[INFO] cloning repository https://github.com/Kislalex/ants_search
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Kislalex/ants_search" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKislalex%2Fants_search", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKislalex%2Fants_search'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c9768958bf24d42df8ac9f7a60ad54e9d3398325
[INFO] checking Kislalex/ants_search against master#e6e4f7ed1589e03bc2f6c5931c1a72e7947e8682 for beta-170-4
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKislalex%2Fants_search" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Kislalex/ants_search on toolchain e6e4f7ed1589e03bc2f6c5931c1a72e7947e8682
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+e6e4f7ed1589e03bc2f6c5931c1a72e7947e8682" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Kislalex/ants_search
[INFO] finished tweaking git repo https://github.com/Kislalex/ants_search
[INFO] tweaked toml for git repo https://github.com/Kislalex/ants_search written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/Kislalex/ants_search 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" "+e6e4f7ed1589e03bc2f6c5931c1a72e7947e8682" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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_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@sha256:19e73879b68f455e41552ea35293514db52ea292d993f571636dbffedb77a1ee" "/opt/rustwide/cargo-home/bin/cargo" "+e6e4f7ed1589e03bc2f6c5931c1a72e7947e8682" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] db5c412257426a3ab7f78c4297638b909c378d66505a8a68dcf77112820316d1
[INFO] running `Command { std: "docker" "start" "-a" "db5c412257426a3ab7f78c4297638b909c378d66505a8a68dcf77112820316d1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "db5c412257426a3ab7f78c4297638b909c378d66505a8a68dcf77112820316d1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "db5c412257426a3ab7f78c4297638b909c378d66505a8a68dcf77112820316d1", kill_on_drop: false }`
[INFO] [stdout] db5c412257426a3ab7f78c4297638b909c378d66505a8a68dcf77112820316d1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:19e73879b68f455e41552ea35293514db52ea292d993f571636dbffedb77a1ee" "/opt/rustwide/cargo-home/bin/cargo" "+e6e4f7ed1589e03bc2f6c5931c1a72e7947e8682" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] befa152f6b04e144839d0daba316858345f71688612dbf63593d495a254bd4ab
[INFO] running `Command { std: "docker" "start" "-a" "befa152f6b04e144839d0daba316858345f71688612dbf63593d495a254bd4ab", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.94
[INFO] [stderr]    Compiling crossbeam-utils v0.8.4
[INFO] [stderr]    Compiling memoffset v0.6.3
[INFO] [stderr]    Compiling serde v1.0.125
[INFO] [stderr]    Compiling rayon-core v1.9.0
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling rayon v1.5.0
[INFO] [stderr]    Compiling version-compare v0.0.10
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling getrandom v0.2.2
[INFO] [stderr]    Compiling proc-macro2 v1.0.26
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling sdl2-sys v0.34.5
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]    Compiling matrixmultiply v0.1.15
[INFO] [stderr]     Checking crossbeam-epoch v0.9.4
[INFO] [stderr]     Checking crossbeam-channel v0.5.1
[INFO] [stderr]     Checking crossbeam-deque v0.8.0
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]    Compiling cast v0.2.5
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling syn v1.0.72
[INFO] [stderr]    Compiling ndarray v0.12.1
[INFO] [stderr]    Compiling serde_json v1.0.64
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking itoa v0.4.7
[INFO] [stderr]     Checking rawpointer v0.1.0
[INFO] [stderr]     Checking regex-automata v0.1.9
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking rand_core v0.6.2
[INFO] [stderr]     Checking itertools v0.7.11
[INFO] [stderr]    Compiling sdl2 v0.34.5
[INFO] [stderr]     Checking rawpointer v0.2.1
[INFO] [stderr]     Checking plotters-backend v0.3.0
[INFO] [stderr]    Compiling serde_derive v1.0.125
[INFO] [stderr]     Checking ppv-lite86 v0.2.10
