[INFO] cloning repository https://github.com/cursorminer/metaloop
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/cursorminer/metaloop" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcursorminer%2Fmetaloop", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcursorminer%2Fmetaloop'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f78703f9cb34c6cd2ad6e721de87bc6f0d2fcaed
[INFO] testing cursorminer/metaloop against 1.86.0 for beta-1.87-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcursorminer%2Fmetaloop" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/cursorminer/metaloop on toolchain 1.86.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.86.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-4-tc1/source/.cargo/config
[INFO] started tweaking git repo https://github.com/cursorminer/metaloop
[INFO] finished tweaking git repo https://github.com/cursorminer/metaloop
[INFO] tweaked toml for git repo https://github.com/cursorminer/metaloop written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/cursorminer/metaloop 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" "+1.86.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating git repository `https://github.com/robbert-vdh/nih-plug.git`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Updating git repository `https://github.com/nicokoch/reflink.git`
[INFO] [stderr]     Updating git repository `https://github.com/robbert-vdh/clap-sys.git`
[INFO] [stderr]     Updating git repository `https://github.com/robbert-vdh/vst3-sys.git`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded num_threads v0.1.7
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+1.86.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c10184959df6ee052c5c046fc9d9a16fa7e4a51d80f2e5f8533526105cefeedc
[INFO] running `Command { std: "docker" "start" "-a" "c10184959df6ee052c5c046fc9d9a16fa7e4a51d80f2e5f8533526105cefeedc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c10184959df6ee052c5c046fc9d9a16fa7e4a51d80f2e5f8533526105cefeedc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c10184959df6ee052c5c046fc9d9a16fa7e4a51d80f2e5f8533526105cefeedc", kill_on_drop: false }`
[INFO] [stdout] c10184959df6ee052c5c046fc9d9a16fa7e4a51d80f2e5f8533526105cefeedc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+1.86.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9a31ea555f328c00c6276d7645795b89298bf6fa065516cd304f2dc9c3704ef1
[INFO] running `Command { std: "docker" "start" "-a" "9a31ea555f328c00c6276d7645795b89298bf6fa065516cd304f2dc9c3704ef1", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.85
[INFO] [stderr]    Compiling unicode-ident v1.0.12
[INFO] [stderr]    Compiling libc v0.2.155
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[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling itoa v1.0.11
[INFO] [stderr]    Compiling num-conv v0.1.0
[INFO] [stderr]    Compiling time-core v0.1.2
[INFO] [stderr]    Compiling cc v1.0.98
[INFO] [stderr]    Compiling serde v1.0.203
[INFO] [stderr]    Compiling parking_lot_core v0.9.10
[INFO] [stderr]    Compiling powerfmt v0.2.0
[INFO] [stderr]    Compiling lock_api v0.4.12
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling time-macros v0.2.18
[INFO] [stderr]    Compiling deranged v0.3.11
[INFO] [stderr]    Compiling scopeguard v1.2.0
[INFO] [stderr]    Compiling gimli v0.29.0
[INFO] [stderr]    Compiling memchr v2.7.2
[INFO] [stderr]    Compiling quote v1.0.36
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.18
[INFO] [stderr]    Compiling syn v2.0.66
[INFO] [stderr]    Compiling anyhow v1.0.86
[INFO] [stderr]    Compiling num_threads v0.1.7
[INFO] [stderr]    Compiling smallvec v1.13.2
[INFO] [stderr]    Compiling serde_json v1.0.117
[INFO] [stderr]    Compiling backtrace v0.3.72
[INFO] [stderr]    Compiling adler v1.0.2
[INFO] [stderr]    Compiling miniz_oxide v0.7.3
[INFO] [stderr]    Compiling crossbeam-deque v0.8.5
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling object v0.35.0
[INFO] [stderr]    Compiling crossbeam-channel v0.5.13
