[INFO] cloning repository https://github.com/kawashige/leetcode-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kawashige/leetcode-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkawashige%2Fleetcode-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkawashige%2Fleetcode-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9c551a50c6c1b92dc48c3a20e8b4048236bb332f
[INFO] checking kawashige/leetcode-rust against beta-2021-10-15 for beta-1.56-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkawashige%2Fleetcode-rust" "/workspace/builds/worker-89/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-89/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/kawashige/leetcode-rust on toolchain beta-2021-10-15
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-10-15" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/kawashige/leetcode-rust
[INFO] finished tweaking git repo https://github.com/kawashige/leetcode-rust
[INFO] tweaked toml for git repo https://github.com/kawashige/leetcode-rust written to /workspace/builds/worker-89/source/Cargo.toml
[INFO] crate git repo https://github.com/kawashige/leetcode-rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-10-15" "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-89/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-89/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-2021-10-15" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 57d5ee9411f21ee30acf304ec8c92401cd0a3679af04ea44cd85ea50da1271a1
[INFO] running `Command { std: "docker" "start" "-a" "57d5ee9411f21ee30acf304ec8c92401cd0a3679af04ea44cd85ea50da1271a1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "57d5ee9411f21ee30acf304ec8c92401cd0a3679af04ea44cd85ea50da1271a1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "57d5ee9411f21ee30acf304ec8c92401cd0a3679af04ea44cd85ea50da1271a1", kill_on_drop: false }`
[INFO] [stdout] 57d5ee9411f21ee30acf304ec8c92401cd0a3679af04ea44cd85ea50da1271a1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-89/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-89/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-2021-10-15" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 190ab7f9884bd7c70173d5b279c5b15290c8a176ef1989438e9ac7843336bcbd
[INFO] running `Command { std: "docker" "start" "-a" "190ab7f9884bd7c70173d5b279c5b15290c8a176ef1989438e9ac7843336bcbd", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.80
[INFO] [stderr]    Compiling getrandom v0.1.15
[INFO] [stderr]     Checking ppv-lite86 v0.2.10
[INFO] [stderr]     Checking day09_longest_increaseing_subsequence v0.1.0 (/opt/rustwide/workdir/july_leetcoding_challenge_2021/day09_longest_increaseing_subsequence)
[INFO] [stderr]     Checking p0844_backspace_string_compare v0.1.0 (/opt/rustwide/workdir/problems/p0844_backspace_string_compare)
[INFO] [stderr]     Checking p0513_find_bottom_left_tree_value v0.1.0 (/opt/rustwide/workdir/problems/p0513_find_bottom_left_tree_value)
[INFO] [stderr]     Checking p0500_keyboard_row v0.1.0 (/opt/rustwide/workdir/problems/p0500_keyboard_row)
[INFO] [stderr]     Checking day30_russian_doll_envelopes v0.1.0 (/opt/rustwide/workdir/march_leetcoding_challenge_2021/day30_russian_doll_envelopes)
[INFO] [stderr]     Checking p0842_split_array_into_fibonacci_sequence v0.1.0 (/opt/rustwide/workdir/problems/p0842_split_array_into_fibonacci_sequence)
[INFO] [stderr]     Checking day26_count_of_smaller_numbers_after_self v0.1.0 (/opt/rustwide/workdir/june_leetcoding_challenge_2021/day26_count_of_smaller_numbers_after_self)
