[INFO] updating cached repository https://github.com/komu/weekend-raytracer
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }`
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 104613a9fe2c6f77b1701b20e61069a986a2fb78
[INFO] testing komu/weekend-raytracer against beta-2020-07-24 for beta-1.46-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkomu%2Fweekend-raytracer" "/workspace/builds/worker-12/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/komu/weekend-raytracer on toolchain beta-2020-07-24
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/komu/weekend-raytracer
[INFO] finished tweaking git repo https://github.com/komu/weekend-raytracer
[INFO] tweaked toml for git repo https://github.com/komu/weekend-raytracer written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate git repo https://github.com/komu/weekend-raytracer already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9a705fead0ad4102bf7699cb04bad1c919a7335785d82c49121744fa23be8038
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "9a705fead0ad4102bf7699cb04bad1c919a7335785d82c49121744fa23be8038", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9a705fead0ad4102bf7699cb04bad1c919a7335785d82c49121744fa23be8038", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9a705fead0ad4102bf7699cb04bad1c919a7335785d82c49121744fa23be8038", kill_on_drop: false }`
[INFO] [stdout] 9a705fead0ad4102bf7699cb04bad1c919a7335785d82c49121744fa23be8038
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b3e0fdd717ea32c42ef200a6d8d0f018451ca4b3190ec974d0633bf64a4a8f34
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "b3e0fdd717ea32c42ef200a6d8d0f018451ca4b3190ec974d0633bf64a4a8f34", kill_on_drop: false }`
[INFO] [stderr]    Compiling deflate v0.7.18
[INFO] [stderr]    Compiling array-init v0.0.4
[INFO] [stderr]    Compiling cgmath v0.16.1
[INFO] [stderr]    Compiling syn v0.14.9
[INFO] [stderr]    Compiling rayon-core v1.4.1
[INFO] [stderr]    Compiling png v0.12.0
[INFO] [stderr]    Compiling rayon v1.0.2
[INFO] [stderr]    Compiling jpeg-decoder v0.1.15
[INFO] [stderr]    Compiling num-derive v0.2.2
[INFO] [stderr]    Compiling image v0.19.0
[INFO] [stderr]    Compiling weekend-raytracer v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/bvh_node.rs:9:15
[INFO] [stdout]   |
[INFO] [stdout] 9 |     left: Box<Hitable>,
[INFO] [stdout]   |               ^^^^^^^ help: use `dyn`: `dyn Hitable`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/bvh_node.rs:10:16
[INFO] [stdout]    |
[INFO] [stdout] 10 |     right: Box<Hitable>,
[INFO] [stdout]    |                ^^^^^^^ help: use `dyn`: `dyn Hitable`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/bvh_node.rs:14:34
[INFO] [stdout]    |
[INFO] [stdout] 14 |     fn new(aabb: AABB, left: Box<Hitable>, right: Box<Hitable>) -> BvhNode {
[INFO] [stdout]    |                                  ^^^^^^^ help: use `dyn`: `dyn Hitable`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/bvh_node.rs:14:55
[INFO] [stdout]    |
[INFO] [stdout] 14 |     fn new(aabb: AABB, left: Box<Hitable>, right: Box<Hitable>) -> BvhNode {
[INFO] [stdout]    |                                                       ^^^^^^^ help: use `dyn`: `dyn Hitable`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/bvh_node.rs:18:40
[INFO] [stdout]    |
[INFO] [stdout] 18 |     pub fn build(mut hitables: Vec<Box<Hitable>>, t0: f64, t1: f64) -> Box<Hitable> {
[INFO] [stdout]    |                                        ^^^^^^^ help: use `dyn`: `dyn Hitable`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/bvh_node.rs:18:76
[INFO] [stdout]    |
[INFO] [stdout] 18 |     pub fn build(mut hitables: Vec<Box<Hitable>>, t0: f64, t1: f64) -> Box<Hitable> {
