[INFO] cloning repository https://github.com/SuanFaRuoJi/coding_exercise_rust [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/SuanFaRuoJi/coding_exercise_rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSuanFaRuoJi%2Fcoding_exercise_rust", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSuanFaRuoJi%2Fcoding_exercise_rust'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 05c1092d4cdb09b9983e1b6d8abdc90d3886c7d1 [INFO] testing SuanFaRuoJi/coding_exercise_rust against beta-2021-01-01 for beta-1.50-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSuanFaRuoJi%2Fcoding_exercise_rust" "/workspace/builds/worker-0/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/SuanFaRuoJi/coding_exercise_rust on toolchain beta-2021-01-01 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/SuanFaRuoJi/coding_exercise_rust [INFO] finished tweaking git repo https://github.com/SuanFaRuoJi/coding_exercise_rust [INFO] tweaked toml for git repo https://github.com/SuanFaRuoJi/coding_exercise_rust written to /workspace/builds/worker-0/source/Cargo.toml [INFO] crate git repo https://github.com/SuanFaRuoJi/coding_exercise_rust already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] f97e99051c343c1987993892b957e61176f75c8da61701a89f8ac46938d29cb2 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "f97e99051c343c1987993892b957e61176f75c8da61701a89f8ac46938d29cb2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "f97e99051c343c1987993892b957e61176f75c8da61701a89f8ac46938d29cb2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f97e99051c343c1987993892b957e61176f75c8da61701a89f8ac46938d29cb2", kill_on_drop: false }` [INFO] [stdout] f97e99051c343c1987993892b957e61176f75c8da61701a89f8ac46938d29cb2 [INFO] running `Command { std: "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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] 795847750e120b2043510ad599e86c53b38e4bedd666b1f6ff615d4ca110e662 [INFO] running `Command { std: "docker" "start" "-a" "795847750e120b2043510ad599e86c53b38e4bedd666b1f6ff615d4ca110e662", kill_on_drop: false }` [INFO] [stderr] Compiling leetcode v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: type `fraction` should have an upper camel case name [INFO] [stdout] --> src/max_points_on_a_line_149.rs:17:8 [INFO] [stdout] | [INFO] [stdout] 17 | struct fraction { [INFO] [stdout] | ^^^^^^^^ help: convert the identifier to upper camel case (notice the capitalization): `Fraction` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_camel_case_types)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::convert::TryInto` [INFO] [stdout] --> src/evaluate_reverse_polish_notation_150.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use std::convert::TryInto; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::convert::TryInto` [INFO] [stdout] --> src/valid_triangle_number_611.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use std::convert::TryInto; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::convert::TryInto` [INFO] [stdout] --> src/graph_valid_tree_261.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use std::convert::TryInto; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::borrow::BorrowMut` [INFO] [stdout] --> src/shortest_word_distance_2_244.rs:2:5 [INFO] [stdout] | [INFO] [stdout] 2 | use std::borrow::BorrowMut; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::borrow::Borrow` [INFO] [stdout] --> src/preorder_verification_255.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use std::borrow::Borrow; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around function argument [INFO] [stdout] --> src/maximal_square_221.rs:29:37 [INFO] [stdout] | [INFO] [stdout] 29 | let cur_width = min((right - left - 1), top_height); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_parens)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around function argument [INFO] [stdout] --> src/maximal_square_221.rs:45:33 [INFO] [stdout] | [INFO] [stdout] 45 | let cur_width = min((right - left - 1), top_height); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `prev` [INFO] [stdout] --> src/graph_valid_tree_261.rs:16:9 [INFO] [stdout] | [INFO] [stdout] 16 | let mut prev = -1; [INFO] [stdout] | ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_prev` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `key` [INFO] [stdout] --> src/all_O_one_data_structure_432.rs:26:23 [INFO] [stdout] | [INFO] [stdout] 26 | fn inc(&mut self, key: String) { [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_key` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `key` [INFO] [stdout] --> src/all_O_one_data_structure_432.rs:30:23 [INFO] [stdout] | [INFO] [stdout] 30 | fn dec(&mut self, key: String) { [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_key` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `j` is