[INFO] fetching crate option-block 0.6.0...
[INFO] testing option-block-0.6.0 against try#c2e32f1c9652b13ed99608599c1e855462f421f3 for pr-146098-8
[INFO] extracting crate option-block 0.6.0 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate option-block 0.6.0
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate option-block 0.6.0
[INFO] tweaked toml for crates.io crate option-block 0.6.0 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate option-block 0.6.0 on toolchain c2e32f1c9652b13ed99608599c1e855462f421f3
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate option-block 0.6.0 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" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cfbbae4b055a0e06abc56b8bc9ce8e219d6b9d7b22068740f0bc38ea498827ca
[INFO] running `Command { std: "docker" "start" "-a" "cfbbae4b055a0e06abc56b8bc9ce8e219d6b9d7b22068740f0bc38ea498827ca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cfbbae4b055a0e06abc56b8bc9ce8e219d6b9d7b22068740f0bc38ea498827ca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cfbbae4b055a0e06abc56b8bc9ce8e219d6b9d7b22068740f0bc38ea498827ca", kill_on_drop: false }`
[INFO] [stdout] cfbbae4b055a0e06abc56b8bc9ce8e219d6b9d7b22068740f0bc38ea498827ca
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 85d559c079e91ee5d7edf7d9bbb517e56f0b64e3c8cbf6aa255b99792e9bb1cb
[INFO] running `Command { std: "docker" "start" "-a" "85d559c079e91ee5d7edf7d9bbb517e56f0b64e3c8cbf6aa255b99792e9bb1cb", kill_on_drop: false }`
[INFO] [stderr]    Compiling option-block v0.6.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.27s
[INFO] running `Command { std: "docker" "inspect" "85d559c079e91ee5d7edf7d9bbb517e56f0b64e3c8cbf6aa255b99792e9bb1cb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "85d559c079e91ee5d7edf7d9bbb517e56f0b64e3c8cbf6aa255b99792e9bb1cb", kill_on_drop: false }`
[INFO] [stdout] 85d559c079e91ee5d7edf7d9bbb517e56f0b64e3c8cbf6aa255b99792e9bb1cb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a8b0934eb61c31dc4f58205378256138ca401da7456eb2a8d7c0f2eaada9b6d5
[INFO] running `Command { std: "docker" "start" "-a" "a8b0934eb61c31dc4f58205378256138ca401da7456eb2a8d7c0f2eaada9b6d5", kill_on_drop: false }`
[INFO] [stderr]    Compiling option-block v0.6.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.22s
[INFO] running `Command { std: "docker" "inspect" "a8b0934eb61c31dc4f58205378256138ca401da7456eb2a8d7c0f2eaada9b6d5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a8b0934eb61c31dc4f58205378256138ca401da7456eb2a8d7c0f2eaada9b6d5", kill_on_drop: false }`
[INFO] [stdout] a8b0934eb61c31dc4f58205378256138ca401da7456eb2a8d7c0f2eaada9b6d5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 1557b7d7ee17fbaaad6c85092d80a596149973c2892e0455ec13585ad9d72948
[INFO] running `Command { std: "docker" "start" "-a" "1557b7d7ee17fbaaad6c85092d80a596149973c2892e0455ec13585ad9d72948", 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/option_block-a68621973a511eaa)
[INFO] [stdout] 
[INFO] [stderr]      Running tests/basic-tests.rs (/opt/rustwide/target/debug/deps/basic_tests-646117f2f16c5fbb)
[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 18 tests
[INFO] [stdout] test all_iterator_types_agree ... ok
[INFO] [stdout] test capacity_tests ... ok
[INFO] [stdout] test default_getters ... ok
[INFO] [stdout] test empty_block_mutable_iteration ... ok
[INFO] [stdout] test empty_block_iteration ... ok
[INFO] [stdout] test indexing_operations ... ok
[INFO] [stdout] test into_iter_consumes_block ... ok
[INFO] [stdout] test insert_replace_semantics ... ok
[INFO] [stdout] test iter_count_matches_length ... ok
[INFO] [stdout] test iterator_correctness_full_block ... ok
[INFO] [stdout] test mutable_iteration ... ok
[INFO] [stdout] test mutable_iteration_partial ... ok
[INFO] [stdout] test mutable_iterator_independence ... ok
[INFO] [stdout] test partial_into_iter_consumption ... ok
[INFO] [stdout] test size_tests ... ok
[INFO] [stdout] test sparse_block_iteration ... ok
