[INFO] cloning repository https://github.com/stelzch/effective-octo-barnacle
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/stelzch/effective-octo-barnacle" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstelzch%2Feffective-octo-barnacle", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstelzch%2Feffective-octo-barnacle'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8f0bc1d2d5c7d53838423e36591647b614392f58
[INFO] checking stelzch/effective-octo-barnacle against try#a7a572ce3edd6d476191fbfe92c9c1986e009b34 for pr-87190-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstelzch%2Feffective-octo-barnacle" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/stelzch/effective-octo-barnacle on toolchain a7a572ce3edd6d476191fbfe92c9c1986e009b34
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/stelzch/effective-octo-barnacle
[INFO] finished tweaking git repo https://github.com/stelzch/effective-octo-barnacle
[INFO] tweaked toml for git repo https://github.com/stelzch/effective-octo-barnacle written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/stelzch/effective-octo-barnacle already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded libpulse-simple-binding v2.15.0
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "start" "-a" "64b6c09b6ebbd4ac87dab42e9889279eb83431d64697e367864fee7251f74caa", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "start" "-a" "da533147bc142cf6061172f5d54fa0acb7594411d90dbed445cee2689867cd0c", kill_on_drop: false }`
[INFO] [stderr] Copying to /tmp/fixit
[INFO] [stderr] Running `cargo fix --edition`
[INFO] [stderr]    Compiling libc v0.2.68
[INFO] [stderr]    Compiling pkg-config v0.3.17
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking ppv-lite86 v0.2.6
[INFO] [stderr]    Compiling libpulse-sys v1.12.1
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[INFO] [stderr]     Checking getrandom v0.1.14
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking libpulse-binding v2.15.0
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking libpulse-simple-binding v2.15.0
[INFO] [stderr]     Checking rust v0.1.0 (/tmp/fixit)
[INFO] [stderr]    Migrating src/main.rs from 2018 edition to 2021
[INFO] [stderr]        Fixed src/engine.rs (2 fixes)
[INFO] [stderr]        Fixed src/audio/generator.rs (3 fixes)
[INFO] [stderr]        Fixed src/main.rs (1 fix)
[INFO] [stdout] warning: function is never used: `func_to_wavetable`
[INFO] [stdout]   --> src/audio/generator.rs:71:8
[INFO] [stdout]    |
[INFO] [stdout] 71 | pub fn func_to_wavetable(num_samples : usize, f : impl Fn(usize) -> i16) -> Vec<i16> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `sine_wavetable`
[INFO] [stdout]   --> src/audio/generator.rs:80:8
[INFO] [stdout]    |
[INFO] [stdout] 80 | pub fn sine_wavetable(freq : u32, phase : f64, amplitude : f64, offset : f64) -> Vec<i16> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias is never used: `Matrix2D`
[INFO] [stdout]  --> src/graphics.rs:9:1
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub type Matrix2D = [[f64; 2]; 2];
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `rotation_matrix`
[INFO] [stdout]   --> src/graphics.rs:12:4
[INFO] [stdout]    |
[INFO] [stdout] 12 | fn rotation_matrix(angle: f64) -> Matrix2D {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `transform`
[INFO] [stdout]   --> src/graphics.rs:28:12
[INFO] [stdout]    |
[INFO] [stdout] 28 |     pub fn transform(&mut self, matrix: &Matrix2D) {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `rotate`
[INFO] [stdout]   --> src/graphics.rs:36:12
[INFO] [stdout]    |
[INFO] [stdout] 36 |     pub fn rotate(&mut self, angle: f64) {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `translate`
[INFO] [stdout]   --> src/graphics.rs:40:12
[INFO] [stdout]    |
[INFO] [stdout] 40 |     pub fn translate(&mut self, dx: f64, dy: f64) {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `scale`
[INFO] [stdout]   --> src/graphics.rs:45:12
[INFO] [stdout]    |
[INFO] [stdout] 45 |     pub fn scale(&mut self, sx: f64, sy: f64) {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `rotate`
[INFO] [stdout]    --> src/graphics.rs:129:12
[INFO] [stdout]     |
[INFO] [stdout] 129 |     pub fn rotate(&mut self, angle: f64) {
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `scale`
[INFO] [stdout]    --> src/graphics.rs:135:12
[INFO] [stdout]     |
[INFO] [stdout] 135 |     pub fn scale(&mut self, sx: f64, sy: f64) {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]    --> src/graphics.rs:161:12
