[INFO] fetching crate observable-property 0.4.1...
[INFO] testing observable-property-0.4.1 against try#db823df02fd0c2cf67b43025ac3fef3f2d743245 for pr-150681
[INFO] extracting crate observable-property 0.4.1 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate observable-property 0.4.1
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate observable-property 0.4.1
[INFO] tweaked toml for crates.io crate observable-property 0.4.1 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate observable-property 0.4.1 on toolchain db823df02fd0c2cf67b43025ac3fef3f2d743245
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+db823df02fd0c2cf67b43025ac3fef3f2d743245" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate observable-property 0.4.1 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" "+db823df02fd0c2cf67b43025ac3fef3f2d743245" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+db823df02fd0c2cf67b43025ac3fef3f2d743245" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b88cc436ec1e9ab29c6dca62ec53e73daac1924cd7f1e868ea97ee675c499ed0
[INFO] running `Command { std: "docker" "start" "-a" "b88cc436ec1e9ab29c6dca62ec53e73daac1924cd7f1e868ea97ee675c499ed0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b88cc436ec1e9ab29c6dca62ec53e73daac1924cd7f1e868ea97ee675c499ed0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b88cc436ec1e9ab29c6dca62ec53e73daac1924cd7f1e868ea97ee675c499ed0", kill_on_drop: false }`
[INFO] [stdout] b88cc436ec1e9ab29c6dca62ec53e73daac1924cd7f1e868ea97ee675c499ed0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+db823df02fd0c2cf67b43025ac3fef3f2d743245" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a8e8c3a96780e4e5117fe59bcb672e86970ed48ca746acf52e2b5210f849171a
[INFO] running `Command { std: "docker" "start" "-a" "a8e8c3a96780e4e5117fe59bcb672e86970ed48ca746acf52e2b5210f849171a", kill_on_drop: false }`
[INFO] [stderr]    Compiling observable-property v0.4.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.25s
[INFO] running `Command { std: "docker" "inspect" "a8e8c3a96780e4e5117fe59bcb672e86970ed48ca746acf52e2b5210f849171a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a8e8c3a96780e4e5117fe59bcb672e86970ed48ca746acf52e2b5210f849171a", kill_on_drop: false }`
[INFO] [stdout] a8e8c3a96780e4e5117fe59bcb672e86970ed48ca746acf52e2b5210f849171a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+db823df02fd0c2cf67b43025ac3fef3f2d743245" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] be17353b32fa1d0002c259a68d3735571ea074cf1baab254959ae7b5eeb825f8
[INFO] running `Command { std: "docker" "start" "-a" "be17353b32fa1d0002c259a68d3735571ea074cf1baab254959ae7b5eeb825f8", kill_on_drop: false }`
[INFO] [stderr]    Compiling observable-property v0.4.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: method `set_age` is never used
[INFO] [stdout]   --> examples/multithreaded.rs:33:8
[INFO] [stdout]    |
[INFO] [stdout] 13 | impl Person {
[INFO] [stdout]    | ----------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 33 |     fn set_age(&self, new_age: i32) -> Result<(), observable_property::PropertyError> {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 2.15s
[INFO] running `Command { std: "docker" "inspect" "be17353b32fa1d0002c259a68d3735571ea074cf1baab254959ae7b5eeb825f8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "be17353b32fa1d0002c259a68d3735571ea074cf1baab254959ae7b5eeb825f8", kill_on_drop: false }`
[INFO] [stdout] be17353b32fa1d0002c259a68d3735571ea074cf1baab254959ae7b5eeb825f8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+db823df02fd0c2cf67b43025ac3fef3f2d743245" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] a66084576f26bdf9100f38345b4f255b0b560f944fe117506aa30b8f6d3cfb67
[INFO] running `Command { std: "docker" "start" "-a" "a66084576f26bdf9100f38345b4f255b0b560f944fe117506aa30b8f6d3cfb67", kill_on_drop: false }`
[INFO] [stderr] warning: method `set_age` is never used
[INFO] [stderr]   --> examples/multithreaded.rs:33:8
[INFO] [stdout] 
[INFO] [stderr]    |
[INFO] [stdout] running 59 tests
[INFO] [stderr] 13 | impl Person {
[INFO] [stderr]    | ----------- method in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 33 |     fn set_age(&self, new_age: i32) -> Result<(), observable_property::PropertyError> {
