[INFO] cloning repository https://github.com/nilsve/cells
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/nilsve/cells" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnilsve%2Fcells", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnilsve%2Fcells'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 77d6b8d7e14f64e58c8fe7b3dff5a890e216325a
[INFO] checking nilsve/cells against 5c543b0b8c73c7b72bc8284ced4fb22ead15734d for pr-160186
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnilsve%2Fcells" "/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/nilsve/cells
[INFO] finished tweaking git repo https://github.com/nilsve/cells
[INFO] tweaked toml for git repo https://github.com/nilsve/cells written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/nilsve/cells on toolchain 5c543b0b8c73c7b72bc8284ced4fb22ead15734d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5c543b0b8c73c7b72bc8284ced4fb22ead15734d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/nilsve/cells 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" "+5c543b0b8c73c7b72bc8284ced4fb22ead15734d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded bumpalo v3.7.1
[INFO] [stderr]   Downloaded libc v0.2.103
[INFO] [stderr]   Downloaded macroquad v0.3.10
[INFO] [stderr]   Downloaded quad-snd v0.2.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:77db811e55d90add9212f6832c23229e3de5f1c1f9905e8cb07319ea15df73ac" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] a31dc2ce3f61e70a1ab7ff72554f74628f96fe0cfd67b41e8e74165379e7600f
[INFO] running `Command { std: "docker" "start" "a31dc2ce3f61e70a1ab7ff72554f74628f96fe0cfd67b41e8e74165379e7600f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a31dc2ce3f61e70a1ab7ff72554f74628f96fe0cfd67b41e8e74165379e7600f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "a31dc2ce3f61e70a1ab7ff72554f74628f96fe0cfd67b41e8e74165379e7600f" "/opt/rustwide/cargo-home/bin/cargo" "+5c543b0b8c73c7b72bc8284ced4fb22ead15734d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a31dc2ce3f61e70a1ab7ff72554f74628f96fe0cfd67b41e8e74165379e7600f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "a31dc2ce3f61e70a1ab7ff72554f74628f96fe0cfd67b41e8e74165379e7600f" "/opt/rustwide/cargo-home/bin/cargo" "+5c543b0b8c73c7b72bc8284ced4fb22ead15734d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.103
[INFO] [stderr]    Compiling sapp-linux v0.1.13
[INFO] [stderr]    Compiling quad-snd v0.2.2
[INFO] [stderr]     Checking bumpalo v3.7.1
[INFO] [stderr]     Checking quad-alsa-sys v0.3.2
[INFO] [stderr]     Checking miniquad v0.3.0-alpha.37
[INFO] [stderr]     Checking macroquad v0.3.10
[INFO] [stderr]     Checking cells v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `WorldTilePos`
[INFO] [stdout]  --> src/game/chunk.rs:1:51
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::game::coords::{ChunkTilePos, ChunkPos, WorldTilePos};
[INFO] [stdout]   |                                                   ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::game::world::World`
[INFO] [stdout]  --> src/game/chunk.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use crate::game::world::World;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::borrow::Borrow`
[INFO] [stdout]  --> src/game/world.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::borrow::Borrow;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `WorldError`
[INFO] [stdout]  --> src/game/world_updater.rs:1:33
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::game::world::{World, WorldError};
[INFO] [stdout]   |                                 ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::game::chunk::Chunk`
[INFO] [stdout]  --> src/game/world_updater.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::game::chunk::Chunk;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ChunkTilePos`
[INFO] [stdout]  --> src/game/world_updater.rs:3:37
[INFO] [stdout]   |
[INFO] [stdout] 3 | use crate::game::coords::{ChunkPos, ChunkTilePos, WorldTilePos};
[INFO] [stdout]   |                                     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Tile`
[INFO] [stdout]  --> src/game/world_updater.rs:5:32
[INFO] [stdout]   |
[INFO] [stdout] 5 | use crate::game::tiles::tile::{Tile, TileAction};
[INFO] [stdout]   |                                ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Pointer`
[INFO] [stdout]  --> src/game/tiles/tile.rs:3:34
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::fmt::{Formatter, Debug, Pointer};
[INFO] [stdout]   |                                  ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `core::fmt`
[INFO] [stdout]  --> src/game/tiles/tile.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use core::fmt;
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `BLUE`
[INFO] [stdout]  --> src/game/tiles/sand.rs:2:30
[INFO] [stdout]   |