[INFO] [stdout] test check_iterators ... ok
[INFO] [stdout] test sparse_block_mutable_iteration ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 18 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/first-last.rs (/opt/rustwide/target/debug/deps/first_last-c07681edec0f8616)
[INFO] [stdout] 
[INFO] [stdout] running 69 tests
[INFO] [stdout] test boundary_position_tests::element_only_at_last_boundary ... ok
[INFO] [stdout] test boundary_position_tests::element_only_at_first_boundary ... ok
[INFO] [stdout] test drop_safety_tests::last_does_not_drop_element ... ok
[INFO] [stdout] test drop_safety_tests::first_does_not_drop_element ... ok
[INFO] [stdout] test drop_safety_tests::multiple_first_last_accesses_no_double_drop ... ok
[INFO] [stdout] test drop_safety_tests::last_mut_does_not_cause_leaks ... ok
[INFO] [stdout] test drop_safety_tests::first_mut_does_not_cause_leaks ... ok
[INFO] [stdout] test empty_block_tests::first_mut_returns_none ... ok
[INFO] [stdout] test empty_block_tests::last_mut_returns_none ... ok
[INFO] [stdout] test empty_block_tests::highest_index_returns_none ... ok
[INFO] [stdout] test empty_block_tests::first_returns_none ... ok
[INFO] [stdout] test empty_block_tests::last_returns_none ... ok
[INFO] [stdout] test boundary_position_tests::elements_only_at_boundaries ... ok
[INFO] [stdout] test empty_block_tests::lowest_index_returns_none ... ok
[INFO] [stdout] test full_block_tests::all_same_value ... ok
[INFO] [stdout] test full_block_tests::first_and_last ... ok
[INFO] [stdout] test index_correctness_tests::highest_index_returns_correct_u32 ... ok
[INFO] [stdout] test index_correctness_tests::index_can_be_safely_cast_to_usize ... ok
[INFO] [stdout] test index_correctness_tests::index_values_are_within_capacity ... ok
[INFO] [stdout] test index_correctness_tests::lowest_and_highest_index_consistency ... ok
[INFO] [stdout] test index_correctness_tests::lowest_index_returns_correct_u32 ... ok
[INFO] [stdout] test insert_at_first_vacancy_tests::after_removal ... ok
[INFO] [stdout] test insert_at_first_vacancy_tests::empty_block ... ok
[INFO] [stdout] test insert_at_first_vacancy_tests::fills_gaps ... ok
[INFO] [stdout] test insert_at_first_vacancy_tests::full_block ... ok
[INFO] [stdout] test insert_at_first_vacancy_tests::replace_existing ... ok
[INFO] [stdout] test insert_at_first_vacancy_tests::sequential ... ok
[INFO] [stdout] test insert_at_first_vacancy_tests::sparse_block ... ok
[INFO] [stdout] test insert_at_last_vacancy_tests::after_removal ... ok
[INFO] [stdout] test insert_at_last_vacancy_tests::empty_block ... ok
[INFO] [stdout] test insert_at_last_vacancy_tests::fills_gaps_from_end ... ok
[INFO] [stdout] test insert_at_last_vacancy_tests::full_block ... ok
[INFO] [stdout] test insert_at_last_vacancy_tests::first_and_last_vacancy_meet_in_middle ... ok
[INFO] [stdout] test insert_at_last_vacancy_tests::sequential ... ok
[INFO] [stdout] test insert_at_last_vacancy_tests::sparse_block ... ok
[INFO] [stdout] test mutation_tests::alternating_first_and_last_mut ... ok
[INFO] [stdout] test mutation_tests::first_mut_modifies_first_element ... ok
[INFO] [stdout] test mutation_tests::first_mut_on_single_element ... ok
[INFO] [stdout] test mutation_tests::last_mut_modifies_last_element ... ok
[INFO] [stdout] test post_removal_tests::after_removing_all_but_one ... ok
[INFO] [stdout] test post_removal_tests::after_removing_all_elements ... ok
[INFO] [stdout] test mutation_tests::last_mut_on_single_element ... ok
[INFO] [stdout] test post_removal_tests::after_removing_first_element ... ok
[INFO] [stdout] test post_removal_tests::sequential_removal_from_back ... ok
[INFO] [stdout] test single_element_tests::at_last_index ... ok
[INFO] [stdout] test single_element_tests::at_index_zero ... ok
[INFO] [stdout] test sparse_block_tests::alternating_pattern ... ok
[INFO] [stdout] test sparse_block_tests::clustered_at_end ... ok
[INFO] [stdout] test post_removal_tests::sequential_removal_from_front ... ok
