[INFO] updating cached repository https://github.com/Kilerd/leetcode-rust [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] c86d96d20350707dd9345d76db5b84b309d96fb1 [INFO] testing Kilerd/leetcode-rust against beta-2020-06-03 for beta-1.45-1 [INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKilerd%2Fleetcode-rust" "/workspace/builds/worker-12/source"` [INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/Kilerd/leetcode-rust on toolchain beta-2020-06-03 [INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started tweaking git repo https://github.com/Kilerd/leetcode-rust [INFO] finished tweaking git repo https://github.com/Kilerd/leetcode-rust [INFO] tweaked toml for git repo https://github.com/Kilerd/leetcode-rust written to /workspace/builds/worker-12/source/Cargo.toml [INFO] crate git repo https://github.com/Kilerd/leetcode-rust already has a lockfile, it will not be regenerated [INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "+beta-2020-06-03" "build" "--frozen"` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] 0d0273ac418f625e6e5dfa12c4092cf82c3eddd3bec9ad44c585f3975bd3c384 [INFO] running `"docker" "start" "-a" "0d0273ac418f625e6e5dfa12c4092cf82c3eddd3bec9ad44c585f3975bd3c384"` [INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Compiling leetcode v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] warning: unused doc comment [INFO] [stderr] --> src/container_with_most_water.rs:22:9 [INFO] [stderr] | [INFO] [stderr] 22 | /// two pointer solution [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] 23 | [INFO] [stderr] 24 | let mut start = 0usize; [INFO] [stderr] | ----------------------- rustdoc does not generate documentation for statements [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_doc_comments)]` on by default [INFO] [stderr] [INFO] [stderr] warning: `...` range patterns are deprecated [INFO] [stderr] --> src/integer_to_roman.rs:15:21 [INFO] [stderr] | [INFO] [stderr] 15 | 1000...std::i32::MAX => ("M", 1000), [INFO] [stderr] | ^^^ help: use `..=` for an inclusive range [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default [INFO] [stderr] [INFO] [stderr] warning: `...` range patterns are deprecated [INFO] [stderr] --> src/integer_to_roman.rs:16:20 [INFO] [stderr] | [INFO] [stderr] 16 | 900...1000 => ("CM", 900), [INFO] [stderr] | ^^^ help: use `..=` for an inclusive range [INFO] [stderr] [INFO] [stderr] warning: `...` range patterns are deprecated [INFO] [stderr] --> src/integer_to_roman.rs:17:20 [INFO] [stderr] | [INFO] [stderr] 17 | 500...900 => ("D", 500), [INFO] [stderr] | ^^^ help: use `..=` for an inclusive range [INFO] [stderr] [INFO] [stderr] warning: `...` range patterns are deprecated [INFO] [stderr] --> src/integer_to_roman.rs:18:20 [INFO] [stderr] | [INFO] [stderr] 18 | 400...500 => ("CD", 400), [INFO] [stderr] | ^^^ help: use `..=` for an inclusive range [INFO] [stderr] [INFO] [stderr] warning: `...` range patterns are deprecated [INFO] [stderr] --> src/integer_to_roman.rs:19:20 [INFO] [stderr] | [INFO] [stderr] 19 | 100...400 => ("C", 100), [INFO] [stderr] | ^^^ help: use `..=` for an inclusive range [INFO] [stderr] [INFO] [stderr] warning: `...` range patterns are deprecated [INFO] [stderr] --> src/integer_to_roman.rs:20:19 [INFO] [stderr] | [INFO] [stderr] 20 | 90...100 => ("XC", 90), [INFO] [stderr] | ^^^ help: use `..=` for an inclusive range [INFO] [stderr] [INFO] [stderr] warning: `...` range patterns are deprecated [INFO] [stderr] --> src/integer_to_roman.rs:21:19 [INFO] [stderr] | [INFO] [stderr] 21 | 50...90 => ("L", 50), [INFO] [stderr] | ^^^ help: use `..=` for an inclusive range [INFO] [stderr] [INFO] [stderr] warning: `...` range patterns are deprecated [INFO] [stderr] --> src/integer_to_roman.rs:22:19 [INFO] [stderr] | [INFO] [stderr] 22 | 40...50 => ("XL", 40), [INFO] [stderr] | ^^^ help: use `..=` for an inclusive range [INFO] [stderr] [INFO] [stderr] warning: `...` range patterns are deprecated [INFO] [stderr] --> src/integer_to_roman.rs:23:19 [INFO] [stderr] | [INFO] [stderr] 23 | 10...40 => ("X", 10), [INFO] [stderr] | ^^^ help: use `..=` for an inclusive range [INFO] [stderr] [INFO] [stderr] warning: `...` range patterns are deprecated [INFO] [stderr] --> src/integer_to_roman.rs:25:18 [INFO] [stderr] | [INFO] [stderr] 25 | 5...9 => ("V", 5), [INFO] [stderr] | ^^^ help: use `..=` for an inclusive range [INFO] [stderr] [INFO] [stderr] warning: `...` range patterns are deprecated [INFO] [stderr] --> src/integer_to_roman.rs:27:18 [INFO] [stderr] | [INFO] [stderr] 27 | 1...4 => ("I", 1), [INFO] [stderr] | ^^^ help: use `..=` for an inclusive range [INFO] [stderr] [INFO] [stderr] warning: `...` range patterns are deprecated [INFO] [stderr] --> src/nim_game.rs:11:14 [INFO] [stderr] | [INFO] [stderr] 11 | 1...3 => true, [INFO] [stderr] | ^^^ help: use `..=` for an inclusive range [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::i32` [INFO] [stderr] --> src/reverse_integer.rs:11:13 [INFO] [stderr] | [INFO] [stderr] 11 | use std::i32; [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::cmp::min` [INFO] [stderr] --> src/three_sum_closest.rs:13:13 [INFO] [stderr] | [INFO] [stderr] 13 | use std::cmp::min; [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: multiple patterns covering the same range [INFO] [stderr] --> src/integer_to_roman.rs:16:17 [INFO] [stderr] | [INFO] [stderr] 15 | 1000...std::i32::MAX => ("M", 1000), [INFO] [stderr] | -------------------- this range overlaps on `1000i32` [INFO] [stderr] 16 | 900...1000 => ("CM", 900), [INFO] [stderr] | ^^^^^^^^^^ overlapping patterns [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(overlapping_patterns)]` on by default [INFO] [stderr] [INFO] [stderr] warning: multiple patterns covering the same range [INFO] [stderr] --> src/integer_to_roman.rs:17:17 [INFO] [stderr] | [INFO] [stderr] 16 | 900...1000 => ("CM", 900), [INFO] [stderr] | ---------- this range overlaps on `900i32` [INFO] [stderr] 17 | 500...900 => ("D", 500), [INFO] [stderr] | ^^^^^^^^^ overlapping patterns [INFO] [stderr] [INFO] [stderr] warning: multiple patterns covering the same range [INFO] [stderr] --> src/integer_to_roman.rs:18:17 [INFO] [stderr] | [INFO] [stderr] 17 | 500...900 => ("D", 500), [INFO] [stderr] | --------- this range overlaps on `500i32` [INFO] [stderr] 18 | 400...500 => ("CD", 400), [INFO] [stderr] | ^^^^^^^^^ overlapping patterns [INFO] [stderr] [INFO] [stderr] warning: multiple patterns covering the same range [INFO] [stderr] --> src/integer_to_roman.rs:19:17 [INFO] [stderr] | [INFO] [stderr] 18 | 400...500 => ("CD", 400), [INFO] [stderr] | --------- this range overlaps on `400i32` [INFO] [stderr] 19 | 100...400 => ("C", 100), [INFO] [stderr] | ^^^^^^^^^ overlapping patterns [INFO] [stderr] [INFO] [stderr] warning: multiple patterns covering the same range [INFO] [stderr] --> src/integer_to_roman.rs:20:17 [INFO] [stderr] | [INFO] [stderr] 19 | 100...400 => ("C", 100), [INFO] [stderr] | --------- this range overlaps on `100i32` [INFO] [stderr] 20 | 90...100 => ("XC", 90), [INFO] [stderr] | ^^^^^^^^ overlapping patterns [INFO] [stderr] [INFO] [stderr] warning: multiple patterns covering the same range [INFO] [stderr] --> src/integer_to_roman.rs:21:17 [INFO] [stderr] | [INFO] [stderr] 20 | 90...100 => ("XC", 90), [INFO] [stderr] | -------- this range overlaps on `90i32` [INFO] [stderr] 21 | 50...90 => ("L", 50), [INFO] [stderr] | ^^^^^^^ overlapping patterns [INFO] [stderr] [INFO] [stderr] warning: multiple patterns covering the same range [INFO] [stderr] --> src/integer_to_roman.rs:22:17 [INFO] [stderr] | [INFO] [stderr] 21 | 50...90 => ("L", 50), [INFO] [stderr] | ------- this range overlaps on `50i32` [INFO] [stderr] 22 | 40...50 => ("XL", 40), [INFO] [stderr] | ^^^^^^^ overlapping patterns [INFO] [stderr] [INFO] [stderr] warning: multiple patterns covering the same range [INFO] [stderr] --> src/integer_to_roman.rs:23:17 [INFO] [stderr] | [INFO] [stderr] 22 | 40...50 => ("XL", 40), [INFO] [stderr] | ------- this range overlaps on `40i32` [INFO] [stderr] 23 | 10...40 => ("X", 10), [INFO] [stderr] | ^^^^^^^ overlapping patterns [INFO] [stderr] [INFO] [stderr] warning: multiple patterns covering the same range [INFO] [stderr] --> src/integer_to_roman.rs:25:17 [INFO] [stderr] | [INFO] [stderr] 24 | 9 => ("IX", 9), [INFO] [stderr] | - this range overlaps on `9i32` [INFO] [stderr] 25 | 5...9 => ("V", 5), [INFO] [stderr] | ^^^^^ overlapping patterns [INFO] [stderr] [INFO] [stderr] warning: multiple patterns covering the same range [INFO] [stderr] --> src/integer_to_roman.rs:27:17 [INFO] [stderr] | [INFO] [stderr] 26 | 4 => ("IV", 4), [INFO] [stderr] | - this range overlaps on `4i32` [INFO] [stderr] 27 | 1...4 => ("I", 1), [INFO] [stderr] | ^^^^^ overlapping patterns [INFO] [stderr] [INFO] [stderr] warning: cannot borrow `map` as mutable because it is also borrowed as immutable [INFO] [stderr] --> src/three_sum.rs:18:13 [INFO] [stderr] | [INFO] [stderr] 17 | let value = map.get(&x).unwrap_or(&0); [INFO] [stderr] | --- immutable borrow occurs here [INFO] [stderr] 18 | map.insert(x, *value + 1); [INFO] [stderr] | ^^^ ------ immutable borrow later used here [INFO] [stderr] | | [INFO] [stderr] | mutable borrow occurs here [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(mutable_borrow_reservation_conflict)]` on by default [INFO] [stderr] = warning: this borrowing pattern was not meant to be accepted, and may become a hard error in the future [INFO] [stderr] = note: for more information, see issue #59159 [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/combination_sum.rs:16:25 [INFO] [stderr] | [INFO] [stderr] 16 | let mut vec1 = Solution::combination_sum(candidates.clone(), target - *x); [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: struct is never constructed: `Solution` [INFO] [stderr] --> src/add_two_number.rs:9:8 [INFO] [stderr] | [INFO] [stderr] 9 | struct Solution; [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `add_two_numbers` [INFO] [stderr] --> src/add_two_number.rs:12:12 [INFO] [stderr] | [INFO] [stderr] 12 | pub fn add_two_numbers(l1: Option>, l2: Option>) -> Option> { [INFO] [stderr] | ^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `Solution` [INFO] [stderr] --> src/array_partition_i.rs:6:8 [INFO] [stderr] | [INFO] [stderr] 6 | struct Solution; [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `array_pair_sum` [INFO] [stderr] --> src/array_partition_i.rs:9:12 [INFO] [stderr] | [INFO] [stderr] 9 | pub fn array_pair_sum(nums: Vec) -> i32 { [INFO] [stderr] | ^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `Solution` [INFO] [stderr] --> src/big_countries.rs:7:8 [INFO] [stderr] | [INFO] [stderr] 7 | struct Solution; [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `main` [INFO] [stderr] --> src/big_countries.rs:10:4 [INFO] [stderr] | [INFO] [stderr] 10 | fn main() { [INFO] [stderr] | ^^^^ [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `Solution` [INFO] [stderr] --> src/container_with_most_water.rs:7:8 [INFO] [stderr] | [INFO] [stderr] 7 | struct Solution; [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `max_area` [INFO] [stderr] --> src/container_with_most_water.rs:10:12 [INFO] [stderr] | [INFO] [stderr] 10 | pub fn max_area(height: Vec) -> i32 { [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `Solution` [INFO] [stderr] --> src/di_string_match.rs:7:8 [INFO] [stderr] | [INFO] [stderr] 7 | struct Solution; [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `di_string_match` [INFO] [stderr] --> src/di_string_match.rs:10:12 [INFO] [stderr] | [INFO] [stderr] 10 | pub fn di_string_match(s: String) -> Vec { [INFO] [stderr] | ^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `Solution` [INFO] [stderr] --> src/divide_two_integers.rs:6:8 [INFO] [stderr] | [INFO] [stderr] 6 | struct Solution; [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `divide` [INFO] [stderr] --> src/divide_two_integers.rs:9:12 [INFO] [stderr] | [INFO] [stderr] 9 | pub fn divide(dividend: i32, divisor: i32) -> i32 { [INFO] [stderr] | ^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `Solution` [INFO] [stderr] --> src/flipping_an_image.rs:6:8 [INFO] [stderr] | [INFO] [stderr] 6 | struct Solution; [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `flip_and_invert_image` [INFO] [stderr] --> src/flipping_an_image.rs:9:12 [INFO] [stderr] | [INFO] [stderr] 9 | pub fn flip_and_invert_image(a: Vec>) -> Vec> { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `Solution` [INFO] [stderr] --> src/generate_parentheses.rs:6:8 [INFO] [stderr] | [INFO] [stderr] 6 | struct Solution; [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `generate_parenthesis` [INFO] [stderr] --> src/generate_parentheses.rs:9:12 [INFO] [stderr] | [INFO] [stderr] 9 | pub fn generate_parenthesis(n: i32) -> Vec { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `Solution` [INFO] [stderr] --> src/hamming_distance.rs:7:8 [INFO] [stderr] | [INFO] [stderr] 7 | struct Solution; [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `hamming_distance` [INFO] [stderr] --> src/hamming_distance.rs:10:12 [INFO] [stderr] | [INFO] [stderr] 10 | pub fn hamming_distance(x: i32, y: i32) -> i32 { [INFO] [stderr] | ^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `Solution` [INFO] [stderr] --> src/implement_strstr.rs:7:8 [INFO] [stderr] | [INFO] [stderr] 7 | struct Solution; [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `str_str` [INFO] [stderr] --> src/implement_strstr.rs:10:12 [INFO] [stderr] | [INFO] [stderr] 10 | pub fn str_str(haystack: String, needle: String) -> i32 { [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `Solution` [INFO] [stderr] --> src/integer_to_roman.rs:7:8 [INFO] [stderr] | [INFO] [stderr] 7 | struct Solution; [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `int_to_roman` [INFO] [stderr] --> src/integer_to_roman.rs:10:12 [INFO] [stderr] | [INFO] [stderr] 10 | pub fn int_to_roman(num: i32) -> String { [INFO] [stderr] | ^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `Solution` [INFO] [stderr] --> src/jewels_and_stones.rs:6:8 [INFO] [stderr] | [INFO] [stderr] 6 | struct Solution(); [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `num_jewels_in_stones` [INFO] [stderr] --> src/jewels_and_stones.rs:9:12 [INFO] [stderr] | [INFO] [stderr] 9 | pub fn num_jewels_in_stones(j: String, s: String) -> i32 { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `Solution` [INFO] [stderr] --> src/letter_combinations_of_a_phone_number.rs:7:8 [INFO] [stderr] | [INFO] [stderr] 7 | struct Solution; [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `letter_combinations` [INFO] [stderr] --> src/letter_combinations_of_a_phone_number.rs:10:12 [INFO] [stderr] | [INFO] [stderr] 10 | pub fn letter_combinations(digits: String) -> Vec { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `new` [INFO] [stderr] --> src/list.rs:9:8 [INFO] [stderr] | [INFO] [stderr] 9 | fn new(val: i32) -> Self { [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `build_from_vec` [INFO] [stderr] --> src/list.rs:16:12 [INFO] [stderr] | [INFO] [stderr] 16 | pub fn build_from_vec(vec: Vec)-> Option> { [INFO] [stderr] | ^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `Solution` [INFO] [stderr] --> src/longest_substring_without_repeating_characters.rs:8:8 [INFO] [stderr] | [INFO] [stderr] 8 | struct Solution; [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `length_of_longest_substring` [INFO] [stderr] --> src/longest_substring_without_repeating_characters.rs:11:12 [INFO] [stderr] | [INFO] [stderr] 11 | pub fn length_of_longest_substring(s: String) -> i32 { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `new` [INFO] [stderr] --> src/merge_two_binary_trees.rs:17:12 [INFO] [stderr] | [INFO] [stderr] 17 | pub fn new(val: i32) -> Self { [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `Solution` [INFO] [stderr] --> src/merge_two_binary_trees.rs:29:8 [INFO] [stderr] | [INFO] [stderr] 29 | struct Solution; [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `merge_trees` [INFO] [stderr] --> src/merge_two_binary_trees.rs:32:12 [INFO] [stderr] | [INFO] [stderr] 32 | pub fn merge_trees( [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `Solution` [INFO] [stderr] --> src/nim_game.rs:6:8 [INFO] [stderr] | [INFO] [stderr] 6 | struct Solution(); [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `can_win_nim` [INFO] [stderr] --> src/nim_game.rs:9:12 [INFO] [stderr] | [INFO] [stderr] 9 | pub fn can_win_nim(n: i32) -> bool { [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `RecentCounter` [INFO] [stderr] --> src/number_of_recent_calls.rs:6:8 [INFO] [stderr] | [INFO] [stderr] 6 | struct RecentCounter { [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `new` [INFO] [stderr] --> src/number_of_recent_calls.rs:12:8 [INFO] [stderr] | [INFO] [stderr] 12 | fn new() -> Self { [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `ping` [INFO] [stderr] --> src/number_of_recent_calls.rs:16:8 [INFO] [stderr] | [INFO] [stderr] 16 | fn ping(&mut self, t: i32) -> i32 { [INFO] [stderr] | ^^^^ [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `Solution` [INFO] [stderr] --> src/palindrome_number.rs:7:8 [INFO] [stderr] | [INFO] [stderr] 7 | struct Solution; [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `is_palindrome` [INFO] [stderr] --> src/palindrome_number.rs:11:12 [INFO] [stderr] | [INFO] [stderr] 11 | pub fn is_palindrome(x: i32) -> bool { [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `Solution` [INFO] [stderr] --> src/peak_index_in_a_mountain_array.rs:7:8 [INFO] [stderr] | [INFO] [stderr] 7 | struct Solution; [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `peak_index_in_mountain_array` [INFO] [stderr] --> src/peak_index_in_a_mountain_array.rs:10:12 [INFO] [stderr] | [INFO] [stderr] 10 | pub fn peak_index_in_mountain_array(a: Vec) -> i32 { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `Solution` [INFO] [stderr] --> src/remove_duplicates_from_sorted_array.rs:7:8 [INFO] [stderr] | [INFO] [stderr] 7 | struct Solution; [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `remove_duplicates` [INFO] [stderr] --> src/remove_duplicates_from_sorted_array.rs:10:12 [INFO] [stderr] | [INFO] [stderr] 10 | pub fn remove_duplicates(nums: &mut Vec) -> i32 { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `Solution` [INFO] [stderr] --> src/remove_element.rs:7:8 [INFO] [stderr] | [INFO] [stderr] 7 | struct Solution; [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `remove_element` [INFO] [stderr] --> src/remove_element.rs:10:12 [INFO] [stderr] | [INFO] [stderr] 10 | pub fn remove_element(nums: &mut Vec, val: i32) -> i32 { [INFO] [stderr] | ^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `Solution` [INFO] [stderr] --> src/reverse_integer.rs:7:8 [INFO] [stderr] | [INFO] [stderr] 7 | struct Solution; [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `reverse` [INFO] [stderr] --> src/reverse_integer.rs:10:12 [INFO] [stderr] | [INFO] [stderr] 10 | pub fn reverse(x: i32) -> i32 { [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `Solution` [INFO] [stderr] --> src/robot_return_to_origin.rs:6:8 [INFO] [stderr] | [INFO] [stderr] 6 | struct Solution; [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `judge_circle` [INFO] [stderr] --> src/robot_return_to_origin.rs:9:12 [INFO] [stderr] | [INFO] [stderr] 9 | pub fn judge_circle(moves: String) -> bool { [INFO] [stderr] | ^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `Solution` [INFO] [stderr] --> src/search_in_rotated_sorted_array.rs:6:8 [INFO] [stderr] | [INFO] [stderr] 6 | struct Solution; [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `rotated_index` [INFO] [stderr] --> src/search_in_rotated_sorted_array.rs:9:12 [INFO] [stderr] | [INFO] [stderr] 9 | pub fn rotated_index(nums: &Vec, start: usize, end: usize) -> usize { [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `search` [INFO] [stderr] --> src/search_in_rotated_sorted_array.rs:25:12 [INFO] [stderr] | [INFO] [stderr] 25 | pub fn search(nums: Vec, target: i32) -> i32 { [INFO] [stderr] | ^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `Solution` [INFO] [stderr] --> src/self_dividing_numbers.rs:7:8 [INFO] [stderr] | [INFO] [stderr] 7 | struct Solution; [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `self_dividing_numbers` [INFO] [stderr] --> src/self_dividing_numbers.rs:10:12 [INFO] [stderr] | [INFO] [stderr] 10 | pub fn self_dividing_numbers(left: i32, right: i32) -> Vec { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `Solution` [INFO] [stderr] --> src/sort_array_by_parity.rs:7:8 [INFO] [stderr] | [INFO] [stderr] 7 | struct Solution; [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `self_dividing_numbers` [INFO] [stderr] --> src/sort_array_by_parity.rs:10:12 [INFO] [stderr] | [INFO] [stderr] 10 | pub fn self_dividing_numbers(left: i32, right: i32) -> Vec { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `Solution` [INFO] [stderr] --> src/sort_array_by_parity_ii.rs:7:8 [INFO] [stderr] | [INFO] [stderr] 7 | struct Solution; [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `sort_array_by_parity_ii` [INFO] [stderr] --> src/sort_array_by_parity_ii.rs:10:12 [INFO] [stderr] | [INFO] [stderr] 10 | pub fn sort_array_by_parity_ii(a: Vec) -> Vec { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `Solution` [INFO] [stderr] --> src/sort_colors.rs:7:8 [INFO] [stderr] | [INFO] [stderr] 7 | struct Solution; [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `sort_colors` [INFO] [stderr] --> src/sort_colors.rs:10:12 [INFO] [stderr] | [INFO] [stderr] 10 | pub fn sort_colors(nums: &mut Vec) { [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `Solution` [INFO] [stderr] --> src/string_to_integer_atoi.rs:7:8 [INFO] [stderr] | [INFO] [stderr] 7 | struct Solution; [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `my_atoi` [INFO] [stderr] --> src/string_to_integer_atoi.rs:10:12 [INFO] [stderr] | [INFO] [stderr] 10 | pub fn my_atoi(str_: String) -> i32 { [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `Solution` [INFO] [stderr] --> src/sudoku_solver.rs:6:8 [INFO] [stderr] | [INFO] [stderr] 6 | struct Solution; [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `solve_sudoku` [INFO] [stderr] --> src/sudoku_solver.rs:9:12 [INFO] [stderr] | [INFO] [stderr] 9 | pub fn solve_sudoku(board: &mut Vec>) { [INFO] [stderr] | ^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `invalid` [INFO] [stderr] --> src/sudoku_solver.rs:38:12 [INFO] [stderr] | [INFO] [stderr] 38 | pub fn invalid(board: &Vec>, x: usize, y: usize) -> bool { [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `Solution` [INFO] [stderr] --> src/three_sum.rs:7:8 [INFO] [stderr] | [INFO] [stderr] 7 | struct Solution; [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `three_sum` [INFO] [stderr] --> src/three_sum.rs:10:12 [INFO] [stderr] | [INFO] [stderr] 10 | pub fn three_sum(nums: Vec) -> Vec> { [INFO] [stderr] | ^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `Solution` [INFO] [stderr] --> src/three_sum_closest.rs:9:8 [INFO] [stderr] | [INFO] [stderr] 9 | struct Solution; [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `three_sum_closest` [INFO] [stderr] --> src/three_sum_closest.rs:12:12 [INFO] [stderr] | [INFO] [stderr] 12 | pub fn three_sum_closest(nums: Vec, target: i32) -> i32 { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `Solution` [INFO] [stderr] --> src/to_lower_case.rs:7:8 [INFO] [stderr] | [INFO] [stderr] 7 | struct Solution(); [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `to_lower_case` [INFO] [stderr] --> src/to_lower_case.rs:10:12 [INFO] [stderr] | [INFO] [stderr] 10 | pub fn to_lower_case(str: String) -> String { [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `Solution` [INFO] [stderr] --> src/two_sum.rs:7:8 [INFO] [stderr] | [INFO] [stderr] 7 | struct Solution; [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `two_sum` [INFO] [stderr] --> src/two_sum.rs:10:12 [INFO] [stderr] | [INFO] [stderr] 10 | pub fn two_sum(nums: Vec, target: i32) -> Vec { [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `Solution` [INFO] [stderr] --> src/unique_email_addresses.rs:7:8 [INFO] [stderr] | [INFO] [stderr] 7 | struct Solution(); [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `num_unique_emails` [INFO] [stderr] --> src/unique_email_addresses.rs:10:12 [INFO] [stderr] | [INFO] [stderr] 10 | pub fn num_unique_emails(emails: Vec) -> i32 { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `Solution` [INFO] [stderr] --> src/unique_morse_code_words.rs:7:8 [INFO] [stderr] | [INFO] [stderr] 7 | struct Solution(); [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `unique_morse_representations` [INFO] [stderr] --> src/unique_morse_code_words.rs:10:12 [INFO] [stderr] | [INFO] [stderr] 10 | pub fn unique_morse_representations(words: Vec) -> i32 { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `Solution` [INFO] [stderr] --> src/valid_parentheses.rs:7:8 [INFO] [stderr] | [INFO] [stderr] 7 | struct Solution; [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `is_valid` [INFO] [stderr] --> src/valid_parentheses.rs:10:12 [INFO] [stderr] | [INFO] [stderr] 10 | pub fn is_valid(s: String) -> bool { [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `Solution` [INFO] [stderr] --> src/valid_sudoku.rs:6:8 [INFO] [stderr] | [INFO] [stderr] 6 | struct Solution; [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `is_valid_sudoku` [INFO] [stderr] --> src/valid_sudoku.rs:9:12 [INFO] [stderr] | [INFO] [stderr] 9 | pub fn is_valid_sudoku(board: Vec>) -> bool { [INFO] [stderr] | ^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `Solution` [INFO] [stderr] --> src/zigzag_conversion.rs:6:8 [INFO] [stderr] | [INFO] [stderr] 6 | struct Solution; [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `convert` [INFO] [stderr] --> src/zigzag_conversion.rs:11:12 [INFO] [stderr] | [INFO] [stderr] 11 | pub fn convert(s: String, num_rows: i32) -> String { [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `Solution` [INFO] [stderr] --> src/combination_sum.rs:8:8 [INFO] [stderr] | [INFO] [stderr] 8 | struct Solution; [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `combination_sum` [INFO] [stderr] --> src/combination_sum.rs:11:12 [INFO] [stderr] | [INFO] [stderr] 11 | pub fn combination_sum(candidates: Vec, target: i32) -> Vec> { [INFO] [stderr] | ^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: comparison is useless due to type limits [INFO] [stderr] --> src/sort_colors.rs:19:28 [INFO] [stderr] | [INFO] [stderr] 19 | let value = if 0 <= i && i < counts[0] { [INFO] [stderr] | ^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_comparisons)]` on by default [INFO] [stderr] [INFO] [stderr] warning: 114 warnings emitted [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 1.25s [INFO] running `"docker" "inspect" "0d0273ac418f625e6e5dfa12c4092cf82c3eddd3bec9ad44c585f3975bd3c384"` [INFO] running `"docker" "rm" "-f" "0d0273ac418f625e6e5dfa12c4092cf82c3eddd3bec9ad44c585f3975bd3c384"` [INFO] [stdout] 0d0273ac418f625e6e5dfa12c4092cf82c3eddd3bec9ad44c585f3975bd3c384 [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "+beta-2020-06-03" "test" "--frozen" "--no-run"` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] 1b52f9e32641125538d377aead5aa27076ae1b46aee4d7f57175326acd6c85e2 [INFO] running `"docker" "start" "-a" "1b52f9e32641125538d377aead5aa27076ae1b46aee4d7f57175326acd6c85e2"` [INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted [INFO] [stderr] Compiling leetcode v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] warning: unused doc comment [INFO] [stderr] --> src/container_with_most_water.rs:22:9 [INFO] [stderr] | [INFO] [stderr] 22 | /// two pointer solution [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] 23 | [INFO] [stderr] 24 | let mut start = 0usize; [INFO] [stderr] | ----------------------- rustdoc does not generate documentation for statements [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_doc_comments)]` on by default [INFO] [stderr] [INFO] [stderr] warning: `...` range patterns are deprecated [INFO] [stderr] --> src/integer_to_roman.rs:15:21 [INFO] [stderr] | [INFO] [stderr] 15 | 1000...std::i32::MAX => ("M", 1000), [INFO] [stderr] | ^^^ help: use `..=` for an inclusive range [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default [INFO] [stderr] [INFO] [stderr] warning: `...` range patterns are deprecated [INFO] [stderr] --> src/integer_to_roman.rs:16:20 [INFO] [stderr] | [INFO] [stderr] 16 | 900...1000 => ("CM", 900), [INFO] [stderr] | ^^^ help: use `..=` for an inclusive range [INFO] [stderr] [INFO] [stderr] warning: `...` range patterns are deprecated [INFO] [stderr] --> src/integer_to_roman.rs:17:20 [INFO] [stderr] | [INFO] [stderr] 17 | 500...900 => ("D", 500), [INFO] [stderr] | ^^^ help: use `..