[INFO] [stderr]    |        ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `observable-property` (example "multithreaded") generated 1 warning
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/observable_property-440865809f89d5aa)
[INFO] [stdout] test tests::test_filtered_subscription_automatic_cleanup ... ok
[INFO] [stdout] test tests::test_filtered_observer ... ok
[INFO] [stdout] test tests::test_filtered_subscription_respects_observer_limit ... ok
[INFO] [stdout] test tests::test_filtered_subscription_vs_manual_filtered ... ok
[INFO] [stdout] test tests::test_multiple_filtered_subscriptions ... ok
[INFO] [stdout] test tests::test_filtered_subscription_complex_filter ... ok
[INFO] [stdout] test tests::test_multiple_subscriptions_with_cleanup ... ok
[INFO] [stdout] test tests::test_notify_observers_batch_empty ... ok
[INFO] [stdout] test tests::test_notify_observers_batch_multiple_changes ... ok
[INFO] [stdout] test tests::test_observer_id_wraparound ... ok
[INFO] [stdout] test tests::test_concurrent_subscribe_unsubscribe ... ok
[INFO] [stdout] test tests::test_observer_limit_with_raii_subscriptions ... ok
[INFO] [stdout] test tests::test_observer_limit_with_unsubscribe ... ok
[INFO] [stdout] test tests::test_observer_limit_enforcement ... ok
[INFO] [stdout] test tests::test_observer_limit_error_message ... ok
[INFO] [stdout] test tests::test_observer_with_mutable_state ... ok
[INFO] [stdout] test tests::test_observer_subscription_and_notification ... ok
[INFO] [stdout] test tests::test_observer_limit_concurrent_subscriptions ... ok
[INFO] [stdout] test tests::test_subscription_automatic_cleanup ... ok
[INFO] [stdout] test tests::test_property_creation_and_basic_operations ... ok
[INFO] [stdout] test tests::test_filtered_subscription_with_panicking_filter ... ok
[INFO] [stdout] test tests::test_lock_poisoning ... ok
[INFO] [stdout] test tests::test_multiple_observer_panics_isolation ... ok
[INFO] [stdout] test tests::test_multiple_subscription_cleanup_with_poisoned_lock ... ok
[INFO] [stdout] test tests::test_notify_observers_batch_panic_isolation ... ok
[INFO] [stdout] test tests::test_filtered_subscription_error_handling ... ok
[INFO] [stdout] test tests::test_subscription_explicit_drop ... ok
[INFO] [stdout] test tests::test_observer_panic_isolation ... ok
[INFO] [stdout] test tests::test_subscribe_with_subscription_error_handling ... ok
[INFO] [stdout] test tests::test_subscription_behavior_before_and_after_poison ... ok
[INFO] [stdout] test tests::test_subscription_cross_thread_drop ... ok
[INFO] [stdout] test tests::test_subscription_in_conditional_blocks ... ok
[INFO] [stdout] test tests::test_subscription_move_semantics ... ok
[INFO] [stdout] test tests::test_subscription_vs_manual_unsubscribe ... ok
[INFO] [stdout] test tests::test_subscription_cleanup_behavior_with_poisoned_lock ... ok
[INFO] [stdout] test tests::test_subscription_with_early_return ... ok
[INFO] [stdout] test tests::test_subscription_with_property_cloning ... ok
[INFO] [stdout] test tests::test_subscription_drop_with_poisoned_lock ... ok
[INFO] [stdout] test tests::test_with_max_threads_creation ... ok
[INFO] [stdout] test tests::test_with_max_threads_error_handling ... ok
[INFO] [stdout] test tests::test_concurrent_subscription_drops_with_poison ... ok
[INFO] [stdout] test tests::test_unsubscribe_nonexistent_observer ... ok
[INFO] [stdout] test tests::test_subscription_creation_with_poisoned_lock ... ok
[INFO] [stdout] test tests::test_subscription_thread_safety ... ok
[INFO] [stdout] test tests::test_with_max_threads_zero_defaults_to_max_threads ... ok
[INFO] [stdout] test tests::test_filtered_subscription_thread_safety ... ok
[INFO] [stdout] test tests::test_concurrent_subscription_creation_and_property_changes ... ok
[INFO] [stdout] test tests::test_with_max_threads_basic_functionality ... ok
[INFO] [stdout] test tests::test_with_max_threads_large_values ... ok
[INFO] [stdout] test tests::test_with_max_threads_vs_regular_constructor ... ok
[INFO] [stdout] test tests::test_async_observer_panic_isolation ... ok
[INFO] [stdout] test tests::test_subscription_with_async_property_changes ... ok
[INFO] [stdout] test tests::test_notify_observers_batch_releases_lock_early ... ok
[INFO] [stdout] test tests::test_with_max_threads_clone_behavior ... ok
