[INFO] fetching crate rack 0.3.2...
[INFO] testing rack-0.3.2 against beta-2025-10-28 for beta-1.92-2
[INFO] extracting crate rack 0.3.2 into /workspace/builds/worker-1-tc2/source
[INFO] started tweaking crates.io crate rack 0.3.2
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate rack 0.3.2
[INFO] tweaked toml for crates.io crate rack 0.3.2 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate rack 0.3.2 on toolchain beta-2025-10-28
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-10-28" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate rack 0.3.2 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" "+beta-2025-10-28" "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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f038e9b866c597fd10821f234c16068ac01167772741069dbf6c7ae84b43b157
[INFO] running `Command { std: "docker" "start" "-a" "f038e9b866c597fd10821f234c16068ac01167772741069dbf6c7ae84b43b157", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f038e9b866c597fd10821f234c16068ac01167772741069dbf6c7ae84b43b157", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f038e9b866c597fd10821f234c16068ac01167772741069dbf6c7ae84b43b157", kill_on_drop: false }`
[INFO] [stdout] f038e9b866c597fd10821f234c16068ac01167772741069dbf6c7ae84b43b157
[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=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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d3ea7eec6254f1b4fa29fb42116d10877de9d0699306a4ad1470c724b583cb6e
[INFO] running `Command { std: "docker" "start" "-a" "d3ea7eec6254f1b4fa29fb42116d10877de9d0699306a4ad1470c724b583cb6e", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.101
[INFO] [stderr]    Compiling unicode-ident v1.0.20
[INFO] [stderr]    Compiling find-msvc-tools v0.1.4
[INFO] [stderr]    Compiling shlex v1.3.0
[INFO] [stderr]    Compiling thiserror v2.0.17
[INFO] [stderr]    Compiling smallvec v1.15.1
[INFO] [stderr]    Compiling cc v1.2.41
[INFO] [stderr]    Compiling quote v1.0.41
[INFO] [stderr]    Compiling cmake v0.1.54
[INFO] [stderr]    Compiling syn v2.0.107
[INFO] [stderr]    Compiling rack v0.3.2 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling thiserror-impl v2.0.17
[INFO] [stderr]     Finished `dev` profile [optimized + debuginfo] target(s) in 5.90s
[INFO] running `Command { std: "docker" "inspect" "d3ea7eec6254f1b4fa29fb42116d10877de9d0699306a4ad1470c724b583cb6e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d3ea7eec6254f1b4fa29fb42116d10877de9d0699306a4ad1470c724b583cb6e", kill_on_drop: false }`
[INFO] [stdout] d3ea7eec6254f1b4fa29fb42116d10877de9d0699306a4ad1470c724b583cb6e
[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=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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] adda653c926bf34d72ceb0adb379374217c4983b37fbc7f8e7f1323188db1a8e
[INFO] running `Command { std: "docker" "start" "-a" "adda653c926bf34d72ceb0adb379374217c4983b37fbc7f8e7f1323188db1a8e", kill_on_drop: false }`
[INFO] [stderr]    Compiling rack v0.3.2 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Scanner`
[INFO] [stdout]   --> examples/preset_browser.rs:17:19
[INFO] [stdout]    |
[INFO] [stdout] 17 |     let scanner = Scanner::new()?;
[INFO] [stdout]    |                   ^^^^^^^ use of undeclared type `Scanner`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `AudioUnitGui` in this scope
[INFO] [stdout]    --> examples/plugin_gui.rs:133:38
[INFO] [stdout]     |
[INFO] [stdout] 133 |     let gui_handle: Arc<Mutex<Option<AudioUnitGui>>> = Arc::new(Mutex::new(None));
[INFO] [stdout]     |                                      ^^^^^^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Scanner`
[INFO] [stdout]   --> examples/process_audio.rs:17:19
[INFO] [stdout]    |
[INFO] [stdout] 17 |     let scanner = Scanner::new()?;
[INFO] [stdout]    |                   ^^^^^^^ use of undeclared type `Scanner`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]   --> examples/preset_browser.rs:37:16
[INFO] [stdout]    |
[INFO] [stdout] 37 |             if plugin.initialize(48000.0, 512).is_ok() {
