[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 try#db823df02fd0c2cf67b43025ac3fef3f2d743245 for pr-150681
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkennoath%2Fminimix" "/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/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-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/kennoath/minimix on toolchain db823df02fd0c2cf67b43025ac3fef3f2d743245
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+db823df02fd0c2cf67b43025ac3fef3f2d743245" "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" "+db823df02fd0c2cf67b43025ac3fef3f2d743245" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+db823df02fd0c2cf67b43025ac3fef3f2d743245" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 74958564483f4c5ba8ba21a998c6d55e25a0860fae5d76e40403e2748a36bb11
[INFO] running `Command { std: "docker" "start" "-a" "74958564483f4c5ba8ba21a998c6d55e25a0860fae5d76e40403e2748a36bb11", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "74958564483f4c5ba8ba21a998c6d55e25a0860fae5d76e40403e2748a36bb11", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "74958564483f4c5ba8ba21a998c6d55e25a0860fae5d76e40403e2748a36bb11", kill_on_drop: false }`
[INFO] [stdout] 74958564483f4c5ba8ba21a998c6d55e25a0860fae5d76e40403e2748a36bb11
[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" "-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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+db823df02fd0c2cf67b43025ac3fef3f2d743245" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bff7074cf4fa86ff30c017ee1104f1bebc502bc22d77f0868005721bc5bbea6b
[INFO] running `Command { std: "docker" "start" "-a" "bff7074cf4fa86ff30c017ee1104f1bebc502bc22d77f0868005721bc5bbea6b", 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)]` (part of `#[warn(unused)]`) 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 0.28s
[INFO] running `Command { std: "docker" "inspect" "bff7074cf4fa86ff30c017ee1104f1bebc502bc22d77f0868005721bc5bbea6b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bff7074cf4fa86ff30c017ee1104f1bebc502bc22d77f0868005721bc5bbea6b", kill_on_drop: false }`
[INFO] [stdout] bff7074cf4fa86ff30c017ee1104f1bebc502bc22d77f0868005721bc5bbea6b
[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" "-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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+db823df02fd0c2cf67b43025ac3fef3f2d743245" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c165dd2d773e941dfdeec3fc5e3b4b55030215de3575d5eee3a2ff70401d7e8c
[INFO] running `Command { std: "docker" "start" "-a" "c165dd2d773e941dfdeec3fc5e3b4b55030215de3575d5eee3a2ff70401d7e8c", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.147
[INFO] [stderr]    Compiling num-traits v0.2.16
[INFO] [stderr]    Compiling anyhow v1.0.72
[INFO] [stderr]    Compiling cpal v0.15.2
[INFO] [stderr]    Compiling alsa-sys v0.3.1
[INFO] [stderr]    Compiling fdeflate v0.3.0
[INFO] [stderr]    Compiling rustfft v6.1.0
[INFO] [stderr]    Compiling byteorder v0.5.3
[INFO] [stderr]    Compiling minvect v0.1.0
[INFO] [stderr]    Compiling dasp_sample v0.11.0
[INFO] [stderr]    Compiling cache-padded v1.3.0
[INFO] [stderr]    Compiling flate2 v1.0.27
[INFO] [stderr]    Compiling ringbuf v0.2.8
[INFO] [stderr]    Compiling riff-wave v0.1.3
[INFO] [stderr]    Compiling png v0.17.10
[INFO] [stderr]    Compiling minimg v0.1.1
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling num-complex v0.4.4
[INFO] [stderr]    Compiling nix v0.24.3
[INFO] [stderr]    Compiling parking_lot_core v0.9.8
[INFO] [stderr]    Compiling transpose v0.2.2
[INFO] [stderr]    Compiling primal-check v0.3.3
[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)]` (part of `#[warn(unused)]`) 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)]` (part of `#[warn(unused)]`) 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)]` (part of `#[warn(unused)]`) 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)]` (part of `#[warn(unused)]`) 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: `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)]` (part of `#[warn(unused)]`) 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)]` (part of `#[warn(unused)]`) 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)]` (part of `#[warn(unused)]`) 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: 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)]` (part of `#[warn(unused)]`) 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)]` (part of `#[warn(nonstandard_style)]`) 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] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 10.62s
