[INFO] fetching crate binary_search_tree 0.2.2...
[INFO] testing binary_search_tree-0.2.2 against 1.55.0 for beta-1.56-1
[INFO] extracting crate binary_search_tree 0.2.2 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate binary_search_tree 0.2.2 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate binary_search_tree 0.2.2
[INFO] finished tweaking crates.io crate binary_search_tree 0.2.2
[INFO] tweaked toml for crates.io crate binary_search_tree 0.2.2 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bc51b7839eea47e28176e840dfb328c2572ba75c731ed2978e1020ed3b537836
[INFO] running `Command { std: "docker" "start" "-a" "bc51b7839eea47e28176e840dfb328c2572ba75c731ed2978e1020ed3b537836", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bc51b7839eea47e28176e840dfb328c2572ba75c731ed2978e1020ed3b537836", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bc51b7839eea47e28176e840dfb328c2572ba75c731ed2978e1020ed3b537836", kill_on_drop: false }`
[INFO] [stdout] bc51b7839eea47e28176e840dfb328c2572ba75c731ed2978e1020ed3b537836
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4483f04a15419ae12d73308e8b50cd5f59c7c5b37a59a891b987c42f5e2bd011
[INFO] running `Command { std: "docker" "start" "-a" "4483f04a15419ae12d73308e8b50cd5f59c7c5b37a59a891b987c42f5e2bd011", kill_on_drop: false }`
[INFO] [stderr]    Compiling binary_search_tree v0.2.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.28s
[INFO] running `Command { std: "docker" "inspect" "4483f04a15419ae12d73308e8b50cd5f59c7c5b37a59a891b987c42f5e2bd011", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4483f04a15419ae12d73308e8b50cd5f59c7c5b37a59a891b987c42f5e2bd011", kill_on_drop: false }`
[INFO] [stdout] 4483f04a15419ae12d73308e8b50cd5f59c7c5b37a59a891b987c42f5e2bd011
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b7196ba397287512525bc7f23bc3132c9854015f6b2af00fc24cae386292ef77
[INFO] running `Command { std: "docker" "start" "-a" "b7196ba397287512525bc7f23bc3132c9854015f6b2af00fc24cae386292ef77", kill_on_drop: false }`
[INFO] [stderr]    Compiling binary_search_tree v0.2.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.87s
[INFO] running `Command { std: "docker" "inspect" "b7196ba397287512525bc7f23bc3132c9854015f6b2af00fc24cae386292ef77", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b7196ba397287512525bc7f23bc3132c9854015f6b2af00fc24cae386292ef77", kill_on_drop: false }`
[INFO] [stdout] b7196ba397287512525bc7f23bc3132c9854015f6b2af00fc24cae386292ef77
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 179f28431d6d3d3f641c2c54d7520e9fc817a0a1a71c60ddf9dba0c6e5b2791d
[INFO] running `Command { std: "docker" "start" "-a" "179f28431d6d3d3f641c2c54d7520e9fc817a0a1a71c60ddf9dba0c6e5b2791d", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.00s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/binary_search_tree-220530bfd558c13e)
[INFO] [stdout] 
[INFO] [stdout] running 16 tests
[INFO] [stdout] test test::clone ... ok
[INFO] [stdout] test test::basics ... ok
[INFO] [stdout] test test::display ... ok
[INFO] [stdout] test test::extend ... ok
[INFO] [stdout] test test::extract_min ... ok
[INFO] [stdout] test test::extract_max ... ok
[INFO] [stdout] test test::from_iter ... ok
[INFO] [stdout] test test::insert_without_duplication ... ok
[INFO] [stdout] test test::inorder ... ok
[INFO] [stdout] test test::into_sorted_vec ... ok
[INFO] [stdout] test test::level_order ... ok
[INFO] [stdout] test test::partail_eq ... ok
[INFO] [stdout] test test::postorder ... ok
[INFO] [stdout] test test::preorder ... ok
[INFO] [stdout] test test::reverse_order ... ok
[INFO] [stdout] test test::successor_and_predecessor ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 16 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests binary_search_tree
[INFO] [stdout] 
[INFO] [stdout] running 25 tests
[INFO] [stdout] test src/lib.rs - BinarySearchTree<T>::clear (line 193) ... ok
[INFO] [stdout] test src/lib.rs - BinarySearchTree<T>::len (line 178) ... ok
[INFO] [stdout] test src/lib.rs - BinarySearchTree<T>::contains (line 284) ... ok
[INFO] [stdout] test src/lib.rs - BinarySearchTree<T>::root (line 209) ... ok
[INFO] [stdout] test src/lib.rs - BinarySearchTree<T>::insert_without_dup (line 257) ... ok
[INFO] [stdout] test src/lib.rs - BinarySearchTree<T>::is_empty (line 161) ... ok
[INFO] [stdout] test src/lib.rs - BinarySearchTree<T>::successor (line 347) ... ok
[INFO] [stdout] test src/lib.rs - BinarySearchTree<T>::into_sorted_vec (line 524) ... ok
[INFO] [stdout] test src/lib.rs - BinarySearchTree<T>::preorder (line 589) ... ok
[INFO] [stdout] test src/lib.rs - BinarySearchTree<T>::level_order (line 634) ... ok
[INFO] [stdout] test src/lib.rs - BinarySearchTree (line 14) ... ok
[INFO] [stdout] test src/lib.rs - BinarySearchTree<T>::from_iter (line 109) ... ok
[INFO] [stdout] test src/lib.rs - BinarySearchTree<T>::extend (line 89) ... ok
[INFO] [stdout] test src/lib.rs - BinarySearchTree<T>::max (line 325) ... ok
[INFO] [stdout] test src/lib.rs - BinarySearchTree<T>::new (line 147) ... ok
[INFO] [stdout] test src/lib.rs - BinarySearchTree<T>::extract_min (line 418) ... ok
[INFO] [stdout] test src/lib.rs - BinarySearchTree<T>::insert (line 230) ... ok
[INFO] [stdout] test src/lib.rs - BinarySearchTree<T>::inorder (line 541) ... ok
[INFO] [stdout] test src/lib.rs - BinarySearchTree<T>::min (line 307) ... ok
[INFO] [stdout] test src/lib.rs - BinarySearchTree<T>::sorted_vec (line 506) ... ok
[INFO] [stdout] test src/lib.rs - BinarySearchTree<T>::predecessor (line 383) ... ok
[INFO] [stdout] test src/lib.rs - BinarySearchTree<T>::postorder (line 612) ... ok
[INFO] [stdout] test src/lib.rs - BinarySearchTree<T>::remove (line 474) ... ok
[INFO] [stdout] test src/lib.rs - BinarySearchTree<T>::reverse_order (line 566) ... ok
[INFO] [stdout] test src/lib.rs - BinarySearchTree<T>::extract_max (line 447) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 25 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.76s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "179f28431d6d3d3f641c2c54d7520e9fc817a0a1a71c60ddf9dba0c6e5b2791d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "179f28431d6d3d3f641c2c54d7520e9fc817a0a1a71c60ddf9dba0c6e5b2791d", kill_on_drop: false }`
[INFO] [stdout] 179f28431d6d3d3f641c2c54d7520e9fc817a0a1a71c60ddf9dba0c6e5b2791d