[INFO] cloning repository https://github.com/if-loop69420/metrognome
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/if-loop69420/metrognome" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fif-loop69420%2Fmetrognome", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fif-loop69420%2Fmetrognome'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e768399a126e6ad42708120224eb5c9ce9329527
[INFO] testing if-loop69420/metrognome against 1.97.0-beta.6 for beta-1.98-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fif-loop69420%2Fmetrognome" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/if-loop69420/metrognome
[INFO] finished tweaking git repo https://github.com/if-loop69420/metrognome
[INFO] tweaked toml for git repo https://github.com/if-loop69420/metrognome written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/if-loop69420/metrognome on toolchain 1.97.0-beta.6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.97.0-beta.6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/if-loop69420/metrognome 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" "+1.97.0-beta.6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded symphonia v0.5.4
[INFO] [stderr]   Downloaded rodio v0.18.1
[INFO] [stderr]   Downloaded symphonia-metadata v0.5.4
[INFO] [stderr]   Downloaded proc-macro-crate v3.1.0
[INFO] [stderr]   Downloaded bytemuck v1.16.0
[INFO] [stderr]   Downloaded wasm-bindgen-futures v0.4.42
[INFO] [stderr]   Downloaded num_enum_derive v0.7.2
[INFO] [stderr]   Downloaded coreaudio-sys v0.2.15
[INFO] [stderr]   Downloaded windows-result v0.1.1
[INFO] [stderr]   Downloaded num_enum v0.7.2
[INFO] [stderr]   Downloaded libloading v0.8.3
[INFO] [stderr]   Downloaded alsa v0.9.0
[INFO] [stderr]   Downloaded symphonia-core v0.5.4
[INFO] [stderr]   Downloaded symphonia-bundle-mp3 v0.5.4
[INFO] [stderr]   Downloaded toml_edit v0.21.1
[INFO] [stderr]   Downloaded web-sys v0.3.69
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:3d5ced03c013a94a2f102a4510f48a6e9184255caf5fd8244f58017bde7f5210" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 7f4aad05f5aee14e5560ddd07ea30b4bee03c578c184d403f1f0da92671b8ac9
[INFO] running `Command { std: "docker" "start" "7f4aad05f5aee14e5560ddd07ea30b4bee03c578c184d403f1f0da92671b8ac9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7f4aad05f5aee14e5560ddd07ea30b4bee03c578c184d403f1f0da92671b8ac9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "7f4aad05f5aee14e5560ddd07ea30b4bee03c578c184d403f1f0da92671b8ac9" "/opt/rustwide/cargo-home/bin/cargo" "+1.97.0-beta.6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7f4aad05f5aee14e5560ddd07ea30b4bee03c578c184d403f1f0da92671b8ac9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "7f4aad05f5aee14e5560ddd07ea30b4bee03c578c184d403f1f0da92671b8ac9" "/opt/rustwide/cargo-home/bin/cargo" "+1.97.0-beta.6" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling pkg-config v0.3.30
[INFO] [stderr]    Compiling bytemuck v1.16.0
[INFO] [stderr]    Compiling log v0.4.21
[INFO] [stderr]    Compiling bitflags v1.3.2
[INFO] [stderr]    Compiling arrayvec v0.7.4
[INFO] [stderr]    Compiling bitflags v2.5.0
[INFO] [stderr]    Compiling cpal v0.15.3
[INFO] [stderr]    Compiling dasp_sample v0.11.0
[INFO] [stderr]    Compiling encoding_rs v0.8.34
[INFO] [stderr]    Compiling ogg v0.8.0
[INFO] [stderr]    Compiling tinyvec v1.6.0
[INFO] [stderr]    Compiling claxon v0.4.3
[INFO] [stderr]    Compiling hound v3.5.1
[INFO] [stderr]    Compiling syn v2.0.66
[INFO] [stderr]    Compiling symphonia-core v0.5.4
[INFO] [stderr]    Compiling alsa-sys v0.3.1
[INFO] [stderr]    Compiling lewton v0.10.2
[INFO] [stderr]    Compiling alsa v0.9.0
[INFO] [stderr]    Compiling symphonia-metadata v0.5.4
[INFO] [stderr]    Compiling symphonia-bundle-mp3 v0.5.4
[INFO] [stderr]    Compiling thiserror-impl v1.0.61
[INFO] [stderr]    Compiling symphonia v0.5.4
[INFO] [stderr]    Compiling thiserror v1.0.61
[INFO] [stderr]    Compiling rodio v0.18.1
[INFO] [stderr]    Compiling metronome v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `Decoder`
[INFO] [stdout]  --> src/main.rs:2:13
[INFO] [stdout]   |
[INFO] [stdout] 2 | use rodio::{Decoder, OutputStream, Sink};
[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 import: `std::process::exit`
[INFO] [stdout]  --> src/main.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::process::exit;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::sync::Arc`
[INFO] [stdout]  --> src/main.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::sync::Arc;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::thread`
