[INFO] cloning repository https://github.com/shanmiteko/sample_synth
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/shanmiteko/sample_synth" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshanmiteko%2Fsample_synth", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshanmiteko%2Fsample_synth'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b4bc7eecf11b0883b7203ac66d75c418966a99be
[INFO] checking shanmiteko/sample_synth against try#dd2d87b6cc31907ae305875eb6be399783dc0256 for pr-143929
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshanmiteko%2Fsample_synth" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/shanmiteko/sample_synth
[INFO] finished tweaking git repo https://github.com/shanmiteko/sample_synth
[INFO] tweaked toml for git repo https://github.com/shanmiteko/sample_synth written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/shanmiteko/sample_synth on toolchain dd2d87b6cc31907ae305875eb6be399783dc0256
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+dd2d87b6cc31907ae305875eb6be399783dc0256" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/shanmiteko/sample_synth 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" "+dd2d87b6cc31907ae305875eb6be399783dc0256" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:e8955075918b6d00525c617f7c34ee2595c70db70b3cf844dc875e4d3604499b" "/opt/rustwide/cargo-home/bin/cargo" "+dd2d87b6cc31907ae305875eb6be399783dc0256" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 79e3f41456b6d45444ec944f887fb572528d277943e0b8dbffbf8f07e4e93132
[INFO] running `Command { std: "docker" "start" "-a" "79e3f41456b6d45444ec944f887fb572528d277943e0b8dbffbf8f07e4e93132", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "79e3f41456b6d45444ec944f887fb572528d277943e0b8dbffbf8f07e4e93132", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "79e3f41456b6d45444ec944f887fb572528d277943e0b8dbffbf8f07e4e93132", kill_on_drop: false }`
[INFO] [stdout] 79e3f41456b6d45444ec944f887fb572528d277943e0b8dbffbf8f07e4e93132
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:e8955075918b6d00525c617f7c34ee2595c70db70b3cf844dc875e4d3604499b" "/opt/rustwide/cargo-home/bin/cargo" "+dd2d87b6cc31907ae305875eb6be399783dc0256" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 223adca555500d2644c3b07e1d3d8dca67cca229fecf88b7ed4720362c6c4e7f
[INFO] running `Command { std: "docker" "start" "-a" "223adca555500d2644c3b07e1d3d8dca67cca229fecf88b7ed4720362c6c4e7f", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.112
[INFO] [stderr]    Compiling proc-macro2 v1.0.34
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling pkg-config v0.3.24
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling syn v1.0.82
[INFO] [stderr]    Compiling parking_lot_core v0.8.5
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]     Checking smallvec v1.7.0
[INFO] [stderr]    Compiling cpal v0.13.4
[INFO] [stderr]     Checking instant v0.1.12
[INFO] [stderr]     Checking lock_api v0.4.5
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]    Compiling alsa-sys v0.3.1
[INFO] [stderr]    Compiling quote v1.0.10
[INFO] [stderr]     Checking nix v0.20.2
[INFO] [stderr]     Checking parking_lot v0.11.2
[INFO] [stderr]    Compiling thiserror-impl v1.0.30
[INFO] [stderr]     Checking thiserror v1.0.30
[INFO] [stderr]     Checking alsa v0.5.0
[INFO] [stderr]     Checking simple_synth v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `OutputStreamParams` is never constructed
[INFO] [stdout]  --> src/audio.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct OutputStreamParams {
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `AudioRenderer` is never constructed
[INFO] [stdout]   --> src/audio.rs:29:8
[INFO] [stdout]    |
[INFO] [stdout] 29 | struct AudioRenderer {}
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new` and `render_audio` are never used
[INFO] [stdout]   --> src/audio.rs:32:8
[INFO] [stdout]    |
[INFO] [stdout] 31 | impl AudioRenderer {
[INFO] [stdout]    | ------------------ associated items in this implementation
[INFO] [stdout] 32 |     fn new() -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 36 |     fn render_audio<S: Sample>(&mut self, buffer: &mut [S]) {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `AudioOut` is never constructed
[INFO] [stdout]   --> src/audio.rs:43:8
[INFO] [stdout]    |