[INFO] [stderr]     Checking p0655_print_binary_tree v0.1.0 (/opt/rustwide/workdir/problems/p0655_print_binary_tree)
[INFO] [stderr]     Checking p0831_masking_personal_information v0.1.0 (/opt/rustwide/workdir/problems/p0831_masking_personal_information)
[INFO] [stderr]     Checking p0491_increasing_subsequence v0.1.0 (/opt/rustwide/workdir/problems/p0491_increasing_subsequence)
[INFO] [stderr]     Checking day09_jump_game_vi v0.1.0 (/opt/rustwide/workdir/june_leetcoding_challenge_2021/day09_jump_game_vi)
[INFO] [stderr]     Checking p0812_largest_triangle_area v0.1.0 (/opt/rustwide/workdir/problems/p0812_largest_triangle_area)
[INFO] [stderr]     Checking p0789_escape_the_ghosts v0.1.0 (/opt/rustwide/workdir/problems/p0789_escape_the_ghosts)
[INFO] [stderr]     Checking p0738_monotone_increasing_digits v0.1.0 (/opt/rustwide/workdir/problems/p0738_monotone_increasing_digits)
[INFO] [stderr]     Checking p0707_design_linked_list v0.1.0 (/opt/rustwide/workdir/problems/p0707_design_linked_list)
[INFO] [stderr]     Checking p0508_most_frequent_subtree_sum v0.1.0 (/opt/rustwide/workdir/problems/p0508_most_frequent_subtree_sum)
[INFO] [stderr]     Checking day06_short_encoding_of_words v0.1.0 (/opt/rustwide/workdir/march_leetcoding_challenge_2021/day06_short_encoding_of_words)
[INFO] [stderr]     Checking p0937_reorder_data_in_log_files v0.1.0 (/opt/rustwide/workdir/problems/p0937_reorder_data_in_log_files)
[INFO] [stderr]     Checking p0641_design_circular_deque v0.1.0 (/opt/rustwide/workdir/problems/p0641_design_circular_deque)
[INFO] [stderr]     Checking p0464_can_i_win v0.1.0 (/opt/rustwide/workdir/problems/p0464_can_i_win)
[INFO] [stderr]     Checking day21_reordered_power_of_2 v0.1.0 (/opt/rustwide/workdir/march_leetcoding_challenge_2021/day21_reordered_power_of_2)
[INFO] [stderr]     Checking day12_check_if_a_string_contains_all_binary_codes_of_size_k v0.1.0 (/opt/rustwide/workdir/march_leetcoding_challenge_2021/day12_check_if_a_string_contains_all_binary_codes_of_size_k)
[INFO] [stderr]     Checking p0874_walking_robot_simulation v0.1.0 (/opt/rustwide/workdir/problems/p0874_walking_robot_simulation)
[INFO] [stderr]     Checking p0718_maximum_length_of_repeated_subarray v0.1.0 (/opt/rustwide/workdir/problems/p0718_maximum_length_of_repeated_subarray)
[INFO] [stderr]     Checking p0583_delete_operation_for_two_strings v0.1.0 (/opt/rustwide/workdir/problems/p0583_delete_operation_for_two_strings)
[INFO] [stderr]     Checking p0646_maximum_length_of_pair_chain v0.1.0 (/opt/rustwide/workdir/problems/p0646_maximum_length_of_pair_chain)
[INFO] [stderr]     Checking p0909_snakes_and_ladders v0.1.0 (/opt/rustwide/workdir/problems/p0909_snakes_and_ladders)
[INFO] [stderr]     Checking p0875_koko_eating_bananas v0.1.0 (/opt/rustwide/workdir/problems/p0875_koko_eating_bananas)
[INFO] [stderr]     Checking p1143_longest_common_subsequence v0.1.0 (/opt/rustwide/workdir/problems/p1143_longest_common_subsequence)
[INFO] [stderr]     Checking p0721_accounts_merge v0.1.0 (/opt/rustwide/workdir/problems/p0721_accounts_merge)
[INFO] [stderr]     Checking p0866_prime_palindrome v0.1.0 (/opt/rustwide/workdir/problems/p0866_prime_palindrome)
[INFO] [stderr]     Checking day15_the_k_th_weakest_rows_in_a_matrix v0.1.0 (/opt/rustwide/workdir/february_leetcoding_challenge_2021/day15_the_k_th_weakest_rows_in_a_matrix)
[INFO] [stderr]     Checking p0791_custom_sort_string v0.1.0 (/opt/rustwide/workdir/problems/p0791_custom_sort_string)
[INFO] [stderr]     Checking p0944_delete_columns_to_make_sorted v0.1.0 (/opt/rustwide/workdir/problems/p0944_delete_columns_to_make_sorted)
