[INFO] cloning repository https://github.com/geom3trik/tuix_waveform_viewer
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/geom3trik/tuix_waveform_viewer" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgeom3trik%2Ftuix_waveform_viewer", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgeom3trik%2Ftuix_waveform_viewer'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 942f5a97a83048cd60f873d2262186e7a95af241
[INFO] building geom3trik/tuix_waveform_viewer against master#ad85bc524b1ad696e42061ad8338d382dffbdbe5 for pr-146237-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgeom3trik%2Ftuix_waveform_viewer" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/geom3trik/tuix_waveform_viewer
[INFO] finished tweaking git repo https://github.com/geom3trik/tuix_waveform_viewer
[INFO] tweaked toml for git repo https://github.com/geom3trik/tuix_waveform_viewer written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/geom3trik/tuix_waveform_viewer on toolchain ad85bc524b1ad696e42061ad8338d382dffbdbe5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/geom3trik/tuix_waveform_viewer already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating git repository `https://github.com/glowcoil/basedrop.git`
[INFO] [stderr]     Updating git repository `https://github.com/femtovg/femtovg`
[INFO] [stderr]     Updating git repository `https://github.com/ruuda/hound.git`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Updating git repository `https://github.com/geom3trik/tuix`
[INFO] [stderr]  Downloading crates ...
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 850e44979ecaab56f105590d7131d5613a5069057996860a6bdcc4f73af09566
[INFO] running `Command { std: "docker" "start" "-a" "850e44979ecaab56f105590d7131d5613a5069057996860a6bdcc4f73af09566", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "850e44979ecaab56f105590d7131d5613a5069057996860a6bdcc4f73af09566", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "850e44979ecaab56f105590d7131d5613a5069057996860a6bdcc4f73af09566", kill_on_drop: false }`
[INFO] [stdout] 850e44979ecaab56f105590d7131d5613a5069057996860a6bdcc4f73af09566
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0fbad0bd360d69496ea3a111c82a28f6b4f0733935cbbdefece6a348311a4344
[INFO] running `Command { std: "docker" "start" "-a" "0fbad0bd360d69496ea3a111c82a28f6b4f0733935cbbdefece6a348311a4344", kill_on_drop: false }`
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[INFO] [stderr]    Compiling basedrop v0.1.0 (https://github.com/glowcoil/basedrop.git#435dba1a)
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[INFO] [stderr]    Compiling hound v3.4.0 (https://github.com/ruuda/hound.git#fa88d577)
[INFO] [stderr]    Compiling femtovg v0.1.1 (https://github.com/femtovg/femtovg?branch=master#9ba9422b)
[INFO] [stderr]    Compiling tuix_core v0.1.0 (https://github.com/geom3trik/tuix?rev=b21984d82aa5ef6b1cb3349ae0f07386a04b410f#b21984d8)
[INFO] [stderr]    Compiling alsa v0.4.3
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[INFO] [stderr]    Compiling glutin v0.26.0
[INFO] [stderr]    Compiling tuix_glutin v0.1.0 (https://github.com/geom3trik/tuix?rev=b21984d82aa5ef6b1cb3349ae0f07386a04b410f#b21984d8)
[INFO] [stderr]    Compiling tuix v0.1.0 (https://github.com/geom3trik/tuix?rev=b21984d82aa5ef6b1cb3349ae0f07386a04b410f#b21984d8)
[INFO] [stderr]    Compiling wav_viewer v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::cmp::Ordering`
[INFO] [stdout]   --> src/main.rs:35:5
[INFO] [stdout]    |
[INFO] [stdout] 35 | use std::cmp::Ordering;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `I24` and `Sample`
[INFO] [stdout]   --> src/main.rs:37:19
[INFO] [stdout]    |
[INFO] [stdout] 37 | use dasp_sample::{Sample, I24};
[INFO] [stdout]    |                   ^^^^^^  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `for` iterator expression
[INFO] [stdout]     --> src/main.rs:1551:22
[INFO] [stdout]      |
[INFO] [stdout] 1551 |             for n in (first..last+1) {
[INFO] [stdout]      |                      ^             ^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 1551 -             for n in (first..last+1) {
[INFO] [stdout] 1551 +             for n in first..last+1 {
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:93:22
[INFO] [stdout]    |
[INFO] [stdout] 93 |     let (mut player, mut controller) = sample_player(&gc);
[INFO] [stdout]    |                      ----^^^^^^^^^^
[INFO] [stdout]    |                      |
[INFO] [stdout]    |                      help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `entity`
[INFO] [stdout]    --> src/main.rs:344:9
[INFO] [stdout]     |
[INFO] [stdout] 344 |         entity: Entity,
[INFO] [stdout]     |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_entity`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `loop_button`
[INFO] [stdout]    --> src/main.rs:665:17
[INFO] [stdout]     |
[INFO] [stdout] 665 |             let loop_button = Checkbox::new(true)
[INFO] [stdout]     |                 ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_loop_button`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `volume_slider`
[INFO] [stdout]    --> src/main.rs:695:13
[INFO] [stdout]     |
[INFO] [stdout] 695 |         let volume_slider = Slider::new()