[INFO] [stdout]    |                                                                            ^^^^^^^ help: use `dyn`: `dyn Hitable`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/bvh_node.rs:75:18
[INFO] [stdout]    |
[INFO] [stdout] 75 |     hitable: Box<Hitable>,
[INFO] [stdout]    |                  ^^^^^^^ help: use `dyn`: `dyn Hitable`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/bvh_node.rs:79:37
[INFO] [stdout]    |
[INFO] [stdout] 79 |     fn new(aabb: AABB, hitable: Box<Hitable>) -> CachedBoundingBox {
[INFO] [stdout]    |                                     ^^^^^^^ help: use `dyn`: `dyn Hitable`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/hitable.rs:11:23
[INFO] [stdout]    |
[INFO] [stdout] 11 |     pub material: Arc<Material>,
[INFO] [stdout]    |                       ^^^^^^^^ help: use `dyn`: `dyn Material`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/hitable.rs:23:77
[INFO] [stdout]    |
[INFO] [stdout] 23 |     pub fn new(t: f64, p: Point3<f64>, normal: Vector3<f64>, material: &Arc<Material>) -> HitRecord {
[INFO] [stdout]    |                                                                             ^^^^^^^^ help: use `dyn`: `dyn Material`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/hitable_list.rs:6:19
[INFO] [stdout]   |
[INFO] [stdout] 6 |     list: Vec<Box<Hitable>>
[INFO] [stdout]   |                   ^^^^^^^ help: use `dyn`: `dyn Hitable`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/hitable_list.rs:10:30
[INFO] [stdout]    |
[INFO] [stdout] 10 |     pub fn new(list: Vec<Box<Hitable>>) -> HitableList {
[INFO] [stdout]    |                              ^^^^^^^ help: use `dyn`: `dyn Hitable`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/material.rs:14:17
[INFO] [stdout]    |
[INFO] [stdout] 14 |     albedo: Box<Texture>
[INFO] [stdout]    |                 ^^^^^^^ help: use `dyn`: `dyn Texture`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/material.rs:18:28
[INFO] [stdout]    |
[INFO] [stdout] 18 |     pub fn new(albedo: Box<Texture>) -> Lambertian {
[INFO] [stdout]    |                            ^^^^^^^ help: use `dyn`: `dyn Texture`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/sphere.rs:13:23
[INFO] [stdout]    |
[INFO] [stdout] 13 |     pub material: Arc<Material>,
[INFO] [stdout]    |                       ^^^^^^^^ help: use `dyn`: `dyn Material`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/sphere.rs:17:64
[INFO] [stdout]    |
[INFO] [stdout] 17 |     pub fn new(center: Point3<f64>, radius: f64, material: Arc<Material>) -> Sphere {
[INFO] [stdout]    |                                                                ^^^^^^^^ help: use `dyn`: `dyn Material`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/sphere.rs:65:23
[INFO] [stdout]    |
[INFO] [stdout] 65 |     pub material: Arc<Material>,
[INFO] [stdout]    |                       ^^^^^^^^ help: use `dyn`: `dyn Material`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/sphere.rs:69:111
[INFO] [stdout]    |
[INFO] [stdout] 69 |     pub fn new(center0: Point3<f64>, center1: Point3<f64>, time0: f64, time1: f64, radius: f64, material: Arc<Material>) -> MovingSphere {
[INFO] [stdout]    |                                                                                                               ^^^^^^^^ help: use `dyn`: `dyn Material`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/texture.rs:15:14
[INFO] [stdout]    |
[INFO] [stdout] 15 |     odd: Box<Texture>,
[INFO] [stdout]    |              ^^^^^^^ help: use `dyn`: `dyn Texture`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/texture.rs:16:15
[INFO] [stdout]    |
[INFO] [stdout] 16 |     even: Box<Texture>,
[INFO] [stdout]    |               ^^^^^^^ help: use `dyn`: `dyn Texture`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/texture.rs:20:25
