[INFO] updating cached repository nutcase84/piano
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/nutcase84/piano
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/nutcase84/piano" "work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/nutcase84/piano"`
[INFO] [stderr] Cloning into 'work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/nutcase84/piano'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/nutcase84/piano" "work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/nutcase84/piano"`
[INFO] [stderr] Cloning into 'work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/nutcase84/piano'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] abe074523491d7b9e085aaf0d9c54c2831a44f40
[INFO] sha for GitHub repo nutcase84/piano: abe074523491d7b9e085aaf0d9c54c2831a44f40
[INFO] validating manifest of nutcase84/piano on toolchain master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of nutcase84/piano on toolchain try#7fea0229842e79db1159ea58ad9a653b288efee9
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing nutcase84/piano
[INFO] finished frobbing nutcase84/piano
[INFO] frobbed toml for nutcase84/piano written to work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/nutcase84/piano/Cargo.toml
[INFO] started frobbing nutcase84/piano
[INFO] finished frobbing nutcase84/piano
[INFO] frobbed toml for nutcase84/piano written to work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/nutcase84/piano/Cargo.toml
[INFO] crate nutcase84/piano has a lockfile. skipping
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing nutcase84/piano against master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54 for pr-57967
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-0/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/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" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "build" "--frozen"`
[INFO] [stdout] a6bb2e538889b15ca4d1f9f742e7f72574cd71eb0a8ee5ddcb62378fea9f8567
[INFO] running `"docker" "start" "-a" "a6bb2e538889b15ca4d1f9f742e7f72574cd71eb0a8ee5ddcb62378fea9f8567"`
[INFO] [stderr]    Compiling libloading v0.4.3
[INFO] [stderr]    Compiling rand v0.5.5
[INFO] [stderr]    Compiling num-traits v0.1.43
[INFO] [stderr]    Compiling vst v0.0.1
[INFO] [stderr]    Compiling piano v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variable `active_notes` is assigned to, but never used
[INFO] [stderr]   --> src/event.rs:34:10
[INFO] [stderr]    |
[INFO] [stderr] 34 |     let mut active_notes = 0; // could be useful later
[INFO] [stderr]    |             ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr]    = note: consider using `_active_notes` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]   --> src/filter.rs:54:7
[INFO] [stderr]    |
[INFO] [stderr] 54 |         for i in 0..buffer_size {
[INFO] [stderr]    |             ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `hammer`
[INFO] [stderr]  --> src/hammer.rs:4:1
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub fn hammer(string: &mut Waveguide, stiffness: f32, size: usize, velocity: f32, position: usize, time: f32) {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `IntegerAllPass`
[INFO] [stderr]  --> src/filter.rs:3:1
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub struct IntegerAllPass { // Generic integer-delay allpass
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/filter.rs:10:2
[INFO] [stderr]    |
[INFO] [stderr] 10 |     pub fn new(gain: f32, size: usize) -> Self {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `update`
[INFO] [stderr]   --> src/filter.rs:18:2
[INFO] [stderr]    |
[INFO] [stderr] 18 |     pub fn update(&mut self, input: f32) -> f32 {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.31s
[INFO] running `"docker" "inspect" "a6bb2e538889b15ca4d1f9f742e7f72574cd71eb0a8ee5ddcb62378fea9f8567"`
[INFO] running `"docker" "rm" "-f" "a6bb2e538889b15ca4d1f9f742e7f72574cd71eb0a8ee5ddcb62378fea9f8567"`
[INFO] [stdout] a6bb2e538889b15ca4d1f9f742e7f72574cd71eb0a8ee5ddcb62378fea9f8567
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-0/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/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" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "test" "--frozen" "--no-run"`
[INFO] [stdout] b646c40ebe4b1c4707c061a01cd577b51b7c873e57fb5d9fa5be84b8997f0bc5
[INFO] running `"docker" "start" "-a" "b646c40ebe4b1c4707c061a01cd577b51b7c873e57fb5d9fa5be84b8997f0bc5"`
[INFO] [stderr]    Compiling piano v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variable `active_notes` is assigned to, but never used
[INFO] [stderr]   --> src/event.rs:34:10
[INFO] [stderr]    |
[INFO] [stderr] 34 |     let mut active_notes = 0; // could be useful later
[INFO] [stderr]    |             ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr]    = note: consider using `_active_notes` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]   --> src/filter.rs:54:7
[INFO] [stderr]    |
[INFO] [stderr] 54 |         for i in 0..buffer_size {
[INFO] [stderr]    |             ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `hammer`
[INFO] [stderr]  --> src/hammer.rs:4:1
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub fn hammer(string: &mut Waveguide, stiffness: f32, size: usize, velocity: f32, position: usize, time: f32) {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `IntegerAllPass`
[INFO] [stderr]  --> src/filter.rs:3:1
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub struct IntegerAllPass { // Generic integer-delay allpass
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/filter.rs:10:2
[INFO] [stderr]    |
[INFO] [stderr] 10 |     pub fn new(gain: f32, size: usize) -> Self {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `update`
[INFO] [stderr]   --> src/filter.rs:18:2
[INFO] [stderr]    |
[INFO] [stderr] 18 |     pub fn update(&mut self, input: f32) -> f32 {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.39s
[INFO] running `"docker" "inspect" "b646c40ebe4b1c4707c061a01cd577b51b7c873e57fb5d9fa5be84b8997f0bc5"`
[INFO] running `"docker" "rm" "-f" "b646c40ebe4b1c4707c061a01cd577b51b7c873e57fb5d9fa5be84b8997f0bc5"`
[INFO] [stdout] b646c40ebe4b1c4707c061a01cd577b51b7c873e57fb5d9fa5be84b8997f0bc5
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-0/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/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" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "test" "--frozen"`
[INFO] [stdout] 5dc0aa6703f50d6bc663e1464b78da73aa882f6c4d8174f965944cc1add6d890
[INFO] running `"docker" "start" "-a" "5dc0aa6703f50d6bc663e1464b78da73aa882f6c4d8174f965944cc1add6d890"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/piano-229c4a62220c10d3
[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" "5dc0aa6703f50d6bc663e1464b78da73aa882f6c4d8174f965944cc1add6d890"`
[INFO] running `"docker" "rm" "-f" "5dc0aa6703f50d6bc663e1464b78da73aa882f6c4d8174f965944cc1add6d890"`
[INFO] [stdout] 5dc0aa6703f50d6bc663e1464b78da73aa882f6c4d8174f965944cc1add6d890