[INFO] [stdout]     |
[INFO] [stdout] 161 |     pub fn new(x : f64, y : f64, width : f64, height : f64) -> Rectangle {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `BALL_RADIUS`
[INFO] [stdout]   --> src/main.rs:21:5
[INFO] [stdout]    |
[INFO] [stdout] 21 |     const BALL_RADIUS : f64 = 0.07;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/engine.rs:19:9
[INFO] [stdout]    |
[INFO] [stdout] 19 |         audio.pa.write(&entity_to_wavetable(samples, &self));
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 13 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `func_to_wavetable`
[INFO] [stdout]   --> src/audio/generator.rs:71:8
[INFO] [stdout]    |
[INFO] [stdout] 71 | pub fn func_to_wavetable(num_samples : usize, f : impl Fn(usize) -> i16) -> Vec<i16> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `sine_wavetable`
[INFO] [stdout]   --> src/audio/generator.rs:80:8
[INFO] [stdout]    |
[INFO] [stdout] 80 | pub fn sine_wavetable(freq : u32, phase : f64, amplitude : f64, offset : f64) -> Vec<i16> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias is never used: `Matrix2D`
[INFO] [stdout]  --> src/graphics.rs:9:1
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub type Matrix2D = [[f64; 2]; 2];
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `rotation_matrix`
[INFO] [stdout]   --> src/graphics.rs:12:4
[INFO] [stdout]    |
[INFO] [stdout] 12 | fn rotation_matrix(angle: f64) -> Matrix2D {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `transform`
[INFO] [stdout]   --> src/graphics.rs:28:12
[INFO] [stdout]    |
[INFO] [stdout] 28 |     pub fn transform(&mut self, matrix: &Matrix2D) {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `rotate`
[INFO] [stdout]   --> src/graphics.rs:36:12
[INFO] [stdout]    |
[INFO] [stdout] 36 |     pub fn rotate(&mut self, angle: f64) {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `translate`
[INFO] [stdout]   --> src/graphics.rs:40:12
[INFO] [stdout]    |
[INFO] [stdout] 40 |     pub fn translate(&mut self, dx: f64, dy: f64) {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `scale`
[INFO] [stdout]   --> src/graphics.rs:45:12
[INFO] [stdout]    |
[INFO] [stdout] 45 |     pub fn scale(&mut self, sx: f64, sy: f64) {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `rotate`
[INFO] [stdout]    --> src/graphics.rs:129:12
[INFO] [stdout]     |
[INFO] [stdout] 129 |     pub fn rotate(&mut self, angle: f64) {
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `scale`
[INFO] [stdout]    --> src/graphics.rs:135:12
[INFO] [stdout]     |
[INFO] [stdout] 135 |     pub fn scale(&mut self, sx: f64, sy: f64) {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]    --> src/graphics.rs:161:12
[INFO] [stdout]     |
[INFO] [stdout] 161 |     pub fn new(x : f64, y : f64, width : f64, height : f64) -> Rectangle {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/engine.rs:19:9
[INFO] [stdout]    |
[INFO] [stdout] 19 |         audio.pa.write(&entity_to_wavetable(samples, &self));
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 12 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.21s
[INFO] [stderr] Running `cargo check` to verify 2021
[INFO] [stderr]     Checking rust v0.1.0 (/tmp/fixit)
[INFO] [stdout] warning: function is never used: `func_to_wavetable`
[INFO] [stdout]   --> src/audio/generator.rs:71:8
[INFO] [stdout]    |
[INFO] [stdout] 71 | pub fn func_to_wavetable(num_samples : usize, f : impl Fn(usize) -> i16) -> Vec<i16> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `sine_wavetable`
[INFO] [stdout]   --> src/audio/generator.rs:80:8
[INFO] [stdout]    |
[INFO] [stdout] 80 | pub fn sine_wavetable(freq : u32, phase : f64, amplitude : f64, offset : f64) -> Vec<i16> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias is never used: `Matrix2D`
[INFO] [stdout]  --> src/graphics.rs:9:1
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub type Matrix2D = [[f64; 2]; 2];
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `rotation_matrix`
[INFO] [stdout]   --> src/graphics.rs:12:4
[INFO] [stdout]    |
[INFO] [stdout] 12 | fn rotation_matrix(angle: f64) -> Matrix2D {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `transform`
[INFO] [stdout]   --> src/graphics.rs:28:12
[INFO] [stdout]    |
[INFO] [stdout] 28 |     pub fn transform(&mut self, matrix: &Matrix2D) {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `rotate`