[INFO] [stdout]    |
[INFO] [stdout] 20 |     pub fn new(odd: Box<Texture>, even: Box<Texture>) -> CheckerTexture {
[INFO] [stdout]    |                         ^^^^^^^ help: use `dyn`: `dyn Texture`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/texture.rs:20:45
[INFO] [stdout]    |
[INFO] [stdout] 20 |     pub fn new(odd: Box<Texture>, even: Box<Texture>) -> CheckerTexture {
[INFO] [stdout]    |                                             ^^^^^^^ help: use `dyn`: `dyn Texture`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/main.rs:91:25
[INFO] [stdout]    |
[INFO] [stdout] 91 |             let world: &Hitable = &**world;
[INFO] [stdout]    |                         ^^^^^^^ help: use `dyn`: `dyn Hitable`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:153:32
[INFO] [stdout]     |
[INFO] [stdout] 153 | fn two_perlin_spheres() -> Box<Hitable> {
[INFO] [stdout]     |                                ^^^^^^^ help: use `dyn`: `dyn Hitable`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:154:26
[INFO] [stdout]     |
[INFO] [stdout] 154 |     let mut vec: Vec<Box<Hitable>> = vec![];
[INFO] [stdout]     |                          ^^^^^^^ help: use `dyn`: `dyn Hitable`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:163:64
[INFO] [stdout]     |
[INFO] [stdout] 163 | fn random_scene<T : Rng>(rng: &mut T, t0: f64, t1: f64) -> Box<Hitable> {
[INFO] [stdout]     |                                                                ^^^^^^^ help: use `dyn`: `dyn Hitable`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:164:26
[INFO] [stdout]     |
[INFO] [stdout] 164 |     let mut vec: Vec<Box<Hitable>> = vec![];
[INFO] [stdout]     |                          ^^^^^^^ help: use `dyn`: `dyn Hitable`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `rng`
[INFO] [stdout]   --> src/main.rs:72:9
[INFO] [stdout]    |
[INFO] [stdout] 72 |     let mut rng = thread_rng();
[INFO] [stdout]    |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_rng`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:72:9
[INFO] [stdout]    |
[INFO] [stdout] 72 |     let mut rng = thread_rng();
[INFO] [stdout]    |         ----^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 29 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 47.48s
[INFO] running `Command { std: "docker" "inspect" "b3e0fdd717ea32c42ef200a6d8d0f018451ca4b3190ec974d0633bf64a4a8f34", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b3e0fdd717ea32c42ef200a6d8d0f018451ca4b3190ec974d0633bf64a4a8f34", kill_on_drop: false }`
[INFO] [stdout] b3e0fdd717ea32c42ef200a6d8d0f018451ca4b3190ec974d0633bf64a4a8f34
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 72a0ae4b52c53849500bc44cc30f04f8ae21f294735d1842732ba57880a65199
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "72a0ae4b52c53849500bc44cc30f04f8ae21f294735d1842732ba57880a65199", kill_on_drop: false }`
[INFO] [stderr]    Compiling weekend-raytracer v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/bvh_node.rs:9:15
[INFO] [stdout]   |
[INFO] [stdout] 9 |     left: Box<Hitable>,
[INFO] [stdout]   |               ^^^^^^^ help: use `dyn`: `dyn Hitable`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/bvh_node.rs:10:16
[INFO] [stdout]    |
[INFO] [stdout] 10 |     right: Box<Hitable>,
[INFO] [stdout]    |                ^^^^^^^ help: use `dyn`: `dyn Hitable`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/bvh_node.rs:14:34
[INFO] [stdout]    |
[INFO] [stdout] 14 |     fn new(aabb: AABB, left: Box<Hitable>, right: Box<Hitable>) -> BvhNode {
[INFO] [stdout]    |                                  ^^^^^^^ help: use `dyn`: `dyn Hitable`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/bvh_node.rs:14:55
[INFO] [stdout]    |