[INFO] [stderr]     Checking p0945_minimum_increment_to_make_array_unique v0.1.0 (/opt/rustwide/workdir/problems/p0945_minimum_increment_to_make_array_unique)
[INFO] [stderr]     Checking p0837_new_21_game v0.1.0 (/opt/rustwide/workdir/problems/p0837_new_21_game)
[INFO] [stderr]     Checking p0657_robot_return_to_origin v0.1.0 (/opt/rustwide/workdir/problems/p0657_robot_return_to_origin)
[INFO] [stderr]     Checking p0904_fruit_into_baskets v0.1.0 (/opt/rustwide/workdir/problems/p0904_fruit_into_baskets)
[INFO] [stderr]     Checking p0628_maximum_product_of_three_numbers v0.1.0 (/opt/rustwide/workdir/problems/p0628_maximum_product_of_three_numbers)
[INFO] [stderr]     Checking p0672_bulb_switcher_ii v0.1.0 (/opt/rustwide/workdir/problems/p0672_bulb_switcher_ii)
[INFO] [stderr]     Checking p0743_network_delay_time v0.1.0 (/opt/rustwide/workdir/problems/p0743_network_delay_time)
[INFO] [stderr]     Checking day08_remove_palindromic_subsequences v0.1.0 (/opt/rustwide/workdir/march_leetcoding_challenge_2021/day08_remove_palindromic_subsequences)
[INFO] [stderr]     Checking p0551_student_attendance_record_i v0.1.0 (/opt/rustwide/workdir/problems/p0551_student_attendance_record_i)
[INFO] [stderr]     Checking p0537_complex_number_multiplication v0.1.0 (/opt/rustwide/workdir/problems/p0537_complex_number_multiplication)
[INFO] [stderr]     Checking p0486_predict_the_winner v0.1.0 (/opt/rustwide/workdir/problems/p0486_predict_the_winner)
[INFO] [stderr]     Checking day19_expression_add_operators v0.1.0 (/opt/rustwide/workdir/september_leetcoding_challenge_2021/day19_expression_add_operators)
[INFO] [stderr]     Checking day21_sudoku_solver v0.1.0 (/opt/rustwide/workdir/august_leetcoding_challenge_2021/day21_sudoku_solver)
[INFO] [stderr]     Checking p0872_laaf_similar_trees v0.1.0 (/opt/rustwide/workdir/problems/p0872_laaf_similar_trees)
[INFO] [stderr]     Checking p0567_permutation_in_string v0.1.0 (/opt/rustwide/workdir/problems/p0567_permutation_in_string)
[INFO] [stderr]     Checking p0507_perfect_number v0.1.0 (/opt/rustwide/workdir/problems/p0507_perfect_number)
[INFO] [stderr]     Checking p0911_online_election v0.1.0 (/opt/rustwide/workdir/problems/p0911_online_election)
[INFO] [stderr]     Checking p0474_ones_and_zeros v0.1.0 (/opt/rustwide/workdir/problems/p0474_ones_and_zeros)
[INFO] [stderr]     Checking day17_three_equal_parts v0.1.0 (/opt/rustwide/workdir/july_leetcoding_challenge_2021/day17_three_equal_parts)
[INFO] [stderr]     Checking p0640_solve_the_equation v0.1.0 (/opt/rustwide/workdir/problems/p0640_solve_the_equation)
[INFO] [stderr]     Checking day22_rectangle_area_ii v0.1.0 (/opt/rustwide/workdir/august_leetcoding_challenge_2021/day22_rectangle_area_ii)
[INFO] [stderr]     Checking p0914_x_of_a_kind_in_a_deck_of_cards v0.1.0 (/opt/rustwide/workdir/problems/p0914_x_of_a_kind_in_a_deck_of_cards)
[INFO] [stderr]     Checking p0647_palindromic_substrings v0.1.0 (/opt/rustwide/workdir/problems/p0647_palindromic_substrings)
[INFO] [stderr]     Checking p0671_second_minimum_node_in_a_binary_tree v0.1.0 (/opt/rustwide/workdir/problems/p0671_second_minimum_node_in_a_binary_tree)
[INFO] [stderr]     Checking p0473_matchsticks_to_square v0.1.0 (/opt/rustwide/workdir/problems/p0473_matchsticks_to_square)
[INFO] [stderr]     Checking day09_verifying_an_alien_dictionary v0.1.0 (/opt/rustwide/workdir/april_leetcoding_challenge_2021/day09_verifying_an_alien_dictionary)