[INFO] [stdout] 43 | struct AudioOut {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `start_stream` and `create_stream` are never used
[INFO] [stdout]   --> src/audio.rs:48:8
[INFO] [stdout]    |
[INFO] [stdout] 47 | impl AudioOut {
[INFO] [stdout]    | ------------- methods in this implementation
[INFO] [stdout] 48 |     fn start_stream(self, output_stream_params: OutputStreamParams) -> Stream {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 64 |     fn create_stream<S: Sample>(mut self, device: &Device, config: &StreamConfig) -> Stream {
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Controller` is never used
[INFO] [stdout]  --> src/controller.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub trait Controller {
[INFO] [stdout]   |           ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `ParseError` is never used
[INFO] [stdout]   --> src/midi/formats.rs:10:10
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub enum ParseError {
[INFO] [stdout]    |          ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `is_eof` is never used
[INFO] [stdout]   --> src/midi/formats.rs:26:12
[INFO] [stdout]    |
[INFO] [stdout] 25 | impl ParseError {
[INFO] [stdout]    | --------------- method in this implementation
[INFO] [stdout] 26 |     pub fn is_eof(&self) -> bool {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `ByteChunk` is never used
[INFO] [stdout]   --> src/midi/formats.rs:37:7
[INFO] [stdout]    |
[INFO] [stdout] 37 | trait ByteChunk: Sized {
[INFO] [stdout]    |       ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Smf` is never constructed
[INFO] [stdout]   --> src/midi/formats.rs:42:12
[INFO] [stdout]    |
[INFO] [stdout] 42 | pub struct Smf {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `open`, `timebase`, `format`, and `tracks` are never used
[INFO] [stdout]   --> src/midi/formats.rs:48:12
[INFO] [stdout]    |
[INFO] [stdout] 47 | impl Smf {
[INFO] [stdout]    | -------- associated items in this implementation
[INFO] [stdout] 48 |     pub fn open<P: AsRef<Path>>(path: P) -> Result<Self, ParseError> {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 56 |     pub fn timebase(&self) -> usize {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 69 |     pub fn format(&self) -> Format {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 73 |     pub fn tracks(&self) -> &Vec<TrackChunk> {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `HeaderChunk` is never constructed
[INFO] [stdout]   --> src/midi/formats.rs:79:12
[INFO] [stdout]    |
[INFO] [stdout] 79 | pub struct HeaderChunk {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `track_num` is never used
[INFO] [stdout]   --> src/midi/formats.rs:91:12
[INFO] [stdout]    |
[INFO] [stdout] 90 | impl HeaderChunk {
[INFO] [stdout]    | ---------------- method in this implementation
[INFO] [stdout] 91 |     pub fn track_num(&self) -> u16 {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Format` is never used
[INFO] [stdout]   --> src/midi/formats.rs:97:10
[INFO] [stdout]    |
[INFO] [stdout] 97 | pub enum Format {
[INFO] [stdout]    |          ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `TrackChunk` is never constructed
[INFO] [stdout]    --> src/midi/formats.rs:104:12
[INFO] [stdout]     |
[INFO] [stdout] 104 | pub struct TrackChunk {
[INFO] [stdout]     |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Tag` is never used
[INFO] [stdout]    --> src/midi/formats.rs:111:10
[INFO] [stdout]     |
[INFO] [stdout] 111 | pub enum Tag {
[INFO] [stdout]     |          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `TrackEvent` is never constructed
[INFO] [stdout]    --> src/midi/formats.rs:117:12
[INFO] [stdout]     |
[INFO] [stdout] 117 | pub struct TrackEvent {
[INFO] [stdout]     |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `event` is never used
[INFO] [stdout]    --> src/midi/formats.rs:124:12
[INFO] [stdout]     |
[INFO] [stdout] 122 | impl TrackEvent {
[INFO] [stdout]     | --------------- method in this implementation
[INFO] [stdout] 123 |     /// Returns tick and event pair
[INFO] [stdout] 124 |     pub fn event(&self) -> (u32, &Event) {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `U28` is never constructed
[INFO] [stdout]    --> src/midi/formats.rs:131:12
[INFO] [stdout]     |
[INFO] [stdout] 131 | pub struct U28(u32);
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Slice` is never constructed
[INFO] [stdout]    --> src/midi/formats.rs:135:12
