[INFO] updating cached repository https://github.com/geniousli/point24 [INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"` [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] e4bf9932b28c367af0f0f3f072f97706c7a47a4a [INFO] testing geniousli/point24 against 1.44.0 for beta-1.45-1 [INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgeniousli%2Fpoint24" "/workspace/builds/worker-0/source"` [INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/geniousli/point24 on toolchain 1.44.0 [INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started tweaking git repo https://github.com/geniousli/point24 [INFO] finished tweaking git repo https://github.com/geniousli/point24 [INFO] tweaked toml for git repo https://github.com/geniousli/point24 written to /workspace/builds/worker-0/source/Cargo.toml [INFO] crate git repo https://github.com/geniousli/point24 already has a lockfile, it will not be regenerated [INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.44.0" "build" "--frozen"` [INFO] [stdout] e241ee4bf64ce858dea5455609de6edc02b7d5fadc3aea1946a981f674271d94 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `"docker" "start" "-a" "e241ee4bf64ce858dea5455609de6edc02b7d5fadc3aea1946a981f674271d94"` [INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted [INFO] [stderr] Compiling point24 v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] warning: unused import: `std::str::FromStr` [INFO] [stderr] --> src/algorithm/lru.rs:7:5 [INFO] [stderr] | [INFO] [stderr] 7 | use std::str::FromStr; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused imports: `thread`, `time` [INFO] [stderr] --> src/algorithm/lru.rs:8:11 [INFO] [stderr] | [INFO] [stderr] 8 | use std::{thread, time}; [INFO] [stderr] | ^^^^^^ ^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::slice::Iter` [INFO] [stderr] --> src/algorithm/permutation_sequence.rs:2:5 [INFO] [stderr] | [INFO] [stderr] 2 | use std::slice::Iter; [INFO] [stderr] | ^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::ops::Range` [INFO] [stderr] --> src/algorithm/permutation_sequence.rs:4:5 [INFO] [stderr] | [INFO] [stderr] 4 | use std::ops::Range; [INFO] [stderr] | ^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::iter::Enumerate` [INFO] [stderr] --> src/algorithm/permutation_sequence.rs:5:5 [INFO] [stderr] | [INFO] [stderr] 5 | use std::iter::Enumerate; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::vec::Vec` [INFO] [stderr] --> src/algorithm/rotate_list.rs:1:5 [INFO] [stderr] | [INFO] [stderr] 1 | use std::vec::Vec; [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::ops::Deref` [INFO] [stderr] --> src/algorithm/implement_trie_prefix_tree.rs:5:5 [INFO] [stderr] | [INFO] [stderr] 5 | use std::ops::Deref; [INFO] [stderr] | ^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::collections::VecDeque` [INFO] [stderr] --> src/algorithm/group_anagrams.rs:3:5 [INFO] [stderr] | [INFO] [stderr] 3 | use std::collections::VecDeque; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::char` [INFO] [stderr] --> src/algorithm/group_anagrams.rs:6:5 [INFO] [stderr] | [INFO] [stderr] 6 | use std::char; [INFO] [stderr] | ^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::collections::VecDeque` [INFO] [stderr] --> src/algorithm/rotate_image.rs:3:5 [INFO] [stderr] | [INFO] [stderr] 3 | use std::collections::VecDeque; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::collections::hash_map::Entry` [INFO] [stderr] --> src/algorithm/rotate_image.rs:4:5 [INFO] [stderr] | [INFO] [stderr] 4 | use std::collections::hash_map::Entry; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::collections::HashMap` [INFO] [stderr] --> src/algorithm/rotate_image.rs:5:5 [INFO] [stderr] | [INFO] [stderr] 5 | use std::collections::HashMap; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::ops::Range` [INFO] [stderr] --> src/algorithm/rotate_image.rs:6:5 [INFO] [stderr] | [INFO] [stderr] 6 | use std::ops::Range; [INFO] [stderr] | ^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::char` [INFO] [stderr] --> src/algorithm/rotate_image.rs:7:5 [INFO] [stderr] | [INFO] [stderr] 7 | use std::char; [INFO] [stderr] | ^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::iter::Iterator` [INFO] [stderr] --> src/algorithm/sort_colors.rs:1:5 [INFO] [stderr] | [INFO] [stderr] 1 | use std::iter::Iterator; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::collections::VecDeque` [INFO] [stderr] --> src/algorithm/sort_colors.rs:3:5 [INFO] [stderr] | [INFO] [stderr] 3 | use std::collections::VecDeque; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::collections::VecDeque` [INFO] [stderr] --> src/algorithm/arithmetic_slices.rs:3:5 [INFO] [stderr] | [INFO] [stderr] 3 | use std::collections::VecDeque; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::str::Chars` [INFO] [stderr] --> src/algorithm/zigzag_conversion.rs:3:5 [INFO] [stderr] | [INFO] [stderr] 3 | use std::str::Chars; [INFO] [stderr] | ^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::cell::RefCell` [INFO] [stderr] --> src/algorithm/word_search.rs:1:5 [INFO] [stderr] | [INFO] [stderr] 1 | use std::cell::RefCell; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::collections::HashMap` [INFO] [stderr] --> src/algorithm/word_search.rs:2:5 [INFO] [stderr] | [INFO] [stderr] 2 | use std::collections::HashMap; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::mem::drop` [INFO] [stderr] --> src/algorithm/word_search.rs:4:5 [INFO] [stderr] | [INFO] [stderr] 4 | use std::mem::drop; [INFO] [stderr] | ^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::rc::Rc` [INFO] [stderr] --> src/algorithm/word_search.rs:5:5 [INFO] [stderr] | [INFO] [stderr] 5 | use std::rc::Rc; [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::rc::Weak` [INFO] [stderr] --> src/algorithm/word_search.rs:6:5 [INFO] [stderr] | [INFO] [stderr] 6 | use std::rc::Weak; [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::str::FromStr` [INFO] [stderr] --> src/algorithm/word_search.rs:8:5 [INFO] [stderr] | [INFO] [stderr] 8 | use std::str::FromStr; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused imports: `thread`, `time` [INFO] [stderr] --> src/algorithm/word_search.rs:11:11 [INFO] [stderr] | [INFO] [stderr] 11 | use std::{thread, time}; [INFO] [stderr] | ^^^^^^ ^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::mem::drop` [INFO] [stderr] --> src/algorithm/word_search_ii.rs:8:5 [INFO] [stderr] | [INFO] [stderr] 8 | use std::mem::drop; [INFO] [stderr] | ^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::rc::Weak` [INFO] [stderr] --> src/algorithm/word_search_ii.rs:10:5 [INFO] [stderr] | [INFO] [stderr] 10 | use std::rc::Weak; [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::str::FromStr` [INFO] [stderr] --> src/algorithm/word_search_ii.rs:11:5 [INFO] [stderr] | [INFO] [stderr] 11 | use std::str::FromStr; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused imports: `thread`, `time` [INFO] [stderr] --> src/algorithm/word_search_ii.rs:13:11 [INFO] [stderr] | [INFO] [stderr] 13 | use std::{thread, time}; [INFO] [stderr] | ^^^^^^ ^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::iter::Iterator` [INFO] [stderr] --> src/algorithm/lru.rs:3:5 [INFO] [stderr] | [INFO] [stderr] 3 | use std::iter::Iterator; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused variable: `pre` [INFO] [stderr] --> src/algorithm/add_two_number.rs:26:13 [INFO] [stderr] | [INFO] [stderr] 26 | let mut pre: i32 = 0; [INFO] [stderr] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_pre` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `data` [INFO] [stderr] --> src/algorithm/lru.rs:44:18 [INFO] [stderr] | [INFO] [stderr] 44 | Some(data) => {} [INFO] [stderr] | ^^^^ help: if this is intentional, prefix it with an underscore: `_data` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `val` [INFO] [stderr] --> src/algorithm/advantage_shuffle.rs:8:37 [INFO] [stderr] | [INFO] [stderr] 8 | if let Some((index, val)) = a.iter().enumerate().find(|item| item.1 > x) { [INFO] [stderr] | ^^^ help: if this is intentional, prefix it with an underscore: `_val` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `index` [INFO] [stderr] --> src/algorithm/fraction_to_recurring_decimal.rs:57:13 [INFO] [stderr] | [INFO] [stderr] 57 | let mut index: Option = None; [INFO] [stderr] | ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_index` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `max_x` [INFO] [stderr] --> src/algorithm/word_search.rs:56:32 [INFO] [stderr] | [INFO] [stderr] 56 | fn new(x: usize, y: usize, max_x: usize, max_y: usize) -> Node { [INFO] [stderr] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_max_x` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `max_y` [INFO] [stderr] --> src/algorithm/word_search.rs:56:46 [INFO] [stderr] | [INFO] [stderr] 56 | fn new(x: usize, y: usize, max_x: usize, max_y: usize) -> Node { [INFO] [stderr] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_max_y` [INFO] [stderr] [INFO] [stderr] warning: value assigned to `i_y` is never read [INFO] [stderr] --> src/algorithm/word_search.rs:100:13 [INFO] [stderr] | [INFO] [stderr] 100 | let mut i_y = 