[INFO] fetching crate buzzer-ui 0.1.0...
[INFO] testing buzzer-ui-0.1.0 against beta-2026-04-21 for beta-1.96-1
[INFO] extracting crate buzzer-ui 0.1.0 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate buzzer-ui 0.1.0
[INFO] finished tweaking crates.io crate buzzer-ui 0.1.0
[INFO] tweaked toml for crates.io crate buzzer-ui 0.1.0 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate buzzer-ui 0.1.0 on toolchain beta-2026-04-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate buzzer-ui 0.1.0 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-2026-04-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 61e27e9adab4bbfa9be5c133901294fcbab3eb9f8b4bb34d1abc2ee559e283fe
[INFO] running `Command { std: "docker" "start" "-a" "61e27e9adab4bbfa9be5c133901294fcbab3eb9f8b4bb34d1abc2ee559e283fe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "61e27e9adab4bbfa9be5c133901294fcbab3eb9f8b4bb34d1abc2ee559e283fe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "61e27e9adab4bbfa9be5c133901294fcbab3eb9f8b4bb34d1abc2ee559e283fe", kill_on_drop: false }`
[INFO] [stdout] 61e27e9adab4bbfa9be5c133901294fcbab3eb9f8b4bb34d1abc2ee559e283fe
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5043361597f55ec59b8a522cfc98106725ed019d2f6d9b7c943375e5ecbfbfd8
[INFO] running `Command { std: "docker" "start" "-a" "5043361597f55ec59b8a522cfc98106725ed019d2f6d9b7c943375e5ecbfbfd8", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.103
[INFO] [stderr]    Compiling rustix v1.1.3
[INFO] [stderr]    Compiling winnow v0.7.14
[INFO] [stderr]    Compiling wayland-sys v0.31.7
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[INFO] [stderr]    Compiling owned_ttf_parser v0.25.1
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[INFO] [stderr]    Compiling gl_generator v0.14.0
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[INFO] [stderr]    Compiling rustix v0.38.44
[INFO] [stderr]    Compiling event-listener-strategy v0.5.4
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[INFO] [stderr]    Compiling async-lock v3.4.2
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]    Compiling syn v2.0.111
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[INFO] [stderr]    Compiling proc-macro-crate v3.4.0
[INFO] [stderr]    Compiling polling v3.11.0
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[INFO] [stderr]    Compiling x11rb v0.13.2
[INFO] [stderr]    Compiling moxcms v0.7.11
[INFO] [stderr]    Compiling async-io v2.6.0
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[INFO] [stderr]    Compiling async-signal v0.2.13
[INFO] [stderr]    Compiling async-process v2.5.0
[INFO] [stderr]    Compiling wayland-client v0.31.11
[INFO] [stderr]    Compiling wayland-csd-frame v0.3.0
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]    Compiling enumflags2_derive v0.7.12
[INFO] [stderr]    Compiling tracing-attributes v0.1.31
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[INFO] [stderr]    Compiling zerovec-derive v0.11.2
[INFO] [stderr]    Compiling displaydoc v0.2.5
[INFO] [stderr]    Compiling thiserror-impl v1.0.69
[INFO] [stderr]    Compiling serde_repr v0.1.20
[INFO] [stderr]    Compiling async-trait v0.1.89
[INFO] [stderr]    Compiling thiserror-impl v2.0.17
[INFO] [stderr]    Compiling futures-macro v0.3.31
[INFO] [stderr]    Compiling wayland-protocols v0.32.9
[INFO] [stderr]    Compiling thiserror v1.0.69
[INFO] [stderr]    Compiling wayland-cursor v0.31.11
[INFO] [stderr]    Compiling futures-util v0.3.31