[INFO] [stdout]     |
[INFO] [stdout] 135 | pub struct Slice(Vec<u8>);
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `to_ascii` and `to_u32` are never used
[INFO] [stdout]    --> src/midi/formats.rs:138:8
[INFO] [stdout]     |
[INFO] [stdout] 137 | impl Slice {
[INFO] [stdout]     | ---------- methods in this implementation
[INFO] [stdout] 138 |     fn to_ascii(self) -> String {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 166 |     fn to_u32(self) -> u32 {
[INFO] [stdout]     |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Event` is never used
[INFO] [stdout]    --> src/midi/formats.rs:188:10
[INFO] [stdout]     |
[INFO] [stdout] 188 | pub enum Event {
[INFO] [stdout]     |          ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `is_end` is never used
[INFO] [stdout]    --> src/midi/formats.rs:195:12
[INFO] [stdout]     |
[INFO] [stdout] 194 | impl Event {
[INFO] [stdout]     | ---------- method in this implementation
[INFO] [stdout] 195 |     pub fn is_end(&self) -> bool {
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `MetaMessage` is never used
[INFO] [stdout]    --> src/midi/formats.rs:207:10
[INFO] [stdout]     |
[INFO] [stdout] 207 | pub enum MetaMessage {
[INFO] [stdout]     |          ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `U7` is never constructed
[INFO] [stdout]    --> src/midi/formats.rs:237:12
[INFO] [stdout]     |
[INFO] [stdout] 237 | pub struct U7(u8);
[INFO] [stdout]     |            ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `U14` is never constructed
[INFO] [stdout]    --> src/midi/formats.rs:243:12
[INFO] [stdout]     |
[INFO] [stdout] 243 | pub struct U14(u16);
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `MidiMessage` is never used
[INFO] [stdout]    --> src/midi/formats.rs:246:10
[INFO] [stdout]     |
[INFO] [stdout] 246 | pub enum MidiMessage {
[INFO] [stdout]     |          ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Player` is never constructed
[INFO] [stdout]  --> src/midi/player.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | struct Player {}
[INFO] [stdout]   |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated functions `new` and `play` are never used
[INFO] [stdout]   --> src/midi/player.rs:6:8
[INFO] [stdout]    |
[INFO] [stdout] 5  | impl Player {
[INFO] [stdout]    | ----------- associated functions in this implementation
[INFO] [stdout] 6  |     fn new(smf: Smf) -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 14 |     fn play() {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Mixer` is never constructed
[INFO] [stdout]  --> src/mix.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct Mixer {}
[INFO] [stdout]   |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Oscillator` is never constructed
[INFO] [stdout]  --> src/osc/mod.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | struct Oscillator {
[INFO] [stdout]   |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `OscKind` is never used
[INFO] [stdout]  --> src/osc/mod.rs:6:6
[INFO] [stdout]   |
[INFO] [stdout] 6 | enum OscKind {
[INFO] [stdout]   |      ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Controller` is never used
[INFO] [stdout]  --> src/controller.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub trait Controller {
[INFO] [stdout]   |           ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `timebase`, `format`, and `tracks` are never used
[INFO] [stdout]   --> src/midi/formats.rs:56:12
[INFO] [stdout]    |
[INFO] [stdout] 47 | impl Smf {
[INFO] [stdout]    | -------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 56 |     pub fn timebase(&self) -> usize {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 69 |     pub fn format(&self) -> Format {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 73 |     pub fn tracks(&self) -> &Vec<TrackChunk> {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `tag`, `header_len`, `format`, and `division` are never read
[INFO] [stdout]   --> src/midi/formats.rs:80:5
[INFO] [stdout]    |
[INFO] [stdout] 79 | pub struct HeaderChunk {
[INFO] [stdout]    |            ----------- fields in this struct
[INFO] [stdout] 80 |     tag: Tag,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 81 |     header_len: u32,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 82 |     format: Format,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 87 |     division: i16,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `HeaderChunk` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `track_num` is never used
