[INFO] fetching crate tf_playlist 0.1.4...
[INFO] testing tf_playlist-0.1.4 against beta-2025-10-28 for beta-1.92-2
[INFO] extracting crate tf_playlist 0.1.4 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate tf_playlist 0.1.4
[INFO] finished tweaking crates.io crate tf_playlist 0.1.4
[INFO] tweaked toml for crates.io crate tf_playlist 0.1.4 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate tf_playlist 0.1.4 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] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-10-28" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 2 packages to latest compatible versions
[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-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ef650ab00deac68701db4d460dbd2e0a2e4d9e0815a426f8c7f7eab77ddf90c9
[INFO] running `Command { std: "docker" "start" "-a" "ef650ab00deac68701db4d460dbd2e0a2e4d9e0815a426f8c7f7eab77ddf90c9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ef650ab00deac68701db4d460dbd2e0a2e4d9e0815a426f8c7f7eab77ddf90c9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ef650ab00deac68701db4d460dbd2e0a2e4d9e0815a426f8c7f7eab77ddf90c9", kill_on_drop: false }`
[INFO] [stdout] ef650ab00deac68701db4d460dbd2e0a2e4d9e0815a426f8c7f7eab77ddf90c9
[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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 81c663c648f9c2cd1e7443406b5a7eb9d847416f86998f509660b8e6dbf27c64
[INFO] running `Command { std: "docker" "start" "-a" "81c663c648f9c2cd1e7443406b5a7eb9d847416f86998f509660b8e6dbf27c64", kill_on_drop: false }`
[INFO] [stderr]    Compiling tf_observer v0.1.3
[INFO] [stderr]    Compiling tf_playlist v0.1.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/playlist.rs:90:45
[INFO] [stdout]    |
[INFO] [stdout] 90 |         observer: std::sync::Weak<Mutex<Box<(dyn Observer<PlaylistEvent<T>> + Send + 'static)>>>,
[INFO] [stdout]    |                                             ^                                               ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 90 -         observer: std::sync::Weak<Mutex<Box<(dyn Observer<PlaylistEvent<T>> + Send + 'static)>>>,
[INFO] [stdout] 90 +         observer: std::sync::Weak<Mutex<Box<dyn Observer<PlaylistEvent<T>> + Send + 'static>>>,
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/playlist.rs:97:45
[INFO] [stdout]    |
[INFO] [stdout] 97 |         observer: std::sync::Weak<Mutex<Box<(dyn Observer<PlaylistEvent<T>> + Send + 'static)>>>,
[INFO] [stdout]    |                                             ^                                               ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 97 -         observer: std::sync::Weak<Mutex<Box<(dyn Observer<PlaylistEvent<T>> + Send + 'static)>>>,
[INFO] [stdout] 97 +         observer: std::sync::Weak<Mutex<Box<dyn Observer<PlaylistEvent<T>> + Send + 'static>>>,
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/playlist_manager.rs:54:45
[INFO] [stdout]    |
[INFO] [stdout] 54 |         observer: std::sync::Weak<Mutex<Box<(dyn Observer<PlaylistEvent<T>> + Send + 'static)>>>,
[INFO] [stdout]    |                                             ^                                               ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 54 -         observer: std::sync::Weak<Mutex<Box<(dyn Observer<PlaylistEvent<T>> + Send + 'static)>>>,
[INFO] [stdout] 54 +         observer: std::sync::Weak<Mutex<Box<dyn Observer<PlaylistEvent<T>> + Send + 'static >>>,
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/playlist_manager.rs:70:45
[INFO] [stdout]    |
[INFO] [stdout] 70 |         observer: std::sync::Weak<Mutex<Box<(dyn Observer<PlaylistEvent<T>> + Send + 'static)>>>,
[INFO] [stdout]    |                                             ^                                               ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 70 -         observer: std::sync::Weak<Mutex<Box<(dyn Observer<PlaylistEvent<T>> + Send + 'static)>>>,
[INFO] [stdout] 70 +         observer: std::sync::Weak<Mutex<Box<dyn Observer<PlaylistEvent<T>> + Send + 'static >>>,
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/playlist_manager.rs:106:45
[INFO] [stdout]     |
[INFO] [stdout] 106 |         observer: std::sync::Weak<Mutex<Box<(dyn Observer<PlaylistEvent<T>> + Send + 'static)>>>,
[INFO] [stdout]     |                                             ^                                               ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 106 -         observer: std::sync::Weak<Mutex<Box<(dyn Observer<PlaylistEvent<T>> + Send + 'static)>>>,
