[INFO] cloning repository https://github.com/kennoath/minimix
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kennoath/minimix" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkennoath%2Fminimix", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkennoath%2Fminimix'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6e0762ca84155ec98d2f96c35022ad5b51904de1
[INFO] testing kennoath/minimix against master#733b47ea4b1b86216f14ef56e49440c33933f230+rustflags=-Copt-level=3 for pr-138759
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkennoath%2Fminimix" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/kennoath/minimix
[INFO] finished tweaking git repo https://github.com/kennoath/minimix
[INFO] tweaked toml for git repo https://github.com/kennoath/minimix written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/kennoath/minimix on toolchain 733b47ea4b1b86216f14ef56e49440c33933f230
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/kennoath/minimix 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" "+733b47ea4b1b86216f14ef56e49440c33933f230" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] af66633732137e4bf1d7d6454311302af39aa6606dc5980469f1751e1c977d72
[INFO] running `Command { std: "docker" "start" "-a" "af66633732137e4bf1d7d6454311302af39aa6606dc5980469f1751e1c977d72", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "af66633732137e4bf1d7d6454311302af39aa6606dc5980469f1751e1c977d72", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "af66633732137e4bf1d7d6454311302af39aa6606dc5980469f1751e1c977d72", kill_on_drop: false }`
[INFO] [stdout] af66633732137e4bf1d7d6454311302af39aa6606dc5980469f1751e1c977d72
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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 -Copt-level=3" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 55cbd52ae1db33024c1c320c852588f35763f85f6b80e8ef1645e61e8e3cb401
[INFO] running `Command { std: "docker" "start" "-a" "55cbd52ae1db33024c1c320c852588f35763f85f6b80e8ef1645e61e8e3cb401", kill_on_drop: false }`
[INFO] [stderr]    Compiling minimix v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function `khash` is never used
[INFO] [stdout]  --> src/rng.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn khash(mut state: u32) -> u32 {
[INFO] [stdout]   |        ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `krand` is never used
[INFO] [stdout]  --> src/rng.rs:9:8
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub fn krand(seed: u32) -> f32 {
[INFO] [stdout]   |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Rng` is never constructed
[INFO] [stdout]   --> src/rng.rs:14:12
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub struct Rng {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new_random`, `new_seeded`, `next_float`, `next_u32`, and `next_u64` are never used
[INFO] [stdout]   --> src/rng.rs:19:12
[INFO] [stdout]    |
[INFO] [stdout] 18 | impl Rng {
[INFO] [stdout]    | -------- associated items in this implementation
[INFO] [stdout] 19 |     pub fn new_random() -> Self {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 22 |     pub fn new_seeded(starting_seed: u32) -> Self {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 25 |     pub fn next_float(&mut self) -> f32 {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 29 |     pub fn next_u32(&mut self) -> u32 {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 34 |     pub fn next_u64(&mut self) -> u64 {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.53s
[INFO] running `Command { std: "docker" "inspect" "55cbd52ae1db33024c1c320c852588f35763f85f6b80e8ef1645e61e8e3cb401", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "55cbd52ae1db33024c1c320c852588f35763f85f6b80e8ef1645e61e8e3cb401", kill_on_drop: false }`
[INFO] [stdout] 55cbd52ae1db33024c1c320c852588f35763f85f6b80e8ef1645e61e8e3cb401
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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 -Copt-level=3" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 54bc37ccecd597d815eccfea584a64485fdd0dd859e66b502cca05ffb941fa9c