[INFO] [stdout]     |             ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_volume_slider`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `file`
[INFO] [stdout]     --> src/main.rs:1536:21
[INFO] [stdout]      |
[INFO] [stdout] 1536 |         if let Some(file) = self.controller.file.as_ref() {
[INFO] [stdout]      |                     ^^^^ help: if this is intentional, prefix it with an underscore: `_file`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `time_axis_width`
[INFO] [stdout]     --> src/main.rs:1540:17
[INFO] [stdout]      |
[INFO] [stdout] 1540 |             let time_axis_width = state.data.get_width(self.time_axis);
[INFO] [stdout]      |                 ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_time_axis_width`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `state`
[INFO] [stdout]     --> src/main.rs:1814:28
[INFO] [stdout]      |
[INFO] [stdout] 1814 |     fn on_event(&mut self, state: &mut State, entity: Entity, event: &mut Event) {
[INFO] [stdout]      |                            ^^^^^ help: if this is intentional, prefix it with an underscore: `_state`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `entity`
[INFO] [stdout]     --> src/main.rs:1814:47
[INFO] [stdout]      |
[INFO] [stdout] 1814 |     fn on_event(&mut self, state: &mut State, entity: Entity, event: &mut Event) {
[INFO] [stdout]      |                                               ^^^^^^ help: if this is intentional, prefix it with an underscore: `_entity`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `event`
[INFO] [stdout]     --> src/main.rs:1814:63
[INFO] [stdout]      |
[INFO] [stdout] 1814 |     fn on_event(&mut self, state: &mut State, entity: Entity, event: &mut Event) {
[INFO] [stdout]      |                                                               ^^^^^ help: if this is intentional, prefix it with an underscore: `_event`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `ICON_MAGNET` is never used
[INFO] [stdout]   --> src/main.rs:11:7
[INFO] [stdout]    |
[INFO] [stdout] 11 | const ICON_MAGNET: &str = "\u{e7a1}";
[INFO] [stdout]    |       ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `time_label`, `value_label`, `collector`, and `scrollbar` are never read
[INFO] [stdout]    --> src/main.rs:215:5
[INFO] [stdout]     |
[INFO] [stdout] 194 | pub struct AppWidget {
[INFO] [stdout]     |            --------- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 215 |     time_label: Entity,
[INFO] [stdout]     |     ^^^^^^^^^^
[INFO] [stdout] 216 |     value_label: Entity,
[INFO] [stdout]     |     ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 231 |     collector: Collector,
[INFO] [stdout]     |     ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 239 |     scrollbar: Entity,
[INFO] [stdout]     |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `sample_rate` is never read
[INFO] [stdout]  --> src/audio_stream.rs:9:9
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub struct PlaybackContext<'a> {
[INFO] [stdout]   |            --------------- field in this struct
[INFO] [stdout] 8 |     pub buffer_size: usize,
[INFO] [stdout] 9 |     pub sample_rate: f64,
[INFO] [stdout]   |         ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/sample_player.rs:15:11
[INFO] [stdout]    |
[INFO] [stdout] 15 |     Scrub(f64),
[INFO] [stdout]    |     ----- ^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 15 -     Scrub(f64),
[INFO] [stdout] 15 +     Scrub(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/main.rs:103:9
[INFO] [stdout]     |
[INFO] [stdout] 103 |         stream.play();
[INFO] [stdout]     |         ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 103 |         let _ = stream.play();
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2m 08s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: nom v6.1.0, rustybuzz v0.3.0
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 2`
[INFO] running `Command { std: "docker" "inspect" "0fbad0bd360d69496ea3a111c82a28f6b4f0733935cbbdefece6a348311a4344", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0fbad0bd360d69496ea3a111c82a28f6b4f0733935cbbdefece6a348311a4344", kill_on_drop: false }`
[INFO] [stdout] 0fbad0bd360d69496ea3a111c82a28f6b4f0733935cbbdefece6a348311a4344
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0cff9838ed8803b705fca1ec10e520fe9a4c6b0b94baa6c4f7966087b133f24c
[INFO] running `Command { std: "docker" "start" "-a" "0cff9838ed8803b705fca1ec10e520fe9a4c6b0b94baa6c4f7966087b133f24c", kill_on_drop: false }`
[INFO] [stderr]    Compiling wav_viewer v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::cmp::Ordering`
[INFO] [stdout]   --> src/main.rs:35:5
[INFO] [stdout]    |
[INFO] [stdout] 35 | use std::cmp::Ordering;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `I24` and `Sample`
[INFO] [stdout]   --> src/main.rs:37:19
[INFO] [stdout]    |
[INFO] [stdout] 37 | use dasp_sample::{Sample, I24};
[INFO] [stdout]    |                   ^^^^^^  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `for` iterator expression
[INFO] [stdout]     --> src/main.rs:1551:22
[INFO] [stdout]      |
[INFO] [stdout] 1551 |             for n in (first..last+1) {
[INFO] [stdout]      |                      ^             ^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 1551 -             for n in (first..last+1) {
[INFO] [stdout] 1551 +             for n in first..last+1 {
