[INFO] fetching crate flex-algo 0.7.0...
[INFO] testing flex-algo-0.7.0 against master#cdb45c87e2cd43495379f7e867e3cc15dcee9f93 for pr-145838-1
[INFO] extracting crate flex-algo 0.7.0 into /workspace/builds/worker-4-tc1/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-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate flex-algo 0.7.0 on toolchain cdb45c87e2cd43495379f7e867e3cc15dcee9f93
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "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" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5b3466cb212026f2f5027452ba23b6c58b76882dd874a0e6b86f35f1ae8c6fa2
[INFO] running `Command { std: "docker" "start" "-a" "5b3466cb212026f2f5027452ba23b6c58b76882dd874a0e6b86f35f1ae8c6fa2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5b3466cb212026f2f5027452ba23b6c58b76882dd874a0e6b86f35f1ae8c6fa2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5b3466cb212026f2f5027452ba23b6c58b76882dd874a0e6b86f35f1ae8c6fa2", kill_on_drop: false }`
[INFO] [stdout] 5b3466cb212026f2f5027452ba23b6c58b76882dd874a0e6b86f35f1ae8c6fa2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b51552c7e274e808612452dace224fbc105a8dbd670a7c6afc6ff3404724b634
[INFO] running `Command { std: "docker" "start" "-a" "b51552c7e274e808612452dace224fbc105a8dbd670a7c6afc6ff3404724b634", 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 1.20s
[INFO] running `Command { std: "docker" "inspect" "b51552c7e274e808612452dace224fbc105a8dbd670a7c6afc6ff3404724b634", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b51552c7e274e808612452dace224fbc105a8dbd670a7c6afc6ff3404724b634", kill_on_drop: false }`
[INFO] [stdout] b51552c7e274e808612452dace224fbc105a8dbd670a7c6afc6ff3404724b634
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 723cd3c7e06157c6beb0df9dcce19a98b2fdf141a1ae8e4446e869f2c4c827b1
[INFO] running `Command { std: "docker" "start" "-a" "723cd3c7e06157c6beb0df9dcce19a98b2fdf141a1ae8e4446e869f2c4c827b1", 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 0.78s
[INFO] running `Command { std: "docker" "inspect" "723cd3c7e06157c6beb0df9dcce19a98b2fdf141a1ae8e4446e869f2c4c827b1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "723cd3c7e06157c6beb0df9dcce19a98b2fdf141a1ae8e4446e869f2c4c827b1", kill_on_drop: false }`
[INFO] [stdout] 723cd3c7e06157c6beb0df9dcce19a98b2fdf141a1ae8e4446e869f2c4c827b1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 7e90de58b52e4d58f16b91e42d7713207db19558867c2a515be8eff7be051a7d
[INFO] running `Command { std: "docker" "start" "-a" "7e90de58b52e4d58f16b91e42d7713207db19558867c2a515be8eff7be051a7d", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/flex_algo-8ff08509cc8df79d)
[INFO] [stdout] running 21 tests
[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_search_tree::tests::test_bst_search ... ok
[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_depth ... ok
[INFO] [stdout] test binary_tree::tests::test_binary_tree_insert_as_complete ... ok
[INFO] [stdout] test binary_tree::tests::test_binary_tree_level_order ... 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_graph ... 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_bfs ... ok
[INFO] [stdout] test graph::tests::test_is_acyclic_top_sort ... ok
[INFO] [stdout] test dijkstra::tests::test_dijkstra ... 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 binary_tree::tests::test_binary_tree_left_side_view ... ok
[INFO] [stdout] test binary_tree::tests::test_binary_tree_right_side_view ... 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] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/flex_algo-c9ae06f2977310dc)
[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] [stderr]    Doc-tests flex_algo
[INFO] [stdout] 
[INFO] [stdout] running 29 tests
[INFO] [stdout] test src/binary_search_tree.rs - binary_search_tree::BST<T>::new (line 33) ... 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>::count_nodes (line 400) ... 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>::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>::insert (line 51) ... ok
[INFO] [stdout] test src/binary_tree.rs - binary_tree::BinaryTree<T>::height (line 380) ... ok
[INFO] [stdout] test src/binary_tree.rs - binary_tree::BinaryTree<T>::insert_as_complete (line 118) ... ok
[INFO] [stdout] test src/binary_tree.rs - binary_tree::BinaryTree<T>::depth (line 204) ... ok
[INFO] [stdout] test src/dijkstra.rs - dijkstra::Dijkstra::new (line 20) ... ok
[INFO] [stdout] test src/binary_tree.rs - binary_tree::BinaryTree<T>::left_side_view (line 319) ... ok
[INFO] [stdout] test src/dijkstra.rs - dijkstra::Dijkstra::shortest_path (line 44) ... 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>::level_order (line 235) ... ok
[INFO] [stdout] test src/graph.rs - graph::Graph::breadth_first_search (line 130) ... ok
[INFO] [stdout] test src/binary_tree.rs - binary_tree::BinaryTree<T>::print_preorder (line 175) ... ok
[INFO] [stdout] test src/graph.rs - graph::Graph::new (line 21) ... ok
[INFO] [stdout] test src/graph.rs - graph::Graph::depth_first_search (line 166) ... ok
[INFO] [stdout] test src/graph.rs - graph::Graph::is_acyclic_bfs (line 47) ... ok
[INFO] [stdout] test src/graph.rs - graph::Graph::is_acyclic_top_sort (line 96) ... ok
[INFO] [stdout] test src/binary_tree.rs - binary_tree::BinaryTree<T>::right_side_view (line 285) ... ok
[INFO] [stdout] test src/priority_queue.rs - priority_queue::PriorityQueue<F,T>::pop (line 157) ... 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>::push (line 119) ... 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>::new (line 46) ... ok
[INFO] [stdout] test src/priority_queue.rs - priority_queue::PriorityQueue<F,T>::size (line 63) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 29 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 2.14s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "7e90de58b52e4d58f16b91e42d7713207db19558867c2a515be8eff7be051a7d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7e90de58b52e4d58f16b91e42d7713207db19558867c2a515be8eff7be051a7d", kill_on_drop: false }`
[INFO] [stdout] 7e90de58b52e4d58f16b91e42d7713207db19558867c2a515be8eff7be051a7d