[INFO] cloning repository https://github.com/rosofo/rsynth
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/rosofo/rsynth" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frosofo%2Frsynth", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frosofo%2Frsynth'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4658017e919ef8e3fbc4b0243c72a023157ab191
[INFO] checking rosofo/rsynth against try#a7a572ce3edd6d476191fbfe92c9c1986e009b34 for pr-87190-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frosofo%2Frsynth" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/rosofo/rsynth on toolchain a7a572ce3edd6d476191fbfe92c9c1986e009b34
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/rosofo/rsynth
[INFO] finished tweaking git repo https://github.com/rosofo/rsynth
[INFO] tweaked toml for git repo https://github.com/rosofo/rsynth written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/rosofo/rsynth already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded js-sys v0.3.50
[INFO] [stderr]   Downloaded syn v1.0.71
[INFO] [stderr]   Downloaded redox_syscall v0.2.7
[INFO] [stderr]   Downloaded tui v0.15.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 13b0f1983eba06f3d6d8bf9e9cff5fc1e2e4d0ccc44522fa5082b9f3546b0f4b
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "13b0f1983eba06f3d6d8bf9e9cff5fc1e2e4d0ccc44522fa5082b9f3546b0f4b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "13b0f1983eba06f3d6d8bf9e9cff5fc1e2e4d0ccc44522fa5082b9f3546b0f4b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "13b0f1983eba06f3d6d8bf9e9cff5fc1e2e4d0ccc44522fa5082b9f3546b0f4b", kill_on_drop: false }`
[INFO] [stdout] 13b0f1983eba06f3d6d8bf9e9cff5fc1e2e4d0ccc44522fa5082b9f3546b0f4b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 83ee79ef22021a32d46712465da7444688cd2faa295ffa665db165bcd974aca2
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "83ee79ef22021a32d46712465da7444688cd2faa295ffa665db165bcd974aca2", kill_on_drop: false }`
[INFO] [stderr] Copying to /tmp/fixit
[INFO] [stderr] Running `cargo fix --edition`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] note: Switching to Edition 2021 will enable the use of the version 2 feature resolver in Cargo.
[INFO] [stderr] This may cause some dependencies to be built with fewer features enabled than previously.
[INFO] [stderr] More information about the resolver changes may be found at https://doc.rust-lang.org/nightly/edition-guide/rust-2021/default-cargo-resolver.html
[INFO] [stderr] When building the following dependencies, the given features will no longer be used:
[INFO] [stderr] 
[INFO] [stderr]   num-traits v0.2.14: default
[INFO] [stderr]   syn v1.0.71 (as host dependency): extra-traits, full, visit
[INFO] [stderr] 
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling libc v0.2.94
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.26
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]     Checking smallvec v1.6.1
[INFO] [stderr]    Compiling syn v1.0.71
[INFO] [stderr]    Compiling pkg-config v0.3.19
[INFO] [stderr]     Checking futures-core v0.3.14
[INFO] [stderr]     Checking hashbrown v0.9.1
[INFO] [stderr]    Compiling cpal v0.13.3
[INFO] [stderr]     Checking unicode-segmentation v1.7.1
[INFO] [stderr]     Checking fixedbitset v0.2.0
[INFO] [stderr]     Checking cassowary v0.3.0
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]     Checking instant v0.1.9
[INFO] [stderr]     Checking lock_api v0.4.4
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling crossbeam-utils v0.8.4
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling memoffset v0.6.3
[INFO] [stderr]    Compiling num-bigint v0.4.0
[INFO] [stderr]    Compiling num-rational v0.4.0
[INFO] [stderr]    Compiling indexmap v1.6.2
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling alsa-sys v0.3.1
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking petgraph v0.5.1