never read [INFO] [stdout] --> src/max_sum_of_reactangle_no_larger_than_k_363.rs:2:31 [INFO] [stdout] | [INFO] [stdout] 2 | let mut i: usize = 0; let mut j: usize = 0; [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_assignments)]` on by default [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `column_sum` is never read [INFO] [stdout] --> src/max_sum_of_reactangle_no_larger_than_k_363.rs:8:9 [INFO] [stdout] | [INFO] [stdout] 8 | let mut column_sum = vec![0; width]; [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/graph_valid_tree_261.rs:16:9 [INFO] [stdout] | [INFO] [stdout] 16 | let mut prev = -1; [INFO] [stdout] | ----^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/three_sum_smaller.rs:9:13 [INFO] [stdout] | [INFO] [stdout] 9 | let mut partial_target = target - nums[index]; [INFO] [stdout] | ----^^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `backtrace` [INFO] [stdout] --> src/longest_palindrome_subsequence_516.rs:34:4 [INFO] [stdout] | [INFO] [stdout] 34 | fn backtrace(string: &Vec, left: usize, right: usize, dp: &mut Vec>) -> i32 { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct is never constructed: `AllOne` [INFO] [stdout] --> src/all_O_one_data_structure_432.rs:3:8 [INFO] [stdout] | [INFO] [stdout] 3 | struct AllOne { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `new` [INFO] [stdout] --> src/all_O_one_data_structure_432.rs:17:8 [INFO] [stdout] | [INFO] [stdout] 17 | fn new() -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `inc` [INFO] [stdout] --> src/all_O_one_data_structure_432.rs:26:8 [INFO] [stdout] | [INFO] [stdout] 26 | fn inc(&mut self, key: String) { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `dec` [INFO] [stdout] --> src/all_O_one_data_structure_432.rs:30:8 [INFO] [stdout] | [INFO] [stdout] 30 | fn dec(&mut self, key: String) { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `get_max_key` [INFO] [stdout] --> src/all_O_one_data_structure_432.rs:35:8 [INFO] [stdout] | [INFO] [stdout] 35 | fn get_max_key(&self) -> String { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `get_min_key` [INFO] [stdout] --> src/all_O_one_data_structure_432.rs:40:8 [INFO] [stdout] | [INFO] [stdout] 40 | fn get_min_key(&self) -> String { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: module `all_O_one_data_structure_432` should have a snake case name [INFO] [stdout] --> src/lib.rs:27:9 [INFO] [stdout] | [INFO] [stdout] 27 | pub mod all_O_one_data_structure_432; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case (notice the capitalization): `all_o_one_data_structure_432` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_snake_case)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 23 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 1.99s [INFO] running `Command { std: "docker" "inspect" "795847750e120b2043510ad599e86c53b38e4bedd666b1f6ff615d4ca110e662", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "795847750e120b2043510ad599e86c53b38e4bedd666b1f6ff615d4ca110e662", kill_on_drop: false }` [INFO] [stdout] 795847750e120b2043510ad599e86c53b38e4bedd666b1f6ff615d4ca110e662 [INFO] running `Command { std: "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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 6bcf979ea826779e5a6f7a551b73a6ed87e0a3d8365de730a2ece24745dd833c [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "6bcf979ea826779e5a6f7a551b73a6ed87e0a3d8365de730a2ece24745dd833c", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stdout] warning: type `fraction` should have an upper camel case name [INFO] [stdout] --> src/max_points_on_a_line_149.rs:17:8 [INFO] [stdout] | [INFO] [stdout] 17 | struct fraction { [INFO] [stdout] | ^^^^^^^^ help: convert the identifier to upper camel case (notice the capitalization): `Fraction` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_camel_case_types)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::convert::TryInto` [INFO] [stdout] --> src/evaluate_reverse_polish_notation_150.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use std::convert::TryInto; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::convert::TryInto` [INFO] [stdout] --> src/valid_triangle_number_611.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use std::convert::TryInto; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::convert::TryInto` [INFO] [stdout] --> src/graph_valid_tree_261.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use std::convert::TryInto; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::borrow::BorrowMut` [INFO] [stdout] --> src/shortest_word_distance_2_244.rs:2:5 [INFO] [stdout] | [INFO] [stdout] 2 | use std::borrow::BorrowMut; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::borrow::Borrow` [INFO] [stdout] --> src/preorder_verification_255.