[INFO] fetching crate spool 0.1.3...
[INFO] testing spool-0.1.3 against beta-2021-01-01 for beta-1.50-1
[INFO] extracting crate spool 0.1.3 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate spool 0.1.3 on toolchain beta-2021-01-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate spool 0.1.3
[INFO] finished tweaking crates.io crate spool 0.1.3
[INFO] tweaked toml for crates.io crate spool 0.1.3 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "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] 03095fe2a7ee3a5fdd85c63b0d0abd41c4b72785b763bf91abca772078f6cdc5
[INFO] running `Command { std: "docker" "start" "-a" "03095fe2a7ee3a5fdd85c63b0d0abd41c4b72785b763bf91abca772078f6cdc5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "03095fe2a7ee3a5fdd85c63b0d0abd41c4b72785b763bf91abca772078f6cdc5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "03095fe2a7ee3a5fdd85c63b0d0abd41c4b72785b763bf91abca772078f6cdc5", kill_on_drop: false }`
[INFO] [stdout] 03095fe2a7ee3a5fdd85c63b0d0abd41c4b72785b763bf91abca772078f6cdc5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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=warn" "-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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "build" "--frozen" "--message-format=json", 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] 3cbfb8a1e3a5c12fe09211b32d2e3b1dfb7b213fe6b43a297652801f070de37e
[INFO] running `Command { std: "docker" "start" "-a" "3cbfb8a1e3a5c12fe09211b32d2e3b1dfb7b213fe6b43a297652801f070de37e", kill_on_drop: false }`
[INFO] [stderr]    Compiling spool v0.1.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.50s
[INFO] running `Command { std: "docker" "inspect" "3cbfb8a1e3a5c12fe09211b32d2e3b1dfb7b213fe6b43a297652801f070de37e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3cbfb8a1e3a5c12fe09211b32d2e3b1dfb7b213fe6b43a297652801f070de37e", kill_on_drop: false }`
[INFO] [stdout] 3cbfb8a1e3a5c12fe09211b32d2e3b1dfb7b213fe6b43a297652801f070de37e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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=warn" "-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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] feed7e12c8e519d4e686f09a9d758545a596acbc8a59045582365a212f6c0844
[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" "feed7e12c8e519d4e686f09a9d758545a596acbc8a59045582365a212f6c0844", kill_on_drop: false }`
[INFO] [stderr]    Compiling spool v0.1.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.65s
[INFO] running `Command { std: "docker" "inspect" "feed7e12c8e519d4e686f09a9d758545a596acbc8a59045582365a212f6c0844", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "feed7e12c8e519d4e686f09a9d758545a596acbc8a59045582365a212f6c0844", kill_on_drop: false }`
[INFO] [stdout] feed7e12c8e519d4e686f09a9d758545a596acbc8a59045582365a212f6c0844
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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=warn" "-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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen", 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] a9d4663c7b62ada105d7d21c1ec4330fffcf2aea7952d87ee6f44ab08fb36d1c
[INFO] running `Command { std: "docker" "start" "-a" "a9d4663c7b62ada105d7d21c1ec4330fffcf2aea7952d87ee6f44ab08fb36d1c", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/spool-c2a36403de1e3354
[INFO] [stdout] 
[INFO] [stdout] running 34 tests
[INFO] [stdout] test pool::tests::object_pool::clear::replaces_all_items_with_none_and_clears_free_queue_and_resets_next ... ok
[INFO] [stdout] test pool::tests::object_pool::delete::returns_none_if_generation_mismatch ... ok
[INFO] [stdout] test pool::tests::object_pool::get::returns_none_if_data_is_none ... ok
[INFO] [stdout] test pool::tests::object_pool::get::returns_some_reference_to_entry_specified ... ok
[INFO] [stdout] test pool::tests::object_pool::get_mut::returns_none_if_generation_mismatch ... ok
[INFO] [stdout] test pool::tests::object_pool::get_mut::returns_none_if_key_has_invalid_index ... ok
