[INFO] cloning repository https://github.com/jimmiebfulton/game-of-life [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jimmiebfulton/game-of-life" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjimmiebfulton%2Fgame-of-life", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjimmiebfulton%2Fgame-of-life'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 4f7c3a1f86680a9ca4e1fd4e12ce5a9cff482a61 [INFO] testing jimmiebfulton/game-of-life against try#8de4c7234dd9b97c9d76b58671343fdbbc9a433e+target=x86_64-unknown-linux-musl for musl_upgrade_1_2_5_with_libc_patch_0 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjimmiebfulton%2Fgame-of-life" "/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/jimmiebfulton/game-of-life [INFO] finished tweaking git repo https://github.com/jimmiebfulton/game-of-life [INFO] tweaked toml for git repo https://github.com/jimmiebfulton/game-of-life written to /workspace/builds/worker-7-tc1/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/jimmiebfulton/game-of-life on toolchain 8de4c7234dd9b97c9d76b58671343fdbbc9a433e [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/jimmiebfulton/game-of-life 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" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded signal-hook-mio v0.2.1 [INFO] [stderr] Downloaded paste v1.0.6 [INFO] [stderr] Downloaded signal-hook v0.3.10 [INFO] [stderr] Downloaded wide v0.7.1 [INFO] [stderr] Downloaded simba v0.6.0 [INFO] [stderr] Downloaded crossterm v0.22.1 [INFO] [stderr] Downloaded nalgebra v0.29.0 [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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 1f91fba0e90be20642a70db72a9f07ce253489a7ccb9ff331575cb55b7b3b269 [INFO] running `Command { std: "docker" "start" "-a" "1f91fba0e90be20642a70db72a9f07ce253489a7ccb9ff331575cb55b7b3b269", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "1f91fba0e90be20642a70db72a9f07ce253489a7ccb9ff331575cb55b7b3b269", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "1f91fba0e90be20642a70db72a9f07ce253489a7ccb9ff331575cb55b7b3b269", kill_on_drop: false }` [INFO] [stdout] 1f91fba0e90be20642a70db72a9f07ce253489a7ccb9ff331575cb55b7b3b269 [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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "build" "--frozen" "--message-format=json" "--target" "x86_64-unknown-linux-musl", kill_on_drop: false }` [INFO] [stdout] 12d29b0dc51e852e9d444051a1cff3ecb4615afa9ac2ef3cf68839f089a18d5d [INFO] running `Command { std: "docker" "start" "-a" "12d29b0dc51e852e9d444051a1cff3ecb4615afa9ac2ef3cf68839f089a18d5d", kill_on_drop: false }` [INFO] [stderr] Compiling autocfg v1.0.1 [INFO] [stderr] Compiling libc v0.2.108 [INFO] [stderr] Compiling proc-macro2 v1.0.32 [INFO] [stderr] Compiling log v0.4.14 [INFO] [stderr] Compiling unicode-xid v0.2.2 [INFO] [stderr] Compiling parking_lot_core v0.8.5 [INFO] [stderr] Compiling signal-hook v0.3.10 [INFO] [stderr] Compiling bytemuck v1.7.2 [INFO] [stderr] Compiling syn v1.0.81 [INFO] [stderr] Compiling instant v0.1.12 [INFO] [stderr] Compiling smallvec v1.7.0 [INFO] [stderr] Compiling scopeguard v1.1.0 [INFO] [stderr] Compiling typenum v1.14.0 [INFO] [stderr] Compiling ppv-lite86 v0.2.15 [INFO] [stderr] Compiling paste v1.0.6 [INFO] [stderr] Compiling rawpointer v0.2.1 [INFO] [stderr] Compiling lock_api v0.4.5 [INFO] [stderr] Compiling matrixmultiply v0.3.2 [INFO] [stderr] Compiling safe_arch v0.6.0 [INFO] [stderr] Compiling num-traits v0.2.14 [INFO] [stderr] Compiling num-integer v0.1.44 [INFO] [stderr] Compiling num-rational v0.4.0 [INFO] [stderr] Compiling quote v1.0.10 [INFO] [stderr] Compiling wide v0.7.1 [INFO] [stderr] Compiling signal-hook-registry v1.4.0 [INFO] [stderr] Compiling getrandom v0.2.3 [INFO] [stderr] Compiling mio v0.7.14 [INFO] [stderr] Compiling rand_core v0.6.3 [INFO] [stderr] Compiling parking_lot v0.11.2 [INFO] [stderr] Compiling rand_chacha v0.3.1 [INFO] [stderr] Compiling approx v0.5.0 [INFO] [stderr] Compiling num-complex v0.4.0 [INFO] [stderr] Compiling signal-hook-mio v0.2.1 [INFO] [stderr] Compiling crossterm v0.22.1 [INFO] [stderr] Compiling rand v0.8.4 [INFO] [stderr] Compiling simba v0.6.0 [INFO] [stderr] Compiling nalgebra-macros v0.1.0 [INFO] [stderr] Compiling nalgebra v0.29.0 [INFO] [stderr] Compiling game-of-life