[INFO] [stdout] 106 +         observer: std::sync::Weak<Mutex<Box<dyn Observer<PlaylistEvent<T>> + Send + 'static >>>,
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/playlist_manager.rs:114:45
[INFO] [stdout]     |
[INFO] [stdout] 114 |         observer: std::sync::Weak<Mutex<Box<(dyn Observer<PlaylistEvent<T>> + Send + 'static)>>>,
[INFO] [stdout]     |                                             ^                                               ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 114 -         observer: std::sync::Weak<Mutex<Box<(dyn Observer<PlaylistEvent<T>> + Send + 'static)>>>,
[INFO] [stdout] 114 +         observer: std::sync::Weak<Mutex<Box<dyn Observer<PlaylistEvent<T>> + Send + 'static >>>,
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.47s
[INFO] running `Command { std: "docker" "inspect" "81c663c648f9c2cd1e7443406b5a7eb9d847416f86998f509660b8e6dbf27c64", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "81c663c648f9c2cd1e7443406b5a7eb9d847416f86998f509660b8e6dbf27c64", kill_on_drop: false }`
[INFO] [stdout] 81c663c648f9c2cd1e7443406b5a7eb9d847416f86998f509660b8e6dbf27c64
[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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d959af27794240c1be12e24f64c1e583f4ddc77979c52e8a778eb023a0224b2c
[INFO] running `Command { std: "docker" "start" "-a" "d959af27794240c1be12e24f64c1e583f4ddc77979c52e8a778eb023a0224b2c", kill_on_drop: false }`
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/playlist.rs:90:45
[INFO] [stdout]    |
[INFO] [stdout] 90 |         observer: std::sync::Weak<Mutex<Box<(dyn Observer<PlaylistEvent<T>> + Send + 'static)>>>,
[INFO] [stdout]    |                                             ^                                               ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 90 -         observer: std::sync::Weak<Mutex<Box<(dyn Observer<PlaylistEvent<T>> + Send + 'static)>>>,
[INFO] [stdout] 90 +         observer: std::sync::Weak<Mutex<Box<dyn Observer<PlaylistEvent<T>> + Send + 'static>>>,
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/playlist.rs:97:45
[INFO] [stdout]    |
[INFO] [stdout] 97 |         observer: std::sync::Weak<Mutex<Box<(dyn Observer<PlaylistEvent<T>> + Send + 'static)>>>,
[INFO] [stdout]    |                                             ^                                               ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 97 -         observer: std::sync::Weak<Mutex<Box<(dyn Observer<PlaylistEvent<T>> + Send + 'static)>>>,
[INFO] [stdout] 97 +         observer: std::sync::Weak<Mutex<Box<dyn Observer<PlaylistEvent<T>> + Send + 'static>>>,
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling tf_playlist v0.1.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/playlist_manager.rs:54:45
[INFO] [stdout]    |
[INFO] [stdout] 54 |         observer: std::sync::Weak<Mutex<Box<(dyn Observer<PlaylistEvent<T>> + Send + 'static)>>>,
[INFO] [stdout]    |                                             ^                                               ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 54 -         observer: std::sync::Weak<Mutex<Box<(dyn Observer<PlaylistEvent<T>> + Send + 'static)>>>,
[INFO] [stdout] 54 +         observer: std::sync::Weak<Mutex<Box<dyn Observer<PlaylistEvent<T>> + Send + 'static >>>,
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/playlist_manager.rs:70:45
[INFO] [stdout]    |
[INFO] [stdout] 70 |         observer: std::sync::Weak<Mutex<Box<(dyn Observer<PlaylistEvent<T>> + Send + 'static)>>>,
[INFO] [stdout]    |                                             ^                                               ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 70 -         observer: std::sync::Weak<Mutex<Box<(dyn Observer<PlaylistEvent<T>> + Send + 'static)>>>,
[INFO] [stdout] 70 +         observer: std::sync::Weak<Mutex<Box<dyn Observer<PlaylistEvent<T>> + Send + 'static >>>,
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/playlist_manager.rs:106:45
[INFO] [stdout]     |
[INFO] [stdout] 106 |         observer: std::sync::Weak<Mutex<Box<(dyn Observer<PlaylistEvent<T>> + Send + 'static)>>>,
[INFO] [stdout]     |                                             ^                                               ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 106 -         observer: std::sync::Weak<Mutex<Box<(dyn Observer<PlaylistEvent<T>> + Send + 'static)>>>,
[INFO] [stdout] 106 +         observer: std::sync::Weak<Mutex<Box<dyn Observer<PlaylistEvent<T>> + Send + 'static >>>,
