[INFO] cloning repository https://github.com/kilork/abctracer
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kilork/abctracer" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkilork%2Fabctracer", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkilork%2Fabctracer'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 96f8d00996bbd6e5d056b13a1c2753114e70bc77
[INFO] checking kilork/abctracer against 1.55.0 for beta-1.56-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkilork%2Fabctracer" "/workspace/builds/worker-30/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-30/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/kilork/abctracer 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/kilork/abctracer
[INFO] finished tweaking git repo https://github.com/kilork/abctracer
[INFO] tweaked toml for git repo https://github.com/kilork/abctracer written to /workspace/builds/worker-30/source/Cargo.toml
[INFO] crate git repo https://github.com/kilork/abctracer 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-30/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-30/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] f367690b4bd48be575cf0a78b7fff6a25e2e4d3e6c84c8308a98535d941afa8e
[INFO] running `Command { std: "docker" "start" "-a" "f367690b4bd48be575cf0a78b7fff6a25e2e4d3e6c84c8308a98535d941afa8e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f367690b4bd48be575cf0a78b7fff6a25e2e4d3e6c84c8308a98535d941afa8e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f367690b4bd48be575cf0a78b7fff6a25e2e4d3e6c84c8308a98535d941afa8e", kill_on_drop: false }`
[INFO] [stdout] f367690b4bd48be575cf0a78b7fff6a25e2e4d3e6c84c8308a98535d941afa8e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-30/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-30/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" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f5b98abe9e4a9ac36d4de0a343aa262863de4b3253061507295e9efd4c489499
[INFO] running `Command { std: "docker" "start" "-a" "f5b98abe9e4a9ac36d4de0a343aa262863de4b3253061507295e9efd4c489499", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking abctracer v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/render/mod.rs:17:19
[INFO] [stdout]    |
[INFO] [stdout] 17 |     backend: &mut RenderBackend,
[INFO] [stdout]    |                   ^^^^^^^^^^^^^ help: use `dyn`: `dyn RenderBackend`
[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/render/mod.rs:56:19
[INFO] [stdout]    |
[INFO] [stdout] 56 |     backend: &mut RenderBackend,
[INFO] [stdout]    |                   ^^^^^^^^^^^^^ help: use `dyn`: `dyn RenderBackend`
[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/render/mod.rs:111:19
[INFO] [stdout]     |
[INFO] [stdout] 111 |     backend: &mut RenderBackend,
[INFO] [stdout]     |                   ^^^^^^^^^^^^^ help: use `dyn`: `dyn RenderBackend`
[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/environment.rs:18:21
[INFO] [stdout]    |
[INFO] [stdout] 18 |     lights: Vec<&'a LightSource>,
[INFO] [stdout]    |                     ^^^^^^^^^^^ help: use `dyn`: `dyn LightSource`
[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/environment.rs:19:21
[INFO] [stdout]    |
[INFO] [stdout] 19 |     solids: Vec<&'a GObject>,
[INFO] [stdout]    |                     ^^^^^^^ help: use `dyn`: `dyn GObject`
[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/environment.rs:54:44
[INFO] [stdout]    |
[INFO] [stdout] 54 |     pub fn add_solid(&mut self, solid: &'a GObject) {
[INFO] [stdout]    |                                            ^^^^^^^ help: use `dyn`: `dyn GObject`
[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/environment.rs:58:44
[INFO] [stdout]    |
[INFO] [stdout] 58 |     pub fn add_light(&mut self, light: &'a LightSource) {
[INFO] [stdout]    |                                            ^^^^^^^^^^^ help: use `dyn`: `dyn LightSource`
[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/environment.rs:62:71
[INFO] [stdout]    |
[INFO] [stdout] 62 |     pub fn intersect(&self, ray: &Ray, distance: &mut f64) -> Option<&GObject> {
[INFO] [stdout]    |                                                                       ^^^^^^^ help: use `dyn`: `dyn GObject`
[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/environment.rs:143:17
[INFO] [stdout]     |
[INFO] [stdout] 143 |         solid: &GObject,
[INFO] [stdout]     |                 ^^^^^^^ help: use `dyn`: `dyn GObject`
[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/render/mod.rs:17:19
[INFO] [stdout]    |
[INFO] [stdout] 17 |     backend: &mut RenderBackend,
[INFO] [stdout]    |                   ^^^^^^^^^^^^^ help: use `dyn`: `dyn RenderBackend`
[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/render/mod.rs:56:19
[INFO] [stdout]    |
[INFO] [stdout] 56 |     backend: &mut RenderBackend,
[INFO] [stdout]    |                   ^^^^^^^^^^^^^ help: use `dyn`: `dyn RenderBackend`
[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/render/mod.rs:111:19
[INFO] [stdout]     |
[INFO] [stdout] 111 |     backend: &mut RenderBackend,
[INFO] [stdout]     |                   ^^^^^^^^^^^^^ help: use `dyn`: `dyn RenderBackend`
[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/environment.rs:18:21
[INFO] [stdout]    |
[INFO] [stdout] 18 |     lights: Vec<&'a LightSource>,
[INFO] [stdout]    |                     ^^^^^^^^^^^ help: use `dyn`: `dyn LightSource`
[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/environment.rs:19:21
[INFO] [stdout]    |
[INFO] [stdout] 19 |     solids: Vec<&'a GObject>,
[INFO] [stdout]    |                     ^^^^^^^ help: use `dyn`: `dyn GObject`
[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/environment.rs:54:44
[INFO] [stdout]    |
[INFO] [stdout] 54 |     pub fn add_solid(&mut self, solid: &'a GObject) {
[INFO] [stdout]    |                                            ^^^^^^^ help: use `dyn`: `dyn GObject`
[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/environment.rs:58:44
[INFO] [stdout]    |
[INFO] [stdout] 58 |     pub fn add_light(&mut self, light: &'a LightSource) {
[INFO] [stdout]    |                                            ^^^^^^^^^^^ help: use `dyn`: `dyn LightSource`
[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/environment.rs:62:71
