[INFO] cloning repository https://github.com/ErikNatanael/rust_synthesis_profiling
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ErikNatanael/rust_synthesis_profiling" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FErikNatanael%2Frust_synthesis_profiling", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FErikNatanael%2Frust_synthesis_profiling'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a5a5bbecbd7db32eaa7c2461c6dc95d5cc2f7d0e
[INFO] checking ErikNatanael/rust_synthesis_profiling against beta-2020-07-24 for pr-75494-beta
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FErikNatanael%2Frust_synthesis_profiling" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ErikNatanael/rust_synthesis_profiling on toolchain beta-2020-07-24
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ErikNatanael/rust_synthesis_profiling
[INFO] finished tweaking git repo https://github.com/ErikNatanael/rust_synthesis_profiling
[INFO] tweaked toml for git repo https://github.com/ErikNatanael/rust_synthesis_profiling written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/ErikNatanael/rust_synthesis_profiling already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ffe685d862217c007343c581b39b02f803a04dee71a6755877a81e9a2439a14c
[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" "ffe685d862217c007343c581b39b02f803a04dee71a6755877a81e9a2439a14c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ffe685d862217c007343c581b39b02f803a04dee71a6755877a81e9a2439a14c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ffe685d862217c007343c581b39b02f803a04dee71a6755877a81e9a2439a14c", kill_on_drop: false }`
[INFO] [stdout] ffe685d862217c007343c581b39b02f803a04dee71a6755877a81e9a2439a14c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 060d5e1659ba7dc98b5fca80933f5019c06ebc9aebde61acb5650db77dcceb8c
[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" "060d5e1659ba7dc98b5fca80933f5019c06ebc9aebde61acb5650db77dcceb8c", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.73
[INFO] [stderr]     Checking dasp_sample v0.11.0
[INFO] [stderr]     Checking rustc-serialize v0.3.24
[INFO] [stderr]    Compiling pkg-config v0.3.18
[INFO] [stderr]     Checking ppv-lite86 v0.2.8
[INFO] [stderr]     Checking dasp_ring_buffer v0.11.0
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]    Compiling libloading v0.6.2
[INFO] [stderr]     Checking memalloc v0.1.0
[INFO] [stderr]     Checking bitflags v0.3.3
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]    Compiling memoffset v0.5.5
[INFO] [stderr]    Compiling num-iter v0.1.41
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
[INFO] [stderr]    Compiling num-bigint v0.2.6
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]    Compiling num-rational v0.2.4
[INFO] [stderr]     Checking crossbeam-channel v0.4.3
[INFO] [stderr]     Checking crossbeam-queue v0.2.3
[INFO] [stderr]     Checking dasp_frame v0.11.0
[INFO] [stderr]     Checking dasp_window v0.11.0
[INFO] [stderr]    Compiling alsa-sys v0.1.2
[INFO] [stderr]     Checking crossbeam-deque v0.7.3
[INFO] [stderr]     Checking crossbeam v0.7.3
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking getrandom v0.1.14
[INFO] [stderr]     Checking nix v0.9.0
[INFO] [stderr]     Checking jack-sys v0.2.0 (https://github.com/RustAudio/rust-jack.git#41fab12b)
[INFO] [stderr]     Checking approx v0.3.2
[INFO] [stderr]     Checking jack v0.6.2 (https://github.com/RustAudio/rust-jack.git#41fab12b)
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking dasp_rms v0.11.0
[INFO] [stderr]     Checking dasp_peak v0.11.0
[INFO] [stderr]     Checking dasp_interpolate v0.11.0
[INFO] [stderr]     Checking dasp_slice v0.11.0
[INFO] [stderr]     Checking dasp_envelope v0.11.0
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking dasp_signal v0.11.0
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking rand v0.3.23
[INFO] [stderr]     Checking libmath v0.2.1
[INFO] [stderr]     Checking dasp v0.11.0
[INFO] [stderr]     Checking num-bigint v0.1.44
[INFO] [stderr]     Checking num-complex v0.1.43
[INFO] [stderr]     Checking rand_distr v0.2.2
[INFO] [stderr]     Checking uuid v0.8.1
[INFO] [stderr]     Checking num-rational v0.1.42
[INFO] [stderr]     Checking num v0.1.42