=` for an inclusive range [INFO] [stderr] [INFO] [stderr] warning: `...` range patterns are deprecated [INFO] [stderr] --> src/integer_to_roman.rs:18:20 [INFO] [stderr] | [INFO] [stderr] 18 | 400...500 => ("CD", 400), [INFO] [stderr] | ^^^ help: use `..=` for an inclusive range [INFO] [stderr] [INFO] [stderr] warning: `...` range patterns are deprecated [INFO] [stderr] --> src/integer_to_roman.rs:19:20 [INFO] [stderr] | [INFO] [stderr] 19 | 100...400 => ("C", 100), [INFO] [stderr] | ^^^ help: use `..=` for an inclusive range [INFO] [stderr] [INFO] [stderr] warning: `...` range patterns are deprecated [INFO] [stderr] --> src/integer_to_roman.rs:20:19 [INFO] [stderr] | [INFO] [stderr] 20 | 90...100 => ("XC", 90), [INFO] [stderr] | ^^^ help: use `..=` for an inclusive range [INFO] [stderr] [INFO] [stderr] warning: `...` range patterns are deprecated [INFO] [stderr] --> src/integer_to_roman.rs:21:19 [INFO] [stderr] | [INFO] [stderr] 21 | 50...90 => ("L", 50), [INFO] [stderr] | ^^^ help: use `..=` for an inclusive range [INFO] [stderr] [INFO] [stderr] warning: `...` range patterns are deprecated [INFO] [stderr] --> src/integer_to_roman.rs:22:19 [INFO] [stderr] | [INFO] [stderr] 22 | 40...50 => ("XL", 40), [INFO] [stderr] | ^^^ help: use `..=` for an inclusive range [INFO] [stderr] [INFO] [stderr] warning: `...` range patterns are deprecated [INFO] [stderr] --> src/integer_to_roman.rs:23:19 [INFO] [stderr] | [INFO] [stderr] 23 | 10...40 => ("X", 10), [INFO] [stderr] | ^^^ help: use `..=` for an inclusive range [INFO] [stderr] [INFO] [stderr] warning: `...` range patterns are deprecated [INFO] [stderr] --> src/integer_to_roman.rs:25:18 [INFO] [stderr] | [INFO] [stderr] 25 | 5...9 => ("V", 5), [INFO] [stderr] | ^^^ help: use `..=` for an inclusive range [INFO] [stderr] [INFO] [stderr] warning: `...` range patterns are deprecated [INFO] [stderr] --> src/integer_to_roman.rs:27:18 [INFO] [stderr] | [INFO] [stderr] 27 | 1...4 => ("I", 1), [INFO] [stderr] | ^^^ help: use `..=` for an inclusive range [INFO] [stderr] [INFO] [stderr] warning: `...` range patterns are deprecated [INFO] [stderr] --> src/nim_game.rs:11:14 [INFO] [stderr] | [INFO] [stderr] 11 | 1...3 => true, [INFO] [stderr] | ^^^ help: use `..=` for an inclusive range [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::i32` [INFO] [stderr] --> src/reverse_integer.rs:11:13 [INFO] [stderr] | [INFO] [stderr] 11 | use std::i32; [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::cmp::min` [INFO] [stderr] --> src/three_sum_closest.rs:13:13 [INFO] [stderr] | [INFO] [stderr] 13 | use std::cmp::min; [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: multiple patterns covering the same range [INFO] [stderr] --> src/integer_to_roman.rs:16:17 [INFO] [stderr] | [INFO] [stderr] 15 | 1000...std::i32::MAX => ("M", 1000), [INFO] [stderr] | -------------------- this range overlaps on `1000i32` [INFO] [stderr] 16 | 900...1000 => ("CM", 900), [INFO] [stderr] | ^^^^^^^^^^ overlapping patterns [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(overlapping_patterns)]` on by default [INFO] [stderr] [INFO] [stderr] warning: multiple patterns covering the same range [INFO] [stderr] --> src/integer_to_roman.rs:17:17 [INFO] [stderr] | [INFO] [stderr] 16 | 900...1000 => ("CM", 900), [INFO] [stderr] | ---------- this range overlaps on `900i32` [INFO] [stderr] 17 | 500...900 => ("D", 500), [INFO] [stderr] | ^^^^^^^^^ overlapping patterns [INFO] [stderr] [INFO] [stderr] warning: multiple patterns covering the same range [INFO] [stderr] --> src/integer_to_roman.rs:18:17 [INFO] [stderr] | [INFO] [stderr] 17 | 500...900 => ("D", 500), [INFO] [stderr] | --------- this range overlaps on `500i32` [INFO] [stderr] 18 | 400...500 => ("CD", 400), [INFO] [stderr] | ^^^^^^^^^ overlapping patterns [INFO] [stderr] [INFO] [stderr] warning: multiple patterns covering the same range [INFO] [stderr] --> src/integer_to_roman.rs:19:17 [INFO] [stderr] | [INFO] [stderr] 18 | 400...500 => ("CD", 400), [INFO] [stderr] | --------- this range overlaps on `400i32` [INFO] [stderr] 19 | 100...400 => ("C", 100), [INFO] [stderr] | ^^^^^^^^^ overlapping patterns [INFO] [stderr] [INFO] [stderr] warning: multiple patterns covering the same range [INFO] [stderr] --> src/integer_to_roman.rs:20:17 [INFO] [stderr] | [INFO] [stderr] 19 | 100...400 => ("C", 100), [INFO] [stderr] | --------- this range overlaps on `100i32` [INFO] [stderr] 20 | 90...100 => ("XC", 90), [INFO] [stderr] | ^^^^^^^^ overlapping patterns [INFO] [stderr] [INFO] [stderr] warning: multiple patterns covering the same range [INFO] [stderr] --> src/integer_to_roman.rs:21:17 [INFO] [stderr] | [INFO] [stderr] 20 | 90...100 => ("XC", 90), [INFO] [stderr] | -------- this range overlaps on `90i32` [INFO] [stderr] 21 | 50...90 => ("L", 50), [INFO] [stderr] | ^^^^^^^ overlapping patterns [INFO] [stderr] [INFO] [stderr] warning: multiple patterns covering the same range [INFO] [stderr] --> src/integer_to_roman.rs:22:17 [INFO] [stderr] | [INFO] [stderr] 21 | 50...90 => ("L", 50), [INFO] [stderr] | ------- this range overlaps on `50i32` [INFO] [stderr] 22 | 40...50 => ("XL", 40), [INFO] [stderr] | ^^^^^^^ overlapping patterns [INFO] [stderr] [INFO] [stderr] warning: multiple patterns covering the same range [INFO] [stderr] --> src/integer_to_roman.rs:23:17 [INFO] [stderr] | [INFO] [stderr] 22 | 40...50 => ("XL", 40), [INFO] [stderr] | ------- this range overlaps on `40i32` [INFO] [stderr] 23 | 10...40 => ("X", 10), [INFO] [stderr] | ^^^^^^^ overlapping patterns [INFO] [stderr] [INFO] [stderr] warning: multiple patterns covering the same range [INFO] [stderr] --> src/integer_to_roman.rs:25:17 [INFO] [stderr] | [INFO] [stderr] 24 | 9 => ("IX", 9), [INFO] [stderr] | - this range overlaps on `9i32` [INFO] [stderr] 25 | 5...9 => ("V", 5), [INFO] [stderr] | ^^^^^ overlapping patterns [INFO] [stderr] [INFO] [stderr] warning: multiple patterns covering the same range [INFO] [stderr] --> src/integer_to_roman.rs:27:17 [INFO] [stderr] | [INFO] [stderr] 26 | 4 => ("IV", 4), [INFO] [stderr] | - this range overlaps on `4i32` [INFO] [stderr] 27 | 1...4 => ("I", 1), [INFO] [stderr] | ^^^^^ overlapping patterns [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/sudoku_solver.rs:106:13 [INFO] [stderr] | [INFO] [stderr] 106 | let mut expected_solution = 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/sudoku_solver.rs:122:13 [INFO] [stderr] | [INFO] [stderr] 122 | let mut expected_solution = vec![ [INFO] [stderr] | ----^^^^^^^^^^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: cannot borrow `map` as mutable because it is also borrowed as immutable [INFO] [stderr] --> src/three_sum.rs:18:13 [INFO] [stderr] | [INFO] [stderr] 17 | let value = map.get(&x).unwrap_or(&0); [INFO] [stderr] | --- immutable borrow occurs here [INFO] [stderr] 18 | map.insert(x, *value + 1); [INFO] [stderr] | ^^^ ------ immutable borrow later used here [INFO] [stderr] | | [INFO] [stderr] | mutable borrow occurs here [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(mutable_borrow_reservation_conflict)]` on by default [INFO] [stderr] = warning: this