[INFO] cloning repository https://github.com/alvinmatias69/simple-2048
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/alvinmatias69/simple-2048" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falvinmatias69%2Fsimple-2048", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falvinmatias69%2Fsimple-2048'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e4d59fe5702971379aba658849bcc76343b89f51
[INFO] testing alvinmatias69/simple-2048 against 1.90.0 for beta-1.91-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falvinmatias69%2Fsimple-2048" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/alvinmatias69/simple-2048
[INFO] finished tweaking git repo https://github.com/alvinmatias69/simple-2048
[INFO] tweaked toml for git repo https://github.com/alvinmatias69/simple-2048 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/alvinmatias69/simple-2048 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/alvinmatias69/simple-2048 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 }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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 }`
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[INFO] running `Command { std: "docker" "start" "-a" "3af08ca025690a18cccaa676a8b3da69edb474ab4e4d7a465eacf87d6ac74e0c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3af08ca025690a18cccaa676a8b3da69edb474ab4e4d7a465eacf87d6ac74e0c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3af08ca025690a18cccaa676a8b3da69edb474ab4e4d7a465eacf87d6ac74e0c", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 3dcad01a76bec25038c5b9f830e156719ff220f240c619463e8ed3800f7413f1
[INFO] running `Command { std: "docker" "start" "-a" "3dcad01a76bec25038c5b9f830e156719ff220f240c619463e8ed3800f7413f1", kill_on_drop: false }`
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[INFO] [stderr]    Compiling simple-2048 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `Mesh`
[INFO] [stdout]  --> src/game/display/board.rs:5:16
[INFO] [stdout]   |
[INFO] [stdout] 5 | use graphics::{Mesh, Text, TextFragment};
[INFO] [stdout]   |                ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `InputInterface` is never used
[INFO] [stdout]  --> src/interface/input/interface.rs:3:11
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub trait InputInterface {
[INFO] [stdout]   |           ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `InputString` is never constructed
[INFO] [stdout]  --> src/interface/input/string.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct InputString {}
[INFO] [stdout]   |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `OutputInterface` is never used
[INFO] [stdout]  --> src/interface/output/interface.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub trait OutputInterface {
[INFO] [stdout]   |           ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `OutputString` is never constructed
[INFO] [stdout]  --> src/interface/output/string.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub struct OutputString {}
[INFO] [stdout]   |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/game/main.rs:142:17
[INFO] [stdout]     |
[INFO] [stdout] 142 |                 sound::play(ctx, SoundType::Menu);
[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] 142 |                 let _ = sound::play(ctx, SoundType::Menu);
[INFO] [stdout]     |                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/game/main.rs:147:17
[INFO] [stdout]     |
[INFO] [stdout] 147 |                 sound::play(ctx, SoundType::Menu);
[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] 147 |                 let _ = sound::play(ctx, SoundType::Menu);
[INFO] [stdout]     |                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/game/main.rs:195:9
[INFO] [stdout]     |
[INFO] [stdout] 195 |         sound::play(ctx, SoundType::Start);
[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] 195 |         let _ = sound::play(ctx, SoundType::Start);
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/game/main.rs:207:9
[INFO] [stdout]     |
[INFO] [stdout] 207 |         sound::play(ctx, SoundType::Start);
[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] 207 |         let _ = sound::play(ctx, SoundType::Start);
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3m 50s
[INFO] running `Command { std: "docker" "inspect" "3dcad01a76bec25038c5b9f830e156719ff220f240c619463e8ed3800f7413f1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3dcad01a76bec25038c5b9f830e156719ff220f240c619463e8ed3800f7413f1", kill_on_drop: false }`
[INFO] [stdout] 3dcad01a76bec25038c5b9f830e156719ff220f240c619463e8ed3800f7413f1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] fc9a122866166902db1b443085196f1f1b236f1e6e9f06f7d9383411c716024f
[INFO] running `Command { std: "docker" "start" "-a" "fc9a122866166902db1b443085196f1f1b236f1e6e9f06f7d9383411c716024f", kill_on_drop: false }`
[INFO] [stderr]    Compiling simple-2048 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `Mesh`
[INFO] [stdout]  --> src/game/display/board.rs:5:16
[INFO] [stdout]   |
[INFO] [stdout] 5 | use graphics::{Mesh, Text, TextFragment};
[INFO] [stdout]   |                ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `InputInterface` is never used
[INFO] [stdout]  --> src/interface/input/interface.rs:3:11
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub trait InputInterface {
[INFO] [stdout]   |           ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `InputString` is never constructed
