[INFO] fetching crate dotrix_core 0.5.2...
[INFO] checking dotrix_core-0.5.2 against master#30f74ff0dc4d66debc8b50724c446f817e5f75f4 for pr-121848-1
[INFO] extracting crate dotrix_core 0.5.2 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate dotrix_core 0.5.2 on toolchain 30f74ff0dc4d66debc8b50724c446f817e5f75f4
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+30f74ff0dc4d66debc8b50724c446f817e5f75f4" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate dotrix_core 0.5.2
[INFO] finished tweaking crates.io crate dotrix_core 0.5.2
[INFO] tweaked toml for crates.io crate dotrix_core 0.5.2 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+30f74ff0dc4d66debc8b50724c446f817e5f75f4" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+30f74ff0dc4d66debc8b50724c446f817e5f75f4" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+30f74ff0dc4d66debc8b50724c446f817e5f75f4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "start" "-a" "be66648f39db63f76b505ffdfeef54a0ce1b4ba63ab7f7da995627f730566a6f", kill_on_drop: false }`
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[INFO] [stdout] warning: the item `From` is imported redundantly
[INFO] [stdout]  --> src/color.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::convert::From;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/30f74ff0dc4d66debc8b50724c446f817e5f75f4/library/std/src/prelude/mod.rs:115:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `From` is already defined here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Vec` is imported redundantly
[INFO] [stdout]  --> src/world.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 |     vec::Vec,
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout]  --> /rustc/30f74ff0dc4d66debc8b50724c446f817e5f75f4/library/std/src/prelude/mod.rs:115:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `Vec` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Vec` is imported redundantly
[INFO] [stdout]   --> src/assets.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 22 |     vec::Vec,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]   --> /rustc/30f74ff0dc4d66debc8b50724c446f817e5f75f4/library/std/src/prelude/mod.rs:115:13
[INFO] [stdout]    |
[INFO] [stdout]    = note: the item `Vec` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `From` is imported redundantly
[INFO] [stdout]  --> src/color.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::convert::From;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/30f74ff0dc4d66debc8b50724c446f817e5f75f4/library/std/src/prelude/mod.rs:115:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `From` is already defined here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Vec` is imported redundantly
[INFO] [stdout]  --> src/world.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 |     vec::Vec,
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout]  --> /rustc/30f74ff0dc4d66debc8b50724c446f817e5f75f4/library/std/src/prelude/mod.rs:115:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `Vec` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `wgpu` is imported redundantly
[INFO] [stdout]  --> src/renderer/backend.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use wgpu;
[INFO] [stdout]   |     ^^^^ the item `wgpu` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `winit` is imported redundantly
[INFO] [stdout]  --> src/renderer/backend.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use winit;
[INFO] [stdout]   |     ^^^^^ the item `winit` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Vec` is imported redundantly
[INFO] [stdout]   --> src/assets.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 22 |     vec::Vec,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]   --> /rustc/30f74ff0dc4d66debc8b50724c446f817e5f75f4/library/std/src/prelude/mod.rs:115:13
[INFO] [stdout]    |
[INFO] [stdout]    = note: the item `Vec` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `wgpu` is imported redundantly
[INFO] [stdout]  --> src/renderer/backend.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use wgpu;
[INFO] [stdout]   |     ^^^^ the item `wgpu` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `winit` is imported redundantly
[INFO] [stdout]  --> src/renderer/backend.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use winit;
[INFO] [stdout]   |     ^^^^^ the item `winit` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/assets/skin.rs:100:18
[INFO] [stdout]     |
[INFO] [stdout] 100 |             for (mut joint_index, matrix) in index.iter_mut().zip(inverse_bind_matrices.iter()) {
[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: variable does not need to be mutable
[INFO] [stdout]    --> src/assets/skin.rs:100:18
[INFO] [stdout]     |
