[INFO] cloning repository https://github.com/burbokop/audio_synthesis
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/burbokop/audio_synthesis" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fburbokop%2Faudio_synthesis", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fburbokop%2Faudio_synthesis'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 305e1c46fe2214e5e84248475034d7cdc19ba763
[INFO] checking burbokop/audio_synthesis against master#bca37a20bd376ce3fd138e7cdee7fe704e0f8814 for pr-139493-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fburbokop%2Faudio_synthesis" "/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/burbokop/audio_synthesis
[INFO] finished tweaking git repo https://github.com/burbokop/audio_synthesis
[INFO] tweaked toml for git repo https://github.com/burbokop/audio_synthesis written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/burbokop/audio_synthesis on toolchain bca37a20bd376ce3fd138e7cdee7fe704e0f8814
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/burbokop/audio_synthesis 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" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded getrandom v0.2.5
[INFO] [stderr]   Downloaded twang v0.8.0
[INFO] [stderr]   Downloaded fon v0.6.0
[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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 72f2836cfebf8d6849d5d2b80b6cad331bdd931d352b0fab9d08d2582db4f4a5
[INFO] running `Command { std: "docker" "start" "-a" "72f2836cfebf8d6849d5d2b80b6cad331bdd931d352b0fab9d08d2582db4f4a5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "72f2836cfebf8d6849d5d2b80b6cad331bdd931d352b0fab9d08d2582db4f4a5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "72f2836cfebf8d6849d5d2b80b6cad331bdd931d352b0fab9d08d2582db4f4a5", kill_on_drop: false }`
[INFO] [stdout] 72f2836cfebf8d6849d5d2b80b6cad331bdd931d352b0fab9d08d2582db4f4a5
[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=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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 96d1a9bc51722a2238512962c96df7ca0ef2e526e6197be8e2876e3b97d0f5e4
[INFO] running `Command { std: "docker" "start" "-a" "96d1a9bc51722a2238512962c96df7ca0ef2e526e6197be8e2876e3b97d0f5e4", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.119
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling syn v1.0.86
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling alsa-sys v0.3.1
[INFO] [stderr]    Compiling quote v1.0.15
[INFO] [stderr]    Compiling version-compare v0.1.0
[INFO] [stderr]    Compiling minimp3-sys v0.3.2
[INFO] [stderr]    Compiling libm v0.2.2
[INFO] [stderr]     Checking lock_api v0.4.6
[INFO] [stderr]    Compiling sdl2-sys v0.35.2
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling cpal v0.13.5
[INFO] [stderr]     Checking ogg v0.8.0
[INFO] [stderr]    Compiling twang v0.8.0
[INFO] [stderr]    Compiling sdl2 v0.35.2
[INFO] [stderr]     Checking ppv-lite86 v0.2.16
[INFO] [stderr]     Checking lewton v0.10.2
[INFO] [stderr]     Checking fon v0.6.0
[INFO] [stderr]     Checking num-complex v0.4.0
[INFO] [stderr]     Checking num-bigint v0.4.3
[INFO] [stderr]     Checking getrandom v0.2.5
[INFO] [stderr]     Checking parking_lot_core v0.8.5
[INFO] [stderr]     Checking nix v0.23.1
[INFO] [stderr]     Checking slice-deque v0.3.0
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking parking_lot v0.11.2
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking num-rational v0.4.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.30
[INFO] [stderr]     Checking num v0.4.0
[INFO] [stderr]     Checking thiserror v1.0.30
[INFO] [stderr]     Checking minimp3 v0.5.1
[INFO] [stderr]     Checking alsa v0.6.0
[INFO] [stderr]     Checking rodio v0.15.0
[INFO] [stderr]     Checking audio v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `Ch64`
[INFO] [stdout]  --> src/sample.rs:1:29
[INFO] [stdout]   |
[INFO] [stdout] 1 | use fon::chan::{Ch16, Ch32, Ch64};
[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: `Div`
[INFO] [stdout]  --> src/processors.rs:1:16
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::ops::{Div, Add, Mul};
[INFO] [stdout]   |                ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `AdderExt`, `DeterioratorExt`, and `IntegratorExt`
[INFO] [stdout]  --> src/main.rs:8:18
[INFO] [stdout]   |
[INFO] [stdout] 8 | use processors::{DeterioratorExt, IntegratorExt, AdderExt, AmplifierExt, triangular_generator};