[INFO] [stderr]     Checking day03_erect_the_fence v0.1.0 (/opt/rustwide/workdir/september_leetcoding_challenge_2021/day03_erect_the_fence)
[INFO] [stderr]     Checking day06_slowest_key v0.1.0 (/opt/rustwide/workdir/september_leetcoding_challenge_2021/day06_slowest_key)
[INFO] [stderr]     Checking p0725_split_linked_list_in_parts v0.1.0 (/opt/rustwide/workdir/problems/p0725_split_linked_list_in_parts)
[INFO] [stderr]     Checking p0565_array_nesting v0.1.0 (/opt/rustwide/workdir/problems/p0565_array_nesting)
[INFO] [stderr]     Checking p0553_optimal_division v0.1.0 (/opt/rustwide/workdir/problems/p0553_optimal_division)
[INFO] [stderr]     Checking p0792_number_of_matching_subsequences v0.1.0 (/opt/rustwide/workdir/problems/p0792_number_of_matching_subsequences)
[INFO] [stderr]     Checking p0907_sum_of_subarray_minimums v0.1.0 (/opt/rustwide/workdir/problems/p0907_sum_of_subarray_minimums)
[INFO] [stderr]     Checking day10_arithmeric_slices_ii v0.1.0 (/opt/rustwide/workdir/september_leetcoding_challenge_2021/day10_arithmeric_slices_ii)
[INFO] [stderr]     Checking p0481_magical_string v0.1.0 (/opt/rustwide/workdir/problems/p0481_magical_string)
[INFO] [stderr]     Checking p0817_linked_list_components v0.1.0 (/opt/rustwide/workdir/problems/p0817_linked_list_components)
[INFO] [stderr]     Checking p0523_cotinuous_subarray_sum v0.1.0 (/opt/rustwide/workdir/problems/p0523_cotinuous_subarray_sum)
[INFO] [stderr]     Checking p0494_target_sum v0.1.0 (/opt/rustwide/workdir/problems/p0494_target_sum)
[INFO] [stderr]     Checking p0515_find_largest_value_in_each_row v0.1.0 (/opt/rustwide/workdir/problems/p0515_find_largest_value_in_each_row)
[INFO] [stderr]     Checking p0693_binary_number_with_altenating_bits v0.1.0 (/opt/rustwide/workdir/problems/p0693_binary_number_with_altenating_bits)
[INFO] [stderr]     Checking p0542_01_matrix v0.1.0 (/opt/rustwide/workdir/problems/p0542_01_matrix)
[INFO] [stderr]     Checking p0538_convert_bst_to_greater_tree v0.1.0 (/opt/rustwide/workdir/problems/p0538_convert_bst_to_greater_tree)
[INFO] [stderr]     Checking p0896_monotonic_array v0.1.0 (/opt/rustwide/workdir/problems/p0896_monotonic_array)
[INFO] [stderr]     Checking p0777_swap_adjacent_in_a_string v0.1.0 (/opt/rustwide/workdir/problems/p0777_swap_adjacent_in_a_string)
[INFO] [stderr]     Checking p0747_largest_number_at_least_twice_of_others v0.1.0 (/opt/rustwide/workdir/problems/p0747_largest_number_at_least_twice_of_others)
[INFO] [stderr]     Checking p0621_task_scheduler v0.1.0 (/opt/rustwide/workdir/problems/p0621_task_scheduler)
[INFO] [stderr]     Checking p0676_implement_magic_dictionary v0.1.0 (/opt/rustwide/workdir/problems/p0676_implement_magic_dictionary)
[INFO] [stderr]     Checking day07_palindrome_paritioning_ii v0.1.0 (/opt/rustwide/workdir/august_leetcoding_challenge_2021/day07_palindrome_paritioning_ii)
[INFO] [stderr]     Checking p0659_split_array_into_consecutive_subsequences v0.1.0 (/opt/rustwide/workdir/problems/p0659_split_array_into_consecutive_subsequences)
[INFO] [stderr]     Checking day14_maximum_units_in_a_truck v0.1.0 (/opt/rustwide/workdir/june_leetcoding_challenge_2021/day14_maximum_units_in_a_truck)
[INFO] [stderr]     Checking p0692_top_k_frequent_words v0.1.0 (/opt/rustwide/workdir/problems/p0692_top_k_frequent_words)
[INFO] [stderr]     Checking p0650_2_keys_keyboard v0.1.0 (/opt/rustwide/workdir/problems/p0650_2_keys_keyboard)
[INFO] [stderr]     Checking p0961_n_repeated_element_in_size_2n_array v0.1.0 (/opt/rustwide/workdir/problems/p0961_n_repeated_element_in_size_2n_array)