[INFO] [stdout]   --> src/graphics.rs:36:12
[INFO] [stdout]    |
[INFO] [stdout] 36 |     pub fn rotate(&mut self, angle: f64) {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `translate`
[INFO] [stdout]   --> src/graphics.rs:40:12
[INFO] [stdout]    |
[INFO] [stdout] 40 |     pub fn translate(&mut self, dx: f64, dy: f64) {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `scale`
[INFO] [stdout]   --> src/graphics.rs:45:12
[INFO] [stdout]    |
[INFO] [stdout] 45 |     pub fn scale(&mut self, sx: f64, sy: f64) {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `rotate`
[INFO] [stdout]    --> src/graphics.rs:129:12
[INFO] [stdout]     |
[INFO] [stdout] 129 |     pub fn rotate(&mut self, angle: f64) {
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `scale`
[INFO] [stdout]    --> src/graphics.rs:135:12
[INFO] [stdout]     |
[INFO] [stdout] 135 |     pub fn scale(&mut self, sx: f64, sy: f64) {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]    --> src/graphics.rs:161:12
[INFO] [stdout]     |
[INFO] [stdout] 161 |     pub fn new(x : f64, y : f64, width : f64, height : f64) -> Rectangle {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/engine.rs:19:9
[INFO] [stdout]    |
[INFO] [stdout] 19 |         audio.pa.write(&entity_to_wavetable(samples, &self));
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `func_to_wavetable`
[INFO] [stdout]   --> src/audio/generator.rs:71:8
[INFO] [stdout]    |
[INFO] [stdout] 71 | pub fn func_to_wavetable(num_samples : usize, f : impl Fn(usize) -> i16) -> Vec<i16> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `sine_wavetable`
[INFO] [stdout]   --> src/audio/generator.rs:80:8
[INFO] [stdout]    |
[INFO] [stdout] 80 | pub fn sine_wavetable(freq : u32, phase : f64, amplitude : f64, offset : f64) -> Vec<i16> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias is never used: `Matrix2D`
[INFO] [stdout]  --> src/graphics.rs:9:1
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub type Matrix2D = [[f64; 2]; 2];
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `rotation_matrix`
[INFO] [stdout]   --> src/graphics.rs:12:4
[INFO] [stdout]    |
[INFO] [stdout] 12 | fn rotation_matrix(angle: f64) -> Matrix2D {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `transform`
[INFO] [stdout]   --> src/graphics.rs:28:12
[INFO] [stdout]    |
[INFO] [stdout] 28 |     pub fn transform(&mut self, matrix: &Matrix2D) {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `rotate`
[INFO] [stdout]   --> src/graphics.rs:36:12
[INFO] [stdout]    |
[INFO] [stdout] 36 |     pub fn rotate(&mut self, angle: f64) {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `translate`
[INFO] [stdout]   --> src/graphics.rs:40:12
[INFO] [stdout]    |
[INFO] [stdout] 40 |     pub fn translate(&mut self, dx: f64, dy: f64) {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `scale`
[INFO] [stdout]   --> src/graphics.rs:45:12
[INFO] [stdout]    |
[INFO] [stdout] 45 |     pub fn scale(&mut self, sx: f64, sy: f64) {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `rotate`
[INFO] [stdout]    --> src/graphics.rs:129:12
[INFO] [stdout]     |
[INFO] [stdout] 129 |     pub fn rotate(&mut self, angle: f64) {
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `scale`
[INFO] [stdout]    --> src/graphics.rs:135:12
[INFO] [stdout]     |
[INFO] [stdout] 135 |     pub fn scale(&mut self, sx: f64, sy: f64) {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]    --> src/graphics.rs:161:12
[INFO] [stdout]     |
[INFO] [stdout] 161 |     pub fn new(x : f64, y : f64, width : f64, height : f64) -> Rectangle {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 12 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `BALL_RADIUS`
[INFO] [stdout]   --> src/main.rs:21:5
[INFO] [stdout]    |
[INFO] [stdout] 21 |     const BALL_RADIUS : f64 = 0.07;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/engine.rs:19:9
[INFO] [stdout]    |
[INFO] [stdout] 19 |         audio.pa.write(&entity_to_wavetable(samples, &self));
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 13 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.33s
[INFO] running `Command { std: "docker" "inspect" "da533147bc142cf6061172f5d54fa0acb7594411d90dbed445cee2689867cd0c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "da533147bc142cf6061172f5d54fa0acb7594411d90dbed445cee2689867cd0c", kill_on_drop: false }`
[INFO] [stdout] da533147bc142cf6061172f5d54fa0acb7594411d90dbed445cee2689867cd0c