[INFO] [stdout] 100 |             for (mut joint_index, matrix) in index.iter_mut().zip(inverse_bind_matrices.iter()) {
[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 `0` is never read
[INFO] [stdout]   --> src/world/container.rs:91:18
[INFO] [stdout]    |
[INFO] [stdout] 91 |     struct Item2(u32);
[INFO] [stdout]    |            ----- ^^^
[INFO] [stdout]    |            |
[INFO] [stdout]    |            field in this struct
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 91 |     struct Item2(());
[INFO] [stdout]    |                  ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/world.rs:381:19
[INFO] [stdout]     |
[INFO] [stdout] 381 |     struct Health(u32);
[INFO] [stdout]     |            ------ ^^^
[INFO] [stdout]     |            |
[INFO] [stdout]     |            field in this struct
[INFO] [stdout]     |
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]     |
[INFO] [stdout] 381 |     struct Health(());
[INFO] [stdout]     |                   ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/world.rs:384:19
[INFO] [stdout]     |
[INFO] [stdout] 384 |     struct Weight(u32);
[INFO] [stdout]     |            ------ ^^^
[INFO] [stdout]     |            |
[INFO] [stdout]     |            field in this struct
[INFO] [stdout]     |
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]     |
[INFO] [stdout] 384 |     struct Weight(());
[INFO] [stdout]     |                   ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/ecs.rs:379:24
[INFO] [stdout]     |
[INFO] [stdout] 379 |     struct MyComponent(u64);
[INFO] [stdout]     |            ----------- ^^^
[INFO] [stdout]     |            |
[INFO] [stdout]     |            field in this struct
[INFO] [stdout]     |
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]     |
[INFO] [stdout] 379 |     struct MyComponent(());
[INFO] [stdout]     |                        ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: casting `&T` to `&mut T` is undefined behavior, even if the reference is unused, consider instead using an `UnsafeCell`
[INFO] [stdout]   --> src/world/container.rs:60:21
[INFO] [stdout]    |
[INFO] [stdout] 59 |                     let mut_ptr = vec_ptr as *mut Vec<T>;
[INFO] [stdout]    |                                   ---------------------- casting happend here
[INFO] [stdout] 60 |                     &mut *mut_ptr
[INFO] [stdout]    |                     ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: for more information, visit <https://doc.rust-lang.org/book/ch15-05-interior-mutability.html>
[INFO] [stdout]    = note: `#[deny(invalid_reference_casting)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: casting `&T` to `&mut T` is undefined behavior, even if the reference is unused, consider instead using an `UnsafeCell`
[INFO] [stdout]   --> src/world/container.rs:60:21
[INFO] [stdout]    |
[INFO] [stdout] 59 |                     let mut_ptr = vec_ptr as *mut Vec<T>;
[INFO] [stdout]    |                                   ---------------------- casting happend here
[INFO] [stdout] 60 |                     &mut *mut_ptr
[INFO] [stdout]    |                     ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: for more information, visit <https://doc.rust-lang.org/book/ch15-05-interior-mutability.html>
[INFO] [stdout]    = note: `#[deny(invalid_reference_casting)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error; 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error; 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `dotrix_core` (lib test) due to 2 previous errors; 10 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `dotrix_core` (lib) due to 2 previous errors; 6 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "30aa17ea297e2578c19874d03006cee75a8b1f919f18fa240d0616635b664ed8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "30aa17ea297e2578c19874d03006cee75a8b1f919f18fa240d0616635b664ed8", kill_on_drop: false }`
[INFO] [stdout] 30aa17ea297e2578c19874d03006cee75a8b1f919f18fa240d0616635b664ed8
[INFO] checking dotrix_core-0.5.2 against try#72eda894eb3548c7ba774079ce0afab42958d4ee for pr-121848-1
[INFO] extracting crate dotrix_core 0.5.2 into /workspace/builds/worker-4-tc2/source
[INFO] validating manifest of crates.io crate dotrix_core 0.5.2 on toolchain 72eda894eb3548c7ba774079ce0afab42958d4ee
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+72eda894eb3548c7ba774079ce0afab42958d4ee" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate dotrix_core 0.5.2
[INFO] finished tweaking crates.io crate dotrix_core 0.5.2
[INFO] tweaked toml for crates.io crate dotrix_core 0.5.2 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+72eda894eb3548c7ba774079ce0afab42958d4ee" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+72eda894eb3548c7ba774079ce0afab42958d4ee" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] [stdout] c097fe39ee641af9617d60cf556cb2778a2dead04f10f344070891144bdfb61d