[INFO] [stdout]   --> src/midi/formats.rs:91:12
[INFO] [stdout]    |
[INFO] [stdout] 90 | impl HeaderChunk {
[INFO] [stdout]    | ---------------- method in this implementation
[INFO] [stdout] 91 |     pub fn track_num(&self) -> u16 {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `tag`, `track_len`, and `events` are never read
[INFO] [stdout]    --> src/midi/formats.rs:105:5
[INFO] [stdout]     |
[INFO] [stdout] 104 | pub struct TrackChunk {
[INFO] [stdout]     |            ---------- fields in this struct
[INFO] [stdout] 105 |     tag: Tag,
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 106 |     track_len: u32,
[INFO] [stdout]     |     ^^^^^^^^^
[INFO] [stdout] 107 |     events: Vec<TrackEvent>,
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `TrackChunk` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `delta` and `event` are never read
[INFO] [stdout]    --> src/midi/formats.rs:118:5
[INFO] [stdout]     |
[INFO] [stdout] 117 | pub struct TrackEvent {
[INFO] [stdout]     |            ---------- fields in this struct
[INFO] [stdout] 118 |     delta: U28,
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout] 119 |     event: Event,
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `TrackEvent` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `event` is never used
[INFO] [stdout]    --> src/midi/formats.rs:124:12
[INFO] [stdout]     |
[INFO] [stdout] 122 | impl TrackEvent {
[INFO] [stdout]     | --------------- method in this implementation
[INFO] [stdout] 123 |     /// Returns tick and event pair
[INFO] [stdout] 124 |     pub fn event(&self) -> (u32, &Event) {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `channel` and `midi_msg` are never read
[INFO] [stdout]    --> src/midi/formats.rs:190:12
[INFO] [stdout]     |
[INFO] [stdout] 190 |     Midi { channel: u8, midi_msg: MidiMessage },
[INFO] [stdout]     |     ----   ^^^^^^^      ^^^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     fields in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Event` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `sysex_msg` is never read
[INFO] [stdout]    --> src/midi/formats.rs:191:13
[INFO] [stdout]     |
[INFO] [stdout] 191 |     Sysex { sysex_msg: Slice },
[INFO] [stdout]     |     -----   ^^^^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Event` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/midi/formats.rs:208:20
[INFO] [stdout]     |
[INFO] [stdout] 208 |     SequenceNumber(Slice),
[INFO] [stdout]     |     -------------- ^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `MetaMessage` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]     |
[INFO] [stdout] 208 -     SequenceNumber(Slice),
[INFO] [stdout] 208 +     SequenceNumber(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/midi/formats.rs:209:10
[INFO] [stdout]     |
[INFO] [stdout] 209 |     Text(String),
[INFO] [stdout]     |     ---- ^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `MetaMessage` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]     |
[INFO] [stdout] 209 -     Text(String),
[INFO] [stdout] 209 +     Text(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/midi/formats.rs:210:15
[INFO] [stdout]     |
[INFO] [stdout] 210 |     Copyright(String),
[INFO] [stdout]     |     --------- ^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `MetaMessage` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]     |
[INFO] [stdout] 210 -     Copyright(String),
[INFO] [stdout] 210 +     Copyright(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/midi/formats.rs:211:15
[INFO] [stdout]     |
[INFO] [stdout] 211 |     TrackName(String),
[INFO] [stdout]     |     --------- ^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `MetaMessage` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]     |
[INFO] [stdout] 211 -     TrackName(String),
[INFO] [stdout] 211 +     TrackName(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/midi/formats.rs:212:20
[INFO] [stdout]     |
[INFO] [stdout] 212 |     InstrumentName(String),
[INFO] [stdout]     |     -------------- ^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `MetaMessage` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]     |
[INFO] [stdout] 212 -     InstrumentName(String),
