[INFO] cloning repository https://github.com/passy/rust-tracerayer
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/passy/rust-tracerayer" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpassy%2Frust-tracerayer", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpassy%2Frust-tracerayer'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 49dbcaec2707a4b5a162ebf4ba9cb51baec44f33
[INFO] testing passy/rust-tracerayer against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpassy%2Frust-tracerayer" "/workspace/builds/worker-14/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-14/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/passy/rust-tracerayer on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/passy/rust-tracerayer
[INFO] finished tweaking git repo https://github.com/passy/rust-tracerayer
[INFO] tweaked toml for git repo https://github.com/passy/rust-tracerayer written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate git repo https://github.com/passy/rust-tracerayer already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 245cef37e48dfac2a9bb1df95937b2a624176c007b1ad81a093208b9ecbe5507
[INFO] running `Command { std: "docker" "start" "-a" "245cef37e48dfac2a9bb1df95937b2a624176c007b1ad81a093208b9ecbe5507", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "245cef37e48dfac2a9bb1df95937b2a624176c007b1ad81a093208b9ecbe5507", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "245cef37e48dfac2a9bb1df95937b2a624176c007b1ad81a093208b9ecbe5507", kill_on_drop: false }`
[INFO] [stdout] 245cef37e48dfac2a9bb1df95937b2a624176c007b1ad81a093208b9ecbe5507
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 18a34d9a295b3047750a044e6e208a79c864e5ed8dad5e2e8de46242244d9294
[INFO] running `Command { std: "docker" "start" "-a" "18a34d9a295b3047750a044e6e208a79c864e5ed8dad5e2e8de46242244d9294", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.21
[INFO] [stderr]    Compiling num-traits v0.1.37
[INFO] [stderr]    Compiling byteorder v1.0.0
[INFO] [stderr]    Compiling adler32 v1.0.0
[INFO] [stderr]    Compiling inflate v0.1.1
[INFO] [stderr]    Compiling color_quant v1.0.0
[INFO] [stderr]    Compiling lzw v0.10.0
[INFO] [stderr]    Compiling scoped_threadpool v0.1.7
[INFO] [stderr]    Compiling glob v0.2.11
[INFO] [stderr]    Compiling deflate v0.7.5
[INFO] [stderr]    Compiling gif v0.9.1
[INFO] [stderr]    Compiling rand v0.3.15
[INFO] [stderr]    Compiling num_cpus v1.3.0
[INFO] [stderr]    Compiling num-integer v0.1.33
[INFO] [stderr]    Compiling enum_primitive v0.1.1
[INFO] [stderr]    Compiling num-iter v0.1.33
[INFO] [stderr]    Compiling num-rational v0.1.36
[INFO] [stderr]    Compiling png v0.6.2
[INFO] [stderr]    Compiling deque v0.3.1
[INFO] [stderr]    Compiling rayon v0.6.0
[INFO] [stderr]    Compiling jpeg-decoder v0.1.11
[INFO] [stderr]    Compiling image v0.12.3
[INFO] [stderr]    Compiling rust-tracerayer v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:193:27
[INFO] [stdout]     |
[INFO] [stdout] 193 |     fn surface(&self) -> &Surface;
[INFO] [stdout]     |                           ^^^^^^^ help: use `dyn`: `dyn Surface`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:197:16
[INFO] [stdout]     |
[INFO] [stdout] 197 |     thing: &'a Thing,
[INFO] [stdout]     |                ^^^^^ help: use `dyn`: `dyn Thing`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:232:21
[INFO] [stdout]     |
[INFO] [stdout] 232 |     things: Vec<Box<Thing>>,
[INFO] [stdout]     |                     ^^^^^ help: use `dyn`: `dyn Thing`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:240:18
[INFO] [stdout]     |
[INFO] [stdout] 240 |     surface: Box<Surface>,
