[INFO] fetching crate flex-algo 0.7.0...
[INFO] testing flex-algo-0.7.0 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate flex-algo 0.7.0 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate flex-algo 0.7.0
[INFO] finished tweaking crates.io crate flex-algo 0.7.0
[INFO] tweaked toml for crates.io crate flex-algo 0.7.0 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate flex-algo 0.7.0 on toolchain beta-2025-09-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate flex-algo 0.7.0 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" "+beta-2025-09-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 51d12a00bd7616345d72e4a6638a9773af9a47b91a320024b0d56b2d900ddcb9
[INFO] running `Command { std: "docker" "start" "-a" "51d12a00bd7616345d72e4a6638a9773af9a47b91a320024b0d56b2d900ddcb9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "51d12a00bd7616345d72e4a6638a9773af9a47b91a320024b0d56b2d900ddcb9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "51d12a00bd7616345d72e4a6638a9773af9a47b91a320024b0d56b2d900ddcb9", kill_on_drop: false }`
[INFO] [stdout] 51d12a00bd7616345d72e4a6638a9773af9a47b91a320024b0d56b2d900ddcb9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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=warn" "-e" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 36a5d6a43db85040a0efae1ca9e3aafff73b01395a9700800c5af26fd9cc889a
[INFO] running `Command { std: "docker" "start" "-a" "36a5d6a43db85040a0efae1ca9e3aafff73b01395a9700800c5af26fd9cc889a", kill_on_drop: false }`
[INFO] [stderr]    Compiling flex-algo v0.7.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.15s
[INFO] running `Command { std: "docker" "inspect" "36a5d6a43db85040a0efae1ca9e3aafff73b01395a9700800c5af26fd9cc889a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "36a5d6a43db85040a0efae1ca9e3aafff73b01395a9700800c5af26fd9cc889a", kill_on_drop: false }`
[INFO] [stdout] 36a5d6a43db85040a0efae1ca9e3aafff73b01395a9700800c5af26fd9cc889a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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=warn" "-e" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9ca790ba29f9967fd05996d899d7dcde9ecdea365146d8aa8bd38abb70763c7e
[INFO] running `Command { std: "docker" "start" "-a" "9ca790ba29f9967fd05996d899d7dcde9ecdea365146d8aa8bd38abb70763c7e", kill_on_drop: false }`
[INFO] [stderr]    Compiling flex-algo v0.7.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.64s
[INFO] running `Command { std: "docker" "inspect" "9ca790ba29f9967fd05996d899d7dcde9ecdea365146d8aa8bd38abb70763c7e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9ca790ba29f9967fd05996d899d7dcde9ecdea365146d8aa8bd38abb70763c7e", kill_on_drop: false }`
[INFO] [stdout] 9ca790ba29f9967fd05996d899d7dcde9ecdea365146d8aa8bd38abb70763c7e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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=warn" "-e" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] a74efe3f8f7ee36b313b0efa0008a183626d88de281d1c4ec9eb0be9a2d829a0
[INFO] running `Command { std: "docker" "start" "-a" "a74efe3f8f7ee36b313b0efa0008a183626d88de281d1c4ec9eb0be9a2d829a0", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/flex_algo-22dd4e99ae7b9eea)
[INFO] [stdout] 
[INFO] [stdout] running 21 tests
[INFO] [stdout] test binary_tree::tests::test_binary_node ... ok
[INFO] [stdout] test binary_tree::tests::test_binary_tree ... ok
[INFO] [stdout] test binary_tree::tests::test_binary_tree_count_nodes ... ok
[INFO] [stdout] test binary_tree::tests::test_binary_tree_left_side_view ... ok
[INFO] [stdout] test binary_tree::tests::test_binary_tree_level_order ... ok
[INFO] [stdout] test binary_tree::tests::test_binary_tree_right_side_view ... ok
[INFO] [stdout] test dijkstra::tests::test_dijkstra ... ok
[INFO] [stdout] test binary_search_tree::tests::test_bst_insert ... ok
[INFO] [stdout] test binary_search_tree::tests::test_bst_is_valid ... ok
[INFO] [stdout] test binary_tree::tests::test_binary_tree_depth ... ok
[INFO] [stdout] test binary_tree::tests::test_binary_tree_insert_as_complete ... ok
[INFO] [stdout] test binary_tree::tests::test_binary_tree_none ... ok