[INFO] [stdout] 212 +     InstrumentName(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/midi/formats.rs:213:11
[INFO] [stdout]     |
[INFO] [stdout] 213 |     Lyric(String),
[INFO] [stdout]     |     ----- ^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `MetaMessage` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]     |
[INFO] [stdout] 213 -     Lyric(String),
[INFO] [stdout] 213 +     Lyric(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/midi/formats.rs:214:12
[INFO] [stdout]     |
[INFO] [stdout] 214 |     Marker(String),
[INFO] [stdout]     |     ------ ^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `MetaMessage` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]     |
[INFO] [stdout] 214 -     Marker(String),
[INFO] [stdout] 214 +     Marker(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/midi/formats.rs:215:14
[INFO] [stdout]     |
[INFO] [stdout] 215 |     CuePoint(String),
[INFO] [stdout]     |     -------- ^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `MetaMessage` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]     |
[INFO] [stdout] 215 -     CuePoint(String),
[INFO] [stdout] 215 +     CuePoint(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/midi/formats.rs:216:19
[INFO] [stdout]     |
[INFO] [stdout] 216 |     ChannelPrefix(Slice),
[INFO] [stdout]     |     ------------- ^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `MetaMessage` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]     |
[INFO] [stdout] 216 -     ChannelPrefix(Slice),
[INFO] [stdout] 216 +     ChannelPrefix(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/midi/formats.rs:217:16
[INFO] [stdout]     |
[INFO] [stdout] 217 |     EndOfTrack(Slice),
[INFO] [stdout]     |     ---------- ^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `MetaMessage` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]     |
[INFO] [stdout] 217 -     EndOfTrack(Slice),
[INFO] [stdout] 217 +     EndOfTrack(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/midi/formats.rs:227:11
[INFO] [stdout]     |
[INFO] [stdout] 227 |     Tempo(u32),
[INFO] [stdout]     |     ----- ^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `MetaMessage` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]     |
[INFO] [stdout] 227 -     Tempo(u32),
[INFO] [stdout] 227 +     Tempo(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/midi/formats.rs:228:17
[INFO] [stdout]     |
[INFO] [stdout] 228 |     SmpteOffset(Slice),
[INFO] [stdout]     |     ----------- ^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `MetaMessage` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]     |
[INFO] [stdout] 228 -     SmpteOffset(Slice),
[INFO] [stdout] 228 +     SmpteOffset(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/midi/formats.rs:229:19
[INFO] [stdout]     |
[INFO] [stdout] 229 |     TimeSignature(Slice),
[INFO] [stdout]     |     ------------- ^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `MetaMessage` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]     |
[INFO] [stdout] 229 -     TimeSignature(Slice),
[INFO] [stdout] 229 +     TimeSignature(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/midi/formats.rs:230:18
[INFO] [stdout]     |
[INFO] [stdout] 230 |     KeySignature(Slice),
[INFO] [stdout]     |     ------------ ^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `MetaMessage` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]     |
[INFO] [stdout] 230 -     KeySignature(Slice),
[INFO] [stdout] 230 +     KeySignature(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/midi/formats.rs:231:23
[INFO] [stdout]     |
[INFO] [stdout] 231 |     SequencerSpecific(Slice),
[INFO] [stdout]     |     ----------------- ^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `MetaMessage` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]     |
[INFO] [stdout] 231 -     SequencerSpecific(Slice),
[INFO] [stdout] 231 +     SequencerSpecific(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/midi/formats.rs:232:13
[INFO] [stdout]     |
[INFO] [stdout] 232 |     Unknown(Slice),
[INFO] [stdout]     |     ------- ^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `MetaMessage` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]     |
[INFO] [stdout] 232 -     Unknown(Slice),
[INFO] [stdout] 232 +     Unknown(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/midi/formats.rs:237:15
[INFO] [stdout]     |