[INFO] [stderr]     Checking p0674_longest_continuouts_increasing_subsequence v0.1.0 (/opt/rustwide/workdir/problems/p0674_longest_continuouts_increasing_subsequence)
[INFO] [stderr]     Checking p0599_minimum_index_sum_of_two_lists v0.1.0 (/opt/rustwide/workdir/problems/p0599_minimum_index_sum_of_two_lists)
[INFO] [stderr]     Checking p0861_score_after_flipping_matrix v0.1.0 (/opt/rustwide/workdir/problems/p0861_score_after_flipping_matrix)
[INFO] [stderr]     Checking p0598_range_addition_ii v0.1.0 (/opt/rustwide/workdir/problems/p0598_range_addition_ii)
[INFO] [stderr]     Checking p0846_hand_of_straights v0.1.0 (/opt/rustwide/workdir/problems/p0846_hand_of_straights)
[INFO] [stderr]     Checking p0554_brick_wall v0.1.0 (/opt/rustwide/workdir/problems/p0554_brick_wall)
[INFO] [stderr]     Checking day22_vowel_spellchecker v0.1.0 (/opt/rustwide/workdir/march_leetcoding_challenge_2021/day22_vowel_spellchecker)
[INFO] [stderr]     Checking p0212_word_search_ii v0.1.0 (/opt/rustwide/workdir/problems/p0212_word_search_ii)
[INFO] [stderr]     Checking p0942_di_string_match v0.1.0 (/opt/rustwide/workdir/problems/p0942_di_string_match)
[INFO] [stderr]     Checking p0654_maximum_binary_tree v0.1.0 (/opt/rustwide/workdir/problems/p0654_maximum_binary_tree)
[INFO] [stderr]     Checking p0576_out_of_boundary_paths v0.1.0 (/opt/rustwide/workdir/problems/p0576_out_of_boundary_paths)
[INFO] [stderr]     Checking p0901_online_stock_span v0.1.0 (/opt/rustwide/workdir/problems/p0901_online_stock_span)
[INFO] [stderr]     Checking p0884_uncommon_words_from_two_sentences v0.1.0 (/opt/rustwide/workdir/problems/p0884_uncommon_words_from_two_sentences)
[INFO] [stderr]     Checking p0830_positions_of_large_groups v0.1.0 (/opt/rustwide/workdir/problems/p0830_positions_of_large_groups)
[INFO] [stderr]     Checking p0919_complete_binary_tree_inserter v0.1.0 (/opt/rustwide/workdir/problems/p0919_complete_binary_tree_inserter)
[INFO] [stderr]     Checking p0973_k_closest_points_to_origin v0.1.0 (/opt/rustwide/workdir/problems/p0973_k_closest_points_to_origin)
[INFO] [stderr]     Checking p0706_design_hashmap v0.1.0 (/opt/rustwide/workdir/problems/p0706_design_hashmap)
[INFO] [stderr]     Checking day28_maximum_profit_in_job_scheduling v0.1.0 (/opt/rustwide/workdir/august_leetcoding_challenge_2021/day28_maximum_profit_in_job_scheduling)
[INFO] [stderr]     Checking p0476_number_complement v0.1.0 (/opt/rustwide/workdir/problems/p0476_number_complement)
[INFO] [stderr]     Checking september_leetcoding_challenge v0.1.0 (/opt/rustwide/workdir/september_leetcoding_challenge)
[INFO] [stderr]     Checking p0930_binary_subarray_with_sum v0.1.0 (/opt/rustwide/workdir/problems/p0930_binary_subarray_with_sum)
[INFO] [stderr]     Checking p0748_shortest_completing_word v0.1.0 (/opt/rustwide/workdir/problems/p0748_shortest_completing_word)
[INFO] [stderr]     Checking p0724_find_pivot_index v0.1.0 (/opt/rustwide/workdir/problems/p0724_find_pivot_index)
[INFO] [stderr] error: could not compile `libc`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name build_script_build /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/libc-0.2.80/build.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type bin --emit=dep-info,link -C embed-bitcode=no -C debuginfo=2 -C metadata=57e9a47daf44642e -C extra-filename=-57e9a47daf44642e --out-dir /opt/rustwide/target/debug/build/libc-57e9a47daf44642e -L dependency=/opt/rustwide/target/debug/deps --cap-lints allow --cap-lints=warn` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> problems/p0707_design_linked_list/src/lib.rs:10:12