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/playlist_manager.rs:114:45
[INFO] [stdout]     |
[INFO] [stdout] 114 |         observer: std::sync::Weak<Mutex<Box<(dyn Observer<PlaylistEvent<T>> + Send + 'static)>>>,
[INFO] [stdout]     |                                             ^                                               ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 114 -         observer: std::sync::Weak<Mutex<Box<(dyn Observer<PlaylistEvent<T>> + Send + 'static)>>>,
[INFO] [stdout] 114 +         observer: std::sync::Weak<Mutex<Box<dyn Observer<PlaylistEvent<T>> + Send + 'static >>>,
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/playlist.rs:90:45
[INFO] [stdout]    |
[INFO] [stdout] 90 |         observer: std::sync::Weak<Mutex<Box<(dyn Observer<PlaylistEvent<T>> + Send + 'static)>>>,
[INFO] [stdout]    |                                             ^                                               ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 90 -         observer: std::sync::Weak<Mutex<Box<(dyn Observer<PlaylistEvent<T>> + Send + 'static)>>>,
[INFO] [stdout] 90 +         observer: std::sync::Weak<Mutex<Box<dyn Observer<PlaylistEvent<T>> + Send + 'static>>>,
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/playlist.rs:97:45
[INFO] [stdout]    |
[INFO] [stdout] 97 |         observer: std::sync::Weak<Mutex<Box<(dyn Observer<PlaylistEvent<T>> + Send + 'static)>>>,
[INFO] [stdout]    |                                             ^                                               ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 97 -         observer: std::sync::Weak<Mutex<Box<(dyn Observer<PlaylistEvent<T>> + Send + 'static)>>>,
[INFO] [stdout] 97 +         observer: std::sync::Weak<Mutex<Box<dyn Observer<PlaylistEvent<T>> + Send + 'static>>>,
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/playlist_manager.rs:54:45
[INFO] [stdout]    |
[INFO] [stdout] 54 |         observer: std::sync::Weak<Mutex<Box<(dyn Observer<PlaylistEvent<T>> + Send + 'static)>>>,
[INFO] [stdout]    |                                             ^                                               ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 54 -         observer: std::sync::Weak<Mutex<Box<(dyn Observer<PlaylistEvent<T>> + Send + 'static)>>>,
[INFO] [stdout] 54 +         observer: std::sync::Weak<Mutex<Box<dyn Observer<PlaylistEvent<T>> + Send + 'static >>>,
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/playlist_manager.rs:70:45
[INFO] [stdout]    |
[INFO] [stdout] 70 |         observer: std::sync::Weak<Mutex<Box<(dyn Observer<PlaylistEvent<T>> + Send + 'static)>>>,
[INFO] [stdout]    |                                             ^                                               ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 70 -         observer: std::sync::Weak<Mutex<Box<(dyn Observer<PlaylistEvent<T>> + Send + 'static)>>>,
[INFO] [stdout] 70 +         observer: std::sync::Weak<Mutex<Box<dyn Observer<PlaylistEvent<T>> + Send + 'static >>>,
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/playlist_manager.rs:106:45
[INFO] [stdout]     |
[INFO] [stdout] 106 |         observer: std::sync::Weak<Mutex<Box<(dyn Observer<PlaylistEvent<T>> + Send + 'static)>>>,
[INFO] [stdout]     |                                             ^                                               ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 106 -         observer: std::sync::Weak<Mutex<Box<(dyn Observer<PlaylistEvent<T>> + Send + 'static)>>>,
[INFO] [stdout] 106 +         observer: std::sync::Weak<Mutex<Box<dyn Observer<PlaylistEvent<T>> + Send + 'static >>>,
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/playlist_manager.rs:114:45
[INFO] [stdout]     |
[INFO] [stdout] 114 |         observer: std::sync::Weak<Mutex<Box<(dyn Observer<PlaylistEvent<T>> + Send + 'static)>>>,
[INFO] [stdout]     |                                             ^                                               ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 114 -         observer: std::sync::Weak<Mutex<Box<(dyn Observer<PlaylistEvent<T>> + Send + 'static)>>>,
[INFO] [stdout] 114 +         observer: std::sync::Weak<Mutex<Box<dyn Observer<PlaylistEvent<T>> + Send + 'static >>>,
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.60s
[INFO] running `Command { std: "docker" "inspect" "d959af27794240c1be12e24f64c1e583f4ddc77979c52e8a778eb023a0224b2c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d959af27794240c1be12e24f64c1e583f4ddc77979c52e8a778eb023a0224b2c", kill_on_drop: false }`
