[INFO] fetching crate squeak 0.2.0...
[INFO] testing squeak-0.2.0 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate squeak 0.2.0 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate squeak 0.2.0
[INFO] finished tweaking crates.io crate squeak 0.2.0
[INFO] tweaked toml for crates.io crate squeak 0.2.0 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate squeak 0.2.0 on toolchain beta-2025-09-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "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-2025-09-21" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 19 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-2025-09-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ac1330ee972aadac6d260ef66b0b2efe5d96b31322e47f6c9fefab6f6a60e128
[INFO] running `Command { std: "docker" "start" "-a" "ac1330ee972aadac6d260ef66b0b2efe5d96b31322e47f6c9fefab6f6a60e128", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ac1330ee972aadac6d260ef66b0b2efe5d96b31322e47f6c9fefab6f6a60e128", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ac1330ee972aadac6d260ef66b0b2efe5d96b31322e47f6c9fefab6f6a60e128", kill_on_drop: false }`
[INFO] [stdout] ac1330ee972aadac6d260ef66b0b2efe5d96b31322e47f6c9fefab6f6a60e128
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 40a8ba5c3ecfc229d8baceebad2c891969683ced09ad462fe6be2ad027242492
[INFO] running `Command { std: "docker" "start" "-a" "40a8ba5c3ecfc229d8baceebad2c891969683ced09ad462fe6be2ad027242492", kill_on_drop: false }`
[INFO] [stderr]    Compiling squeak v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.38s
[INFO] running `Command { std: "docker" "inspect" "40a8ba5c3ecfc229d8baceebad2c891969683ced09ad462fe6be2ad027242492", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "40a8ba5c3ecfc229d8baceebad2c891969683ced09ad462fe6be2ad027242492", kill_on_drop: false }`
[INFO] [stdout] 40a8ba5c3ecfc229d8baceebad2c891969683ced09ad462fe6be2ad027242492
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 116a094f023e2ffc73db1c78b37c83d97ba4d2b38077411333d8fa1ca51c0197
[INFO] running `Command { std: "docker" "start" "-a" "116a094f023e2ffc73db1c78b37c83d97ba4d2b38077411333d8fa1ca51c0197", kill_on_drop: false }`
[INFO] [stderr]    Compiling squeak v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.01s
[INFO] running `Command { std: "docker" "inspect" "116a094f023e2ffc73db1c78b37c83d97ba4d2b38077411333d8fa1ca51c0197", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "116a094f023e2ffc73db1c78b37c83d97ba4d2b38077411333d8fa1ca51c0197", kill_on_drop: false }`
[INFO] [stdout] 116a094f023e2ffc73db1c78b37c83d97ba4d2b38077411333d8fa1ca51c0197
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 82d3ee3947a7987995ee10ebf2a08c23cf697be89a83271ad2f658422ae5e8dd
[INFO] running `Command { std: "docker" "start" "-a" "82d3ee3947a7987995ee10ebf2a08c23cf697be89a83271ad2f658422ae5e8dd", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/squeak-efd419b44142b8ad)
[INFO] [stderr]      Running tests/test_delegate.rs (/opt/rustwide/target/debug/deps/test_delegate-2bb7031d3e574d87)
[INFO] [stdout] 
[INFO] [stderr]      Running tests/test_observable.rs (/opt/rustwide/target/debug/deps/test_observable-9dc22a9e27258444)
[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] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test can_unsubscribe_using_response_value ... ok
[INFO] [stdout] test can_subscribe_during_callback ... ok
[INFO] [stdout] test cannot_unsubscribe_using_subscription_from_a_different_delegate ... ok
[INFO] [stdout] test delegate_executes_callbacks ... ok
[INFO] [stdout] test delegate_does_not_execute_unsubscribed_callbacks ... ok
[INFO] [stdout] test unsubscribing_within_callback_is_noop ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test observable_broadcasts_new_values ... ok
[INFO] [stdout] test observable_no_longer_notifies_after_unsubscribe ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests squeak
[INFO] [stdout] 
[INFO] [stdout] running 12 tests
[INFO] [stdout] test src/observable.rs - observable::Observable<'o,T>::delegate (line 86) ... ok
[INFO] [stdout] test src/observable.rs - observable::Observable (line 8) ... ok
[INFO] [stdout] test src/delegate.rs - delegate::Delegate<'d,T>::broadcast (line 90) ... ok
[INFO] [stdout] test src/delegate.rs - delegate::Delegate<'_,()>::notify (line 130) ... ok
[INFO] [stdout] test src/lib.rs - (line 10) ... ok
[INFO] [stdout] test src/lib.rs - (line 28) ... ok
[INFO] [stdout] test src/observable.rs - observable::Observable<'o,T>::subscribe (line 48) ... ok
[INFO] [stdout] test src/observable.rs - observable::Observable<'o,T>::new (line 33) ... ok
[INFO] [stdout] test src/delegate.rs - delegate::Delegate<'d,T>::unsubscribe (line 69) ... ok
[INFO] [stdout] test src/observable.rs - observable::Observable<'o,T>::unsubscribe (line 66) ... ok
[INFO] [stdout] test src/delegate.rs - delegate::Delegate<'d,T>::subscribe (line 44) ... ok
[INFO] [stdout] test src/observable.rs - observable::Observable<'o,T>::mutate (line 109) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 12 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.75s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "82d3ee3947a7987995ee10ebf2a08c23cf697be89a83271ad2f658422ae5e8dd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "82d3ee3947a7987995ee10ebf2a08c23cf697be89a83271ad2f658422ae5e8dd", kill_on_drop: false }`
[INFO] [stdout] 82d3ee3947a7987995ee10ebf2a08c23cf697be89a83271ad2f658422ae5e8dd