[INFO] fetching crate drumbeat 0.1.1...
[INFO] testing drumbeat-0.1.1 against try#d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2 for pr-86479
[INFO] extracting crate drumbeat 0.1.1 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate drumbeat 0.1.1 on toolchain d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate drumbeat 0.1.1
[INFO] finished tweaking crates.io crate drumbeat 0.1.1
[INFO] tweaked toml for crates.io crate drumbeat 0.1.1 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate drumbeat 0.1.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 5258eec8177b503af1bd67bfe9536bde201de6c289031e577d43740acedf9259
[INFO] running `Command { std: "docker" "start" "-a" "5258eec8177b503af1bd67bfe9536bde201de6c289031e577d43740acedf9259", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5258eec8177b503af1bd67bfe9536bde201de6c289031e577d43740acedf9259", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5258eec8177b503af1bd67bfe9536bde201de6c289031e577d43740acedf9259", kill_on_drop: false }`
[INFO] [stdout] 5258eec8177b503af1bd67bfe9536bde201de6c289031e577d43740acedf9259
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d3c9c4153186a8cc2def9a5a3a046e2041d229a71308c29a9f3f400c0e1d91db
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "d3c9c4153186a8cc2def9a5a3a046e2041d229a71308c29a9f3f400c0e1d91db", kill_on_drop: false }`
[INFO] [stderr]    Compiling ppv-lite86 v0.2.10
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling libc v0.2.89
[INFO] [stderr]    Compiling getrandom v0.2.2
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling rand_core v0.6.2
[INFO] [stderr]    Compiling rand_chacha v0.3.0
[INFO] [stderr]    Compiling rand v0.8.3
[INFO] [stderr]    Compiling drumbeat v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.78s
[INFO] running `Command { std: "docker" "inspect" "d3c9c4153186a8cc2def9a5a3a046e2041d229a71308c29a9f3f400c0e1d91db", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d3c9c4153186a8cc2def9a5a3a046e2041d229a71308c29a9f3f400c0e1d91db", kill_on_drop: false }`
[INFO] [stdout] d3c9c4153186a8cc2def9a5a3a046e2041d229a71308c29a9f3f400c0e1d91db
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f95b416f0a4ec778cebf02f16f5b9370474e3ba915de91b50e7913f35f1e664b
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "f95b416f0a4ec778cebf02f16f5b9370474e3ba915de91b50e7913f35f1e664b", kill_on_drop: false }`
[INFO] [stderr]    Compiling drumbeat v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 6.24s
[INFO] running `Command { std: "docker" "inspect" "f95b416f0a4ec778cebf02f16f5b9370474e3ba915de91b50e7913f35f1e664b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f95b416f0a4ec778cebf02f16f5b9370474e3ba915de91b50e7913f35f1e664b", kill_on_drop: false }`
[INFO] [stdout] f95b416f0a4ec778cebf02f16f5b9370474e3ba915de91b50e7913f35f1e664b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] f88b72a081bc7bd58d2378acf7c547b4490f8ad250e102400390436fdc5daf6e
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "f88b72a081bc7bd58d2378acf7c547b4490f8ad250e102400390436fdc5daf6e", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/drumbeat-99f8a688b8b3a39e)
[INFO] [stdout] 
[INFO] [stdout] running 41 tests
[INFO] [stdout] test event::observable::test::observable_of_test ... ok
[INFO] [stdout] test event::observable::test::id_unique_test ... ok
[INFO] [stdout] test event::ops::test::collect_test ... ok
[INFO] [stdout] test event::ops::test::assert_count_test ... ok
[INFO] [stdout] test event::subject::test::basic_subject_new_blocking_test ... ok
[INFO] [stdout] test event::ops::test::take_test ... ok
[INFO] [stdout] test event::ops::test::take_until_test ... ok
[INFO] [stdout] test event::observable::test::funnel_target_unsubscribe_test ... ok
[INFO] [stdout] test event::ops::test::skip_test ... ok
[INFO] [stdout] test event::ops::test::assert_test ... ok
[INFO] [stdout] test event::subject::test::basic_subject_new_runtime_test ... ok
[INFO] [stdout] test event::subject::test::queuing_subject_push_flush_test ... ok
[INFO] [stdout] test event::ops::test::map_test ... ok
[INFO] [stdout] test event::ops::test::take_while_test ... ok
[INFO] [stdout] test event::ops::test::first_test ... ok
[INFO] [stdout] test event::ops::test::filter_test ... ok
[INFO] [stdout] test event::ops::test::tap_test ... ok
[INFO] [stdout] test event::subject::test::queuing_subject_new_runtime_test ... ok
[INFO] [stdout] test event::subject::test::queuing_subject_new_blocking_test ... ok
[INFO] [stdout] test event::subject::test::basic_subject_new_pool_test ... ok
[INFO] [stdout] test sync::buffer::test::get_filled_test ... ok
[INFO] [stdout] test sync::buffer::test::new_ring_buffer_test ... ok