[INFO] [stdout] test pool::tests::object_pool::get_mut::returns_some_reference_to_entry_specified ... ok
[INFO] [stdout] test pool::tests::object_pool::insert::correctly_updates_pool_state ... ok
[INFO] [stdout] test pool::tests::object_pool::insert::returns_valid_key_pointing_to_expected_data ... ok
[INFO] [stdout] test pool::tests::object_pool::new::correctly_initializes_a_pool ... ok
[INFO] [stdout] test pool::tests::object_pool::take::replaces_item_with_none_and_pushes_index_to_free ... ok
[INFO] [stdout] test pool::tests::object_pool::iter_mut::returns_an_iterator_to_all_contained_elements ... ok
[INFO] [stdout] test pool::tests::object_pool::take::returns_none_if_data_is_none ... ok
[INFO] [stdout] test pool::tests::object_pool::take::returns_none_if_generation_mismatch ... ok
[INFO] [stdout] test pool::tests::object_pool::take::returns_none_if_key_has_invalid_index ... ok
[INFO] [stdout] test pool::tests::pool_item::clear::sets_contents_to_none_without_advancing_generation ... ok
[INFO] [stdout] test pool::tests::pool_item::default::default_makes_sense ... ok
[INFO] [stdout] test pool::tests::pool_item::get::returns_none_if_empty ... ok
[INFO] [stdout] test pool::tests::object_pool::get::returns_none_if_key_has_invalid_index ... ok
[INFO] [stdout] test pool::tests::object_pool::delete::does_nothing_if_key_has_invalid_index ... ok
[INFO] [stdout] test pool::tests::pool_item::get::returns_some_if_not_empty ... ok
[INFO] [stdout] test pool::tests::object_pool::delete::replaces_item_with_none_and_pushes_index_to_free ... ok
[INFO] [stdout] test pool::tests::object_pool::get::returns_none_if_generation_mismatch ... ok
[INFO] [stdout] test pool::tests::pool_item::get_mut::returns_none_if_empty ... ok
[INFO] [stdout] test pool::tests::object_pool::get_mut::returns_none_if_data_is_none ... ok
[INFO] [stdout] test pool::tests::pool_item::get_mut::returns_some_if_not_empty ... ok
[INFO] [stdout] test pool::tests::object_pool::iter::returns_an_iterator_correctly_skipping_none_elements ... ok
[INFO] [stdout] test pool::tests::object_pool::iter::returns_an_empty_iterator_from_empty_pool ... ok
[INFO] [stdout] test pool::tests::object_pool::iter::returns_an_iterator_to_all_contained_elements ... ok
[INFO] [stdout] test pool::tests::object_pool::iter_mut::returns_an_iterator_correctly_skipping_none_elements ... ok
[INFO] [stdout] test pool::tests::object_pool::iter_mut::returns_an_empty_iterator_from_empty_pool ... ok
[INFO] [stdout] test pool::tests::pool_item::set::increments_generation ... ok
[INFO] [stdout] test pool::tests::object_pool::delete::returns_none_if_data_is_none ... ok
[INFO] [stderr]    Doc-tests spool
[INFO] [stdout] test pool::tests::object_pool::insert::should_panic_if_full ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 34 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.05s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 9 tests
[INFO] [stdout] test src/pool.rs - pool::ObjectPool<T>::capacity (line 169) ... ok
[INFO] [stdout] test src/pool.rs - pool::ObjectPool (line 90) ... ok
[INFO] [stdout] test src/pool.rs - pool::ObjectPool<T>::insert (line 189) ... ok
[INFO] [stdout] test src/pool.rs - pool::ObjectPool<T>::new (line 143) ... ok
[INFO] [stdout] test src/pool.rs - pool::ObjectPool<T>::delete (line 326) ... ok
[INFO] [stdout] test src/pool.rs - pool::ObjectPool<T>::clear (line 356) ... ok
[INFO] [stdout] test src/pool.rs - pool::ObjectPool<T>::take (line 292) ... ok
[INFO] [stdout] test src/pool.rs - pool::ObjectPool<T>::get (line 232) ... ok
[INFO] [stdout] test src/pool.rs - pool::ObjectPool<T>::get_mut (line 261) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 9 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.89s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "a9d4663c7b62ada105d7d21c1ec4330fffcf2aea7952d87ee6f44ab08fb36d1c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a9d4663c7b62ada105d7d21c1ec4330fffcf2aea7952d87ee6f44ab08fb36d1c", kill_on_drop: false }`
[INFO] [stdout] a9d4663c7b62ada105d7d21c1ec4330fffcf2aea7952d87ee6f44ab08fb36d1c