[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] testing ErikNatanael/rust_synthesis_profiling against beta-2020-10-09 for beta-1.48-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FErikNatanael%2Frust_synthesis_profiling" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ErikNatanael/rust_synthesis_profiling on toolchain beta-2020-10-09
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "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-4/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-2020-10-09" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating git repository `https://github.com/RustAudio/rust-jack.git`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded coremidi-sys v2.0.2
[INFO] [stderr]   Downloaded libmath v0.2.1
[INFO] [stderr]   Downloaded dasp_window v0.11.0
[INFO] [stderr]   Downloaded alsa v0.2.2
[INFO] [stderr]   Downloaded oscen v0.1.4
[INFO] [stderr]   Downloaded midir v0.5.0
[INFO] [stderr]   Downloaded winmm-sys v0.2.0
[INFO] [stderr]   Downloaded dasp_interpolate v0.11.0
[INFO] [stderr]   Downloaded dasp_rms v0.11.0
[INFO] [stderr]   Downloaded dasp_peak v0.11.0
[INFO] [stderr]   Downloaded dasp v0.11.0
[INFO] [stderr]   Downloaded pitch_calc v0.12.0
[INFO] [stderr]   Downloaded dasp_sample v0.11.0
[INFO] [stderr]   Downloaded dasp_slice v0.11.0
[INFO] [stderr]   Downloaded dasp_signal v0.11.0
[INFO] [stderr]   Downloaded dasp_frame v0.11.0
[INFO] [stderr]   Downloaded memalloc v0.1.0
[INFO] [stderr]   Downloaded dasp_ring_buffer v0.11.0
[INFO] [stderr]   Downloaded dasp_envelope v0.11.0
[INFO] [stderr]   Downloaded coremidi v0.3.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-10-09" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 189cd41da5dea6e96b8024603c3c85c8ef445e88b5b0ac539810272ffa9c02b0
[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" "189cd41da5dea6e96b8024603c3c85c8ef445e88b5b0ac539810272ffa9c02b0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "189cd41da5dea6e96b8024603c3c85c8ef445e88b5b0ac539810272ffa9c02b0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "189cd41da5dea6e96b8024603c3c85c8ef445e88b5b0ac539810272ffa9c02b0", kill_on_drop: false }`
[INFO] [stdout] 189cd41da5dea6e96b8024603c3c85c8ef445e88b5b0ac539810272ffa9c02b0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-10-09" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f96c865b4c3c21435b7b0249d25b69293dc70a0cc287fb5c72847371d8c22f7d
[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" "f96c865b4c3c21435b7b0249d25b69293dc70a0cc287fb5c72847371d8c22f7d", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.73
[INFO] [stderr]    Compiling dasp_sample v0.11.0
[INFO] [stderr]    Compiling rustc-serialize v0.3.24
[INFO] [stderr]    Compiling dasp_ring_buffer v0.11.0
[INFO] [stderr]    Compiling libloading v0.6.2
[INFO] [stderr]    Compiling memalloc v0.1.0
[INFO] [stderr]    Compiling bitflags v0.3.3
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]    Compiling num-bigint v0.2.6
[INFO] [stderr]    Compiling alsa-sys v0.1.2
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]    Compiling num-rational v0.2.4
[INFO] [stderr]    Compiling approx v0.3.2
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
[INFO] [stderr]    Compiling crossbeam-deque v0.7.3
[INFO] [stderr]    Compiling dasp_frame v0.11.0
[INFO] [stderr]    Compiling dasp_window v0.11.0
[INFO] [stderr]    Compiling crossbeam v0.7.3
[INFO] [stderr]    Compiling num-iter v0.1.41
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling nix v0.9.0
[INFO] [stderr]    Compiling jack-sys v0.2.0 (https://github.com/RustAudio/rust-jack.git#41fab12b)