[INFO] running `Command { std: "docker" "start" "-a" "54bc37ccecd597d815eccfea584a64485fdd0dd859e66b502cca05ffb941fa9c", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.147
[INFO] [stderr]    Compiling num-traits v0.2.16
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling crc32fast v1.3.2
[INFO] [stderr]    Compiling pkg-config v0.3.27
[INFO] [stderr]    Compiling lock_api v0.4.10
[INFO] [stderr]    Compiling parking_lot_core v0.9.8
[INFO] [stderr]    Compiling smallvec v1.11.0
[INFO] [stderr]    Compiling anyhow v1.0.72
[INFO] [stderr]    Compiling cpal v0.15.2
[INFO] [stderr]    Compiling strength_reduce v0.2.4
[INFO] [stderr]    Compiling miniz_oxide v0.7.1
[INFO] [stderr]    Compiling fdeflate v0.3.0
[INFO] [stderr]    Compiling rustfft v6.1.0
[INFO] [stderr]    Compiling minvect v0.1.0
[INFO] [stderr]    Compiling cache-padded v1.3.0
[INFO] [stderr]    Compiling byteorder v0.5.3
[INFO] [stderr]    Compiling dasp_sample v0.11.0
[INFO] [stderr]    Compiling ringbuf v0.2.8
[INFO] [stderr]    Compiling riff-wave v0.1.3
[INFO] [stderr]    Compiling flate2 v1.0.27
[INFO] [stderr]    Compiling alsa-sys v0.3.1
[INFO] [stderr]    Compiling png v0.17.10
[INFO] [stderr]    Compiling num-complex v0.4.4
[INFO] [stderr]    Compiling primal-check v0.3.3
[INFO] [stderr]    Compiling transpose v0.2.2
[INFO] [stderr]    Compiling nix v0.24.3
[INFO] [stderr]    Compiling minimg v0.1.1
[INFO] [stderr]    Compiling parking_lot v0.12.1
[INFO] [stderr]    Compiling alsa v0.7.1
[INFO] [stderr]    Compiling minimix v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `info`
[INFO] [stdout]   --> src/playback/api.rs:85:57
[INFO] [stdout]    |
[INFO] [stdout] 85 |         let output_callback = move |output: &mut [f32], info: &cpal::OutputCallbackInfo| {
[INFO] [stdout]    |                                                         ^^^^ help: if this is intentional, prefix it with an underscore: `_info`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `id`
[INFO] [stdout]   --> src/playback/mixer.rs:51:27
[INFO] [stdout]    |
[INFO] [stdout] 51 |             Command::Stop{id} => panic!("not implemented"),
[INFO] [stdout]    |                           ^^ help: try ignoring the field: `id: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `num_channels`
[INFO] [stdout]   --> src/playback/track.rs:25:59
[INFO] [stdout]    |
[INFO] [stdout] 25 |     pub fn accumulate_buffer(&mut self, data: &mut [f32], num_channels: usize, loaded_sounds: &SoundLibrary) {
[INFO] [stdout]    |                                                           ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_num_channels`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `krand` is never used
[INFO] [stdout]  --> src/rng.rs:9:8
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub fn krand(seed: u32) -> f32 {
[INFO] [stdout]   |        ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new_seeded` and `next_float` are never used
[INFO] [stdout]   --> src/rng.rs:22:12
[INFO] [stdout]    |
[INFO] [stdout] 18 | impl Rng {
[INFO] [stdout]    | -------- associated items in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 22 |     pub fn new_seeded(starting_seed: u32) -> Self {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 25 |     pub fn next_float(&mut self) -> f32 {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `stream` is never read
[INFO] [stdout]   --> src/playback/api.rs:67:5
[INFO] [stdout]    |
[INFO] [stdout] 63 | pub struct Minimixer {
[INFO] [stdout]    |            --------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 67 |     stream: cpal::Stream,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `sample_rate` and `rng` are never read
[INFO] [stdout]   --> src/playback/mixer.rs:19:9
[INFO] [stdout]    |
[INFO] [stdout] 18 | pub struct Mixer {
[INFO] [stdout]    |            ----- fields in this struct
[INFO] [stdout] 19 |     pub sample_rate: usize,
[INFO] [stdout]    |         ^^^^^^^^^^^
[INFO] [stdout] 20 |     pub nchannels: usize,
[INFO] [stdout] 21 |     rng: Rng,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `stop` is never used