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use std::borrow::Borrow; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around function argument [INFO] [stdout] --> src/maximal_square_221.rs:29:37 [INFO] [stdout] | [INFO] [stdout] 29 | let cur_width = min((right - left - 1), top_height); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_parens)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around function argument [INFO] [stdout] --> src/maximal_square_221.rs:45:33 [INFO] [stdout] | [INFO] [stdout] 45 | let cur_width = min((right - left - 1), top_height); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `prev` [INFO] [stdout] --> src/graph_valid_tree_261.rs:16:9 [INFO] [stdout] | [INFO] [stdout] 16 | let mut prev = -1; [INFO] [stdout] | ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_prev` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `key` [INFO] [stdout] --> src/all_O_one_data_structure_432.rs:26:23 [INFO] [stdout] | [INFO] [stdout] 26 | fn inc(&mut self, key: String) { [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_key` [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling leetcode v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused variable: `key` [INFO] [stdout] --> src/all_O_one_data_structure_432.rs:30:23 [INFO] [stdout] | [INFO] [stdout] 30 | fn dec(&mut self, key: String) { [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_key` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `j` is never read [INFO] [stdout] --> src/max_sum_of_reactangle_no_larger_than_k_363.rs:2:31 [INFO] [stdout] | [INFO] [stdout] 2 | let mut i: usize = 0; let mut j: usize = 0; [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_assignments)]` on by default [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `column_sum` is never read [INFO] [stdout] --> src/max_sum_of_reactangle_no_larger_than_k_363.rs:8:9 [INFO] [stdout] | [INFO] [stdout] 8 | let mut column_sum = vec![0; width]; [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/graph_valid_tree_261.rs:16:9 [INFO] [stdout] | [INFO] [stdout] 16 | let mut prev = -1; [INFO] [stdout] | ----^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/three_sum_smaller.rs:9:13 [INFO] [stdout] | [INFO] [stdout] 9 | let mut partial_target = target - nums[index]; [INFO] [stdout] | ----^^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `backtrace` [INFO] [stdout] --> src/longest_palindrome_subsequence_516.rs:34:4 [INFO] [stdout] | [INFO] [stdout] 34 | fn backtrace(string: &Vec, left: usize, right: usize, dp: &mut Vec>) -> i32 { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct is never constructed: `AllOne` [INFO] [stdout] --> src/all_O_one_data_structure_432.rs:3:8 [INFO] [stdout] | [INFO] [stdout] 3 | struct AllOne { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `new` [INFO] [stdout] --> src/all_O_one_data_structure_432.rs:17:8 [INFO] [stdout] | [INFO] [stdout] 17 | fn new() -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `inc` [INFO] [stdout] --> src/all_O_one_data_structure_432.rs:26:8 [INFO] [stdout] | [INFO] [stdout] 26 | fn inc(&mut self, key: String) { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `dec` [INFO] [stdout] --> src/all_O_one_data_structure_432.rs:30:8 [INFO] [stdout] | [INFO] [stdout] 30 | fn dec(&mut self, key: String) { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `get_max_key` [INFO] [stdout] --> src/all_O_one_data_structure_432.rs:35:8 [INFO] [stdout] | [INFO] [stdout] 35 | fn get_max_key(&self) -> String { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `get_min_key` [INFO] [stdout] --> src/all_O_one_data_structure_432.rs:40:8 [INFO] [stdout] | [INFO] [stdout] 40 | fn get_min_key(&self) -> String { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: module `all_O_one_data_structure_432` should have a snake case name [INFO] [stdout] --> src/lib.rs:27:9 [INFO] [stdout] | [INFO] [stdout] 27 | pub mod all_O_one_data_structure_432; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case (notice the capitalization): `all_o_one_data_structure_432` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_snake_case)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 23 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: type `fraction` should have an upper camel case name [INFO] [stdout] --> src/max_points_on_a_line_149.rs:17:8 [INFO] [stdout] | [INFO] [stdout] 17 | struct fraction { [INFO] [stdout] | ^^^^^^^^ help: convert the identifier to upper camel case (notice the capitalization): `Fraction` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_camel_case_types)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::convert::TryInto` [INFO] [stdout] --> src/evaluate_reverse_polish_notation_150.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use std::convert::TryInto; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::convert::TryInto` [INFO] [stdout] --> src/valid_triangle_number_611.