[INFO] cloning repository https://github.com/jlgerber/renderer-scratch
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jlgerber/renderer-scratch" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjlgerber%2Frenderer-scratch", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjlgerber%2Frenderer-scratch'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0e543f786a5862d4374df36c053583be77132410
[INFO] building jlgerber/renderer-scratch against master#222c5724ecc922fe67815f428c19f82c129d9386 for pr-97334
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjlgerber%2Frenderer-scratch" "/workspace/builds/worker-10/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-10/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jlgerber/renderer-scratch on toolchain 222c5724ecc922fe67815f428c19f82c129d9386
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+222c5724ecc922fe67815f428c19f82c129d9386" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/jlgerber/renderer-scratch
[INFO] finished tweaking git repo https://github.com/jlgerber/renderer-scratch
[INFO] tweaked toml for git repo https://github.com/jlgerber/renderer-scratch written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate git repo https://github.com/jlgerber/renderer-scratch already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+222c5724ecc922fe67815f428c19f82c129d9386" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:ac0d0aa6ec8ed129e241004a6179c99fa0d2616f50ba759c5b60bd26d0fafa02" "/opt/rustwide/cargo-home/bin/cargo" "+222c5724ecc922fe67815f428c19f82c129d9386" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c23b957636efc50219c8c81f1823a275483161c00c3d4399e54cbd40f1b90ea3
[INFO] running `Command { std: "docker" "start" "-a" "c23b957636efc50219c8c81f1823a275483161c00c3d4399e54cbd40f1b90ea3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c23b957636efc50219c8c81f1823a275483161c00c3d4399e54cbd40f1b90ea3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c23b957636efc50219c8c81f1823a275483161c00c3d4399e54cbd40f1b90ea3", kill_on_drop: false }`
[INFO] [stdout] c23b957636efc50219c8c81f1823a275483161c00c3d4399e54cbd40f1b90ea3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:ac0d0aa6ec8ed129e241004a6179c99fa0d2616f50ba759c5b60bd26d0fafa02" "/opt/rustwide/cargo-home/bin/cargo" "+222c5724ecc922fe67815f428c19f82c129d9386" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b0d74323f401a236bdadb5f00700c09b9e2dd47855ba346ed2500d200884e50a
[INFO] running `Command { std: "docker" "start" "-a" "b0d74323f401a236bdadb5f00700c09b9e2dd47855ba346ed2500d200884e50a", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling scoped_threadpool v0.1.9
[INFO] [stderr]    Compiling trait_test v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/sphere.rs:8:27
[INFO] [stdout]   |
[INFO] [stdout] 8 |     pub material: &'a Box<Material + 'a>
[INFO] [stdout]   |                           ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]   = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]   |
[INFO] [stdout] 8 -     pub material: &'a Box<Material + 'a>
[INFO] [stdout] 8 +     pub material: &'a Box<dyn Material + 'a>
[INFO] [stdout]   | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/lambert.rs:5:21
[INFO] [stdout]   |
[INFO] [stdout] 5 |    pub texture: Box<Texture>
[INFO] [stdout]   |                     ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]   = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]   |
[INFO] [stdout] 5 -    pub texture: Box<Texture>
[INFO] [stdout] 5 +    pub texture: Box<dyn Texture>
[INFO] [stdout]   | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/hitrecord.rs:5:34
[INFO] [stdout]   |
[INFO] [stdout] 5 |     pub material: Option<&'b Box<Material + 'b>>
[INFO] [stdout]   |                                  ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]   = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]   |
[INFO] [stdout] 5 -     pub material: Option<&'b Box<Material + 'b>>
[INFO] [stdout] 5 +     pub material: Option<&'b Box<dyn Material + 'b>>
[INFO] [stdout]   | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/sphere.rs:12:47
[INFO] [stdout]    |
