[INFO] cloning repository https://github.com/joek13/craft
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/joek13/craft" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjoek13%2Fcraft", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjoek13%2Fcraft'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 45879c4cbb733c9a0cd3f21e959c97cc59d3874d
[INFO] testing joek13/craft against 1.90.0 for beta-1.91-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjoek13%2Fcraft" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/joek13/craft
[INFO] finished tweaking git repo https://github.com/joek13/craft
[INFO] tweaked toml for git repo https://github.com/joek13/craft written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/joek13/craft on toolchain 1.90.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/joek13/craft already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded wayland-scanner v0.12.4
[INFO] [stderr]   Downloaded dlib v0.4.0
[INFO] [stderr]   Downloaded wayland-sys v0.12.4
[INFO] [stderr]   Downloaded fuchsia-zircon-sys v0.3.2
[INFO] [stderr]   Downloaded x11-dl v2.17.2
[INFO] [stderr]   Downloaded redox_syscall v0.1.33
[INFO] [stderr]   Downloaded gleam v0.4.17
[INFO] [stderr]   Downloaded num-traits v0.1.41
[INFO] [stderr]   Downloaded cocoa v0.11.0
[INFO] [stderr]   Downloaded wayland-kbd v0.13.0
[INFO] [stderr]   Downloaded glutin v0.11.0
[INFO] [stderr]   Downloaded wayland-protocols v0.12.4
[INFO] [stderr]   Downloaded winit v0.9.0
[INFO] [stderr]   Downloaded rand v0.3.19
[INFO] [stderr]   Downloaded wayland-client v0.12.4
[INFO] [stderr]   Downloaded core-graphics v0.10.0
[INFO] [stderr]   Downloaded memmap v0.6.1
[INFO] [stderr]   Downloaded fuchsia-zircon v0.3.2
[INFO] [stderr]   Downloaded libc v0.2.34
[INFO] [stderr]   Downloaded glium v0.19.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3f3c516fb4269a3d5a6710535f208cf40dead42bbc58edf75c6d28a0c0e86fe0
[INFO] running `Command { std: "docker" "start" "-a" "3f3c516fb4269a3d5a6710535f208cf40dead42bbc58edf75c6d28a0c0e86fe0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3f3c516fb4269a3d5a6710535f208cf40dead42bbc58edf75c6d28a0c0e86fe0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3f3c516fb4269a3d5a6710535f208cf40dead42bbc58edf75c6d28a0c0e86fe0", kill_on_drop: false }`
[INFO] [stdout] 3f3c516fb4269a3d5a6710535f208cf40dead42bbc58edf75c6d28a0c0e86fe0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 762fc4a6b4717910c3f48adb5700f4e240c537f56fb17d1fbebc57fae086c1f6
[INFO] running `Command { std: "docker" "start" "-a" "762fc4a6b4717910c3f48adb5700f4e240c537f56fb17d1fbebc57fae086c1f6", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] [stderr]    Compiling libc v0.2.34
[INFO] [stderr]    Compiling bitflags v1.0.1
[INFO] [stderr]    Compiling siphasher v0.2.2
[INFO] [stderr]    Compiling lazy_static v1.0.0
[INFO] [stderr]    Compiling lazy_static v0.2.11
[INFO] [stderr]    Compiling libloading v0.4.3
[INFO] [stderr]    Compiling serde v0.9.15
[INFO] [stderr]    Compiling dtoa v0.4.2
[INFO] [stderr]    Compiling cfg-if v0.1.2
[INFO] [stderr]    Compiling itoa v0.3.4
[INFO] [stderr]    Compiling num-traits v0.1.41
[INFO] [stderr]    Compiling khronos_api v2.0.0
[INFO] [stderr]    Compiling token_store v0.1.2
[INFO] [stderr]    Compiling bitflags v0.9.1
[INFO] [stderr]    Compiling pkg-config v0.3.9
[INFO] [stderr]    Compiling cc v1.0.3
[INFO] [stderr]    Compiling rustc-demangle v0.1.5
[INFO] [stderr]    Compiling xml-rs v0.7.0
[INFO] [stderr]    Compiling log v0.4.1
[INFO] [stderr]    Compiling xml-rs v0.6.1
[INFO] [stderr]    Compiling smallvec v0.4.4
[INFO] [stderr]    Compiling phf_shared v0.7.21
[INFO] [stderr]    Compiling phf v0.7.21
[INFO] [stderr]    Compiling log v0.3.9
[INFO] [stderr]    Compiling x11-dl v2.17.2
[INFO] [stderr]    Compiling dlib v0.4.0
[INFO] [stderr]    Compiling wayland-sys v0.12.4
[INFO] [stderr]    Compiling rand v0.3.19
[INFO] [stderr]    Compiling memmap v0.6.1
[INFO] [stderr]    Compiling shared_library v0.1.8
[INFO] [stderr]    Compiling osmesa-sys v0.1.2
[INFO] [stderr]    Compiling backtrace-sys v0.1.16
[INFO] [stderr]    Compiling wayland-scanner v0.9.10
[INFO] [stderr]    Compiling wayland-scanner v0.12.4
[INFO] [stderr]    Compiling gl_generator v0.7.0
