[INFO] cloning repository https://github.com/KentBeck/BPlusTree2
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/KentBeck/BPlusTree2" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKentBeck%2FBPlusTree2", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKentBeck%2FBPlusTree2'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] db7dc064e605e9917d8f875d658aeb9c7a4415b3
[INFO] testing KentBeck/BPlusTree2 against try#a7ee93192a766fb0dafa23def7154fc03cfcfc3e for pr-146989
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKentBeck%2FBPlusTree2" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/KentBeck/BPlusTree2
[INFO] finished tweaking git repo https://github.com/KentBeck/BPlusTree2
[INFO] tweaked toml for git repo https://github.com/KentBeck/BPlusTree2 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/KentBeck/BPlusTree2 on toolchain a7ee93192a766fb0dafa23def7154fc03cfcfc3e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a7ee93192a766fb0dafa23def7154fc03cfcfc3e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/KentBeck/BPlusTree2 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" "+a7ee93192a766fb0dafa23def7154fc03cfcfc3e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[INFO] testing KentBeck/BPlusTree2 against try#a7ee93192a766fb0dafa23def7154fc03cfcfc3e for pr-146989
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKentBeck%2FBPlusTree2" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/KentBeck/BPlusTree2
[INFO] finished tweaking git repo https://github.com/KentBeck/BPlusTree2
[INFO] tweaked toml for git repo https://github.com/KentBeck/BPlusTree2 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/KentBeck/BPlusTree2 on toolchain a7ee93192a766fb0dafa23def7154fc03cfcfc3e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a7ee93192a766fb0dafa23def7154fc03cfcfc3e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/KentBeck/BPlusTree2 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" "+a7ee93192a766fb0dafa23def7154fc03cfcfc3e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+a7ee93192a766fb0dafa23def7154fc03cfcfc3e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7a4e7d44866fec76ab96773155ffbe242ffb0625ef1b93da1cc6267e7b779aca
[INFO] running `Command { std: "docker" "start" "-a" "7a4e7d44866fec76ab96773155ffbe242ffb0625ef1b93da1cc6267e7b779aca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7a4e7d44866fec76ab96773155ffbe242ffb0625ef1b93da1cc6267e7b779aca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7a4e7d44866fec76ab96773155ffbe242ffb0625ef1b93da1cc6267e7b779aca", kill_on_drop: false }`
[INFO] [stdout] 7a4e7d44866fec76ab96773155ffbe242ffb0625ef1b93da1cc6267e7b779aca
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+a7ee93192a766fb0dafa23def7154fc03cfcfc3e" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c6a543aa8e91f927a641ea2118e08305edd67aab2d7ce473fe98f2f42bb4fdcc
[INFO] running `Command { std: "docker" "start" "-a" "c6a543aa8e91f927a641ea2118e08305edd67aab2d7ce473fe98f2f42bb4fdcc", kill_on_drop: false }`
[INFO] [stderr]    Compiling bplus_tree2 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.15s
[INFO] running `Command { std: "docker" "inspect" "c6a543aa8e91f927a641ea2118e08305edd67aab2d7ce473fe98f2f42bb4fdcc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c6a543aa8e91f927a641ea2118e08305edd67aab2d7ce473fe98f2f42bb4fdcc", kill_on_drop: false }`
[INFO] [stdout] c6a543aa8e91f927a641ea2118e08305edd67aab2d7ce473fe98f2f42bb4fdcc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+a7ee93192a766fb0dafa23def7154fc03cfcfc3e" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5a2b188dfdf87f54fac08ebee9f77a4396f63d85cca1584b00d4c6c57dd89cc0
[INFO] running `Command { std: "docker" "start" "-a" "5a2b188dfdf87f54fac08ebee9f77a4396f63d85cca1584b00d4c6c57dd89cc0", kill_on_drop: false }`
[INFO] [stderr]    Compiling bplus_tree2 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.45s
[INFO] running `Command { std: "docker" "inspect" "5a2b188dfdf87f54fac08ebee9f77a4396f63d85cca1584b00d4c6c57dd89cc0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5a2b188dfdf87f54fac08ebee9f77a4396f63d85cca1584b00d4c6c57dd89cc0", kill_on_drop: false }`
[INFO] [stdout] 5a2b188dfdf87f54fac08ebee9f77a4396f63d85cca1584b00d4c6c57dd89cc0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+a7ee93192a766fb0dafa23def7154fc03cfcfc3e" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 0a380785e61742ebfe7319a73246c1f30a0908a79cc97c29291bf96d27e1a6b8
[INFO] running `Command { std: "docker" "start" "-a" "0a380785e61742ebfe7319a73246c1f30a0908a79cc97c29291bf96d27e1a6b8", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/bplus_tree2-dd4d7a4e5540d68f)
[INFO] [stdout] 
[INFO] [stdout] running 47 tests
[INFO] [stdout] test tests::node_balancer_tests::node_balancer_tests::test_insertion_balancer_branch_node ... ok