[INFO] [stdout]    |
[INFO] [stdout] 10 |     pub fn new(val: i32) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `delete_front`
[INFO] [stdout]   --> problems/p0641_design_circular_deque/src/lib.rs:60:8
[INFO] [stdout]    |
[INFO] [stdout] 60 |     fn delete_front(&mut self) -> bool {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> problems/p0725_split_linked_list_in_parts/src/lib.rs:10:8
[INFO] [stdout]    |
[INFO] [stdout] 10 |     fn new(val: i32) -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> problems/p0707_design_linked_list/src/lib.rs:27:8
[INFO] [stdout]    |
[INFO] [stdout] 27 |     fn new() -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get`
[INFO] [stdout]   --> problems/p0707_design_linked_list/src/lib.rs:36:8
[INFO] [stdout]    |
[INFO] [stdout] 36 |     fn get(&self, index: i32) -> i32 {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `add_at_head`
[INFO] [stdout]   --> problems/p0707_design_linked_list/src/lib.rs:50:8
[INFO] [stdout]    |
[INFO] [stdout] 50 |     fn add_at_head(&mut self, val: i32) {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `add_at_tail`
[INFO] [stdout]   --> problems/p0707_design_linked_list/src/lib.rs:62:8
[INFO] [stdout]    |
[INFO] [stdout] 62 |     fn add_at_tail(&mut self, val: i32) {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `add_at_index`
[INFO] [stdout]   --> problems/p0707_design_linked_list/src/lib.rs:74:8
[INFO] [stdout]    |
[INFO] [stdout] 74 |     fn add_at_index(&mut self, index: i32, val: i32) {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `delete_at_index`
[INFO] [stdout]   --> problems/p0707_design_linked_list/src/lib.rs:98:8
[INFO] [stdout]    |
[INFO] [stdout] 98 |     fn delete_at_index(&mut self, index: i32) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `MyCircularDeque`
[INFO] [stdout]  --> problems/p0641_design_circular_deque/src/lib.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | struct MyCircularDeque {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> problems/p0641_design_circular_deque/src/lib.rs:14:8
[INFO] [stdout]    |
[INFO] [stdout] 14 |     fn new(k: i32) -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `insert_front`
[INFO] [stdout]   --> problems/p0641_design_circular_deque/src/lib.rs:24:8
[INFO] [stdout]    |
[INFO] [stdout] 24 |     fn insert_front(&mut self, value: i32) -> bool {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `insert_last`
[INFO] [stdout]   --> problems/p0641_design_circular_deque/src/lib.rs:42:8
[INFO] [stdout]    |
[INFO] [stdout] 42 |     fn insert_last(&mut self, value: i32) -> bool {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `delete_front`
[INFO] [stdout]   --> problems/p0641_design_circular_deque/src/lib.rs:60:8
[INFO] [stdout]    |
[INFO] [stdout] 60 |     fn delete_front(&mut self) -> bool {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `delete_last`
[INFO] [stdout]   --> problems/p0641_design_circular_deque/src/lib.rs:77:8
[INFO] [stdout]    |
[INFO] [stdout] 77 |     fn delete_last(&mut self) -> bool {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_front`
[INFO] [stdout]   --> problems/p0641_design_circular_deque/src/lib.rs:94:8
[INFO] [stdout]    |
[INFO] [stdout] 94 |     fn get_front(&self) -> i32 {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_rear`
[INFO] [stdout]    --> problems/p0641_design_circular_deque/src/lib.rs:103:8
[INFO] [stdout]     |
[INFO] [stdout] 103 |     fn get_rear(&self) -> i32 {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_empty`
