[INFO] updating cached repository https://github.com/isidornygren/ogaboga
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }`
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 52e90d80f93ff8994f309df9fb9f00c93ce1a040
[INFO] testing isidornygren/ogaboga against try#03a1ea71b075ab964b5278bc6e74cd6c52c36ee0 for pr-74409
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fisidornygren%2Fogaboga" "/workspace/builds/worker-12/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/isidornygren/ogaboga on toolchain 03a1ea71b075ab964b5278bc6e74cd6c52c36ee0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/isidornygren/ogaboga
[INFO] finished tweaking git repo https://github.com/isidornygren/ogaboga
[INFO] tweaked toml for git repo https://github.com/isidornygren/ogaboga written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate git repo https://github.com/isidornygren/ogaboga already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:d9fbb4e2287ab3795bdefaf705efb7541a8875c13bce71e067d6b01dc5ed759b" "/opt/rustwide/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1c25c91509330f3a57ce6b131766ced5324fb927b20b39495c1ea369f13f9b27
[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" "1c25c91509330f3a57ce6b131766ced5324fb927b20b39495c1ea369f13f9b27", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1c25c91509330f3a57ce6b131766ced5324fb927b20b39495c1ea369f13f9b27", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1c25c91509330f3a57ce6b131766ced5324fb927b20b39495c1ea369f13f9b27", kill_on_drop: false }`
[INFO] [stdout] 1c25c91509330f3a57ce6b131766ced5324fb927b20b39495c1ea369f13f9b27
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:d9fbb4e2287ab3795bdefaf705efb7541a8875c13bce71e067d6b01dc5ed759b" "/opt/rustwide/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] aa3c78c21e708a31cabc66f56fd09408b107a922a8a5718dda5bb8de819c61b0
[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" "aa3c78c21e708a31cabc66f56fd09408b107a922a8a5718dda5bb8de819c61b0", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.65
[INFO] [stderr]    Compiling syn v1.0.8
[INFO] [stderr]    Compiling getrandom v0.1.13
[INFO] [stderr]    Compiling pkg-config v0.3.14
[INFO] [stderr]    Compiling num-traits v0.2.6
[INFO] [stderr]    Compiling ppv-lite86 v0.2.6
[INFO] [stderr]    Compiling cpal v0.10.0
[INFO] [stderr]    Compiling alsa-sys v0.1.2
[INFO] [stderr]    Compiling c2-chacha v0.2.3
[INFO] [stderr]    Compiling backtrace-sys v0.1.32
[INFO] [stderr]    Compiling backtrace v0.3.40
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_chacha v0.2.1
[INFO] [stderr]    Compiling rand v0.7.2
[INFO] [stderr]    Compiling synstructure v0.12.3
[INFO] [stderr]    Compiling failure_derive v0.1.6
[INFO] [stderr]    Compiling failure v0.1.6
[INFO] [stderr]    Compiling ogaboga v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `Rng`, `thread_rng`
[INFO] [stdout]  --> src/sequencer/mod.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | use rand::{thread_rng, Rng};
[INFO] [stdout]   |            ^^^^^^^^^^  ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `WaveForm`, `effects::Effect`
[INFO] [stdout]  --> src/voice.rs:2:4
[INFO] [stdout]   |
[INFO] [stdout] 2 |    effects::Effect,
[INFO] [stdout]   |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 3 |    pulse_modulator::PulseModulator,
[INFO] [stdout] 4 |    wave_generator::{WaveBox, WaveForm, WaveGenerator},
[INFO] [stdout]   |                              ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/voice_pool.rs:100:16
[INFO] [stdout]     |
[INFO] [stdout] 100 |                _ => return,
[INFO] [stdout]     |                ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `index`
[INFO] [stdout]   --> src/sequencer/generator.rs:10:33
[INFO] [stdout]    |
[INFO] [stdout] 10 |    fn generate_half_step(&self, index: usize, len: usize) -> SequenceStep {
[INFO] [stdout]    |                                 ^^^^^ help: if this is intentional, prefix it with an underscore: `_index`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `len`