[INFO] [stdout]   --> src/playback/mixer.rs:64:12
[INFO] [stdout]    |
[INFO] [stdout] 28 | impl Mixer {
[INFO] [stdout]    | ---------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 64 |     pub fn stop(&mut self, id: TrackHandle) {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `id` is never read
[INFO] [stdout]  --> src/playback/track.rs:6:9
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct Track {
[INFO] [stdout]   |            ----- field in this struct
[INFO] [stdout] 5 |     pub sound: BufferHandle,
[INFO] [stdout] 6 |     pub id: TrackHandle,
[INFO] [stdout]   |         ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/playback/api.rs:117:9
[INFO] [stdout]     |
[INFO] [stdout] 117 |         self.sound_prod.push(s);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 117 |         let _ = self.sound_prod.push(s);
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/playback/api.rs:133:9
[INFO] [stdout]     |
[INFO] [stdout] 133 |         self.command_prod.push(command);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 133 |         let _ = self.command_prod.push(command);
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/playback/api.rs:138:9
[INFO] [stdout]     |
[INFO] [stdout] 138 |         self.command_prod.push(Command::Stop { id });
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 138 |         let _ = self.command_prod.push(Command::Stop { id });
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]    --> tests/example.rs:106:29
[INFO] [stdout]     |
[INFO] [stdout] 106 |             current_freq *= (2.0 / 3.0);
[INFO] [stdout]     |                             ^         ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 106 -             current_freq *= (2.0 / 3.0);
[INFO] [stdout] 106 +             current_freq *= 2.0 / 3.0;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `from`
[INFO] [stdout]   --> tests/example.rs:50:13
[INFO] [stdout]    |
[INFO] [stdout] 50 |         let from = 44100;
[INFO] [stdout]    |             ^^^^ help: if this is intentional, prefix it with an underscore: `_from`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `to`
[INFO] [stdout]   --> tests/example.rs:51:13
[INFO] [stdout]    |
[INFO] [stdout] 51 |         let to = (44100 as f32 * r) as u32;
[INFO] [stdout]    |             ^^ help: if this is intentional, prefix it with an underscore: `_to`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> tests/example.rs:103:13
[INFO] [stdout]     |
[INFO] [stdout] 103 |         for i in 0..130 {
[INFO] [stdout]     |             ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `semitone_ratio` should have an upper case name
[INFO] [stdout]    --> tests/example.rs:188:11
[INFO] [stdout]     |
[INFO] [stdout] 188 |     const semitone_ratio: f32 = 1.059463094359;
[INFO] [stdout]     |           ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_upper_case_globals)]` on by default
[INFO] [stdout] help: convert the identifier to upper case
[INFO] [stdout]     |
[INFO] [stdout] 188 -     const semitone_ratio: f32 = 1.059463094359;
[INFO] [stdout] 188 +     const SEMITONE_RATIO: f32 = 1.059463094359;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sample_rate`
[INFO] [stdout]   --> src/wav.rs:63:10
[INFO] [stdout]    |
[INFO] [stdout] 63 |     let (sample_rate, samples2) = samples2.unwrap();
[INFO] [stdout]    |          ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_sample_rate`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `info`
[INFO] [stdout]   --> src/playback/api.rs:85:57
[INFO] [stdout]    |
[INFO] [stdout] 85 |         let output_callback = move |output: &mut [f32], info: &cpal::OutputCallbackInfo| {
[INFO] [stdout]    |                                                         ^^^^ help: if this is intentional, prefix it with an underscore: `_info`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `id`
[INFO] [stdout]   --> src/playback/mixer.rs:51:27
[INFO] [stdout]    |
[INFO] [stdout] 51 |             Command::Stop{id} => panic!("not implemented"),
