Dec 17 18:31:47.785 INFO checking nutcase84/piano against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 17 18:31:47.785 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-2/master#96d1334e567237b1507cd277938e7ae2de75ff51:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/master#96d1334e567237b1507cd277938e7ae2de75ff51/gh/nutcase84/piano:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+96d1334e567237b1507cd277938e7ae2de75ff51-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 17 18:31:47.963 INFO [stdout] 13ccaae456ea9cd5b9f5b14357de75fe32c807e44ff66957abae211b3319b678
Dec 17 18:31:47.965 INFO running `"docker" "start" "-a" "13ccaae456ea9cd5b9f5b14357de75fe32c807e44ff66957abae211b3319b678"`
Dec 17 18:31:48.578 INFO [stderr]    Compiling libloading v0.4.3
Dec 17 18:31:48.578 INFO [stderr]     Checking rand v0.5.5
Dec 17 18:31:49.803 INFO [stderr]     Checking vst v0.0.1
Dec 17 18:31:51.287 INFO [stderr]     Checking piano v0.1.0 (/opt/crater/workdir)
Dec 17 18:31:51.554 INFO [stderr] warning: variable `active_notes` is assigned to, but never used
Dec 17 18:31:51.554 INFO [stderr]   --> src/event.rs:34:10
Dec 17 18:31:51.554 INFO [stderr]    |
Dec 17 18:31:51.554 INFO [stderr] 34 |     let mut active_notes = 0; // could be useful later
Dec 17 18:31:51.554 INFO [stderr]    |             ^^^^^^^^^^^^
Dec 17 18:31:51.554 INFO [stderr]    |
Dec 17 18:31:51.554 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 17 18:31:51.554 INFO [stderr]    = note: consider using `_active_notes` instead
Dec 17 18:31:51.554 INFO [stderr] 
Dec 17 18:31:51.554 INFO [stderr] warning: unused variable: `i`
Dec 17 18:31:51.554 INFO [stderr]   --> src/filter.rs:54:7
Dec 17 18:31:51.554 INFO [stderr]    |
Dec 17 18:31:51.554 INFO [stderr] 54 |         for i in 0..buffer_size {
Dec 17 18:31:51.554 INFO [stderr]    |             ^ help: consider using `_i` instead
Dec 17 18:31:51.554 INFO [stderr] 
Dec 17 18:31:51.576 INFO [stderr] warning: function is never used: `hammer`
Dec 17 18:31:51.576 INFO [stderr]  --> src/hammer.rs:4:1
Dec 17 18:31:51.576 INFO [stderr]   |
Dec 17 18:31:51.576 INFO [stderr] 4 | pub fn hammer(string: &mut Waveguide, stiffness: f32, size: usize, velocity: f32, position: usize, time: f32) {
Dec 17 18:31:51.576 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 18:31:51.576 INFO [stderr]   |
Dec 17 18:31:51.576 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 17 18:31:51.576 INFO [stderr] 
Dec 17 18:31:51.576 INFO [stderr] warning: struct is never constructed: `IntegerAllPass`
Dec 17 18:31:51.576 INFO [stderr]  --> src/filter.rs:3:1
Dec 17 18:31:51.576 INFO [stderr]   |
Dec 17 18:31:51.576 INFO [stderr] 3 | pub struct IntegerAllPass { // Generic integer-delay allpass
Dec 17 18:31:51.577 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 18:31:51.577 INFO [stderr] 
Dec 17 18:31:51.577 INFO [stderr] warning: method is never used: `new`
Dec 17 18:31:51.577 INFO [stderr]   --> src/filter.rs:10:2
Dec 17 18:31:51.577 INFO [stderr]    |
Dec 17 18:31:51.577 INFO [stderr] 10 |     pub fn new(gain: f32, size: usize) -> Self {
Dec 17 18:31:51.577 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 18:31:51.577 INFO [stderr] 
Dec 17 18:31:51.577 INFO [stderr] warning: method is never used: `update`