[INFO] [stderr]    Compiling phf_generator v0.7.21
[INFO] [stderr]    Compiling tempfile v2.2.0
[INFO] [stderr]    Compiling phf_codegen v0.7.21
[INFO] [stderr]    Compiling target_build_utils v0.3.1
[INFO] [stderr]    Compiling wayland-client v0.9.10
[INFO] [stderr]    Compiling wayland-client v0.12.4
[INFO] [stderr]    Compiling wayland-protocols v0.12.4
[INFO] [stderr]    Compiling glutin v0.11.0
[INFO] [stderr]    Compiling glium v0.19.0
[INFO] [stderr]    Compiling wayland-kbd v0.13.0
[INFO] [stderr]    Compiling serde_json v0.9.10
[INFO] [stderr]    Compiling wayland-window v0.13.2
[INFO] [stderr]    Compiling winit v0.9.0
[INFO] [stderr]    Compiling backtrace v0.3.4
[INFO] [stderr]    Compiling libloading v0.3.4
[INFO] [stderr]    Compiling dlib v0.3.1
[INFO] [stderr]    Compiling wayland-sys v0.9.10
[INFO] [stderr]    Compiling craft v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]  --> src/vertex.rs:6:1
[INFO] [stdout]   |
[INFO] [stdout] 6 | implement_vertex!(Vertex, position);
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(deprecated)]` on by default
[INFO] [stdout]   = note: this warning originates in the macro `implement_vertex` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:22:9
[INFO] [stdout]    |
[INFO] [stdout] 22 |     let mut world = World::new(&display);
[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: fields `blocks` and `vertices` are never read
[INFO] [stdout]   --> src/world.rs:30:9
[INFO] [stdout]    |
[INFO] [stdout] 29 | pub struct Chunk {
[INFO] [stdout]    |            ----- fields in this struct
[INFO] [stdout] 30 |     pub blocks: [[[Block; CHUNK_SIZE]; CHUNK_HEIGHT]; CHUNK_SIZE],
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout] 31 |     vertices: VertexBuffer<Vertex>,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `get_block` and `update_vertices` are never used
[INFO] [stdout]   --> src/world.rs:48:12
[INFO] [stdout]    |
[INFO] [stdout] 33 | impl Chunk {
[INFO] [stdout]    | ---------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 48 |     pub fn get_block(&self, x: usize, y: usize, z: usize) -> Block {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 52 |     pub fn update_vertices(&mut self) {}
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `BLOCK_COLORS` is never used
[INFO] [stdout]   --> src/world.rs:64:7
[INFO] [stdout]    |
[INFO] [stdout] 64 | const BLOCK_COLORS: [(f32, f32, f32, f32); 3] = [
[INFO] [stdout]    |       ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:46:9
[INFO] [stdout]    |
[INFO] [stdout] 46 |         target.finish();
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 46 |         let _ = target.finish();
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 31.00s
[INFO] running `Command { std: "docker" "inspect" "762fc4a6b4717910c3f48adb5700f4e240c537f56fb17d1fbebc57fae086c1f6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "762fc4a6b4717910c3f48adb5700f4e240c537f56fb17d1fbebc57fae086c1f6", kill_on_drop: false }`
[INFO] [stdout] 762fc4a6b4717910c3f48adb5700f4e240c537f56fb17d1fbebc57fae086c1f6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f9a9b7840a761418d89b8349630ad912562f9cf56e875463b00a0334f799eefc
[INFO] running `Command { std: "docker" "start" "-a" "f9a9b7840a761418d89b8349630ad912562f9cf56e875463b00a0334f799eefc", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] [stderr]    Compiling craft v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]  --> src/vertex.rs:6:1
[INFO] [stdout]   |
[INFO] [stdout] 6 | implement_vertex!(Vertex, position);
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(deprecated)]` on by default
[INFO] [stdout]   = note: this warning originates in the macro `implement_vertex` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:22:9
[INFO] [stdout]    |
[INFO] [stdout] 22 |     let mut world = World::new(&display);
[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: fields `blocks` and `vertices` are never read
[INFO] [stdout]   --> src/world.rs:30:9
[INFO] [stdout]    |
[INFO] [stdout] 29 | pub struct Chunk {
[INFO] [stdout]    |            ----- fields in this struct
[INFO] [stdout] 30 |     pub blocks: [[[Block; CHUNK_SIZE]; CHUNK_HEIGHT]; CHUNK_SIZE],
