[INFO] fetching crate swmr-cell 0.3.1...
[INFO] testing swmr-cell-0.3.1 against try#dec9417b8611e34e787a3e4c37686b5131f9e5c5 for pr-154210-2
[INFO] extracting crate swmr-cell 0.3.1 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate swmr-cell 0.3.1
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate swmr-cell 0.3.1
[INFO] tweaked toml for crates.io crate swmr-cell 0.3.1 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate swmr-cell 0.3.1 on toolchain dec9417b8611e34e787a3e4c37686b5131f9e5c5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate swmr-cell 0.3.1 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" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f147f39f353bf106a5022f3b776faae31a7f06c6034adcca65a6eb76404d778a
[INFO] running `Command { std: "docker" "start" "-a" "f147f39f353bf106a5022f3b776faae31a7f06c6034adcca65a6eb76404d778a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f147f39f353bf106a5022f3b776faae31a7f06c6034adcca65a6eb76404d778a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f147f39f353bf106a5022f3b776faae31a7f06c6034adcca65a6eb76404d778a", kill_on_drop: false }`
[INFO] [stdout] f147f39f353bf106a5022f3b776faae31a7f06c6034adcca65a6eb76404d778a
[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=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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f1b0cac668124df0ca8e9b2dc1ad49477040f4665a58a3f6f029c0f441bffd35
[INFO] running `Command { std: "docker" "start" "-a" "f1b0cac668124df0ca8e9b2dc1ad49477040f4665a58a3f6f029c0f441bffd35", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.177
[INFO] [stderr]    Compiling swmr-barrier v0.1.4
[INFO] [stderr]    Compiling swmr-cell v0.3.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.24s
[INFO] running `Command { std: "docker" "inspect" "f1b0cac668124df0ca8e9b2dc1ad49477040f4665a58a3f6f029c0f441bffd35", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f1b0cac668124df0ca8e9b2dc1ad49477040f4665a58a3f6f029c0f441bffd35", kill_on_drop: false }`
[INFO] [stdout] f1b0cac668124df0ca8e9b2dc1ad49477040f4665a58a3f6f029c0f441bffd35
[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=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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0d4f00a5c44dbd8ee18bf20cf7fe272d8dd7c059aebd0010ca1abebb05307662
[INFO] running `Command { std: "docker" "start" "-a" "0d4f00a5c44dbd8ee18bf20cf7fe272d8dd7c059aebd0010ca1abebb05307662", kill_on_drop: false }`
[INFO] [stderr]    Compiling swmr-cell v0.3.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.46s
[INFO] running `Command { std: "docker" "inspect" "0d4f00a5c44dbd8ee18bf20cf7fe272d8dd7c059aebd0010ca1abebb05307662", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0d4f00a5c44dbd8ee18bf20cf7fe272d8dd7c059aebd0010ca1abebb05307662", kill_on_drop: false }`
[INFO] [stdout] 0d4f00a5c44dbd8ee18bf20cf7fe272d8dd7c059aebd0010ca1abebb05307662
[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=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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 20d53b61237c4271239fac99a04c4066ae3f016746513b0bc06297a6ee89ec49
[INFO] running `Command { std: "docker" "start" "-a" "20d53b61237c4271239fac99a04c4066ae3f016746513b0bc06297a6ee89ec49", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/swmr_cell-6827b667ec06b163)
[INFO] [stdout] 
[INFO] [stdout] running 95 tests
[INFO] [stdout] test tests::basic_tests::test_create_swmr_cell_and_basic_usage ... ok
[INFO] [stdout] test tests::basic_tests::test_debug_trait_local_reader ... ok
[INFO] [stdout] test tests::basic_tests::test_debug_trait_pin_guard ... ok
[INFO] [stdout] test tests::basic_tests::test_debug_trait_swmr_cell ... ok
[INFO] [stdout] test tests::basic_tests::test_multiple_locals ... ok
[INFO] [stdout] test tests::basic_tests::test_multiple_swmr_instances ... ok
[INFO] [stdout] test tests::basic_tests::test_default_trait ... ok
[INFO] [stdout] test tests::basic_tests::test_nested_pins ... ok
[INFO] [stdout] test tests::basic_tests::test_from_trait ... ok
[INFO] [stdout] test tests::basic_tests::test_pin_guard_as_ref ... ok