[INFO] [stderr]     Checking num v0.2.1
[INFO] [stderr]     Checking pitch_calc v0.12.0
[INFO] [stderr]     Checking alsa v0.2.2
[INFO] [stderr]     Checking midir v0.5.0
[INFO] [stderr]     Checking oscen v0.1.4
[INFO] [stderr]     Checking synthesis_profiling v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::rc::Rc`
[INFO] [stdout]  --> src/dasp_synth.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::rc::Rc;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::f64::consts::PI`
[INFO] [stdout]  --> src/dasp_synth.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::f64::consts::PI;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `oscen::filters::Lpf`
[INFO] [stdout]  --> src/oscen_synth.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use oscen::filters::Lpf;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `oscen::operators::Modulator`
[INFO] [stdout]  --> src/oscen_synth.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use oscen::operators::Modulator;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `SquareOsc`
[INFO] [stdout]  --> src/oscen_synth.rs:3:35
[INFO] [stdout]   |
[INFO] [stdout] 3 | use oscen::oscillators::{SineOsc, SquareOsc};
[INFO] [stdout]   |                                   ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::rc::Rc`
[INFO] [stdout]  --> src/owned_wavetable_synth.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::rc::Rc;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::rc::Rc`
[INFO] [stdout]  --> src/dasp_synth.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::rc::Rc;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::f64::consts::PI`
[INFO] [stdout]  --> src/dasp_synth.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::f64::consts::PI;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `oscen::filters::Lpf`
[INFO] [stdout]  --> src/oscen_synth.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use oscen::filters::Lpf;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `oscen::operators::Modulator`
[INFO] [stdout]  --> src/oscen_synth.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use oscen::operators::Modulator;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `SquareOsc`
[INFO] [stdout]  --> src/oscen_synth.rs:3:35
[INFO] [stdout]   |
[INFO] [stdout] 3 | use oscen::oscillators::{SineOsc, SquareOsc};
[INFO] [stdout]   |                                   ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::rc::Rc`
[INFO] [stdout]  --> src/owned_wavetable_synth.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::rc::Rc;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `temp`
[INFO] [stdout]   --> src/main.rs:51:9
[INFO] [stdout]    |
[INFO] [stdout] 51 |     let mut temp = 0.0;
[INFO] [stdout]    |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_temp`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/shared_wavetable_synth.rs:155:13
[INFO] [stdout]     |
[INFO] [stdout] 155 |         for i in 0..100 {
[INFO] [stdout]     |             ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `old_wavetable`
[INFO] [stdout]    --> src/shared_wavetable_synth.rs:170:13
[INFO] [stdout]     |
[INFO] [stdout] 170 |         let old_wavetable = self.wavetables[self.next_free_index].replace(wavetable);
[INFO] [stdout]     |             ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_old_wavetable`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]    --> src/shared_wavetable_synth.rs:191:13
[INFO] [stdout]     |
[INFO] [stdout] 191 |         for n in 0..num_oscillators {
[INFO] [stdout]     |             ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]   --> src/dasp_synth.rs:19:13
[INFO] [stdout]    |
[INFO] [stdout] 19 |         for n in 1..num_oscillators {
[INFO] [stdout]    |             ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/oscen_synth.rs:21:13
[INFO] [stdout]    |
[INFO] [stdout] 21 |         for i in 0..num_oscillators {
[INFO] [stdout]    |             ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sine`
[INFO] [stdout]   --> src/oscen_synth.rs:22:17
[INFO] [stdout]    |
[INFO] [stdout] 22 |             let sine = SineOsc::new().amplitude(amp).hz(200).rack(&mut rack);
