[INFO] cloning repository https://github.com/spencerharmon/qwertysynth
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/spencerharmon/qwertysynth" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fspencerharmon%2Fqwertysynth", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fspencerharmon%2Fqwertysynth'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] fcc3dc053210d506023e1e88ca4960ac656cc88b
[INFO] checking spencerharmon/qwertysynth against 4a9d5368df6450bbd2fc8dde4508c3e5d83bb19d for pr-159598
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fspencerharmon%2Fqwertysynth" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/spencerharmon/qwertysynth
[INFO] finished tweaking git repo https://github.com/spencerharmon/qwertysynth
[INFO] tweaked toml for git repo https://github.com/spencerharmon/qwertysynth written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/spencerharmon/qwertysynth on toolchain 4a9d5368df6450bbd2fc8dde4508c3e5d83bb19d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4a9d5368df6450bbd2fc8dde4508c3e5d83bb19d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/spencerharmon/qwertysynth 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" "+4a9d5368df6450bbd2fc8dde4508c3e5d83bb19d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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@sha256:00c5645b54fe3ce5dae1417175e3c7fb6a6646c021d554ecd63a097b8b9f3602" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] f73e3dabb694a5a5a6abf5b6d16df6228a9d60a9003f11df25069528d82ea539
[INFO] running `Command { std: "docker" "start" "f73e3dabb694a5a5a6abf5b6d16df6228a9d60a9003f11df25069528d82ea539", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f73e3dabb694a5a5a6abf5b6d16df6228a9d60a9003f11df25069528d82ea539", 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" "f73e3dabb694a5a5a6abf5b6d16df6228a9d60a9003f11df25069528d82ea539" "/opt/rustwide/cargo-home/bin/cargo" "+4a9d5368df6450bbd2fc8dde4508c3e5d83bb19d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f73e3dabb694a5a5a6abf5b6d16df6228a9d60a9003f11df25069528d82ea539", 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" "f73e3dabb694a5a5a6abf5b6d16df6228a9d60a9003f11df25069528d82ea539" "/opt/rustwide/cargo-home/bin/cargo" "+4a9d5368df6450bbd2fc8dde4508c3e5d83bb19d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
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[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]   --> src/equal_temperment.rs:27:63
[INFO] [stdout]    |
[INFO] [stdout] 27 |     let mut top_freq: f32 = bottom_freq * self.multiplier as f32;;
[INFO] [stdout]    |                                                                  ^ help: remove this semicolon
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(redundant_semicolons)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `thread` and `time`
[INFO] [stdout]  --> src/output.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{thread, time};
[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: `tokio::task`
[INFO] [stdout]  --> src/output.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use tokio::task;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Duration` and `sleep`
[INFO] [stdout]  --> src/output.rs:3:19
[INFO] [stdout]   |
[INFO] [stdout] 3 | use tokio::time::{sleep, Duration};
[INFO] [stdout]   |                   ^^^^^  ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated type alias `jack::ClosureProcessHandler`: Prefer using jack::contrib::ClosureProcessHandler directly.
[INFO] [stdout]   --> src/output.rs:46:29
[INFO] [stdout]    |
[INFO] [stdout] 46 |         let process = jack::ClosureProcessHandler::new(
[INFO] [stdout]    |                             ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated type alias `eframe::egui::TopBottomPanel`: Use Panel::top or Panel::bottom instead
[INFO] [stdout]   --> src/gui/mod.rs:82:12
[INFO] [stdout]    |
[INFO] [stdout] 82 |         egui::TopBottomPanel::bottom("info_bar").show(&ctx, |ui| {
[INFO] [stdout]    |               ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]   --> src/equal_temperment.rs:27:63
[INFO] [stdout]    |
[INFO] [stdout] 27 |     let mut top_freq: f32 = bottom_freq * self.multiplier as f32;;
[INFO] [stdout]    |                                                                  ^ help: remove this semicolon
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(redundant_semicolons)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `thread` and `time`
[INFO] [stdout]  --> src/output.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{thread, time};
[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: `tokio::task`
[INFO] [stdout]  --> src/output.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use tokio::task;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Duration` and `sleep`
[INFO] [stdout]  --> src/output.rs:3:19
[INFO] [stdout]   |
[INFO] [stdout] 3 | use tokio::time::{sleep, Duration};
[INFO] [stdout]   |                   ^^^^^  ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated type alias `jack::ClosureProcessHandler`: Prefer using jack::contrib::ClosureProcessHandler directly.