borrowing pattern was not meant to be accepted, and may become a hard error in the future [INFO] [stderr] = note: for more information, see issue #59159 [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/combination_sum.rs:16:25 [INFO] [stderr] | [INFO] [stderr] 16 | let mut vec1 = Solution::combination_sum(candidates.clone(), target - *x); [INFO] [stderr] | ----^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `Solution` [INFO] [stderr] --> src/big_countries.rs:7:8 [INFO] [stderr] | [INFO] [stderr] 7 | struct Solution; [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: function is never used: `main` [INFO] [stderr] --> src/big_countries.rs:10:4 [INFO] [stderr] | [INFO] [stderr] 10 | fn main() { [INFO] [stderr] | ^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `new` [INFO] [stderr] --> src/list.rs:9:8 [INFO] [stderr] | [INFO] [stderr] 9 | fn new(val: i32) -> Self { [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `new` [INFO] [stderr] --> src/merge_two_binary_trees.rs:17:12 [INFO] [stderr] | [INFO] [stderr] 17 | pub fn new(val: i32) -> Self { [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `Solution` [INFO] [stderr] --> src/merge_two_binary_trees.rs:29:8 [INFO] [stderr] | [INFO] [stderr] 29 | struct Solution; [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `merge_trees` [INFO] [stderr] --> src/merge_two_binary_trees.rs:32:12 [INFO] [stderr] | [INFO] [stderr] 32 | pub fn merge_trees( [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `RecentCounter` [INFO] [stderr] --> src/number_of_recent_calls.rs:6:8 [INFO] [stderr] | [INFO] [stderr] 6 | struct RecentCounter { [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `new` [INFO] [stderr] --> src/number_of_recent_calls.rs:12:8 [INFO] [stderr] | [INFO] [stderr] 12 | fn new() -> Self { [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `ping` [INFO] [stderr] --> src/number_of_recent_calls.rs:16:8 [INFO] [stderr] | [INFO] [stderr] 16 | fn ping(&mut self, t: i32) -> i32 { [INFO] [stderr] | ^^^^ [INFO] [stderr] [INFO] [stderr] warning: comparison is useless due to type limits [INFO] [stderr] --> src/sort_colors.rs:19:28 [INFO] [stderr] | [INFO] [stderr] 19 | let value = if 0 <= i && i < counts[0] { [INFO] [stderr] | ^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_comparisons)]` on by default [INFO] [stderr] [INFO] [stderr] warning: 39 warnings emitted [INFO] [stderr] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 4.32s [INFO] running `"docker" "inspect" "1b52f9e32641125538d377aead5aa27076ae1b46aee4d7f57175326acd6c85e2"` [INFO] running `"docker" "rm" "-f" "1b52f9e32641125538d377aead5aa27076ae1b46aee4d7f57175326acd6c85e2"` [INFO] [stdout] 1b52f9e32641125538d377aead5aa27076ae1b46aee4d7f57175326acd6c85e2 [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "+beta-2020-06-03" "test" "--frozen"` [INFO] [stdout] be5efe90cff6712d32f439c0aa72e3e29767d3fcadd60a66e646f8f1cd92ee55 [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" "be5efe90cff6712d32f439c0aa72e3e29767d3fcadd60a66e646f8f1cd92ee55"` [INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted [INFO] [stderr] warning: unused doc comment [INFO] [stderr] --> src/container_with_most_water.rs:22:9 [INFO] [stderr] | [INFO] [stderr] 22 | /// two pointer solution [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] 23 | [INFO] [stderr] 24 | let mut start = 0usize; [INFO] [stderr] | ----------------------- rustdoc does not generate documentation for statements [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_doc_comments)]` on by default [INFO] [stderr] [INFO] [stderr] warning: `...` range patterns are deprecated [INFO] [stderr] --> src/integer_to_roman.rs:15:21 [INFO] [stderr] | [INFO] [stderr] 15 | 1000...std::i32::MAX => ("M", 1000), [INFO] [stderr] | ^^^ help: use `..=` for an inclusive range [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default [INFO] [stderr] [INFO] [stderr] warning: `...` range patterns are deprecated [INFO] [stderr] --> src/integer_to_roman.rs:16:20 [INFO] [stderr] | [INFO] [stderr] 16 | 900...1000 => ("CM", 900), [INFO] [stderr] | ^^^ help: use `..=` for an inclusive range [INFO] [stderr] [INFO] [stderr] warning: `...` range patterns are deprecated [INFO] [stderr] --> src/integer_to_roman.rs:17:20 [INFO] [stderr] | [INFO] [stderr] 17 | 500...900 => ("D", 500), [INFO] [stderr] | ^^^ help: use `..=` for an inclusive range [INFO] [stderr] [INFO] [stderr] warning: `...` range patterns are deprecated [INFO] [stderr] --> src/integer_to_roman.rs:18:20 [INFO] [stderr] | [INFO] [stderr] 18 | 400...500 => ("CD", 400), [INFO] [stderr] | ^^^ help: use `..=` for an inclusive range [INFO] [stderr] [INFO] [stderr] warning: `...` range patterns are deprecated [INFO] [stderr] --> src/integer_to_roman.rs:19:20 [INFO] [stderr] | [INFO] [stderr] 19 | 100...400 => ("C", 100), [INFO] [stderr] | ^^^ help: use `..=` for an inclusive range [INFO] [stderr] [INFO] [stderr] warning: `...` range patterns are deprecated [INFO] [stderr] --> src/integer_to_roman.rs:20:19 [INFO] [stderr] | [INFO] [stderr] 20 | 90...100 => ("XC", 90), [INFO] [stderr] | ^^^ help: use `..=` for an inclusive range [INFO] [stderr] [INFO] [stderr] warning: `...` range patterns are deprecated [INFO] [stderr] --> src/integer_to_roman.rs:21:19 [INFO] [stderr] | [INFO] [stderr] 21 | 50...90 => ("L", 50), [INFO] [stderr] | ^^^ help: use `..=` for an inclusive range [INFO] [stderr] [INFO] [stderr] warning: `...` range patterns are deprecated [INFO] [stderr] --> src/integer_to_roman.rs:22:19 [INFO] [stderr] | [INFO] [stderr] 22 | 40...50 => ("XL", 40), [INFO] [stderr] | ^^^ help: use `..=` for an inclusive range [INFO] [stderr] [INFO] [stderr] warning: `...` range patterns are deprecated [INFO] [stderr] --> src/integer_to_roman.rs:23:19 [INFO] [stderr] | [INFO] [stderr] 23 | 10...40 => ("X", 10), [INFO] [stderr] | ^^^ help: use `..=` for an inclusive range [INFO] [stderr] [INFO] [stderr] warning: `...` range patterns are deprecated [INFO] [stderr] --> src/integer_to_roman.rs:25:18 [INFO] [stderr] | [INFO] [stderr] 25 | 5...9 => ("V", 5), [INFO] [stderr] | ^^^ help: use `..=` for an inclusive range [INFO] [stderr] [INFO] [stderr] warning: `...` range patterns are deprecated [INFO] [stderr] --> src/integer_to_roman.rs:27:18 [INFO] [stderr] | [INFO] [stderr] 27 | 1...4 => ("I", 1), [INFO] [stderr] | ^^^ help: use `..=` for an inclusive range [INFO] [stderr] [INFO] [stderr] warning: `...` range patterns are deprecated [INFO] [stderr] --> src/nim_game.rs:11:14 [INFO] [stderr] | [INFO] [stderr] 11 | 1...3 => true, [INFO] [stderr] | ^^^ help: use `..