[INFO] [stdout] 14 |     fn new(aabb: AABB, left: Box<Hitable>, right: Box<Hitable>) -> BvhNode {
[INFO] [stdout]    |                                                       ^^^^^^^ help: use `dyn`: `dyn Hitable`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/bvh_node.rs:18:40
[INFO] [stdout]    |
[INFO] [stdout] 18 |     pub fn build(mut hitables: Vec<Box<Hitable>>, t0: f64, t1: f64) -> Box<Hitable> {
[INFO] [stdout]    |                                        ^^^^^^^ help: use `dyn`: `dyn Hitable`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/bvh_node.rs:18:76
[INFO] [stdout]    |
[INFO] [stdout] 18 |     pub fn build(mut hitables: Vec<Box<Hitable>>, t0: f64, t1: f64) -> Box<Hitable> {
[INFO] [stdout]    |                                                                            ^^^^^^^ help: use `dyn`: `dyn Hitable`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/bvh_node.rs:75:18
[INFO] [stdout]    |
[INFO] [stdout] 75 |     hitable: Box<Hitable>,
[INFO] [stdout]    |                  ^^^^^^^ help: use `dyn`: `dyn Hitable`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/bvh_node.rs:79:37
[INFO] [stdout]    |
[INFO] [stdout] 79 |     fn new(aabb: AABB, hitable: Box<Hitable>) -> CachedBoundingBox {
[INFO] [stdout]    |                                     ^^^^^^^ help: use `dyn`: `dyn Hitable`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/hitable.rs:11:23
[INFO] [stdout]    |
[INFO] [stdout] 11 |     pub material: Arc<Material>,
[INFO] [stdout]    |                       ^^^^^^^^ help: use `dyn`: `dyn Material`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/hitable.rs:23:77
[INFO] [stdout]    |
[INFO] [stdout] 23 |     pub fn new(t: f64, p: Point3<f64>, normal: Vector3<f64>, material: &Arc<Material>) -> HitRecord {
[INFO] [stdout]    |                                                                             ^^^^^^^^ help: use `dyn`: `dyn Material`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/hitable_list.rs:6:19
[INFO] [stdout]   |
[INFO] [stdout] 6 |     list: Vec<Box<Hitable>>
[INFO] [stdout]   |                   ^^^^^^^ help: use `dyn`: `dyn Hitable`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/hitable_list.rs:10:30
[INFO] [stdout]    |
[INFO] [stdout] 10 |     pub fn new(list: Vec<Box<Hitable>>) -> HitableList {
[INFO] [stdout]    |                              ^^^^^^^ help: use `dyn`: `dyn Hitable`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/material.rs:14:17
[INFO] [stdout]    |
[INFO] [stdout] 14 |     albedo: Box<Texture>
[INFO] [stdout]    |                 ^^^^^^^ help: use `dyn`: `dyn Texture`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/material.rs:18:28
[INFO] [stdout]    |
[INFO] [stdout] 18 |     pub fn new(albedo: Box<Texture>) -> Lambertian {
[INFO] [stdout]    |                            ^^^^^^^ help: use `dyn`: `dyn Texture`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/sphere.rs:13:23
[INFO] [stdout]    |
[INFO] [stdout] 13 |     pub material: Arc<Material>,
[INFO] [stdout]    |                       ^^^^^^^^ help: use `dyn`: `dyn Material`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/sphere.rs:17:64
[INFO] [stdout]    |
[INFO] [stdout] 17 |     pub fn new(center: Point3<f64>, radius: f64, material: Arc<Material>) -> Sphere {
[INFO] [stdout]    |                                                                ^^^^^^^^ help: use `dyn`: `dyn Material`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/sphere.rs:65:23
[INFO] [stdout]    |
[INFO] [stdout] 65 |     pub material: Arc<Material>,
[INFO] [stdout]    |                       ^^^^^^^^ help: use `dyn`: `dyn Material`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/sphere.rs:69:111
[INFO] [stdout]    |