[INFO] running `Command { std: "docker" "inspect" "c165dd2d773e941dfdeec3fc5e3b4b55030215de3575d5eee3a2ff70401d7e8c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c165dd2d773e941dfdeec3fc5e3b4b55030215de3575d5eee3a2ff70401d7e8c", kill_on_drop: false }`
[INFO] [stdout] c165dd2d773e941dfdeec3fc5e3b4b55030215de3575d5eee3a2ff70401d7e8c
[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" "-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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+db823df02fd0c2cf67b43025ac3fef3f2d743245" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 34d55deaefbd87e25ce22a552519745b5ca95438115fb371d76924c86b715483
[INFO] running `Command { std: "docker" "start" "-a" "34d55deaefbd87e25ce22a552519745b5ca95438115fb371d76924c86b715483", 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)]` (part of `#[warn(unused)]`) 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)]` (part of `#[warn(unused)]`) 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)]` (part of `#[warn(unused)]`) 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 (run `cargo fix --lib -p minimix` to apply 3 suggestions)
[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)]` (part of `#[warn(unused)]`) 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: 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)]` (part of `#[warn(unused)]`) 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)]` (part of `#[warn(unused)]`) 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)]` (part of `#[warn(nonstandard_style)]`) 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: `minimix` (lib test) generated 13 warnings (11 duplicates) (run `cargo fix --lib -p minimix --tests` to apply 2 suggestions)
[INFO] [stderr] warning: `minimix` (test "example") generated 5 warnings (run `cargo fix --test "example" -p minimix` to apply 5 suggestions)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.18s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/minimix-d87fe87e1da18643)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stderr] error: test failed, to rerun pass `--lib`
[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' (24) 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:     0x55e4eeae59e2 - std[3f03f8b59f91bef1]::backtrace_rs::backtrace::libunwind::trace
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stdout]    1:     0x55e4eeae59e2 - std[3f03f8b59f91bef1]::backtrace_rs::backtrace::trace_unsynchronized::<std[3f03f8b59f91bef1]::sys::backtrace::_print_fmt::{closure#1}>
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stdout]    2:     0x55e4eeae59e2 - std[3f03f8b59f91bef1]::sys::backtrace::_print_fmt
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/std/src/sys/backtrace.rs:74:9
[INFO] [stdout]    3:     0x55e4eeae59e2 - <<std[3f03f8b59f91bef1]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[585f66e14d78f9ba]::fmt::Display>::fmt
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/std/src/sys/backtrace.rs:44:26
[INFO] [stdout]    4:     0x55e4eeafae6a - <core[585f66e14d78f9ba]::fmt::rt::Argument>::fmt
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/core/src/fmt/rt.rs:152:76
[INFO] [stdout]    5:     0x55e4eeafae6a - core[585f66e14d78f9ba]::fmt::write
[INFO] [stdout]    6:     0x55e4eeaea946 - std[3f03f8b59f91bef1]::io::default_write_fmt::<alloc[15e7b27aba85d2e2]::vec::Vec<u8>>
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/std/src/io/mod.rs:639:11
[INFO] [stdout]    7:     0x55e4eeaea946 - <alloc[15e7b27aba85d2e2]::vec::Vec<u8> as std[3f03f8b59f91bef1]::io::Write>::write_fmt
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/std/src/io/mod.rs:1994:13
[INFO] [stdout]    8:     0x55e4eeac406f - <std[3f03f8b59f91bef1]::sys::backtrace::BacktraceLock>::print
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/std/src/sys/backtrace.rs:47:9
[INFO] [stdout]    9:     0x55e4eeac406f - std[3f03f8b59f91bef1]::panicking::default_hook::{closure#0}
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/std/src/panicking.rs:292:27
[INFO] [stdout]   10:     0x55e4eeaddc49 - std[3f03f8b59f91bef1]::panicking::default_hook
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/std/src/panicking.rs:316:9
[INFO] [stdout]   11:     0x55e4eea7650e - <alloc[15e7b27aba85d2e2]::boxed::Box<dyn for<'a, 'b> core[585f66e14d78f9ba]::ops::function::Fn<(&'a std[3f03f8b59f91bef1]::panic::PanicHookInfo<'b>,), Output = ()> + core[585f66e14d78f9ba]::marker::Sync + core[585f66e14d78f9ba]::marker::Send> as core[585f66e14d78f9ba]::ops::function::Fn<(&std[3f03f8b59f91bef1]::panic::PanicHookInfo,)>>::call