[INFO] [stderr]     Checking matrixmultiply v0.3.1
[INFO] [stderr]     Checking plotters-svg v0.3.0
[INFO] [stderr]     Checking rand_chacha v0.3.0
[INFO] [stderr]     Checking csv-core v0.1.10
[INFO] [stderr]     Checking num-complex v0.4.0
[INFO] [stderr]     Checking itertools v0.9.0
[INFO] [stderr]     Checking half v1.7.1
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]     Checking rand v0.8.3
[INFO] [stderr]     Checking criterion-plot v0.4.3
[INFO] [stderr]     Checking bstr v0.2.16
[INFO] [stderr]     Checking serde_cbor v0.11.1
[INFO] [stderr]     Checking plotters v0.3.0
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking ndarray v0.15.1
[INFO] [stderr]     Checking csv v1.1.6
[INFO] [stderr]     Checking ndarray-parallel v0.9.1
[INFO] [stderr]     Checking tinytemplate v1.2.1
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking itertools v0.10.0
[INFO] [stderr]     Checking oorandom v11.1.3
[INFO] [stderr]     Checking Ants_search v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `rand::thread_rng`
[INFO] [stdout]  --> src/main.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use rand::thread_rng;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `x` is never read
[INFO] [stdout]   --> src/main.rs:42:13
[INFO] [stdout]    |
[INFO] [stdout] 42 |     let mut x: u32 = 0;
[INFO] [stdout]    |             ^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `hello` is never used
[INFO] [stdout]   --> src/main.rs:14:4
[INFO] [stdout]    |
[INFO] [stdout] 14 | fn hello(field: &mut crate::field::Field) -> Point {
[INFO] [stdout]    |    ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: crate `Ants_search` should have a snake case name
[INFO] [stdout]   |
[INFO] [stdout]   = help: convert the identifier to snake case: `ants_search`
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/ants.rs:196:17
[INFO] [stdout]     |
[INFO] [stdout] 196 | /                 canvas.fill_rect(Rect::new(
[INFO] [stdout] 197 | |                     (ant.point.x - DIRECTIONS[ant.dir].x) * scale,
[INFO] [stdout] 198 | |                     (ant.point.y - DIRECTIONS[ant.dir].y) * scale,
[INFO] [stdout] 199 | |                     scale as u32,
[INFO] [stdout] 200 | |                     scale as u32,
[INFO] [stdout] 201 | |                 ));
[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] 196 |                 let _ = canvas.fill_rect(Rect::new(
[INFO] [stdout]     |                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/ants.rs:208:17
[INFO] [stdout]     |
[INFO] [stdout] 208 | /                 canvas.fill_rect(Rect::new(
[INFO] [stdout] 209 | |                     ant.point.x * scale,
[INFO] [stdout] 210 | |                     ant.point.y * scale,
[INFO] [stdout] 211 | |                     scale as u32,
[INFO] [stdout] 212 | |                     scale as u32,
[INFO] [stdout] 213 | |                 ));
[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] 208 |                 let _ = canvas.fill_rect(Rect::new(
[INFO] [stdout]     |                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/ants.rs:235:21
[INFO] [stdout]     |
[INFO] [stdout] 235 | /                     canvas.fill_rect(Rect::new(
[INFO] [stdout] 236 | |                         ant.point.x * scale,
[INFO] [stdout] 237 | |                         ant.point.y * scale,
[INFO] [stdout] 238 | |                         scale as u32,
[INFO] [stdout] 239 | |                         scale as u32,
[INFO] [stdout] 240 | |                     ));
[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] 235 |                     let _ = canvas.fill_rect(Rect::new(
[INFO] [stdout]     |                     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/field.rs:141:21
[INFO] [stdout]     |
[INFO] [stdout] 141 | /                     canvas.fill_rect(Rect::new(
[INFO] [stdout] 142 | |                         w as i32 * scale,
[INFO] [stdout] 143 | |                         h as i32 * scale,
[INFO] [stdout] 144 | |                         scale as u32,
[INFO] [stdout] 145 | |                         scale as u32,