[INFO] [stderr]    Compiling crossbeam-queue v0.3.11
[INFO] [stderr]    Compiling once_cell v1.19.0
[INFO] [stderr]    Compiling time v0.3.36
[INFO] [stderr]    Compiling termcolor v1.4.1
[INFO] [stderr]    Compiling ryu v1.0.18
[INFO] [stderr]    Compiling log v0.4.21
[INFO] [stderr]    Compiling rustc-demangle v0.1.24
[INFO] [stderr]    Compiling crossbeam v0.8.4
[INFO] [stderr]    Compiling parking_lot v0.12.3
[INFO] [stderr]    Compiling addr2line v0.22.0
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling nih_log v0.3.1
[INFO] [stderr]    Compiling atomic_float v0.1.0
[INFO] [stderr]    Compiling widestring v1.1.0
[INFO] [stderr]    Compiling atomic_refcell v0.1.13
[INFO] [stderr]    Compiling anymap v1.0.0-beta.2
[INFO] [stderr]    Compiling midi-consts v0.1.0
[INFO] [stderr]    Compiling raw-window-handle v0.5.2
[INFO] [stderr]    Compiling clap-sys v0.3.0 (https://github.com/robbert-vdh/clap-sys.git?branch=feature%2Fcstr-macro#523a5f8a)
[INFO] [stderr]    Compiling approx v0.5.1
[INFO] [stderr]    Compiling serde_derive v1.0.203
[INFO] [stderr]    Compiling vst3-com-macros-support v0.2.0 (https://github.com/robbert-vdh/vst3-sys.git?branch=fix%2Fdrop-box-from-raw#b3ff4d77)
[INFO] [stderr]    Compiling nih_plug_derive v0.1.0 (https://github.com/robbert-vdh/nih-plug.git#cd9b589d)
[INFO] [stderr]    Compiling vst3-com-macros v0.2.0 (https://github.com/robbert-vdh/vst3-sys.git?branch=fix%2Fdrop-box-from-raw#b3ff4d77)
[INFO] [stderr]    Compiling vst3-com v0.1.0 (https://github.com/robbert-vdh/vst3-sys.git?branch=fix%2Fdrop-box-from-raw#b3ff4d77)
[INFO] [stderr]    Compiling vst3-sys v0.1.0 (https://github.com/robbert-vdh/vst3-sys.git?branch=fix%2Fdrop-box-from-raw#b3ff4d77)
[INFO] [stderr]    Compiling nih_plug v0.0.0 (https://github.com/robbert-vdh/nih-plug.git#cd9b589d)
[INFO] [stderr]    Compiling metaloop v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `wrapper::vst3::vst3_sys::vst::LegacyMidiCCOutEvent`
[INFO] [stdout]  --> src/lib.rs:1:28
[INFO] [stdout]   |
[INFO] [stdout] 1 | use nih_plug::{prelude::*, wrapper::vst3::vst3_sys::vst::LegacyMidiCCOutEvent};
[INFO] [stdout]   |                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:175:17
[INFO] [stdout]     |
[INFO] [stdout] 175 |             let mut left = true;
[INFO] [stdout]     |                 ----^^^^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `seconds_to_beats` is never used
[INFO] [stdout]   --> src/grain_looper.rs:33:8
[INFO] [stdout]    |
[INFO] [stdout] 33 | pub fn seconds_to_beats(seconds: f32, tempo: f32) -> f32 {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `beats_to_seconds` is never used
[INFO] [stdout]   --> src/grain_looper.rs:37:8
[INFO] [stdout]    |
[INFO] [stdout] 37 | pub fn beats_to_seconds(beats: f32, tempo: f32) -> f32 {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `seconds_to_samples` is never used
[INFO] [stdout]   --> src/grain_looper.rs:41:8
[INFO] [stdout]    |
[INFO] [stdout] 41 | pub fn seconds_to_samples(seconds: f32, sample_rate: f32) -> usize {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `previous_grid_in_beats` is never used
[INFO] [stdout]   --> src/loop_scheduler.rs:38:4
[INFO] [stdout]    |
[INFO] [stdout] 38 | fn previous_grid_in_beats(
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `all_near` is never used
[INFO] [stdout]  --> src/test_utils.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn all_near(a: &Vec<f32>, b: &Vec<f32>, epsilon: f32) {
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 52.71s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: anymap v1.0.0-beta.2
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] running `Command { std: "docker" "inspect" "9a31ea555f328c00c6276d7645795b89298bf6fa065516cd304f2dc9c3704ef1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9a31ea555f328c00c6276d7645795b89298bf6fa065516cd304f2dc9c3704ef1", kill_on_drop: false }`