[INFO] [stdout]    |
[INFO] [stdout] 62 |     pub fn intersect(&self, ray: &Ray, distance: &mut f64) -> Option<&GObject> {
[INFO] [stdout]    |                                                                       ^^^^^^^ help: use `dyn`: `dyn GObject`
[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/environment.rs:143:17
[INFO] [stdout]     |
[INFO] [stdout] 143 |         solid: &GObject,
[INFO] [stdout]     |                 ^^^^^^^ help: use `dyn`: `dyn GObject`
[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: unused variable: `p`
[INFO] [stdout]   --> src/geometry/plane.rs:55:27
[INFO] [stdout]    |
[INFO] [stdout] 55 |     fn find_normal(&self, p: &Vector) -> Vector {
[INFO] [stdout]    |                           ^ help: if this is intentional, prefix it with an underscore: `_p`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `p`
[INFO] [stdout]   --> src/geometry/rect.rs:67:27
[INFO] [stdout]    |
[INFO] [stdout] 67 |     fn find_normal(&self, p: &Vector) -> Vector {
[INFO] [stdout]    |                           ^ help: if this is intentional, prefix it with an underscore: `_p`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ray`
[INFO] [stdout]   --> src/environment.rs:77:32
[INFO] [stdout]    |
[INFO] [stdout] 77 |     fn shade_background(&self, ray: &Ray) -> Color {
[INFO] [stdout]    |                                ^^^ help: if this is intentional, prefix it with an underscore: `_ray`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `p`
[INFO] [stdout]   --> src/geometry/plane.rs:55:27
[INFO] [stdout]    |
[INFO] [stdout] 55 |     fn find_normal(&self, p: &Vector) -> Vector {
[INFO] [stdout]    |                           ^ help: if this is intentional, prefix it with an underscore: `_p`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `p`
[INFO] [stdout]   --> src/geometry/rect.rs:67:27
[INFO] [stdout]    |
[INFO] [stdout] 67 |     fn find_normal(&self, p: &Vector) -> Vector {
[INFO] [stdout]    |                           ^ help: if this is intentional, prefix it with an underscore: `_p`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ray`
[INFO] [stdout]   --> src/environment.rs:77:32
[INFO] [stdout]    |
[INFO] [stdout] 77 |     fn shade_background(&self, ray: &Ray) -> Color {
[INFO] [stdout]    |                                ^^^ help: if this is intentional, prefix it with an underscore: `_ray`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/vector.rs:584:13
[INFO] [stdout]     |
[INFO] [stdout] 584 |         let mut v = Vector {
[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: field is never read: `buffer`
[INFO] [stdout]  --> src/render/backend/dummy.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     buffer: [u8; DEFAULT_BUFFER_SIZE],
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `side_a`
[INFO] [stdout]  --> src/geometry/rect.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     side_a: Vector,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `side_b`
[INFO] [stdout]  --> src/geometry/rect.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     side_b: Vector,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `loc`
[INFO] [stdout]  --> src/geometry/_box.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 |     loc: Vector,
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `e1`
[INFO] [stdout]   --> src/geometry/_box.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     e1: Vector,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `e2`
[INFO] [stdout]   --> src/geometry/_box.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     e2: Vector,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `e3`
[INFO] [stdout]   --> src/geometry/_box.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     e3: Vector,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `radius`
[INFO] [stdout]   --> src/geometry/cylinder.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 |     radius: f64,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `buffer`
[INFO] [stdout]  --> src/render/backend/dummy.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     buffer: [u8; DEFAULT_BUFFER_SIZE],
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `side_a`
[INFO] [stdout]  --> src/geometry/rect.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     side_a: Vector,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `side_b`
[INFO] [stdout]  --> src/geometry/rect.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     side_b: Vector,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `loc`
[INFO] [stdout]  --> src/geometry/_box.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 |     loc: Vector,
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `e1`
[INFO] [stdout]   --> src/geometry/_box.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     e1: Vector,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `e2`
[INFO] [stdout]   --> src/geometry/_box.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     e2: Vector,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `e3`
[INFO] [stdout]   --> src/geometry/_box.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     e3: Vector,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `radius`
[INFO] [stdout]   --> src/geometry/cylinder.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 |     radius: f64,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 20 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 21 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> benches/render.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(test)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `test::Bencher`
[INFO] [stdout]   --> benches/render.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 10 |     use test::Bencher;
[INFO] [stdout]    |         ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `abctracer` due to 2 previous errors; 1 warning emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "f5b98abe9e4a9ac36d4de0a343aa262863de4b3253061507295e9efd4c489499", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f5b98abe9e4a9ac36d4de0a343aa262863de4b3253061507295e9efd4c489499", kill_on_drop: false }`
[INFO] [stdout] f5b98abe9e4a9ac36d4de0a343aa262863de4b3253061507295e9efd4c489499