[INFO] [stdout]   --> src/sequencer/generator.rs:10:47
[INFO] [stdout]    |
[INFO] [stdout] 10 |    fn generate_half_step(&self, index: usize, len: usize) -> SequenceStep {
[INFO] [stdout]    |                                               ^^^ help: if this is intentional, prefix it with an underscore: `_len`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/effects.rs:12:11
[INFO] [stdout]    |
[INFO] [stdout] 12 |    pub fn new(diffuser: f32) -> Self {
[INFO] [stdout]    |           ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `Db_MINOR` should have an upper case name
[INFO] [stdout]   --> src/scale/mod.rs:26:11
[INFO] [stdout]    |
[INFO] [stdout] 26 | pub const Db_MINOR: [Note; 7] = [
[INFO] [stdout]    |           ^^^^^^^^ help: convert the identifier to upper case: `DB_MINOR`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_upper_case_globals)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/voice_pool.rs:87:7
[INFO] [stdout]    |
[INFO] [stdout] 87 |       event_loop.play_stream(stream_id);
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 26.09s
[INFO] running `Command { std: "docker" "inspect" "aa3c78c21e708a31cabc66f56fd09408b107a922a8a5718dda5bb8de819c61b0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aa3c78c21e708a31cabc66f56fd09408b107a922a8a5718dda5bb8de819c61b0", kill_on_drop: false }`
[INFO] [stdout] aa3c78c21e708a31cabc66f56fd09408b107a922a8a5718dda5bb8de819c61b0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:d9fbb4e2287ab3795bdefaf705efb7541a8875c13bce71e067d6b01dc5ed759b" "/opt/rustwide/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 76bd76e00c374223804ac86cccd5c32df6548ee608fc023d703e6581d9ab9aab
[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" "76bd76e00c374223804ac86cccd5c32df6548ee608fc023d703e6581d9ab9aab", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling ogaboga v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `Rng`, `thread_rng`
[INFO] [stdout]  --> src/sequencer/mod.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | use rand::{thread_rng, Rng};
[INFO] [stdout]   |            ^^^^^^^^^^  ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `WaveForm`, `effects::Effect`
[INFO] [stdout]  --> src/voice.rs:2:4
[INFO] [stdout]   |
[INFO] [stdout] 2 |    effects::Effect,
[INFO] [stdout]   |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 3 |    pulse_modulator::PulseModulator,
[INFO] [stdout] 4 |    wave_generator::{WaveBox, WaveForm, WaveGenerator},
[INFO] [stdout]   |                              ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/voice_pool.rs:100:16
[INFO] [stdout]     |
[INFO] [stdout] 100 |                _ => return,
[INFO] [stdout]     |                ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `index`
[INFO] [stdout]   --> src/sequencer/generator.rs:10:33
[INFO] [stdout]    |
[INFO] [stdout] 10 |    fn generate_half_step(&self, index: usize, len: usize) -> SequenceStep {
[INFO] [stdout]    |                                 ^^^^^ help: if this is intentional, prefix it with an underscore: `_index`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `len`
[INFO] [stdout]   --> src/sequencer/generator.rs:10:47
[INFO] [stdout]    |
[INFO] [stdout] 10 |    fn generate_half_step(&self, index: usize, len: usize) -> SequenceStep {
[INFO] [stdout]    |                                               ^^^ help: if this is intentional, prefix it with an underscore: `_len`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/effects.rs:12:11
[INFO] [stdout]    |
[INFO] [stdout] 12 |    pub fn new(diffuser: f32) -> Self {
[INFO] [stdout]    |           ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `Db_MINOR` should have an upper case name
[INFO] [stdout]   --> src/scale/mod.rs:26:11
[INFO] [stdout]    |
[INFO] [stdout] 26 | pub const Db_MINOR: [Note; 7] = [
[INFO] [stdout]    |           ^^^^^^^^ help: convert the identifier to upper case: `DB_MINOR`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_upper_case_globals)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/voice_pool.rs:87:7