Dec 17 18:31:51.577 INFO [stderr]   --> src/filter.rs:18:2
Dec 17 18:31:51.577 INFO [stderr]    |
Dec 17 18:31:51.577 INFO [stderr] 18 |     pub fn update(&mut self, input: f32) -> f32 {
Dec 17 18:31:51.577 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 18:31:51.577 INFO [stderr] 
Dec 17 18:31:51.588 INFO [stderr] warning: variable `active_notes` is assigned to, but never used
Dec 17 18:31:51.588 INFO [stderr]   --> src/event.rs:34:10
Dec 17 18:31:51.588 INFO [stderr]    |
Dec 17 18:31:51.588 INFO [stderr] 34 |     let mut active_notes = 0; // could be useful later
Dec 17 18:31:51.588 INFO [stderr]    |             ^^^^^^^^^^^^
Dec 17 18:31:51.588 INFO [stderr]    |
Dec 17 18:31:51.588 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 17 18:31:51.588 INFO [stderr]    = note: consider using `_active_notes` instead
Dec 17 18:31:51.588 INFO [stderr] 
Dec 17 18:31:51.588 INFO [stderr] warning: unused variable: `i`
Dec 17 18:31:51.588 INFO [stderr]   --> src/filter.rs:54:7
Dec 17 18:31:51.588 INFO [stderr]    |
Dec 17 18:31:51.588 INFO [stderr] 54 |         for i in 0..buffer_size {
Dec 17 18:31:51.588 INFO [stderr]    |             ^ help: consider using `_i` instead
Dec 17 18:31:51.588 INFO [stderr] 
Dec 17 18:31:51.644 INFO [stderr] warning: function is never used: `hammer`
Dec 17 18:31:51.644 INFO [stderr]  --> src/hammer.rs:4:1
Dec 17 18:31:51.644 INFO [stderr]   |
Dec 17 18:31:51.644 INFO [stderr] 4 | pub fn hammer(string: &mut Waveguide, stiffness: f32, size: usize, velocity: f32, position: usize, time: f32) {
Dec 17 18:31:51.644 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 18:31:51.644 INFO [stderr]   |
Dec 17 18:31:51.644 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 17 18:31:51.644 INFO [stderr] 
Dec 17 18:31:51.644 INFO [stderr] warning: struct is never constructed: `IntegerAllPass`
Dec 17 18:31:51.644 INFO [stderr]  --> src/filter.rs:3:1
Dec 17 18:31:51.644 INFO [stderr]   |
Dec 17 18:31:51.644 INFO [stderr] 3 | pub struct IntegerAllPass { // Generic integer-delay allpass
Dec 17 18:31:51.644 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 18:31:51.644 INFO [stderr] 
Dec 17 18:31:51.644 INFO [stderr] warning: method is never used: `new`
Dec 17 18:31:51.644 INFO [stderr]   --> src/filter.rs:10:2
Dec 17 18:31:51.644 INFO [stderr]    |
Dec 17 18:31:51.644 INFO [stderr] 10 |     pub fn new(gain: f32, size: usize) -> Self {
Dec 17 18:31:51.644 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 18:31:51.644 INFO [stderr] 
Dec 17 18:31:51.644 INFO [stderr] warning: method is never used: `update`
Dec 17 18:31:51.644 INFO [stderr]   --> src/filter.rs:18:2
Dec 17 18:31:51.644 INFO [stderr]    |
Dec 17 18:31:51.644 INFO [stderr] 18 |     pub fn update(&mut self, input: f32) -> f32 {
Dec 17 18:31:51.644 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 18:31:51.644 INFO [stderr] 
Dec 17 18:31:51.664 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.13s
Dec 17 18:31:52.733 INFO running `"docker" "inspect" "13ccaae456ea9cd5b9f5b14357de75fe32c807e44ff66957abae211b3319b678"`
Dec 17 18:31:53.198 INFO running `"docker" "rm" "-f" "13ccaae456ea9cd5b9f5b14357de75fe32c807e44ff66957abae211b3319b678"`
Dec 17 18:31:53.480 INFO [stdout] 13ccaae456ea9cd5b9f5b14357de75fe32c807e44ff66957abae211b3319b678