[INFO] [stdout]   |                  ^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^  ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `fon::chan::Ch16`
[INFO] [stdout]   --> src/main.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | use fon::chan::Ch16;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::sink::PlaybackMonoSink`
[INFO] [stdout]   --> src/main.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 20 | use crate::sink::PlaybackMonoSink;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `f`
[INFO] [stdout]   --> src/sink.rs:19:19
[INFO] [stdout]    |
[INFO] [stdout] 19 |     fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
[INFO] [stdout]    |                   ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/monitor.rs:32:9
[INFO] [stdout]    |
[INFO] [stdout] 32 |     let mut timer = Instant::now();
[INFO] [stdout]    |         ----^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/monitor.rs:35:9
[INFO] [stdout]    |
[INFO] [stdout] 35 |     let mut chart_surface = Surface::from_pixelmasks(512, 512, masks).unwrap().into_canvas().unwrap();
[INFO] [stdout]    |         ----^^^^^^^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `frame_rate`
[INFO] [stdout]  --> src/monitor.rs:9:38
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub fn monitor_once<I>(iter: &mut I, frame_rate: u32) 
[INFO] [stdout]   |                                      ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_frame_rate`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `timer`
[INFO] [stdout]   --> src/monitor.rs:32:9
[INFO] [stdout]    |
[INFO] [stdout] 32 |     let mut timer = Instant::now();
[INFO] [stdout]    |         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_timer`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `chart_surface`
[INFO] [stdout]   --> src/monitor.rs:35:9
[INFO] [stdout]    |
[INFO] [stdout] 35 |     let mut chart_surface = Surface::from_pixelmasks(512, 512, masks).unwrap().into_canvas().unwrap();
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_chart_surface`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:54:9
[INFO] [stdout]    |
[INFO] [stdout] 54 |     let mut synth = Synth::new(proc, |proc, mut frame: Frame<_, 1>| {
[INFO] [stdout]    |         ----^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `synth`
[INFO] [stdout]   --> src/main.rs:54:9
[INFO] [stdout]    |
[INFO] [stdout] 54 |     let mut synth = Synth::new(proc, |proc, mut frame: Frame<_, 1>| {
[INFO] [stdout]    |         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_synth`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `f`
[INFO] [stdout]   --> src/main.rs:69:9
[INFO] [stdout]    |
[INFO] [stdout] 69 |     let f = sin_generator(48000 * 10, 0.1).amplified(0.5); // deteriorated(4.);
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `f2`
[INFO] [stdout]   --> src/main.rs:70:9
[INFO] [stdout]    |
[INFO] [stdout] 70 |     let f2 = sin_generator(48000 * 10, 0.025).amplified(0.25); // deteriorated(4.);
[INFO] [stdout]    |         ^^ help: if this is intentional, prefix it with an underscore: `_f2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `MonoFrameSource` is never constructed
[INFO] [stdout]   --> src/source.rs:34:19
[INFO] [stdout]    |
[INFO] [stdout] 34 | pub(crate) struct MonoFrameSource<'a, Chan: Channel> {
[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 items `new` and `collect_clone` are never used
[INFO] [stdout]   --> src/source.rs:41:12
[INFO] [stdout]    |
[INFO] [stdout] 40 | impl<'a, Chan: Channel + ChanSampleFormat> MonoFrameSource<'a, Chan> {
[INFO] [stdout]    | -------------------------------------------------------------------- associated items in this implementation
[INFO] [stdout] 41 |     pub fn new(frame_iter: &'a mut dyn Iterator<Item = Frame<Chan, 1>>, sample_rate: u32, limit_count: usize) -> Self { 
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 45 |     pub fn collect_clone(self) -> IterSource<<Vec<f32> as IntoIterator>::IntoIter> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `MonoFrameSmaple` is never constructed
[INFO] [stdout]   --> src/sample.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub struct MonoFrameSmaple<Chan: Channel> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `from_frame`, `into_chan`, and `into_f32` are never used
[INFO] [stdout]   --> src/sample.rs:16:12
[INFO] [stdout]    |