[INFO] [stdout] test tests::node_balancer_tests::node_balancer_tests::test_insertion_balancer_leaf_node ... ok
[INFO] [stdout] test tests::node_balancer_tests::node_balancer_tests::test_insertion_balancer_no_split_needed ... ok
[INFO] [stdout] test tests::node_balancer_tests::node_balancer_tests::test_removal_balancer_no_change_needed ... ok
[INFO] [stdout] test tests::node_balancing_integration_tests::node_balancing_integration_tests::test_insertion_with_node_balancing ... ok
[INFO] [stdout] test tests::node_balancer_tests::node_balancer_tests::test_removal_balancer_merge_needed ... ok
[INFO] [stdout] test tests::node_balancer_tests::node_balancer_tests::test_removal_balancer_rebalance_needed ... ok
[INFO] [stdout] test tests::node_balancing_integration_tests::node_balancing_integration_tests::test_mixed_operations_with_node_balancing ... ok
[INFO] [stdout] test tests::node_balancing_integration_tests::node_balancing_integration_tests::test_removal_with_node_balancing ... ok
[INFO] [stdout] test tests::node_operations_tests::node_operations_tests::test_branch_node_merger ... ok
[INFO] [stdout] test tests::node_operations_tests::node_operations_tests::test_branch_node_splitter ... ok
[INFO] [stdout] test tests::node_operations_tests::node_operations_tests::test_leaf_node_merger ... ok
[INFO] [stdout] test tests::node_balancing_integration_tests::node_balancing_integration_tests::test_root_merge_after_removal ... ok
[INFO] [stdout] test tests::node_operations_tests::node_operations_tests::test_leaf_node_no_split_needed ... ok
[INFO] [stdout] test tests::node_operations_tests::node_operations_tests::test_leaf_node_rebalance ... ok
[INFO] [stdout] test tests::node_operations_tests::node_operations_tests::test_branch_node_no_split_needed ... ok
[INFO] [stdout] test tests::node_operations_tests::node_operations_tests::test_leaf_node_splitter ... ok
[INFO] [stdout] test tests::refactor_tests::refactor_tests::test_safe_mutable_traversal ... ok
[INFO] [stdout] test tests::tests::test_converting_bplus_tree_map_into_iterator ... ok
[INFO] [stdout] test tests::tests::test_create_with_custom_branching_factor ... ok
[INFO] [stdout] test tests::tests::test_creating_bplus_tree_map_from_iterator ... ok
[INFO] [stdout] test tests::tests::test_checking_if_key_exists ... ok
[INFO] [stdout] test tests::tests::test_create_empty_bplus_tree_map ... ok
[INFO] [stdout] test tests::tests::test_checking_if_map_is_empty ... ok
[INFO] [stdout] test tests::tests::test_creating_empty_bplus_tree_map_with_default ... ok
[INFO] [stdout] test tests::tests::test_debug_formatting ... ok
[INFO] [stdout] test tests::tests::test_entry_api ... ok
[INFO] [stdout] test tests::tests::test_extending_bplus_tree_map_with_iterator ... ok
[INFO] [stdout] test tests::tests::test_getting_number_of_elements ... ok
[INFO] [stdout] test tests::tests::test_indexing_syntax_with_index ... ok
[INFO] [stdout] test tests::tests::test_iterating_over_key_value_pairs ... ok
[INFO] [stdout] test tests::tests::test_insert_single_key_value_pair ... ok
[INFO] [stdout] test tests::tests::test_iterating_over_keys_only ... ok
[INFO] [stdout] test tests::tests::test_iterating_over_mutable_values ... ok
[INFO] [stdout] test tests::tests::test_cloning_bplus_tree_map ... ok
[INFO] [stdout] test tests::tests::test_common_iterator_abstraction ... ok
[INFO] [stdout] test tests::tests::test_iterating_with_mutable_references ... ok
[INFO] [stdout] test tests::tests::test_iterating_over_values_only ... ok
[INFO] [stdout] test tests::tests::test_leaf_node_splitting ... ok
[INFO] [stdout] test tests::tests::test_node_visitor_pattern ... ok
[INFO] [stdout] test tests::tests::test_overwriting_existing_key_value ... ok
[INFO] [stdout] test tests::tests::test_multi_level_tree_creation ... ok
[INFO] [stdout] test tests::tests::test_removing_key_value_pair ... ok
[INFO] [stdout] test tests::tests::test_retrieve_value_by_key ... ok
[INFO] [stdout] test tests::tests::test_indexing_with_nonexistent_key - should panic ... ok
[INFO] [stdout] test tests::tests::test_invalid_branching_factor - should panic ... ok
[INFO] [stdout] test tests::tests::test_branch_node_structure ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 47 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.16s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests bplus_tree2
[INFO] [stdout] 
[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] running `Command { std: "docker" "inspect" "0a380785e61742ebfe7319a73246c1f30a0908a79cc97c29291bf96d27e1a6b8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0a380785e61742ebfe7319a73246c1f30a0908a79cc97c29291bf96d27e1a6b8", kill_on_drop: false }`
[INFO] [stdout] 0a380785e61742ebfe7319a73246c1f30a0908a79cc97c29291bf96d27e1a6b8