[INFO] [stdout]  --> src/main.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::thread;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `HashSet` and `ops::Range`
[INFO] [stdout]   --> src/main.rs:10:33
[INFO] [stdout]    |
[INFO] [stdout] 10 |         collections::{BTreeSet, HashSet, VecDeque},
[INFO] [stdout]    |                                 ^^^^^^^
[INFO] [stdout] 11 |         ops::Range,
[INFO] [stdout]    |         ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: `()` is not an iterator
[INFO] [stdout]    --> src/main.rs:169:13
[INFO] [stdout]     |
[INFO] [stdout] 169 | /             signatures
[INFO] [stdout] 170 | |                 .iter()
[INFO] [stdout] 171 | |                 .map(|x| {
[INFO] [stdout] 172 | |                     let note_length = (x.bottom / x.top) as f64 * single_note_length;
[INFO] [stdout] ...   |
[INFO] [stdout] 177 | |                 .flatten()
[INFO] [stdout] 178 | |                 .collect()
[INFO] [stdout]     | |__________________________^ `()` is not an iterator
[INFO] [stdout]     |
[INFO] [stdout]     = help: the trait `Iterator` is not implemented for `()`
[INFO] [stdout]     = note: required for `Flatten<Map<Iter<'_, TimeSignature>, {closure@main.rs:171:22}>>` to implement `Iterator`
[INFO] [stdout]     = note: the full name for the type has been written to '/opt/rustwide/target/debug/deps/metronome-c59096be3d9ffd1a.long-type-6762034013264803510.txt'
[INFO] [stdout]     = note: consider using `--verbose` to print the full type name to the console
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: `()` is not an iterator
[INFO] [stdout]    --> src/main.rs:178:18
[INFO] [stdout]     |
[INFO] [stdout] 178 |                 .collect()
[INFO] [stdout]     |                  ^^^^^^^ `()` is not an iterator
[INFO] [stdout]     |
[INFO] [stdout]     = help: the trait `Iterator` is not implemented for `()`
[INFO] [stdout]     = note: required for `Flatten<Map<Iter<'_, TimeSignature>, {closure@main.rs:171:22}>>` to implement `Iterator`
[INFO] [stdout]     = note: the full name for the type has been written to '/opt/rustwide/target/debug/deps/metronome-c59096be3d9ffd1a.long-type-6762034013264803510.txt'
[INFO] [stdout]     = note: consider using `--verbose` to print the full type name to the console
[INFO] [stdout] help: consider removing this method call, as the receiver has type `Map<std::slice::Iter<'_, metronome::TimeSignature>, {closure@src/main.rs:171:22: 171:25}>` and `Map<std::slice::Iter<'_, metronome::TimeSignature>, {closure@src/main.rs:171:22: 171:25}>: Iterator` trivially holds
[INFO] [stdout]     |
[INFO] [stdout] 176 -                 })
[INFO] [stdout] 177 -                 .flatten()
[INFO] [stdout] 176 +                 })
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: `()` is not an iterator
[INFO] [stdout]    --> src/main.rs:177:18
[INFO] [stdout]     |
[INFO] [stdout] 177 |                 .flatten()
[INFO] [stdout]     |                  ^^^^^^^ `()` is not an iterator
[INFO] [stdout]     |
[INFO] [stdout]     = help: the trait `Iterator` is not implemented for `()`
[INFO] [stdout]     = note: required for `()` to implement `IntoIterator`
[INFO] [stdout] note: required by a bound in `flatten`
[INFO] [stdout]    --> /rustc/b2282dd5646a57d570fc86fbe8df0e8826665ef6/library/core/src/iter/traits/iterator.rs:1617:4
[INFO] [stdout] help: consider removing this method call, as the receiver has type `std::slice::Iter<'_, metronome::TimeSignature>` and `std::slice::Iter<'_, metronome::TimeSignature>: Iterator` trivially holds
[INFO] [stdout]     |
[INFO] [stdout] 170 -                 .iter()
[INFO] [stdout] 171 -                 .map(|x| {
[INFO] [stdout] 172 -                     let note_length = (x.bottom / x.top) as f64 * single_note_length;
[INFO] [stdout] 173 -                     let mut time_points: Vec<f64> = Vec::new();
[INFO] [stdout] 174 -                     let mut current_time = 0;
[INFO] [stdout] 175 -                     loop {}
[INFO] [stdout] 176 -                 })
[INFO] [stdout] 170 +                 .iter()
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `metronome` (bin "metronome") due to 3 previous errors; 5 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "7f4aad05f5aee14e5560ddd07ea30b4bee03c578c184d403f1f0da92671b8ac9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7f4aad05f5aee14e5560ddd07ea30b4bee03c578c184d403f1f0da92671b8ac9", kill_on_drop: false }`
[INFO] [stdout] 7f4aad05f5aee14e5560ddd07ea30b4bee03c578c184d403f1f0da92671b8ac9