[INFO] [stdout]    |                           ^^ help: try ignoring the field: `id: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `num_channels`
[INFO] [stdout]   --> src/playback/track.rs:25:59
[INFO] [stdout]    |
[INFO] [stdout] 25 |     pub fn accumulate_buffer(&mut self, data: &mut [f32], num_channels: usize, loaded_sounds: &SoundLibrary) {
[INFO] [stdout]    |                                                           ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_num_channels`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `krand` is never used
[INFO] [stdout]  --> src/rng.rs:9:8
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub fn krand(seed: u32) -> f32 {
[INFO] [stdout]   |        ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new_seeded` and `next_float` are never used
[INFO] [stdout]   --> src/rng.rs:22:12
[INFO] [stdout]    |
[INFO] [stdout] 18 | impl Rng {
[INFO] [stdout]    | -------- associated items in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 22 |     pub fn new_seeded(starting_seed: u32) -> Self {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 25 |     pub fn next_float(&mut self) -> f32 {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `stream` is never read
[INFO] [stdout]   --> src/playback/api.rs:67:5
[INFO] [stdout]    |
[INFO] [stdout] 63 | pub struct Minimixer {
[INFO] [stdout]    |            --------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 67 |     stream: cpal::Stream,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `sample_rate` and `rng` are never read
[INFO] [stdout]   --> src/playback/mixer.rs:19:9
[INFO] [stdout]    |
[INFO] [stdout] 18 | pub struct Mixer {
[INFO] [stdout]    |            ----- fields in this struct
[INFO] [stdout] 19 |     pub sample_rate: usize,
[INFO] [stdout]    |         ^^^^^^^^^^^
[INFO] [stdout] 20 |     pub nchannels: usize,
[INFO] [stdout] 21 |     rng: Rng,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `stop` is never used
[INFO] [stdout]   --> src/playback/mixer.rs:64:12
[INFO] [stdout]    |
[INFO] [stdout] 28 | impl Mixer {
[INFO] [stdout]    | ---------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 64 |     pub fn stop(&mut self, id: TrackHandle) {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `id` is never read
[INFO] [stdout]  --> src/playback/track.rs:6:9
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct Track {
[INFO] [stdout]   |            ----- field in this struct
[INFO] [stdout] 5 |     pub sound: BufferHandle,
[INFO] [stdout] 6 |     pub id: TrackHandle,
[INFO] [stdout]   |         ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/playback/api.rs:117:9
[INFO] [stdout]     |
[INFO] [stdout] 117 |         self.sound_prod.push(s);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 117 |         let _ = self.sound_prod.push(s);
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/playback/api.rs:133:9
[INFO] [stdout]     |
[INFO] [stdout] 133 |         self.command_prod.push(command);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 133 |         let _ = self.command_prod.push(command);
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/playback/api.rs:138:9
[INFO] [stdout]     |
[INFO] [stdout] 138 |         self.command_prod.push(Command::Stop { id });
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 138 |         let _ = self.command_prod.push(Command::Stop { id });
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 29.03s
[INFO] running `Command { std: "docker" "inspect" "54bc37ccecd597d815eccfea584a64485fdd0dd859e66b502cca05ffb941fa9c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "54bc37ccecd597d815eccfea584a64485fdd0dd859e66b502cca05ffb941fa9c", kill_on_drop: false }`
[INFO] [stdout] 54bc37ccecd597d815eccfea584a64485fdd0dd859e66b502cca05ffb941fa9c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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 -Copt-level=3" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 17d5eb197304d723e08ad17ffc0635aa7cfed14f194347c40b7d16575d7ed7c4