[INFO] [stdout] 12 |     pub fn new(radius: f32, material: &'a Box<Material + 'a> ) -> Sphere<'a> {
[INFO] [stdout]    |                                               ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 12 -     pub fn new(radius: f32, material: &'a Box<Material + 'a> ) -> Sphere<'a> {
[INFO] [stdout] 12 +     pub fn new(radius: f32, material: &'a Box<dyn Material + 'a> ) -> Sphere<'a> {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/lambert.rs:9:29
[INFO] [stdout]   |
[INFO] [stdout] 9 |     pub fn new(texture: Box<Texture> ) -> Lambert {
[INFO] [stdout]   |                             ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]   = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]   |
[INFO] [stdout] 9 -     pub fn new(texture: Box<Texture> ) -> Lambert {
[INFO] [stdout] 9 +     pub fn new(texture: Box<dyn Texture> ) -> Lambert {
[INFO] [stdout]   | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `trait_test::traits::*`
[INFO] [stdout]   --> src/bin/main.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | use trait_test::traits::*;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/bin/main.rs:13:39
[INFO] [stdout]    |
[INFO] [stdout] 13 | type MaterialMgr = HashMap<String,Box<Material>>;
[INFO] [stdout]    |                                       ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 13 - type MaterialMgr = HashMap<String,Box<Material>>;
[INFO] [stdout] 13 + type MaterialMgr = HashMap<String,Box<dyn Material>>;
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.30s
[INFO] running `Command { std: "docker" "inspect" "b0d74323f401a236bdadb5f00700c09b9e2dd47855ba346ed2500d200884e50a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b0d74323f401a236bdadb5f00700c09b9e2dd47855ba346ed2500d200884e50a", kill_on_drop: false }`
[INFO] [stdout] b0d74323f401a236bdadb5f00700c09b9e2dd47855ba346ed2500d200884e50a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:ac0d0aa6ec8ed129e241004a6179c99fa0d2616f50ba759c5b60bd26d0fafa02" "/opt/rustwide/cargo-home/bin/cargo" "+222c5724ecc922fe67815f428c19f82c129d9386" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 52a03f581e37707e985b13af8f2e2055a3267cd35e83102566562b8609abcb90
[INFO] running `Command { std: "docker" "start" "-a" "52a03f581e37707e985b13af8f2e2055a3267cd35e83102566562b8609abcb90", kill_on_drop: false }`
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/sphere.rs:8:27
[INFO] [stdout]   |
[INFO] [stdout] 8 |     pub material: &'a Box<Material + 'a>
[INFO] [stdout]   |                           ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]   = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]   |
[INFO] [stdout] 8 -     pub material: &'a Box<Material + 'a>
[INFO] [stdout] 8 +     pub material: &'a Box<dyn Material + 'a>
[INFO] [stdout]   | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/lambert.rs:5:21
[INFO] [stdout]   |
[INFO] [stdout] 5 |    pub texture: Box<Texture>
[INFO] [stdout]   |                     ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]   = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]   |
[INFO] [stdout] 5 -    pub texture: Box<Texture>
[INFO] [stdout] 5 +    pub texture: Box<dyn Texture>
[INFO] [stdout]   | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/hitrecord.rs:5:34
[INFO] [stdout]   |
[INFO] [stdout] 5 |     pub material: Option<&'b Box<Material + 'b>>
[INFO] [stdout]   |                                  ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]   = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]   |
[INFO] [stdout] 5 -     pub material: Option<&'b Box<Material + 'b>>
[INFO] [stdout] 5 +     pub material: Option<&'b Box<dyn Material + 'b>>
[INFO] [stdout]   | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/sphere.rs:12:47
[INFO] [stdout]    |
[INFO] [stdout] 12 |     pub fn new(radius: f32, material: &'a Box<Material + 'a> ) -> Sphere<'a> {
[INFO] [stdout]    |                                               ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 12 -     pub fn new(radius: f32, material: &'a Box<Material + 'a> ) -> Sphere<'a> {