[INFO] [stdout] 9a31ea555f328c00c6276d7645795b89298bf6fa065516cd304f2dc9c3704ef1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+1.86.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5ba2a67f8cea414f9092329ab3ab7c74f866a2b12aa61ed9cbaac3c876292229
[INFO] running `Command { std: "docker" "start" "-a" "5ba2a67f8cea414f9092329ab3ab7c74f866a2b12aa61ed9cbaac3c876292229", kill_on_drop: false }`
[INFO] [stderr]    Compiling metaloop v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `wrapper::vst3::vst3_sys::vst::LegacyMidiCCOutEvent`
[INFO] [stdout]  --> src/lib.rs:1:28
[INFO] [stdout]   |
[INFO] [stdout] 1 | use nih_plug::{prelude::*, wrapper::vst3::vst3_sys::vst::LegacyMidiCCOutEvent};
[INFO] [stdout]   |                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:175:17
[INFO] [stdout]     |
[INFO] [stdout] 175 |             let mut left = true;
[INFO] [stdout]     |                 ----^^^^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `seconds_to_beats` is never used
[INFO] [stdout]   --> src/grain_looper.rs:33:8
[INFO] [stdout]    |
[INFO] [stdout] 33 | pub fn seconds_to_beats(seconds: f32, tempo: f32) -> f32 {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `beats_to_seconds` is never used
[INFO] [stdout]   --> src/grain_looper.rs:37:8
[INFO] [stdout]    |
[INFO] [stdout] 37 | pub fn beats_to_seconds(beats: f32, tempo: f32) -> f32 {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `seconds_to_samples` is never used
[INFO] [stdout]   --> src/grain_looper.rs:41:8
[INFO] [stdout]    |
[INFO] [stdout] 41 | pub fn seconds_to_samples(seconds: f32, sample_rate: f32) -> usize {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `previous_grid_in_beats` is never used
[INFO] [stdout]   --> src/loop_scheduler.rs:38:4
[INFO] [stdout]    |
[INFO] [stdout] 38 | fn previous_grid_in_beats(
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `all_near` is never used
[INFO] [stdout]  --> src/test_utils.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn all_near(a: &Vec<f32>, b: &Vec<f32>, epsilon: f32) {
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `wrapper::vst3::vst3_sys::vst::LegacyMidiCCOutEvent`
[INFO] [stdout]  --> src/lib.rs:1:28
[INFO] [stdout]   |
[INFO] [stdout] 1 | use nih_plug::{prelude::*, wrapper::vst3::vst3_sys::vst::LegacyMidiCCOutEvent};
[INFO] [stdout]   |                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::test_utils::all_near`
[INFO] [stdout]    --> src/grain_looper.rs:237:9
[INFO] [stdout]     |
[INFO] [stdout] 237 |     use crate::test_utils::all_near;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:175:17
[INFO] [stdout]     |
[INFO] [stdout] 175 |             let mut left = true;
[INFO] [stdout]     |                 ----^^^^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `seconds_to_beats` is never used
[INFO] [stdout]   --> src/grain_looper.rs:33:8
[INFO] [stdout]    |
[INFO] [stdout] 33 | pub fn seconds_to_beats(seconds: f32, tempo: f32) -> f32 {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `beats_to_seconds` is never used
[INFO] [stdout]   --> src/grain_looper.rs:37:8
[INFO] [stdout]    |
[INFO] [stdout] 37 | pub fn beats_to_seconds(beats: f32, tempo: f32) -> f32 {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `seconds_to_samples` is never used
[INFO] [stdout]   --> src/grain_looper.rs:41:8
[INFO] [stdout]    |
[INFO] [stdout] 41 | pub fn seconds_to_samples(seconds: f32, sample_rate: f32) -> usize {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `sample_rate` is never used
[INFO] [stdout]    --> src/grain_player.rs:227:11
[INFO] [stdout]     |
[INFO] [stdout] 227 |     const sample_rate: f32 = 10.0;
[INFO] [stdout]     |           ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_grain_player_lengthen_grain` is never used
[INFO] [stdout]    --> src/grain_player.rs:491:8
[INFO] [stdout]     |
[INFO] [stdout] 491 |     fn test_grain_player_lengthen_grain() {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `previous_grid_in_beats` is never used
[INFO] [stdout]   --> src/loop_scheduler.rs:38:4
[INFO] [stdout]    |
[INFO] [stdout] 38 | fn previous_grid_in_beats(