[INFO] [stderr]     Checking crossbeam-epoch v0.9.4
[INFO] [stderr]     Checking crossbeam-queue v0.3.1
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[INFO] [stderr]     Checking signal-hook-registry v1.3.0
[INFO] [stderr]     Checking mio v0.7.11
[INFO] [stderr]     Checking nix v0.20.0
[INFO] [stderr]     Checking parking_lot v0.11.1
[INFO] [stderr]     Checking signal-hook v0.1.17
[INFO] [stderr]     Checking crossterm v0.19.0
[INFO] [stderr]     Checking tui v0.15.0
[INFO] [stderr]     Checking num v0.4.0
[INFO] [stderr]     Checking alsa v0.5.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.24
[INFO] [stderr]     Checking thiserror v1.0.24
[INFO] [stderr]     Checking rsynth v0.1.0 (/tmp/fixit)
[INFO] [stderr]    Migrating src/main.rs from 2018 edition to 2021
[INFO] [stderr]        Fixed src/ui/mod.rs (4 fixes)
[INFO] [stderr]        Fixed src/chain.rs (1 fix)
[INFO] [stderr]        Fixed src/audio.rs (1 fix)
[INFO] [stderr]        Fixed src/voices.rs (4 fixes)
[INFO] [stderr]        Fixed src/combinators.rs (1 fix)
[INFO] [stderr]        Fixed src/ui/input.rs (2 fixes)
[INFO] [stderr]        Fixed src/config.rs (1 fix)
[INFO] [stderr]        Fixed src/controllers.rs (2 fixes)
[INFO] [stderr]        Fixed src/synth.rs (2 fixes)
[INFO] [stderr]        Fixed src/effects.rs (2 fixes)
[INFO] [stderr]        Fixed src/ui/components.rs (5 fixes)
[INFO] [stderr]        Fixed src/main.rs (10 fixes)
[INFO] [stderr]        Fixed src/ui/model.rs (4 fixes)
[INFO] [stdout] warning: unused import: `traits::StreamTrait`
[INFO] [stdout]  --> src/main.rs:9:12
[INFO] [stdout]   |
[INFO] [stdout] 9 | use cpal::{traits::StreamTrait};
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `HasFreq`
[INFO] [stdout]  --> src/controllers.rs:6:14
[INFO] [stdout]   |
[INFO] [stdout] 6 |     voices::{HasFreq, Waveform},
[INFO] [stdout]   |              ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Widget`
[INFO] [stdout]   --> src/ui/mod.rs:14:15
[INFO] [stdout]    |
[INFO] [stdout] 14 |     widgets::{Widget},
[INFO] [stdout]    |               ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `traits::StreamTrait`
[INFO] [stdout]  --> src/main.rs:9:12
[INFO] [stdout]   |
[INFO] [stdout] 9 | use cpal::{traits::StreamTrait};
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `HasFreq`
[INFO] [stdout]  --> src/controllers.rs:6:14
[INFO] [stdout]   |
[INFO] [stdout] 6 |     voices::{HasFreq, Waveform},
[INFO] [stdout]   |              ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Widget`
[INFO] [stdout]   --> src/ui/mod.rs:14:15
[INFO] [stdout]    |
[INFO] [stdout] 14 |     widgets::{Widget},
[INFO] [stdout]    |               ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/chain.rs:16:12
[INFO] [stdout]    |
[INFO] [stdout] 16 |     pub fn new() -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `add`
[INFO] [stdout]   --> src/chain.rs:20:12
[INFO] [stdout]    |
[INFO] [stdout] 20 |     pub fn add(&mut self, effect: Box<dyn Effect<Signal> + Send + 'static>) {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `validate_two_channel_config`
[INFO] [stdout]   --> src/combinators.rs:20:4
[INFO] [stdout]    |
[INFO] [stdout] 20 | fn validate_two_channel_config(config: &TwoChannelConfig) -> bool {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/combinators.rs:35:12
[INFO] [stdout]    |
[INFO] [stdout] 35 |     pub fn new(a: Va, b: Vb) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Change`
[INFO] [stdout]    --> src/combinators.rs:131:5
[INFO] [stdout]     |
[INFO] [stdout] 131 |     Change { channel: usize, volume_change: f32 },
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new_validated`
[INFO] [stdout]   --> src/config.rs:92:12
[INFO] [stdout]    |
[INFO] [stdout] 92 |     pub fn new_validated<V: Fn(&C) -> bool + 'static + Send>(default: C, validator: V) -> Self {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Stop`