[INFO] running `Command { std: "docker" "start" "-a" "17d5eb197304d723e08ad17ffc0635aa7cfed14f194347c40b7d16575d7ed7c4", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `info`
[INFO] [stderr]   --> src/playback/api.rs:85:57
[INFO] [stderr]    |
[INFO] [stderr] 85 |         let output_callback = move |output: &mut [f32], info: &cpal::OutputCallbackInfo| {
[INFO] [stderr]    |                                                         ^^^^ help: if this is intentional, prefix it with an underscore: `_info`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `id`
[INFO] [stderr]   --> src/playback/mixer.rs:51:27
[INFO] [stderr]    |
[INFO] [stderr] 51 |             Command::Stop{id} => panic!("not implemented"),
[INFO] [stderr]    |                           ^^ help: try ignoring the field: `id: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `num_channels`
[INFO] [stderr]   --> src/playback/track.rs:25:59
[INFO] [stderr]    |
[INFO] [stderr] 25 |     pub fn accumulate_buffer(&mut self, data: &mut [f32], num_channels: usize, loaded_sounds: &SoundLibrary) {
[INFO] [stderr]    |                                                           ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_num_channels`
[INFO] [stderr] 
[INFO] [stderr] warning: function `krand` is never used
[INFO] [stderr]  --> src/rng.rs:9:8
[INFO] [stderr]   |
[INFO] [stderr] 9 | pub fn krand(seed: u32) -> f32 {
[INFO] [stderr]   |        ^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated items `new_seeded` and `next_float` are never used
[INFO] [stderr]   --> src/rng.rs:22:12
[INFO] [stderr]    |
[INFO] [stderr] 18 | impl Rng {
[INFO] [stderr]    | -------- associated items in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 22 |     pub fn new_seeded(starting_seed: u32) -> Self {
[INFO] [stderr]    |            ^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 25 |     pub fn next_float(&mut self) -> f32 {
[INFO] [stderr]    |            ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field `stream` is never read
[INFO] [stderr]   --> src/playback/api.rs:67:5
[INFO] [stderr]    |
[INFO] [stderr] 63 | pub struct Minimixer {
[INFO] [stderr]    |            --------- field in this struct
[INFO] [stderr] ...
[INFO] [stderr] 67 |     stream: cpal::Stream,
[INFO] [stderr]    |     ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: fields `sample_rate` and `rng` are never read
[INFO] [stderr]   --> src/playback/mixer.rs:19:9
[INFO] [stderr]    |
[INFO] [stderr] 18 | pub struct Mixer {
[INFO] [stderr]    |            ----- fields in this struct
[INFO] [stderr] 19 |     pub sample_rate: usize,
[INFO] [stderr]    |         ^^^^^^^^^^^
[INFO] [stderr] 20 |     pub nchannels: usize,
[INFO] [stderr] 21 |     rng: Rng,
[INFO] [stderr]    |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method `stop` is never used
[INFO] [stderr]   --> src/playback/mixer.rs:64:12
[INFO] [stderr]    |
[INFO] [stderr] 28 | impl Mixer {
[INFO] [stderr]    | ---------- method in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 64 |     pub fn stop(&mut self, id: TrackHandle) {
[INFO] [stderr]    |            ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field `id` is never read
[INFO] [stderr]  --> src/playback/track.rs:6:9
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub struct Track {
[INFO] [stderr]   |            ----- field in this struct
[INFO] [stderr] 5 |     pub sound: BufferHandle,
[INFO] [stderr] 6 |     pub id: TrackHandle,
[INFO] [stderr]   |         ^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> src/playback/api.rs:117:9
[INFO] [stderr]     |
[INFO] [stderr] 117 |         self.sound_prod.push(s);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 117 |         let _ = self.sound_prod.push(s);
[INFO] [stderr]     |         +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> src/playback/api.rs:133:9
[INFO] [stderr]     |
[INFO] [stderr] 133 |         self.command_prod.push(command);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 133 |         let _ = self.command_prod.push(command);
[INFO] [stderr]     |         +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> src/playback/api.rs:138:9