[INFO] [stdout] test tests::basic_tests::test_local_reader_is_pinned ... ok
[INFO] [stdout] test tests::basic_tests::test_previous_none_initially ... ok
[INFO] [stdout] test tests::basic_tests::test_previous_survives_gc ... ok
[INFO] [stdout] test tests::basic_tests::test_swmr_with_string ... ok
[INFO] [stdout] test tests::basic_tests::test_swmr_with_struct ... ok
[INFO] [stdout] test tests::basic_tests::test_update_with_closure ... ok
[INFO] [stdout] test tests::basic_tests::test_writer_store ... ok
[INFO] [stdout] test tests::concurrent_tests::test_active_reader_protects_garbage ... ok
[INFO] [stdout] test tests::concurrent_tests::test_garbage_reclaimed_after_reader_drop ... ok
[INFO] [stdout] test tests::basic_tests::test_previous_after_store ... ok
[INFO] [stdout] test tests::basic_tests::test_pin_guard_version ... ok
[INFO] [stdout] test tests::basic_tests::test_previous_with_struct ... ok
[INFO] [stdout] test tests::concurrent_tests::test_garbage_collection_trigger ... ok
[INFO] [stdout] test tests::basic_tests::test_writer_collect ... ok
[INFO] [stdout] test tests::concurrent_tests::test_interleaved_read_write_operations ... ok
[INFO] [stdout] test tests::concurrent_tests::test_sequential_writer_operations ... ok
[INFO] [stdout] test tests::concurrent_tests::test_min_epoch_calculation_multiple_readers ... ok
[INFO] [stdout] test tests::basic_tests::test_local_reader_version ... ok
[INFO] [stdout] test tests::basic_tests::test_thread_safety ... ok
[INFO] [stdout] test tests::concurrent_tests::test_get_and_store_interleaving ... ok
[INFO] [stdout] test tests::concurrent_tests::test_readers_in_different_epochs ... ok
[INFO] [stdout] test tests::edge_case_tests::test_alternating_epoch_advancement ... ok
[INFO] [stdout] test tests::concurrent_tests::test_single_writer_multiple_readers_concurrent_reads ... ok
[INFO] [stdout] test tests::concurrent_tests::test_is_pinned_correctness_in_threads ... ok
[INFO] [stdout] test tests::basic_tests::test_swmr_drop ... ok
[INFO] [stdout] test tests::edge_case_tests::test_exceed_reclaim_threshold ... ok
[INFO] [stdout] test tests::edge_case_tests::test_empty_garbage_collection ... ok
[INFO] [stdout] test tests::concurrent_tests::test_reader_thread_exit_cleanup ... ok
[INFO] [stdout] test tests::basic_tests::test_get_returns_current_value ... ok
[INFO] [stdout] test tests::edge_case_tests::test_dynamic_reader_registration ... ok
[INFO] [stdout] test tests::basic_tests::test_reader_pin_drop_cycle ... ok
[INFO] [stdout] test tests::concurrent_tests::test_update_with_concurrent_readers ... ok
[INFO] [stdout] test tests::edge_case_tests::test_exactly_reach_reclaim_threshold ... ok
[INFO] [stdout] test tests::edge_case_tests::test_garbage_count_after_collect ... ok
[INFO] [stdout] test tests::edge_case_tests::test_garbage_protection_across_epochs ... ok
[INFO] [stdout] test tests::edge_case_tests::test_get_consistency_with_store ... ok
[INFO] [stdout] test tests::edge_case_tests::test_get_with_zst ... ok
[INFO] [stdout] test tests::edge_case_tests::test_is_pinned_with_nested_pins ... ok
[INFO] [stdout] test tests::edge_case_tests::test_large_data_structure ... ok
[INFO] [stdout] test tests::edge_case_tests::test_many_readers_epoch_management ... ok
[INFO] [stdout] test tests::edge_case_tests::test_multiple_store_operations ... ok
[INFO] [stdout] test tests::edge_case_tests::test_nested_structures ... ok
[INFO] [stdout] test tests::edge_case_tests::test_pin_guard_version_consistency ... ok
[INFO] [stdout] test tests::edge_case_tests::test_reader_handle_cleanup_on_drop ... ok
[INFO] [stdout] test tests::concurrent_tests::test_high_concurrency_reads ... ok
[INFO] [stdout] test tests::edge_case_tests::test_single_data_retire_and_reclaim ... ok
[INFO] [stdout] test tests::edge_case_tests::test_vector_type ... ok
[INFO] [stdout] test tests::edge_case_tests::test_update_triggers_version_increment ... ok
[INFO] [stdout] test tests::edge_case_tests::test_update_with_complex_transformation ... ok
[INFO] [stdout] test tests::edge_case_tests::test_stress_high_frequency_operations ... ok
[INFO] [stdout] test tests::lifecycle_tests::test_data_visibility_across_epochs ... ok
