[INFO] updating cached repository https://github.com/stelzch/effective-octo-barnacle
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 8f0bc1d2d5c7d53838423e36591647b614392f58
[INFO] testing stelzch/effective-octo-barnacle against beta-2020-06-03 for beta-1.45-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstelzch%2Feffective-octo-barnacle" "/workspace/builds/worker-3/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/stelzch/effective-octo-barnacle on toolchain beta-2020-06-03
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "read-manifest" "--manifest-path" "Cargo.toml"`
[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-3/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 `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-06-03" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] acc64606461a270cbbd6466fb33ab21c1389578be2dcfcb89185790c3297baa3
[INFO] running `"docker" "start" "-a" "acc64606461a270cbbd6466fb33ab21c1389578be2dcfcb89185790c3297baa3"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libpulse-sys v1.12.1
[INFO] [stderr]    Compiling libpulse-simple-sys v1.12.1
[INFO] [stderr]    Compiling libpulse-binding v2.15.0
[INFO] [stderr]    Compiling libpulse-simple-binding v2.15.0
[INFO] [stderr]    Compiling rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `std::f64::consts::PI`
[INFO] [stderr]  --> src/main.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::f64::consts::PI;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::graphics::Polygon`
[INFO] [stderr]  --> src/audio/generator.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use crate::graphics::Polygon;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::cmp::max`
[INFO] [stderr]   --> src/audio/generator.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 | use std::cmp::max;
[INFO] [stderr]    |     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::slice`
[INFO] [stderr]   --> src/audio/generator.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 | use std::slice;
[INFO] [stderr]    |     ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::cmp::min`
[INFO] [stderr]  --> src/engine.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use std::cmp::min;
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `entity_samples`
[INFO] [stderr]   --> src/engine.rs:38:17
[INFO] [stderr]    |
[INFO] [stderr] 38 |             let entity_samples : usize = (entity.perimeter() / total_perimeter * f64::from(self.num_samples as i32)) as usize;
[INFO] [stderr]    |                 ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_entity_samples`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `func_to_wavetable`
[INFO] [stderr]   --> src/audio/generator.rs:71:8
[INFO] [stderr]    |
[INFO] [stderr] 71 | pub fn func_to_wavetable(num_samples : usize, f : impl Fn(usize) -> i16) -> Vec<i16> {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `sine_wavetable`
[INFO] [stderr]   --> src/audio/generator.rs:80:8
[INFO] [stderr]    |
[INFO] [stderr] 80 | pub fn sine_wavetable(freq : u32, phase : f64, amplitude : f64, offset : f64) -> Vec<i16> {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: type alias is never used: `Matrix2D`
[INFO] [stderr]  --> src/graphics.rs:9:1
[INFO] [stderr]   |
[INFO] [stderr] 9 | pub type Matrix2D = [[f64; 2]; 2];
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `rotation_matrix`
[INFO] [stderr]   --> src/graphics.rs:12:4
[INFO] [stderr]    |
[INFO] [stderr] 12 | fn rotation_matrix(angle: f64) -> Matrix2D {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `transform`
[INFO] [stderr]   --> src/graphics.rs:28:12
[INFO] [stderr]    |
[INFO] [stderr] 28 |     pub fn transform(&mut self, matrix: &Matrix2D) {
[INFO] [stderr]    |            ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `rotate`
[INFO] [stderr]   --> src/graphics.rs:36:12
[INFO] [stderr]    |
[INFO] [stderr] 36 |     pub fn rotate(&mut self, angle: f64) {
[INFO] [stderr]    |            ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `translate`
[INFO] [stderr]   --> src/graphics.rs:40:12
[INFO] [stderr]    |
[INFO] [stderr] 40 |     pub fn translate(&mut self, dx: f64, dy: f64) {
[INFO] [stderr]    |            ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `scale`
[INFO] [stderr]   --> src/graphics.rs:45:12
[INFO] [stderr]    |
[INFO] [stderr] 45 |     pub fn scale(&mut self, sx: f64, sy: f64) {
[INFO] [stderr]    |            ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `rotate`
[INFO] [stderr]    --> src/graphics.rs:129:12
[INFO] [stderr]     |
[INFO] [stderr] 129 |     pub fn rotate(&mut self, angle: f64) {
[INFO] [stderr]     |            ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `scale`
[INFO] [stderr]    --> src/graphics.rs:135:12
[INFO] [stderr]     |
[INFO] [stderr] 135 |     pub fn scale(&mut self, sx: f64, sy: f64) {
[INFO] [stderr]     |            ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new`
[INFO] [stderr]    --> src/graphics.rs:161:12
[INFO] [stderr]     |
[INFO] [stderr] 161 |     pub fn new(x : f64, y : f64, width : f64, height : f64) -> Rectangle {
[INFO] [stderr]     |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant is never used: `BALL_RADIUS`