[INFO] [stdout]    --> problems/p0641_design_circular_deque/src/lib.rs:112:8
[INFO] [stdout]     |
[INFO] [stdout] 112 |     fn is_empty(&self) -> bool {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_full`
[INFO] [stdout]    --> problems/p0641_design_circular_deque/src/lib.rs:117:8
[INFO] [stdout]     |
[INFO] [stdout] 117 |     fn is_full(&self) -> bool {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `StockSpanner`
[INFO] [stdout]  --> problems/p0901_online_stock_span/src/lib.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | struct StockSpanner {
[INFO] [stdout]   |        ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> problems/p0901_online_stock_span/src/lib.rs:11:8
[INFO] [stdout]    |
[INFO] [stdout] 11 |     fn new() -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `next`
[INFO] [stdout]   --> problems/p0901_online_stock_span/src/lib.rs:18:8
[INFO] [stdout]    |
[INFO] [stdout] 18 |     fn next(&mut self, price: i32) -> i32 {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::unreachable`
[INFO] [stdout]  --> problems/p0672_bulb_switcher_ii/src/lib.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::unreachable;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `MyHashMap`
[INFO] [stdout]  --> problems/p0706_design_hashmap/src/lib.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | struct MyHashMap {
[INFO] [stdout]   |        ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated constant is never used: `SIZE`
[INFO] [stdout]   --> problems/p0706_design_hashmap/src/lib.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     const SIZE: usize = 10_000;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> problems/p0706_design_hashmap/src/lib.rs:13:8
[INFO] [stdout]    |
[INFO] [stdout] 13 |     fn new() -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `put`
[INFO] [stdout]   --> problems/p0706_design_hashmap/src/lib.rs:20:8
[INFO] [stdout]    |
[INFO] [stdout] 20 |     fn put(&mut self, key: i32, value: i32) {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get`
[INFO] [stdout]   --> problems/p0706_design_hashmap/src/lib.rs:30:8
[INFO] [stdout]    |
[INFO] [stdout] 30 |     fn get(&self, key: i32) -> i32 {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `remove`
[INFO] [stdout]   --> problems/p0706_design_hashmap/src/lib.rs:40:8
[INFO] [stdout]    |
[INFO] [stdout] 40 |     fn remove(&mut self, key: i32) {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `intersect`
[INFO] [stdout]   --> september_leetcoding_challenge_2021/day03_erect_the_fence/src/lib.rs:44:12
[INFO] [stdout]    |
[INFO] [stdout] 44 |     pub fn intersect(p1: &Point, p2: &Point, p3: &Point, p4: &Point) -> bool {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `t`
[INFO] [stdout]   --> problems/p0911_online_election/src/lib.rs:18:17
[INFO] [stdout]    |
[INFO] [stdout] 18 |         for (p, t) in persons.into_iter().zip(times.iter()) {
[INFO] [stdout]    |                 ^ help: if this is intentional, prefix it with an underscore: `_t`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> problems/p0911_online_election/src/lib.rs:45:13
[INFO] [stdout]    |
[INFO] [stdout] 45 |         let mut obj =
[INFO] [stdout]    |             ----^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "190ab7f9884bd7c70173d5b279c5b15290c8a176ef1989438e9ac7843336bcbd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "190ab7f9884bd7c70173d5b279c5b15290c8a176ef1989438e9ac7843336bcbd", kill_on_drop: false }`
[INFO] [stdout] 190ab7f9884bd7c70173d5b279c5b15290c8a176ef1989438e9ac7843336bcbd