[INFO] [stdout] 237 | pub struct U7(u8);
[INFO] [stdout]     |            -- ^^
[INFO] [stdout]     |            |
[INFO] [stdout]     |            field in this struct
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider removing this field
[INFO] [stdout]     = note: `U7` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `key` and `vel` are never read
[INFO] [stdout]    --> src/midi/formats.rs:248:15
[INFO] [stdout]     |
[INFO] [stdout] 248 |     NoteOff { key: U7, vel: U7 },
[INFO] [stdout]     |     -------   ^^^      ^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     fields in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `MidiMessage` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `key` and `vel` are never read
[INFO] [stdout]    --> src/midi/formats.rs:250:14
[INFO] [stdout]     |
[INFO] [stdout] 250 |     NoteOn { key: U7, vel: U7 },
[INFO] [stdout]     |     ------   ^^^      ^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     fields in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `MidiMessage` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `key` and `vel` are never read
[INFO] [stdout]    --> src/midi/formats.rs:252:18
[INFO] [stdout]     |
[INFO] [stdout] 252 |     Aftertouch { key: U7, vel: U7 },
[INFO] [stdout]     |     ----------   ^^^      ^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     fields in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `MidiMessage` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `controller` and `value` are never read
[INFO] [stdout]    --> src/midi/formats.rs:254:21
[INFO] [stdout]     |
[INFO] [stdout] 254 |     ControlChange { controller: U7, value: U7 },
[INFO] [stdout]     |     -------------   ^^^^^^^^^^      ^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     fields in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `MidiMessage` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `program` is never read
[INFO] [stdout]    --> src/midi/formats.rs:256:19
[INFO] [stdout]     |
[INFO] [stdout] 256 |     PatchChange { program: U7 },
[INFO] [stdout]     |     -----------   ^^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `MidiMessage` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `vel` is never read
[INFO] [stdout]    --> src/midi/formats.rs:258:23
[INFO] [stdout]     |
[INFO] [stdout] 258 |     ChannelPressure { vel: U7 },
[INFO] [stdout]     |     ---------------   ^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `MidiMessage` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `value` is never read
[INFO] [stdout]    --> src/midi/formats.rs:260:17
[INFO] [stdout]     |
[INFO] [stdout] 260 |     PitchBend { value: U14 },
[INFO] [stdout]     |     ---------   ^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `MidiMessage` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Player` is never constructed
[INFO] [stdout]  --> src/midi/player.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | struct Player {}
[INFO] [stdout]   |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated functions `new` and `play` are never used
[INFO] [stdout]   --> src/midi/player.rs:6:8
[INFO] [stdout]    |
[INFO] [stdout] 5  | impl Player {
[INFO] [stdout]    | ----------- associated functions in this implementation
[INFO] [stdout] 6  |     fn new(smf: Smf) -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 14 |     fn play() {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Mixer` is never constructed
[INFO] [stdout]  --> src/mix.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct Mixer {}
[INFO] [stdout]   |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Oscillator` is never constructed
[INFO] [stdout]  --> src/osc/mod.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | struct Oscillator {
[INFO] [stdout]   |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `OscKind` is never used
[INFO] [stdout]  --> src/osc/mod.rs:6:6
[INFO] [stdout]   |
[INFO] [stdout] 6 | enum OscKind {
[INFO] [stdout]   |      ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.56s
[INFO] running `Command { std: "docker" "inspect" "223adca555500d2644c3b07e1d3d8dca67cca229fecf88b7ed4720362c6c4e7f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "223adca555500d2644c3b07e1d3d8dca67cca229fecf88b7ed4720362c6c4e7f", kill_on_drop: false }`
[INFO] [stdout] 223adca555500d2644c3b07e1d3d8dca67cca229fecf88b7ed4720362c6c4e7f