[INFO] running `Command { std: "docker" "start" "-a" "c097fe39ee641af9617d60cf556cb2778a2dead04f10f344070891144bdfb61d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c097fe39ee641af9617d60cf556cb2778a2dead04f10f344070891144bdfb61d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c097fe39ee641af9617d60cf556cb2778a2dead04f10f344070891144bdfb61d", kill_on_drop: false }`
[INFO] [stdout] c097fe39ee641af9617d60cf556cb2778a2dead04f10f344070891144bdfb61d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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" "RUSTDOCFLAGS=--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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+72eda894eb3548c7ba774079ce0afab42958d4ee" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a99b12089124b3bd7d3729cd289b34e8f58916a7710b508b4ca68bdaf435d027
[INFO] running `Command { std: "docker" "start" "-a" "a99b12089124b3bd7d3729cd289b34e8f58916a7710b508b4ca68bdaf435d027", kill_on_drop: false }`
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[INFO] [stderr]     Checking mio-misc v1.2.2
[INFO] [stderr]     Checking futures-executor v0.3.30
[INFO] [stderr]     Checking thread-id v3.3.0
[INFO] [stderr]     Checking percent-encoding v2.3.1
[INFO] [stderr]     Checking base64 v0.11.0
[INFO] [stderr]     Checking futures v0.3.30
[INFO] [stderr]     Checking dotrix_math v0.4.0
[INFO] [stderr]     Checking arrayvec v0.5.2
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[INFO] [stderr]     Checking tracing-subscriber v0.2.25
[INFO] [stderr]     Checking smithay-client-toolkit v0.12.3
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[INFO] [stderr]     Checking gfx-backend-gl v0.9.0
[INFO] [stderr]     Checking wgpu-subscriber v0.1.0
[INFO] [stderr]     Checking gltf v0.15.2
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[INFO] [stderr]     Checking dotrix_core v0.5.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `From` is imported redundantly
[INFO] [stdout]  --> src/color.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::convert::From;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/72eda894eb3548c7ba774079ce0afab42958d4ee/library/std/src/prelude/mod.rs:115:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `From` is already defined here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Vec` is imported redundantly
[INFO] [stdout]  --> src/world.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 |     vec::Vec,
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout]  --> /rustc/72eda894eb3548c7ba774079ce0afab42958d4ee/library/std/src/prelude/mod.rs:115:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `Vec` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Vec` is imported redundantly
[INFO] [stdout]   --> src/assets.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 22 |     vec::Vec,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]   --> /rustc/72eda894eb3548c7ba774079ce0afab42958d4ee/library/std/src/prelude/mod.rs:115:13
[INFO] [stdout]    |
[INFO] [stdout]    = note: the item `Vec` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `wgpu` is imported redundantly
[INFO] [stdout]  --> src/renderer/backend.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use wgpu;
[INFO] [stdout]   |     ^^^^ the item `wgpu` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `winit` is imported redundantly
[INFO] [stdout]  --> src/renderer/backend.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use winit;
[INFO] [stdout]   |     ^^^^^ the item `winit` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `From` is imported redundantly
[INFO] [stdout]  --> src/color.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::convert::From;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/72eda894eb3548c7ba774079ce0afab42958d4ee/library/std/src/prelude/mod.rs:115:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `From` is already defined here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Vec` is imported redundantly
[INFO] [stdout]  --> src/world.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 |     vec::Vec,
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout]  --> /rustc/72eda894eb3548c7ba774079ce0afab42958d4ee/library/std/src/prelude/mod.rs:115:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `Vec` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Vec` is imported redundantly
[INFO] [stdout]   --> src/assets.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 22 |     vec::Vec,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]   --> /rustc/72eda894eb3548c7ba774079ce0afab42958d4ee/library/std/src/prelude/mod.rs:115:13
[INFO] [stdout]    |
[INFO] [stdout]    = note: the item `Vec` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `wgpu` is imported redundantly