[INFO] [stdout] 2 |     use macroquad::prelude::{BLUE, Color, YELLOW};
[INFO] [stdout]   |                              ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `WorldTilePos`
[INFO] [stdout]  --> src/game/chunk.rs:1:51
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::game::coords::{ChunkTilePos, ChunkPos, WorldTilePos};
[INFO] [stdout]   |                                                   ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::game::world::World`
[INFO] [stdout]  --> src/game/chunk.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use crate::game::world::World;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::borrow::Borrow`
[INFO] [stdout]  --> src/game/world.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::borrow::Borrow;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `WorldError`
[INFO] [stdout]  --> src/game/world_updater.rs:1:33
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::game::world::{World, WorldError};
[INFO] [stdout]   |                                 ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::game::chunk::Chunk`
[INFO] [stdout]  --> src/game/world_updater.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::game::chunk::Chunk;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ChunkTilePos`
[INFO] [stdout]  --> src/game/world_updater.rs:3:37
[INFO] [stdout]   |
[INFO] [stdout] 3 | use crate::game::coords::{ChunkPos, ChunkTilePos, WorldTilePos};
[INFO] [stdout]   |                                     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Tile`
[INFO] [stdout]  --> src/game/world_updater.rs:5:32
[INFO] [stdout]   |
[INFO] [stdout] 5 | use crate::game::tiles::tile::{Tile, TileAction};
[INFO] [stdout]   |                                ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Pointer`
[INFO] [stdout]  --> src/game/tiles/tile.rs:3:34
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::fmt::{Formatter, Debug, Pointer};
[INFO] [stdout]   |                                  ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `core::fmt`
[INFO] [stdout]  --> src/game/tiles/tile.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use core::fmt;
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `BLUE`
[INFO] [stdout]  --> src/game/tiles/sand.rs:2:30
[INFO] [stdout]   |
[INFO] [stdout] 2 |     use macroquad::prelude::{BLUE, Color, YELLOW};
[INFO] [stdout]   |                              ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/game/chunk.rs:24:13
[INFO] [stdout]    |
[INFO] [stdout] 24 |         for i in 0..(chunk_size * chunk_size) {
[INFO] [stdout]    |             ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `world`
[INFO] [stdout]  --> src/game/tiles/empty.rs:9:30
[INFO] [stdout]   |
[INFO] [stdout] 9 |         fn get_action(&self, world: &World) -> TileAction {
[INFO] [stdout]   |                              ^^^^^ help: if this is intentional, prefix it with an underscore: `_world`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `world`
[INFO] [stdout]  --> src/game/tiles/sand.rs:9:30
[INFO] [stdout]   |
[INFO] [stdout] 9 |         fn get_action(&self, world: &World) -> TileAction {
[INFO] [stdout]   |                              ^^^^^ help: if this is intentional, prefix it with an underscore: `_world`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `chunk_pos` is never read
[INFO] [stdout]  --> src/game/chunk.rs:8:9
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub struct Chunk {
[INFO] [stdout]   |            ----- field in this struct
[INFO] [stdout] 8 |     pub chunk_pos: ChunkPos,
[INFO] [stdout]   |         ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Chunk` has a derived impl for the trait `Debug`, but this is 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: variant `TileDoenstExist` is never constructed
[INFO] [stdout]   --> src/game/world.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub enum WorldError {
[INFO] [stdout]    |          ---------- variant in this enum
[INFO] [stdout] 15 |     ChunkDoesntExist,
[INFO] [stdout] 16 |     TileDoenstExist,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `upsert_chunk`, `replace_tile_test`, and `upsert_tile` are never used
[INFO] [stdout]    --> src/game/world.rs:59:8
[INFO] [stdout]     |
[INFO] [stdout]  19 | impl World {
[INFO] [stdout]     | ---------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout]  59 |     fn upsert_chunk(&mut self, chunk_pos: &ChunkPos) -> Arc<Mutex<Chunk>> {
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  94 |     pub fn replace_tile_test(&mut self, world_tile_pos: &WorldTilePos, tile: Tile) -> Result<(), WorldError> {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 105 |     pub fn upsert_tile(&mut self, world_tile_pos: &WorldTilePos, tile: Tile) {
[INFO] [stdout]     |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `apply_to_world_tile_pos` is never used