[INFO] [stdout]    |
[INFO] [stdout] 87 |       event_loop.play_stream(stream_id);
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `one_bit_noise`, `square_wave`, `white_noise`
[INFO] [stdout]   --> examples/drum_machine.rs:10:28
[INFO] [stdout]    |
[INFO] [stdout] 10 |    waveforms::{freq_noise, one_bit_noise, sawtooth_wave, square_wave, triangle_wave, white_noise},
[INFO] [stdout]    |                            ^^^^^^^^^^^^^                 ^^^^^^^^^^^                 ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `rand::Rng`
[INFO] [stdout]   --> examples/drum_machine.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | use rand::Rng;
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `thread`, `time`
[INFO] [stdout]   --> examples/drum_machine.rs:14:11
[INFO] [stdout]    |
[INFO] [stdout] 14 | use std::{thread, time};
[INFO] [stdout]    |           ^^^^^^  ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Rng`, `thread_rng`
[INFO] [stdout]  --> src/sequencer/mod.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | use rand::{thread_rng, Rng};
[INFO] [stdout]   |            ^^^^^^^^^^  ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `WaveForm`, `effects::Effect`
[INFO] [stdout]  --> src/voice.rs:2:4
[INFO] [stdout]   |
[INFO] [stdout] 2 |    effects::Effect,
[INFO] [stdout]   |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 3 |    pulse_modulator::PulseModulator,
[INFO] [stdout] 4 |    wave_generator::{WaveBox, WaveForm, WaveGenerator},
[INFO] [stdout]   |                              ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `sawtooth_wave`, `square_wave`
[INFO] [stdout]  --> examples/random.rs:5:16
[INFO] [stdout]   |
[INFO] [stdout] 5 |    waveforms::{sawtooth_wave, square_wave, triangle_wave},
[INFO] [stdout]   |                ^^^^^^^^^^^^^  ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `rand::Rng`
[INFO] [stdout]  --> examples/random.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use rand::Rng;
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `thread`, `time`
[INFO] [stdout]  --> examples/random.rs:9:11
[INFO] [stdout]   |
[INFO] [stdout] 9 | use std::{thread, time};
[INFO] [stdout]   |           ^^^^^^  ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/voice_pool.rs:100:16
[INFO] [stdout]     |
[INFO] [stdout] 100 |                _ => return,
[INFO] [stdout]     |                ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `index`
[INFO] [stdout]   --> src/sequencer/generator.rs:10:33
[INFO] [stdout]    |
[INFO] [stdout] 10 |    fn generate_half_step(&self, index: usize, len: usize) -> SequenceStep {
[INFO] [stdout]    |                                 ^^^^^ help: if this is intentional, prefix it with an underscore: `_index`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `len`
[INFO] [stdout]   --> src/sequencer/generator.rs:10:47
[INFO] [stdout]    |
[INFO] [stdout] 10 |    fn generate_half_step(&self, index: usize, len: usize) -> SequenceStep {
[INFO] [stdout]    |                                               ^^^ help: if this is intentional, prefix it with an underscore: `_len`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/effects.rs:12:11
[INFO] [stdout]    |
[INFO] [stdout] 12 |    pub fn new(diffuser: f32) -> Self {
[INFO] [stdout]    |           ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `Db_MINOR` should have an upper case name
[INFO] [stdout]   --> src/scale/mod.rs:26:11
[INFO] [stdout]    |
[INFO] [stdout] 26 | pub const Db_MINOR: [Note; 7] = [
[INFO] [stdout]    |           ^^^^^^^^ help: convert the identifier to upper case: `DB_MINOR`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_upper_case_globals)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/voice_pool.rs:87:7
[INFO] [stdout]    |
[INFO] [stdout] 87 |       event_loop.play_stream(stream_id);
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.24s