[INFO] [stdout] 15 | impl<Chan: Channel> MonoFrameSmaple<Chan> {
[INFO] [stdout]    | ----------------------------------------- associated items in this implementation
[INFO] [stdout] 16 |     pub fn new(chan: Chan) -> Self { MonoFrameSmaple { frame: Frame::<Chan, 1>::new(chan) } }
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 17 |     pub fn from_frame(frame: Frame<Chan, 1>) -> Self { MonoFrameSmaple { frame: frame } }
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 18 |     pub fn into_chan(self) -> Chan { self.frame.channels()[0] }
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 19 |     pub fn into_f32(self) -> f32 { self.frame.channels()[0].to_f32() }
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `ChanSampleFormat` is never used
[INFO] [stdout]   --> src/sample.rs:27:11
[INFO] [stdout]    |
[INFO] [stdout] 27 | pub trait ChanSampleFormat {
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `PlaybackMonoSink` is never constructed
[INFO] [stdout]  --> src/sink.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct PlaybackMonoSink<'a> {
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/sink.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | impl<'a> PlaybackMonoSink<'a> {
[INFO] [stdout]    | ----------------------------- associated function in this implementation
[INFO] [stdout] 12 |     pub fn new(
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Deteriorator` is never constructed
[INFO] [stdout]   --> src/processors.rs:23:12
[INFO] [stdout]    |
[INFO] [stdout] 23 | pub struct Deteriorator<I>
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `DeterioratorExt` is never used
[INFO] [stdout]   --> src/processors.rs:43:11
[INFO] [stdout]    |
[INFO] [stdout] 43 | pub trait DeterioratorExt: Iterator {
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Integrator` is never constructed
[INFO] [stdout]   --> src/processors.rs:67:12
[INFO] [stdout]    |
[INFO] [stdout] 67 | pub struct Integrator<I>
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `IntegratorExt` is never used
[INFO] [stdout]   --> src/processors.rs:98:11
[INFO] [stdout]    |
[INFO] [stdout] 98 | pub trait IntegratorExt: Iterator {
[INFO] [stdout]    |           ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Adder` is never constructed
[INFO] [stdout]    --> src/processors.rs:119:12
[INFO] [stdout]     |
[INFO] [stdout] 119 | pub struct Adder<I0, I1>
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `AdderExt` is never used
[INFO] [stdout]    --> src/processors.rs:164:11
[INFO] [stdout]     |
[INFO] [stdout] 164 | pub trait AdderExt<O>: Iterator {
[INFO] [stdout]     |           ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `width` should have an upper case name
[INFO] [stdout]   --> src/monitor.rs:16:11
[INFO] [stdout]    |
[INFO] [stdout] 16 |     const width: u32 = 600;
[INFO] [stdout]    |           ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_upper_case_globals)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] help: convert the identifier to upper case
[INFO] [stdout]    |
[INFO] [stdout] 16 -     const width: u32 = 600;
[INFO] [stdout] 16 +     const WIDTH: u32 = 600;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `height` should have an upper case name
[INFO] [stdout]   --> src/monitor.rs:17:11
[INFO] [stdout]    |
[INFO] [stdout] 17 |     const height: u32 = 200;
[INFO] [stdout]    |           ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: convert the identifier to upper case
[INFO] [stdout]    |
[INFO] [stdout] 17 -     const height: u32 = 200;
[INFO] [stdout] 17 +     const HEIGHT: u32 = 200;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `prevPoint` should have a snake case name
[INFO] [stdout]   --> src/monitor.rs:37:13
[INFO] [stdout]    |
[INFO] [stdout] 37 |     let mut prevPoint: Option<Point> = None;
[INFO] [stdout]    |             ^^^^^^^^^ help: convert the identifier to snake case: `prev_point`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Ch64`
[INFO] [stdout]  --> src/sample.rs:1:29
[INFO] [stdout]   |
[INFO] [stdout] 1 | use fon::chan::{Ch16, Ch32, Ch64};
[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: `Div`
[INFO] [stdout]  --> src/processors.rs:1:16
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::ops::{Div, Add, Mul};
[INFO] [stdout]   |                ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `AdderExt`, `DeterioratorExt`, and `IntegratorExt`
[INFO] [stdout]  --> src/main.rs:8:18