[INFO] [stdout]   --> src/controllers.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     Stop,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `ChangeBase`
[INFO] [stdout]   --> src/controllers.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 |     ChangeBase(f32),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `LowPassFilter`
[INFO] [stdout]   --> src/effects.rs:16:12
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub struct LowPassFilter<Signal> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/effects.rs:23:12
[INFO] [stdout]    |
[INFO] [stdout] 23 |     pub fn new(hz: f32) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `delta`
[INFO] [stdout]   --> src/effects.rs:31:12
[INFO] [stdout]    |
[INFO] [stdout] 31 |     pub fn delta(&mut self) -> Duration {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `location`
[INFO] [stdout]   --> src/ui/model.rs:35:5
[INFO] [stdout]    |
[INFO] [stdout] 35 |     location: UILocation,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `selected`
[INFO] [stdout]   --> src/ui/model.rs:39:5
[INFO] [stdout]    |
[INFO] [stdout] 39 |     selected: usize,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `focused`
[INFO] [stdout]   --> src/ui/model.rs:40:5
[INFO] [stdout]    |
[INFO] [stdout] 40 |     focused: Option<usize>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `at_root`
[INFO] [stdout]   --> src/ui/model.rs:51:8
[INFO] [stdout]    |
[INFO] [stdout] 51 |     fn at_root(&self) -> bool {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `right`
[INFO] [stdout]   --> src/ui/model.rs:54:8
[INFO] [stdout]    |
[INFO] [stdout] 54 |     fn right(&mut self) {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `left`
[INFO] [stdout]   --> src/ui/model.rs:57:8
[INFO] [stdout]    |
[INFO] [stdout] 57 |     fn left(&mut self) {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `enter`
[INFO] [stdout]   --> src/ui/model.rs:60:8
[INFO] [stdout]    |
[INFO] [stdout] 60 |     fn enter(&mut self) {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `up`
[INFO] [stdout]   --> src/ui/model.rs:63:8
[INFO] [stdout]    |
[INFO] [stdout] 63 |     fn up(&mut self) {
[INFO] [stdout]    |        ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/voices.rs:99:12
[INFO] [stdout]    |
[INFO] [stdout] 99 |     pub fn new(voice: V, effect: E) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 23 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/chain.rs:16:12
[INFO] [stdout]    |
[INFO] [stdout] 16 |     pub fn new() -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `add`
[INFO] [stdout]   --> src/chain.rs:20:12
[INFO] [stdout]    |
[INFO] [stdout] 20 |     pub fn add(&mut self, effect: Box<dyn Effect<Signal> + Send + 'static>) {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `validate_two_channel_config`
[INFO] [stdout]   --> src/combinators.rs:20:4
[INFO] [stdout]    |
[INFO] [stdout] 20 | fn validate_two_channel_config(config: &TwoChannelConfig) -> bool {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/combinators.rs:35:12
[INFO] [stdout]    |
[INFO] [stdout] 35 |     pub fn new(a: Va, b: Vb) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Change`
[INFO] [stdout]    --> src/combinators.rs:131:5
[INFO] [stdout]     |
[INFO] [stdout] 131 |     Change { channel: usize, volume_change: f32 },
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new_validated`
[INFO] [stdout]   --> src/config.rs:92:12
[INFO] [stdout]    |
[INFO] [stdout] 92 |     pub fn new_validated<V: Fn(&C) -> bool + 'static + Send>(default: C, validator: V) -> Self {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Stop`
[INFO] [stdout]   --> src/controllers.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     Stop,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `ChangeBase`