[INFO] [stdout] 146 | |                     ));
[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] 141 |                     let _ = canvas.fill_rect(Rect::new(
[INFO] [stdout]     |                     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/field.rs:152:13
[INFO] [stdout]     |
[INFO] [stdout] 152 | /             canvas.fill_rect(Rect::new(
[INFO] [stdout] 153 | |                 rect.x * scale,
[INFO] [stdout] 154 | |                 rect.y * scale,
[INFO] [stdout] 155 | |                 rect.width() * scale as u32,
[INFO] [stdout] 156 | |                 rect.height() * scale as u32,
[INFO] [stdout] 157 | |             ));
[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] 152 |             let _ = canvas.fill_rect(Rect::new(
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/field.rs:161:13
[INFO] [stdout]     |
[INFO] [stdout] 161 | /             canvas.fill_rect(Rect::new(
[INFO] [stdout] 162 | |                 rect.x * scale,
[INFO] [stdout] 163 | |                 rect.y * scale,
[INFO] [stdout] 164 | |                 rect.width() * scale as u32,
[INFO] [stdout] 165 | |                 rect.height() * scale as u32,
[INFO] [stdout] 166 | |             ));
[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] 161 |             let _ = canvas.fill_rect(Rect::new(
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/field.rs:170:13
[INFO] [stdout]     |
[INFO] [stdout] 170 | /             canvas.fill_rect(Rect::new(
[INFO] [stdout] 171 | |                 rect.x * scale,
[INFO] [stdout] 172 | |                 rect.y * scale,
[INFO] [stdout] 173 | |                 rect.width() * scale as u32,
[INFO] [stdout] 174 | |                 rect.height() * scale as u32,
[INFO] [stdout] 175 | |             ));
[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] 170 |             let _ = canvas.fill_rect(Rect::new(
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 11 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking criterion v0.3.4
[INFO] [stdout] warning: unused import: `rand::thread_rng`
[INFO] [stdout]  --> src/main.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use rand::thread_rng;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `AntSystem`
[INFO] [stdout]  --> benches/my_benchmark.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use AntSystem::field::Field;
[INFO] [stdout]   |     ^^^^^^^^^ use of undeclared type `AntSystem`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function `fibonacci` in this scope
[INFO] [stdout]  --> benches/my_benchmark.rs:5:46
[INFO] [stdout]   |
[INFO] [stdout] 5 |     c.bench_function("fib 20", |b| b.iter(|| fibonacci(black_box(20))));
[INFO] [stdout]   |                                              ^^^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0425, E0433.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0425`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `Ants_search` (bench "my_benchmark") due to 3 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: value assigned to `x` is never read
[INFO] [stdout]   --> src/main.rs:42:13
[INFO] [stdout]    |
[INFO] [stdout] 42 |     let mut x: u32 = 0;
[INFO] [stdout]    |             ^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `hello` is never used
[INFO] [stdout]   --> src/main.rs:14:4
[INFO] [stdout]    |
[INFO] [stdout] 14 | fn hello(field: &mut crate::field::Field) -> Point {
[INFO] [stdout]    |    ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: crate `Ants_search` should have a snake case name
[INFO] [stdout]   |
[INFO] [stdout]   = help: convert the identifier to snake case: `ants_search`
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/ants.rs:196:17
[INFO] [stdout]     |
[INFO] [stdout] 196 | /                 canvas.fill_rect(Rect::new(
[INFO] [stdout] 197 | |                     (ant.point.x - DIRECTIONS[ant.dir].x) * scale,
[INFO] [stdout] 198 | |                     (ant.point.y - DIRECTIONS[ant.dir].y) * scale,
[INFO] [stdout] 199 | |                     scale as u32,
[INFO] [stdout] 200 | |                     scale as u32,