[INFO] [stdout] test tests::test_async_set_performance ... ok
[INFO] [stdout] test tests::test_with_max_threads_thread_safety ... ok
[INFO] [stdout] test tests::test_thread_safety_concurrent_reads ... ok
[INFO] [stdout] test tests::test_with_max_threads_async_performance ... ok
[INFO] [stdout] test tests::test_very_large_observer_count ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 59 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.31s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests observable_property
[INFO] [stdout] 
[INFO] [stdout] running 38 tests
[INFO] [stdout] test src/lib.rs - (line 137) ... ok
[INFO] [stdout] test src/lib.rs - (line 80) ... ok
[INFO] [stdout] test src/lib.rs - ObservableProperty (line 587) ... ok
[INFO] [stdout] test src/lib.rs - (line 108) ... ok
[INFO] [stdout] test src/lib.rs - (line 166) ... ok
[INFO] [stdout] test src/lib.rs - (line 51) ... ok
[INFO] [stdout] test src/lib.rs - ObservableProperty<T>::get (line 757) ... ok
[INFO] [stdout] test src/lib.rs - ObservableProperty<T>::new (line 632) ... ok
[INFO] [stdout] test src/lib.rs - (line 20) ... ok
[INFO] [stdout] test src/lib.rs - ObservableProperty<T>::modify (line 1746) ... ok
[INFO] [stdout] test src/lib.rs - ObservableProperty<T>::subscribe_filtered_with_subscription (line 1467) ... ok
[INFO] [stdout] test src/lib.rs - ObservableProperty<T>::subscribe_filtered_with_subscription (line 1538) ... ok
[INFO] [stdout] test src/lib.rs - ObservableProperty<T>::subscribe_with_subscription (line 1373) ... ok
[INFO] [stdout] test src/lib.rs - ObservableProperty<T>::subscribe_with_subscription (line 1339) ... ok
[INFO] [stdout] test src/lib.rs - ObservableProperty<T>::subscribe (line 1049) ... ok
[INFO] [stdout] test src/lib.rs - ObservableProperty<T>::subscribe_with_subscription (line 1314) ... ok
[INFO] [stdout] test src/lib.rs - ObservableProperty<T>::subscribe_filtered (line 1165) ... ok
[INFO] [stdout] test src/lib.rs - ObservableProperty<T>::with_max_threads (line 676) ... ok
[INFO] [stdout] test src/lib.rs - ObservableProperty<T>::set_async (line 951) ... ok
[INFO] [stdout] test src/lib.rs - ObservableProperty<T>::set_async (line 922) ... ok
[INFO] [stdout] test src/lib.rs - ObservableProperty<T>::with_max_threads (line 684) ... ok
[INFO] [stdout] test src/lib.rs - ObservableProperty<T>::subscribe_with_subscription (line 1402) ... ok
[INFO] [stdout] test src/lib.rs - ObservableProperty<T>::subscribe_filtered_with_subscription (line 1497) ... ok
[INFO] [stdout] test src/lib.rs - ObservableProperty<T>::try_get (line 1720) ... ok
[INFO] [stdout] test src/lib.rs - ObservableProperty<T>::unsubscribe (line 1113) ... ok
[INFO] [stdout] test src/lib.rs - Subscription (line 493) ... ok
[INFO] [stdout] test src/lib.rs - ObservableProperty<T>::with_config (line 1650) ... ok
[INFO] [stdout] test src/lib.rs - ObservableProperty<T>::subscribe_filtered_with_subscription (line 1573) ... ok
[INFO] [stdout] test src/lib.rs - ObservableProperty<T>::set (line 798) ... ok
[INFO] [stdout] test src/lib.rs - ObservableProperty<T>::clone (line 1832) ... ok
[INFO] [stdout] test src/lib.rs - ObservableProperty<T>::with_max_threads (line 692) ... ok
[INFO] [stdout] test src/lib.rs - Subscription (line 460) ... ok
[INFO] [stdout] test src/lib.rs - ObservableProperty<T>::observer_count (line 1680) ... ok
[INFO] [stdout] test src/lib.rs - ObservableProperty<T>::notify_observers_batch (line 1235) ... ok
[INFO] [stdout] test src/lib.rs - ObservableProperty<T>::get_or_default (line 1808) ... ok
[INFO] [stdout] test src/lib.rs - ObservableProperty<T>::with_max_threads (line 713) ... ok
[INFO] [stdout] test src/lib.rs - Subscription (line 435) ... ok
[INFO] [stdout] test src/lib.rs - ObservableProperty<T>::set_async (line 882) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 38 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.04s
[INFO] [stdout] 
[INFO] [stdout] all doctests ran in 1.15s; merged doctests compilation took 1.10s
[INFO] running `Command { std: "docker" "inspect" "a66084576f26bdf9100f38345b4f255b0b560f944fe117506aa30b8f6d3cfb67", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a66084576f26bdf9100f38345b4f255b0b560f944fe117506aa30b8f6d3cfb67", kill_on_drop: false }`
[INFO] [stdout] a66084576f26bdf9100f38345b4f255b0b560f944fe117506aa30b8f6d3cfb67