[INFO] cloning repository https://github.com/tuzz/audio_mixer
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/tuzz/audio_mixer" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftuzz%2Faudio_mixer", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftuzz%2Faudio_mixer'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 44e21870208fc92ecbd159d9a7a44501547e1a1d
[INFO] checking tuzz/audio_mixer against try#7b3da9103634dffd4f4365cfd8642427c781d99f+rustflags=-Dinherent-method-on-receiver for 152214-denied
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftuzz%2Faudio_mixer" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/tuzz/audio_mixer
[INFO] finished tweaking git repo https://github.com/tuzz/audio_mixer
[INFO] tweaked toml for git repo https://github.com/tuzz/audio_mixer written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/tuzz/audio_mixer on toolchain 7b3da9103634dffd4f4365cfd8642427c781d99f
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+7b3da9103634dffd4f4365cfd8642427c781d99f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/tuzz/audio_mixer already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+7b3da9103634dffd4f4365cfd8642427c781d99f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[INFO] checking tuzz/audio_mixer against try#7b3da9103634dffd4f4365cfd8642427c781d99f+rustflags=-Dinherent-method-on-receiver for 152214-denied
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftuzz%2Faudio_mixer" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/tuzz/audio_mixer
[INFO] finished tweaking git repo https://github.com/tuzz/audio_mixer
[INFO] tweaked toml for git repo https://github.com/tuzz/audio_mixer written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/tuzz/audio_mixer on toolchain 7b3da9103634dffd4f4365cfd8642427c781d99f
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+7b3da9103634dffd4f4365cfd8642427c781d99f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/tuzz/audio_mixer already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+7b3da9103634dffd4f4365cfd8642427c781d99f" "fetch" "--manifest-path" "Cargo.toml", 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]  Downloading crates ...
[INFO] [stderr]   Downloaded hound v3.5.0
[INFO] [stderr]   Downloaded atomic_float v0.1.0
[INFO] [stderr]   Downloaded windows-targets v0.48.4
[INFO] [stderr]   Downloaded coreaudio-sys v0.2.12
[INFO] [stderr]   Downloaded thiserror-impl v1.0.47
[INFO] [stderr]   Downloaded num_enum_derive v0.5.11
[INFO] [stderr]   Downloaded cpal v0.14.2
[INFO] [stderr]   Downloaded jobserver v0.1.26
[INFO] [stderr]   Downloaded num_enum v0.5.11
[INFO] [stderr]   Downloaded coreaudio-rs v0.10.0
[INFO] [stderr]   Downloaded ndk v0.6.0
[INFO] [stderr]   Downloaded ndk v0.7.0
[INFO] [stderr]   Downloaded oboe v0.4.6
[INFO] [stderr]   Downloaded thiserror v1.0.47
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[INFO] [stderr]   Downloaded serde v1.0.183
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[INFO] [stderr]   Downloaded cc v1.0.82
[INFO] [stderr]   Downloaded regex v1.9.3
[INFO] [stderr]   Downloaded nix v0.23.2
[INFO] [stderr]   Downloaded ndk-sys v0.3.0
[INFO] [stderr]   Downloaded ndk-sys v0.4.1+23.1.7779620
[INFO] [stderr]   Downloaded syn v2.0.29
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[INFO] [stderr]   Downloaded serde_derive v1.0.183
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[INFO] [stderr]   Downloaded windows v0.37.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:61361fe0aef631f17e9d025a70c5a647956f8c671dd02950a60ad3f5cc5526d7" "/opt/rustwide/cargo-home/bin/cargo" "+7b3da9103634dffd4f4365cfd8642427c781d99f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ac98674eb323ba2fa80e0516f57e62b943c35733b60f394244a4487edb9eab7f
[INFO] running `Command { std: "docker" "start" "-a" "ac98674eb323ba2fa80e0516f57e62b943c35733b60f394244a4487edb9eab7f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ac98674eb323ba2fa80e0516f57e62b943c35733b60f394244a4487edb9eab7f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ac98674eb323ba2fa80e0516f57e62b943c35733b60f394244a4487edb9eab7f", kill_on_drop: false }`
[INFO] [stdout] ac98674eb323ba2fa80e0516f57e62b943c35733b60f394244a4487edb9eab7f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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 -Dinherent-method-on-receiver" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:61361fe0aef631f17e9d025a70c5a647956f8c671dd02950a60ad3f5cc5526d7" "/opt/rustwide/cargo-home/bin/cargo" "+7b3da9103634dffd4f4365cfd8642427c781d99f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 28649f7a356cf96d8f8bea736e54774eb7412ce6996b79112c5e0b94f2f0682a
[INFO] running `Command { std: "docker" "start" "-a" "28649f7a356cf96d8f8bea736e54774eb7412ce6996b79112c5e0b94f2f0682a", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling libc v0.2.147
[INFO] [stderr]    Compiling proc-macro2 v1.0.66
[INFO] [stderr]    Compiling unicode-ident v1.0.11
[INFO] [stderr]    Compiling pkg-config v0.3.27
[INFO] [stderr]    Compiling parking_lot_core v0.9.8
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]    Compiling thiserror v1.0.47
[INFO] [stderr]     Checking smallvec v1.11.0
[INFO] [stderr]    Compiling cpal v0.14.2
[INFO] [stderr]     Checking atomic_float v0.1.0
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]    Compiling lock_api v0.4.10
