<Object>> = Vec::new();
[INFO] [stderr]    |                            ^^^^^^ help: use `dyn`: `dyn Object`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/tasks.rs:100:28
[INFO] [stderr]     |
[INFO] [stderr] 100 |     let mut list : Vec<Box<Object>> = Vec::new();
[INFO] [stderr]     |                            ^^^^^^ help: use `dyn`: `dyn Object`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/tasks.rs:101:31
[INFO] [stderr]     |
[INFO] [stderr] 101 |     let mut boxlist : Vec<Box<Object>> = Vec::new();
[INFO] [stderr]     |                               ^^^^^^ help: use `dyn`: `dyn Object`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/tasks.rs:102:32
[INFO] [stderr]     |
[INFO] [stderr] 102 |     let mut boxlist2 : Vec<Box<Object>> = Vec::new();
[INFO] [stderr]     |                                ^^^^^^ help: use `dyn`: `dyn Object`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/tasks.rs:104:21
[INFO] [stderr]     |
[INFO] [stderr] 104 |     let white : Arc<Material> =
[INFO] [stderr]     |                     ^^^^^^^^ help: use `dyn`: `dyn Material`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/tasks.rs:106:22
[INFO] [stderr]     |
[INFO] [stderr] 106 |     let ground : Arc<Material> =
[INFO] [stderr]     |                      ^^^^^^^^ help: use `dyn`: `dyn Material`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/tasks.rs:108:19
[INFO] [stderr]     |
[INFO] [stderr] 108 |     let red : Arc<Material> =
[INFO] [stderr]     |                   ^^^^^^^^ help: use `dyn`: `dyn Material`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/tasks.rs:158:25
[INFO] [stderr]     |
[INFO] [stderr] 158 |         let light : Arc<Material> =
[INFO] [stderr]     |                         ^^^^^^^^ help: use `dyn`: `dyn Material`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/tasks.rs:247:28
[INFO] [stderr]     |
[INFO] [stderr] 247 |     let mut list : Vec<Box<Object>> = Vec::new();
[INFO] [stderr]     |                            ^^^^^^ help: use `dyn`: `dyn Object`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/tasks.rs:304:28
[INFO] [stderr]     |
[INFO] [stderr] 304 |     let mut list : Vec<Box<Object>> = vec![];
[INFO] [stderr]     |                            ^^^^^^ help: use `dyn`: `dyn Object`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/tasks.rs:306:19
[INFO] [stderr]     |
[INFO] [stderr] 306 |     let red : Arc<Material> = Arc::new(Lambertian(ConstantTex(vec3(0.65, 0.05, 0.05))));
[INFO] [stderr]     |                   ^^^^^^^^ help: use `dyn`: `dyn Material`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/tasks.rs:307:21
[INFO] [stderr]     |
[INFO] [stderr] 307 |     let white : Arc<Material> = Arc::new(Lambertian(ConstantTex(0.73 * ONE3)));
[INFO] [stderr]     |                     ^^^^^^^^ help: use `dyn`: `dyn Material`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/tasks.rs:308:21
[INFO] [stderr]     |
[INFO] [stderr] 308 |     let green : Arc<Material> = Arc::new(Lambertian(ConstantTex(vec3(0.12, 0.45, 0.15))));
[INFO] [stderr]     |                     ^^^^^^^^ help: use `dyn`: `dyn Material`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/tasks.rs:309:21
[INFO] [stderr]     |
[INFO] [stderr] 309 |     let light : Arc<Material> = Arc::new(DiffuseLight(ConstantTex(7.0 * ONE3)));
[INFO] [stderr]     |                     ^^^^^^^^ help: use `dyn`: `dyn Material`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/tasks.rs:363:28
[INFO] [stderr]     |
[INFO] [stderr] 363 |     let mut list : Vec<Box<Object>> = vec![];
[INFO] [stderr]     |                            ^^^^^^ help: use `dyn`: `dyn Object`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/tasks.rs:387:28
[INFO] [stderr]     |
[INFO] [stderr] 387 |     let mut list : Vec<Box<Object>> = vec![];
[INFO] [stderr]     |                            ^^^^^^ help: use `dyn`: `dyn Object`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/tasks.rs:389:21
[INFO] [stderr]     |
[INFO] [stderr] 389 |     let light : Arc<Material> = Arc::new(DiffuseLight(ConstantTex(5.0 * ONE3)));
[INFO] [stderr]     |                     ^^^^^^^^ help: use `dyn`: `dyn Material`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/tasks.rs:390:19
[INFO] [stderr]     |
[INFO] [stderr] 390 |     let red : Arc<Material> = Arc::new(Lambertian(ConstantTex(vec3(0.9, 0.3, 0.3))));
[INFO] [stderr]     |                   ^^^^^^^^ help: use `dyn`: `dyn Material`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/vec3.rs:52:37
[INFO] [stderr]    |
[INFO] [stderr] 52 |     pub fn fmap_mut(&mut self, f : &Fn(f32) -> f32) {
[INFO] [stderr]    |                                     ^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(f32) -> f32`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:178:49
[INFO] [stderr]     |
[INFO] [stderr] 178 | fn ray_trace(rng : &mut Rng, r0 : Ray, world : &Object) -> Vec3 {
[INFO] [stderr]     |                                                 ^^^^^^ help: use `dyn`: `dyn Object`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 3 previous errors
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0554`.
[INFO] [stderr] error: Could not compile `rust-tracer`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "2a9d28e47361a11a52d1a1333a10736b0c2690791d820c595f1b07f0515795c5"`
[INFO] running `"docker" "rm" "-f" "2a9d28e47361a11a52d1a1333a10736b0c2690791d820c595f1b07f0515795c5"`
[INFO] [stdout] 2a9d28e47361a11a52d1a1333a10736b0c2690791d820c595f1b07f0515795c5