v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `Error` [INFO] [stdout] --> src/main.rs:3:30 [INFO] [stdout] | [INFO] [stdout] 3 | use std::io::{stdout, Write, Error}; [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `Color`, `ResetColor`, `SetBackgroundColor`, and `SetForegroundColor` [INFO] [stdout] --> src/main.rs:9:19 [INFO] [stdout] | [INFO] [stdout] 9 | style::{self, Color, Stylize, ResetColor, SetBackgroundColor, SetForegroundColor}, [INFO] [stdout] | ^^^^^ ^^^^^^^^^^ ^^^^^^^^^^^^^^^^^^ ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `GameMatrix` [INFO] [stdout] --> src/main.rs:14:33 [INFO] [stdout] | [INFO] [stdout] 14 | use crate::engine::{GameOfLife, GameMatrix, CellState}; [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `rand::prelude` [INFO] [stdout] --> src/main.rs:16:5 [INFO] [stdout] | [INFO] [stdout] 16 | use rand::prelude::*; [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: methods `previous_mut` and `kill_em_all` are never used [INFO] [stdout] --> src/engine.rs:39:12 [INFO] [stdout] | [INFO] [stdout] 19 | impl GameOfLife { [INFO] [stdout] | --------------- methods in this implementation [INFO] [stdout] ... [INFO] [stdout] 39 | pub fn previous_mut(&mut self) -> &mut GameMatrix { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 61 | pub fn kill_em_all(&mut self) { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: methods `get_internal` and `kill_em_all` are never used [INFO] [stdout] --> src/engine.rs:103:12 [INFO] [stdout] | [INFO] [stdout] 67 | impl GameMatrix { [INFO] [stdout] | --------------- methods in this implementation [INFO] [stdout] ... [INFO] [stdout] 103 | pub fn get_internal(&self) -> &DMatrix { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 112 | pub fn kill_em_all(&mut self) { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `get_alive_neighbor_count` is never used [INFO] [stdout] --> src/engine.rs:119:4 [INFO] [stdout] | [INFO] [stdout] 119 | fn get_alive_neighbor_count(matrix: &GameMatrix, cell: Cell) -> usize { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:58:13 [INFO] [stdout] | [INFO] [stdout] 58 | render(&mut game, &mut stdout()); [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] 58 | let _ = render(&mut game, &mut stdout()); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 21.21s [INFO] running `Command { std: "docker" "inspect" "12d29b0dc51e852e9d444051a1cff3ecb4615afa9ac2ef3cf68839f089a18d5d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "12d29b0dc51e852e9d444051a1cff3ecb4615afa9ac2ef3cf68839f089a18d5d", kill_on_drop: false }` [INFO] [stdout] 12d29b0dc51e852e9d444051a1cff3ecb4615afa9ac2ef3cf68839f089a18d5d [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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "test" "--frozen" "--no-run" "--message-format=json" "--target" "x86_64-unknown-linux-musl", kill_on_drop: false }` [INFO] [stdout] 65803b5168078345ca92e75c262ad1371e8778844cc71c1b99d74eba9bae9c90 [INFO] running `Command { std: "docker" "start" "-a" "65803b5168078345ca92e75c262ad1371e8778844cc71c1b99d74eba9bae9c90", kill_on_drop: false }` [INFO] [stderr] Compiling game-of-life v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `Error` [INFO] [stdout] --> src/main.rs:3:30 [INFO] [stdout] | [INFO] [stdout] 3 | use std::io::{stdout, Write, Error}; [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `Color`, `ResetColor`, `SetBackgroundColor`, and `SetForegroundColor` [INFO] [stdout] --> src/main.rs:9:19 [INFO] [stdout] | [INFO] [stdout] 9 | style::{self, Color, Stylize, ResetColor, SetBackgroundColor, SetForegroundColor}, [INFO] [stdout] | ^^^^^ ^^^^^^^^^^ ^^^^^^^^^^^^^^^^^^ ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `GameMatrix` [INFO] [stdout] --> src/main.rs:14:33 [INFO] [stdout] | [INFO] [stdout] 14 | use crate::engine::{GameOfLife, GameMatrix, CellState}; [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `rand::prelude` [INFO] [stdout] --> src/main.rs:16:5 [INFO] [stdout] | [INFO] [stdout] 16 | use rand::prelude::*; [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `previous_mut` is never used [INFO] [stdout] --> src/engine.rs:39:12 [INFO] [stdout] | [INFO] [stdout] 19 | impl GameOfLife { [INFO] [stdout] | --------------- method in this implementation [INFO] [stdout] ... [INFO] [stdout] 39 | pub