[INFO] [stdout] test vacant_index_tests::empty_block_vacant_indices ... ok
[INFO] [stdout] test vacant_index_tests::single_element_vacant_indices ... ok
[INFO] [stdout] test vacant_index_tests::single_vacancy_at_end ... ok
[INFO] [stdout] test vacant_index_tests::single_vacancy_at_start ... ok
[INFO] [stdout] test vacant_index_tests::single_vacancy_in_middle ... ok
[INFO] [stdout] test sparse_block_tests::clustered_at_start ... ok
[INFO] [stdout] test vacant_index_tests::sparse_block_vacant_indices ... ok
[INFO] [stdout] test vacant_index_tests::vacancy_at_boundaries ... ok
[INFO] [stdout] test vacant_index_tests::vacancy_tracking_after_removal ... ok
[INFO] [stdout] test single_element_tests::at_middle_index ... ok
[INFO] [stdout] test single_element_tests::first_and_last_are_same_reference ... ok
[INFO] [stdout] test sparse_block_tests::with_gaps ... ok
[INFO] [stdout] test vacant_index_tests::full_block_no_vacancies ... ok
[INFO] [stdout] test vacant_insert_drop_safety_tests::insert_at_first_vacancy_no_leak_on_err ... ok
[INFO] [stdout] test vacant_insert_drop_safety_tests::insert_at_first_vacancy_proper_ownership ... ok
[INFO] [stdout] test vacant_insert_drop_safety_tests::insert_at_last_vacancy_no_leak_on_err ... ok
[INFO] [stdout] test vacant_insert_drop_safety_tests::insert_at_last_vacancy_proper_ownership ... ok
[INFO] [stdout] test vacant_insert_drop_safety_tests::vacant_insert_replaces_correctly ... ok
[INFO] [stdout] test post_removal_tests::after_removing_middle_elements ... ok
[INFO] [stdout] test post_removal_tests::after_removing_last_element ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 69 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.07s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/has-drop-impl.rs (/opt/rustwide/target/debug/deps/has_drop_impl-3cdfe91135197b4f)
[INFO] [stdout] 
[INFO] [stdout] running 14 tests
[INFO] [stdout] test block_of_optional_strings ... ok
[INFO] [stdout] test empty_into_iter_no_drops ... ok
[INFO] [stdout] test ensure_zero_resource_leaks ... ok
[INFO] [stdout] test default_getters ... ok
[INFO] [stdout] test iter_mut_does_not_clone ... ok
[INFO] [stdout] test insert_strings_twice ... ok
[INFO] [stdout] test iter_mut_modifications_preserved ... ok
[INFO] [stdout] test large_block_iteration_no_leaks ... ok
[INFO] [stdout] test partial_into_iter_drops_remaining ... ok
[INFO] [stdout] test into_iter_transfers_ownership ... ok
[INFO] [stdout] test sparse_into_iter_no_leaks ... ok
[INFO] [stdout] test into_iter_with_manually_drop_correctness ... ok
[INFO] [stdout] test iter_does_not_clone ... ok
[INFO] [stdout] test partial_cloning ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 14 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.15s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/iterator-correctness.rs (/opt/rustwide/target/debug/deps/iterator_correctness-c2c928049e1fb5df)
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test all_iterator_types_agree ... ok
[INFO] [stdout] test mutable_iter_collect_and_verify ... ok
[INFO] [stdout] test iterator_chaining ... ok
[INFO] [stdout] test partial_into_iter_with_vec ... ok
[INFO] [stdout] test sparse_block_iteration ... ok
[INFO] [stdout] test into_iter_consumes_block ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests option_block
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test src/../README.md - (line 13) ... ok
[INFO] [stdout] test src/../README.md - (line 57) ... ok
[INFO] [stdout] test src/lib.rs - iter (line 12) ... ok
[INFO] [stdout] test src/../README.md - (line 71) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stdout] all doctests ran in 0.50s; merged doctests compilation took 0.48s
[INFO] running `Command { std: "docker" "inspect" "1557b7d7ee17fbaaad6c85092d80a596149973c2892e0455ec13585ad9d72948", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1557b7d7ee17fbaaad6c85092d80a596149973c2892e0455ec13585ad9d72948", kill_on_drop: false }`
[INFO] [stdout] 1557b7d7ee17fbaaad6c85092d80a596149973c2892e0455ec13585ad9d72948