[INFO] [stdout]    |                 ^^^^ help: if this is intentional, prefix it with an underscore: `_sine`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]    --> src/owned_wavetable_synth.rs:136:13
[INFO] [stdout]     |
[INFO] [stdout] 136 |         for n in 1..num_oscillators {
[INFO] [stdout]     |             ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `temp`
[INFO] [stdout]   --> src/main.rs:51:9
[INFO] [stdout]    |
[INFO] [stdout] 51 |     let mut temp = 0.0;
[INFO] [stdout]    |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_temp`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/shared_wavetable_synth.rs:155:13
[INFO] [stdout]     |
[INFO] [stdout] 155 |         for i in 0..100 {
[INFO] [stdout]     |             ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `old_wavetable`
[INFO] [stdout]    --> src/shared_wavetable_synth.rs:170:13
[INFO] [stdout]     |
[INFO] [stdout] 170 |         let old_wavetable = self.wavetables[self.next_free_index].replace(wavetable);
[INFO] [stdout]     |             ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_old_wavetable`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]    --> src/shared_wavetable_synth.rs:191:13
[INFO] [stdout]     |
[INFO] [stdout] 191 |         for n in 0..num_oscillators {
[INFO] [stdout]     |             ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]   --> src/dasp_synth.rs:19:13
[INFO] [stdout]    |
[INFO] [stdout] 19 |         for n in 1..num_oscillators {
[INFO] [stdout]    |             ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/oscen_synth.rs:21:13
[INFO] [stdout]    |
[INFO] [stdout] 21 |         for i in 0..num_oscillators {
[INFO] [stdout]    |             ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sine`
[INFO] [stdout]   --> src/oscen_synth.rs:22:17
[INFO] [stdout]    |
[INFO] [stdout] 22 |             let sine = SineOsc::new().amplitude(amp).hz(200).rack(&mut rack);
[INFO] [stdout]    |                 ^^^^ help: if this is intentional, prefix it with an underscore: `_sine`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]    --> src/owned_wavetable_synth.rs:136:13
[INFO] [stdout]     |
[INFO] [stdout] 136 |         for n in 1..num_oscillators {
[INFO] [stdout]     |             ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:51:9
[INFO] [stdout]    |
[INFO] [stdout] 51 |     let mut temp = 0.0;
[INFO] [stdout]    |         ----^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:51:9
[INFO] [stdout]    |
[INFO] [stdout] 51 |     let mut temp = 0.0;
[INFO] [stdout]    |         ----^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_linear_interp`
[INFO] [stdout]   --> src/shared_wavetable_synth.rs:47:8
[INFO] [stdout]    |
[INFO] [stdout] 47 |     fn get_linear_interp(&self, phase: Sample) -> Sample {
[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: `new`
[INFO] [stdout]   --> src/shared_wavetable_synth.rs:72:8
[INFO] [stdout]    |
[INFO] [stdout] 72 |     fn new() -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `from_freq`
[INFO] [stdout]   --> src/shared_wavetable_synth.rs:78:8
[INFO] [stdout]    |
[INFO] [stdout] 78 |     fn from_freq(freq: Sample, sample_rate: Sample) -> Self {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `set_freq`
[INFO] [stdout]   --> src/shared_wavetable_synth.rs:83:8
[INFO] [stdout]    |
[INFO] [stdout] 83 |     fn set_freq(&mut self, freq: Sample, sample_rate: Sample) {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]    --> src/shared_wavetable_synth.rs:113:12
[INFO] [stdout]     |
[INFO] [stdout] 113 |     pub fn new(wavetable: WavetableIndex) -> Self {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `freed_indexes`
[INFO] [stdout]    --> src/shared_wavetable_synth.rs:149:5
[INFO] [stdout]     |
[INFO] [stdout] 149 |     freed_indexes: Vec<WavetableIndex>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias is never used: `Sample`
[INFO] [stdout]  --> src/dasp_synth.rs:7:1
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub type Sample = f64;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `SynthesisEngine`
[INFO] [stdout]  --> src/dasp_synth.rs:9:12
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub struct SynthesisEngine {
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/dasp_synth.rs:14:12
[INFO] [stdout]    |