[INFO] [stdout] d959af27794240c1be12e24f64c1e583f4ddc77979c52e8a778eb023a0224b2c
[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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] f3c5602b79975b2f44a32d9e4087162626e90826ffa08b6e051a85215195ba9b
[INFO] running `Command { std: "docker" "start" "-a" "f3c5602b79975b2f44a32d9e4087162626e90826ffa08b6e051a85215195ba9b", kill_on_drop: false }`
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]   --> src/playlist.rs:90:45
[INFO] [stderr]    |
[INFO] [stderr] 90 |         observer: std::sync::Weak<Mutex<Box<(dyn Observer<PlaylistEvent<T>> + Send + 'static)>>>,
[INFO] [stderr]    |                                             ^                                               ^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr] 90 -         observer: std::sync::Weak<Mutex<Box<(dyn Observer<PlaylistEvent<T>> + Send + 'static)>>>,
[INFO] [stderr] 90 +         observer: std::sync::Weak<Mutex<Box<dyn Observer<PlaylistEvent<T>> + Send + 'static>>>,
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]   --> src/playlist.rs:97:45
[INFO] [stderr]    |
[INFO] [stderr] 97 |         observer: std::sync::Weak<Mutex<Box<(dyn Observer<PlaylistEvent<T>> + Send + 'static)>>>,
[INFO] [stderr]    |                                             ^                                               ^
[INFO] [stderr]    |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr] 97 -         observer: std::sync::Weak<Mutex<Box<(dyn Observer<PlaylistEvent<T>> + Send + 'static)>>>,
[INFO] [stderr] 97 +         observer: std::sync::Weak<Mutex<Box<dyn Observer<PlaylistEvent<T>> + Send + 'static>>>,
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]   --> src/playlist_manager.rs:54:45
[INFO] [stderr]    |
[INFO] [stderr] 54 |         observer: std::sync::Weak<Mutex<Box<(dyn Observer<PlaylistEvent<T>> + Send + 'static)>>>,
[INFO] [stderr]    |                                             ^                                               ^
[INFO] [stderr]    |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr] 54 -         observer: std::sync::Weak<Mutex<Box<(dyn Observer<PlaylistEvent<T>> + Send + 'static)>>>,
[INFO] [stderr] 54 +         observer: std::sync::Weak<Mutex<Box<dyn Observer<PlaylistEvent<T>> + Send + 'static >>>,
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]   --> src/playlist_manager.rs:70:45
[INFO] [stderr]    |
[INFO] [stderr] 70 |         observer: std::sync::Weak<Mutex<Box<(dyn Observer<PlaylistEvent<T>> + Send + 'static)>>>,
[INFO] [stderr]    |                                             ^                                               ^
[INFO] [stderr]    |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr] 70 -         observer: std::sync::Weak<Mutex<Box<(dyn Observer<PlaylistEvent<T>> + Send + 'static)>>>,
[INFO] [stderr] 70 +         observer: std::sync::Weak<Mutex<Box<dyn Observer<PlaylistEvent<T>> + Send + 'static >>>,
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]    --> src/playlist_manager.rs:106:45
[INFO] [stderr]     |
[INFO] [stderr] 106 |         observer: std::sync::Weak<Mutex<Box<(dyn Observer<PlaylistEvent<T>> + Send + 'static)>>>,
[INFO] [stderr]     |                                             ^                                               ^
[INFO] [stderr]     |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 106 -         observer: std::sync::Weak<Mutex<Box<(dyn Observer<PlaylistEvent<T>> + Send + 'static)>>>,
[INFO] [stderr] 106 +         observer: std::sync::Weak<Mutex<Box<dyn Observer<PlaylistEvent<T>> + Send + 'static >>>,
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]    --> src/playlist_manager.rs:114:45
[INFO] [stderr]     |
[INFO] [stderr] 114 |         observer: std::sync::Weak<Mutex<Box<(dyn Observer<PlaylistEvent<T>> + Send + 'static)>>>,
[INFO] [stderr]     |                                             ^                                               ^
[INFO] [stderr]     |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 114 -         observer: std::sync::Weak<Mutex<Box<(dyn Observer<PlaylistEvent<T>> + Send + 'static)>>>,
[INFO] [stderr] 114 +         observer: std::sync::Weak<Mutex<Box<dyn Observer<PlaylistEvent<T>> + Send + 'static >>>,
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: `tf_playlist` (lib) generated 6 warnings (run `cargo fix --lib -p tf_playlist` to apply 6 suggestions)
[INFO] [stderr] warning: `tf_playlist` (lib test) generated 6 warnings (6 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/tf_playlist-4f97465d9a593222)