[INFO] [stdout]     |                  ^^^^^^^ help: use `dyn`: `dyn Surface`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:244:27
[INFO] [stdout]     |
[INFO] [stdout] 244 |     fn surface(&self) -> &Surface {
[INFO] [stdout]     |                           ^^^^^^^ help: use `dyn`: `dyn Surface`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:275:18
[INFO] [stdout]     |
[INFO] [stdout] 275 |     surface: Box<Surface>,
[INFO] [stdout]     |                  ^^^^^^^ help: use `dyn`: `dyn Surface`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:279:27
[INFO] [stdout]     |
[INFO] [stdout] 279 |     fn surface(&self) -> &Surface {
[INFO] [stdout]     |                           ^^^^^^^ help: use `dyn`: `dyn Surface`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:344:29
[INFO] [stdout]     |
[INFO] [stdout] 344 | fn reflection_color(thing: &Thing, pos: &Vector, dir: &Vector, scene: &Scene, depth: u32) -> Color {
[INFO] [stdout]     |                             ^^^^^ help: use `dyn`: `dyn Thing`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:355:26
[INFO] [stdout]     |
[INFO] [stdout] 355 | fn natural_color(thing: &Thing, pos: &Vector, normal: &Vector, dir: &Vector, scene: &Scene) -> Color {
[INFO] [stdout]     |                          ^^^^^ help: use `dyn`: `dyn Thing`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 14.17s
[INFO] running `Command { std: "docker" "inspect" "18a34d9a295b3047750a044e6e208a79c864e5ed8dad5e2e8de46242244d9294", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "18a34d9a295b3047750a044e6e208a79c864e5ed8dad5e2e8de46242244d9294", kill_on_drop: false }`
[INFO] [stdout] 18a34d9a295b3047750a044e6e208a79c864e5ed8dad5e2e8de46242244d9294
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 44ff059d0eb9dac2abbc080d90cf6a46c5eea8f0270b68e6cfd91ccc716cbb2a
[INFO] running `Command { std: "docker" "start" "-a" "44ff059d0eb9dac2abbc080d90cf6a46c5eea8f0270b68e6cfd91ccc716cbb2a", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust-tracerayer v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:193:27
[INFO] [stdout]     |
[INFO] [stdout] 193 |     fn surface(&self) -> &Surface;
[INFO] [stdout]     |                           ^^^^^^^ help: use `dyn`: `dyn Surface`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:197:16
[INFO] [stdout]     |
[INFO] [stdout] 197 |     thing: &'a Thing,
[INFO] [stdout]     |                ^^^^^ help: use `dyn`: `dyn Thing`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:232:21
[INFO] [stdout]     |
[INFO] [stdout] 232 |     things: Vec<Box<Thing>>,
[INFO] [stdout]     |                     ^^^^^ help: use `dyn`: `dyn Thing`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:240:18
[INFO] [stdout]     |
[INFO] [stdout] 240 |     surface: Box<Surface>,
[INFO] [stdout]     |                  ^^^^^^^ help: use `dyn`: `dyn Surface`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:244:27
[INFO] [stdout]     |
[INFO] [stdout] 244 |     fn surface(&self) -> &Surface {
[INFO] [stdout]     |                           ^^^^^^^ help: use `dyn`: `dyn Surface`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:275:18
[INFO] [stdout]     |
[INFO] [stdout] 275 |     surface: Box<Surface>,
[INFO] [stdout]     |                  ^^^^^^^ help: use `dyn`: `dyn Surface`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:279:27
[INFO] [stdout]     |
[INFO] [stdout] 279 |     fn surface(&self) -> &Surface {
[INFO] [stdout]     |                           ^^^^^^^ help: use `dyn`: `dyn Surface`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:344:29
[INFO] [stdout]     |
[INFO] [stdout] 344 | fn reflection_color(thing: &Thing, pos: &Vector, dir: &Vector, scene: &Scene, depth: u32) -> Color {