[INFO] [stdout] test dijkstra::tests::test_shortest_path ... ok
[INFO] [stdout] test graph::tests::test_dfs ... ok
[INFO] [stdout] test graph::tests::test_is_acyclic_graph ... ok
[INFO] [stdout] test graph::tests::test_is_acyclic_top_sort ... ok
[INFO] [stdout] test priority_queue::tests::test_priority_queue_function ... ok
[INFO] [stdout] test priority_queue::tests::test_priority_queue_closure ... ok
[INFO] [stdout] test graph::tests::test_graph ... ok
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/flex_algo-9c75f547ef7ae4e3)
[INFO] [stderr]    Doc-tests flex_algo
[INFO] [stdout] test graph::tests::test_bfs ... ok
[INFO] [stdout] test binary_search_tree::tests::test_bst_search ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 21 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s
[INFO] [stdout] 
[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] [stdout] 
[INFO] [stdout] running 29 tests
[INFO] [stdout] test src/binary_search_tree.rs - binary_search_tree::BST<T>::search (line 120) ... ok
[INFO] [stdout] test src/binary_search_tree.rs - binary_search_tree::BST<T>::is_valid (line 88) ... ok
[INFO] [stdout] test src/binary_tree.rs - binary_tree::BinaryTree<T>::depth (line 204) ... ok
[INFO] [stdout] test src/binary_search_tree.rs - binary_search_tree::BST<T>::insert (line 55) ... ok
[INFO] [stdout] test src/binary_tree.rs - binary_tree::BinaryTree<T>::height (line 380) ... ok
[INFO] [stdout] test src/binary_search_tree.rs - binary_search_tree::BST<T>::print_preorder (line 156) ... ok
[INFO] [stdout] test src/binary_search_tree.rs - binary_search_tree::BST<T>::new (line 33) ... ok
[INFO] [stdout] test src/binary_tree.rs - binary_tree::BinaryTree<T>::print_preorder (line 175) ... ok
[INFO] [stdout] test src/binary_tree.rs - binary_tree::BinaryTree<T>::insert (line 51) ... ok
[INFO] [stdout] test src/binary_tree.rs - binary_tree::BinaryTree<T>::right_side_view (line 285) ... ok
[INFO] [stdout] test src/binary_tree.rs - binary_tree::BinaryTree<T>::count_nodes (line 400) ... ok
[INFO] [stdout] test src/binary_tree.rs - binary_tree::BinaryTree<T>::left_side_view (line 319) ... ok
[INFO] [stdout] test src/binary_tree.rs - binary_tree::BinaryTree<T>::level_order (line 235) ... ok
[INFO] [stdout] test src/binary_tree.rs - binary_tree::BinaryTree<T>::new (line 35) ... ok
[INFO] [stdout] test src/binary_tree.rs - binary_tree::BinaryTree<T>::insert_as_complete (line 118) ... ok
[INFO] [stdout] test src/graph.rs - graph::Graph::is_acyclic_top_sort (line 96) ... ok
[INFO] [stdout] test src/graph.rs - graph::Graph::is_acyclic_bfs (line 47) ... ok
[INFO] [stdout] test src/dijkstra.rs - dijkstra::Dijkstra::new (line 20) ... ok
[INFO] [stdout] test src/graph.rs - graph::Graph::breadth_first_search (line 130) ... ok
[INFO] [stdout] test src/priority_queue.rs - priority_queue::Debug (line 8) ... ok
[INFO] [stdout] test src/priority_queue.rs - priority_queue::PriorityQueue<F,T>::new (line 46) ... ok
[INFO] [stdout] test src/dijkstra.rs - dijkstra::Dijkstra::shortest_path (line 44) ... ok
[INFO] [stdout] test src/priority_queue.rs - priority_queue::PriorityQueue<F,T>::peek (line 180) ... ok
[INFO] [stdout] test src/priority_queue.rs - priority_queue::PriorityQueue<F,T>::is_empty (line 77) ... ok
[INFO] [stdout] test src/priority_queue.rs - priority_queue::PriorityQueue<F,T>::pop (line 157) ... ok
[INFO] [stdout] test src/graph.rs - graph::Graph::depth_first_search (line 166) ... ok
[INFO] [stdout] test src/graph.rs - graph::Graph::new (line 21) ... ok
[INFO] [stdout] test src/priority_queue.rs - priority_queue::PriorityQueue<F,T>::size (line 63) ... ok
[INFO] [stdout] test src/priority_queue.rs - priority_queue::PriorityQueue<F,T>::push (line 119) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 29 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 2.89s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "a74efe3f8f7ee36b313b0efa0008a183626d88de281d1c4ec9eb0be9a2d829a0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a74efe3f8f7ee36b313b0efa0008a183626d88de281d1c4ec9eb0be9a2d829a0", kill_on_drop: false }`
[INFO] [stdout] a74efe3f8f7ee36b313b0efa0008a183626d88de281d1c4ec9eb0be9a2d829a0