[INFO] [stderr]    Compiling alsa-sys v0.3.1
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]    Compiling syn v2.0.29
[INFO] [stderr]     Checking nix v0.23.2
[INFO] [stderr]     Checking parking_lot v0.12.1
[INFO] [stderr]    Compiling thiserror-impl v1.0.47
[INFO] [stderr]     Checking alsa v0.6.0
[INFO] [stderr]     Checking audio_mixer v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the feature `extract_if` has been stable since 1.87.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(extract_if)]
[INFO] [stdout]   |            ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `extract_if` has been stable since 1.87.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(extract_if)]
[INFO] [stdout]   |            ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/audio_recorder.rs:30:41
[INFO] [stdout]    |
[INFO] [stdout] 30 | fn into_f32_samples<S: Sample>(samples: &[S]) -> Cow<[f32]> {
[INFO] [stdout]    |                                         ^^^^     ^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                                         |
[INFO] [stdout]    |                                         the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 30 | fn into_f32_samples<S: Sample>(samples: &[S]) -> Cow<'_, [f32]> {
[INFO] [stdout]    |                                                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/audio_recorder.rs:30:41
[INFO] [stdout]    |
[INFO] [stdout] 30 | fn into_f32_samples<S: Sample>(samples: &[S]) -> Cow<[f32]> {
[INFO] [stdout]    |                                         ^^^^     ^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                                         |
[INFO] [stdout]    |                                         the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 30 | fn into_f32_samples<S: Sample>(samples: &[S]) -> Cow<'_, [f32]> {
[INFO] [stdout]    |                                                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `OggDecoder`
[INFO] [stdout]   --> examples/skipping_when_muted.rs:28:17
[INFO] [stdout]    |
[INFO] [stdout] 28 |   let decoder = OggDecoder::new(cursor).unwrap();
[INFO] [stdout]    |                 ^^^^^^^^^^ use of undeclared type `OggDecoder`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `OggDecoder`
[INFO] [stdout]   --> examples/pan_left_to_right.rs:14:17
[INFO] [stdout]    |
[INFO] [stdout] 14 |   let decoder = OggDecoder::new(cursor).unwrap();
[INFO] [stdout]    |                 ^^^^^^^^^^ use of undeclared type `OggDecoder`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `OggDecoder`
[INFO] [stdout]   --> examples/buffer_seeking.rs:28:17
[INFO] [stdout]    |
[INFO] [stdout] 28 |   let decoder = OggDecoder::new(cursor).unwrap();
[INFO] [stdout]    |                 ^^^^^^^^^^ use of undeclared type `OggDecoder`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `OggDecoder`
[INFO] [stdout]   --> examples/pausing_when_muted.rs:13:17
[INFO] [stdout]    |
[INFO] [stdout] 13 |   let decoder = OggDecoder::new(cursor).unwrap();
[INFO] [stdout]    |                 ^^^^^^^^^^ use of undeclared type `OggDecoder`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `audio_mixer::OggDecoder`
[INFO] [stdout]  --> examples/buffer_reuse.rs:1:61
[INFO] [stdout]   |
[INFO] [stdout] 1 | use audio_mixer::{AudioMixer, IntoChannels, IntoSampleRate, OggDecoder, ReusableBuffer};
[INFO] [stdout]   |                                                             ^^^^^^^^^^ no `OggDecoder` in the root
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `OggDecoder`
[INFO] [stdout]   --> examples/dynamic_controls.rs:18:17
[INFO] [stdout]    |
[INFO] [stdout] 18 |   let decoder = OggDecoder::new(cursor).unwrap();
[INFO] [stdout]    |                 ^^^^^^^^^^ use of undeclared type `OggDecoder`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `audio_mixer::OggDecoder`
[INFO] [stdout]  --> examples/ogg_file.rs:1:61
[INFO] [stdout]   |
[INFO] [stdout] 1 | use audio_mixer::{AudioMixer, IntoChannels, IntoSampleRate, OggDecoder};
[INFO] [stdout]   |                                                             ^^^^^^^^^^ no `OggDecoder` in the root
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `audio_mixer::WavDecoder`
[INFO] [stdout]  --> examples/recording_audio.rs:1:61
[INFO] [stdout]   |
[INFO] [stdout] 1 | use audio_mixer::{AudioMixer, IntoChannels, IntoSampleRate, WavDecoder};
[INFO] [stdout]   |                                                             ^^^^^^^^^^ no `WavDecoder` in the root
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `audio_mixer::WavDecoder`
[INFO] [stdout]  --> examples/wav_file.rs:1:61
[INFO] [stdout]   |
[INFO] [stdout] 1 | use audio_mixer::{AudioMixer, IntoChannels, IntoSampleRate, WavDecoder};
[INFO] [stdout]   |                                                             ^^^^^^^^^^ no `WavDecoder` in the root
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `hound`
[INFO] [stdout]  --> examples/recording_audio.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use hound::{WavWriter, WavSpec, SampleFormat};
[INFO] [stdout]   |     ^^^^^ use of unresolved module or unlinked crate `hound`
[INFO] [stdout]   |
[INFO] [stdout]   = help: if you wanted to use a crate named `hound`, use `cargo add hound` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0433`.