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/alloc/src/boxed.rs:2220:9
[INFO] [stdout]   12:     0x55e4eea7650e - test[30224e0cb089acd2]::test_main_with_exit_callback::<test[30224e0cb089acd2]::test_main::{closure#0}>::{closure#0}
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/test/src/lib.rs:145:21
[INFO] [stdout]   13:     0x55e4eeadde02 - <alloc[15e7b27aba85d2e2]::boxed::Box<dyn for<'a, 'b> core[585f66e14d78f9ba]::ops::function::Fn<(&'a std[3f03f8b59f91bef1]::panic::PanicHookInfo<'b>,), Output = ()> + core[585f66e14d78f9ba]::marker::Sync + core[585f66e14d78f9ba]::marker::Send> as core[585f66e14d78f9ba]::ops::function::Fn<(&std[3f03f8b59f91bef1]::panic::PanicHookInfo,)>>::call
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/alloc/src/boxed.rs:2220:9
[INFO] [stdout]   14:     0x55e4eeadde02 - std[3f03f8b59f91bef1]::panicking::panic_with_hook
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/std/src/panicking.rs:833:13
[INFO] [stdout]   15:     0x55e4eeac4128 - std[3f03f8b59f91bef1]::panicking::panic_handler::{closure#0}
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/std/src/panicking.rs:698:13
[INFO] [stdout]   16:     0x55e4eeab92e9 - std[3f03f8b59f91bef1]::sys::backtrace::__rust_end_short_backtrace::<std[3f03f8b59f91bef1]::panicking::panic_handler::{closure#0}, !>
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/std/src/sys/backtrace.rs:182:18
[INFO] [stdout]   17:     0x55e4eeac4f7d - __rustc[caa99d26c7bae192]::rust_begin_unwind
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/std/src/panicking.rs:689:5
[INFO] [stdout]   18:     0x55e4eeafb4dc - core[585f66e14d78f9ba]::panicking::panic_fmt
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/core/src/panicking.rs:80:14
[INFO] [stdout]   19:     0x55e4eeafb2b2 - core[585f66e14d78f9ba]::result::unwrap_failed
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/core/src/result.rs:1867:5
[INFO] [stdout]   20:     0x55e4eea664c6 - <core[585f66e14d78f9ba]::result::Result<std[3f03f8b59f91bef1]::fs::File, std[3f03f8b59f91bef1]::io::error::Error>>::unwrap
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/core/src/result.rs:1233:23
[INFO] [stdout]   21:     0x55e4eea664c6 - minimix[49a94912eb7a4959]::wav::write_wav
[INFO] [stdout]                                at /opt/rustwide/workdir/src/wav.rs:47:38
[INFO] [stdout]   22:     0x55e4eea668b3 - minimix[49a94912eb7a4959]::wav::test_save_load
[INFO] [stdout]                                at /opt/rustwide/workdir/src/wav.rs:59:5
[INFO] [stdout]   23:     0x55e4eea64e17 - minimix[49a94912eb7a4959]::wav::test_save_load::{closure#0}
[INFO] [stdout]                                at /opt/rustwide/workdir/src/wav.rs:56:24
[INFO] [stdout]   24:     0x55e4eea68fb6 - <minimix[49a94912eb7a4959]::wav::test_save_load::{closure#0} as core[585f66e14d78f9ba]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   25:     0x55e4eea6a8bb - <fn() -> core[585f66e14d78f9ba]::result::Result<(), alloc[15e7b27aba85d2e2]::string::String> as core[585f66e14d78f9ba]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   26:     0x55e4eea6a8bb - test[30224e0cb089acd2]::__rust_begin_short_backtrace::<core[585f66e14d78f9ba]::result::Result<(), alloc[15e7b27aba85d2e2]::string::String>, fn() -> core[585f66e14d78f9ba]::result::Result<(), alloc[15e7b27aba85d2e2]::string::String>>
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/test/src/lib.rs:663:18
[INFO] [stdout]   27:     0x55e4eea7711a - test[30224e0cb089acd2]::run_test_in_process::{closure#0}
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/test/src/lib.rs:686:74
[INFO] [stdout]   28:     0x55e4eea7711a - <core[585f66e14d78f9ba]::panic::unwind_safe::AssertUnwindSafe<test[30224e0cb089acd2]::run_test_in_process::{closure#0}> as core[585f66e14d78f9ba]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/core/src/panic/unwind_safe.rs:274:9
[INFO] [stdout]   29:     0x55e4eea7711a - std[3f03f8b59f91bef1]::panicking::catch_unwind::do_call::<core[585f66e14d78f9ba]::panic::unwind_safe::AssertUnwindSafe<test[30224e0cb089acd2]::run_test_in_process::{closure#0}>, core[585f66e14d78f9ba]::result::Result<(), alloc[15e7b27aba85d2e2]::string::String>>
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/std/src/panicking.rs:581:40