=` for an inclusive range [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::i32` [INFO] [stderr] --> src/reverse_integer.rs:11:13 [INFO] [stderr] | [INFO] [stderr] 11 | use std::i32; [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::cmp::min` [INFO] [stderr] --> src/three_sum_closest.rs:13:13 [INFO] [stderr] | [INFO] [stderr] 13 | use std::cmp::min; [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: multiple patterns covering the same range [INFO] [stderr] --> src/integer_to_roman.rs:16:17 [INFO] [stderr] | [INFO] [stderr] 15 | 1000...std::i32::MAX => ("M", 1000), [INFO] [stderr] | -------------------- this range overlaps on `1000i32` [INFO] [stderr] 16 | 900...1000 => ("CM", 900), [INFO] [stderr] | ^^^^^^^^^^ overlapping patterns [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(overlapping_patterns)]` on by default [INFO] [stderr] [INFO] [stderr] warning: multiple patterns covering the same range [INFO] [stderr] --> src/integer_to_roman.rs:17:17 [INFO] [stderr] | [INFO] [stderr] 16 | 900...1000 => ("CM", 900), [INFO] [stderr] | ---------- this range overlaps on `900i32` [INFO] [stderr] 17 | 500...900 => ("D", 500), [INFO] [stderr] | ^^^^^^^^^ overlapping patterns [INFO] [stderr] [INFO] [stderr] warning: multiple patterns covering the same range [INFO] [stderr] --> src/integer_to_roman.rs:18:17 [INFO] [stderr] | [INFO] [stderr] 17 | 500...900 => ("D", 500), [INFO] [stderr] | --------- this range overlaps on `500i32` [INFO] [stderr] 18 | 400...500 => ("CD", 400), [INFO] [stderr] | ^^^^^^^^^ overlapping patterns [INFO] [stderr] [INFO] [stderr] warning: multiple patterns covering the same range [INFO] [stderr] --> src/integer_to_roman.rs:19:17 [INFO] [stderr] | [INFO] [stderr] 18 | 400...500 => ("CD", 400), [INFO] [stderr] | --------- this range overlaps on `400i32` [INFO] [stderr] 19 | 100...400 => ("C", 100), [INFO] [stderr] | ^^^^^^^^^ overlapping patterns [INFO] [stderr] [INFO] [stderr] warning: multiple patterns covering the same range [INFO] [stderr] --> src/integer_to_roman.rs:20:17 [INFO] [stderr] | [INFO] [stderr] 19 | 100...400 => ("C", 100), [INFO] [stderr] | --------- this range overlaps on `100i32` [INFO] [stderr] 20 | 90...100 => ("XC", 90), [INFO] [stderr] | ^^^^^^^^ overlapping patterns [INFO] [stderr] [INFO] [stderr] warning: multiple patterns covering the same range [INFO] [stderr] --> src/integer_to_roman.rs:21:17 [INFO] [stderr] | [INFO] [stderr] 20 | 90...100 => ("XC", 90), [INFO] [stderr] | -------- this range overlaps on `90i32` [INFO] [stderr] 21 | 50...90 => ("L", 50), [INFO] [stderr] | ^^^^^^^ overlapping patterns [INFO] [stderr] [INFO] [stderr] warning: multiple patterns covering the same range [INFO] [stderr] --> src/integer_to_roman.rs:22:17 [INFO] [stderr] | [INFO] [stderr] 21 | 50...90 => ("L", 50), [INFO] [stderr] | ------- this range overlaps on `50i32` [INFO] [stderr] 22 | 40...50 => ("XL", 40), [INFO] [stderr] | ^^^^^^^ overlapping patterns [INFO] [stderr] [INFO] [stderr] warning: multiple patterns covering the same range [INFO] [stderr] --> src/integer_to_roman.rs:23:17 [INFO] [stderr] | [INFO] [stderr] 22 | 40...50 => ("XL", 40), [INFO] [stderr] | ------- this range overlaps on `40i32` [INFO] [stderr] 23 | 10...40 => ("X", 10), [INFO] [stderr] | ^^^^^^^ overlapping patterns [INFO] [stderr] [INFO] [stderr] warning: multiple patterns covering the same range [INFO] [stderr] --> src/integer_to_roman.rs:25:17 [INFO] [stderr] | [INFO] [stderr] 24 | 9 => ("IX", 9), [INFO] [stderr] | - this range overlaps on `9i32` [INFO] [stderr] 25 | 5...9 => ("V", 5), [INFO] [stderr] | ^^^^^ overlapping patterns [INFO] [stderr] [INFO] [stderr] warning: multiple patterns covering the same range [INFO] [stderr] --> src/integer_to_roman.rs:27:17 [INFO] [stderr] | [INFO] [stderr] 26 | 4 => ("IV", 4), [INFO] [stderr] | - this range overlaps on `4i32` [INFO] [stderr] 27 | 1...4 => ("I", 1), [INFO] [stderr] | ^^^^^ overlapping patterns [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/sudoku_solver.rs:106:13 [INFO] [stderr] | [INFO] [stderr] 106 | let mut expected_solution = 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/sudoku_solver.rs:122:13 [INFO] [stderr] | [INFO] [stderr] 122 | let mut expected_solution = vec![ [INFO] [stderr] | ----^^^^^^^^^^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: cannot borrow `map` as mutable because it is also borrowed as immutable [INFO] [stderr] --> src/three_sum.rs:18:13 [INFO] [stderr] | [INFO] [stderr] 17 | let value = map.get(&x).unwrap_or(&0); [INFO] [stderr] | --- immutable borrow occurs here [INFO] [stderr] 18 | map.insert(x, *value + 1); [INFO] [stderr] | ^^^ ------ immutable borrow later used here [INFO] [stderr] | | [INFO] [stderr] | mutable borrow occurs here [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(mutable_borrow_reservation_conflict)]` on by default [INFO] [stderr] = warning: this borrowing pattern was not meant to be accepted, and may become a hard error in the future [INFO] [stderr] = note: for more information, see issue #59159 [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/combination_sum.rs:16:25 [INFO] [stderr] | [INFO] [stderr] 16 | let mut vec1 = Solution::combination_sum(candidates.clone(), target - *x); [INFO] [stderr] | ----^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `Solution` [INFO] [stderr] --> src/big_countries.rs:7:8 [INFO] [stderr] | [INFO] [stderr] 7 | struct Solution; [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: function is never used: `main` [INFO] [stderr] --> src/big_countries.rs:10:4 [INFO] [stderr] | [INFO] [stderr] 10 | fn main() { [INFO] [stderr] | ^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `new` [INFO] [stderr] --> src/list.rs:9:8 [INFO] [stderr] | [INFO] [stderr] 9 | fn new(val: i32) -> Self { [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `new` [INFO] [stderr] --> src/merge_two_binary_trees.rs:17:12 [INFO] [stderr] | [INFO] [stderr] 17 | pub fn new(val: i32) -> Self { [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `Solution` [INFO] [stderr] --> src/merge_two_binary_trees.rs:29:8 [INFO] [stderr] | [INFO] [stderr] 29 | struct Solution; [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `merge_trees` [INFO] [stderr] --> src/merge_two_binary_trees.rs:32:12 [INFO] [stderr] | [INFO] [stderr] 32 | pub fn merge_trees( [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `RecentCounter` [INFO] [stderr] --> src/number_of_recent_calls.rs:6:8 [INFO] [stderr] | [INFO] [stderr] 6 | struct RecentCounter { [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `new` [INFO] [stderr] --> src/number_of_recent_calls.rs:12:8 [INFO] [stderr] | [INFO] [stderr] 12 | fn new() -> Self { [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `ping` [INFO] [stderr] --> src/number_of_recent_calls.rs:16:8 [INFO] [stderr] | [INFO] [stderr] 16 | fn ping(&mut self, t: i32) -> i32 { [INFO] [stderr] | ^^^^ [INFO] [stderr] [INFO] [stderr] warning: comparison is useless due to type limits [INFO] [stderr] --> src/sort_colors.rs:19:28 [INFO] [stderr] | [INFO] [stderr] 19 | let value = if 0 <= i && i < counts[0] { [INFO] [stderr] | ^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_comparisons)]` on by default [INFO] [stderr] [INFO] [stderr] warning: 39 warnings emitted [INFO] [stderr] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.06s [INFO] [stderr] Running /opt/rustwide/target/debug/deps/leetcode-20dd3951cdf47815 [INFO] [stdout] [INFO] [stdout] running 101 tests [INFO] [stdout] test add_two_number::test::should_return_708 ... ok [INFO] [stdout] test add_two_number::test::should_return_01 ... ok [INFO] [stdout] test array_partition_i::test1 ... ok [INFO] [stdout] test container_with_most_water::test::test ... ok [INFO] [stdout] test combination_sum::all_test ... ok [INFO] [stdout] test