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stderr]    Doc-tests tf_playlist
[INFO] [stdout] test playlist::test::playlist_toggle ... ok
[INFO] [stdout] test playlist_manager::test::playlistmanagerinternal_toggle_complex ... ok
[INFO] [stdout] test playlist_manager::test::playlistmanagerinternal_toggle_empty ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]   --> src/playlist.rs:90:45
[INFO] [stderr]    |
[INFO] [stderr] 90 |         observer: std::sync::Weak<Mutex<Box<(dyn Observer<PlaylistEvent<T>> + Send + 'static)>>>,
[INFO] [stderr]    |                                             ^                                               ^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr] 90 -         observer: std::sync::Weak<Mutex<Box<(dyn Observer<PlaylistEvent<T>> + Send + 'static)>>>,
[INFO] [stderr] 90 +         observer: std::sync::Weak<Mutex<Box<dyn Observer<PlaylistEvent<T>> + Send + 'static>>>,
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]   --> src/playlist.rs:97:45
[INFO] [stderr]    |
[INFO] [stderr] 97 |         observer: std::sync::Weak<Mutex<Box<(dyn Observer<PlaylistEvent<T>> + Send + 'static)>>>,
[INFO] [stderr]    |                                             ^                                               ^
[INFO] [stderr]    |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr] 97 -         observer: std::sync::Weak<Mutex<Box<(dyn Observer<PlaylistEvent<T>> + Send + 'static)>>>,
[INFO] [stderr] 97 +         observer: std::sync::Weak<Mutex<Box<dyn Observer<PlaylistEvent<T>> + Send + 'static>>>,
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]   --> src/playlist_manager.rs:54:45
[INFO] [stderr]    |
[INFO] [stderr] 54 |         observer: std::sync::Weak<Mutex<Box<(dyn Observer<PlaylistEvent<T>> + Send + 'static)>>>,
[INFO] [stderr]    |                                             ^                                               ^
[INFO] [stderr]    |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr] 54 -         observer: std::sync::Weak<Mutex<Box<(dyn Observer<PlaylistEvent<T>> + Send + 'static)>>>,
[INFO] [stderr] 54 +         observer: std::sync::Weak<Mutex<Box<dyn Observer<PlaylistEvent<T>> + Send + 'static >>>,
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]   --> src/playlist_manager.rs:70:45
[INFO] [stderr]    |
[INFO] [stderr] 70 |         observer: std::sync::Weak<Mutex<Box<(dyn Observer<PlaylistEvent<T>> + Send + 'static)>>>,
[INFO] [stderr]    |                                             ^                                               ^
[INFO] [stderr]    |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr] 70 -         observer: std::sync::Weak<Mutex<Box<(dyn Observer<PlaylistEvent<T>> + Send + 'static)>>>,
[INFO] [stderr] 70 +         observer: std::sync::Weak<Mutex<Box<dyn Observer<PlaylistEvent<T>> + Send + 'static >>>,
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]    --> src/playlist_manager.rs:106:45
[INFO] [stderr]     |
[INFO] [stderr] 106 |         observer: std::sync::Weak<Mutex<Box<(dyn Observer<PlaylistEvent<T>> + Send + 'static)>>>,
[INFO] [stderr]     |                                             ^                                               ^
[INFO] [stderr]     |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 106 -         observer: std::sync::Weak<Mutex<Box<(dyn Observer<PlaylistEvent<T>> + Send + 'static)>>>,
[INFO] [stderr] 106 +         observer: std::sync::Weak<Mutex<Box<dyn Observer<PlaylistEvent<T>> + Send + 'static >>>,
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]    --> src/playlist_manager.rs:114:45
[INFO] [stderr]     |
[INFO] [stderr] 114 |         observer: std::sync::Weak<Mutex<Box<(dyn Observer<PlaylistEvent<T>> + Send + 'static)>>>,
[INFO] [stderr]     |                                             ^                                               ^
[INFO] [stderr]     |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 114 -         observer: std::sync::Weak<Mutex<Box<(dyn Observer<PlaylistEvent<T>> + Send + 'static)>>>,
[INFO] [stderr] 114 +         observer: std::sync::Weak<Mutex<Box<dyn Observer<PlaylistEvent<T>> + Send + 'static >>>,
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: 6 warnings emitted
[INFO] [stderr] 
[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" "f3c5602b79975b2f44a32d9e4087162626e90826ffa08b6e051a85215195ba9b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f3c5602b79975b2f44a32d9e4087162626e90826ffa08b6e051a85215195ba9b", kill_on_drop: false }`
[INFO] [stdout] f3c5602b79975b2f44a32d9e4087162626e90826ffa08b6e051a85215195ba9b