[INFO] [stdout]     |                             ^^^^^ help: use `dyn`: `dyn Thing`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:355:26
[INFO] [stdout]     |
[INFO] [stdout] 355 | fn natural_color(thing: &Thing, pos: &Vector, normal: &Vector, dir: &Vector, scene: &Scene) -> Color {
[INFO] [stdout]     |                          ^^^^^ help: use `dyn`: `dyn Thing`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.82s
[INFO] running `Command { std: "docker" "inspect" "44ff059d0eb9dac2abbc080d90cf6a46c5eea8f0270b68e6cfd91ccc716cbb2a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "44ff059d0eb9dac2abbc080d90cf6a46c5eea8f0270b68e6cfd91ccc716cbb2a", kill_on_drop: false }`
[INFO] [stdout] 44ff059d0eb9dac2abbc080d90cf6a46c5eea8f0270b68e6cfd91ccc716cbb2a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 9e6985c0e1d12ee60e181e7931882ec668c2981a5b3c20b507bb54a4d82466af
[INFO] running `Command { std: "docker" "start" "-a" "9e6985c0e1d12ee60e181e7931882ec668c2981a5b3c20b507bb54a4d82466af", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout] running 0 tests
[INFO] [stderr]    --> src/main.rs:193:27
[INFO] [stdout] 
[INFO] [stderr]     |
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr] 193 |     fn surface(&self) -> &Surface;
[INFO] [stdout] 
[INFO] [stderr]     |                           ^^^^^^^ help: use `dyn`: `dyn Surface`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:197:16
[INFO] [stderr]     |
[INFO] [stderr] 197 |     thing: &'a Thing,
[INFO] [stderr]     |                ^^^^^ help: use `dyn`: `dyn Thing`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:232:21
[INFO] [stderr]     |
[INFO] [stderr] 232 |     things: Vec<Box<Thing>>,
[INFO] [stderr]     |                     ^^^^^ help: use `dyn`: `dyn Thing`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:240:18
[INFO] [stderr]     |
[INFO] [stderr] 240 |     surface: Box<Surface>,
[INFO] [stderr]     |                  ^^^^^^^ help: use `dyn`: `dyn Surface`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:244:27
[INFO] [stderr]     |
[INFO] [stderr] 244 |     fn surface(&self) -> &Surface {
[INFO] [stderr]     |                           ^^^^^^^ help: use `dyn`: `dyn Surface`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:275:18
[INFO] [stderr]     |
[INFO] [stderr] 275 |     surface: Box<Surface>,
[INFO] [stderr]     |                  ^^^^^^^ help: use `dyn`: `dyn Surface`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:279:27
[INFO] [stderr]     |
[INFO] [stderr] 279 |     fn surface(&self) -> &Surface {
[INFO] [stderr]     |                           ^^^^^^^ help: use `dyn`: `dyn Surface`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:344:29
[INFO] [stderr]     |
[INFO] [stderr] 344 | fn reflection_color(thing: &Thing, pos: &Vector, dir: &Vector, scene: &Scene, depth: u32) -> Color {
[INFO] [stderr]     |                             ^^^^^ help: use `dyn`: `dyn Thing`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:355:26
[INFO] [stderr]     |
[INFO] [stderr] 355 | fn natural_color(thing: &Thing, pos: &Vector, normal: &Vector, dir: &Vector, scene: &Scene) -> Color {
[INFO] [stderr]     |                          ^^^^^ help: use `dyn`: `dyn Thing`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: `rust-tracerayer` (bin "rust-tracerayer" test) generated 9 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rust_tracerayer-af8d44a1cec8ccfb)
[INFO] running `Command { std: "docker" "inspect" "9e6985c0e1d12ee60e181e7931882ec668c2981a5b3c20b507bb54a4d82466af", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9e6985c0e1d12ee60e181e7931882ec668c2981a5b3c20b507bb54a4d82466af", kill_on_drop: false }`
[INFO] [stdout] 9e6985c0e1d12ee60e181e7931882ec668c2981a5b3c20b507bb54a4d82466af