0; [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_assignments)]` on by default [INFO] [stderr] = help: maybe it is overwritten before being read? [INFO] [stderr] [INFO] [stderr] warning: value assigned to `i_y` is never read [INFO] [stderr] --> src/algorithm/word_search_ii.rs:176:13 [INFO] [stderr] | [INFO] [stderr] 176 | let mut i_y = 0; [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = help: maybe it is overwritten before being read? [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/algorithm/add_two_number.rs:23:13 [INFO] [stderr] | [INFO] [stderr] 23 | let mut walker = &l1; [INFO] [stderr] | ----^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_mut)]` on by default [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/algorithm/add_two_number.rs:24:13 [INFO] [stderr] | [INFO] [stderr] 24 | let mut walker2 = &l2; [INFO] [stderr] | ----^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/algorithm/add_two_number.rs:26:13 [INFO] [stderr] | [INFO] [stderr] 26 | let mut pre: i32 = 0; [INFO] [stderr] | ----^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/algorithm/middle_number.rs:34:13 [INFO] [stderr] | [INFO] [stderr] 34 | let mut i_nums = nums; [INFO] [stderr] | ----^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/algorithm/fraction_to_recurring_decimal.rs:25:18 [INFO] [stderr] | [INFO] [stderr] 25 | let (mut i_ary, sign) = Solution::i_fraction_to_decimal((numerator * 10) as u64, denominator as u64); [INFO] [stderr] | ----^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/algorithm/fraction_to_recurring_decimal.rs:40:22 [INFO] [stderr] | [INFO] [stderr] 40 | let (mut i_ary, sign) = Solution::i_fraction_to_decimal((remain * 10) as u64, denominator as u64); [INFO] [stderr] | ----^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/algorithm/fraction_to_recurring_decimal.rs:54:48 [INFO] [stderr] | [INFO] [stderr] 54 | pub fn i_fraction_to_decimal(mut one: u64, mut two: u64) -> (Vec<(u64, u64)>, Option) { [INFO] [stderr] | ----^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/algorithm/fraction_to_recurring_decimal.rs:57:13 [INFO] [stderr] | [INFO] [stderr] 57 | let mut index: Option = None; [INFO] [stderr] | ----^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/algorithm/word_search_ii.rs:165:46 [INFO] [stderr] | [INFO] [stderr] 165 | pub fn find_words(board: Vec>, mut words: Vec) -> Vec { [INFO] [stderr] | ----^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/problem/mod.rs:6:9 [INFO] [stderr] | [INFO] [stderr] 6 | let mut iter = SelfIter { [INFO] [stderr] | ----^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: method is never used: `new` [INFO] [stderr] --> src/algorithm/rotate_list.rs:12:3 [INFO] [stderr] | [INFO] [stderr] 12 | fn new(val: i32) -> Self { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: method is never used: `new` [INFO] [stderr] --> src/algorithm/middle_of_the_linked_list.rs:15:3 [INFO] [stderr] | [INFO] [stderr] 15 | fn new(val: i32) -> Self { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: comparison is useless due to type limits [INFO] [stderr] --> src/algorithm/word_search.rs:42:50 [INFO] [stderr] | [INFO] [stderr] 42 | let new_ary = ary.iter().filter(|&item| {item.0 >= 0 && item.1 >= 0 && item.0 < max_x && item.1 < max_y}).map(|&x| x).collect(); [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_comparisons)]` on by default [INFO] [stderr] [INFO] [stderr] warning: comparison is useless due to type limits [INFO] [stderr] --> src/algorithm/word_search.rs:42:65 [INFO] [stderr] | [INFO] [stderr] 42 | let new_ary = ary.iter().filter(|&item| {item.0 >= 0 && item.1 >= 0 && item.0 < max_x && item.1 < max_y}).map(|&x| x).collect(); [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: comparison is useless due to type limits [INFO] [stderr] --> src/algorithm/word_search_ii.rs:120:29 [INFO] [stderr] | [INFO] [stderr] 120 | .filter(|&item| item.0 >= 0 && item.1 >= 0 && item.0 < max_x && item.1 < max_y) [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: comparison is useless due to type limits [INFO] [stderr] --> src/algorithm/word_search_ii.rs:120:44 [INFO] [stderr] | [INFO] [stderr] 120 | .filter(|&item| item.0 >= 0 && item.1 >= 0 && item.0 < max_x && item.1 < max_y) [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: 54 warnings emitted [INFO] [stderr] [INFO] [stderr] warning: unused imports: `advantage_shuffle`, `arithmetic_slices`, `array_partition_i`, `asteroid_collision`, `best_time_to_buy_and_sell_stock`, `find_first_and_last_position_of_element_in_sorted_array`, `fraction_to_recurring_decimal`, `group_anagrams`, `heap`, `house_robber_ii`, `house_robber`, `implement_trie_prefix_tree`, `lru`, `merge_intervals`, `middle_number`, `middle_of_the_linked_list`, `most_long_str`, `most_water`, `receive_water`, `search_in_rotated_sorted_array`, `simplify_path`, `sort_colors`, `submissions`, `word_search`, `zigzag_conversion` [INFO] [stderr] --> src/main.rs:3:5 [INFO] [stderr] | [INFO] [stderr] 3 | advantage_shuffle, arithmetic_slices, array_partition_i, asteroid_collision, [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ ^^^^^^^^^^^^^^^^^ ^^^^^^^^^^^^^^^^^ ^^^^^^^^^^^^^^^^^^ [INFO] [stderr] 4 | best_time_to_buy_and_sell_stock, find_first_and_last_position_of_element_in_sorted_array, [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] 5 | fraction_to_recurring_decimal, group_anagrams, heap, house_robber, house_robber_ii, [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ ^^^^^^^^^^^^^^ ^^^^ ^^^^^^^^^^^^ ^^^^^^^^^^^^^^^ [INFO] [stderr] 6 | implement_trie_prefix_tree, lru, merge_intervals, middle_number, middle_of_the_linked_list, [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ ^^^ ^^^^^^^^^^^^^^^ ^^^^^^^^^^^^^ ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] 7 | most_long_str, most_water, receive_water, search_in_rotated_sorted_array, simplify_path, [INFO] [stderr] | ^^^^^^^^^^^^^ ^^^^^^^^^^ ^^^^^^^^^^^^^ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ ^^^^^^^^^^^^^ [INFO] [stderr] 8 | sort_colors, submissions, word_search, word_search_ii, zigzag_conversion, [INFO] [stderr] | ^^^^^^^^^^^ ^^^^^^^^^^^ ^^^^^^^^^^^ ^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `point24::problem` [INFO] [stderr] --> src/main.rs:10:5 [INFO] [stderr] | [INFO] [stderr] 10 | use point24::problem; [INFO] [stderr] | ^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:172:9 [INFO] [stderr] | [INFO] [stderr] 172 | let mut board = vec![ [INFO] [stderr] | ----^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_mut)]` on by default [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:181:9 [INFO] [stderr] | [INFO] [stderr] 181 | let mut strs = vec!["aaab", "aaa"]; [INFO] [stderr] | ----^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `Person` [INFO] [stderr] --> src/main.rs:12:8 [INFO] [stderr] | [INFO] [stderr] 12 | struct Person { [INFO] [stderr] | ^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: method is never used: `say` [INFO] [stderr] --> src/main.rs:18:5 [INFO] [stderr] | [INFO] [stderr] 18 | fn say() { [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `say_name` [INFO] [stderr] --> src/main.rs:24:5 [INFO] [stderr] | [INFO] [stderr] 24 | fn say_name() { [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: 7 warnings emitted [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 4.74s [INFO] running `"docker" "inspect" "e241ee4bf64ce858dea5455609de6edc02b7d5fadc3aea1946a981f674271d94"` [INFO] running `"docker" "rm" "-f" "e241ee4bf64ce858dea5455609de6edc02b7d5fadc3aea1946a981f674271d94"` [INFO] [stdout] e241ee4bf64ce858dea5455609de6edc02b7d5fadc3aea1946a981f674271d94 [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.44.0" "test" "--frozen" "--no-run"` [INFO] [stdout] 01cdd0dd258f36b85a5d41fa498c84d44a0ec07be97a1f47f0376d93c6d797b2 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `"docker" "start" "-a" "01cdd0dd258f36b85a5d41fa498c84d44a0ec07be97a1f47f0376d93c6d797b2"` [INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted [INFO] [stderr] Compiling point24 v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] warning: unused import: `std::str::FromStr` [INFO] [stderr] --> src/algorithm/lru.rs:7:5 [INFO] [stderr] | [INFO] [stderr] 7 | use std::str::FromStr; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused imports: `thread`, `time` [INFO] [stderr] --> src/algorithm/lru.rs:8:11 [INFO] [stderr] | [INFO] [stderr] 8 | use std::{thread, time}; [INFO] [stderr] | ^^^^^^ ^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::slice::Iter` [INFO] [stderr] --> src/algorithm/permutation_sequence.rs:2:5 [INFO] [stderr] | [INFO] [stderr] 2 | use std::slice::Iter; [INFO] [stderr] | ^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::ops::Range` [INFO] [stderr] --> src/algorithm/permutation_sequence.rs:4:5 [INFO] [stderr] | [INFO] [stderr] 4 | use std::ops::Range; [INFO] [stderr] | ^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::iter::Enumerate` [INFO] [stderr] --> src/algorithm/permutation_sequence.rs:5:5 [INFO] [stderr] | [INFO] [stderr] 5 | use std::iter::Enumerate; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::vec::Vec` [INFO] [stderr] --> src/algorithm/rotate_list.rs:1:5 [INFO] [stderr] | [INFO] [stderr] 1 | use std::vec::Vec; [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::ops::Deref` [INFO] [stderr] --> src/algorithm/implement_trie_prefix_tree.rs:5:5 [INFO] [stderr] | [INFO] [stderr] 5 | use std::ops::Deref; [INFO] [stderr] | ^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::collections::VecDeque` [INFO] [stderr] --> src/algorithm/group_anagrams.rs:3:5 [INFO] [stderr] | [INFO] [stderr] 3 | use std::collections::VecDeque; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::char` [INFO] [stderr] --> src/algorithm/group_anagrams.rs:6:5 [INFO] [stderr] | [INFO] [stderr] 6 | use std::char; [INFO] [stderr] | ^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::collections::VecDeque` [INFO] [stderr] --> src/algorithm/rotate_image.rs:3:5 [INFO] [stderr] | [INFO] [stderr] 3 | use std::collections::VecDeque; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::collections::hash_map::Entry` [INFO] [stderr] --> src/algorithm/rotate_image.rs:4:5 [INFO] [stderr] | [INFO] [stderr] 4 | use std::collections::hash_map::Entry; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::collections::HashMap` [INFO] [stderr] --> src/algorithm/rotate_image.rs:5:5 [INFO] [stderr] | [INFO] [stderr] 5 | use std::collections::HashMap; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::ops::Range` [INFO] [stderr] --> src/algorithm/rotate_image.rs:6:5 [INFO] [stderr] | [INFO] [stderr] 6 | use std::ops::Range; [INFO] [stderr] | ^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::char` [INFO] [stderr] --> src/algorithm/rotate_image.rs:7:5 [INFO] [stderr] | [INFO] [stderr] 7 | use std::char; [INFO] [stderr] | ^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::iter::Iterator` [INFO] [stderr] --> src/algorithm/sort_colors.rs:1:5 [INFO] [stderr] | [INFO] [stderr] 1 | use std::iter::Iterator; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::collections::VecDeque` [INFO] [stderr] --> src/algorithm/sort_colors.rs:3:5 [INFO] [stderr] | [INFO] [stderr] 3 | use std::collections::VecDeque; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::collections::VecDeque` [INFO] [stderr] --> src/algorithm/arithmetic_slices.rs:3:5 [INFO] [stderr] | [INFO] [stderr] 3 | use std::collections::VecDeque; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::str::Chars` [INFO] [stderr] --> src/algorithm/zigzag_conversion.rs:3:5 [INFO] [stderr] | [INFO] [stderr] 3 | use std::str::Chars; [INFO] [stderr] | ^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::cell::RefCell` [INFO] [stderr] --> src/algorithm/word_search.rs:1:5 [INFO] [stderr] | [INFO] [stderr] 1 | use std::cell::RefCell; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::collections::HashMap` [INFO] [stderr] --> src/algorithm/word_search.rs:2:5 [INFO] [stderr] | [INFO] [stderr] 2 | use std::collections::HashMap; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::mem::drop` [INFO] [stderr] --> src/algorithm/word_search.rs:4:5 [INFO] [stderr] | [INFO] [stderr] 4 | use std::mem::drop; [INFO] [stderr] | ^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::rc::Rc` [INFO] [stderr] --> src/algorithm/word_search.rs:5:5 [INFO] [stderr] | [INFO] [stderr] 5 | use std::rc::Rc; [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::rc::Weak` [INFO] [stderr] --> src/algorithm/word_search.rs:6:5 [INFO] [stderr] | [INFO] [stderr] 6 | use std::rc::Weak; [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::str::FromStr` [INFO] [stderr] --> src/algorithm/word_search.rs:8:5 [INFO] [stderr] | [INFO] [stderr] 8 | use std::str::FromStr; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused imports: `thread`, `time` [INFO] [stderr] --> src/algorithm/word_search.rs:11:11 [INFO] [stderr] | [INFO] [stderr] 11 | use std::{thread, time}; [INFO] [stderr] | ^^^^^^ ^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::mem::drop` [INFO] [stderr] --> src/algorithm/word_search_ii.rs:8:5 [INFO] [stderr] | [INFO] [stderr] 8 | use std::mem::drop; [INFO] [stderr] | ^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::rc::Weak` [INFO] [stderr] --> src/algorithm/word_search_ii.rs:10:5 [INFO] [stderr] | [INFO] [stderr] 10 | use std::rc::Weak; [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::str::FromStr` [INFO] [stderr] --> src/algorithm/word_search_ii.rs:11:5 [INFO] [stderr] | [INFO] [stderr] 11 | use std::str::FromStr; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused imports: `thread`, `time` [INFO] [stderr] --> src/algorithm/word_search_ii.rs:13:11 [INFO] [stderr] | [INFO] [stderr] 13 | use std::{thread, time}; [INFO] [stderr] | ^^^^^^ ^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::iter::Iterator` [INFO] [stderr] --> src/algorithm/lru.rs:3:5 [INFO] [stderr] | [INFO] [stderr] 3 | use std::iter::Iterator; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused variable: `pre` [INFO] [stderr] --> src/algorithm/add_two_number.rs:26:13 [INFO] [stderr] | [INFO] [stderr] 26 | let mut pre: i32 = 0; [INFO] [stderr] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_pre` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `data` [INFO] [stderr] --> src/algorithm/lru.rs:44:18 [INFO] [stderr] | [INFO] [stderr] 44 | Some(data) => {} [INFO] [stderr] | ^^^^ help: if this is intentional, prefix it with an underscore: `_data` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `val` [INFO] [stderr] --> src/algorithm/advantage_shuffle.rs:8:37 [INFO] [stderr] | [INFO] [stderr] 8 | if let Some((index, val)) = a.iter().enumerate().find(|item| item.1 > x) { [INFO] [stderr] | ^^^ help: if this is intentional, prefix it with an underscore: `_val` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `index` [INFO] [stderr] --> src/algorithm/fraction_to_recurring_decimal.rs:57:13 [INFO] [stderr] | [INFO] [stderr] 57 | let mut index: Option = None; [INFO] [stderr] | ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_index` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `max_x` [INFO] [stderr] --> src/algorithm/word_search.rs:56:32 [INFO] [stderr] | [INFO] [stderr] 56 | fn new(x: usize, y: usize, max_x: usize, max_y: usize) -> Node { [INFO] [stderr] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_max_x` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `max_y` [INFO] [stderr] --> src/algorithm/word_search.rs:56:46 [INFO] [stderr] | [INFO] [stderr] 56 | fn new(x: usize, y: usize, max_x: usize, max_y: usize) -> Node { [INFO] [stderr] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_max_y` [INFO] [stderr] [INFO] [stderr] warning: value assigned to `i_y` is never read [INFO] [stderr] --> src/algorithm/word_search.rs:100:13 [INFO] [stderr] | [INFO] [stderr] 100 | let mut i_y = 0; [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_assignments)]` on by default [INFO] [stderr] = help: maybe it is overwritten before being read? [INFO] [stderr] [INFO] [stderr] warning: value assigned to `i_y` is never read [INFO] [stderr] --> src/algorithm/word_search_ii.rs:176:13 [INFO] [stderr] | [INFO] [stderr] 176 | let mut i_y = 0; [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = help: maybe it is overwritten before being read? [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/algorithm/add_two_number.rs:23:13 [INFO] [stderr] | [INFO] [stderr] 23 | let mut walker = &l1; [INFO] [stderr] | ----^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_mut)]` on by default [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/algorithm/add_two_number.rs:24:13 [INFO] [stderr] | [INFO] [stderr] 24 | let mut walker2 = &l2; [INFO] [stderr] | ----^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/algorithm/add_two_number.rs:26:13 [INFO] [stderr] | [INFO] [stderr] 26 | let mut pre: i32 = 0; [INFO] [stderr] | ----^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/algorithm/middle_number.rs:34:13 [INFO] [stderr] | [INFO] [stderr] 34 | let mut i_nums = nums; [INFO] [stderr] | ----^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/algorithm/fraction_to_recurring_decimal.rs:25:18 [INFO] [stderr] | [INFO] [stderr] 25 | let (mut i_ary, sign) = Solution::i_fraction_to_decimal((numerator * 10) as u64, denominator as u64); [INFO] [stderr] | ----^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/algorithm/fraction_to_recurring_decimal.rs:40:22 [INFO] [stderr] | [INFO] [stderr] 40 | let (mut i_ary, sign) = Solution::i_fraction_to_decimal((remain * 10) as u64, denominator as u64); [INFO] [stderr] | ----^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/algorithm/fraction_to_recurring_decimal.rs:54:48 [INFO] [stderr] | [INFO] [stderr] 54 | pub fn i_fraction_to_decimal(mut one: u64, mut two: u64) -> (Vec<(u64, u64)>, Option) { [INFO] [stderr] | ----^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/algorithm/fraction_to_recurring_decimal.rs:57:13 [INFO] [stderr] | [INFO] [stderr] 57 | let mut index: Option = None; [INFO] [stderr] | ----^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/algorithm/word_search_ii.rs:165:46 [INFO] [stderr] | [INFO] [stderr] 165 | pub fn find_words(board: Vec>, mut words: Vec) -> Vec { [INFO] [stderr] | ----^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/problem/mod.rs:6:9 [INFO] [stderr] | [INFO] [stderr] 6 | let mut iter = SelfIter { [INFO] [stderr] | ----^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: method is never used: `new` [INFO] [stderr] --> src/algorithm/rotate_list.rs:12:3 [INFO] [stderr] | [INFO] [stderr] 12 | fn new(val: i32) -> Self { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: method is never used: `new` [INFO] [stderr] --> src/algorithm/middle_of_the_linked_list.rs:15:3 [INFO] [stderr] | [INFO] [stderr] 15 | fn new(val: i32) -> Self { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: comparison is useless due to type limits [INFO] [stderr] --> src/algorithm/word_search.rs:42:50 [INFO] [stderr] | [INFO] [stderr] 42 | let new_ary = ary.iter().filter(|&item| {item.0 >= 0 && item.1 >= 0 && item.0 < max_x && item.1 < max_y}).map(|&x| x).collect(); [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_comparisons)]` on by default [INFO] [stderr] [INFO] [stderr] warning: comparison is useless due to type limits [INFO] [stderr] --> src/algorithm/word_search.rs:42:65 [INFO] [stderr] | [INFO] [stderr] 42 | let new_ary = ary.iter().filter(|&item| {item.0 >= 0 && item.1 >= 0 && item.0 < max_x && item.1 < max_y}).map(|&x| x).collect(); [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: comparison is useless due to type limits [INFO] [stderr] --> src/algorithm/word_search_ii.rs:120:29 [INFO] [stderr] | [INFO] [stderr] 120 | .filter(|&item| item.0 >= 0 && item.1 >= 0 && item.0 < max_x && item.1 < max_y) [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: comparison is useless due to type limits [INFO] [stderr] --> src/algorithm/word_search_ii.rs:120:44 [INFO] [stderr] | [INFO] [stderr] 120 | .filter(|&item| item.0 >= 0 && item.1 >= 0 && item.0 < max_x && item.1 < max_y) [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: 54 warnings emitted [INFO] [stderr] [INFO] [stderr] warning: unused imports: `advantage_shuffle`, `arithmetic_slices`, `array_partition_i`, `asteroid_collision`, `best_time_to_buy_and_sell_stock`, `find_first_and_last_position_of_element_in_sorted_array`, `fraction_to_recurring_decimal`, `group_anagrams`, `heap`, `house_robber_ii`, `house_robber`, `implement_trie_prefix_tree`, `lru`, `merge_intervals`, `middle_number`, `middle_of_the_linked_list`, `most_long_str`, `most_water`, `receive_water`, `search_in_rotated_sorted_array`, `simplify_path`, `sort_colors`, `submissions`, `word_search`, `zigzag_conversion` [INFO] [stderr] --> src/main.rs:3:5 [INFO] [stderr] | [INFO] [stderr] 3 | advantage_shuffle, arithmetic_slices, array_partition_i, asteroid_collision, [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ ^^^^^^^^^^^^^^^^^ ^^^^^^^^^^^^^^^^^ ^^^^^^^^^^^^^^^^^^ [INFO] [stderr] 4 | best_time_to_buy_and_sell_stock, find_first_and_last_position_of_element_in_sorted_array, [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] 5 | fraction_to_recurring_decimal, group_anagrams, heap, house_robber, house_robber_ii, [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ ^^^^^^^^^^^^^^ ^^^^ ^^^^^^^^^^^^ ^^^^^^^^^^^^^^^ [INFO] [stderr] 6 | implement_trie_prefix_tree, lru, merge_intervals, middle_number, middle_of_the_linked_list, [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ ^^^ ^^^^^^^^^^^^^^^ ^^^^^^^^^^^^^ ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] 7 | most_long_str, most_water, receive_water, search_in_rotated_sorted_array, simplify_path, [INFO] [stderr] | ^^^^^^^^^^^^^ ^^^^^^^^^^ ^^^^^^^^^^^^^ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ ^^^^^^^^^^^^^ [INFO] [stderr] 8 | sort_colors, submissions, word_search, word_search_ii, zigzag_conversion, [INFO] [stderr] | ^^^^^^^^^^^ ^^^^^^^^^^^ ^^^^^^^^^^^ ^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `point24::problem` [INFO] [stderr] --> src/main.rs:10:5 [INFO] [stderr] | [INFO] [stderr] 10 | use point24::problem; [INFO] [stderr] | ^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:172:9 [INFO] [stderr] | [INFO] [stderr] 172 | let mut board = vec![ [INFO] [stderr] | ----^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_mut)]` on by default [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:181:9 [INFO] [stderr] | [INFO] [stderr] 181 | let mut strs = vec!["aaab", "aaa"]; [INFO] [stderr] | ----^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `Person` [INFO] [stderr] --> src/main.rs:12:8 [INFO] [stderr] | [INFO] [stderr] 12 | struct Person { [INFO] [stderr] | ^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: method is never used: `say` [INFO] [stderr] --> src/main.rs:18:5 [INFO] [stderr] | [INFO] [stderr] 18 | fn say() { [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `say_name` [INFO] [stderr] --> src/main.rs:24:5 [INFO] [stderr] | [INFO] [stderr] 24 | fn say_name() { [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::str::FromStr` [INFO] [stderr] --> src/algorithm/lru.rs:7:5 [INFO] [stderr] | [INFO] [stderr] 7 | use std::str::FromStr; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused imports: `thread`, `time` [INFO] [stderr] --> src/algorithm/lru.rs:8:11 [INFO] [stderr] | [INFO] [stderr] 8 | use std::{thread, time}; [INFO] [stderr] | ^^^^^^ ^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::slice::Iter` [INFO] [stderr] --> src/algorithm/permutation_sequence.rs:2:5 [INFO] [stderr] | [INFO] [stderr] 2 | use std::slice::Iter; [INFO] [stderr] | ^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::ops::Range` [INFO] [stderr] --> src/algorithm/permutation_sequence.rs:4:5 [INFO] [stderr] | [INFO] [stderr] 4 | use std::ops::Range; [INFO] [stderr] | ^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::iter::Enumerate` [INFO] [stderr] --> src/algorithm/permutation_sequence.rs:5:5 [INFO] [stderr] | [INFO] [stderr] 5 | use std::iter::Enumerate; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::vec::Vec` [INFO] [stderr] --> src/algorithm/rotate_list.rs:1:5 [INFO] [stderr] | [INFO] [stderr] 1 | use std::vec::Vec; [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::ops::Deref` [INFO] [stderr] --> src/algorithm/implement_trie_prefix_tree.rs:5:5 [INFO] [stderr] | [INFO] [stderr] 5 | use std::ops::Deref; [INFO] [stderr] | ^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::collections::VecDeque` [INFO] [stderr] --> src/algorithm/group_anagrams.rs:3:5 [INFO] [stderr] | [INFO] [stderr] 3 | use std::collections::VecDeque; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::char` [INFO] [stderr] --> src/algorithm/group_anagrams.rs:6:5 [INFO] [stderr] | [INFO] [stderr] 6 | use std::char; [INFO] [stderr] | ^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::collections::VecDeque` [INFO] [stderr] --> src/algorithm/rotate_image.rs:3:5 [INFO] [stderr] | [INFO] [stderr] 3 | use std::collections::VecDeque; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::collections::hash_map::Entry` [INFO] [stderr] --> src/algorithm/rotate_image.rs:4:5 [INFO] [stderr] | [INFO] [stderr] 4 | use std::collections::hash_map::Entry; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::collections::HashMap` [INFO] [stderr] --> src/algorithm/rotate_image.rs:5:5 [INFO] [stderr] | [INFO] [stderr] 5 | use std::collections::HashMap; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::ops::Range` [INFO] [stderr] --> src/algorithm/rotate_image.rs:6:5 [INFO] [stderr] | [INFO] [stderr] 6 | use std::ops::Range; [INFO] [stderr] | ^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::char` [INFO] [stderr] --> src/algorithm/rotate_image.rs:7:5 [INFO] [stderr] | [INFO] [stderr] 7 | use std::char; [INFO] [stderr] | ^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::iter::Iterator` [INFO] [stderr] --> src/algorithm/sort_colors.rs:1:5 [INFO] [stderr] | [INFO] [stderr] 1 | use std::iter::Iterator; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::collections::VecDeque` [INFO] [stderr] --> src/algorithm/sort_colors.rs:3:5 [INFO] [stderr] | [INFO] [stderr] 3 | use std::collections::VecDeque; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::collections::VecDeque` [INFO] [stderr] --> src/algorithm/arithmetic_slices.rs:3:5 [INFO] [stderr] | [INFO] [stderr] 3 | use std::collections::VecDeque; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::str::Chars` [INFO] [stderr] --> src/algorithm/zigzag_conversion.rs:3:5 [INFO] [stderr] | [INFO] [stderr] 3 | use std::str::Chars; [INFO] [stderr] | ^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::cell::RefCell` [INFO] [stderr] --> src/algorithm/word_search.rs:1:5 [INFO] [stderr] | [INFO] [stderr] 1 | use std::cell::RefCell; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::collections::HashMap` [INFO] [stderr] --> src/algorithm/word_search.rs:2:5 [INFO] [stderr] | [INFO] [stderr] 2 | use std::collections::HashMap; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::mem::drop` [INFO] [stderr] --> src/algorithm/word_search.rs:4:5 [INFO] [stderr] | [INFO] [stderr] 4 | use std::mem::drop; [INFO] [stderr] | ^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::rc::Rc` [INFO] [stderr] --> src/algorithm/word_search.rs:5:5 [INFO] [stderr] | [INFO] [stderr] 5 | use