[INFO] [stderr]   --> src/main.rs:21:5
[INFO] [stderr]    |
[INFO] [stderr] 21 |     const BALL_RADIUS : f64 = 0.07;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/engine.rs:19:9
[INFO] [stderr]    |
[INFO] [stderr] 19 |         audio.pa.write(&entity_to_wavetable(samples, &self));
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: 19 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.66s
[INFO] running `"docker" "inspect" "acc64606461a270cbbd6466fb33ab21c1389578be2dcfcb89185790c3297baa3"`
[INFO] running `"docker" "rm" "-f" "acc64606461a270cbbd6466fb33ab21c1389578be2dcfcb89185790c3297baa3"`
[INFO] [stdout] acc64606461a270cbbd6466fb33ab21c1389578be2dcfcb89185790c3297baa3
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-06-03" "test" "--frozen" "--no-run"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 58416c7a9ffc662a4a43cb7c063d20c3cabd817aa414d5e409757cc49a025d78
[INFO] running `"docker" "start" "-a" "58416c7a9ffc662a4a43cb7c063d20c3cabd817aa414d5e409757cc49a025d78"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `std::f64::consts::PI`
[INFO] [stderr]  --> src/main.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::f64::consts::PI;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::graphics::Polygon`
[INFO] [stderr]  --> src/audio/generator.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use crate::graphics::Polygon;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::cmp::max`
[INFO] [stderr]   --> src/audio/generator.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 | use std::cmp::max;
[INFO] [stderr]    |     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::slice`
[INFO] [stderr]   --> src/audio/generator.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 | use std::slice;
[INFO] [stderr]    |     ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::cmp::min`
[INFO] [stderr]  --> src/engine.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use std::cmp::min;
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `entity_samples`
[INFO] [stderr]   --> src/engine.rs:38:17
[INFO] [stderr]    |
[INFO] [stderr] 38 |             let entity_samples : usize = (entity.perimeter() / total_perimeter * f64::from(self.num_samples as i32)) as usize;
[INFO] [stderr]    |                 ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_entity_samples`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `func_to_wavetable`
[INFO] [stderr]   --> src/audio/generator.rs:71:8
[INFO] [stderr]    |
[INFO] [stderr] 71 | pub fn func_to_wavetable(num_samples : usize, f : impl Fn(usize) -> i16) -> Vec<i16> {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `sine_wavetable`
[INFO] [stderr]   --> src/audio/generator.rs:80:8
[INFO] [stderr]    |
[INFO] [stderr] 80 | pub fn sine_wavetable(freq : u32, phase : f64, amplitude : f64, offset : f64) -> Vec<i16> {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: type alias is never used: `Matrix2D`
[INFO] [stderr]  --> src/graphics.rs:9:1
[INFO] [stderr]   |
[INFO] [stderr] 9 | pub type Matrix2D = [[f64; 2]; 2];
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `rotation_matrix`
[INFO] [stderr]   --> src/graphics.rs:12:4
[INFO] [stderr]    |
[INFO] [stderr] 12 | fn rotation_matrix(angle: f64) -> Matrix2D {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `transform`
[INFO] [stderr]   --> src/graphics.rs:28:12
[INFO] [stderr]    |
[INFO] [stderr] 28 |     pub fn transform(&mut self, matrix: &Matrix2D) {
[INFO] [stderr]    |            ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `rotate`
[INFO] [stderr]   --> src/graphics.rs:36:12
[INFO] [stderr]    |
[INFO] [stderr] 36 |     pub fn rotate(&mut self, angle: f64) {
[INFO] [stderr]    |            ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `translate`
[INFO] [stderr]   --> src/graphics.rs:40:12
[INFO] [stderr]    |
[INFO] [stderr] 40 |     pub fn translate(&mut self, dx: f64, dy: f64) {
[INFO] [stderr]    |            ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `scale`
[INFO] [stderr]   --> src/graphics.rs:45:12
[INFO] [stderr]    |
[INFO] [stderr] 45 |     pub fn scale(&mut self, sx: f64, sy: f64) {
[INFO] [stderr]    |            ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `rotate`
[INFO] [stderr]    --> src/graphics.rs:129:12
[INFO] [stderr]     |
[INFO] [stderr] 129 |     pub fn rotate(&mut self, angle: f64) {
[INFO] [stderr]     |            ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `scale`
[INFO] [stderr]    --> src/graphics.rs:135:12
[INFO] [stderr]     |
[INFO] [stderr] 135 |     pub fn scale(&mut self, sx: f64, sy: f64) {
[INFO] [stderr]     |            ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new`
[INFO] [stderr]    --> src/graphics.rs:161:12
[INFO] [stderr]     |
[INFO] [stderr] 161 |     pub fn new(x : f64, y : f64, width : f64, height : f64) -> Rectangle {
[INFO] [stderr]     |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/engine.rs:19:9
[INFO] [stderr]    |
[INFO] [stderr] 19 |         audio.pa.write(&entity_to_wavetable(samples, &self));
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: 18 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.01s