[INFO] [stderr]    Compiling jack v0.6.2 (https://github.com/RustAudio/rust-jack.git#41fab12b)
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling dasp_peak v0.11.0
[INFO] [stderr]    Compiling dasp_rms v0.11.0
[INFO] [stderr]    Compiling dasp_interpolate v0.11.0
[INFO] [stderr]    Compiling dasp_slice v0.11.0
[INFO] [stderr]    Compiling dasp_envelope v0.11.0
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling dasp_signal v0.11.0
[INFO] [stderr]    Compiling rand v0.3.23
[INFO] [stderr]    Compiling libmath v0.2.1
[INFO] [stderr]    Compiling num v0.2.1
[INFO] [stderr]    Compiling dasp v0.11.0
[INFO] [stderr]    Compiling num-bigint v0.1.44
[INFO] [stderr]    Compiling num-complex v0.1.43
[INFO] [stderr]    Compiling uuid v0.8.1
[INFO] [stderr]    Compiling rand_distr v0.2.2
[INFO] [stderr]    Compiling num-rational v0.1.42
[INFO] [stderr]    Compiling num v0.1.42
[INFO] [stderr]    Compiling pitch_calc v0.12.0
[INFO] [stderr]    Compiling alsa v0.2.2
[INFO] [stderr]    Compiling midir v0.5.0
[INFO] [stderr]    Compiling oscen v0.1.4
[INFO] [stderr]    Compiling 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 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: 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: 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] error: linking with `cc` failed: exit code: 1
[INFO] [stdout]   |
[INFO] [stdout]   = note: "cc" "-Wl,--as-needed" "-Wl,-z,noexecstack" "-m64" "-Wl,--eh-frame-hdr" "-L" "/opt/rustwide/rustup-home/toolchains/beta-2020-10-09-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "/opt/rustwide/target/debug/deps/synthesis_profiling-1430e7b86589535c.synthesis_profiling.8fg9680v-cgu.0.rcgu.o" "/opt/rustwide/target/debug/deps/synthesis_profiling-1430e7b86589535c.synthesis_profiling.8fg9680v-cgu.1.rcgu.o" "/opt/rustwide/target/debug/deps/synthesis_profiling-1430e7b86589535c.synthesis_profiling.8fg9680v-cgu.10.rcgu.o" "/opt/rustwide/target/debug/deps/synthesis_profiling-1430e7b86589535c.synthesis_profiling.8fg9680v-cgu.11.rcgu.o" "/opt/rustwide/target/debug/deps/synthesis_profiling-1430e7b86589535c.synthesis_profiling.8fg9680v-cgu.12.rcgu.o" "/opt/rustwide/target/debug/deps/synthesis_profiling-1430e7b86589535c.synthesis_profiling.8fg9680v-cgu.13.rcgu.o" "/opt/rustwide/target/debug/deps/synthesis_profiling-1430e7b86589535c.synthesis_profiling.8fg9680v-cgu.14.rcgu.o" "/opt/rustwide/target/debug/deps/synthesis_profiling-1430e7b86589535c.synthesis_profiling.8fg9680v-cgu.15.rcgu.o" "/opt/rustwide/target/debug/deps/synthesis_profiling-1430e7b86589535c.synthesis_profiling.8fg9680v-cgu.2.rcgu.o" "/opt/rustwide/target/debug/deps/synthesis_profiling-1430e7b86589535c.synthesis_profiling.8fg9680v-cgu.3.rcgu.o" "/opt/rustwide/target/debug/deps/synthesis_profiling-1430e7b86589535c.synthesis_profiling.8fg9680v-cgu.4.rcgu.o" "/opt/rustwide/target/debug/deps/synthesis_profiling-1430e7b86589535c.synthesis_profiling.8fg9680v-cgu.5.rcgu.o" "/opt/rustwide/target/debug/deps/synthesis_profiling-1430e7b86589535c.synthesis_profiling.8fg9680v-cgu.6.rcgu.o" "/opt/rustwide/target/debug/deps/synthesis_profiling-1430e7b86589535c.synthesis_profiling.8fg9680v-cgu.7.rcgu.o" "/opt/rustwide/target/debug/deps/synthesis_profiling-1430e7b86589535c.synthesis_profiling.8fg9680v-cgu.8.rcgu.o" "/opt/rustwide/target/debug/deps/synthesis_profiling-1430e7b86589535c.synthesis_profiling.8fg9680v-cgu.9.rcgu.o" "-o" "/opt/rustwide/target/debug/deps/synthesis_profiling-1430e7b86589535c" "/opt/rustwide/target/debug/deps/synthesis_profiling-1430e7b86589535c.533y7d05kz31h8b.rcgu.o" "-Wl,--gc-sections