[INFO] [stdout]   |
[INFO] [stdout] 8 | use processors::{DeterioratorExt, IntegratorExt, AdderExt, AmplifierExt, triangular_generator};
[INFO] [stdout]   |                  ^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^  ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `fon::chan::Ch16`
[INFO] [stdout]   --> src/main.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | use fon::chan::Ch16;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::sink::PlaybackMonoSink`
[INFO] [stdout]   --> src/main.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 20 | use crate::sink::PlaybackMonoSink;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `f`
[INFO] [stdout]   --> src/sink.rs:19:19
[INFO] [stdout]    |
[INFO] [stdout] 19 |     fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
[INFO] [stdout]    |                   ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/monitor.rs:32:9
[INFO] [stdout]    |
[INFO] [stdout] 32 |     let mut timer = Instant::now();
[INFO] [stdout]    |         ----^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/monitor.rs:35:9
[INFO] [stdout]    |
[INFO] [stdout] 35 |     let mut chart_surface = Surface::from_pixelmasks(512, 512, masks).unwrap().into_canvas().unwrap();
[INFO] [stdout]    |         ----^^^^^^^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `frame_rate`
[INFO] [stdout]  --> src/monitor.rs:9:38
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub fn monitor_once<I>(iter: &mut I, frame_rate: u32) 
[INFO] [stdout]   |                                      ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_frame_rate`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `timer`
[INFO] [stdout]   --> src/monitor.rs:32:9
[INFO] [stdout]    |
[INFO] [stdout] 32 |     let mut timer = Instant::now();
[INFO] [stdout]    |         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_timer`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `chart_surface`
[INFO] [stdout]   --> src/monitor.rs:35:9
[INFO] [stdout]    |
[INFO] [stdout] 35 |     let mut chart_surface = Surface::from_pixelmasks(512, 512, masks).unwrap().into_canvas().unwrap();
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_chart_surface`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:54:9
[INFO] [stdout]    |
[INFO] [stdout] 54 |     let mut synth = Synth::new(proc, |proc, mut frame: Frame<_, 1>| {
[INFO] [stdout]    |         ----^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `synth`
[INFO] [stdout]   --> src/main.rs:54:9
[INFO] [stdout]    |
[INFO] [stdout] 54 |     let mut synth = Synth::new(proc, |proc, mut frame: Frame<_, 1>| {
[INFO] [stdout]    |         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_synth`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `f`
[INFO] [stdout]   --> src/main.rs:69:9
[INFO] [stdout]    |
[INFO] [stdout] 69 |     let f = sin_generator(48000 * 10, 0.1).amplified(0.5); // deteriorated(4.);
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `f2`
[INFO] [stdout]   --> src/main.rs:70:9
[INFO] [stdout]    |
[INFO] [stdout] 70 |     let f2 = sin_generator(48000 * 10, 0.025).amplified(0.25); // deteriorated(4.);
[INFO] [stdout]    |         ^^ help: if this is intentional, prefix it with an underscore: `_f2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `MonoFrameSource` is never constructed
[INFO] [stdout]   --> src/source.rs:34:19
[INFO] [stdout]    |
[INFO] [stdout] 34 | pub(crate) struct MonoFrameSource<'a, Chan: Channel> {
[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 items `new` and `collect_clone` are never used
[INFO] [stdout]   --> src/source.rs:41:12
[INFO] [stdout]    |
[INFO] [stdout] 40 | impl<'a, Chan: Channel + ChanSampleFormat> MonoFrameSource<'a, Chan> {
[INFO] [stdout]    | -------------------------------------------------------------------- associated items in this implementation
[INFO] [stdout] 41 |     pub fn new(frame_iter: &'a mut dyn Iterator<Item = Frame<Chan, 1>>, sample_rate: u32, limit_count: usize) -> Self { 
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 45 |     pub fn collect_clone(self) -> IterSource<<Vec<f32> as IntoIterator>::IntoIter> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `MonoFrameSmaple` is never constructed
[INFO] [stdout]   --> src/sample.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub struct MonoFrameSmaple<Chan: Channel> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `from_frame`, `into_chan`, and `into_f32` are never used