fn previous_mut(&mut self) -> &mut GameMatrix { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `get_internal` is never used [INFO] [stdout] --> src/engine.rs:103:12 [INFO] [stdout] | [INFO] [stdout] 67 | impl GameMatrix { [INFO] [stdout] | --------------- method in this implementation [INFO] [stdout] ... [INFO] [stdout] 103 | pub fn get_internal(&self) -> &DMatrix { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:58:13 [INFO] [stdout] | [INFO] [stdout] 58 | render(&mut game, &mut stdout()); [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] 58 | let _ = render(&mut game, &mut stdout()); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.85s [INFO] running `Command { std: "docker" "inspect" "65803b5168078345ca92e75c262ad1371e8778844cc71c1b99d74eba9bae9c90", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "65803b5168078345ca92e75c262ad1371e8778844cc71c1b99d74eba9bae9c90", kill_on_drop: false }` [INFO] [stdout] 65803b5168078345ca92e75c262ad1371e8778844cc71c1b99d74eba9bae9c90 [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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "test" "--frozen" "--target" "x86_64-unknown-linux-musl", kill_on_drop: false }` [INFO] [stdout] fda2367f175499825538eb72da5da726866eabea5319212ab15f988447338eb8 [INFO] running `Command { std: "docker" "start" "-a" "fda2367f175499825538eb72da5da726866eabea5319212ab15f988447338eb8", kill_on_drop: false }` [INFO] [stderr] warning: unused import: `Error` [INFO] [stderr] --> src/main.rs:3:30 [INFO] [stderr] | [INFO] [stderr] 3 | use std::io::{stdout, Write, Error}; [INFO] [stderr] | ^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused imports: `Color`, `ResetColor`, `SetBackgroundColor`, and `SetForegroundColor` [INFO] [stderr] --> src/main.rs:9:19 [INFO] [stderr] | [INFO] [stderr] 9 | style::{self, Color, Stylize, ResetColor, SetBackgroundColor, SetForegroundColor}, [INFO] [stderr] | ^^^^^ ^^^^^^^^^^ ^^^^^^^^^^^^^^^^^^ ^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `GameMatrix` [INFO] [stderr] --> src/main.rs:14:33 [INFO] [stderr] | [INFO] [stderr] 14 | use crate::engine::{GameOfLife, GameMatrix, CellState}; [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `rand::prelude` [INFO] [stderr] --> src/main.rs:16:5 [INFO] [stderr] | [INFO] [stderr] 16 | use rand::prelude::*; [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method `previous_mut` is never used [INFO] [stderr] --> src/engine.rs:39:12 [INFO] [stderr] | [INFO] [stderr] 19 | impl GameOfLife { [INFO] [stderr] | --------------- method in this implementation [INFO] [stderr] ... [INFO] [stderr] 39 | pub fn previous_mut(&mut self) -> &mut GameMatrix { [INFO] [stderr] | ^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: method `get_internal` is never used [INFO] [stderr] --> src/engine.rs:103:12 [INFO] [stderr] | [INFO] [stderr] 67 | impl GameMatrix { [INFO] [stderr] | --------------- method in this implementation [INFO] [stderr] ... [INFO] [stderr] 103 | pub fn get_internal(&self) -> &DMatrix { [INFO] [stderr] | ^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused `Result` that must be used [INFO] [stderr] --> src/main.rs:58:13 [INFO] [stderr] | [INFO] [stderr] 58 | render(&mut game, &mut stdout()); [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] 58 | let _ = render(&mut game, &mut stdout()); [INFO] [stderr] | +++++++ [INFO] [stderr] [INFO] [stderr] warning: `game-of-life` (bin "game-of-life" test) generated 7 warnings (run `cargo fix --bin "game-of-life" --tests` to apply 3 suggestions) [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.09s [INFO] [stderr] Running unittests src/main.rs (/opt/rustwide/target/x86_64-unknown-linux-musl/debug/deps/game_of_life-01a7276ce84ff77b) [INFO] [stdout] [INFO] [stdout] running 3 tests [INFO] [stdout] test engine::tests::test_get_offset ... ok [INFO] [stdout] test engine::tests::test_internal_top_left_neighbor_alive ... ok [INFO] [stdout] test engine::tests::test_neighbor_cells ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "fda2367f175499825538eb72da5da726866eabea5319212ab15f988447338eb8", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "fda2367f175499825538eb72da5da726866eabea5319212ab15f988447338eb8", kill_on_drop: false }` [INFO] [stdout] fda2367f175499825538eb72da5da726866eabea5319212ab15f988447338eb8