[INFO] [stderr]     |
[INFO] [stderr] 138 |         self.command_prod.push(Command::Stop { id });
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 138 |         let _ = self.command_prod.push(Command::Stop { id });
[INFO] [stderr]     |         +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: `minimix` (lib) generated 12 warnings
[INFO] [stderr] warning: unnecessary parentheses around assigned value
[INFO] [stderr]    --> tests/example.rs:106:29
[INFO] [stderr]     |
[INFO] [stderr] 106 |             current_freq *= (2.0 / 3.0);
[INFO] [stderr]     |                             ^         ^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 106 -             current_freq *= (2.0 / 3.0);
[INFO] [stderr] 106 +             current_freq *= 2.0 / 3.0;
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `from`
[INFO] [stderr]   --> tests/example.rs:50:13
[INFO] [stderr]    |
[INFO] [stderr] 50 |         let from = 44100;
[INFO] [stderr]    |             ^^^^ help: if this is intentional, prefix it with an underscore: `_from`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `to`
[INFO] [stderr]   --> tests/example.rs:51:13
[INFO] [stderr]    |
[INFO] [stderr] 51 |         let to = (44100 as f32 * r) as u32;
[INFO] [stderr]    |             ^^ help: if this is intentional, prefix it with an underscore: `_to`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]    --> tests/example.rs:103:13
[INFO] [stderr]     |
[INFO] [stderr] 103 |         for i in 0..130 {
[INFO] [stderr]     |             ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: constant `semitone_ratio` should have an upper case name
[INFO] [stderr]    --> tests/example.rs:188:11
[INFO] [stderr]     |
[INFO] [stderr] 188 |     const semitone_ratio: f32 = 1.059463094359;
[INFO] [stderr]     |           ^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(non_upper_case_globals)]` on by default
[INFO] [stderr] help: convert the identifier to upper case
[INFO] [stderr]     |
[INFO] [stderr] 188 -     const semitone_ratio: f32 = 1.059463094359;
[INFO] [stderr] 188 +     const SEMITONE_RATIO: f32 = 1.059463094359;
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `sample_rate`
[INFO] [stderr]   --> src/wav.rs:63:10
[INFO] [stderr]    |
[INFO] [stderr] 63 |     let (sample_rate, samples2) = samples2.unwrap();
[INFO] [stderr]    |          ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_sample_rate`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `info`
[INFO] [stderr]   --> src/playback/api.rs:85:57
[INFO] [stderr]    |
[INFO] [stderr] 85 |         let output_callback = move |output: &mut [f32], info: &cpal::OutputCallbackInfo| {
[INFO] [stderr]    |                                                         ^^^^ help: if this is intentional, prefix it with an underscore: `_info`
[INFO] [stderr] 
[INFO] [stderr] warning: `minimix` (test "example") generated 5 warnings (run `cargo fix --test "example"` to apply 2 suggestions)
[INFO] [stderr] warning: `minimix` (lib test) generated 13 warnings (11 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.20s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/minimix-9733b430b7573aeb)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test wav::test_save_load ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- wav::test_save_load stdout ----
[INFO] [stdout] 
[INFO] [stdout] thread 'wav::test_save_load' panicked at src/wav.rs:47:38:
[INFO] [stdout] called `Result::unwrap()` on an `Err` value: Os { code: 30, kind: ReadOnlyFilesystem, message: "Read-only file system" }
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x55d342d7d362 - std::backtrace_rs::backtrace::libunwind::trace::h73a647620bf1c49d
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stdout]    1:     0x55d342d7d362 - std::backtrace_rs::backtrace::trace_unsynchronized::hd4d513ed96cb3cb1
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stdout]    2:     0x55d342d7d362 - std::sys::backtrace::_print_fmt::h61bb95f7476aafa5
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/sys/backtrace.rs:66:9