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout] 31 |     vertices: VertexBuffer<Vertex>,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `get_block` and `update_vertices` are never used
[INFO] [stdout]   --> src/world.rs:48:12
[INFO] [stdout]    |
[INFO] [stdout] 33 | impl Chunk {
[INFO] [stdout]    | ---------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 48 |     pub fn get_block(&self, x: usize, y: usize, z: usize) -> Block {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 52 |     pub fn update_vertices(&mut self) {}
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `BLOCK_COLORS` is never used
[INFO] [stdout]   --> src/world.rs:64:7
[INFO] [stdout]    |
[INFO] [stdout] 64 | const BLOCK_COLORS: [(f32, f32, f32, f32); 3] = [
[INFO] [stdout]    |       ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:46:9
[INFO] [stdout]    |
[INFO] [stdout] 46 |         target.finish();
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 46 |         let _ = target.finish();
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.36s
[INFO] running `Command { std: "docker" "inspect" "f9a9b7840a761418d89b8349630ad912562f9cf56e875463b00a0334f799eefc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f9a9b7840a761418d89b8349630ad912562f9cf56e875463b00a0334f799eefc", kill_on_drop: false }`
[INFO] [stdout] f9a9b7840a761418d89b8349630ad912562f9cf56e875463b00a0334f799eefc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 9320225c8ab52a93476d0fa37d471ce84b276a7b6d108fba54806d73f7eae8f4
[INFO] running `Command { std: "docker" "start" "-a" "9320225c8ab52a93476d0fa37d471ce84b276a7b6d108fba54806d73f7eae8f4", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] [stderr] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stderr]  --> src/vertex.rs:6:1
[INFO] [stderr]   |
[INFO] [stderr] 6 | implement_vertex!(Vertex, position);
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(deprecated)]` on by default
[INFO] [stderr]   = note: this warning originates in the macro `implement_vertex` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:22:9
[INFO] [stderr]    |
[INFO] [stderr] 22 |     let mut world = World::new(&display);
[INFO] [stderr]    |         ----^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: fields `blocks` and `vertices` are never read
[INFO] [stderr]   --> src/world.rs:30:9
[INFO] [stderr]    |
[INFO] [stderr] 29 | pub struct Chunk {
[INFO] [stderr]    |            ----- fields in this struct
[INFO] [stderr] 30 |     pub blocks: [[[Block; CHUNK_SIZE]; CHUNK_HEIGHT]; CHUNK_SIZE],
[INFO] [stderr]    |         ^^^^^^
[INFO] [stderr] 31 |     vertices: VertexBuffer<Vertex>,
[INFO] [stderr]    |     ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: methods `get_block` and `update_vertices` are never used
[INFO] [stderr]   --> src/world.rs:48:12
[INFO] [stderr]    |
[INFO] [stderr] 33 | impl Chunk {
[INFO] [stderr]    | ---------- methods in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 48 |     pub fn get_block(&self, x: usize, y: usize, z: usize) -> Block {
[INFO] [stderr]    |            ^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 52 |     pub fn update_vertices(&mut self) {}
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant `BLOCK_COLORS` is never used
[INFO] [stderr]   --> src/world.rs:64:7
[INFO] [stderr]    |
[INFO] [stderr] 64 | const BLOCK_COLORS: [(f32, f32, f32, f32); 3] = [
[INFO] [stderr]    |       ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]   --> src/main.rs:46:9
[INFO] [stderr]    |
[INFO] [stderr] 46 |         target.finish();
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]    |
[INFO] [stderr] 46 |         let _ = target.finish();
[INFO] [stderr]    |         +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: `craft` (bin "craft" test) generated 6 warnings (run `cargo fix --bin "craft" --tests` to apply 1 suggestion)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.09s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/craft-50f6a26797519f20)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "9320225c8ab52a93476d0fa37d471ce84b276a7b6d108fba54806d73f7eae8f4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9320225c8ab52a93476d0fa37d471ce84b276a7b6d108fba54806d73f7eae8f4", kill_on_drop: false }`
[INFO] [stdout] 9320225c8ab52a93476d0fa37d471ce84b276a7b6d108fba54806d73f7eae8f4