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use std::convert::TryInto; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::convert::TryInto` [INFO] [stdout] --> src/graph_valid_tree_261.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use std::convert::TryInto; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::borrow::BorrowMut` [INFO] [stdout] --> src/shortest_word_distance_2_244.rs:2:5 [INFO] [stdout] | [INFO] [stdout] 2 | use std::borrow::BorrowMut; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::borrow::Borrow` [INFO] [stdout] --> src/preorder_verification_255.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use std::borrow::Borrow; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around function argument [INFO] [stdout] --> src/maximal_square_221.rs:29:37 [INFO] [stdout] | [INFO] [stdout] 29 | let cur_width = min((right - left - 1), top_height); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_parens)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around function argument [INFO] [stdout] --> src/maximal_square_221.rs:45:33 [INFO] [stdout] | [INFO] [stdout] 45 | let cur_width = min((right - left - 1), top_height); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `prev` [INFO] [stdout] --> src/graph_valid_tree_261.rs:16:9 [INFO] [stdout] | [INFO] [stdout] 16 | let mut prev = -1; [INFO] [stdout] | ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_prev` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `key` [INFO] [stdout] --> src/all_O_one_data_structure_432.rs:26:23 [INFO] [stdout] | [INFO] [stdout] 26 | fn inc(&mut self, key: String) { [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_key` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `key` [INFO] [stdout] --> src/all_O_one_data_structure_432.rs:30:23 [INFO] [stdout] | [INFO] [stdout] 30 | fn dec(&mut self, key: String) { [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_key` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `j` is never read [INFO] [stdout] --> src/max_sum_of_reactangle_no_larger_than_k_363.rs:2:31 [INFO] [stdout] | [INFO] [stdout] 2 | let mut i: usize = 0; let mut j: usize = 0; [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_assignments)]` on by default [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `column_sum` is never read [INFO] [stdout] --> src/max_sum_of_reactangle_no_larger_than_k_363.rs:8:9 [INFO] [stdout] | [INFO] [stdout] 8 | let mut column_sum = vec![0; width]; [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/graph_valid_tree_261.rs:16:9 [INFO] [stdout] | [INFO] [stdout] 16 | let mut prev = -1; [INFO] [stdout] | ----^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/three_sum_smaller.rs:9:13 [INFO] [stdout] | [INFO] [stdout] 9 | let mut partial_target = target - nums[index]; [INFO] [stdout] | ----^^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `backtrace` [INFO] [stdout] --> src/longest_palindrome_subsequence_516.rs:34:4 [INFO] [stdout] | [INFO] [stdout] 34 | fn backtrace(string: &Vec, left: usize, right: usize, dp: &mut Vec>) -> i32 { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct is never constructed: `AllOne` [INFO] [stdout] --> src/all_O_one_data_structure_432.rs:3:8 [INFO] [stdout] | [INFO] [stdout] 3 | struct AllOne { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `new` [INFO] [stdout] --> src/all_O_one_data_structure_432.rs:17:8 [INFO] [stdout] | [INFO] [stdout] 17 | fn new() -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `inc` [INFO] [stdout] --> src/all_O_one_data_structure_432.rs:26:8 [INFO] [stdout] | [INFO] [stdout] 26 | fn inc(&mut self, key: String) { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `dec` [INFO] [stdout] --> src/all_O_one_data_structure_432.rs:30:8 [INFO] [stdout] | [INFO] [stdout] 30 | fn dec(&mut self, key: String) { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `get_max_key` [INFO] [stdout] --> src/all_O_one_data_structure_432.rs:35:8 [INFO] [stdout] | [INFO] [stdout] 35 | fn get_max_key(&self) -> String { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `get_min_key` [INFO] [stdout] --> src/all_O_one_data_structure_432.rs:40:8 [INFO] [stdout] | [INFO] [stdout] 40 | fn get_min_key(&self) -> String { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: module `all_O_one_data_structure_432` should have a snake case name [INFO] [stdout] --> src/lib.rs:27:9 [INFO] [stdout] | [INFO] [stdout] 27 | pub mod all_O_one_data_structure_432; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case (notice the capitalization): `all_o_one_data_structure_432` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_snake_case)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 23 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 