divide_two_integers::test::test1 ... ok [INFO] [stdout] test di_string_match::idid ... ok [INFO] [stdout] test di_string_match::ddi ... ok [INFO] [stdout] test divide_two_integers::test::test2 ... ok [INFO] [stdout] test di_string_match::iii ... ok [INFO] [stdout] test divide_two_integers::test::test9 ... ok [INFO] [stdout] test flipping_an_image::test1 ... ok [INFO] [stdout] test generate_parentheses::test::test_n_equals_0 ... ok [INFO] [stdout] test implement_strstr::test::test7 ... ok [INFO] [stdout] test generate_parentheses::test::test ... ok [INFO] [stdout] test implement_strstr::test::test6 ... ok [INFO] [stdout] test implement_strstr::test::test4 ... ok [INFO] [stdout] test divide_two_integers::test::test4 ... ok [INFO] [stdout] test divide_two_integers::test::test8 ... ok [INFO] [stdout] test hamming_distance::test ... ok [INFO] [stdout] test divide_two_integers::test::test5 ... ok [INFO] [stdout] test divide_two_integers::test::test6 ... ok [INFO] [stdout] test divide_two_integers::test::test7 ... ok [INFO] [stdout] test implement_strstr::test::test1 ... ok [INFO] [stdout] test implement_strstr::test::test5 ... ok [INFO] [stdout] test flipping_an_image::test2 ... ok [INFO] [stdout] test implement_strstr::test::test3 ... ok [INFO] [stdout] test integer_to_roman::test::should_return_lviii_given_58 ... ok [INFO] [stdout] test integer_to_roman::test::should_return_iv_given_4 ... ok [INFO] [stdout] test integer_to_roman::test::should_return_mcmxciv_given_1994 ... ok [INFO] [stdout] test implement_strstr::test::test2 ... ok [INFO] [stdout] test divide_two_integers::test::test3 ... ok [INFO] [stdout] test letter_combinations_of_a_phone_number::test::should_work_with_one_letter ... ok [INFO] [stdout] test integer_to_roman::test::should_return_ix_given_9 ... ok [INFO] [stdout] test letter_combinations_of_a_phone_number::test::should_work_with_two_letter ... ok [INFO] [stdout] test integer_to_roman::test::should_return_iii_given_3 ... ok [INFO] [stdout] test longest_substring_without_repeating_characters::test::should_return_0_given_empty ... ok [INFO] [stdout] test longest_substring_without_repeating_characters::test::should_return_3_given_pwwkew ... ok [INFO] [stdout] test longest_substring_without_repeating_characters::test::should_return_0_given_empty_string ... ok [INFO] [stdout] test letter_combinations_of_a_phone_number::test::should_work_with_two_letter_with_invalid_letter ... ok [INFO] [stdout] test jewels_and_stones::all_test ... ok [INFO] [stdout] test longest_substring_without_repeating_characters::test::should_return_1_given_bbbbb ... ok [INFO] [stdout] test longest_substring_without_repeating_characters::test::should_return_3_given_abcabcbb ... ok [INFO] [stdout] test nim_game::test ... ok [INFO] [stdout] test palindrome_number::test::should_return_true_given_zero ... ok [INFO] [stdout] test palindrome_number::test::should_return_true_given_121 ... ok [INFO] [stdout] test palindrome_number::test::should_return_false_given_negative_number ... ok [INFO] [stdout] test peak_index_in_a_mountain_array::test1 ... ok [INFO] [stdout] test peak_index_in_a_mountain_array::test2 ... ok [INFO] [stdout] test remove_element::test::test1 ... ok [INFO] [stdout] test remove_element::test::test2 ... ok [INFO] [stdout] test reverse_integer::test::should_return_321_given_123 ... ok [INFO] [stdout] test remove_duplicates_from_sorted_array::test::should_return_5_given_0_0_1_1_1_2_2_3_3_4 ... ok [INFO] [stdout] test robot_return_to_origin::test ... ok [INFO] [stdout] test remove_duplicates_from_sorted_array::test::should_return_2_given_1_1_2 ... ok [INFO] [stdout] test reverse_integer::test::should_return_0_given_1534236469 ... ok [INFO] [stdout] test search_in_rotated_sorted_array::test::test3 ... ok [INFO] [stdout] test search_in_rotated_sorted_array::test::test2 ... ok [INFO] [stdout] test search_in_rotated_sorted_array::test::test4 ... ok [INFO] [stdout] test reverse_integer::test::should_return_negative_321_given_negative_123 ... ok [INFO] [stdout] test reverse_integer::test::should_return_21_given_120 ... ok [INFO] [stdout] test search_in_rotated_sorted_array::test::test ... ok [INFO] [stdout] test search_in_rotated_sorted_array::test::test5 ... ok [INFO] [stdout] test search_in_rotated_sorted_array::test::test6 ... ok [INFO] [stdout] test self_dividing_numbers::test1 ... ok [INFO] [stdout] test search_in_rotated_sorted_array::test::test_rotated ... ok [INFO] [stdout] test sort_array_by_parity::test1 ... ok [INFO] [stdout] test sort_colors::test::should_sort_given_non_sorted_vec ... ok [INFO] [stdout] test string_to_integer_atoi::test::should_work_with_prefix_space ... ok [INFO] [stdout] test string_to_integer_atoi::test::test ... ok [INFO] [stdout] test string_to_integer_atoi::test::should_work_with_add_mark ... ok [INFO] [stdout] test string_to_integer_atoi::test::should_work_with_minus_mark ... ok [INFO] [stdout] test string_to_integer_atoi::test::should_get_zero_with_internal_space ... ok [INFO] [stdout] test string_to_integer_atoi::test::should_work_with_postfix_external_words ... ok [INFO] [stdout] test string_to_integer_atoi::test::should_check_overflow ... ok [INFO] [stdout] test palindrome_number::test::should_return_false_given_10 ... ok [INFO] [stdout] test string_to_integer_atoi::test::should_work_with_both_add_minus_mark ... ok [INFO] [stdout] test string_to_integer_atoi::test::should_get_zero_with_prefix_words ... ok [INFO] [stdout] test sort_array_by_parity_ii::test1 ... ok [INFO] [stdout] test string_to_integer_atoi::test::should_work_with_normal_number ... ok [INFO] [stdout] test to_lower_case::test ... ok [INFO] [stdout] test two_sum::test1 ... ok [INFO] [stdout] test valid_parentheses::test::test5 ... ok [INFO] [stdout] test valid_parentheses::test::test2 ... ok [INFO] [stdout] test valid_sudoku::test::test2 ... ok [INFO] [stdout] test three_sum::test::test2 ... ok [INFO] [stdout] test valid_parentheses::test::test1 ... ok [INFO] [stdout] test valid_parentheses::test::test3 ... ok [INFO] [stdout] test valid_sudoku::test::test ... ok [INFO] [stdout] test unique_morse_code_words::test1 ... ok [INFO] [stdout] test unique_email_addresses::test ... ok [INFO] [stdout] test zigzag_conversion::test::should_it_works_too ... ok [INFO] [stdout] test two_sum::test2 ... ok [INFO] [stdout] test three_sum_closest::test::test ... ok [INFO] [stdout] test three_sum::test::test ... ok [INFO] [stdout] test zigzag_conversion::test::should_it_works ... ok [INFO] [stdout] test sudoku_solver::test::test_invalid_method ... ok [INFO] [stdout] test valid_parentheses::test::test4 ... ok [INFO] [stdout] test zigzag_conversion::test::show_return_itself_when_number_is_1 ... ok [INFO] [stdout] test two_sum::test3 ... ok [INFO] [stdout] test sudoku_solver::test::test ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 101 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out [INFO] [stdout] [INFO] running `"docker" "inspect" "be5efe90cff6712d32f439c0aa72e3e29767d3fcadd60a66e646f8f1cd92ee55"` [INFO] running `"docker" "rm" "-f" "be5efe90cff6712d32f439c0aa72e3e29767d3fcadd60a66e646f8f1cd92ee55"` [INFO] [stdout] be5efe90cff6712d32f439c0aa72e3e29767d3fcadd60a66e646f8f1cd92ee55