[INFO] cloning repository https://github.com/Levijatan/Voxel-Render
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Levijatan/Voxel-Render" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLevijatan%2FVoxel-Render", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLevijatan%2FVoxel-Render'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2534efde5fb42dc91e4b8c88c0f7c62823e9953f
[INFO] building Levijatan/Voxel-Render against master#c7f6aa2869acdbf014d094c6e427e554e160b6db for pr-146237-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLevijatan%2FVoxel-Render" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/Levijatan/Voxel-Render
[INFO] finished tweaking git repo https://github.com/Levijatan/Voxel-Render
[INFO] tweaked toml for git repo https://github.com/Levijatan/Voxel-Render written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Levijatan/Voxel-Render on toolchain c7f6aa2869acdbf014d094c6e427e554e160b6db
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/Levijatan/Voxel-Render 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" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Updating git repository `https://github.com/bjz/glfw-rs.git`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded simba v0.2.0
[INFO] [stderr]   Downloaded nalgebra-glm v0.8.0
[INFO] [stderr]   Downloaded num-traits v0.2.12
[INFO] [stderr]   Downloaded proc-macro-hack v0.5.18
[INFO] [stderr]   Downloaded paste-impl v0.1.18
[INFO] [stderr]   Downloaded paste v0.1.18
[INFO] [stderr]   Downloaded thread-id v3.3.0
[INFO] [stderr]   Downloaded proc-macro2 v1.0.23
[INFO] [stderr]   Downloaded log v0.4.11
[INFO] [stderr]   Downloaded dashmap v3.11.10
[INFO] [stderr]   Downloaded const-random v0.1.8
[INFO] [stderr]   Downloaded tiff v0.5.0
[INFO] [stderr]   Downloaded const-random-macro v0.1.8
[INFO] [stderr]   Downloaded ppv-lite86 v0.2.9
[INFO] [stderr]   Downloaded itoa v0.4.6
[INFO] [stderr]   Downloaded gl v0.14.0
[INFO] [stderr]   Downloaded quote v1.0.7
[INFO] [stderr]   Downloaded cc v1.0.59
[INFO] [stderr]   Downloaded serde_derive v1.0.116
[INFO] [stderr]   Downloaded flame v0.2.2
[INFO] [stderr]   Downloaded crossbeam-channel v0.4.4
[INFO] [stderr]   Downloaded syn v1.0.42
[INFO] [stderr]   Downloaded image v0.23.9
[INFO] [stderr]   Downloaded jpeg-decoder v0.1.20
[INFO] [stderr]   Downloaded nalgebra v0.22.0
[INFO] [stderr]   Downloaded png v0.16.7
[INFO] [stderr]   Downloaded bytemuck v1.4.1
[INFO] [stderr]   Downloaded rayon-core v1.8.1
[INFO] [stderr]   Downloaded num-integer v0.1.43
[INFO] [stderr]   Downloaded rayon v1.4.0
[INFO] [stderr]   Downloaded cmake v0.1.44
[INFO] [stderr]   Downloaded num-iter v0.1.41
[INFO] [stderr]   Downloaded num-rational v0.3.0
[INFO] [stderr]   Downloaded glfw-sys v3.3.2
[INFO] [stderr]   Downloaded generic-array v0.13.2
[INFO] [stderr]   Downloaded serde v1.0.116
[INFO] [stderr]   Downloaded serde_json v1.0.57
[INFO] [stderr]   Downloaded flamer v0.3.0
[INFO] [stderr]   Downloaded ahash v0.3.8
[INFO] [stderr]   Downloaded memoffset v0.5.5
[INFO] [stderr]   Downloaded hermit-abi v0.1.15
[INFO] [stderr]   Downloaded matrixmultiply v0.2.3
[INFO] [stderr]   Downloaded getrandom v0.1.15
[INFO] [stderr]   Downloaded rand_distr v0.2.2
[INFO] [stderr]   Downloaded libc v0.2.76
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bff7841412c51dc11e3fccb4202b6c8812d05c8437fc154899efda665025381d
[INFO] running `Command { std: "docker" "start" "-a" "bff7841412c51dc11e3fccb4202b6c8812d05c8437fc154899efda665025381d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bff7841412c51dc11e3fccb4202b6c8812d05c8437fc154899efda665025381d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bff7841412c51dc11e3fccb4202b6c8812d05c8437fc154899efda665025381d", kill_on_drop: false }`
[INFO] [stdout] bff7841412c51dc11e3fccb4202b6c8812d05c8437fc154899efda665025381d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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=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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 844729fa63adab9cdc8bbeb22ccd8284564f2525671fd973d64de85de35be300
[INFO] running `Command { std: "docker" "start" "-a" "844729fa63adab9cdc8bbeb22ccd8284564f2525671fd973d64de85de35be300", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling libc v0.2.76
[INFO] [stderr]    Compiling getrandom v0.1.15
[INFO] [stderr]    Compiling proc-macro-hack v0.5.18
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.23
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling rayon-core v1.8.1