[INFO] [stdout]    3:     0x55d342d7d362 - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::ha2e7e3a01df69042
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/sys/backtrace.rs:39:26
[INFO] [stdout]    4:     0x55d342da2ea3 - core::fmt::rt::Argument::fmt::hf14163372f0f9a76
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/core/src/fmt/rt.rs:173:76
[INFO] [stdout]    5:     0x55d342da2ea3 - core::fmt::write::h7cb8f63788cd01d2
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/core/src/fmt/mod.rs:1465:25
[INFO] [stdout]    6:     0x55d342d7a2f3 - std::io::default_write_fmt::h9ed739ccee8a150c
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/io/mod.rs:639:11
[INFO] [stdout]    7:     0x55d342d7a2f3 - std::io::Write::write_fmt::h1c0a32da913b32f1
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/io/mod.rs:1954:13
[INFO] [stdout]    8:     0x55d342d7d1b2 - std::sys::backtrace::BacktraceLock::print::h3ec4d7883eb25e61
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/sys/backtrace.rs:42:9
[INFO] [stdout]    9:     0x55d342d7e8cc - std::panicking::default_hook::{{closure}}::h29548987efd832cb
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/panicking.rs:300:27
[INFO] [stdout]   10:     0x55d342d7e722 - std::panicking::default_hook::ha25170a15c643514
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/panicking.rs:324:9
[INFO] [stdout]   11:     0x55d342d46684 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h562adeecbf43c420
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/alloc/src/boxed.rs:1985:9
[INFO] [stdout]   12:     0x55d342d46684 - test::test_main_with_exit_callback::{{closure}}::h97dd2a879d27e0e4
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/test/src/lib.rs:145:21
[INFO] [stdout]   13:     0x55d342d7f2ab - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h7e85cbdbda26fdb7
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/alloc/src/boxed.rs:1985:9
[INFO] [stdout]   14:     0x55d342d7f2ab - std::panicking::rust_panic_with_hook::h0d81afcd829aa24b
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/panicking.rs:841:13
[INFO] [stdout]   15:     0x55d342d7f07a - std::panicking::begin_panic_handler::{{closure}}::hc84a33f1202346cf
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/panicking.rs:706:13
[INFO] [stdout]   16:     0x55d342d7d859 - std::sys::backtrace::__rust_end_short_backtrace::h373067a14f6c59aa
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/sys/backtrace.rs:168:18
[INFO] [stdout]   17:     0x55d342d7ed0d - __rustc[beb0385846a06d21]::rust_begin_unwind
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/panicking.rs:697:5
[INFO] [stdout]   18:     0x55d342da0fa0 - core::panicking::panic_fmt::ha33fa2ae772efba9
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/core/src/panicking.rs:75:14
[INFO] [stdout]   19:     0x55d342da1346 - core::result::unwrap_failed::hfbbd3c78a73fea3d
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/core/src/result.rs:1761:5
[INFO] [stdout]   20:     0x55d342d0c657 - core::result::Result<T,E>::unwrap::h51e72ed36c438307
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/core/src/result.rs:1167:23
[INFO] [stdout]   21:     0x55d342d0c657 - minimix::wav::write_wav::hf2c1923517a9375c
[INFO] [stdout]                                at /opt/rustwide/workdir/src/wav.rs:47:38
[INFO] [stdout]   22:     0x55d342d0c657 - minimix::wav::test_save_load::h9a5ef8109627276a
[INFO] [stdout]                                at /opt/rustwide/workdir/src/wav.rs:59:5
[INFO] [stdout]   23:     0x55d342d0b699 - minimix::wav::test_save_load::{{closure}}::hb06ccc964a03c665
[INFO] [stdout]                                at /opt/rustwide/workdir/src/wav.rs:56:24
[INFO] [stdout]   24:     0x55d342d0b699 - core::ops::function::FnOnce::call_once::h89e20bd2ddb18571
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   25:     0x55d342d4bdbb - core::ops::function::FnOnce::call_once::hf84b9c3d864a6959
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   26:     0x55d342d4bdbb - test::__rust_begin_short_backtrace::h5724e31441c16fcb