[INFO] [stdout] 12 +     pub fn new(radius: f32, material: &'a Box<dyn Material + 'a> ) -> Sphere<'a> {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/lambert.rs:9:29
[INFO] [stdout]   |
[INFO] [stdout] 9 |     pub fn new(texture: Box<Texture> ) -> Lambert {
[INFO] [stdout]   |                             ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]   = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]   |
[INFO] [stdout] 9 -     pub fn new(texture: Box<Texture> ) -> Lambert {
[INFO] [stdout] 9 +     pub fn new(texture: Box<dyn Texture> ) -> Lambert {
[INFO] [stdout]   | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling trait_test v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `trait_test::traits::*`
[INFO] [stdout]   --> src/bin/main.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | use trait_test::traits::*;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/bin/main.rs:13:39
[INFO] [stdout]    |
[INFO] [stdout] 13 | type MaterialMgr = HashMap<String,Box<Material>>;
[INFO] [stdout]    |                                       ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 13 - type MaterialMgr = HashMap<String,Box<Material>>;
[INFO] [stdout] 13 + type MaterialMgr = HashMap<String,Box<dyn Material>>;
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/sphere.rs:8:27
[INFO] [stdout]   |
[INFO] [stdout] 8 |     pub material: &'a Box<Material + 'a>
[INFO] [stdout]   |                           ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]   = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]   |
[INFO] [stdout] 8 -     pub material: &'a Box<Material + 'a>
[INFO] [stdout] 8 +     pub material: &'a Box<dyn Material + 'a>
[INFO] [stdout]   | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/lambert.rs:5:21
[INFO] [stdout]   |
[INFO] [stdout] 5 |    pub texture: Box<Texture>
[INFO] [stdout]   |                     ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]   = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]   |
[INFO] [stdout] 5 -    pub texture: Box<Texture>
[INFO] [stdout] 5 +    pub texture: Box<dyn Texture>
[INFO] [stdout]   | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/hitrecord.rs:5:34
[INFO] [stdout]   |
[INFO] [stdout] 5 |     pub material: Option<&'b Box<Material + 'b>>
[INFO] [stdout]   |                                  ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]   = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]   |
[INFO] [stdout] 5 -     pub material: Option<&'b Box<Material + 'b>>
[INFO] [stdout] 5 +     pub material: Option<&'b Box<dyn Material + 'b>>
[INFO] [stdout]   | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/sphere.rs:12:47
[INFO] [stdout]    |
[INFO] [stdout] 12 |     pub fn new(radius: f32, material: &'a Box<Material + 'a> ) -> Sphere<'a> {
[INFO] [stdout]    |                                               ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 12 -     pub fn new(radius: f32, material: &'a Box<Material + 'a> ) -> Sphere<'a> {
[INFO] [stdout] 12 +     pub fn new(radius: f32, material: &'a Box<dyn Material + 'a> ) -> Sphere<'a> {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/lambert.rs:9:29
[INFO] [stdout]   |
[INFO] [stdout] 9 |     pub fn new(texture: Box<Texture> ) -> Lambert {
[INFO] [stdout]   |                             ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]   = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]   |
[INFO] [stdout] 9 -     pub fn new(texture: Box<Texture> ) -> Lambert {
[INFO] [stdout] 9 +     pub fn new(texture: Box<dyn Texture> ) -> Lambert {
[INFO] [stdout]   | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.37s
[INFO] [stderr]   Executable unittests src/lib.rs (/opt/rustwide/target/debug/deps/trait_test-0daaf080b8dcc756)
[INFO] [stderr]   Executable unittests src/bin/main.rs (/opt/rustwide/target/debug/deps/main-24055080168cdc28)
[INFO] running `Command { std: "docker" "inspect" "52a03f581e37707e985b13af8f2e2055a3267cd35e83102566562b8609abcb90", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "52a03f581e37707e985b13af8f2e2055a3267cd35e83102566562b8609abcb90", kill_on_drop: false }`
[INFO] [stdout] 52a03f581e37707e985b13af8f2e2055a3267cd35e83102566562b8609abcb90