[INFO] [stderr]    Compiling calloop v0.13.0
[INFO] [stderr]    Compiling tracing v0.1.44
[INFO] [stderr]    Compiling bytemuck v1.24.0
[INFO] [stderr]    Compiling zerofrom v0.1.6
[INFO] [stderr]    Compiling thiserror v2.0.17
[INFO] [stderr]    Compiling calloop v0.14.3
[INFO] [stderr]    Compiling yoke v0.8.1
[INFO] [stderr]    Compiling unescaper v0.1.8
[INFO] [stderr]    Compiling calloop-wayland-source v0.3.0
[INFO] [stderr]    Compiling zerovec v0.11.5
[INFO] [stderr]    Compiling zerotrie v0.2.3
[INFO] [stderr]    Compiling serialport v4.8.1
[INFO] [stderr]    Compiling tiny-skia-path v0.11.4
[INFO] [stderr]    Compiling emath v0.33.3
[INFO] [stderr]    Compiling ecolor v0.33.3
[INFO] [stderr]    Compiling calloop-wayland-source v0.4.1
[INFO] [stderr]    Compiling epaint v0.33.3
[INFO] [stderr]    Compiling tinystr v0.8.2
[INFO] [stderr]    Compiling potential_utf v0.1.4
[INFO] [stderr]    Compiling tiny-skia v0.11.4
[INFO] [stderr]    Compiling icu_locale_core v2.1.1
[INFO] [stderr]    Compiling icu_collections v2.1.1
[INFO] [stderr]    Compiling image v0.25.9
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling icu_provider v2.1.1
[INFO] [stderr]    Compiling zvariant_utils v3.2.1
[INFO] [stderr]    Compiling enumflags2 v0.7.12
[INFO] [stderr]    Compiling quick-xml v0.36.2
[INFO] [stderr]    Compiling icu_normalizer v2.1.1
[INFO] [stderr]    Compiling icu_properties v2.1.2
[INFO] [stderr]    Compiling egui v0.33.3
[INFO] [stderr]    Compiling zvariant_derive v5.8.0
[INFO] [stderr]    Compiling idna_adapter v1.2.1
[INFO] [stderr]    Compiling zvariant v5.8.0
[INFO] [stderr]    Compiling idna v1.1.0
[INFO] [stderr]    Compiling url v2.5.7
[INFO] [stderr]    Compiling arboard v3.6.1
[INFO] [stderr]    Compiling webbrowser v1.0.6
[INFO] [stderr]    Compiling wayland-protocols-wlr v0.3.9
[INFO] [stderr]    Compiling wayland-protocols-plasma v0.3.9
[INFO] [stderr]    Compiling wayland-protocols-misc v0.3.9
[INFO] [stderr]    Compiling wayland-protocols-experimental v20250721.0.1
[INFO] [stderr]    Compiling zbus_names v4.2.0
[INFO] [stderr]    Compiling smithay-client-toolkit v0.19.2
[INFO] [stderr]    Compiling zbus_xml v5.0.2
[INFO] [stderr]    Compiling egui_glow v0.33.3
[INFO] [stderr]    Compiling zbus_macros v5.12.0
[INFO] [stderr]    Compiling zbus-lockstep v0.5.2
[INFO] [stderr]    Compiling sctk-adwaita v0.10.1
[INFO] [stderr]    Compiling zbus-lockstep-macros v0.5.2
[INFO] [stderr]    Compiling smithay-clipboard v0.7.3
[INFO] [stderr]    Compiling zbus v5.12.0
[INFO] [stderr]    Compiling atspi-common v0.9.0
[INFO] [stderr]    Compiling atspi-proxies v0.9.0
[INFO] [stderr]    Compiling accesskit_atspi_common v0.14.2
[INFO] [stderr]    Compiling atspi-connection v0.9.0
[INFO] [stderr]    Compiling atspi v0.25.0
[INFO] [stderr]    Compiling accesskit_unix v0.17.2
[INFO] [stderr]    Compiling accesskit_winit v0.29.2
[INFO] [stderr]    Compiling egui-winit v0.33.3
[INFO] [stderr]    Compiling eframe v0.33.3
[INFO] [stderr]    Compiling buzzer-ui v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `cc`
[INFO] [stdout]   --> src/app.rs:13:16
[INFO] [stdout]    |
[INFO] [stdout] 13 |     pub fn new(cc: &eframe::CreationContext<'_>) -> Self {
[INFO] [stdout]    |                ^^ help: if this is intentional, prefix it with an underscore: `_cc`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `frame`
[INFO] [stdout]   --> src/app.rs:34:47
[INFO] [stdout]    |
[INFO] [stdout] 34 |     fn update(&mut self, ctx: &egui::Context, frame: &mut eframe::Frame) {
