[INFO] cloning repository https://github.com/gsspdev/rust_synth_two
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/gsspdev/rust_synth_two" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgsspdev%2Frust_synth_two", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgsspdev%2Frust_synth_two'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8daaa59ef89987bdbcec0d5d2546db9f54b3b077
[INFO] checking gsspdev/rust_synth_two against try#c659ee110de67e82444e4b6c8407c1a9af9c2cf6 for pr-145608-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgsspdev%2Frust_synth_two" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/gsspdev/rust_synth_two
[INFO] finished tweaking git repo https://github.com/gsspdev/rust_synth_two
[INFO] tweaked toml for git repo https://github.com/gsspdev/rust_synth_two written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/gsspdev/rust_synth_two on toolchain c659ee110de67e82444e4b6c8407c1a9af9c2cf6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/gsspdev/rust_synth_two 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" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1e148c9c30be4344eb419f23d1189b6eae461bf32db95a32715d9e8c9a859014
[INFO] running `Command { std: "docker" "start" "-a" "1e148c9c30be4344eb419f23d1189b6eae461bf32db95a32715d9e8c9a859014", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1e148c9c30be4344eb419f23d1189b6eae461bf32db95a32715d9e8c9a859014", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1e148c9c30be4344eb419f23d1189b6eae461bf32db95a32715d9e8c9a859014", kill_on_drop: false }`
[INFO] [stdout] 1e148c9c30be4344eb419f23d1189b6eae461bf32db95a32715d9e8c9a859014
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 04580dcbd55c0cd8d516d856f14dc4d0bd90f55c8d3e7770539853ce21a4d332
[INFO] running `Command { std: "docker" "start" "-a" "04580dcbd55c0cd8d516d856f14dc4d0bd90f55c8d3e7770539853ce21a4d332", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.150
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling pkg-config v0.3.27
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling parking_lot_core v0.9.9
[INFO] [stderr]     Checking smallvec v1.11.2
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]     Checking scopeguard v1.2.0
[INFO] [stderr]    Compiling cpal v0.15.2
[INFO] [stderr]     Checking dasp_sample v0.11.0
[INFO] [stderr]    Compiling lock_api v0.4.11
[INFO] [stderr]    Compiling alsa-sys v0.3.1
[INFO] [stderr]     Checking nix v0.24.3
[INFO] [stderr]     Checking parking_lot v0.12.1
[INFO] [stderr]     Checking alsa v0.7.1
[INFO] [stderr]     Checking chatgpt_synth v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `engine`
[INFO] [stdout]   --> src/main.rs:71:9
[INFO] [stdout]    |
[INFO] [stdout] 71 |     let engine = AudioEngine::new(440.0, 44100.0);
[INFO] [stdout]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_engine`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `engine`
[INFO] [stdout]   --> src/main.rs:71:9
[INFO] [stdout]    |
[INFO] [stdout] 71 |     let engine = AudioEngine::new(440.0, 44100.0);
[INFO] [stdout]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_engine`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `frequency` and `sample_rate` are never read
[INFO] [stdout]  --> src/main.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | struct Oscillator {
[INFO] [stdout]   |        ---------- fields in this struct
[INFO] [stdout] 5 |     frequency: f64,
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout] 6 |     sample_rate: f64,
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `frequency` and `sample_rate` are never read
[INFO] [stdout]  --> src/main.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | struct Oscillator {
[INFO] [stdout]   |        ---------- fields in this struct
[INFO] [stdout] 5 |     frequency: f64,
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout] 6 |     sample_rate: f64,
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `oscillator` and `stream` are never read
[INFO] [stdout]   --> src/main.rs:33:5
[INFO] [stdout]    |
[INFO] [stdout] 32 | struct AudioEngine {
[INFO] [stdout]    |        ----------- fields in this struct
[INFO] [stdout] 33 |     oscillator: Arc<Mutex<Oscillator>>,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 34 |     stream: cpal::Stream,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `oscillator` and `stream` are never read
[INFO] [stdout]   --> src/main.rs:33:5
[INFO] [stdout]    |
[INFO] [stdout] 32 | struct AudioEngine {
[INFO] [stdout]    |        ----------- fields in this struct
[INFO] [stdout] 33 |     oscillator: Arc<Mutex<Oscillator>>,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 34 |     stream: cpal::Stream,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.07s
[INFO] running `Command { std: "docker" "inspect" "04580dcbd55c0cd8d516d856f14dc4d0bd90f55c8d3e7770539853ce21a4d332", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "04580dcbd55c0cd8d516d856f14dc4d0bd90f55c8d3e7770539853ce21a4d332", kill_on_drop: false }`
[INFO] [stdout] 04580dcbd55c0cd8d516d856f14dc4d0bd90f55c8d3e7770539853ce21a4d332