[INFO] [stdout] test tests::lifecycle_tests::test_default_trait_lifecycle ... ok
[INFO] [stdout] test tests::lifecycle_tests::test_epoch_advancement_correctness ... ok
[INFO] [stdout] test tests::lifecycle_tests::test_garbage_collection_memory_safety ... ok
[INFO] [stdout] test tests::lifecycle_tests::test_get_lifetime_bound_to_cell ... ok
[INFO] [stdout] test tests::lifecycle_tests::test_guard_lifetime_constraint ... ok
[INFO] [stdout] test tests::edge_case_tests::test_rapid_pin_unpin ... ok
[INFO] [stdout] test tests::lifecycle_tests::test_large_garbage_safe_reclamation ... ok
[INFO] [stdout] test tests::lifecycle_tests::test_multiple_guards_simultaneously_active ... ok
[INFO] [stdout] test tests::lifecycle_tests::test_multiple_readers_garbage_protection ... ok
[INFO] [stdout] test tests::lifecycle_tests::test_guard_nested_scopes ... ok
[INFO] [stdout] test tests::lifecycle_tests::test_pin_guard_version_preserved ... ok
[INFO] [stdout] test tests::lifecycle_tests::test_is_pinned_lifecycle_with_clone ... ok
[INFO] [stdout] test tests::lifecycle_tests::test_rapid_reader_switching ... ok
[INFO] [stdout] test tests::lifecycle_tests::test_multiple_swmr_independence ... ok
[INFO] [stdout] test tests::lifecycle_tests::test_reader_creation_safety ... ok
[INFO] [stdout] test tests::lifecycle_tests::test_swmr_drop_implementation ... ok
[INFO] [stdout] test tests::lifecycle_tests::test_reader_exit_cleanup ... ok
[INFO] [stdout] test tests::edge_case_tests::test_writer_cleanup_on_drop ... ok
[INFO] [stdout] test tests::lifecycle_tests::test_reader_isolation_across_threads ... ok
[INFO] [stdout] test tests::lifecycle_tests::test_update_preserves_previous ... ok
[INFO] [stdout] test tests::lifecycle_tests::test_version_consistency_lifecycle ... ok
[INFO] [stdout] test tests::edge_case_tests::test_readers_in_different_threads ... ok
[INFO] [stdout] test tests::edge_case_tests::test_zero_sized_type ... ok
[INFO] [stdout] test tests::lifecycle_tests::test_complex_type_lifetime_management ... ok
[INFO] [stdout] test tests::lifecycle_tests::test_writer_garbage_management ... ok
[INFO] [stdout] test tests::lifecycle_tests::test_writer_uniqueness ... ok
[INFO] [stdout] test tests::concurrent_tests::test_reader_holds_guard_during_updates ... ok
[INFO] [stdout] test tests::concurrent_tests::test_local_reader_version_tracks_global ... ok
[INFO] [stdout] test tests::concurrent_tests::test_version_consistency_across_threads ... ok
[INFO] [stdout] test tests::basic_tests::test_garbage_count_tracks_retired_objects ... ok
[INFO] [stdout] test tests::edge_case_tests::test_rapid_reader_creation_destruction ... ok
[INFO] [stdout] test tests::lifecycle_tests::test_complete_lifecycle_scenario ... ok
[INFO] [stdout] test tests::lifecycle_tests::test_concurrent_read_consistency ... ok
[INFO] [stdout] test tests::concurrent_tests::test_writer_updates_readers_observe ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 95 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.17s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]      Running tests/loom_tests.rs (/opt/rustwide/target/debug/deps/loom_tests-2f8ba96c90e9deb8)
[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] [stderr]    Doc-tests swmr_cell
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test src/lib.rs - LocalReader<T,RP>::is_pinned (line 575) ... ignored
[INFO] [stdout] test src/lib.rs - LocalReader<T,RP>::is_pinned (line 596) ... ignored
[INFO] [stdout] test src/lib.rs - (line 14) ... ok
[INFO] [stdout] test src/lib.rs - SwmrCell<T,RP>::previous (line 183) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 2 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stdout] all doctests ran in 1.08s; merged doctests compilation took 1.07s
[INFO] running `Command { std: "docker" "inspect" "20d53b61237c4271239fac99a04c4066ae3f016746513b0bc06297a6ee89ec49", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "20d53b61237c4271239fac99a04c4066ae3f016746513b0bc06297a6ee89ec49", kill_on_drop: false }`
[INFO] [stdout] 20d53b61237c4271239fac99a04c4066ae3f016746513b0bc06297a6ee89ec49