[INFO] [stdout]    |                                               ^^^^^ help: if this is intentional, prefix it with an underscore: `_frame`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1m 19s
[INFO] running `Command { std: "docker" "inspect" "5043361597f55ec59b8a522cfc98106725ed019d2f6d9b7c943375e5ecbfbfd8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5043361597f55ec59b8a522cfc98106725ed019d2f6d9b7c943375e5ecbfbfd8", kill_on_drop: false }`
[INFO] [stdout] 5043361597f55ec59b8a522cfc98106725ed019d2f6d9b7c943375e5ecbfbfd8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d956cfb23a8e6b0af6ef2d86c5744310f859187ced37645e3654da615f3b5874
[INFO] running `Command { std: "docker" "start" "-a" "d956cfb23a8e6b0af6ef2d86c5744310f859187ced37645e3654da615f3b5874", kill_on_drop: false }`
[INFO] [stderr]    Compiling buzzer-ui v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `cc`
[INFO] [stdout]   --> src/app.rs:13:16
[INFO] [stdout]    |
[INFO] [stdout] 13 |     pub fn new(cc: &eframe::CreationContext<'_>) -> Self {
[INFO] [stdout]    |                ^^ help: if this is intentional, prefix it with an underscore: `_cc`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `frame`
[INFO] [stdout]   --> src/app.rs:34:47
[INFO] [stdout]    |
[INFO] [stdout] 34 |     fn update(&mut self, ctx: &egui::Context, frame: &mut eframe::Frame) {
[INFO] [stdout]    |                                               ^^^^^ help: if this is intentional, prefix it with an underscore: `_frame`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.26s
[INFO] running `Command { std: "docker" "inspect" "d956cfb23a8e6b0af6ef2d86c5744310f859187ced37645e3654da615f3b5874", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d956cfb23a8e6b0af6ef2d86c5744310f859187ced37645e3654da615f3b5874", kill_on_drop: false }`
[INFO] [stdout] d956cfb23a8e6b0af6ef2d86c5744310f859187ced37645e3654da615f3b5874
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] bb0586568797e37a4124f7287376ecc3e8ad5e60b046d0e84403bd09b8905b6e
[INFO] running `Command { std: "docker" "start" "-a" "bb0586568797e37a4124f7287376ecc3e8ad5e60b046d0e84403bd09b8905b6e", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `cc`
[INFO] [stderr]   --> src/app.rs:13:16
[INFO] [stderr]    |
[INFO] [stderr] 13 |     pub fn new(cc: &eframe::CreationContext<'_>) -> Self {
[INFO] [stderr]    |                ^^ help: if this is intentional, prefix it with an underscore: `_cc`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `frame`
[INFO] [stderr]   --> src/app.rs:34:47
[INFO] [stderr]    |
[INFO] [stderr] 34 |     fn update(&mut self, ctx: &egui::Context, frame: &mut eframe::Frame) {
[INFO] [stderr]    |                                               ^^^^^ help: if this is intentional, prefix it with an underscore: `_frame`
[INFO] [stderr] 
[INFO] [stderr] warning: `buzzer-ui` (bin "buzzer-ui" test) generated 2 warnings (run `cargo fix --bin "buzzer-ui" -p buzzer-ui --tests` to apply 2 suggestions)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.30s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/buzzer_ui-237d3476f03593dd)
[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" "bb0586568797e37a4124f7287376ecc3e8ad5e60b046d0e84403bd09b8905b6e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bb0586568797e37a4124f7287376ecc3e8ad5e60b046d0e84403bd09b8905b6e", kill_on_drop: false }`
[INFO] [stdout] bb0586568797e37a4124f7287376ecc3e8ad5e60b046d0e84403bd09b8905b6e