[INFO] fetching crate observable-property 0.2.1...
[INFO] testing observable-property-0.2.1 against master#cdb45c87e2cd43495379f7e867e3cc15dcee9f93 for pr-145838-1
[INFO] extracting crate observable-property 0.2.1 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate observable-property 0.2.1
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate observable-property 0.2.1
[INFO] tweaked toml for crates.io crate observable-property 0.2.1 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate observable-property 0.2.1 on toolchain cdb45c87e2cd43495379f7e867e3cc15dcee9f93
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate observable-property 0.2.1 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" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c8ad2a393049ac16c2dc2ddc64ca24fc70198ef53d52ab65da5827bb2d0d3021
[INFO] running `Command { std: "docker" "start" "-a" "c8ad2a393049ac16c2dc2ddc64ca24fc70198ef53d52ab65da5827bb2d0d3021", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c8ad2a393049ac16c2dc2ddc64ca24fc70198ef53d52ab65da5827bb2d0d3021", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c8ad2a393049ac16c2dc2ddc64ca24fc70198ef53d52ab65da5827bb2d0d3021", kill_on_drop: false }`
[INFO] [stdout] c8ad2a393049ac16c2dc2ddc64ca24fc70198ef53d52ab65da5827bb2d0d3021
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d37c7fddc2e4a72d049b96ac006b87671f87651e9b494d9c3f7a26997822d3f3
[INFO] running `Command { std: "docker" "start" "-a" "d37c7fddc2e4a72d049b96ac006b87671f87651e9b494d9c3f7a26997822d3f3", kill_on_drop: false }`
[INFO] [stderr]    Compiling observable-property v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.22s
[INFO] running `Command { std: "docker" "inspect" "d37c7fddc2e4a72d049b96ac006b87671f87651e9b494d9c3f7a26997822d3f3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d37c7fddc2e4a72d049b96ac006b87671f87651e9b494d9c3f7a26997822d3f3", kill_on_drop: false }`
[INFO] [stdout] d37c7fddc2e4a72d049b96ac006b87671f87651e9b494d9c3f7a26997822d3f3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] edffdd9e7605501f9b8e921eb309e1792fdd44e8e0bc14d9ccccab3697d6c832
[INFO] running `Command { std: "docker" "start" "-a" "edffdd9e7605501f9b8e921eb309e1792fdd44e8e0bc14d9ccccab3697d6c832", kill_on_drop: false }`
[INFO] [stderr]    Compiling observable-property v0.2.1 (/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 2.22s
[INFO] running `Command { std: "docker" "inspect" "edffdd9e7605501f9b8e921eb309e1792fdd44e8e0bc14d9ccccab3697d6c832", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "edffdd9e7605501f9b8e921eb309e1792fdd44e8e0bc14d9ccccab3697d6c832", kill_on_drop: false }`
[INFO] [stdout] edffdd9e7605501f9b8e921eb309e1792fdd44e8e0bc14d9ccccab3697d6c832
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 4abb396c91e8c3787650092de45d526ee729a94e4c2a3f434aae39105a5a1fc4
[INFO] running `Command { std: "docker" "start" "-a" "4abb396c91e8c3787650092de45d526ee729a94e4c2a3f434aae39105a5a1fc4", kill_on_drop: false }`
[INFO] [stderr] warning: method `set_age` is never used
[INFO] [stderr]   --> examples/multithreaded.rs:33:8
[INFO] [stderr]    |
[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-1fb32a4dce2ae5b3)
[INFO] [stdout] 
[INFO] [stdout] running 10 tests
[INFO] [stdout] test tests::test_complex_custom_types ... ok
[INFO] [stdout] test tests::test_filtered_observer ... ok
[INFO] [stdout] test tests::test_observer_subscription_and_notification ... ok
[INFO] [stdout] test tests::test_unsubscribe_nonexistent_observer ... ok
[INFO] [stdout] test tests::test_property_creation_and_basic_operations ... ok
[INFO] [stdout] test tests::test_observer_id_edge_cases ... ok
[INFO] [stdout] test tests::test_observer_panic_isolation ... ok
[INFO] [stdout] test tests::test_lock_poisoning ... ok
[INFO] [stdout] test tests::test_thread_safety_concurrent_reads ... ok
[INFO] [stdout] test tests::test_async_set_performance ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 10 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.16s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests observable_property
[INFO] [stdout] 
[INFO] [stdout] running 11 tests
[INFO] [stdout] test src/lib.rs - ObservableProperty (line 155) ... ok
[INFO] [stdout] test src/lib.rs - ObservableProperty<T>::subscribe (line 412) ... ok
[INFO] [stdout] test src/lib.rs - ObservableProperty<T>::new (line 198) ... ok
[INFO] [stdout] test src/lib.rs - ObservableProperty<T>::subscribe_filtered (line 501) ... ok
[INFO] [stdout] test src/lib.rs - ObservableProperty<T>::clone (line 545) ... ok
[INFO] [stdout] test src/lib.rs - ObservableProperty<T>::set (line 266) ... ok
[INFO] [stdout] test src/lib.rs - ObservableProperty<T>::set_async (line 332) ... ok
[INFO] [stdout] test src/lib.rs - ObservableProperty<T>::get (line 229) ... ok
[INFO] [stdout] test src/lib.rs - (line 48) ... ok
[INFO] [stdout] test src/lib.rs - ObservableProperty<T>::unsubscribe (line 460) ... ok
[INFO] [stdout] test src/lib.rs - (line 17) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 11 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "4abb396c91e8c3787650092de45d526ee729a94e4c2a3f434aae39105a5a1fc4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4abb396c91e8c3787650092de45d526ee729a94e4c2a3f434aae39105a5a1fc4", kill_on_drop: false }`
[INFO] [stdout] 4abb396c91e8c3787650092de45d526ee729a94e4c2a3f434aae39105a5a1fc4