[INFO] [stdout]   --> src/output.rs:46:29
[INFO] [stdout]    |
[INFO] [stdout] 46 |         let process = jack::ClosureProcessHandler::new(
[INFO] [stdout]    |                             ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated type alias `eframe::egui::TopBottomPanel`: Use Panel::top or Panel::bottom instead
[INFO] [stdout]   --> src/gui/mod.rs:82:12
[INFO] [stdout]    |
[INFO] [stdout] 82 |         egui::TopBottomPanel::bottom("info_bar").show(&ctx, |ui| {
[INFO] [stdout]    |               ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: falling back to `f32` as the trait bound `f32: From<f64>` is not satisfied
[INFO] [stdout]   --> src/gui/keyboard_widget.rs:61:20
[INFO] [stdout]    |
[INFO] [stdout] 61 |     egui::Stroke::new(1.0, stroke_color),
[INFO] [stdout]    |                       ^^^ help: explicitly specify the type as `f32`: `1.0_f32`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #154024 <https://github.com/rust-lang/rust/issues/154024>
[INFO] [stdout]    = note: `#[warn(float_literal_f32_fallback)]` (part of `#[warn(future_incompatible)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `eframe::egui::Panel::show`: Use show_inside() instead
[INFO] [stdout]   --> src/gui/mod.rs:82:47
[INFO] [stdout]    |
[INFO] [stdout] 82 |         egui::TopBottomPanel::bottom("info_bar").show(&ctx, |ui| {
[INFO] [stdout]    |                                                  ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::voice::Voice`
[INFO] [stdout]   --> src/main.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 | use crate::voice::Voice;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `base_freq`
[INFO] [stdout]   --> src/output.rs:18:2
[INFO] [stdout]    |
[INFO] [stdout] 18 |     base_freq: f32,
[INFO] [stdout]    |     ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_base_freq`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `subdivisions`
[INFO] [stdout]   --> src/output.rs:19:2
[INFO] [stdout]    |
[INFO] [stdout] 19 |     subdivisions: u8,
[INFO] [stdout]    |     ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_subdivisions`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `active_client`
[INFO] [stdout]   --> src/output.rs:76:13
[INFO] [stdout]    |
[INFO] [stdout] 76 |         let active_client = client.activate_async((), process).unwrap();
[INFO] [stdout]    |             ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_active_client`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `key_fut`
[INFO] [stdout]   --> src/output.rs:81:6
[INFO] [stdout]    |
[INFO] [stdout] 81 |     let key_fut = keyboard::create_keyboard_listener(key_on_tx, key_off_tx);
[INFO] [stdout]    |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_key_fut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `DEFAULT_BASE_FREQUENCY` is never used
[INFO] [stdout]  --> src/equal_temperment.rs:4:11
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub const DEFAULT_BASE_FREQUENCY: f32 = 440.0;
[INFO] [stdout]   |           ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/output.rs:14:12
[INFO] [stdout]    |
[INFO] [stdout] 13 | impl Output {
[INFO] [stdout]    | ----------- associated function in this implementation
[INFO] [stdout] 14 |     pub fn new() -> Output {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/instrument.rs:132:10
[INFO] [stdout]     |
[INFO] [stdout] 132 |             out_l.send(sample);
[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] 132 |             let _ = out_l.send(sample);
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/instrument.rs:133:10
[INFO] [stdout]     |
[INFO] [stdout] 133 |             out_r.send(sample);
[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] 133 |             let _ = out_r.send(sample);