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/test/src/lib.rs:648:18
[INFO] [stdout]   27:     0x55d342d4affe - test::run_test_in_process::{{closure}}::hbc28c9aa91793d7d
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/test/src/lib.rs:671:74
[INFO] [stdout]   28:     0x55d342d4affe - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::hc17b0e238c0f8f3e
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/core/src/panic/unwind_safe.rs:272:9
[INFO] [stdout]   29:     0x55d342d4affe - std::panicking::catch_unwind::do_call::hcdbce0d6dd6c83ce
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/panicking.rs:589:40
[INFO] [stdout]   30:     0x55d342d4affe - std::panicking::catch_unwind::h9477967ceea044e8
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/panicking.rs:552:19
[INFO] [stdout]   31:     0x55d342d4affe - std::panic::catch_unwind::h616a2e249da12e16
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/panic.rs:359:14
[INFO] [stdout]   32:     0x55d342d4affe - test::run_test_in_process::h2758deb0f2e54430
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/test/src/lib.rs:671:27
[INFO] [stdout]   33:     0x55d342d4affe - test::run_test::{{closure}}::habe5cd2564b18aaa
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/test/src/lib.rs:592:43
[INFO] [stdout]   34:     0x55d342d0eba4 - test::run_test::{{closure}}::h9a0a6928f1a15421
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/test/src/lib.rs:622:41
[INFO] [stdout]   35:     0x55d342d0eba4 - std::sys::backtrace::__rust_begin_short_backtrace::hd68b5332434a22ca
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/sys/backtrace.rs:152:18
[INFO] [stdout]   36:     0x55d342d1254a - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::h264ddcc3098eacae
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/thread/mod.rs:559:17
[INFO] [stdout]   37:     0x55d342d1254a - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h9fa39489749d6f3c
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/core/src/panic/unwind_safe.rs:272:9
[INFO] [stdout]   38:     0x55d342d1254a - std::panicking::catch_unwind::do_call::hb9a1944b9f85100f
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/panicking.rs:589:40
[INFO] [stdout]   39:     0x55d342d1254a - std::panicking::catch_unwind::h0c6f100786c0dad8
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/panicking.rs:552:19
[INFO] [stdout]   40:     0x55d342d1254a - std::panic::catch_unwind::hf6084e2723385823
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/panic.rs:359:14
[INFO] [stdout]   41:     0x55d342d1254a - std::thread::Builder::spawn_unchecked_::{{closure}}::hf0af58ce658143ad
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/thread/mod.rs:557:30
[INFO] [stdout]   42:     0x55d342d1254a - core::ops::function::FnOnce::call_once{{vtable.shim}}::h88a14f9b2e79f9de
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   43:     0x55d342d82207 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::hf31256ba38644b65
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/alloc/src/boxed.rs:1971:9
[INFO] [stdout]   44:     0x55d342d82207 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h100ad77f3448041b
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/alloc/src/boxed.rs:1971:9
[INFO] [stdout]   45:     0x55d342d82207 - std::sys::pal::unix::thread::Thread::new::thread_start::h1a22ded422ce395b
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/sys/pal/unix/thread.rs:97:17
[INFO] [stdout]   46:     0x7b20cede5aa4 - <unknown>
[INFO] [stdout]   47:     0x7b20cee72a34 - clone
[INFO] [stdout]   48:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     wav::test_save_load
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.05s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass `--lib`
[INFO] running `Command { std: "docker" "inspect" "17d5eb197304d723e08ad17ffc0635aa7cfed14f194347c40b7d16575d7ed7c4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "17d5eb197304d723e08ad17ffc0635aa7cfed14f194347c40b7d16575d7ed7c4", kill_on_drop: false }`
[INFO] [stdout] 17d5eb197304d723e08ad17ffc0635aa7cfed14f194347c40b7d16575d7ed7c4
