[INFO] fetching crate id_tree 1.8.0...
[INFO] testing id_tree-1.8.0 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate id_tree 1.8.0 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate id_tree 1.8.0 on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate id_tree 1.8.0
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate id_tree 1.8.0
[INFO] tweaked toml for crates.io crate id_tree 1.8.0 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate crates.io crate id_tree 1.8.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "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] f7c2a16fb7d705ac3244ab2857f6777b4eb0731ce0e2cdc7f009bc818c197698
[INFO] running `Command { std: "docker" "start" "-a" "f7c2a16fb7d705ac3244ab2857f6777b4eb0731ce0e2cdc7f009bc818c197698", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f7c2a16fb7d705ac3244ab2857f6777b4eb0731ce0e2cdc7f009bc818c197698", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f7c2a16fb7d705ac3244ab2857f6777b4eb0731ce0e2cdc7f009bc818c197698", kill_on_drop: false }`
[INFO] [stdout] f7c2a16fb7d705ac3244ab2857f6777b4eb0731ce0e2cdc7f009bc818c197698
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "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] 1962119c014703b281ec3444c290386ec598ba5eaf05ab0d3cdfd1887c2a84fa
[INFO] running `Command { std: "docker" "start" "-a" "1962119c014703b281ec3444c290386ec598ba5eaf05ab0d3cdfd1887c2a84fa", kill_on_drop: false }`
[INFO] [stderr]    Compiling snowflake v1.3.0
[INFO] [stderr]    Compiling id_tree v1.8.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.22s
[INFO] running `Command { std: "docker" "inspect" "1962119c014703b281ec3444c290386ec598ba5eaf05ab0d3cdfd1887c2a84fa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1962119c014703b281ec3444c290386ec598ba5eaf05ab0d3cdfd1887c2a84fa", kill_on_drop: false }`
[INFO] [stdout] 1962119c014703b281ec3444c290386ec598ba5eaf05ab0d3cdfd1887c2a84fa
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ac538be4a836cfe141f8b1f7b31d582255926f323f4135020069bd5a213a1146
[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" "ac538be4a836cfe141f8b1f7b31d582255926f323f4135020069bd5a213a1146", kill_on_drop: false }`
[INFO] [stderr]    Compiling id_tree v1.8.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 4.51s
[INFO] running `Command { std: "docker" "inspect" "ac538be4a836cfe141f8b1f7b31d582255926f323f4135020069bd5a213a1146", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ac538be4a836cfe141f8b1f7b31d582255926f323f4135020069bd5a213a1146", kill_on_drop: false }`
[INFO] [stdout] ac538be4a836cfe141f8b1f7b31d582255926f323f4135020069bd5a213a1146
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 6c73dd9e1c477e00320e740923fd9007f94926bf33ded6779f28d5757cb7e5b0
[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" "6c73dd9e1c477e00320e740923fd9007f94926bf33ded6779f28d5757cb7e5b0", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/id_tree-685cbb2287beb57f)
[INFO] [stdout] running 52 tests
[INFO] [stdout] test iterators::tests::test_ancestor_ids ... ok
[INFO] [stdout] test iterators::tests::test_ancestor_ids_clone ... ok
[INFO] [stdout] test iterators::tests::test_children ... ok
[INFO] [stdout] test iterators::tests::test_children_ids ... ok
[INFO] [stdout] test iterators::tests::test_level_order_traversal ... ok
[INFO] [stdout] test iterators::tests::test_level_order_traversal_clone ... ok
[INFO] [stdout] test iterators::tests::test_children_ids_clone ... ok
[INFO] [stdout] test iterators::tests::test_level_order_traversal_ids_clone ... ok
[INFO] [stdout] test iterators::tests::test_post_order_traversal_clone ... ok
[INFO] [stdout] test iterators::tests::test_post_order_traversal_ids_clone ... ok
[INFO] [stdout] test iterators::tests::test_level_order_traversal_ids ... ok
[INFO] [stdout] test iterators::tests::test_pre_order_traversal ... ok
[INFO] [stdout] test iterators::tests::test_ancestors_clone ... ok
[INFO] [stdout] test iterators::tests::test_post_order_traversal ... ok
[INFO] [stdout] test iterators::tests::test_post_order_traversal_ids ... ok
[INFO] [stdout] test iterators::tests::test_children_clone ... ok
[INFO] [stdout] test iterators::tests::test_ancestors ... ok
[INFO] [stdout] test node::node_tests::test_data ... ok
[INFO] [stdout] test node::node_tests::test_parent ... ok