[INFO] running `"docker" "inspect" "58416c7a9ffc662a4a43cb7c063d20c3cabd817aa414d5e409757cc49a025d78"`
[INFO] running `"docker" "rm" "-f" "58416c7a9ffc662a4a43cb7c063d20c3cabd817aa414d5e409757cc49a025d78"`
[INFO] [stdout] 58416c7a9ffc662a4a43cb7c063d20c3cabd817aa414d5e409757cc49a025d78
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-06-03" "test" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 449c5f697e9db91991a81bc5a06d34b5cd1c757a6dccb30d45ef556200534820
[INFO] running `"docker" "start" "-a" "449c5f697e9db91991a81bc5a06d34b5cd1c757a6dccb30d45ef556200534820"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr] warning: unused import: `std::f64::consts::PI`
[INFO] [stderr]  --> src/main.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::f64::consts::PI;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::graphics::Polygon`
[INFO] [stderr]  --> src/audio/generator.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use crate::graphics::Polygon;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::cmp::max`
[INFO] [stderr]   --> src/audio/generator.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 | use std::cmp::max;
[INFO] [stderr]    |     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::slice`
[INFO] [stderr]   --> src/audio/generator.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 | use std::slice;
[INFO] [stderr]    |     ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::cmp::min`
[INFO] [stderr]  --> src/engine.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use std::cmp::min;
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `entity_samples`
[INFO] [stderr]   --> src/engine.rs:38:17
[INFO] [stderr]    |
[INFO] [stderr] 38 |             let entity_samples : usize = (entity.perimeter() / total_perimeter * f64::from(self.num_samples as i32)) as usize;
[INFO] [stderr]    |                 ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_entity_samples`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `func_to_wavetable`
[INFO] [stderr]   --> src/audio/generator.rs:71:8
[INFO] [stderr]    |
[INFO] [stderr] 71 | pub fn func_to_wavetable(num_samples : usize, f : impl Fn(usize) -> i16) -> Vec<i16> {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `sine_wavetable`
[INFO] [stderr]   --> src/audio/generator.rs:80:8
[INFO] [stderr]    |
[INFO] [stderr] 80 | pub fn sine_wavetable(freq : u32, phase : f64, amplitude : f64, offset : f64) -> Vec<i16> {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: type alias is never used: `Matrix2D`
[INFO] [stderr]  --> src/graphics.rs:9:1
[INFO] [stderr]   |
[INFO] [stderr] 9 | pub type Matrix2D = [[f64; 2]; 2];
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `rotation_matrix`
[INFO] [stderr]   --> src/graphics.rs:12:4
[INFO] [stderr]    |
[INFO] [stderr] 12 | fn rotation_matrix(angle: f64) -> Matrix2D {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `transform`
[INFO] [stderr]   --> src/graphics.rs:28:12
[INFO] [stderr]    |
[INFO] [stderr] 28 |     pub fn transform(&mut self, matrix: &Matrix2D) {
[INFO] [stderr]    |            ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `rotate`
[INFO] [stderr]   --> src/graphics.rs:36:12
[INFO] [stderr]    |
[INFO] [stderr] 36 |     pub fn rotate(&mut self, angle: f64) {
[INFO] [stderr]    |            ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `translate`
[INFO] [stderr]   --> src/graphics.rs:40:12
[INFO] [stderr]    |
[INFO] [stderr] 40 |     pub fn translate(&mut self, dx: f64, dy: f64) {
[INFO] [stderr]    |            ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `scale`
[INFO] [stderr]   --> src/graphics.rs:45:12
[INFO] [stderr]    |
[INFO] [stderr] 45 |     pub fn scale(&mut self, sx: f64, sy: f64) {
[INFO] [stderr]    |            ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `rotate`
[INFO] [stderr]    --> src/graphics.rs:129:12
[INFO] [stderr]     |
[INFO] [stderr] 129 |     pub fn rotate(&mut self, angle: f64) {
[INFO] [stderr]     |            ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `scale`
[INFO] [stderr]    --> src/graphics.rs:135:12
[INFO] [stderr]     |
[INFO] [stderr] 135 |     pub fn scale(&mut self, sx: f64, sy: f64) {
[INFO] [stderr]     |            ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new`
[INFO] [stderr]    --> src/graphics.rs:161:12
[INFO] [stderr]     |
[INFO] [stderr] 161 |     pub fn new(x : f64, y : f64, width : f64, height : f64) -> Rectangle {
[INFO] [stderr]     |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/engine.rs:19:9
[INFO] [stderr]    |
[INFO] [stderr] 19 |         audio.pa.write(&entity_to_wavetable(samples, &self));
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: 18 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.11s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/rust-0aa0fa7283efbb7b
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "449c5f697e9db91991a81bc5a06d34b5cd1c757a6dccb30d45ef556200534820"`
[INFO] running `"docker" "rm" "-f" "449c5f697e9db91991a81bc5a06d34b5cd1c757a6dccb30d45ef556200534820"`
[INFO] [stdout] 449c5f697e9db91991a81bc5a06d34b5cd1c757a6dccb30d45ef556200534820