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling scopeguard v1.1.0
[INFO] [stderr]    Compiling khronos_api v3.1.0
[INFO] [stderr]    Compiling ppv-lite86 v0.2.9
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling typenum v1.12.0
[INFO] [stderr]    Compiling cc v1.0.59
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]    Compiling memoffset v0.5.5
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]    Compiling syn v1.0.42
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling adler32 v1.2.0
[INFO] [stderr]    Compiling serde v1.0.116
[INFO] [stderr]    Compiling paste-impl v0.1.18
[INFO] [stderr]    Compiling crossbeam-deque v0.7.3
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling crossbeam-channel v0.4.4
[INFO] [stderr]    Compiling cmake v0.1.44
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling num-rational v0.2.4
[INFO] [stderr]    Compiling rayon v1.4.0
[INFO] [stderr]    Compiling crc32fast v1.2.0
[INFO] [stderr]    Compiling serde_json v1.0.57
[INFO] [stderr]    Compiling xml-rs v0.8.3
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling serde_derive v1.0.116
[INFO] [stderr]    Compiling glfw-sys v3.3.2
[INFO] [stderr]    Compiling gl_generator v0.14.0
[INFO] [stderr]    Compiling paste v0.1.18
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling miniz_oxide v0.3.7
[INFO] [stderr]    Compiling const-random-macro v0.1.8
[INFO] [stderr]    Compiling approx v0.3.2
[INFO] [stderr]    Compiling num-iter v0.1.41
[INFO] [stderr]    Compiling num-rational v0.3.0
[INFO] [stderr]    Compiling rawpointer v0.2.1
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling lzw v0.10.0
[INFO] [stderr]    Compiling itoa v0.4.6
[INFO] [stderr]    Compiling matrixmultiply v0.2.3
[INFO] [stderr]    Compiling simba v0.2.0
[INFO] [stderr]    Compiling const-random v0.1.8
[INFO] [stderr]    Compiling gl v0.14.0
[INFO] [stderr]    Compiling rand_distr v0.2.2
[INFO] [stderr]    Compiling generic-array v0.13.2
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]    Compiling deflate v0.8.6
[INFO] [stderr]    Compiling thread-id v3.3.0
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling lazy_static v0.2.11
[INFO] [stderr]    Compiling color_quant v1.0.1
[INFO] [stderr]    Compiling gif v0.10.3
[INFO] [stderr]    Compiling jpeg-decoder v0.1.20
[INFO] [stderr]    Compiling png v0.16.7
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling nalgebra v0.22.0
[INFO] [stderr]    Compiling ahash v0.3.8
[INFO] [stderr]    Compiling tiff v0.5.0
[INFO] [stderr]    Compiling raw-window-handle v0.3.3
[INFO] [stderr]    Compiling bytemuck v1.4.1
[INFO] [stderr]    Compiling scoped_threadpool v0.1.9
[INFO] [stderr]    Compiling dashmap v3.11.10
[INFO] [stderr]    Compiling image v0.23.9
[INFO] [stderr]    Compiling glfw v0.40.0 (https://github.com/bjz/glfw-rs.git#69c1912e)
[INFO] [stderr]    Compiling nalgebra-glm v0.8.0
[INFO] [stderr]    Compiling flame v0.2.2
[INFO] [stderr]    Compiling flamer v0.3.0
[INFO] [stderr]    Compiling voxel-render v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `ambient`, `diffuse`, `specular`, and `shininess` are never read
[INFO] [stdout]   --> src/voxel_registry.rs:15:9
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub struct Material {
[INFO] [stdout]    |            -------- fields in this struct
[INFO] [stdout] 15 |     pub ambient: Vec3,
[INFO] [stdout]    |         ^^^^^^^
[INFO] [stdout] 16 |     pub diffuse: Vec3,
[INFO] [stdout]    |         ^^^^^^^
[INFO] [stdout] 17 |     pub specular: Vec3,
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] 18 |     pub shininess: f32,
[INFO] [stdout]    |         ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Material` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `mat` is never read
[INFO] [stdout]   --> src/voxel_registry.rs:24:9
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub struct VoxelAttributes {
[INFO] [stdout]    |            --------------- field in this struct
[INFO] [stdout] 23 |     pub transparent: bool,
[INFO] [stdout] 24 |     pub mat: Material,
[INFO] [stdout]    |         ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `VoxelAttributes` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `world_type` is never used
[INFO] [stdout]   --> src/world.rs:13:8
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub trait WorldType: Send + Sync {
[INFO] [stdout]    |           --------- method in this trait
[INFO] [stdout] 12 |     fn gen_chunk(&self, key: &ChunkKey, reg: &VoxelReg) -> Vec<u64>;