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:93:22
[INFO] [stdout]    |
[INFO] [stdout] 93 |     let (mut player, mut controller) = sample_player(&gc);
[INFO] [stdout]    |                      ----^^^^^^^^^^
[INFO] [stdout]    |                      |
[INFO] [stdout]    |                      help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `entity`
[INFO] [stdout]    --> src/main.rs:344:9
[INFO] [stdout]     |
[INFO] [stdout] 344 |         entity: Entity,
[INFO] [stdout]     |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_entity`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `loop_button`
[INFO] [stdout]    --> src/main.rs:665:17
[INFO] [stdout]     |
[INFO] [stdout] 665 |             let loop_button = Checkbox::new(true)
[INFO] [stdout]     |                 ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_loop_button`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `volume_slider`
[INFO] [stdout]    --> src/main.rs:695:13
[INFO] [stdout]     |
[INFO] [stdout] 695 |         let volume_slider = Slider::new()
[INFO] [stdout]     |             ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_volume_slider`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `file`
[INFO] [stdout]     --> src/main.rs:1536:21
[INFO] [stdout]      |
[INFO] [stdout] 1536 |         if let Some(file) = self.controller.file.as_ref() {
[INFO] [stdout]      |                     ^^^^ help: if this is intentional, prefix it with an underscore: `_file`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `time_axis_width`
[INFO] [stdout]     --> src/main.rs:1540:17
[INFO] [stdout]      |
[INFO] [stdout] 1540 |             let time_axis_width = state.data.get_width(self.time_axis);
[INFO] [stdout]      |                 ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_time_axis_width`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `state`
[INFO] [stdout]     --> src/main.rs:1814:28
[INFO] [stdout]      |
[INFO] [stdout] 1814 |     fn on_event(&mut self, state: &mut State, entity: Entity, event: &mut Event) {
[INFO] [stdout]      |                            ^^^^^ help: if this is intentional, prefix it with an underscore: `_state`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `entity`
[INFO] [stdout]     --> src/main.rs:1814:47
[INFO] [stdout]      |
[INFO] [stdout] 1814 |     fn on_event(&mut self, state: &mut State, entity: Entity, event: &mut Event) {
[INFO] [stdout]      |                                               ^^^^^^ help: if this is intentional, prefix it with an underscore: `_entity`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `event`
[INFO] [stdout]     --> src/main.rs:1814:63
[INFO] [stdout]      |
[INFO] [stdout] 1814 |     fn on_event(&mut self, state: &mut State, entity: Entity, event: &mut Event) {
[INFO] [stdout]      |                                                               ^^^^^ help: if this is intentional, prefix it with an underscore: `_event`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `ICON_MAGNET` is never used
[INFO] [stdout]   --> src/main.rs:11:7
[INFO] [stdout]    |
[INFO] [stdout] 11 | const ICON_MAGNET: &str = "\u{e7a1}";
[INFO] [stdout]    |       ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `time_label`, `value_label`, `collector`, and `scrollbar` are never read
[INFO] [stdout]    --> src/main.rs:215:5
[INFO] [stdout]     |
[INFO] [stdout] 194 | pub struct AppWidget {
[INFO] [stdout]     |            --------- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 215 |     time_label: Entity,
[INFO] [stdout]     |     ^^^^^^^^^^
[INFO] [stdout] 216 |     value_label: Entity,
[INFO] [stdout]     |     ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 231 |     collector: Collector,
[INFO] [stdout]     |     ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 239 |     scrollbar: Entity,
[INFO] [stdout]     |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `sample_rate` is never read
[INFO] [stdout]  --> src/audio_stream.rs:9:9
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub struct PlaybackContext<'a> {
[INFO] [stdout]   |            --------------- field in this struct
[INFO] [stdout] 8 |     pub buffer_size: usize,
[INFO] [stdout] 9 |     pub sample_rate: f64,
[INFO] [stdout]   |         ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/sample_player.rs:15:11
[INFO] [stdout]    |
[INFO] [stdout] 15 |     Scrub(f64),
[INFO] [stdout]    |     ----- ^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 15 -     Scrub(f64),
[INFO] [stdout] 15 +     Scrub(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/main.rs:103:9
[INFO] [stdout]     |
[INFO] [stdout] 103 |         stream.play();
[INFO] [stdout]     |         ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 103 |         let _ = stream.play();
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.18s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: nom v6.1.0, rustybuzz v0.3.0
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 2`
[INFO] running `Command { std: "docker" "inspect" "0cff9838ed8803b705fca1ec10e520fe9a4c6b0b94baa6c4f7966087b133f24c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0cff9838ed8803b705fca1ec10e520fe9a4c6b0b94baa6c4f7966087b133f24c", kill_on_drop: false }`
[INFO] [stdout] 0cff9838ed8803b705fca1ec10e520fe9a4c6b0b94baa6c4f7966087b133f24c