[INFO] [stdout]   --> src/sample.rs:16:12
[INFO] [stdout]    |
[INFO] [stdout] 15 | impl<Chan: Channel> MonoFrameSmaple<Chan> {
[INFO] [stdout]    | ----------------------------------------- associated items in this implementation
[INFO] [stdout] 16 |     pub fn new(chan: Chan) -> Self { MonoFrameSmaple { frame: Frame::<Chan, 1>::new(chan) } }
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 17 |     pub fn from_frame(frame: Frame<Chan, 1>) -> Self { MonoFrameSmaple { frame: frame } }
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 18 |     pub fn into_chan(self) -> Chan { self.frame.channels()[0] }
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 19 |     pub fn into_f32(self) -> f32 { self.frame.channels()[0].to_f32() }
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `ChanSampleFormat` is never used
[INFO] [stdout]   --> src/sample.rs:27:11
[INFO] [stdout]    |
[INFO] [stdout] 27 | pub trait ChanSampleFormat {
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `PlaybackMonoSink` is never constructed
[INFO] [stdout]  --> src/sink.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct PlaybackMonoSink<'a> {
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/sink.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | impl<'a> PlaybackMonoSink<'a> {
[INFO] [stdout]    | ----------------------------- associated function in this implementation
[INFO] [stdout] 12 |     pub fn new(
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Deteriorator` is never constructed
[INFO] [stdout]   --> src/processors.rs:23:12
[INFO] [stdout]    |
[INFO] [stdout] 23 | pub struct Deteriorator<I>
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `DeterioratorExt` is never used
[INFO] [stdout]   --> src/processors.rs:43:11
[INFO] [stdout]    |
[INFO] [stdout] 43 | pub trait DeterioratorExt: Iterator {
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Integrator` is never constructed
[INFO] [stdout]   --> src/processors.rs:67:12
[INFO] [stdout]    |
[INFO] [stdout] 67 | pub struct Integrator<I>
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `IntegratorExt` is never used
[INFO] [stdout]   --> src/processors.rs:98:11
[INFO] [stdout]    |
[INFO] [stdout] 98 | pub trait IntegratorExt: Iterator {
[INFO] [stdout]    |           ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Adder` is never constructed
[INFO] [stdout]    --> src/processors.rs:119:12
[INFO] [stdout]     |
[INFO] [stdout] 119 | pub struct Adder<I0, I1>
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `AdderExt` is never used
[INFO] [stdout]    --> src/processors.rs:164:11
[INFO] [stdout]     |
[INFO] [stdout] 164 | pub trait AdderExt<O>: Iterator {
[INFO] [stdout]     |           ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `width` should have an upper case name
[INFO] [stdout]   --> src/monitor.rs:16:11
[INFO] [stdout]    |
[INFO] [stdout] 16 |     const width: u32 = 600;
[INFO] [stdout]    |           ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_upper_case_globals)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] help: convert the identifier to upper case
[INFO] [stdout]    |
[INFO] [stdout] 16 -     const width: u32 = 600;
[INFO] [stdout] 16 +     const WIDTH: u32 = 600;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `height` should have an upper case name
[INFO] [stdout]   --> src/monitor.rs:17:11
[INFO] [stdout]    |
[INFO] [stdout] 17 |     const height: u32 = 200;
[INFO] [stdout]    |           ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: convert the identifier to upper case
[INFO] [stdout]    |
[INFO] [stdout] 17 -     const height: u32 = 200;
[INFO] [stdout] 17 +     const HEIGHT: u32 = 200;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `prevPoint` should have a snake case name
[INFO] [stdout]   --> src/monitor.rs:37:13
[INFO] [stdout]    |
[INFO] [stdout] 37 |     let mut prevPoint: Option<Point> = None;
[INFO] [stdout]    |             ^^^^^^^^^ help: convert the identifier to snake case: `prev_point`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 21.54s
[INFO] running `Command { std: "docker" "inspect" "96d1a9bc51722a2238512962c96df7ca0ef2e526e6197be8e2876e3b97d0f5e4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "96d1a9bc51722a2238512962c96df7ca0ef2e526e6197be8e2876e3b97d0f5e4", kill_on_drop: false }`
[INFO] [stdout] 96d1a9bc51722a2238512962c96df7ca0ef2e526e6197be8e2876e3b97d0f5e4