[INFO] [stdout] 14 |     pub fn new(sample_rate: f64) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `next`
[INFO] [stdout]   --> src/dasp_synth.rs:31:12
[INFO] [stdout]    |
[INFO] [stdout] 31 |     pub fn next(&mut self) -> Sample {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_linear_interp`
[INFO] [stdout]   --> src/shared_wavetable_synth.rs:47:8
[INFO] [stdout]    |
[INFO] [stdout] 47 |     fn get_linear_interp(&self, phase: Sample) -> Sample {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias is never used: `Sample`
[INFO] [stdout]  --> src/oscen_synth.rs:6:1
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub type Sample = f64;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/shared_wavetable_synth.rs:72:8
[INFO] [stdout]    |
[INFO] [stdout] 72 |     fn new() -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `SynthesisEngine`
[INFO] [stdout]  --> src/oscen_synth.rs:8:12
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub struct SynthesisEngine {
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/oscen_synth.rs:14:12
[INFO] [stdout]    |
[INFO] [stdout] 14 |     pub fn new(sample_rate: f64) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `next`
[INFO] [stdout]   --> src/oscen_synth.rs:30:12
[INFO] [stdout]    |
[INFO] [stdout] 30 |     pub fn next(&mut self) -> f64 {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/owned_wavetable_synth.rs:20:8
[INFO] [stdout]    |
[INFO] [stdout] 20 |     fn new(wavetable_size: usize) -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `sine`
[INFO] [stdout]   --> src/owned_wavetable_synth.rs:33:12
[INFO] [stdout]    |
[INFO] [stdout] 33 |     pub fn sine(wavetable_size: usize) -> Self {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `from_freq`
[INFO] [stdout]   --> src/shared_wavetable_synth.rs:78:8
[INFO] [stdout]    |
[INFO] [stdout] 78 |     fn from_freq(freq: Sample, sample_rate: Sample) -> Self {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `is_power_of_2`
[INFO] [stdout]   --> src/owned_wavetable_synth.rs:52:4
[INFO] [stdout]    |
[INFO] [stdout] 52 | fn is_power_of_2(num: usize) -> bool {
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `set_freq`
[INFO] [stdout]   --> src/shared_wavetable_synth.rs:83:8
[INFO] [stdout]    |
[INFO] [stdout] 83 |     fn set_freq(&mut self, freq: Sample, sample_rate: Sample) {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/owned_wavetable_synth.rs:62:8
[INFO] [stdout]    |
[INFO] [stdout] 62 |     fn new() -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `from_freq`
[INFO] [stdout]   --> src/owned_wavetable_synth.rs:68:8
[INFO] [stdout]    |
[INFO] [stdout] 68 |     fn from_freq(freq: f64, sample_rate: f64) -> Self {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]    --> src/shared_wavetable_synth.rs:113:12
[INFO] [stdout]     |
[INFO] [stdout] 113 |     pub fn new(wavetable: WavetableIndex) -> Self {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `set_freq`
[INFO] [stdout]   --> src/owned_wavetable_synth.rs:73:8
[INFO] [stdout]    |
[INFO] [stdout] 73 |     fn set_freq(&mut self, freq: f64, sample_rate: f64) {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `freed_indexes`
[INFO] [stdout]    --> src/shared_wavetable_synth.rs:149:5
[INFO] [stdout]     |
[INFO] [stdout] 149 |     freed_indexes: Vec<WavetableIndex>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]    --> src/owned_wavetable_synth.rs:102:12
[INFO] [stdout]     |
[INFO] [stdout] 102 |     pub fn new(wavetable: Wavetable) -> Self {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `from_freq`
[INFO] [stdout]    --> src/owned_wavetable_synth.rs:108:12
[INFO] [stdout]     |
[INFO] [stdout] 108 |     pub fn from_freq(freq: f64, sample_rate: f64, wavetable: Wavetable) -> Self {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias is never used: `Sample`
[INFO] [stdout]  --> src/dasp_synth.rs:7:1
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub type Sample = f64;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `SynthesisEngine`
[INFO] [stdout]    --> src/owned_wavetable_synth.rs:126:12
[INFO] [stdout]     |
[INFO] [stdout] 126 | pub struct SynthesisEngine {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `SynthesisEngine`