[INFO] [stdout] 69 |     pub fn new(center0: Point3<f64>, center1: Point3<f64>, time0: f64, time1: f64, radius: f64, material: Arc<Material>) -> MovingSphere {
[INFO] [stdout]    |                                                                                                               ^^^^^^^^ help: use `dyn`: `dyn Material`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/texture.rs:15:14
[INFO] [stdout]    |
[INFO] [stdout] 15 |     odd: Box<Texture>,
[INFO] [stdout]    |              ^^^^^^^ help: use `dyn`: `dyn Texture`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/texture.rs:16:15
[INFO] [stdout]    |
[INFO] [stdout] 16 |     even: Box<Texture>,
[INFO] [stdout]    |               ^^^^^^^ help: use `dyn`: `dyn Texture`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/texture.rs:20:25
[INFO] [stdout]    |
[INFO] [stdout] 20 |     pub fn new(odd: Box<Texture>, even: Box<Texture>) -> CheckerTexture {
[INFO] [stdout]    |                         ^^^^^^^ help: use `dyn`: `dyn Texture`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/texture.rs:20:45
[INFO] [stdout]    |
[INFO] [stdout] 20 |     pub fn new(odd: Box<Texture>, even: Box<Texture>) -> CheckerTexture {
[INFO] [stdout]    |                                             ^^^^^^^ help: use `dyn`: `dyn Texture`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/main.rs:91:25
[INFO] [stdout]    |
[INFO] [stdout] 91 |             let world: &Hitable = &**world;
[INFO] [stdout]    |                         ^^^^^^^ help: use `dyn`: `dyn Hitable`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:153:32
[INFO] [stdout]     |
[INFO] [stdout] 153 | fn two_perlin_spheres() -> Box<Hitable> {
[INFO] [stdout]     |                                ^^^^^^^ help: use `dyn`: `dyn Hitable`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:154:26
[INFO] [stdout]     |
[INFO] [stdout] 154 |     let mut vec: Vec<Box<Hitable>> = vec![];
[INFO] [stdout]     |                          ^^^^^^^ help: use `dyn`: `dyn Hitable`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:163:64
[INFO] [stdout]     |
[INFO] [stdout] 163 | fn random_scene<T : Rng>(rng: &mut T, t0: f64, t1: f64) -> Box<Hitable> {
[INFO] [stdout]     |                                                                ^^^^^^^ help: use `dyn`: `dyn Hitable`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:164:26
[INFO] [stdout]     |
[INFO] [stdout] 164 |     let mut vec: Vec<Box<Hitable>> = vec![];
[INFO] [stdout]     |                          ^^^^^^^ help: use `dyn`: `dyn Hitable`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `rng`
[INFO] [stdout]   --> src/main.rs:72:9
[INFO] [stdout]    |
[INFO] [stdout] 72 |     let mut rng = thread_rng();
[INFO] [stdout]    |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_rng`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:72:9
[INFO] [stdout]    |
[INFO] [stdout] 72 |     let mut rng = thread_rng();
[INFO] [stdout]    |         ----^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 29 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.07s
[INFO] running `Command { std: "docker" "inspect" "72a0ae4b52c53849500bc44cc30f04f8ae21f294735d1842732ba57880a65199", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "72a0ae4b52c53849500bc44cc30f04f8ae21f294735d1842732ba57880a65199", kill_on_drop: false }`
[INFO] [stdout] 72a0ae4b52c53849500bc44cc30f04f8ae21f294735d1842732ba57880a65199
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 72620c64df15151eeb1026df8784e2102f785e38dca47ef7e1675d6a1178a20e
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "72620c64df15151eeb1026df8784e2102f785e38dca47ef7e1675d6a1178a20e", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/bvh_node.rs:9:15
[INFO] [stderr]   |
[INFO] [stderr] 9 |     left: Box<Hitable>,
[INFO] [stderr]   |               ^^^^^^^ help: use `dyn`: `dyn Hitable`