[INFO] [stdout]   --> src/controllers.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 |     ChangeBase(f32),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `LowPassFilter`
[INFO] [stdout]   --> src/effects.rs:16:12
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub struct LowPassFilter<Signal> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/effects.rs:23:12
[INFO] [stdout]    |
[INFO] [stdout] 23 |     pub fn new(hz: f32) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `delta`
[INFO] [stdout]   --> src/effects.rs:31:12
[INFO] [stdout]    |
[INFO] [stdout] 31 |     pub fn delta(&mut self) -> Duration {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `location`
[INFO] [stdout]   --> src/ui/model.rs:35:5
[INFO] [stdout]    |
[INFO] [stdout] 35 |     location: UILocation,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `selected`
[INFO] [stdout]   --> src/ui/model.rs:39:5
[INFO] [stdout]    |
[INFO] [stdout] 39 |     selected: usize,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `focused`
[INFO] [stdout]   --> src/ui/model.rs:40:5
[INFO] [stdout]    |
[INFO] [stdout] 40 |     focused: Option<usize>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `at_root`
[INFO] [stdout]   --> src/ui/model.rs:51:8
[INFO] [stdout]    |
[INFO] [stdout] 51 |     fn at_root(&self) -> bool {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `right`
[INFO] [stdout]   --> src/ui/model.rs:54:8
[INFO] [stdout]    |
[INFO] [stdout] 54 |     fn right(&mut self) {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `left`
[INFO] [stdout]   --> src/ui/model.rs:57:8
[INFO] [stdout]    |
[INFO] [stdout] 57 |     fn left(&mut self) {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `enter`
[INFO] [stdout]   --> src/ui/model.rs:60:8
[INFO] [stdout]    |
[INFO] [stdout] 60 |     fn enter(&mut self) {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `up`
[INFO] [stdout]   --> src/ui/model.rs:63:8
[INFO] [stdout]    |
[INFO] [stdout] 63 |     fn up(&mut self) {
[INFO] [stdout]    |        ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/voices.rs:99:12
[INFO] [stdout]    |
[INFO] [stdout] 99 |     pub fn new(voice: V, effect: E) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 23 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 27.09s
[INFO] [stderr] Running `cargo check` to verify 2021
[INFO] [stderr]    Compiling syn v1.0.71
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]     Checking num-integer v0.1.44
[INFO] [stderr]     Checking num-complex v0.4.0
[INFO] [stderr]     Checking num-bigint v0.4.0
[INFO] [stderr]     Checking num-iter v0.1.42
[INFO] [stderr]     Checking num-rational v0.4.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.24
[INFO] [stderr]     Checking num v0.4.0
[INFO] [stderr]     Checking thiserror v1.0.24
[INFO] [stderr]     Checking cpal v0.13.3
[INFO] [stderr]     Checking rsynth v0.1.0 (/tmp/fixit)
[INFO] [stdout] warning: unused import: `traits::StreamTrait`
[INFO] [stdout]  --> src/main.rs:9:12
[INFO] [stdout]   |
[INFO] [stdout] 9 | use cpal::{traits::StreamTrait};
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `HasFreq`
[INFO] [stdout]  --> src/controllers.rs:6:14
[INFO] [stdout]   |
[INFO] [stdout] 6 |     voices::{HasFreq, Waveform},
[INFO] [stdout]   |              ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Widget`
[INFO] [stdout]   --> src/ui/mod.rs:14:15
[INFO] [stdout]    |
[INFO] [stdout] 14 |     widgets::{Widget},
[INFO] [stdout]    |               ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `traits::StreamTrait`
[INFO] [stdout]  --> src/main.rs:9:12
[INFO] [stdout]   |
[INFO] [stdout] 9 | use cpal::{traits::StreamTrait};
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `HasFreq`
[INFO] [stdout]  --> src/controllers.rs:6:14
[INFO] [stdout]   |
[INFO] [stdout] 6 |     voices::{HasFreq, Waveform},
[INFO] [stdout]   |              ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Widget`
[INFO] [stdout]   --> src/ui/mod.rs:14:15