[INFO] running `Command { std: "docker" "inspect" "76bd76e00c374223804ac86cccd5c32df6548ee608fc023d703e6581d9ab9aab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "76bd76e00c374223804ac86cccd5c32df6548ee608fc023d703e6581d9ab9aab", kill_on_drop: false }`
[INFO] [stdout] 76bd76e00c374223804ac86cccd5c32df6548ee608fc023d703e6581d9ab9aab
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:d9fbb4e2287ab3795bdefaf705efb7541a8875c13bce71e067d6b01dc5ed759b" "/opt/rustwide/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 549a896449e9da29c06375f9a92fec2c73eb010afb74d6e0bb7ba3be136a1553
[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" "549a896449e9da29c06375f9a92fec2c73eb010afb74d6e0bb7ba3be136a1553", kill_on_drop: false }`
[INFO] [stderr] warning: unused imports: `Rng`, `thread_rng`
[INFO] [stderr]  --> src/sequencer/mod.rs:1:12
[INFO] [stderr]   |
[INFO] [stderr] 1 | use rand::{thread_rng, Rng};
[INFO] [stderr]   |            ^^^^^^^^^^  ^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `WaveForm`, `effects::Effect`
[INFO] [stderr]  --> src/voice.rs:2:4
[INFO] [stderr]   |
[INFO] [stderr] 2 |    effects::Effect,
[INFO] [stderr]   |    ^^^^^^^^^^^^^^^
[INFO] [stderr] 3 |    pulse_modulator::PulseModulator,
[INFO] [stderr] 4 |    wave_generator::{WaveBox, WaveForm, WaveGenerator},
[INFO] [stderr]   |                              ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable pattern
[INFO] [stderr]    --> src/voice_pool.rs:100:16
[INFO] [stderr]     |
[INFO] [stderr] 100 |                _ => return,
[INFO] [stderr]     |                ^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `index`
[INFO] [stderr]   --> src/sequencer/generator.rs:10:33
[INFO] [stderr]    |
[INFO] [stderr] 10 |    fn generate_half_step(&self, index: usize, len: usize) -> SequenceStep {
[INFO] [stderr]    |                                 ^^^^^ help: if this is intentional, prefix it with an underscore: `_index`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `len`
[INFO] [stderr]   --> src/sequencer/generator.rs:10:47
[INFO] [stderr]    |
[INFO] [stderr] 10 |    fn generate_half_step(&self, index: usize, len: usize) -> SequenceStep {
[INFO] [stderr]    |                                               ^^^ help: if this is intentional, prefix it with an underscore: `_len`
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new`
[INFO] [stderr]   --> src/effects.rs:12:11
[INFO] [stderr]    |
[INFO] [stderr] 12 |    pub fn new(diffuser: f32) -> Self {
[INFO] [stderr]    |           ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: constant `Db_MINOR` should have an upper case name
[INFO] [stderr]   --> src/scale/mod.rs:26:11
[INFO] [stderr]    |
[INFO] [stderr] 26 | pub const Db_MINOR: [Note; 7] = [
[INFO] [stderr]    |           ^^^^^^^^ help: convert the identifier to upper case: `DB_MINOR`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(non_upper_case_globals)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/voice_pool.rs:87:7
[INFO] [stderr]    |
[INFO] [stderr] 87 |       event_loop.play_stream(stream_id);
[INFO] [stderr]    |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: 8 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Rng`, `thread_rng`
[INFO] [stderr]  --> src/sequencer/mod.rs:1:12
[INFO] [stderr]   |
[INFO] [stderr] 1 | use rand::{thread_rng, Rng};
[INFO] [stderr]   |            ^^^^^^^^^^  ^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `WaveForm`, `effects::Effect`
[INFO] [stderr]  --> src/voice.rs:2:4
[INFO] [stderr]   |
[INFO] [stderr] 2 |    effects::Effect,
[INFO] [stderr]   |    ^^^^^^^^^^^^^^^
[INFO] [stderr] 3 |    pulse_modulator::PulseModulator,
[INFO] [stderr] 4 |    wave_generator::{WaveBox, WaveForm, WaveGenerator},
[INFO] [stderr]   |                              ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable pattern
[INFO] [stderr]    --> src/voice_pool.rs:100:16
[INFO] [stderr]     |
[INFO] [stderr] 100 |                _ => return,
[INFO] [stderr]     |                ^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `index`
[INFO] [stderr]   --> src/sequencer/generator.rs:10:33
[INFO] [stderr]    |