[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/bvh_node.rs:10:16
[INFO] [stderr]    |
[INFO] [stderr] 10 |     right: Box<Hitable>,
[INFO] [stderr]    |                ^^^^^^^ help: use `dyn`: `dyn Hitable`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/bvh_node.rs:14:34
[INFO] [stderr]    |
[INFO] [stderr] 14 |     fn new(aabb: AABB, left: Box<Hitable>, right: Box<Hitable>) -> BvhNode {
[INFO] [stderr]    |                                  ^^^^^^^ help: use `dyn`: `dyn Hitable`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/bvh_node.rs:14:55
[INFO] [stderr]    |
[INFO] [stderr] 14 |     fn new(aabb: AABB, left: Box<Hitable>, right: Box<Hitable>) -> BvhNode {
[INFO] [stderr]    |                                                       ^^^^^^^ help: use `dyn`: `dyn Hitable`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/bvh_node.rs:18:40
[INFO] [stderr]    |
[INFO] [stderr] 18 |     pub fn build(mut hitables: Vec<Box<Hitable>>, t0: f64, t1: f64) -> Box<Hitable> {
[INFO] [stderr]    |                                        ^^^^^^^ help: use `dyn`: `dyn Hitable`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/bvh_node.rs:18:76
[INFO] [stderr]    |
[INFO] [stderr] 18 |     pub fn build(mut hitables: Vec<Box<Hitable>>, t0: f64, t1: f64) -> Box<Hitable> {
[INFO] [stderr]    |                                                                            ^^^^^^^ help: use `dyn`: `dyn Hitable`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/bvh_node.rs:75:18
[INFO] [stderr]    |
[INFO] [stderr] 75 |     hitable: Box<Hitable>,
[INFO] [stderr]    |                  ^^^^^^^ help: use `dyn`: `dyn Hitable`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/bvh_node.rs:79:37
[INFO] [stderr]    |
[INFO] [stderr] 79 |     fn new(aabb: AABB, hitable: Box<Hitable>) -> CachedBoundingBox {
[INFO] [stderr]    |                                     ^^^^^^^ help: use `dyn`: `dyn Hitable`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/hitable.rs:11:23
[INFO] [stderr]    |
[INFO] [stderr] 11 |     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/hitable.rs:23:77
[INFO] [stderr]    |
[INFO] [stderr] 23 |     pub fn new(t: f64, p: Point3<f64>, normal: Vector3<f64>, material: &Arc<Material>) -> HitRecord {
[INFO] [stderr]    |                                                                             ^^^^^^^^ help: use `dyn`: `dyn Material`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/hitable_list.rs:6:19
[INFO] [stderr]   |
[INFO] [stderr] 6 |     list: Vec<Box<Hitable>>
[INFO] [stderr]   |                   ^^^^^^^ help: use `dyn`: `dyn Hitable`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/hitable_list.rs:10:30
[INFO] [stderr]    |
[INFO] [stderr] 10 |     pub fn new(list: Vec<Box<Hitable>>) -> HitableList {
[INFO] [stderr]    |                              ^^^^^^^ help: use `dyn`: `dyn Hitable`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/material.rs:14:17
[INFO] [stderr]    |
[INFO] [stderr] 14 |     albedo: Box<Texture>
[INFO] [stderr]    |                 ^^^^^^^ help: use `dyn`: `dyn Texture`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/material.rs:18:28
[INFO] [stderr]    |
[INFO] [stderr] 18 |     pub fn new(albedo: Box<Texture>) -> Lambertian {
[INFO] [stderr]    |                            ^^^^^^^ help: use `dyn`: `dyn Texture`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/sphere.rs:13:23
[INFO] [stderr]    |
[INFO] [stderr] 13 |     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/sphere.rs:17:64
[INFO] [stderr]    |
[INFO] [stderr] 17 |     pub fn new(center: Point3<f64>, radius: f64, material: Arc<Material>) -> Sphere {