[INFO] [stdout] test tree::tree_builder_tests::test_build ... ok
[INFO] [stdout] test tree::tree_builder_tests::test_with_all_settings ... ok
[INFO] [stdout] test tree::tree_builder_tests::test_with_node_capacity ... ok
[INFO] [stdout] test node::node_tests::test_partial_eq ... ok
[INFO] [stdout] test tree::tree_builder_tests::test_new ... ok
[INFO] [stdout] test tree::tree_tests::test_clone ... ok
[INFO] [stdout] test tree::tree_builder_tests::test_with_swap_capacity ... ok
[INFO] [stdout] test node::node_builder_tests::test_new ... ok
[INFO] [stdout] test node::node_tests::test_data_mut ... ok
[INFO] [stdout] test iterators::tests::test_pre_order_traversal_clone ... ok
[INFO] [stdout] test iterators::tests::test_pre_order_traversal_ids_clone ... ok
[INFO] [stdout] test node::node_builder_tests::test_with_child_capacity ... ok
[INFO] [stdout] test node::node_tests::test_new ... ok
[INFO] [stdout] test iterators::tests::test_pre_order_traversal_ids ... ok
[INFO] [stdout] test tree::tree_tests::test_get_mut ... ok
[INFO] [stdout] test tree::tree_tests::test_move_node_to_root ... ok
[INFO] [stdout] test tree::tree_tests::test_new ... ok
[INFO] [stdout] test tree::tree_tests::test_remove_node_lift_children ... ok
[INFO] [stdout] test tree::tree_tests::test_remove_node_orphan_children ... ok
[INFO] [stdout] test tree::tree_tests::test_root_node_id ... ok
[INFO] [stdout] test tree::tree_tests::test_swap_nodes_children_only ... ok
[INFO] [stdout] test tree::tree_tests::test_swap_nodes_leave_children ... ok
[INFO] [stdout] test tree::tree_tests::test_swap_nodes_take_children ... ok
[INFO] [stdout] test tree::tree_tests::test_tree_height ... ok
[INFO] [stdout] test node::node_tests::test_children ... ok
[INFO] [stdout] test tree::tree_tests::test_remove_root ... ok
[INFO] [stdout] test tree::tree_tests::test_insert_with_parent ... ok
[INFO] [stdout] test tree::tree_tests::test_get ... ok
[INFO] [stdout] test tree::tree_tests::test_set_root ... ok
[INFO] [stdout] test tree::tree_tests::test_move_node_to_parent ... ok
[INFO] [stdout] test tree::tree_builder_tests::test_with_root ... ok
[INFO] [stdout] test tree::tree_tests::test_partial_eq ... ok
[INFO] [stderr]      Running tests/error_tests.rs (/opt/rustwide/target/debug/deps/error_tests-a4d01c3894d2c8de)
[INFO] [stdout] test tree::tree_tests::test_find_subtree_root_below_upper_id ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 52 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 21 tests
[INFO] [stdout] test test_get_node_from_other_tree ... ok
[INFO] [stdout] test test_move_node_from_other_tree ... ok
[INFO] [stdout] test test_remove_node_orphan_children_from_other_tree ... ok
[INFO] [stdout] test test_remove_node_remove_children_from_other_tree ... ok
[INFO] [stdout] test test_sort_by_data_invalid_id ... ok
[INFO] [stdout] test test_sort_by_invalid_id ... ok
[INFO] [stdout] test test_remove_node_lift_children_from_other_tree ... ok
[INFO] [stdout] test test_old_node_id ... ok
[INFO] [stdout] test test_move_node_to_root_by_invalid_id ... ok
[INFO] [stdout] test test_sort_by_key_invalid_id ... ok
[INFO] [stdout] test test_swap_sub_trees_of_different_trees ... ok
[INFO] [stdout] test test_ancestors_old_id ... ok
[INFO] [stdout] test test_get_mut_node_from_other_tree ... ok
[INFO] [stdout] test test_children_old_id ... ok
[INFO] [stdout] test test_children_different_trees ... ok
[INFO] [stdout] test test_children_ids_old_id ... ok
[INFO] [stdout] test test_ancestors_different_trees ... ok
[INFO] [stdout] test test_ancestor_ids_different_trees ... ok
[INFO] [stdout] test test_move_node_into_other_tree ... ok
[INFO] [stderr]    Doc-tests id_tree
[INFO] [stdout] test test_ancestor_ids_old_id ... ok
[INFO] [stdout] test test_children_ids_different_trees ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 21 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 52 tests
[INFO] [stdout] test src/node.rs - node::Node<T>::parent (line 169) ... ok
[INFO] [stdout] test src/node.rs - node::Node<T>::data (line 112) ... ok
[INFO] [stdout] test src/behaviors.rs - behaviors::InsertBehavior::AsRoot (line 164) ... ok
[INFO] [stdout] test src/node.rs - node::Node<T>::new (line 99) ... ok
[INFO] [stdout] test src/node.rs - node::Node<T>::data_mut (line 128) ... ok
[INFO] [stdout] test src/node.rs - node::Node<T>::children (line 187) ... ok