[INFO] [stdout]  --> src/dasp_synth.rs:9:12
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub struct SynthesisEngine {
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]    --> src/owned_wavetable_synth.rs:131:12
[INFO] [stdout]     |
[INFO] [stdout] 131 |     pub fn new(sample_rate: f64) -> Self {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `next`
[INFO] [stdout]    --> src/owned_wavetable_synth.rs:149:12
[INFO] [stdout]     |
[INFO] [stdout] 149 |     pub fn next(&mut self) -> Sample {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/dasp_synth.rs:14:12
[INFO] [stdout]    |
[INFO] [stdout] 14 |     pub fn new(sample_rate: f64) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `next`
[INFO] [stdout]   --> src/dasp_synth.rs:31:12
[INFO] [stdout]    |
[INFO] [stdout] 31 |     pub fn next(&mut self) -> Sample {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias is never used: `Sample`
[INFO] [stdout]  --> src/oscen_synth.rs:6:1
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub type Sample = f64;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `SynthesisEngine`
[INFO] [stdout]  --> src/oscen_synth.rs:8:12
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub struct SynthesisEngine {
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/oscen_synth.rs:14:12
[INFO] [stdout]    |
[INFO] [stdout] 14 |     pub fn new(sample_rate: f64) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `next`
[INFO] [stdout]   --> src/oscen_synth.rs:30:12
[INFO] [stdout]    |
[INFO] [stdout] 30 |     pub fn next(&mut self) -> f64 {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/owned_wavetable_synth.rs:20:8
[INFO] [stdout]    |
[INFO] [stdout] 20 |     fn new(wavetable_size: usize) -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `sine`
[INFO] [stdout]   --> src/owned_wavetable_synth.rs:33:12
[INFO] [stdout]    |
[INFO] [stdout] 33 |     pub fn sine(wavetable_size: usize) -> Self {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `is_power_of_2`
[INFO] [stdout]   --> src/owned_wavetable_synth.rs:52:4
[INFO] [stdout]    |
[INFO] [stdout] 52 | fn is_power_of_2(num: usize) -> bool {
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/owned_wavetable_synth.rs:62:8
[INFO] [stdout]    |
[INFO] [stdout] 62 |     fn new() -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `from_freq`
[INFO] [stdout]   --> src/owned_wavetable_synth.rs:68:8
[INFO] [stdout]    |
[INFO] [stdout] 68 |     fn from_freq(freq: f64, sample_rate: f64) -> Self {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `set_freq`
[INFO] [stdout]   --> src/owned_wavetable_synth.rs:73:8
[INFO] [stdout]    |
[INFO] [stdout] 73 |     fn set_freq(&mut self, freq: f64, sample_rate: f64) {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]    --> src/owned_wavetable_synth.rs:102:12
[INFO] [stdout]     |
[INFO] [stdout] 102 |     pub fn new(wavetable: Wavetable) -> Self {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `from_freq`
[INFO] [stdout]    --> src/owned_wavetable_synth.rs:108:12
[INFO] [stdout]     |
[INFO] [stdout] 108 |     pub fn from_freq(freq: f64, sample_rate: f64, wavetable: Wavetable) -> Self {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `SynthesisEngine`
[INFO] [stdout]    --> src/owned_wavetable_synth.rs:126:12
[INFO] [stdout]     |
[INFO] [stdout] 126 | pub struct SynthesisEngine {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]    --> src/owned_wavetable_synth.rs:131:12
[INFO] [stdout]     |
[INFO] [stdout] 131 |     pub fn new(sample_rate: f64) -> Self {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `next`
[INFO] [stdout]    --> src/owned_wavetable_synth.rs:149:12
[INFO] [stdout]     |
[INFO] [stdout] 149 |     pub fn next(&mut self) -> Sample {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 40 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 40 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 33.90s
[INFO] running `Command { std: "docker" "inspect" "060d5e1659ba7dc98b5fca80933f5019c06ebc9aebde61acb5650db77dcceb8c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "060d5e1659ba7dc98b5fca80933f5019c06ebc9aebde61acb5650db77dcceb8c", kill_on_drop: false }`
[INFO] [stdout] 060d5e1659ba7dc98b5fca80933f5019c06ebc9aebde61acb5650db77dcceb8c