[INFO] [stderr]    |                                                                ^^^^^^^^ help: use `dyn`: `dyn Material`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/sphere.rs:65:23
[INFO] [stderr]    |
[INFO] [stderr] 65 |     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/sphere.rs:69:111
[INFO] [stderr]    |
[INFO] [stderr] 69 |     pub fn new(center0: Point3<f64>, center1: Point3<f64>, time0: f64, time1: f64, radius: f64, material: Arc<Material>) -> MovingSphere {
[INFO] [stderr]    |                                                                                                               ^^^^^^^^ help: use `dyn`: `dyn Material`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/texture.rs:15:14
[INFO] [stderr]    |
[INFO] [stderr] 15 |     odd: Box<Texture>,
[INFO] [stderr]    |              ^^^^^^^ help: use `dyn`: `dyn Texture`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/texture.rs:16:15
[INFO] [stderr]    |
[INFO] [stderr] 16 |     even: Box<Texture>,
[INFO] [stderr]    |               ^^^^^^^ help: use `dyn`: `dyn Texture`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/texture.rs:20:25
[INFO] [stderr]    |
[INFO] [stderr] 20 |     pub fn new(odd: Box<Texture>, even: Box<Texture>) -> CheckerTexture {
[INFO] [stderr]    |                         ^^^^^^^ help: use `dyn`: `dyn Texture`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/texture.rs:20:45
[INFO] [stderr]    |
[INFO] [stderr] 20 |     pub fn new(odd: Box<Texture>, even: Box<Texture>) -> CheckerTexture {
[INFO] [stderr]    |                                             ^^^^^^^ help: use `dyn`: `dyn Texture`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:91:25
[INFO] [stderr]    |
[INFO] [stderr] 91 |             let world: &Hitable = &**world;
[INFO] [stderr]    |                         ^^^^^^^ help: use `dyn`: `dyn Hitable`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:153:32
[INFO] [stderr]     |
[INFO] [stderr] 153 | fn two_perlin_spheres() -> Box<Hitable> {
[INFO] [stderr]     |                                ^^^^^^^ help: use `dyn`: `dyn Hitable`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:154:26
[INFO] [stderr]     |
[INFO] [stderr] 154 |     let mut vec: Vec<Box<Hitable>> = vec![];
[INFO] [stderr]     |                          ^^^^^^^ help: use `dyn`: `dyn Hitable`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:163:64
[INFO] [stderr]     |
[INFO] [stderr] 163 | fn random_scene<T : Rng>(rng: &mut T, t0: f64, t1: f64) -> Box<Hitable> {
[INFO] [stderr]     |                                                                ^^^^^^^ help: use `dyn`: `dyn Hitable`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:164:26
[INFO] [stderr]     |
[INFO] [stderr] 164 |     let mut vec: Vec<Box<Hitable>> = vec![];
[INFO] [stderr]     |                          ^^^^^^^ help: use `dyn`: `dyn Hitable`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `rng`
[INFO] [stderr]   --> src/main.rs:72:9
[INFO] [stderr]    |
[INFO] [stderr] 72 |     let mut rng = thread_rng();
[INFO] [stderr]    |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_rng`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:72:9
[INFO] [stderr]    |
[INFO] [stderr] 72 |     let mut rng = thread_rng();
[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: 29 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.15s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/weekend_raytracer-bf11ec128e8909a1
[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 `Command { std: "docker" "inspect" "72620c64df15151eeb1026df8784e2102f785e38dca47ef7e1675d6a1178a20e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "72620c64df15151eeb1026df8784e2102f785e38dca47ef7e1675d6a1178a20e", kill_on_drop: false }`
[INFO] [stdout] 72620c64df15151eeb1026df8784e2102f785e38dca47ef7e1675d6a1178a20e