std::rc::Rc; [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::rc::Weak` [INFO] [stderr] --> src/algorithm/word_search.rs:6:5 [INFO] [stderr] | [INFO] [stderr] 6 | use std::rc::Weak; [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::str::FromStr` [INFO] [stderr] --> src/algorithm/word_search.rs:8:5 [INFO] [stderr] | [INFO] [stderr] 8 | use std::str::FromStr; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused imports: `thread`, `time` [INFO] [stderr] --> src/algorithm/word_search.rs:11:11 [INFO] [stderr] | [INFO] [stderr] 11 | use std::{thread, time}; [INFO] [stderr] | ^^^^^^ ^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::mem::drop` [INFO] [stderr] --> src/algorithm/word_search_ii.rs:8:5 [INFO] [stderr] | [INFO] [stderr] 8 | use std::mem::drop; [INFO] [stderr] | ^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::rc::Weak` [INFO] [stderr] --> src/algorithm/word_search_ii.rs:10:5 [INFO] [stderr] | [INFO] [stderr] 10 | use std::rc::Weak; [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::str::FromStr` [INFO] [stderr] --> src/algorithm/word_search_ii.rs:11:5 [INFO] [stderr] | [INFO] [stderr] 11 | use std::str::FromStr; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused imports: `thread`, `time` [INFO] [stderr] --> src/algorithm/word_search_ii.rs:13:11 [INFO] [stderr] | [INFO] [stderr] 13 | use std::{thread, time}; [INFO] [stderr] | ^^^^^^ ^^^^ [INFO] [stderr] [INFO] [stderr] warning: 7 warnings emitted [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::iter::Iterator` [INFO] [stderr] --> src/algorithm/lru.rs:3:5 [INFO] [stderr] | [INFO] [stderr] 3 | use std::iter::Iterator; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused variable: `pre` [INFO] [stderr] --> src/algorithm/add_two_number.rs:26:13 [INFO] [stderr] | [INFO] [stderr] 26 | let mut pre: i32 = 0; [INFO] [stderr] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_pre` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `data` [INFO] [stderr] --> src/algorithm/lru.rs:44:18 [INFO] [stderr] | [INFO] [stderr] 44 | Some(data) => {} [INFO] [stderr] | ^^^^ help: if this is intentional, prefix it with an underscore: `_data` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `val` [INFO] [stderr] --> src/algorithm/advantage_shuffle.rs:8:37 [INFO] [stderr] | [INFO] [stderr] 8 | if let Some((index, val)) = a.iter().enumerate().find(|item| item.1 > x) { [INFO] [stderr] | ^^^ help: if this is intentional, prefix it with an underscore: `_val` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `index` [INFO] [stderr] --> src/algorithm/fraction_to_recurring_decimal.rs:57:13 [INFO] [stderr] | [INFO] [stderr] 57 | let mut index: Option = None; [INFO] [stderr] | ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_index` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `max_x` [INFO] [stderr] --> src/algorithm/word_search.rs:56:32 [INFO] [stderr] | [INFO] [stderr] 56 | fn new(x: usize, y: usize, max_x: usize, max_y: usize) -> Node { [INFO] [stderr] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_max_x` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `max_y` [INFO] [stderr] --> src/algorithm/word_search.rs:56:46 [INFO] [stderr] | [INFO] [stderr] 56 | fn new(x: usize, y: usize, max_x: usize, max_y: usize) -> Node { [INFO] [stderr] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_max_y` [INFO] [stderr] [INFO] [stderr] warning: value assigned to `i_y` is never read [INFO] [stderr] --> src/algorithm/word_search.rs:100:13 [INFO] [stderr] | [INFO] [stderr] 100 | let mut i_y = 0; [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_assignments)]` on by default [INFO] [stderr] = help: maybe it is overwritten before being read? [INFO] [stderr] [INFO] [stderr] warning: value assigned to `i_y` is never read [INFO] [stderr] --> src/algorithm/word_search_ii.rs:176:13 [INFO] [stderr] | [INFO] [stderr] 176 | let mut i_y = 0; [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = help: maybe it is overwritten before being read? [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/algorithm/add_two_number.rs:23:13 [INFO] [stderr] | [INFO] [stderr] 23 | let mut walker = &l1; [INFO] [stderr] | ----^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_mut)]` on by default [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/algorithm/add_two_number.rs:24:13 [INFO] [stderr] | [INFO] [stderr] 24 | let mut walker2 = &l2; [INFO] [stderr] | ----^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/algorithm/add_two_number.rs:26:13 [INFO] [stderr] | [INFO] [stderr] 26 | let mut pre: i32 = 0; [INFO] [stderr] | ----^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/algorithm/middle_number.rs:34:13 [INFO] [stderr] | [INFO] [stderr] 34 | let mut i_nums = nums; [INFO] [stderr] | ----^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/algorithm/rotate_list.rs:29:13 [INFO] [stderr] | [INFO] [stderr] 29 | let mut ary = vec![1,2,3,4,5]; [INFO] [stderr] | ----^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/algorithm/fraction_to_recurring_decimal.rs:25:18 [INFO] [stderr] | [INFO] [stderr] 25 | let (mut i_ary, sign) = Solution::i_fraction_to_decimal((numerator * 10) as u64, denominator as u64); [INFO] [stderr] | ----^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/algorithm/fraction_to_recurring_decimal.rs:40:22 [INFO] [stderr] | [INFO] [stderr] 40 | let (mut i_ary, sign) = Solution::i_fraction_to_decimal((remain * 10) as u64, denominator as u64); [INFO] [stderr] | ----^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/algorithm/fraction_to_recurring_decimal.rs:54:48 [INFO] [stderr] | [INFO] [stderr] 54 | pub fn i_fraction_to_decimal(mut one: u64, mut two: u64) -> (Vec<(u64, u64)>, Option) { [INFO] [stderr] | ----^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/algorithm/fraction_to_recurring_decimal.rs:57:13 [INFO] [stderr] | [INFO] [stderr] 57 | let mut index: Option = None; [INFO] [stderr] | ----^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/algorithm/word_search_ii.rs:165:46 [INFO] [stderr] | [INFO] [stderr] 165 | pub fn find_words(board: Vec>, mut words: Vec) -> Vec { [INFO] [stderr] | ----^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/problem/mod.rs:6:9 [INFO] [stderr] | [INFO] [stderr] 6 | let mut iter = SelfIter { [INFO] [stderr] | ----^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: method is never used: `new` [INFO] [stderr] --> src/algorithm/middle_of_the_linked_list.rs:15:3 [INFO] [stderr] | [INFO] [stderr] 15 | fn new(val: i32) -> Self { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: comparison is useless due to type limits [INFO] [stderr] --> src/algorithm/word_search.rs:42:50 [INFO] [stderr] | [INFO] [stderr] 42 | let new_ary = ary.iter().filter(|&item| {item.0 >= 0 && item.1 >= 0 && item.0 < max_x && item.1 < max_y}).map(|&x| x).collect(); [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_comparisons)]` on by default [INFO] [stderr] [INFO] [stderr] warning: comparison is useless due to type limits [INFO] [stderr] --> src/algorithm/word_search.rs:42:65 [INFO] [stderr] | [INFO] [stderr] 42 | let new_ary = ary.iter().filter(|&item| {item.0 >= 0 && item.1 >= 0 && item.0 < max_x && item.1 < max_y}).map(|&x| x).collect(); [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: comparison is useless due to type limits [INFO] [stderr] --> src/algorithm/word_search_ii.rs:120:29 [INFO] [stderr] | [INFO] [stderr] 120 | .filter(|&item| item.0 >= 0 && item.1 >= 0 && item.0 < max_x && item.1 < max_y) [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: comparison is useless due to type limits [INFO] [stderr] --> src/algorithm/word_search_ii.rs:120:44 [INFO] [stderr] | [INFO] [stderr] 120 | .filter(|&item| item.0 >= 0 && item.1 >= 0 && item.0 < max_x && item.1 < max_y) [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: 54 warnings emitted [INFO] [stderr] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 2.03s [INFO] running `"docker" "inspect" "01cdd0dd258f36b85a5d41fa498c84d44a0ec07be97a1f47f0376d93c6d797b2"` [INFO] running `"docker" "rm" "-f" "01cdd0dd258f36b85a5d41fa498c84d44a0ec07be97a1f47f0376d93c6d797b2"` [INFO] [stdout] 01cdd0dd258f36b85a5d41fa498c84d44a0ec07be97a1f47f0376d93c6d797b2 [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.44.0" "test" "--frozen"` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] b44743102d90669b8c679d65323511e658ac0395c23786710ce1497bf08d0c3d [INFO] running `"docker" "start" "-a" "b44743102d90669b8c679d65323511e658ac0395c23786710ce1497bf08d0c3d"` [INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted [INFO] [stderr] warning: unused import: `std::str::FromStr` [INFO] [stderr] --> src/algorithm/lru.rs:7:5 [INFO] [stderr] | [INFO] [stderr] 7 | use std::str::FromStr; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused imports: `thread`, `time` [INFO] [stderr] --> src/algorithm/lru.rs:8:11 [INFO] [stderr] | [INFO] [stderr] 8 | use std::{thread, time}; [INFO] [stderr] | ^^^^^^ ^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::slice::Iter` [INFO] [stderr] --> src/algorithm/permutation_sequence.rs:2:5 [INFO] [stderr] | [INFO] [stderr] 2 | use std::slice::Iter; [INFO] [stderr] | ^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::ops::Range` [INFO] [stderr] --> src/algorithm/permutation_sequence.rs:4:5 [INFO] [stderr] | [INFO] [stderr] 4 | use std::ops::Range; [INFO] [stderr] | ^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::iter::Enumerate` [INFO] [stderr] --> src/algorithm/permutation_sequence.rs:5:5 [INFO] [stderr] | [INFO] [stderr] 5 | use std::iter::Enumerate; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::vec::Vec` [INFO] [stderr] --> src/algorithm/rotate_list.rs:1:5 [INFO] [stderr] | [INFO] [stderr] 1 | use std::vec::Vec; [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::ops::Deref` [INFO] [stderr] --> src/algorithm/implement_trie_prefix_tree.rs:5:5 [INFO] [stderr] | [INFO] [stderr] 5 | use std::ops::Deref; [INFO] [stderr] | ^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::collections::VecDeque` [INFO] [stderr] --> src/algorithm/group_anagrams.rs:3:5 [INFO] [stderr] | [INFO] [stderr] 3 | use std::collections::VecDeque; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::char` [INFO] [stderr] --> src/algorithm/group_anagrams.rs:6:5 [INFO] [stderr] | [INFO] [stderr] 6 | use std::char; [INFO] [stderr] | ^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::collections::VecDeque` [INFO] [stderr] --> src/algorithm/rotate_image.rs:3:5 [INFO] [stderr] | [INFO] [stderr] 3 | use std::collections::VecDeque; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::collections::hash_map::Entry` [INFO] [stderr] --> src/algorithm/rotate_image.rs:4:5 [INFO] [stderr] | [INFO] [stderr] 4 | use std::collections::hash_map::Entry; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::collections::HashMap` [INFO] [stderr] --> src/algorithm/rotate_image.rs:5:5 [INFO] [stderr] | [INFO] [stderr] 5 | use std::collections::HashMap; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::ops::Range` [INFO] [stderr] --> src/algorithm/rotate_image.rs:6:5 [INFO] [stderr] | [INFO] [stderr] 6 | use std::ops::Range; [INFO] [stderr] | ^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::char` [INFO] [stderr] --> src/algorithm/rotate_image.rs:7:5 [INFO] [stderr] | [INFO] [stderr] 7 | use std::char; [INFO] [stderr] | ^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::iter::Iterator` [INFO] [stderr] --> src/algorithm/sort_colors.rs:1:5 [INFO] [stderr] | [INFO] [stderr] 1 | use std::iter::Iterator; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::collections::VecDeque` [INFO] [stderr] --> src/algorithm/sort_colors.rs:3:5 [INFO] [stderr] | [INFO] [stderr] 3 | use std::collections::VecDeque; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::collections::VecDeque` [INFO] [stderr] --> src/algorithm/arithmetic_slices.rs:3:5 [INFO] [stderr] | [INFO] [stderr] 3 | use std::collections::VecDeque; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::str::Chars` [INFO] [stderr] --> src/algorithm/zigzag_conversion.rs:3:5 [INFO] [stderr] | [INFO] [stderr] 3 | use std::str::Chars; [INFO] [stderr] | ^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::cell::RefCell` [INFO] [stderr] --> src/algorithm/word_search.rs:1:5 [INFO] [stderr] | [INFO] [stderr] 1 | use std::cell::RefCell; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::collections::HashMap` [INFO] [stderr] --> src/algorithm/word_search.rs:2:5 [INFO] [stderr] | [INFO] [stderr] 2 | use std::collections::HashMap; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::mem::drop` [INFO] [stderr] --> src/algorithm/word_search.rs:4:5 [INFO] [stderr] | [INFO] [stderr] 4 | use std::mem::drop; [INFO] [stderr] | ^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::rc::Rc` [INFO] [stderr] --> src/algorithm/word_search.rs:5:5 [INFO] [stderr] | [INFO] [stderr] 5 | use std::rc::Rc; [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::rc::Weak` [INFO] [stderr] --> src/algorithm/word_search.rs:6:5 [INFO] [stderr] | [INFO] [stderr] 6 | use std::rc::Weak; [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::str::FromStr` [INFO] [stderr] --> src/algorithm/word_search.rs:8:5 [INFO] [stderr] | [INFO] [stderr] 8 | use std::str::FromStr; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused imports: `thread`, `time` [INFO] [stderr] --> src/algorithm/word_search.rs:11:11 [INFO] [stderr] | [INFO] [stderr] 11 | use std::{thread, time}; [INFO] [stderr] | ^^^^^^ ^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::mem::drop` [INFO] [stderr] --> src/algorithm/word_search_ii.rs:8:5 [INFO] [stderr] | [INFO] [stderr] 8 | use std::mem::drop; [INFO] [stderr] | ^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::rc::Weak` [INFO] [stderr] --> src/algorithm/word_search_ii.rs:10:5 [INFO] [stderr] | [INFO] [stderr] 10 | use std::rc::Weak; [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::str::FromStr` [INFO] [stderr] --> src/algorithm/word_search_ii.rs:11:5 [INFO] [stderr] | [INFO] [stderr] 11 | use std::str::FromStr; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused imports: `thread`, `time` [INFO] [stderr] --> src/algorithm/word_search_ii.rs:13:11 [INFO] [stderr] | [INFO] [stderr] 13 | use std::{thread, time}; [INFO] [stderr] | ^^^^^^ ^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::iter::Iterator` [INFO] [stderr] --> src/algorithm/lru.rs:3:5 [INFO] [stderr] | [INFO] [stderr] 3 | use std::iter::Iterator; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused variable: `pre` [INFO] [stderr] --> src/algorithm/add_two_number.rs:26:13 [INFO] [stderr] | [INFO] [stderr] 26 | let mut pre: i32 = 0; [INFO] [stderr] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_pre` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `data` [INFO] [stderr] --> src/algorithm/lru.rs:44:18 [INFO] [stderr] | [INFO] [stderr] 44 | Some(data) => {} [INFO] [stderr] | ^^^^ help: if this is intentional, prefix it with an underscore: `_data` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `val` [INFO] [stderr] --> src/algorithm/advantage_shuffle.rs:8:37 [INFO] [stderr] | [INFO] [stderr] 8 | if let Some((index, val)) = a.iter().enumerate().find(|item| item.1 > x) { [INFO] [stderr] | ^^^ help: if this is intentional, prefix it with an underscore: `_val` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `index` [INFO] [stderr] --> src/algorithm/fraction_to_recurring_decimal.rs:57:13 [INFO] [stderr] | [INFO] [stderr] 57 | let mut index: Option = None; [INFO] [stderr] | ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_index` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `max_x` [INFO] [stderr] --> src/algorithm/word_search.rs:56:32 [INFO] [stderr] | [INFO] [stderr] 56 | fn new(x: usize, y: usize, max_x: usize, max_y: usize) -> Node { [INFO] [stderr] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_max_x` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `max_y` [INFO] [stderr] --> src/algorithm/word_search.rs:56:46 [INFO] [stderr] | [INFO] [stderr] 56 | fn new(x: usize, y: usize, max_x: usize, max_y: usize) -> Node { [INFO] [stderr] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_max_y` [INFO] [stderr] [INFO] [stderr] warning: value assigned to `i_y` is never read [INFO] [stderr] --> src/algorithm/word_search.rs:100:13 [INFO] [stderr] | [INFO] [stderr] 100 | let mut i_y = 0; [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_assignments)]` on by default [INFO] [stderr] = help: maybe it is overwritten before being read? [INFO] [stderr] [INFO] [stderr] warning: value assigned to `i_y` is never read [INFO] [stderr] --> src/algorithm/word_search_ii.rs:176:13 [INFO] [stderr] | [INFO] [stderr] 176 | let mut i_y = 0; [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = help: maybe it is overwritten before being read? [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/algorithm/add_two_number.rs:23:13 [INFO] [stderr] | [INFO] [stderr] 23 | let mut walker = &l1; [INFO] [stderr] | ----^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_mut)]` on by default [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/algorithm/add_two_number.rs:24:13 [INFO] [stderr] | [INFO] [stderr] 24 | let mut walker2 = &l2; [INFO] [stderr] | ----^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/algorithm/add_two_number.rs:26:13 [INFO] [stderr] | [INFO] [stderr] 26 | let mut pre: i32 = 0; [INFO] [stderr] | ----^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/algorithm/middle_number.rs:34:13 [INFO] [stderr] | [INFO] [stderr] 34 | let mut i_nums = nums; [INFO] [stderr] | ----^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/algorithm/rotate_list.rs:29:13 [INFO] [stderr] | [INFO] [stderr] 29 | let mut ary = vec![1,2,3,4,5]; [INFO] [stderr] | ----^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/algorithm/fraction_to_recurring_decimal.rs:25:18 [INFO] [stderr] | [INFO] [stderr] 25 | let (mut i_ary, sign) = Solution::i_fraction_to_decimal((numerator * 10) as u64, denominator as u64); [INFO] [stderr] | ----^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/algorithm/fraction_to_recurring_decimal.rs:40:22 [INFO] [stderr] | [INFO] [stderr] 40 | let (mut i_ary, sign) = Solution::i_fraction_to_decimal((remain * 10) as u64, denominator as u64); [INFO] [stderr] | ----^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/algorithm/fraction_to_recurring_decimal.rs:54:48 [INFO] [stderr] | [INFO] [stderr] 54 | pub fn i_fraction_to_decimal(mut one: u64, mut two: u64) -> (Vec<(u64, u64)>, Option) { [INFO] [stderr] | ----^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/algorithm/fraction_to_recurring_decimal.rs:57:13 [INFO] [stderr] | [INFO] [stderr] 57 | let mut index: Option = None; [INFO] [stderr] | ----^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/algorithm/word_search_ii.rs:165:46 [INFO] [stderr] | [INFO] [stderr] 165 | pub fn find_words(board: Vec>, mut words: Vec) -> Vec { [INFO] [stderr] | ----^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/problem/mod.rs:6:9 [INFO] [stderr] | [INFO] [stderr] 6 | let mut iter = SelfIter { [INFO] [stderr] | ----^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: method is never used: `new` [INFO] [stderr] --> src/algorithm/middle_of_the_linked_list.rs:15:3 [INFO] [stderr] | [INFO] [stderr] 15 | fn new(val: i32) -> Self { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: comparison is useless due to type limits [INFO] [stderr] --> src/algorithm/word_search.rs:42:50 [INFO] [stderr] | [INFO] [stderr] 42 | let new_ary = ary.iter().filter(|&item| {item.0 >= 0 && item.1 >= 0 && item.0 < max_x && item.1 < max_y}).map(|&x| x).collect(); [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_comparisons)]` on by default [INFO] [stderr] [INFO] [stderr] warning: comparison is useless due to type limits [INFO] [stderr] --> src/algorithm/word_search.rs:42:65 [INFO] [stderr] | [INFO] [stderr] 42 | let new_ary = ary.iter().filter(|&item| {item.0 >= 0 && item.1 >= 0 && item.0 < max_x && item.1 < max_y}).map(|&x| x).collect(); [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: comparison is useless due to type limits [INFO] [stderr] --> src/algorithm/word_search_ii.rs:120:29 [INFO] [stderr] | [INFO] [stderr] 120 | .filter(|&item| item.0 >= 0 && item.1 >= 0 && item.0 < max_x && item.1 < max_y) [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: comparison is useless due to type limits [INFO] [stderr] --> src/algorithm/word_search_ii.rs:120:44 [INFO] [stderr] | [INFO] [stderr] 120 | .filter(|&item| item.0 >= 0 && item.1 >= 0 && item.0 < max_x && item.1 < max_y) [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: 54 warnings emitted [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::str::FromStr` [INFO] [stderr] --> src/algorithm/lru.rs:7:5 [INFO] [stderr] | [INFO] [stderr] 7 | use std::str::FromStr; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused imports: `thread`, `time` [INFO] [stderr] --> src/algorithm/lru.rs:8:11 [INFO] [stderr] | [INFO] [stderr] 8 | use std::{thread, time}; [INFO] [stderr] | ^^^^^^ ^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::slice::Iter` [INFO] [stderr] --> src/algorithm/permutation_sequence.rs:2:5 [INFO] [stderr] | [INFO] [stderr] 2 | use std::slice::Iter; [INFO] [stderr] | ^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::ops::Range` [INFO] [stderr] --> src/algorithm/permutation_sequence.rs:4:5 [INFO] [stderr] | [INFO] [stderr] 4 | use std::ops::Range; [INFO] [stderr] | ^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::iter::Enumerate` [INFO] [stderr] --> src/algorithm/permutation_sequence.rs:5:5 [INFO] [stderr] | [INFO] [stderr] 5 | use std::iter::Enumerate; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::vec::Vec` [INFO] [stderr] --> src/algorithm/rotate_list.rs:1:5 [INFO] [stderr] | [INFO] [stderr] 1 | use std::vec::Vec; [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::ops::Deref` [INFO] [stderr] --> src/algorithm/implement_trie_prefix_tree.rs:5:5 [INFO] [stderr] | [INFO] [stderr] 5 | use std::ops::Deref; [INFO] [stderr] | ^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::collections::VecDeque` [INFO] [stderr] --> src/algorithm/group_anagrams.rs:3:5 [INFO] [stderr] | [INFO] [stderr] 3 | use std::collections::VecDeque; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::char` [INFO] [stderr] --> src/algorithm/group_anagrams.rs:6:5 [INFO] [stderr] | [INFO] [stderr] 6 | use std::char; [INFO] [stderr] | ^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::collections::VecDeque` [INFO] [stderr] --> src/algorithm/rotate_image.rs:3:5 [INFO] [stderr] | [INFO] [stderr] 3 | use std::collections::VecDeque; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::collections::hash_map::Entry` [INFO] [stderr] --> src/algorithm/rotate_image.rs:4:5 [INFO] [stderr] | [INFO] [stderr] 4 | use std::collections::hash_map::Entry; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::collections::HashMap` [INFO] [stderr] --> src/algorithm/rotate_image.rs:5:5 [INFO] [stderr] | [INFO] [stderr] 5 | use std::collections::HashMap; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::ops::Range` [INFO] [stderr] --> src/algorithm/rotate_image.rs:6:5 [INFO] [stderr] | [INFO] [stderr] 6 | use std::ops::Range; [INFO] [stderr] | ^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::char` [INFO] [stderr] --> src/algorithm/rotate_image.rs:7:5 [INFO] [stderr] | [INFO] [stderr] 7 | use std::char; [INFO] [stderr] | ^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::iter::Iterator` [INFO] [stderr] --> src/algorithm/sort_colors.rs:1:5 [INFO] [stderr] | [INFO] [stderr] 1 | use std::iter::Iterator; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::collections::VecDeque` [INFO] [stderr] --> src/algorithm/sort_colors.rs:3:5 [INFO] [stderr] | [INFO] [stderr] 3 | use std::collections::VecDeque; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::collections::VecDeque` [INFO] [stderr] --> src/algorithm/arithmetic_slices.rs:3:5 [INFO] [stderr] | [INFO] [stderr] 3 | use std::collections::VecDeque; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::str::Chars` [INFO] [stderr] --> src/algorithm/zigzag_conversion.rs:3:5 [INFO] [stderr] | [INFO] [stderr] 3 | use std::str::Chars; [INFO] [stderr] | ^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::cell::RefCell` [INFO] [stderr] --> src/algorithm/word_search.rs:1:5 [INFO] [stderr] | [INFO] [stderr] 1 | use std::cell::RefCell; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::collections::HashMap` [INFO] [stderr] --> src/algorithm/word_search.rs:2:5 [INFO] [stderr] | [INFO] [stderr] 2 | use std::collections::HashMap; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::mem::drop` [INFO] [stderr] --> src/algorithm/word_search.rs:4:5 [INFO] [stderr] | [INFO] [stderr] 4 | use std::mem::drop; [INFO] [stderr] | ^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::rc::Rc` [INFO] [stderr] --> src/algorithm/word_search.rs:5:5 [INFO] [stderr] | [INFO] [stderr] 5 | use std::rc::Rc; [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::rc::Weak` [INFO] [stderr] --> src/algorithm/word_search.rs:6:5 [INFO] [stderr] | [INFO] [stderr] 6 | use std::rc::Weak; [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::str::FromStr` [INFO] [stderr] --> src/algorithm/word_search.rs:8:5 [INFO] [stderr] | [INFO] [stderr] 8 | use std::str::FromStr; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused imports: `thread`, `time` [INFO] [stderr] --> src/algorithm/word_search.rs:11:11 [INFO] [stderr] | [INFO] [stderr] 11 | use std::{thread, time}; [INFO] [stderr] | ^^^^^^ ^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::mem::drop` [INFO] [stderr] --> src/algorithm/word_search_ii.rs:8:5 [INFO] [stderr] | [INFO] [stderr] 8 | use std::mem::drop; [INFO] [stderr] | ^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::rc::Weak` [INFO] [stderr] --> src/algorithm/word_search_ii.rs:10:5 [INFO] [stderr] | [INFO] [stderr] 10 | use std::rc::Weak; [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::str::FromStr` [INFO] [stderr] --> src/algorithm/word_search_ii.rs:11:5 [INFO] [stderr] | [INFO] [stderr] 11 | use std::str::FromStr; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused imports: `thread`, `time` [INFO] [stderr] --> src/algorithm/word_search_ii.rs:13:11 [INFO] [stderr] | [INFO] [stderr] 13 | use std::{thread, time}; [INFO] [stderr] | ^^^^^^ ^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::iter::Iterator` [INFO] [stderr] --> src/algorithm/lru.rs:3:5 [INFO] [stderr] | [INFO] [stderr] 3 | use std::iter::Iterator; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused variable: `pre` [INFO] [stderr] --> src/algorithm/add_two_number.rs:26:13 [INFO] [stderr] | [INFO] [stderr] 26 | let mut pre: i32 = 0; [INFO] [stderr] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_pre` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `data` [INFO] [stderr] --> src/algorithm/lru.rs:44:18 [INFO] [stderr] | [INFO] [stderr] 44 | Some(data) => {} [INFO] [stderr] | ^^^^ help: if this is intentional, prefix it with an underscore: `_data` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `val` [INFO] [stderr] --> src/algorithm/advantage_shuffle.rs:8:37 [INFO] [stderr] | [INFO] [stderr] 8 | if let Some((index, val)) = a.iter().enumerate().find(|item| item.1 > x) { [INFO] [stderr] | ^^^ help: if this is intentional, prefix it with an underscore: `_val` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `index` [INFO] [stderr] --> src/algorithm/fraction_to_recurring_decimal.rs:57:13 [INFO] [stderr] | [INFO] [stderr] 