" "-pie" "-Wl,-zrelro" "-Wl,-znow" "-nodefaultlibs" "-L" "/opt/rustwide/target/debug/deps" "-L" "/usr/lib/x86_64-linux-gnu" "-L" "/opt/rustwide/rustup-home/toolchains/beta-2020-10-09-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-Wl,-Bstatic" "/opt/rustwide/target/debug/deps/libjack-53899153ef120e74.rlib" "/opt/rustwide/target/debug/deps/libbitflags-ef3b499484556621.rlib" "/opt/rustwide/target/debug/deps/libjack_sys-265a44577eb73073.rlib" "/opt/rustwide/target/debug/deps/liblibloading-c8393f2897680568.rlib" "/opt/rustwide/target/debug/deps/liboscen-143a2afd38cf5229.rlib" "/opt/rustwide/target/debug/deps/libapprox-06fb42c4ca8f5dba.rlib" "/opt/rustwide/target/debug/deps/libpitch_calc-94ca5d1096421421.rlib" "/opt/rustwide/target/debug/deps/libnum-d79d83fe3e8be199.rlib" "/opt/rustwide/target/debug/deps/libnum_rational-0fd95bd674c54c3d.rlib" "/opt/rustwide/target/debug/deps/libnum_bigint-7bee4482f1c4f5d9.rlib" "/opt/rustwide/target/debug/deps/libnum_complex-1d5da6fbe6a0acda.rlib" "/opt/rustwide/target/debug/deps/librustc_serialize-826df4b40c62d022.rlib" "/opt/rustwide/target/debug/deps/libnum_iter-6656b01f45368b3a.rlib" "/opt/rustwide/target/debug/deps/libnum_integer-94fd0f13cfea77ad.rlib" "/opt/rustwide/target/debug/deps/libnum_traits-63253226b9d79376.rlib" "/opt/rustwide/target/debug/deps/libmidir-e815bf331768ce5a.rlib" "/opt/rustwide/target/debug/deps/libalsa-daa510fb48f88207.rlib" "/opt/rustwide/target/debug/deps/libnix-e5c6df7fc61badf3.rlib" "/opt/rustwide/target/debug/deps/libvoid-2b8404f9072f9abf.rlib" "/opt/rustwide/target/debug/deps/libbitflags-e1adf2d5a3c5eab4.rlib" "/opt/rustwide/target/debug/deps/libalsa_sys-fe393ed1111039f2.rlib" "/opt/rustwide/target/debug/deps/libmemalloc-5d059870528b9476.rlib" "/opt/rustwide/target/debug/deps/libcrossbeam-934fd049f3d8d33f.rlib" "/opt/rustwide/target/debug/deps/libcrossbeam_queue-670378d1dd2e0065.rlib" "/opt/rustwide/target/debug/deps/libcrossbeam_channel-060061f26f7bc233.rlib" "/opt/rustwide/target/debug/deps/libcrossbeam_deque-447ad0e773d2fec5.rlib" "/opt/rustwide/target/debug/deps/libcrossbeam_epoch-13f0de8068810416.rlib" "/opt/rustwide/target/debug/deps/libscopeguard-f8ee11e5515cbd29.rlib" "/opt/rustwide/target/debug/deps/libmemoffset-071153b460537785.rlib" "/opt/rustwide/target/debug/deps/libcrossbeam_utils-60e677f79172690c.rlib" "/opt/rustwide/target/debug/deps/liblazy_static-03dc560a77c5aa3e.rlib" "/opt/rustwide/target/debug/deps/libmaybe_uninit-5af35797bdba708c.rlib" "/opt/rustwide/target/debug/deps/librand_distr-62a93172521363e0.rlib" "/opt/rustwide/target/debug/deps/libmath-b97e2ba5410ad1db.rlib" "/opt/rustwide/target/debug/deps/librand-978d7b2fefa2c3d4.rlib" "/opt/rustwide/target/debug/deps/librand-8fcbea6deaccc47d.rlib" "/opt/rustwide/target/debug/deps/libuuid-41edb078988a7de0.rlib" "/opt/rustwide/target/debug/deps/librand-c2d48acf7f7a951c.rlib" "/opt/rustwide/target/debug/deps/librand_chacha-84580c9103dbbeed.rlib" "/opt/rustwide/target/debug/deps/libppv_lite86-170c4fd0b2d212af.rlib" "/opt/rustwide/target/debug/deps/librand_core-65650b81b1aab10f.rlib" "/opt/rustwide/target/debug/deps/libgetrandom-afc3f82746020096.rlib" "/opt/rustwide/target/debug/deps/liblibc-f65a7f11000d688e.rlib" "/opt/rustwide/target/debug/deps/libcfg_if-727e218cbe4629d5.rlib" "/opt/rustwide/target/debug/deps/libdasp-3aadcf059129ad04.rlib" "/opt/rustwide/target/debug/deps/libdasp_slice-0d492989a3db76e9.rlib" "/opt/rustwide/target/debug/deps/libdasp_signal-391c1451ea126347.rlib" "/opt/rustwide/target/debug/deps/libdasp_window-ab1f208ed4ceed9d.rlib" "/opt/rustwide/target/debug/deps/libdasp_interpolate-d520cb7b2930a662