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0433`.
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0433`.
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0433`.
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0433`.
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `OggDecoder`
[INFO] [stdout]   --> examples/pausing_playback.rs:17:17
[INFO] [stdout]    |
[INFO] [stdout] 17 |   let decoder = OggDecoder::new(cursor).unwrap();
[INFO] [stdout]    |                 ^^^^^^^^^^ use of undeclared type `OggDecoder`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `OggDecoder`
[INFO] [stdout]   --> examples/low_pass.rs:32:17
[INFO] [stdout]    |
[INFO] [stdout] 32 |   let decoder = OggDecoder::new(cursor).unwrap();
[INFO] [stdout]    |                 ^^^^^^^^^^ use of undeclared type `OggDecoder`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `audio_mixer` (example "pan_left_to_right") due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] For more information about this error, try `rustc --explain E0433`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `audio_mixer` (example "skipping_when_muted") due to 1 previous error
[INFO] [stderr] error: could not compile `audio_mixer` (example "buffer_reuse") due to 1 previous error
[INFO] [stderr] error: could not compile `audio_mixer` (example "ogg_file") due to 1 previous error
[INFO] [stderr] error: could not compile `audio_mixer` (example "wav_file") due to 1 previous error
[INFO] [stderr] error: could not compile `audio_mixer` (example "buffer_seeking") due to 1 previous error
[INFO] [stdout] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `audio_mixer` (example "pausing_when_muted") due to 1 previous error
[INFO] [stderr] error: could not compile `audio_mixer` (example "dynamic_controls") due to 1 previous error
[INFO] [stdout] For more information about this error, try `rustc --explain E0433`.
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `audio_mixer::OggDecoder`
[INFO] [stdout]  --> examples/reverse_stereo.rs:1:61
[INFO] [stdout]   |
[INFO] [stdout] 1 | use audio_mixer::{AudioMixer, IntoChannels, IntoSampleRate, OggDecoder};
[INFO] [stdout]   |                                                             ^^^^^^^^^^ no `OggDecoder` in the root
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `audio_mixer` (example "pausing_playback") due to 1 previous error
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `OggDecoder`
[INFO] [stdout]   --> examples/stopping_when_muted.rs:12:17
[INFO] [stdout]    |
[INFO] [stdout] 12 |   let decoder = OggDecoder::new(cursor).unwrap();
[INFO] [stdout]    |                 ^^^^^^^^^^ use of undeclared type `OggDecoder`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `audio_mixer` (example "recording_audio") due to 2 previous errors
[INFO] [stderr] error: could not compile `audio_mixer` (example "low_pass") due to 1 previous error
[INFO] [stdout] For more information about this error, try `rustc --explain E0433`.
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `audio_mixer` (example "stopping_when_muted") due to 1 previous error
[INFO] [stderr] error: could not compile `audio_mixer` (example "reverse_stereo") due to 1 previous error
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `OggDecoder`
[INFO] [stdout]   --> examples/stopping_playback.rs:17:17
[INFO] [stdout]    |
[INFO] [stdout] 17 |   let decoder = OggDecoder::new(cursor).unwrap();
[INFO] [stdout]    |                 ^^^^^^^^^^ use of undeclared type `OggDecoder`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0433`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `audio_mixer` (example "stopping_playback") due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "28649f7a356cf96d8f8bea736e54774eb7412ce6996b79112c5e0b94f2f0682a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "28649f7a356cf96d8f8bea736e54774eb7412ce6996b79112c5e0b94f2f0682a", kill_on_drop: false }`
[INFO] [stdout] 28649f7a356cf96d8f8bea736e54774eb7412ce6996b79112c5e0b94f2f0682a