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `sample_rate` should have an upper case name
[INFO] [stdout]    --> src/grain_player.rs:227:11
[INFO] [stdout]     |
[INFO] [stdout] 227 |     const sample_rate: f32 = 10.0;
[INFO] [stdout]     |           ^^^^^^^^^^^ help: convert the identifier to upper case: `SAMPLE_RATE`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_upper_case_globals)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 5.51s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: anymap v1.0.0-beta.2
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] running `Command { std: "docker" "inspect" "5ba2a67f8cea414f9092329ab3ab7c74f866a2b12aa61ed9cbaac3c876292229", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5ba2a67f8cea414f9092329ab3ab7c74f866a2b12aa61ed9cbaac3c876292229", kill_on_drop: false }`
[INFO] [stdout] 5ba2a67f8cea414f9092329ab3ab7c74f866a2b12aa61ed9cbaac3c876292229
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+1.86.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] a0e2c2d067a30b57b075e64b5c4913817ef7f3d25ad005d76ef594e1de2c7706
[INFO] running `Command { std: "docker" "start" "-a" "a0e2c2d067a30b57b075e64b5c4913817ef7f3d25ad005d76ef594e1de2c7706", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `wrapper::vst3::vst3_sys::vst::LegacyMidiCCOutEvent`
[INFO] [stderr]  --> src/lib.rs:1:28
[INFO] [stderr]   |
[INFO] [stderr] 1 | use nih_plug::{prelude::*, wrapper::vst3::vst3_sys::vst::LegacyMidiCCOutEvent};
[INFO] [stderr]   |                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/lib.rs:175:17
[INFO] [stderr]     |
[INFO] [stderr] 175 |             let mut left = true;
[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: function `seconds_to_beats` is never used
[INFO] [stderr]   --> src/grain_looper.rs:33:8
[INFO] [stderr]    |
[INFO] [stderr] 33 | pub fn seconds_to_beats(seconds: f32, tempo: f32) -> f32 {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function `beats_to_seconds` is never used
[INFO] [stderr]   --> src/grain_looper.rs:37:8
[INFO] [stderr]    |
[INFO] [stderr] 37 | pub fn beats_to_seconds(beats: f32, tempo: f32) -> f32 {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `seconds_to_samples` is never used
[INFO] [stderr]   --> src/grain_looper.rs:41:8
[INFO] [stderr]    |
[INFO] [stderr] 41 | pub fn seconds_to_samples(seconds: f32, sample_rate: f32) -> usize {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `previous_grid_in_beats` is never used
[INFO] [stderr]   --> src/loop_scheduler.rs:38:4
[INFO] [stderr]    |
[INFO] [stderr] 38 | fn previous_grid_in_beats(
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `all_near` is never used
[INFO] [stderr]  --> src/test_utils.rs:1:8
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub fn all_near(a: &Vec<f32>, b: &Vec<f32>, epsilon: f32) {
[INFO] [stderr]   |        ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `metaloop` (lib) generated 7 warnings (run `cargo fix --lib -p metaloop` to apply 2 suggestions)
[INFO] [stderr] warning: unused import: `crate::test_utils::all_near`
[INFO] [stderr]    --> src/grain_looper.rs:237:9
[INFO] [stderr]     |
[INFO] [stderr] 237 |     use crate::test_utils::all_near;
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant `sample_rate` is never used
[INFO] [stderr]    --> src/grain_player.rs:227:11
[INFO] [stderr]     |
[INFO] [stderr] 227 |     const sample_rate: f32 = 10.0;
[INFO] [stderr]     |           ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `test_grain_player_lengthen_grain` is never used
[INFO] [stderr]    --> src/grain_player.rs:491:8
[INFO] [stderr]     |
[INFO] [stderr] 491 |     fn test_grain_player_lengthen_grain() {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant `sample_rate` should have an upper case name
[INFO] [stderr]    --> src/grain_player.rs:227:11
[INFO] [stderr]     |
[INFO] [stderr] 227 |     const sample_rate: f32 = 10.0;
