[INFO] cloning repository https://github.com/Joe-Jones/midi [INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Joe-Jones/midi" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJoe-Jones%2Fmidi"` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJoe-Jones%2Fmidi'... [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] ec1b05f593396e80cd8c701df37a6472c196e1db [INFO] checking Joe-Jones/midi against try#ea663bba38739867a4b75ac820991b4f5d093c3b for pr-62262-1 [INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJoe-Jones%2Fmidi" "/workspace/builds/worker-12/source"` [INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/Joe-Jones/midi on toolchain ea663bba38739867a4b75ac820991b4f5d093c3b [INFO] running `"/workspace/cargo-home/bin/cargo" "+ea663bba38739867a4b75ac820991b4f5d093c3b" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started tweaking git repo https://github.com/Joe-Jones/midi [INFO] finished tweaking git repo https://github.com/Joe-Jones/midi [INFO] tweaked toml for git repo https://github.com/Joe-Jones/midi written to /workspace/builds/worker-12/source/Cargo.toml [INFO] crate git repo https://github.com/Joe-Jones/midi already has a lockfile, it will not be regenerated [INFO] running `"/workspace/cargo-home/bin/cargo" "+ea663bba38739867a4b75ac820991b4f5d093c3b" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded jack v0.5.3 [INFO] [stderr] Downloaded time_calc v0.12.1 [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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=forbid" "-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" "+ea663bba38739867a4b75ac820991b4f5d093c3b" "check" "--frozen" "--all" "--all-targets"` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] 0e539dfcfe4f4d43b46bae8cc9b97b46381b83bf293163c39256dc2eb6af5c8a [INFO] running `"docker" "start" "-a" "0e539dfcfe4f4d43b46bae8cc9b97b46381b83bf293163c39256dc2eb6af5c8a"` [INFO] [stderr] Compiling libloading v0.4.1 [INFO] [stderr] Checking time_calc v0.12.1 [INFO] [stderr] Checking jack-sys v0.1.5 [INFO] [stderr] Checking jack v0.5.3 [INFO] [stderr] Checking steps v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] warning: unused variable: `pattern` [INFO] [stderr] --> src/main.rs:66:15 [INFO] [stderr] | [INFO] [stderr] 66 | fn next_event(pattern: &Pattern, cursor: & mut PatternCursor) -> Option<(f64, u8)> { [INFO] [stderr] | ^^^^^^^ help: consider prefixing with an underscore: `_pattern` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `cursor` [INFO] [stderr] --> src/main.rs:66:34 [INFO] [stderr] | [INFO] [stderr] 66 | fn next_event(pattern: &Pattern, cursor: & mut PatternCursor) -> Option<(f64, u8)> { [INFO] [stderr] | ^^^^^^ help: consider prefixing with an underscore: `_cursor` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `cursor` [INFO] [stderr] --> src/main.rs:70:12 [INFO] [stderr] | [INFO] [stderr] 70 | fn advance(cursor: &mut PatternCursor) { [INFO] [stderr] | ^^^^^^ help: consider prefixing with an underscore: `_cursor` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `kick_drum` [INFO] [stderr] --> src/main.rs:99:9 [INFO] [stderr] | [INFO] [stderr] 99 | let kick_drum = Pattern{ steps_per_bar: 4, pattern: kick_drum_pattern, note: 36 }; [INFO] [stderr] | ^^^^^^^^^ help: consider prefixing with an underscore: `_kick_drum` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `snare_drum` [INFO] [stderr] --> src/main.rs:100:9 [INFO] [stderr] | [INFO] [stderr] 100 | let snare_drum = Pattern{ steps_per_bar: 4, pattern: snare_drum_pattern, note: 37 }; [INFO] [stderr] | ^^^^^^^^^^ help: consider prefixing with an underscore: `_snare_drum` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `frames_per_bar` [INFO] [stderr] --> src/main.rs:102:9 [INFO] [stderr] | [INFO] [stderr] 102 | let frames_per_bar : JackFrames = u32::try_from(Bars(1).samples(bpm, time_signature, sample_frequency)) [INFO] [stderr] | ^^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_frames_per_bar` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `frames_into_bar` [INFO] [stderr] --> src/main.rs:106:13 [INFO] [stderr] | [INFO] [stderr] 106 | let mut frames_into_bar = 0; [INFO] [stderr] | ^^^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_frames_into_bar` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `bpm` [INFO] [stderr] --> src/main.rs:24:12 [INFO] [stderr] | [INFO] [stderr] 24 | fn new(bpm: &Bpm, sample_frequency : SampleHz, time_signature : &TimeSig, steps_per_bar: usize, pattern: Vec) -> PatternPlayer { [INFO] [stderr] | ^^^ help: consider prefixing with an underscore: `_bpm` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `sample_frequency` [INFO] [stderr] --> src/main.rs:24:23 [INFO] [stderr] | [INFO] [stderr] 24 | fn new(bpm: &Bpm, sample_frequency : SampleHz, time_signature : &TimeSig, steps_per_bar: usize, pattern: Vec) -> PatternPlayer { [INFO] [stderr] | ^^^^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_sample_frequency` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `time_signature` [INFO] [stderr] --> src/main.rs:24:52 [INFO] [stderr] | [INFO] [stderr] 24 | fn new(bpm: &Bpm, sample_frequency : SampleHz, time_signature : &TimeSig, steps_per_bar: usize, pattern: Vec) -> PatternPlayer { [INFO] [stderr] | ^^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_time_signature` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `steps_per_bar` [INFO] [stderr] --> src/main.rs:24:79 [INFO] [stderr] | [INFO] [stderr] 24 | fn new(bpm: &Bpm, sample_frequency : SampleHz, time_signature : &TimeSig, steps_per_bar: usize, pattern: Vec) -> PatternPlayer { [INFO] [stderr] | ^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_steps_per_bar` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:106:9 [INFO] [stderr] | [INFO] [stderr] 106 | let mut frames_into_bar = 0; [INFO] [stderr] | ----^^^^^^^^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_mut)]` on by default [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `PatternPlayer` [INFO] [stderr] --> src/main.rs:17:1 [INFO] [stderr] | [INFO] [stderr] 17 | struct PatternPlayer { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: method is never used: `new` [INFO] [stderr] --> src/main.rs:24:5 [INFO] [stderr] | [INFO] [stderr] 24 | fn new(bpm: &Bpm, sample_frequency : SampleHz, time_signature : &TimeSig, steps_per_bar: usize, pattern: Vec) -> PatternPlayer { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: field is never used: `steps_per_bar` [INFO] [stderr] --> src/main.rs:35:5 [INFO] [stderr] | [INFO] [stderr] 35 | steps_per_bar: u32, [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: field is never used: `pattern` [INFO] [stderr] --> src/main.rs:36:5 [INFO] [stderr] | [INFO] [stderr] 36 | pattern: Vec, [INFO] [stderr] | ^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: field is never used: `note` [INFO] [stderr] --> src/main.rs:37:5 [INFO] [stderr] | [INFO] [stderr] 37 | note: u8, [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `next_event` [INFO] [stderr] --> src/main.rs:42:5 [INFO] [stderr] | [INFO] [stderr] 42 | fn next_event(&self, position: f64) -> Result, String> { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `PatternCursor` [INFO] [stderr] --> src/main.rs:58:1 [INFO] [stderr] | [INFO] [stderr] 58 | struct PatternCursor { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `init_patern_cursor` [INFO] [stderr] --> src/main.rs:62:1 [INFO] [stderr] | [INFO] [stderr] 62 | fn init_patern_cursor(cursor: &mut PatternCursor) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `next_event` [INFO] [stderr] --> src/main.rs:66:1 [INFO] [stderr] | [INFO] [stderr] 66 | fn next_event(pattern: &Pattern, cursor: & mut PatternCursor) -> Option<(f64, u8)> { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `advance` [INFO] [stderr] --> src/main.rs:70:1 [INFO] [stderr] | [INFO] [stderr] 70 | fn advance(cursor: &mut PatternCursor) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: the feature `try_from` has been stable since 1.34.0 and no longer requires an attribute to enable [INFO] [stderr] --> src/main.rs:1:12 [INFO] [stderr] | [INFO] [stderr] 1 | #![feature(try_from)] [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(stable_features)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `pattern` [INFO] [stderr] --> src/main.rs:66:15 [INFO] [stderr] | [INFO] [stderr] 66 | fn next_event(pattern: &Pattern, cursor: & mut PatternCursor) -> Option<(f64, u8)> { [INFO] [stderr] | ^^^^^^^ help: consider prefixing with an underscore: `_pattern` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `cursor` [INFO] [stderr] --> src/main.rs:66:34 [INFO] [stderr] | [INFO] [stderr] 66 | fn next_event(pattern: &Pattern, cursor: & mut PatternCursor) -> Option<(f64, u8)> { [INFO] [stderr] | ^^^^^^ help: consider prefixing with an underscore: `_cursor` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `cursor` [INFO] [stderr] --> src/main.rs:70:12 [INFO] [stderr] | [INFO] [stderr] 70 | fn advance(cursor: &mut PatternCursor) { [INFO] [stderr] | ^^^^^^ help: consider prefixing with an underscore: `_cursor` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `kick_drum` [INFO] [stderr] --> src/main.rs:99:9 [INFO] [stderr] | [INFO] [stderr] 99 | let kick_drum = Pattern{ steps_per_bar: 4, pattern: kick_drum_pattern, note: 36 }; [INFO] [stderr] | ^^^^^^^^^ help: consider prefixing with an underscore: `_kick_drum` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `snare_drum` [INFO] [stderr] --> src/main.rs:100:9 [INFO] [stderr] | [INFO] [stderr] 100 | let snare_drum = Pattern{ steps_per_bar: 4, pattern: snare_drum_pattern, note: 37 }; [INFO] [stderr] | ^^^^^^^^^^ help: consider prefixing with an underscore: `_snare_drum` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `frames_per_bar` [INFO] [stderr] --> src/main.rs:102:9 [INFO] [stderr] | [INFO] [stderr] 102 | let frames_per_bar : JackFrames = u32::try_from(Bars(1).samples(bpm, time_signature, sample_frequency)) [INFO] [stderr] | ^^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_frames_per_bar` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `frames_into_bar` [INFO] [stderr] --> src/main.rs:106:13 [INFO] [stderr] | [INFO] [stderr] 106 | let mut frames_into_bar = 0; [INFO] [stderr] | ^^^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_frames_into_bar` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `bpm` [INFO] [stderr] --> src/main.rs:24:12 [INFO] [stderr] | [INFO] [stderr] 24 | fn new(bpm: &Bpm, sample_frequency : SampleHz, time_signature : &TimeSig, steps_per_bar: usize, pattern: Vec) -> PatternPlayer { [INFO] [stderr] | ^^^ help: consider prefixing with an underscore: `_bpm` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `sample_frequency` [INFO] [stderr] --> src/main.rs:24:23 [INFO] [stderr] | [INFO] [stderr] 24 | fn new(bpm: &Bpm, sample_frequency : SampleHz, time_signature : &TimeSig, steps_per_bar: usize, pattern: Vec) -> PatternPlayer { [INFO] [stderr] | ^^^^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_sample_frequency` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `time_signature` [INFO] [stderr] --> src/main.rs:24:52 [INFO] [stderr] | [INFO] [stderr] 24 | fn new(bpm: &Bpm, sample_frequency : SampleHz, time_signature : &TimeSig, steps_per_bar: usize, pattern: Vec) -> PatternPlayer { [INFO] [stderr] | ^^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_time_signature` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `steps_per_bar` [INFO] [stderr] --> src/main.rs:24:79 [INFO] [stderr] | [INFO] [stderr] 24 | fn new(bpm: &Bpm, sample_frequency : SampleHz, time_signature : &TimeSig, steps_per_bar: usize, pattern: Vec) -> PatternPlayer { [INFO] [stderr] | ^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_steps_per_bar` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:106:9 [INFO] [stderr] | [INFO] [stderr] 106 | let mut frames_into_bar = 0; [INFO] [stderr] | ----^^^^^^^^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_mut)]` on by default [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `PatternPlayer` [INFO] [stderr] --> src/main.rs:17:1 [INFO] [stderr] | [INFO] [stderr] 17 | struct PatternPlayer { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: method is never used: `new` [INFO] [stderr] --> src/main.rs:24:5 [INFO] [stderr] | [INFO] [stderr] 24 | fn new(bpm: &Bpm, sample_frequency : SampleHz, time_signature : &TimeSig, steps_per_bar: usize, pattern: Vec) -> PatternPlayer { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: field is never used: `steps_per_bar` [INFO] [stderr] --> src/main.rs:35:5 [INFO] [stderr] | [INFO] [stderr] 35 | steps_per_bar: u32, [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: field is never used: `pattern` [INFO] [stderr] --> src/main.rs:36:5 [INFO] [stderr] | [INFO] [stderr] 36 | pattern: Vec, [INFO] [stderr] | ^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: field is never used: `note` [INFO] [stderr] --> src/main.rs:37:5 [INFO] [stderr] | [INFO] [stderr] 37 | note: u8, [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `next_event` [INFO] [stderr] --> src/main.rs:42:5 [INFO] [stderr] | [INFO] [stderr] 42 | fn next_event(&self, position: f64) -> Result, String> { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `PatternCursor` [INFO] [stderr] --> src/main.rs:58:1 [INFO] [stderr] | [INFO] [stderr] 58 | struct PatternCursor { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `init_patern_cursor` [INFO] [stderr] --> src/main.rs:62:1 [INFO] [stderr] | [INFO] [stderr] 62 | fn init_patern_cursor(cursor: &mut PatternCursor) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `next_event` [INFO] [stderr] --> src/main.rs:66:1 [INFO] [stderr] | [INFO] [stderr] 66 | fn next_event(pattern: &Pattern, cursor: & mut PatternCursor) -> Option<(f64, u8)> { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `advance` [INFO] [stderr] --> src/main.rs:70:1 [INFO] [stderr] | [INFO] [stderr] 70 | fn advance(cursor: &mut PatternCursor) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: the feature `try_from` has been stable since 1.34.0 and no longer requires an attribute to enable [INFO] [stderr] --> src/main.rs:1:12 [INFO] [stderr] | [INFO] [stderr] 1 | #![feature(try_from)] [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(stable_features)]` on by default [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 6.27s [INFO] running `"docker" "inspect" "0e539dfcfe4f4d43b46bae8cc9b97b46381b83bf293163c39256dc2eb6af5c8a"` [INFO] running `"docker" "rm" "-f" "0e539dfcfe4f4d43b46bae8cc9b97b46381b83bf293163c39256dc2eb6af5c8a"` [INFO] [stdout] 0e539dfcfe4f4d43b46bae8cc9b97b46381b83bf293163c39256dc2eb6af5c8a