[INFO] [stdout] 13 |     fn world_type(&self) -> &'static str;
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `active` is never read
[INFO] [stdout]   --> src/world.rs:55:9
[INFO] [stdout]    |
[INFO] [stdout] 52 | pub struct World {
[INFO] [stdout]    |            ----- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 55 |     pub active: bool,
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stdout]    --> src/chunk_updater.rs:225:13
[INFO] [stdout]     |
[INFO] [stdout] 225 |             drop(world);
[INFO] [stdout]     |             ^^^^^-----^
[INFO] [stdout]     |                  |
[INFO] [stdout]     |                  argument has type `&World`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dropping_references)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]     |
[INFO] [stdout] 225 -             drop(world);
[INFO] [stdout] 225 +             let _ = world;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2m 18s
[INFO] running `Command { std: "docker" "inspect" "844729fa63adab9cdc8bbeb22ccd8284564f2525671fd973d64de85de35be300", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "844729fa63adab9cdc8bbeb22ccd8284564f2525671fd973d64de85de35be300", kill_on_drop: false }`
[INFO] [stdout] 844729fa63adab9cdc8bbeb22ccd8284564f2525671fd973d64de85de35be300
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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=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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dfe89e3018a2b4ff46c1f530c9c981337adf841b697d551f603c7f03b9c7d9d2
[INFO] running `Command { std: "docker" "start" "-a" "dfe89e3018a2b4ff46c1f530c9c981337adf841b697d551f603c7f03b9c7d9d2", kill_on_drop: false }`
[INFO] [stderr]    Compiling voxel-render v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `ambient`, `diffuse`, `specular`, and `shininess` are never read
[INFO] [stdout]   --> src/voxel_registry.rs:15:9
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub struct Material {
[INFO] [stdout]    |            -------- fields in this struct
[INFO] [stdout] 15 |     pub ambient: Vec3,
[INFO] [stdout]    |         ^^^^^^^
[INFO] [stdout] 16 |     pub diffuse: Vec3,
[INFO] [stdout]    |         ^^^^^^^
[INFO] [stdout] 17 |     pub specular: Vec3,
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] 18 |     pub shininess: f32,
[INFO] [stdout]    |         ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Material` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `mat` is never read
[INFO] [stdout]   --> src/voxel_registry.rs:24:9
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub struct VoxelAttributes {
[INFO] [stdout]    |            --------------- field in this struct
[INFO] [stdout] 23 |     pub transparent: bool,
[INFO] [stdout] 24 |     pub mat: Material,
[INFO] [stdout]    |         ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `VoxelAttributes` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `world_type` is never used
[INFO] [stdout]   --> src/world.rs:13:8
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub trait WorldType: Send + Sync {
[INFO] [stdout]    |           --------- method in this trait
[INFO] [stdout] 12 |     fn gen_chunk(&self, key: &ChunkKey, reg: &VoxelReg) -> Vec<u64>;
[INFO] [stdout] 13 |     fn world_type(&self) -> &'static str;
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `active` is never read
[INFO] [stdout]   --> src/world.rs:55:9
[INFO] [stdout]    |
[INFO] [stdout] 52 | pub struct World {
[INFO] [stdout]    |            ----- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 55 |     pub active: bool,
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stdout]    --> src/chunk_updater.rs:225:13
[INFO] [stdout]     |
[INFO] [stdout] 225 |             drop(world);
[INFO] [stdout]     |             ^^^^^-----^
[INFO] [stdout]     |                  |
[INFO] [stdout]     |                  argument has type `&World`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dropping_references)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]     |
[INFO] [stdout] 225 -             drop(world);
[INFO] [stdout] 225 +             let _ = world;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.14s
[INFO] running `Command { std: "docker" "inspect" "dfe89e3018a2b4ff46c1f530c9c981337adf841b697d551f603c7f03b9c7d9d2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dfe89e3018a2b4ff46c1f530c9c981337adf841b697d551f603c7f03b9c7d9d2", kill_on_drop: false }`
[INFO] [stdout] dfe89e3018a2b4ff46c1f530c9c981337adf841b697d551f603c7f03b9c7d9d2