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `buffer_L_tx` should have a snake case name
[INFO] [stdout]   --> src/output.rs:25:14
[INFO] [stdout]    |
[INFO] [stdout] 25 |         let (buffer_L_tx, buffer_L_rx) = bounded(1000);
[INFO] [stdout]    |              ^^^^^^^^^^^ help: convert the identifier to snake case: `buffer_l_tx`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `buffer_L_rx` should have a snake case name
[INFO] [stdout]   --> src/output.rs:25:27
[INFO] [stdout]    |
[INFO] [stdout] 25 |         let (buffer_L_tx, buffer_L_rx) = bounded(1000);
[INFO] [stdout]    |                           ^^^^^^^^^^^ help: convert the identifier to snake case: `buffer_l_rx`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `buffer_R_tx` should have a snake case name
[INFO] [stdout]   --> src/output.rs:26:14
[INFO] [stdout]    |
[INFO] [stdout] 26 |         let (buffer_R_tx, buffer_R_rx) = bounded(1000);
[INFO] [stdout]    |              ^^^^^^^^^^^ help: convert the identifier to snake case: `buffer_r_tx`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `buffer_R_rx` should have a snake case name
[INFO] [stdout]   --> src/output.rs:26:27
[INFO] [stdout]    |
[INFO] [stdout] 26 |         let (buffer_R_tx, buffer_R_rx) = bounded(1000);
[INFO] [stdout]    |                           ^^^^^^^^^^^ help: convert the identifier to snake case: `buffer_r_rx`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/output.rs:84:2
[INFO] [stdout]    |
[INFO] [stdout] 84 | /     instrument.play(
[INFO] [stdout] 85 | |         key_on_rx,
[INFO] [stdout] 86 | |         key_off_rx,
[INFO] [stdout] 87 | |         swap_in,
[INFO] [stdout] ...  |
[INFO] [stdout] 91 | |         buffer_R_tx,
[INFO] [stdout] 92 | |     ).await;
[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] 84 |     let _ = instrument.play(
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: falling back to `f32` as the trait bound `f32: From<f64>` is not satisfied
[INFO] [stdout]   --> src/gui/keyboard_widget.rs:61:20
[INFO] [stdout]    |
[INFO] [stdout] 61 |     egui::Stroke::new(1.0, stroke_color),
[INFO] [stdout]    |                       ^^^ help: explicitly specify the type as `f32`: `1.0_f32`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #154024 <https://github.com/rust-lang/rust/issues/154024>
[INFO] [stdout]    = note: `#[warn(float_literal_f32_fallback)]` (part of `#[warn(future_incompatible)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `eframe::egui::Panel::show`: Use show_inside() instead
[INFO] [stdout]   --> src/gui/mod.rs:82:47
[INFO] [stdout]    |
[INFO] [stdout] 82 |         egui::TopBottomPanel::bottom("info_bar").show(&ctx, |ui| {
[INFO] [stdout]    |                                                  ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::voice::Voice`
[INFO] [stdout]   --> src/main.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 | use crate::voice::Voice;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `base_freq`
[INFO] [stdout]   --> src/output.rs:18:2
[INFO] [stdout]    |
[INFO] [stdout] 18 |     base_freq: f32,
[INFO] [stdout]    |     ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_base_freq`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `subdivisions`
[INFO] [stdout]   --> src/output.rs:19:2
[INFO] [stdout]    |
[INFO] [stdout] 19 |     subdivisions: u8,
[INFO] [stdout]    |     ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_subdivisions`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `active_client`
[INFO] [stdout]   --> src/output.rs:76:13
[INFO] [stdout]    |
[INFO] [stdout] 76 |         let active_client = client.activate_async((), process).unwrap();
[INFO] [stdout]    |             ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_active_client`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `key_fut`