[INFO] [stdout] test sync::buffer::test::get_wraparound_test ... ok
[INFO] [stdout] test sync::buffer::test::push_test ... ok
[INFO] [stdout] test event::subject::test::basic_subject_next_test ... ok
[INFO] [stdout] test sync::worker::test::worker_new_test ... ok
[INFO] [stdout] test sync::threadpool::test::thread_builder_test ... ok
[INFO] [stdout] test sync::worker::test::worker_healthy_task_test ... ok
[INFO] [stdout] test sync::buffer::test::overflow_test ... ok
[INFO] [stdout] test event::observable::test::funnel_new_test ... ok
[INFO] [stdout] test sync::threadpool::test::submit_threadpool_jobs_test ... ok
[INFO] [stdout] test event::subject::test::queuing_subject_new_pool_test ... ok
[INFO] [stdout] test sync::buffer::test::get_unfilled_test ... ok
[INFO] [stdout] test sync::runtime::test::submit_runtime_jobs_test ... ok
[INFO] [stdout] test event::ops::test::assert_panic_test - should panic ... ok
[INFO] [stdout] test event::ops::test::assert_count_panic_test - should panic ... ok
[INFO] [stdout] test sync::worker::test::worker_unhealthy_task_test - should panic ... ok
[INFO] [stdout] test utils::testing::test::interrupt_panic_passthrough_test - should panic ... ok
[INFO] [stdout] test utils::testing::test::panic_after_timeout_test - should panic ... ok
[INFO] [stdout] test event::ops::test::debounce_test ... ok
[INFO] [stdout] test utils::testing::test::no_panic_after_timeout_test ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 41 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.03s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/event_test.rs (/opt/rustwide/target/debug/deps/event_test-33c5b415d61eb664)
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test first_subject_test ... ok
[INFO] [stdout] test complex_pipe_test ... ok
[INFO] [stdout] test take_observable_of_test ... ok
[INFO] [stdout] test map_event_to_string_test ... ok
[INFO] [stdout] test multi_observable_test ... ok
[INFO] [stdout] test simple_event_test ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.06s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/sync_test.rs (/opt/rustwide/target/debug/deps/sync_test-9dc3e6eb57ad89bb)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test runtime_test ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests drumbeat
[INFO] [stdout] 
[INFO] [stdout] running 21 tests
[INFO] [stdout] test src/event/ops.rs - event::ops::Dangling::dangling (line 517) ... ok
[INFO] [stdout] test src/event/observable.rs - event::observable::Pipe<T>::observe (line 200) ... ok
[INFO] [stdout] test src/event/ops.rs - event::ops::First::first (line 276) ... ok
[INFO] [stdout] test src/event/observable.rs - event::observable::Observable<T>::pipe (line 568) ... ok
[INFO] [stdout] test src/event/observable.rs - event::observable::Pipe<T>::subscribe (line 237) ... ok
[INFO] [stdout] test src/event/observable.rs - event::observable::Pipe (line 87) ... ok
[INFO] [stdout] test src/event/ops.rs - event::ops::Take::take (line 70) ... ok
[INFO] [stdout] test src/event/ops.rs - event::ops::Collect::collect (line 419) ... ok
[INFO] [stdout] test src/event/ops.rs - event::ops::Skip::skip (line 322) ... ok
[INFO] [stdout] test src/event/observable.rs - event::observable::Observable<T>::of (line 534) ... ok
[INFO] [stdout] test src/event/ops.rs - event::ops::Filter::filter (line 369) ... ok
[INFO] [stdout] test src/event/ops.rs - event::ops::Assert::assert (line 675) ... ok
[INFO] [stdout] test src/event/ops.rs - event::ops::Assert::assert_count (line 697) ... ok
[INFO] [stdout] test src/event/ops.rs - event::ops::Map::map (line 20) ... ok
[INFO] [stdout] test src/sync/threadpool.rs - sync::threadpool::ThreadPool::submit (line 109) ... ok
[INFO] [stdout] test src/sync/worker.rs - sync::worker::Worker<T>::submit (line 135) ... ok
[INFO] [stdout] test src/event/observable.rs - event::observable::Observable<T>::merge (line 497) ... ok
[INFO] [stdout] test src/event/ops.rs - event::ops::Tap::tap (line 468) ... ok
[INFO] [stdout] test src/event/ops.rs - event::ops::TakeWhile::take_while (line 215) ... ok
[INFO] [stdout] test src/event/ops.rs - event::ops::Debounce::debounce_for (line 558) ... ok
[INFO] [stdout] test src/event/ops.rs - event::ops::TakeUntil::take_until (line 127) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 21 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 6.54s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "f88b72a081bc7bd58d2378acf7c547b4490f8ad250e102400390436fdc5daf6e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f88b72a081bc7bd58d2378acf7c547b4490f8ad250e102400390436fdc5daf6e", kill_on_drop: false }`
[INFO] [stdout] f88b72a081bc7bd58d2378acf7c547b4490f8ad250e102400390436fdc5daf6e