[INFO] [stdout]   30:     0x55e4eea7711a - std[3f03f8b59f91bef1]::panicking::catch_unwind::<core[585f66e14d78f9ba]::result::Result<(), alloc[15e7b27aba85d2e2]::string::String>, core[585f66e14d78f9ba]::panic::unwind_safe::AssertUnwindSafe<test[30224e0cb089acd2]::run_test_in_process::{closure#0}>>
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/std/src/panicking.rs:544:19
[INFO] [stdout]   31:     0x55e4eea7711a - std[3f03f8b59f91bef1]::panic::catch_unwind::<core[585f66e14d78f9ba]::panic::unwind_safe::AssertUnwindSafe<test[30224e0cb089acd2]::run_test_in_process::{closure#0}>, core[585f66e14d78f9ba]::result::Result<(), alloc[15e7b27aba85d2e2]::string::String>>
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/std/src/panic.rs:359:14
[INFO] [stdout]   32:     0x55e4eea7711a - test[30224e0cb089acd2]::run_test_in_process
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/test/src/lib.rs:686:27
[INFO] [stdout]   33:     0x55e4eea7711a - test[30224e0cb089acd2]::run_test::{closure#0}
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/test/src/lib.rs:607:43
[INFO] [stdout]   34:     0x55e4eea715e4 - test[30224e0cb089acd2]::run_test::{closure#1}
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/test/src/lib.rs:637:41
[INFO] [stdout]   35:     0x55e4eea715e4 - std[3f03f8b59f91bef1]::sys::backtrace::__rust_begin_short_backtrace::<test[30224e0cb089acd2]::run_test::{closure#1}, ()>
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/std/src/sys/backtrace.rs:166:18
[INFO] [stdout]   36:     0x55e4eea79c12 - std[3f03f8b59f91bef1]::thread::lifecycle::spawn_unchecked::<test[30224e0cb089acd2]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/std/src/thread/lifecycle.rs:91:13
[INFO] [stdout]   37:     0x55e4eea79c12 - <core[585f66e14d78f9ba]::panic::unwind_safe::AssertUnwindSafe<std[3f03f8b59f91bef1]::thread::lifecycle::spawn_unchecked<test[30224e0cb089acd2]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}> as core[585f66e14d78f9ba]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/core/src/panic/unwind_safe.rs:274:9
[INFO] [stdout]   38:     0x55e4eea79c12 - std[3f03f8b59f91bef1]::panicking::catch_unwind::do_call::<core[585f66e14d78f9ba]::panic::unwind_safe::AssertUnwindSafe<std[3f03f8b59f91bef1]::thread::lifecycle::spawn_unchecked<test[30224e0cb089acd2]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>, ()>
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/std/src/panicking.rs:581:40
[INFO] [stdout]   39:     0x55e4eea79c12 - std[3f03f8b59f91bef1]::panicking::catch_unwind::<(), core[585f66e14d78f9ba]::panic::unwind_safe::AssertUnwindSafe<std[3f03f8b59f91bef1]::thread::lifecycle::spawn_unchecked<test[30224e0cb089acd2]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>>
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/std/src/panicking.rs:544:19
[INFO] [stdout]   40:     0x55e4eea79c12 - std[3f03f8b59f91bef1]::panic::catch_unwind::<core[585f66e14d78f9ba]::panic::unwind_safe::AssertUnwindSafe<std[3f03f8b59f91bef1]::thread::lifecycle::spawn_unchecked<test[30224e0cb089acd2]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>, ()>
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/std/src/panic.rs:359:14
[INFO] [stdout]   41:     0x55e4eea79c12 - std[3f03f8b59f91bef1]::thread::lifecycle::spawn_unchecked::<test[30224e0cb089acd2]::run_test::{closure#1}, ()>::{closure#1}
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/std/src/thread/lifecycle.rs:89:26
[INFO] [stdout]   42:     0x55e4eea79c12 - <std[3f03f8b59f91bef1]::thread::lifecycle::spawn_unchecked<test[30224e0cb089acd2]::run_test::{closure#1}, ()>::{closure#1} as core[585f66e14d78f9ba]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   43:     0x55e4eeae528f - <alloc[15e7b27aba85d2e2]::boxed::Box<dyn core[585f66e14d78f9ba]::ops::function::FnOnce<(), Output = ()> + core[585f66e14d78f9ba]::marker::Send> as core[585f66e14d78f9ba]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/alloc/src/boxed.rs:2206:9
[INFO] [stdout]   44:     0x55e4eeae528f - <std[3f03f8b59f91bef1]::sys::thread::unix::Thread>::new::thread_start
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/std/src/sys/thread/unix.rs:119:17
[INFO] [stdout]   45:     0x72338bc39aa4 - <unknown>
[INFO] [stdout]   46:     0x72338bcc6a64 - clone
[INFO] [stdout]   47:                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 0.04s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "34d55deaefbd87e25ce22a552519745b5ca95438115fb371d76924c86b715483", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "34d55deaefbd87e25ce22a552519745b5ca95438115fb371d76924c86b715483", kill_on_drop: false }`
[INFO] [stdout] 34d55deaefbd87e25ce22a552519745b5ca95438115fb371d76924c86b715483