[INFO] [stdout]  --> src/renderer/backend.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use wgpu;
[INFO] [stdout]   |     ^^^^ the item `wgpu` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `winit` is imported redundantly
[INFO] [stdout]  --> src/renderer/backend.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use winit;
[INFO] [stdout]   |     ^^^^^ the item `winit` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/assets/skin.rs:100:18
[INFO] [stdout]     |
[INFO] [stdout] 100 |             for (mut joint_index, matrix) in index.iter_mut().zip(inverse_bind_matrices.iter()) {
[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: variable does not need to be mutable
[INFO] [stdout]    --> src/assets/skin.rs:100:18
[INFO] [stdout]     |
[INFO] [stdout] 100 |             for (mut joint_index, matrix) in index.iter_mut().zip(inverse_bind_matrices.iter()) {
[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] error: casting `&T` to `&mut T` is undefined behavior, even if the reference is unused, consider instead using an `UnsafeCell`
[INFO] [stdout]   --> src/world/container.rs:60:21
[INFO] [stdout]    |
[INFO] [stdout] 59 |                     let mut_ptr = vec_ptr as *mut Vec<T>;
[INFO] [stdout]    |                                   ---------------------- casting happend here
[INFO] [stdout] 60 |                     &mut *mut_ptr
[INFO] [stdout]    |                     ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: for more information, visit <https://doc.rust-lang.org/book/ch15-05-interior-mutability.html>
[INFO] [stdout]    = note: `#[deny(invalid_reference_casting)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error; 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `dotrix_core` (lib) due to 2 previous errors; 6 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/world/container.rs:91:18
[INFO] [stdout]    |
[INFO] [stdout] 91 |     struct Item2(u32);
[INFO] [stdout]    |            ----- ^^^
[INFO] [stdout]    |            |
[INFO] [stdout]    |            field in this struct
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 91 |     struct Item2(());
[INFO] [stdout]    |                  ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/world.rs:381:19
[INFO] [stdout]     |
[INFO] [stdout] 381 |     struct Health(u32);
[INFO] [stdout]     |            ------ ^^^
[INFO] [stdout]     |            |
[INFO] [stdout]     |            field in this struct
[INFO] [stdout]     |
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]     |
[INFO] [stdout] 381 |     struct Health(());
[INFO] [stdout]     |                   ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/world.rs:384:19
[INFO] [stdout]     |
[INFO] [stdout] 384 |     struct Weight(u32);
[INFO] [stdout]     |            ------ ^^^
[INFO] [stdout]     |            |
[INFO] [stdout]     |            field in this struct
[INFO] [stdout]     |
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]     |
[INFO] [stdout] 384 |     struct Weight(());
[INFO] [stdout]     |                   ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/ecs.rs:379:24
[INFO] [stdout]     |
[INFO] [stdout] 379 |     struct MyComponent(u64);
[INFO] [stdout]     |            ----------- ^^^
[INFO] [stdout]     |            |
[INFO] [stdout]     |            field in this struct
[INFO] [stdout]     |
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]     |
[INFO] [stdout] 379 |     struct MyComponent(());
[INFO] [stdout]     |                        ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: casting `&T` to `&mut T` is undefined behavior, even if the reference is unused, consider instead using an `UnsafeCell`
[INFO] [stdout]   --> src/world/container.rs:60:21
[INFO] [stdout]    |
[INFO] [stdout] 59 |                     let mut_ptr = vec_ptr as *mut Vec<T>;
[INFO] [stdout]    |                                   ---------------------- casting happend here
[INFO] [stdout] 60 |                     &mut *mut_ptr
[INFO] [stdout]    |                     ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: for more information, visit <https://doc.rust-lang.org/book/ch15-05-interior-mutability.html>
[INFO] [stdout]    = note: `#[deny(invalid_reference_casting)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error; 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `dotrix_core` (lib test) due to 2 previous errors; 10 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "a99b12089124b3bd7d3729cd289b34e8f58916a7710b508b4ca68bdaf435d027", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a99b12089124b3bd7d3729cd289b34e8f58916a7710b508b4ca68bdaf435d027", kill_on_drop: false }`
[INFO] [stdout] a99b12089124b3bd7d3729cd289b34e8f58916a7710b508b4ca68bdaf435d027