[INFO] [stdout]    |
[INFO] [stdout] 14 |     widgets::{Widget},
[INFO] [stdout]    |               ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/chain.rs:16:12
[INFO] [stdout]    |
[INFO] [stdout] 16 |     pub fn new() -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `add`
[INFO] [stdout]   --> src/chain.rs:20:12
[INFO] [stdout]    |
[INFO] [stdout] 20 |     pub fn add(&mut self, effect: Box<dyn Effect<Signal> + Send + 'static>) {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `validate_two_channel_config`
[INFO] [stdout]   --> src/combinators.rs:20:4
[INFO] [stdout]    |
[INFO] [stdout] 20 | fn validate_two_channel_config(config: &TwoChannelConfig) -> bool {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/combinators.rs:35:12
[INFO] [stdout]    |
[INFO] [stdout] 35 |     pub fn new(a: Va, b: Vb) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/chain.rs:16:12
[INFO] [stdout]    |
[INFO] [stdout] 16 |     pub fn new() -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `add`
[INFO] [stdout]   --> src/chain.rs:20:12
[INFO] [stdout]    |
[INFO] [stdout] 20 |     pub fn add(&mut self, effect: Box<dyn Effect<Signal> + Send + 'static>) {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `validate_two_channel_config`
[INFO] [stdout]   --> src/combinators.rs:20:4
[INFO] [stdout]    |
[INFO] [stdout] 20 | fn validate_two_channel_config(config: &TwoChannelConfig) -> bool {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/combinators.rs:35:12
[INFO] [stdout]    |
[INFO] [stdout] 35 |     pub fn new(a: Va, b: Vb) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Change`
[INFO] [stdout]    --> src/combinators.rs:131:5
[INFO] [stdout]     |
[INFO] [stdout] 131 |     Change { channel: usize, volume_change: f32 },
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new_validated`
[INFO] [stdout]   --> src/config.rs:92:12
[INFO] [stdout]    |
[INFO] [stdout] 92 |     pub fn new_validated<V: Fn(&C) -> bool + 'static + Send>(default: C, validator: V) -> Self {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Stop`
[INFO] [stdout]   --> src/controllers.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     Stop,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `ChangeBase`
[INFO] [stdout]   --> src/controllers.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 |     ChangeBase(f32),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Change`
[INFO] [stdout]    --> src/combinators.rs:131:5
[INFO] [stdout]     |
[INFO] [stdout] 131 |     Change { channel: usize, volume_change: f32 },
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `LowPassFilter`
[INFO] [stdout]   --> src/effects.rs:16:12
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub struct LowPassFilter<Signal> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/effects.rs:23:12
[INFO] [stdout]    |
[INFO] [stdout] 23 |     pub fn new(hz: f32) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `delta`
[INFO] [stdout]   --> src/effects.rs:31:12
[INFO] [stdout]    |
[INFO] [stdout] 31 |     pub fn delta(&mut self) -> Duration {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new_validated`
[INFO] [stdout]   --> src/config.rs:92:12
[INFO] [stdout]    |
[INFO] [stdout] 92 |     pub fn new_validated<V: Fn(&C) -> bool + 'static + Send>(default: C, validator: V) -> Self {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `location`
[INFO] [stdout]   --> src/ui/model.rs:35:5
[INFO] [stdout]    |
[INFO] [stdout] 35 |     location: UILocation,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Stop`
[INFO] [stdout]   --> src/controllers.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     Stop,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `ChangeBase`
[INFO] [stdout]   --> src/controllers.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 |     ChangeBase(f32),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `LowPassFilter`