[INFO] [stdout]    |                ^^^^^^ cannot infer type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0455]: link kind `framework` is only supported on Apple targets
[INFO] [stdout]   --> examples/plugin_gui.rs:27:40
[INFO] [stdout]    |
[INFO] [stdout] 27 | #[link(name = "CoreFoundation", kind = "framework")]
[INFO] [stdout]    |                                        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Scanner`
[INFO] [stdout]  --> examples/list_plugins.rs:8:19
[INFO] [stdout]   |
[INFO] [stdout] 8 |     let scanner = Scanner::new()?;
[INFO] [stdout]   |                   ^^^^^^^ use of undeclared type `Scanner`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Scanner`
[INFO] [stdout]   --> examples/plugin_gui.rs:80:19
[INFO] [stdout]    |
[INFO] [stdout] 80 |     let scanner = Scanner::new()?;
[INFO] [stdout]    |                   ^^^^^^^ use of undeclared type `Scanner`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0433`.
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0282, E0433.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0282`.
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Scanner`
[INFO] [stdout]   --> examples/simple_synth.rs:18:19
[INFO] [stdout]    |
[INFO] [stdout] 18 |     let scanner = Scanner::new()?;
[INFO] [stdout]    |                   ^^^^^^^ use of undeclared type `Scanner`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed for `std::result::Result<_, _>`
[INFO] [stdout]    --> examples/plugin_gui.rs:138:29
[INFO] [stdout]     |
[INFO] [stdout] 138 |     plugin.create_gui(move |result| {
[INFO] [stdout]     |                             ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 144 |                 if let Ok((width, height)) = gui.get_size() {
[INFO] [stdout]     |                                              --- type must be known at this point
[INFO] [stdout]     |
[INFO] [stdout] help: consider giving this closure parameter an explicit type, where the placeholders `_` are specified
[INFO] [stdout]     |
[INFO] [stdout] 138 |     plugin.create_gui(move |result: std::result::Result<_, E>| {
[INFO] [stdout]     |                                   +++++++++++++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rack` (example "list_plugins") due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `rack` (example "preset_browser") due to 2 previous errors
[INFO] [stdout] For more information about this error, try `rustc --explain E0433`.
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Scanner`
[INFO] [stdout]   --> examples/load_plugin.rs:16:19
[INFO] [stdout]    |
[INFO] [stdout] 16 |     let scanner = Scanner::new()?;
[INFO] [stdout]    |                   ^^^^^^^ use of undeclared type `Scanner`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0282, E0412, E0433, E0455.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0282`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rack` (example "plugin_gui") due to 4 previous errors
[INFO] [stderr] error: could not compile `rack` (example "process_audio") due to 1 previous error
[INFO] [stdout] For more information about this error, try `rustc --explain E0433`.
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Scanner`
[INFO] [stdout]   --> examples/control_parameters.rs:18:19
[INFO] [stdout]    |
[INFO] [stdout] 18 |     let scanner = Scanner::new()?;
[INFO] [stdout]    |                   ^^^^^^^ use of undeclared type `Scanner`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0433`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rack` (example "simple_synth") due to 1 previous error
[INFO] [stderr] error: could not compile `rack` (example "load_plugin") due to 1 previous error
[INFO] [stdout] For more information about this error, try `rustc --explain E0433`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rack` (example "control_parameters") due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "adda653c926bf34d72ceb0adb379374217c4983b37fbc7f8e7f1323188db1a8e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "adda653c926bf34d72ceb0adb379374217c4983b37fbc7f8e7f1323188db1a8e", kill_on_drop: false }`
[INFO] [stdout] adda653c926bf34d72ceb0adb379374217c4983b37fbc7f8e7f1323188db1a8e