[INFO] [stdout]  --> src/interface/input/string.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct InputString {}
[INFO] [stdout]   |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `OutputInterface` is never used
[INFO] [stdout]  --> src/interface/output/interface.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub trait OutputInterface {
[INFO] [stdout]   |           ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `OutputString` is never constructed
[INFO] [stdout]  --> src/interface/output/string.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub struct OutputString {}
[INFO] [stdout]   |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/game/main.rs:142:17
[INFO] [stdout]     |
[INFO] [stdout] 142 |                 sound::play(ctx, SoundType::Menu);
[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] 142 |                 let _ = sound::play(ctx, SoundType::Menu);
[INFO] [stdout]     |                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/game/main.rs:147:17
[INFO] [stdout]     |
[INFO] [stdout] 147 |                 sound::play(ctx, SoundType::Menu);
[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] 147 |                 let _ = sound::play(ctx, SoundType::Menu);
[INFO] [stdout]     |                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/game/main.rs:195:9
[INFO] [stdout]     |
[INFO] [stdout] 195 |         sound::play(ctx, SoundType::Start);
[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] 195 |         let _ = sound::play(ctx, SoundType::Start);
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/game/main.rs:207:9
[INFO] [stdout]     |
[INFO] [stdout] 207 |         sound::play(ctx, SoundType::Start);
[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] 207 |         let _ = sound::play(ctx, SoundType::Start);
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.95s
[INFO] running `Command { std: "docker" "inspect" "fc9a122866166902db1b443085196f1f1b236f1e6e9f06f7d9383411c716024f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fc9a122866166902db1b443085196f1f1b236f1e6e9f06f7d9383411c716024f", kill_on_drop: false }`
[INFO] [stdout] fc9a122866166902db1b443085196f1f1b236f1e6e9f06f7d9383411c716024f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] ad0bfa6867a89492319b1ed14b1cec89748e74cae0536e48295a176fc49e6255
[INFO] running `Command { std: "docker" "start" "-a" "ad0bfa6867a89492319b1ed14b1cec89748e74cae0536e48295a176fc49e6255", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `Mesh`
[INFO] [stderr]  --> src/game/display/board.rs:5:16
[INFO] [stderr]   |
[INFO] [stderr] 5 | use graphics::{Mesh, Text, TextFragment};
[INFO] [stderr]   |                ^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait `InputInterface` is never used
[INFO] [stderr]  --> src/interface/input/interface.rs:3:11
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub trait InputInterface {
[INFO] [stderr]   |           ^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct `InputString` is never constructed
[INFO] [stderr]  --> src/interface/input/string.rs:6:12
[INFO] [stderr]   |
[INFO] [stderr] 6 | pub struct InputString {}
[INFO] [stderr]   |            ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait `OutputInterface` is never used
[INFO] [stderr]  --> src/interface/output/interface.rs:1:11
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub trait OutputInterface {
[INFO] [stderr]   |           ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `OutputString` is never constructed
[INFO] [stderr]  --> src/interface/output/string.rs:3:12
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub struct OutputString {}
[INFO] [stderr]   |            ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> src/game/main.rs:142:17
[INFO] [stderr]     |
[INFO] [stderr] 142 |                 sound::play(ctx, SoundType::Menu);
[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] 142 |                 let _ = sound::play(ctx, SoundType::Menu);
[INFO] [stderr]     |                 +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> src/game/main.rs:147:17
[INFO] [stderr]     |
[INFO] [stderr] 147 |                 sound::play(ctx, SoundType::Menu);
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 147 |                 let _ = sound::play(ctx, SoundType::Menu);
[INFO] [stderr]     |                 +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> src/game/main.rs:195:9
[INFO] [stderr]     |
[INFO] [stderr] 195 |         sound::play(ctx, SoundType::Start);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 195 |         let _ = sound::play(ctx, SoundType::Start);
[INFO] [stderr]     |         +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> src/game/main.rs:207:9
[INFO] [stderr]     |
[INFO] [stderr] 207 |         sound::play(ctx, SoundType::Start);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 207 |         let _ = sound::play(ctx, SoundType::Start);
[INFO] [stderr]     |         +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: `simple-2048` (bin "simple-2048" test) generated 9 warnings (run `cargo fix --bin "simple-2048" --tests` to apply 1 suggestion)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.21s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/simple_2048-0b0fd2e10ae2eb19)
[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" "ad0bfa6867a89492319b1ed14b1cec89748e74cae0536e48295a176fc49e6255", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ad0bfa6867a89492319b1ed14b1cec89748e74cae0536e48295a176fc49e6255", kill_on_drop: false }`
[INFO] [stdout] ad0bfa6867a89492319b1ed14b1cec89748e74cae0536e48295a176fc49e6255