[INFO] [stdout] 201 | |                 ));
[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] 196 |                 let _ = canvas.fill_rect(Rect::new(
[INFO] [stdout]     |                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/ants.rs:208:17
[INFO] [stdout]     |
[INFO] [stdout] 208 | /                 canvas.fill_rect(Rect::new(
[INFO] [stdout] 209 | |                     ant.point.x * scale,
[INFO] [stdout] 210 | |                     ant.point.y * scale,
[INFO] [stdout] 211 | |                     scale as u32,
[INFO] [stdout] 212 | |                     scale as u32,
[INFO] [stdout] 213 | |                 ));
[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] 208 |                 let _ = canvas.fill_rect(Rect::new(
[INFO] [stdout]     |                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/ants.rs:235:21
[INFO] [stdout]     |
[INFO] [stdout] 235 | /                     canvas.fill_rect(Rect::new(
[INFO] [stdout] 236 | |                         ant.point.x * scale,
[INFO] [stdout] 237 | |                         ant.point.y * scale,
[INFO] [stdout] 238 | |                         scale as u32,
[INFO] [stdout] 239 | |                         scale as u32,
[INFO] [stdout] 240 | |                     ));
[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] 235 |                     let _ = canvas.fill_rect(Rect::new(
[INFO] [stdout]     |                     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/field.rs:141:21
[INFO] [stdout]     |
[INFO] [stdout] 141 | /                     canvas.fill_rect(Rect::new(
[INFO] [stdout] 142 | |                         w as i32 * scale,
[INFO] [stdout] 143 | |                         h as i32 * scale,
[INFO] [stdout] 144 | |                         scale as u32,
[INFO] [stdout] 145 | |                         scale as u32,
[INFO] [stdout] 146 | |                     ));
[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] 141 |                     let _ = canvas.fill_rect(Rect::new(
[INFO] [stdout]     |                     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/field.rs:152:13
[INFO] [stdout]     |
[INFO] [stdout] 152 | /             canvas.fill_rect(Rect::new(
[INFO] [stdout] 153 | |                 rect.x * scale,
[INFO] [stdout] 154 | |                 rect.y * scale,
[INFO] [stdout] 155 | |                 rect.width() * scale as u32,
[INFO] [stdout] 156 | |                 rect.height() * scale as u32,
[INFO] [stdout] 157 | |             ));
[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] 152 |             let _ = canvas.fill_rect(Rect::new(
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/field.rs:161:13
[INFO] [stdout]     |
[INFO] [stdout] 161 | /             canvas.fill_rect(Rect::new(
[INFO] [stdout] 162 | |                 rect.x * scale,
[INFO] [stdout] 163 | |                 rect.y * scale,
[INFO] [stdout] 164 | |                 rect.width() * scale as u32,
[INFO] [stdout] 165 | |                 rect.height() * scale as u32,
[INFO] [stdout] 166 | |             ));
[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] 161 |             let _ = canvas.fill_rect(Rect::new(
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/field.rs:170:13
[INFO] [stdout]     |
[INFO] [stdout] 170 | /             canvas.fill_rect(Rect::new(
[INFO] [stdout] 171 | |                 rect.x * scale,
[INFO] [stdout] 172 | |                 rect.y * scale,
[INFO] [stdout] 173 | |                 rect.width() * scale as u32,
[INFO] [stdout] 174 | |                 rect.height() * scale as u32,
[INFO] [stdout] 175 | |             ));
[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] 170 |             let _ = canvas.fill_rect(Rect::new(
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 11 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "befa152f6b04e144839d0daba316858345f71688612dbf63593d495a254bd4ab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "befa152f6b04e144839d0daba316858345f71688612dbf63593d495a254bd4ab", kill_on_drop: false }`
[INFO] [stdout] befa152f6b04e144839d0daba316858345f71688612dbf63593d495a254bd4ab