[INFO] [stderr]     |           ^^^^^^^^^^^ help: convert the identifier to upper case: `SAMPLE_RATE`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(non_upper_case_globals)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `metaloop` (lib test) generated 10 warnings (6 duplicates) (run `cargo fix --lib -p metaloop --tests` to apply 1 suggestion)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.19s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: anymap v1.0.0-beta.2
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/metaloop-fc717d1e555a76bb)
[INFO] [stdout] 
[INFO] [stdout] running 41 tests
[INFO] [stdout] test delay_line::tests::test_delay_line ... ok
[INFO] [stdout] test countdown_trigger::tests::test_countdown_trigger_none ... ok
[INFO] [stdout] test grain::tests::test_grain_fade ... ok
[INFO] [stdout] test countdown_trigger::tests::test_countdown_trigger ... ok
[INFO] [stdout] test delay_line::tests::test_lerp ... ok
[INFO] [stdout] test grain::tests::test_grain ... ok
[INFO] [stdout] test grain::tests::test_grain_stop ... ok
[INFO] [stdout] test grain::tests::test_grain_half_speed ... ok
[INFO] [stdout] test delay_line::tests::test_delay_line_type ... ok
[INFO] [stdout] test grain::tests::test_grain_reverse ... ok
[INFO] [stdout] test grain::tests::test_grain_wait ... ok
[INFO] [stdout] test grain_looper::tests::test_grain_looper_change_tempo ... ok
[INFO] [stdout] test grain_looper::tests::test_grain_looper_fade ... ok
[INFO] [stdout] test grain_looper::tests::test_beats_to_samples ... ok
[INFO] [stdout] test grain_looper::tests::test_grain_looper_loop ... ok
[INFO] [stdout] test grain_looper::tests::test_grain_looper_loop_offset ... ok
[INFO] [stdout] test grain_looper::tests::test_grain_looper_fade_is_flat ... ok
[INFO] [stdout] test grain_looper::tests::test_grain_looper_immediate_reverse_without_fade ... ok
[INFO] [stdout] test grain_looper::tests::test_grain_looper_nicely ... ok
[INFO] [stdout] test grain_looper::tests::test_grain_looper_tweak_loop ... ok
[INFO] [stdout] test grain_player::tests::test_grain_player_output ... ok
[INFO] [stdout] test grain_looper::tests::test_grain_looper_short_to_long ... ok
[INFO] [stdout] test grain_player::tests::test_grain_player_output_fade ... ok
[INFO] [stdout] test grain_player::tests::test_grain_player_immediate_reverse_with_fade ... ok
[INFO] [stdout] test grain_player::tests::test_grain_player_state ... ok
[INFO] [stdout] test grain_player::tests::test_grain_player_dry_grain ... ok
[INFO] [stdout] test grain_player::tests::test_grain_player_stop_all ... ok
[INFO] [stdout] test loop_scheduler::tests::test_loop_scheduler_lengthen_loop_early ... ok
[INFO] [stdout] test loop_scheduler::tests::test_loop_scheduler_lengthen_loop_late ... ok
[INFO] [stdout] test loop_scheduler::tests::test_loop_scheduler_shorten_loop ... ok
[INFO] [stdout] test loop_scheduler::tests::test_loop_scheduler_simple_loop ... ok
[INFO] [stdout] test grain::tests::test_grain_double_speed ... ok
[INFO] [stdout] test ramped_value::tests::test_ramped_value_down ... ok
[INFO] [stdout] test ramped_value::tests::test_ramped_value ... ok
[INFO] [stdout] test grain::tests::test_grain_double_speed_stops_early ... ok
[INFO] [stdout] test loop_scheduler::tests::test_next_grid_in_beats ... ok
[INFO] [stdout] test scheduler::tests::test_scheduler ... ok
[INFO] [stdout] test stereo_pair::tests::test_stereo_pair ... ok
[INFO] [stdout] test ramped_value::tests::test_ramped_value_zero_length ... ok
[INFO] [stdout] test grain_player::tests::test_grain_player_static_buffer_states ... ok
[INFO] [stdout] test grain::tests::test_grain_fade_reverse ... ok
[INFO] [stderr]    Doc-tests metaloop
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 41 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.03s
[INFO] [stdout] 
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "a0e2c2d067a30b57b075e64b5c4913817ef7f3d25ad005d76ef594e1de2c7706", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a0e2c2d067a30b57b075e64b5c4913817ef7f3d25ad005d76ef594e1de2c7706", kill_on_drop: false }`
[INFO] [stdout] a0e2c2d067a30b57b075e64b5c4913817ef7f3d25ad005d76ef594e1de2c7706