[INFO] [stdout]   --> src/output.rs:81:6
[INFO] [stdout]    |
[INFO] [stdout] 81 |     let key_fut = keyboard::create_keyboard_listener(key_on_tx, key_off_tx);
[INFO] [stdout]    |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_key_fut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `DEFAULT_BASE_FREQUENCY` is never used
[INFO] [stdout]  --> src/equal_temperment.rs:4:11
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub const DEFAULT_BASE_FREQUENCY: f32 = 440.0;
[INFO] [stdout]   |           ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/output.rs:14:12
[INFO] [stdout]    |
[INFO] [stdout] 13 | impl Output {
[INFO] [stdout]    | ----------- associated function in this implementation
[INFO] [stdout] 14 |     pub fn new() -> Output {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/instrument.rs:132:10
[INFO] [stdout]     |
[INFO] [stdout] 132 |             out_l.send(sample);
[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] 132 |             let _ = out_l.send(sample);
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/instrument.rs:133:10
[INFO] [stdout]     |
[INFO] [stdout] 133 |             out_r.send(sample);
[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] 133 |             let _ = out_r.send(sample);
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `buffer_L_tx` should have a snake case name
[INFO] [stdout]   --> src/output.rs:25:14
[INFO] [stdout]    |
[INFO] [stdout] 25 |         let (buffer_L_tx, buffer_L_rx) = bounded(1000);
[INFO] [stdout]    |              ^^^^^^^^^^^ help: convert the identifier to snake case: `buffer_l_tx`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `buffer_L_rx` should have a snake case name
[INFO] [stdout]   --> src/output.rs:25:27
[INFO] [stdout]    |
[INFO] [stdout] 25 |         let (buffer_L_tx, buffer_L_rx) = bounded(1000);
[INFO] [stdout]    |                           ^^^^^^^^^^^ help: convert the identifier to snake case: `buffer_l_rx`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `buffer_R_tx` should have a snake case name
[INFO] [stdout]   --> src/output.rs:26:14
[INFO] [stdout]    |
[INFO] [stdout] 26 |         let (buffer_R_tx, buffer_R_rx) = bounded(1000);
[INFO] [stdout]    |              ^^^^^^^^^^^ help: convert the identifier to snake case: `buffer_r_tx`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `buffer_R_rx` should have a snake case name
[INFO] [stdout]   --> src/output.rs:26:27
[INFO] [stdout]    |
[INFO] [stdout] 26 |         let (buffer_R_tx, buffer_R_rx) = bounded(1000);
[INFO] [stdout]    |                           ^^^^^^^^^^^ help: convert the identifier to snake case: `buffer_r_rx`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/output.rs:84:2
[INFO] [stdout]    |
[INFO] [stdout] 84 | /     instrument.play(
[INFO] [stdout] 85 | |         key_on_rx,
[INFO] [stdout] 86 | |         key_off_rx,
[INFO] [stdout] 87 | |         swap_in,
[INFO] [stdout] ...  |
[INFO] [stdout] 91 | |         buffer_R_tx,
[INFO] [stdout] 92 | |     ).await;
[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] 84 |     let _ = instrument.play(
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3m 33s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: naga v29.0.1, nix v0.29.0, wgpu v29.0.1, wgpu-core v29.0.1, wgpu-hal v29.0.1, winit v0.30.13
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 6`
[INFO] running `Command { std: "docker" "inspect" "f73e3dabb694a5a5a6abf5b6d16df6228a9d60a9003f11df25069528d82ea539", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f73e3dabb694a5a5a6abf5b6d16df6228a9d60a9003f11df25069528d82ea539", kill_on_drop: false }`
[INFO] [stdout] f73e3dabb694a5a5a6abf5b6d16df6228a9d60a9003f11df25069528d82ea539