.rlib" "/opt/rustwide/target/debug/deps/libdasp_envelope-73a2c62c07108643.rlib" "/opt/rustwide/target/debug/deps/libdasp_rms-be652ca1c7fc0db8.rlib" "/opt/rustwide/target/debug/deps/libdasp_ring_buffer-a091b3a33330173c.rlib" "/opt/rustwide/target/debug/deps/libdasp_peak-5205647c70b9b716.rlib" "/opt/rustwide/target/debug/deps/libdasp_frame-f57db766f53af30c.rlib" "/opt/rustwide/target/debug/deps/libdasp_sample-6787f55d4a863956.rlib" "-Wl,--start-group" "/opt/rustwide/rustup-home/toolchains/beta-2020-10-09-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-3532beb752f910d7.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-10-09-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libpanic_unwind-3529ece450b7f3c6.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-10-09-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libminiz_oxide-23e8f582a6744f80.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-10-09-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libadler-5e7e0793b29cbf78.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-10-09-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libobject-253e0736424ceb78.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-10-09-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libaddr2line-b6fd484888124c85.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-10-09-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libgimli-cca4d20e4b53839c.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-10-09-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_demangle-0a7401891c2a4f50.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-10-09-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libhashbrown-efbb25e073df787e.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-10-09-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_alloc-25965457612624bc.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-10-09-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libunwind-09058283ea779342.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-10-09-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcfg_if-ab973dacc0513511.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-10-09-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liblibc-b437d6640b1f764b.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-10-09-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liballoc-8cc0b2380206399c.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-10-09-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_core-727cdf2b6a468113.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-10-09-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore-cf4d442d877ea2f4.rlib" "-Wl,--end-group" "/opt/rustwide/rustup-home/toolchains/beta-2020-10-09-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcompiler_builtins-7e5b6df427ca977c.rlib" "-Wl,-Bdynamic" "-ljack" "-ldl" "-lasound" "-lutil" "-ldl" "-lutil" "-lgcc_s" "-lc" "-lm" "-lrt" "-lpthread" "-lutil" "-ldl" "-lutil"
[INFO] [stdout]   = note: /usr/bin/ld: cannot find -ljack
[INFO] [stdout]           collect2: error: ld returned 1 exit status
[INFO] [stdout]           
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 40 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `synthesis_profiling`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "f96c865b4c3c21435b7b0249d25b69293dc70a0cc287fb5c72847371d8c22f7d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f96c865b4c3c21435b7b0249d25b69293dc70a0cc287fb5c72847371d8c22f7d", kill_on_drop: false }`
[INFO] [stdout] f96c865b4c3c21435b7b0249d25b69293dc70a0cc287fb5c72847371d8c22f7d