[INFO] [stdout] test src/behaviors.rs - behaviors::InsertBehavior::UnderNode (line 180) ... ok
[INFO] [stdout] test src/behaviors.rs - behaviors::SwapBehavior::ChildrenOnly (line 271) ... ok
[INFO] [stdout] test src/behaviors.rs - behaviors::RemoveBehavior::OrphanChildren (line 69) ... ok
[INFO] [stdout] test src/behaviors.rs - behaviors::MoveBehavior::ToRoot (line 102) ... ok
[INFO] [stdout] test src/lib.rs - (line 18) ... ok
[INFO] [stdout] test src/behaviors.rs - behaviors::MoveBehavior::ToParent (line 133) ... ok
[INFO] [stdout] test src/behaviors.rs - behaviors::RemoveBehavior::LiftChildren (line 43) ... ok
[INFO] [stdout] test src/behaviors.rs - behaviors::SwapBehavior::LeaveChildren (line 238) ... ok
[INFO] [stdout] test src/node.rs - node::NodeBuilder<T>::new (line 15) ... ok
[INFO] [stdout] test src/behaviors.rs - behaviors::RemoveBehavior::DropChildren (line 15) ... ok
[INFO] [stdout] test src/node.rs - node::NodeBuilder<T>::with_child_capacity (line 40) ... ok
[INFO] [stdout] test src/behaviors.rs - behaviors::SwapBehavior::TakeChildren (line 209) ... ok
[INFO] [stdout] test src/node.rs - node::Node<T>::replace_data (line 146) ... ok
[INFO] [stdout] test src/node.rs - node::NodeBuilder<T>::build (line 54) ... ok
[INFO] [stdout] test src/tree.rs - tree::Tree<T>::ancestor_ids (line 1269) ... ok
[INFO] [stdout] test src/tree.rs - tree::Tree<T>::ancestors (line 1240) ... ok
[INFO] [stdout] test src/tree.rs - tree::Tree<T>::root_node_id (line 1220) ... ok
[INFO] [stdout] test src/tree.rs - tree::Tree<T>::children (line 1300) ... ok
[INFO] [stdout] test src/tree.rs - tree::Tree<T>::height (line 189) ... ok
[INFO] [stdout] test src/tree.rs - tree::Tree<T>::move_node (line 433) ... ok
[INFO] [stdout] test src/tree.rs - tree::Tree<T>::children_ids (line 1330) ... ok
[INFO] [stdout] test src/tree.rs - tree::Tree<T>::get_mut (line 315) ... ok
[INFO] [stdout] test src/tree.rs - tree::Tree<T>::get (line 289) ... ok
[INFO] [stdout] test src/tree.rs - tree::Tree<T>::new (line 169) ... ok
[INFO] [stdout] test src/tree.rs - tree::Tree<T>::insert (line 225) ... ok
[INFO] [stdout] test src/tree.rs - tree::Tree<T>::make_first_sibling (line 776) ... ok
[INFO] [stdout] test src/tree.rs - tree::Tree<T>::remove_node (line 351) ... ok
[INFO] [stdout] test src/tree.rs - tree::Tree<T>::make_last_sibling (line 830) ... ok
[INFO] [stdout] test src/tree.rs - tree::Tree<T>::make_nth_sibling (line 704) ... ok
[INFO] [stdout] test src/tree.rs - tree::Tree<T>::traverse_pre_order (line 1360) ... ok
[INFO] [stdout] test src/tree.rs - tree::Tree<T>::sort_children_by (line 564) ... ok
[INFO] [stdout] test src/tree.rs - tree::Tree<T>::traverse_pre_order_ids (line 1394) ... ok
[INFO] [stdout] test src/tree.rs - tree::Tree<T>::traverse_post_order_ids (line 1462) ... ok
[INFO] [stdout] test src/tree.rs - tree::TreeBuilder<T>::with_root (line 36) ... ok
[INFO] [stdout] test src/tree.rs - tree::TreeBuilder<T>::new (line 19) ... ok
[INFO] [stdout] test src/tree.rs - tree::Tree<T>::swap_nodes (line 888) ... ok
[INFO] [stdout] test src/tree.rs - tree::TreeBuilder<T>::build (line 109) ... ok
[INFO] [stdout] test src/tree.rs - tree::TreeBuilder<T>::with_swap_capacity (line 95) ... ok
[INFO] [stdout] test src/tree.rs - tree::Tree<T>::sort_children_by_key (line 657) ... ok
[INFO] [stdout] test src/tree.rs - tree::Tree<T>::traverse_post_order (line 1428) ... ok
[INFO] [stdout] test src/tree.rs - tree::Tree<T>::traverse_level_order (line 1496) ... ok
[INFO] [stdout] test src/tree.rs - tree::TreeBuilder<T>::with_node_capacity (line 58) ... ok
[INFO] [stdout] test src/tree.rs - tree::Tree<T>::traverse_level_order_ids (line 1530) ... ok
[INFO] [stdout] test src/tree.rs - tree::Tree<T>::sort_children_by_data (line 612) ... ok
[INFO] [stdout] test src/tree.rs - tree::Tree<T>::write_formatted (line 1826) ... ok
[INFO] [stdout] test src/tree.rs - tree::Tree<T>::write_formatted (line 1804) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 52 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 15.50s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "6c73dd9e1c477e00320e740923fd9007f94926bf33ded6779f28d5757cb7e5b0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6c73dd9e1c477e00320e740923fd9007f94926bf33ded6779f28d5757cb7e5b0", kill_on_drop: false }`
[INFO] [stdout] 6c73dd9e1c477e00320e740923fd9007f94926bf33ded6779f28d5757cb7e5b0