[INFO] [stdout]   --> src/effects.rs:16:12
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub struct LowPassFilter<Signal> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/effects.rs:23:12
[INFO] [stdout]    |
[INFO] [stdout] 23 |     pub fn new(hz: f32) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `selected`
[INFO] [stdout]   --> src/ui/model.rs:39:5
[INFO] [stdout]    |
[INFO] [stdout] 39 |     selected: usize,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `delta`
[INFO] [stdout]   --> src/effects.rs:31:12
[INFO] [stdout]    |
[INFO] [stdout] 31 |     pub fn delta(&mut self) -> Duration {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `focused`
[INFO] [stdout]   --> src/ui/model.rs:40:5
[INFO] [stdout]    |
[INFO] [stdout] 40 |     focused: Option<usize>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `at_root`
[INFO] [stdout]   --> src/ui/model.rs:51:8
[INFO] [stdout]    |
[INFO] [stdout] 51 |     fn at_root(&self) -> bool {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `right`
[INFO] [stdout]   --> src/ui/model.rs:54:8
[INFO] [stdout]    |
[INFO] [stdout] 54 |     fn right(&mut self) {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `left`
[INFO] [stdout]   --> src/ui/model.rs:57:8
[INFO] [stdout]    |
[INFO] [stdout] 57 |     fn left(&mut self) {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `enter`
[INFO] [stdout]   --> src/ui/model.rs:60:8
[INFO] [stdout]    |
[INFO] [stdout] 60 |     fn enter(&mut self) {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `up`
[INFO] [stdout]   --> src/ui/model.rs:63:8
[INFO] [stdout]    |
[INFO] [stdout] 63 |     fn up(&mut self) {
[INFO] [stdout]    |        ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/voices.rs:99:12
[INFO] [stdout]    |
[INFO] [stdout] 99 |     pub fn new(voice: V, effect: E) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `location`
[INFO] [stdout]   --> src/ui/model.rs:35:5
[INFO] [stdout]    |
[INFO] [stdout] 35 |     location: UILocation,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `selected`
[INFO] [stdout]   --> src/ui/model.rs:39:5
[INFO] [stdout]    |
[INFO] [stdout] 39 |     selected: usize,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `focused`
[INFO] [stdout]   --> src/ui/model.rs:40:5
[INFO] [stdout]    |
[INFO] [stdout] 40 |     focused: Option<usize>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `at_root`
[INFO] [stdout]   --> src/ui/model.rs:51:8
[INFO] [stdout]    |
[INFO] [stdout] 51 |     fn at_root(&self) -> bool {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `right`
[INFO] [stdout]   --> src/ui/model.rs:54:8
[INFO] [stdout]    |
[INFO] [stdout] 54 |     fn right(&mut self) {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `left`
[INFO] [stdout]   --> src/ui/model.rs:57:8
[INFO] [stdout]    |
[INFO] [stdout] 57 |     fn left(&mut self) {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `enter`
[INFO] [stdout]   --> src/ui/model.rs:60:8
[INFO] [stdout]    |
[INFO] [stdout] 60 |     fn enter(&mut self) {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `up`
[INFO] [stdout]   --> src/ui/model.rs:63:8
[INFO] [stdout]    |
[INFO] [stdout] 63 |     fn up(&mut self) {
[INFO] [stdout]    |        ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/voices.rs:99:12
[INFO] [stdout]    |
[INFO] [stdout] 99 |     pub fn new(voice: V, effect: E) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 23 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 23 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 11.08s
[INFO] running `Command { std: "docker" "inspect" "83ee79ef22021a32d46712465da7444688cd2faa295ffa665db165bcd974aca2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "83ee79ef22021a32d46712465da7444688cd2faa295ffa665db165bcd974aca2", kill_on_drop: false }`
[INFO] [stdout] 83ee79ef22021a32d46712465da7444688cd2faa295ffa665db165bcd974aca2