[INFO] [stdout]   --> src/game/tiles/tile.rs:21:12
[INFO] [stdout]    |
[INFO] [stdout] 13 | impl Direction {
[INFO] [stdout]    | -------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 21 |     pub fn apply_to_world_tile_pos(&self, world_tile_pos: &WorldTilePos) -> WorldTilePos {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/game/chunk.rs:24:13
[INFO] [stdout]    |
[INFO] [stdout] 24 |         for i in 0..(chunk_size * chunk_size) {
[INFO] [stdout]    |             ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `world`
[INFO] [stdout]  --> src/game/tiles/empty.rs:9:30
[INFO] [stdout]   |
[INFO] [stdout] 9 |         fn get_action(&self, world: &World) -> TileAction {
[INFO] [stdout]   |                              ^^^^^ help: if this is intentional, prefix it with an underscore: `_world`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `world`
[INFO] [stdout]  --> src/game/tiles/sand.rs:9:30
[INFO] [stdout]   |
[INFO] [stdout] 9 |         fn get_action(&self, world: &World) -> TileAction {
[INFO] [stdout]   |                              ^^^^^ help: if this is intentional, prefix it with an underscore: `_world`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `chunk_pos` is never read
[INFO] [stdout]  --> src/game/chunk.rs:8:9
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub struct Chunk {
[INFO] [stdout]   |            ----- field in this struct
[INFO] [stdout] 8 |     pub chunk_pos: ChunkPos,
[INFO] [stdout]   |         ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Chunk` has a derived impl for the trait `Debug`, but this is 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: variant `TileDoenstExist` is never constructed
[INFO] [stdout]   --> src/game/world.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub enum WorldError {
[INFO] [stdout]    |          ---------- variant in this enum
[INFO] [stdout] 15 |     ChunkDoesntExist,
[INFO] [stdout] 16 |     TileDoenstExist,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `upsert_chunk`, `replace_tile_test`, and `upsert_tile` are never used
[INFO] [stdout]    --> src/game/world.rs:59:8
[INFO] [stdout]     |
[INFO] [stdout]  19 | impl World {
[INFO] [stdout]     | ---------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout]  59 |     fn upsert_chunk(&mut self, chunk_pos: &ChunkPos) -> Arc<Mutex<Chunk>> {
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  94 |     pub fn replace_tile_test(&mut self, world_tile_pos: &WorldTilePos, tile: Tile) -> Result<(), WorldError> {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 105 |     pub fn upsert_tile(&mut self, world_tile_pos: &WorldTilePos, tile: Tile) {
[INFO] [stdout]     |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `apply_to_world_tile_pos` is never used
[INFO] [stdout]   --> src/game/tiles/tile.rs:21:12
[INFO] [stdout]    |
[INFO] [stdout] 13 | impl Direction {
[INFO] [stdout]    | -------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 21 |     pub fn apply_to_world_tile_pos(&self, world_tile_pos: &WorldTilePos) -> WorldTilePos {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     world.init_world(4);
[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)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 12 |     let _ = world.init_world(4);
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 |     world.replace_tile(&WorldTilePos::new(-20, 0), sand_tile::new());
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 13 |     let _ = world.replace_tile(&WorldTilePos::new(-20, 0), sand_tile::new());
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     world.init_world(4);
[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)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 12 |     let _ = world.init_world(4);
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 |     world.replace_tile(&WorldTilePos::new(-20, 0), sand_tile::new());
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 13 |     let _ = world.replace_tile(&WorldTilePos::new(-20, 0), sand_tile::new());
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] warning: unused dependency `dyn-clone`
[INFO] [stderr]  --> Cargo.toml:2:1
[INFO] [stderr]   |
[INFO] [stderr] 2 | dyn-clone = "1.0.4"
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `cargo::unused_dependencies` is set to `warn` by default
[INFO] [stderr] help: consider removing the dependency on `dyn-clone`
[INFO] [stderr] warning: `cells` (manifest) generated 1 warning
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.81s
[INFO] running `Command { std: "docker" "inspect" "a31dc2ce3f61e70a1ab7ff72554f74628f96fe0cfd67b41e8e74165379e7600f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a31dc2ce3f61e70a1ab7ff72554f74628f96fe0cfd67b41e8e74165379e7600f", kill_on_drop: false }`
[INFO] [stdout] a31dc2ce3f61e70a1ab7ff72554f74628f96fe0cfd67b41e8e74165379e7600f