[INFO] [stderr] 10 |    fn generate_half_step(&self, index: usize, len: usize) -> SequenceStep {
[INFO] [stderr]    |                                 ^^^^^ help: if this is intentional, prefix it with an underscore: `_index`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `len`
[INFO] [stderr]   --> src/sequencer/generator.rs:10:47
[INFO] [stderr]    |
[INFO] [stderr] 10 |    fn generate_half_step(&self, index: usize, len: usize) -> SequenceStep {
[INFO] [stderr]    |                                               ^^^ help: if this is intentional, prefix it with an underscore: `_len`
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new`
[INFO] [stderr]   --> src/effects.rs:12:11
[INFO] [stderr]    |
[INFO] [stderr] 12 |    pub fn new(diffuser: f32) -> Self {
[INFO] [stderr]    |           ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: constant `Db_MINOR` should have an upper case name
[INFO] [stderr]   --> src/scale/mod.rs:26:11
[INFO] [stderr]    |
[INFO] [stderr] 26 | pub const Db_MINOR: [Note; 7] = [
[INFO] [stderr]    |           ^^^^^^^^ help: convert the identifier to upper case: `DB_MINOR`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(non_upper_case_globals)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/voice_pool.rs:87:7
[INFO] [stderr]    |
[INFO] [stderr] 87 |       event_loop.play_stream(stream_id);
[INFO] [stderr]    |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: 8 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `sawtooth_wave`, `square_wave`
[INFO] [stderr]  --> examples/random.rs:5:16
[INFO] [stderr]   |
[INFO] [stderr] 5 |    waveforms::{sawtooth_wave, square_wave, triangle_wave},
[INFO] [stderr]   |                ^^^^^^^^^^^^^  ^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `rand::Rng`
[INFO] [stderr]  --> examples/random.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 | use rand::Rng;
[INFO] [stderr]   |     ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `thread`, `time`
[INFO] [stderr]  --> examples/random.rs:9:11
[INFO] [stderr]   |
[INFO] [stderr] 9 | use std::{thread, time};
[INFO] [stderr]   |           ^^^^^^  ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 3 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `one_bit_noise`, `square_wave`, `white_noise`
[INFO] [stderr]   --> examples/drum_machine.rs:10:28
[INFO] [stderr]    |
[INFO] [stderr] 10 |    waveforms::{freq_noise, one_bit_noise, sawtooth_wave, square_wave, triangle_wave, white_noise},
[INFO] [stderr]    |                            ^^^^^^^^^^^^^                 ^^^^^^^^^^^                 ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `rand::Rng`
[INFO] [stderr]   --> examples/drum_machine.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 | use rand::Rng;
[INFO] [stderr]    |     ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `thread`, `time`
[INFO] [stderr]   --> examples/drum_machine.rs:14:11
[INFO] [stderr]    |
[INFO] [stderr] 14 | use std::{thread, time};
[INFO] [stderr]    |           ^^^^^^  ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 3 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.12s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/ogaboga-9b8744fc1eed21d7
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test pulse_modulator::tests::calculates_attack_coef ... ok
[INFO] [stdout] test pulse_modulator::tests::calculates_decay_coef ... ok
[INFO] [stdout] test waveforms::tests::triangle_wave_is_periodic ... ok
[INFO] [stdout] test pulse_modulator::tests::calculates_release_coef ... ok
[INFO] [stdout] test waveforms::tests::square_wave_is_periodic ... ok
[INFO] [stdout] test waveforms::tests::sawtooth_wave_is_periodic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests ogaboga
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "549a896449e9da29c06375f9a92fec2c73eb010afb74d6e0bb7ba3be136a1553", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "549a896449e9da29c06375f9a92fec2c73eb010afb74d6e0bb7ba3be136a1553", kill_on_drop: false }`
[INFO] [stdout] 549a896449e9da29c06375f9a92fec2c73eb010afb74d6e0bb7ba3be136a1553