57 | let mut index: Option = None; [INFO] [stderr] | ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_index` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `max_x` [INFO] [stderr] --> src/algorithm/word_search.rs:56:32 [INFO] [stderr] | [INFO] [stderr] 56 | fn new(x: usize, y: usize, max_x: usize, max_y: usize) -> Node { [INFO] [stderr] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_max_x` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `max_y` [INFO] [stderr] --> src/algorithm/word_search.rs:56:46 [INFO] [stderr] | [INFO] [stderr] 56 | fn new(x: usize, y: usize, max_x: usize, max_y: usize) -> Node { [INFO] [stderr] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_max_y` [INFO] [stderr] [INFO] [stderr] warning: value assigned to `i_y` is never read [INFO] [stderr] --> src/algorithm/word_search.rs:100:13 [INFO] [stderr] | [INFO] [stderr] 100 | let mut i_y = 0; [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_assignments)]` on by default [INFO] [stderr] = help: maybe it is overwritten before being read? [INFO] [stderr] [INFO] [stderr] warning: value assigned to `i_y` is never read [INFO] [stderr] --> src/algorithm/word_search_ii.rs:176:13 [INFO] [stderr] | [INFO] [stderr] 176 | let mut i_y = 0; [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = help: maybe it is overwritten before being read? [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/algorithm/add_two_number.rs:23:13 [INFO] [stderr] | [INFO] [stderr] 23 | let mut walker = &l1; [INFO] [stderr] | ----^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_mut)]` on by default [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/algorithm/add_two_number.rs:24:13 [INFO] [stderr] | [INFO] [stderr] 24 | let mut walker2 = &l2; [INFO] [stderr] | ----^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/algorithm/add_two_number.rs:26:13 [INFO] [stderr] | [INFO] [stderr] 26 | let mut pre: i32 = 0; [INFO] [stderr] | ----^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/algorithm/middle_number.rs:34:13 [INFO] [stderr] | [INFO] [stderr] 34 | let mut i_nums = nums; [INFO] [stderr] | ----^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/algorithm/fraction_to_recurring_decimal.rs:25:18 [INFO] [stderr] | [INFO] [stderr] 25 | let (mut i_ary, sign) = Solution::i_fraction_to_decimal((numerator * 10) as u64, denominator as u64); [INFO] [stderr] | ----^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/algorithm/fraction_to_recurring_decimal.rs:40:22 [INFO] [stderr] | [INFO] [stderr] 40 | let (mut i_ary, sign) = Solution::i_fraction_to_decimal((remain * 10) as u64, denominator as u64); [INFO] [stderr] | ----^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/algorithm/fraction_to_recurring_decimal.rs:54:48 [INFO] [stderr] | [INFO] [stderr] 54 | pub fn i_fraction_to_decimal(mut one: u64, mut two: u64) -> (Vec<(u64, u64)>, Option) { [INFO] [stderr] | ----^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/algorithm/fraction_to_recurring_decimal.rs:57:13 [INFO] [stderr] | [INFO] [stderr] 57 | let mut index: Option = None; [INFO] [stderr] | ----^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/algorithm/word_search_ii.rs:165:46 [INFO] [stderr] | [INFO] [stderr] 165 | pub fn find_words(board: Vec>, mut words: Vec) -> Vec { [INFO] [stderr] | ----^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/problem/mod.rs:6:9 [INFO] [stderr] | [INFO] [stderr] 6 | let mut iter = SelfIter { [INFO] [stderr] | ----^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: method is never used: `new` [INFO] [stderr] --> src/algorithm/rotate_list.rs:12:3 [INFO] [stderr] | [INFO] [stderr] 12 | fn new(val: i32) -> Self { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: method is never used: `new` [INFO] [stderr] --> src/algorithm/middle_of_the_linked_list.rs:15:3 [INFO] [stderr] | [INFO] [stderr] 15 | fn new(val: i32) -> Self { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: comparison is useless due to type limits [INFO] [stderr] --> src/algorithm/word_search.rs:42:50 [INFO] [stderr] | [INFO] [stderr] 42 | let new_ary = ary.iter().filter(|&item| {item.0 >= 0 && item.1 >= 0 && item.0 < max_x && item.1 < max_y}).map(|&x| x).collect(); [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_comparisons)]` on by default [INFO] [stderr] [INFO] [stderr] warning: comparison is useless due to type limits [INFO] [stderr] --> src/algorithm/word_search.rs:42:65 [INFO] [stderr] | [INFO] [stderr] 42 | let new_ary = ary.iter().filter(|&item| {item.0 >= 0 && item.1 >= 0 && item.0 < max_x && item.1 < max_y}).map(|&x| x).collect(); [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: comparison is useless due to type limits [INFO] [stderr] --> src/algorithm/word_search_ii.rs:120:29 [INFO] [stderr] | [INFO] [stderr] 120 | .filter(|&item| item.0 >= 0 && item.1 >= 0 && item.0 < max_x && item.1 < max_y) [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: comparison is useless due to type limits [INFO] [stderr] --> src/algorithm/word_search_ii.rs:120:44 [INFO] [stderr] | [INFO] [stderr] 120 | .filter(|&item| item.0 >= 0 && item.1 >= 0 && item.0 < max_x && item.1 < max_y) [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: 54 warnings emitted [INFO] [stderr] [INFO] [stderr] warning: unused imports: `advantage_shuffle`, `arithmetic_slices`, `array_partition_i`, `asteroid_collision`, `best_time_to_buy_and_sell_stock`, `find_first_and_last_position_of_element_in_sorted_array`, `fraction_to_recurring_decimal`, `group_anagrams`, `heap`, `house_robber_ii`, `house_robber`, `implement_trie_prefix_tree`, `lru`, `merge_intervals`, `middle_number`, `middle_of_the_linked_list`, `most_long_str`, `most_water`, `receive_water`, `search_in_rotated_sorted_array`, `simplify_path`, `sort_colors`, `submissions`, `word_search`, `zigzag_conversion` [INFO] [stderr] --> src/main.rs:3:5 [INFO] [stderr] | [INFO] [stderr] 3 | advantage_shuffle, arithmetic_slices, array_partition_i, asteroid_collision, [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ ^^^^^^^^^^^^^^^^^ ^^^^^^^^^^^^^^^^^ ^^^^^^^^^^^^^^^^^^ [INFO] [stderr] 4 | best_time_to_buy_and_sell_stock, find_first_and_last_position_of_element_in_sorted_array, [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] 5 | fraction_to_recurring_decimal, group_anagrams, heap, house_robber, house_robber_ii, [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ ^^^^^^^^^^^^^^ ^^^^ ^^^^^^^^^^^^ ^^^^^^^^^^^^^^^ [INFO] [stderr] 6 | implement_trie_prefix_tree, lru, merge_intervals, middle_number, middle_of_the_linked_list, [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ ^^^ ^^^^^^^^^^^^^^^ ^^^^^^^^^^^^^ ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] 7 | most_long_str, most_water, receive_water, search_in_rotated_sorted_array, simplify_path, [INFO] [stderr] | ^^^^^^^^^^^^^ ^^^^^^^^^^ ^^^^^^^^^^^^^ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ ^^^^^^^^^^^^^ [INFO] [stderr] 8 | sort_colors, submissions, word_search, word_search_ii, zigzag_conversion, [INFO] [stderr] | ^^^^^^^^^^^ ^^^^^^^^^^^ ^^^^^^^^^^^ ^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `point24::problem` [INFO] [stderr] --> src/main.rs:10:5 [INFO] [stderr] | [INFO] [stderr] 10 | use point24::problem; [INFO] [stderr] | ^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:172:9 [INFO] [stderr] | [INFO] [stderr] 172 | let mut board = vec![ [INFO] [stderr] | ----^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_mut)]` on by default [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:181:9 [INFO] [stderr] | [INFO] [stderr] 181 | let mut strs = vec!["aaab", "aaa"]; [INFO] [stderr] | ----^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `Person` [INFO] [stderr] --> src/main.rs:12:8 [INFO] [stderr] | [INFO] [stderr] 12 | struct Person { [INFO] [stderr] | ^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: method is never used: `say` [INFO] [stderr] --> src/main.rs:18:5 [INFO] [stderr] | [INFO] [stderr] 18 | fn say() { [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `say_name` [INFO] [stderr] --> src/main.rs:24:5 [INFO] [stderr] | [INFO] [stderr] 24 | fn say_name() { [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: 7 warnings emitted [INFO] [stderr] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.03s [INFO] [stderr] Running /opt/rustwide/target/debug/deps/point24-5c9debd0b5c5889d [INFO] [stdout] [INFO] [stdout] running 2 tests [INFO] [stdout] test algorithm::rotate_list::test::test ... ok [INFO] [stdout] test algorithm::permutation_sequence::test::test_n_value ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out [INFO] [stdout] [INFO] [stderr] Running /opt/rustwide/target/debug/deps/point24-3db45924be845ec4 [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 [INFO] [stdout] [INFO] [stderr] Doc-tests point24 [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 [INFO] [stdout] [INFO] running `"docker" "inspect" "b44743102d90669b8c679d65323511e658ac0395c23786710ce1497bf08d0c3d"` [INFO] running `"docker" "rm" "-f" "b44743102d90669b8c679d65323511e658ac0395c23786710ce1497bf08d0c3d"` [INFO] [stdout] b44743102d90669b8c679d65323511e658ac0395c23786710ce1497bf08d0c3d