2.91s [INFO] running `Command { std: "docker" "inspect" "6bcf979ea826779e5a6f7a551b73a6ed87e0a3d8365de730a2ece24745dd833c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "6bcf979ea826779e5a6f7a551b73a6ed87e0a3d8365de730a2ece24745dd833c", kill_on_drop: false }` [INFO] [stdout] 6bcf979ea826779e5a6f7a551b73a6ed87e0a3d8365de730a2ece24745dd833c [INFO] running `Command { std: "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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] d6b857013d15905f8b496789e274da15b18a4f162371d26e0659c1ffeaeb3601 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "d6b857013d15905f8b496789e274da15b18a4f162371d26e0659c1ffeaeb3601", kill_on_drop: false }` [INFO] [stderr] warning: type `fraction` should have an upper camel case name [INFO] [stderr] --> src/max_points_on_a_line_149.rs:17:8 [INFO] [stderr] | [INFO] [stderr] 17 | struct fraction { [INFO] [stderr] | ^^^^^^^^ help: convert the identifier to upper camel case (notice the capitalization): `Fraction` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(non_camel_case_types)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::convert::TryInto` [INFO] [stderr] --> src/evaluate_reverse_polish_notation_150.rs:1:5 [INFO] [stderr] | [INFO] [stderr] 1 | use std::convert::TryInto; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::convert::TryInto` [INFO] [stderr] --> src/valid_triangle_number_611.rs:1:5 [INFO] [stderr] | [INFO] [stderr] 1 | use std::convert::TryInto; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::convert::TryInto` [INFO] [stderr] --> src/graph_valid_tree_261.rs:1:5 [INFO] [stderr] | [INFO] [stderr] 1 | use std::convert::TryInto; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::borrow::BorrowMut` [INFO] [stderr] --> src/shortest_word_distance_2_244.rs:2:5 [INFO] [stderr] | [INFO] [stderr] 2 | use std::borrow::BorrowMut; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::borrow::Borrow` [INFO] [stderr] --> src/preorder_verification_255.rs:1:5 [INFO] [stderr] | [INFO] [stderr] 1 | use std::borrow::Borrow; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around function argument [INFO] [stderr] --> src/maximal_square_221.rs:29:37 [INFO] [stderr] | [INFO] [stderr] 29 | let cur_width = min((right - left - 1), top_height); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_parens)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around function argument [INFO] [stderr] --> src/maximal_square_221.rs:45:33 [INFO] [stderr] | [INFO] [stderr] 45 | let cur_width = min((right - left - 1), top_height); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stderr] [INFO] [stderr] warning: unused variable: `prev` [INFO] [stderr] --> src/graph_valid_tree_261.rs:16:9 [INFO] [stderr] | [INFO] [stderr] 16 | let mut prev = -1; [INFO] [stderr] | ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_prev` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `key` [INFO] [stderr] --> src/all_O_one_data_structure_432.rs:26:23 [INFO] [stderr] | [INFO] [stderr] 26 | fn inc(&mut self, key: String) { [INFO] [stderr] | ^^^ help: if this is intentional, prefix it with an underscore: `_key` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `key` [INFO] [stderr] --> src/all_O_one_data_structure_432.rs:30:23 [INFO] [stderr] | [INFO] [stderr] 30 | fn dec(&mut self, key: String) { [INFO] [stderr] | ^^^ help: if this is intentional, prefix it with an underscore: `_key` [INFO] [stderr] [INFO] [stderr] warning: value assigned to `j` is never read [INFO] [stderr] --> src/max_sum_of_reactangle_no_larger_than_k_363.rs:2:31 [INFO] [stderr] | [INFO] [stderr] 2 | let mut i: usize = 0; let mut j: usize = 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 `column_sum` is never read [INFO] [stderr] --> src/max_sum_of_reactangle_no_larger_than_k_363.rs:8:9 [INFO] [stderr] | [INFO] [stderr] 8 | let mut column_sum = vec![0; width]; [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/graph_valid_tree_261.rs:16:9 [INFO] [stderr] | [INFO] [stderr] 16 | let mut prev = -1; [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/three_sum_smaller.rs:9:13 [INFO] [stderr] | [INFO] [stderr] 9 | let mut partial_target = target - nums[index]; [INFO] [stderr] | ----^^^^^^^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: function is never used: `backtrace` [INFO] [stderr] --> src/longest_palindrome_subsequence_516.rs:34:4 [INFO] [stderr] | [INFO] [stderr] 34 | fn backtrace(string: &Vec, left: usize, right: usize, dp: &mut Vec>) -> i32 { [INFO] [stderr] | ^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `AllOne` [INFO] [stderr] --> src/all_O_one_data_structure_432.rs:3:8 [INFO] [stderr] | [INFO] [stderr] 3 | struct AllOne { [INFO] [stderr] | ^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `new` [INFO] [stderr] --> src/all_O_one_data_structure_432.rs:17:8 [INFO] [stderr] | [INFO] [stderr] 17 | fn new() -> Self { [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `inc` [INFO] [stderr] --> src/all_O_one_data_structure_432.rs:26:8 [INFO] [stderr] | [INFO] [stderr] 26 | fn inc(&mut self, key: String) { [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `dec` [INFO] [stderr] --> src/all_O_one_data_structure_432.rs:30:8 [INFO] [stderr] | [INFO] [stderr] 30 | fn dec(&mut self, key: String) { [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `get_max_key` [INFO] [stderr] --> src/all_O_one_data_structure_432.rs:35:8 [INFO] [stderr] | [INFO] [stderr] 35 | fn get_max_key(&self) -> String { [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `get_min_key` [INFO] [stderr] --> src/all_O_one_data_structure_432.rs:40:8 [INFO] [stderr] | [INFO] [stderr] 40 | fn get_min_key(&self) -> String { [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: module `all_O_one_data_structure_432` should have a snake case name [INFO] [stderr] --> src/lib.rs:27:9 [INFO] [stderr] | [INFO] [stderr] 27 | pub mod all_O_one_data_structure_432; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case (notice the capitalization): `all_o_one_data_structure_432` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(non_snake_case)]` on by default [INFO] [stderr] [INFO] [stderr] warning: 23 warnings emitted [INFO] [stderr] [INFO] [stderr] warning: type `fraction` should have an upper camel case name [INFO] [stderr] --> src/max_points_on_a_line_149.rs:17:8 [INFO] [stderr] | [INFO] [stderr] 17 | struct fraction { [INFO] [stderr] | ^^^^^^^^ help: convert the identifier to upper camel case (notice the capitalization): `Fraction` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(non_camel_case_types)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::convert::TryInto` [INFO] [stderr] --> src/evaluate_reverse_polish_notation_150.rs:1:5 [INFO] [stderr] | [INFO] [stderr] 1 | use std::convert::TryInto; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::convert::TryInto` [INFO] [stderr] --> src/valid_triangle_number_611.rs:1:5 [INFO] [stderr] | [INFO] [stderr] 1 | use std::convert::TryInto; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::convert::TryInto` [INFO] [stderr] --> src/graph_valid_tree_261.rs:1:5 [INFO] [stderr] | [INFO] [stderr] 1 | use std::convert::TryInto; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::borrow::BorrowMut` [INFO] [stderr] --> src/shortest_word_distance_2_244.rs:2:5 [INFO] [stderr] | [INFO] [stderr] 2 | use std::borrow::BorrowMut; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::borrow::Borrow` [INFO] [stderr] --> src/preorder_verification_255.rs:1:5 [INFO] [stderr] | [INFO] [stderr] 1 | use std::borrow::Borrow; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around function argument [INFO] [stderr] --> src/maximal_square_221.rs:29:37 [INFO] [stderr] | [INFO] [stderr] 29 | let cur_width = min((right - left - 1), top_height); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_parens)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around function argument [INFO] [stderr] --> src/maximal_square_221.rs:45:33 [INFO] [stderr] | [INFO] [stderr] 45 | let cur_width = min((right - left - 1), top_height); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stderr] [INFO] [stderr] warning: unused variable: `prev` [INFO] [stderr] --> src/graph_valid_tree_261.rs:16:9 [INFO] [stderr] | [INFO] [stderr] 16 | let mut prev = -1; [INFO] [stderr] | ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_prev` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `key` [INFO] [stderr] --> src/all_O_one_data_structure_432.rs:26:23 [INFO] [stderr] | [INFO] [stderr] 26 | fn inc(&mut self, key: String) { [INFO] [stderr] | ^^^ help: if this is intentional, prefix it with an underscore: `_key` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `key` [INFO] [stderr] --> src/all_O_one_data_structure_432.rs:30:23 [INFO] [stderr] | [INFO] [stderr] 30 | fn dec(&mut self, key: String) { [INFO] [stderr] | ^^^ help: if this is intentional, prefix it with an underscore: `_key` [INFO] [stderr] [INFO] [stderr] warning: value assigned to `j` is never read [INFO] [stderr] --> src/max_sum_of_reactangle_no_larger_than_k_363.rs:2:31 [INFO] [stderr] | [INFO] [stderr] 2 | let mut i: usize = 0; let mut j: usize = 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 `column_sum` is never read [INFO] [stderr] --> src/max_sum_of_reactangle_no_larger_than_k_363.rs:8:9 [INFO] [stderr] | [INFO] [stderr] 8 | let mut column_sum = vec![0; width]; [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/graph_valid_tree_261.rs:16:9 [INFO] [stderr] | [INFO] [stderr] 16 | let mut prev = -1; [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/three_sum_smaller.rs:9:13 [INFO] [stderr] | [INFO] [stderr] 9 | let mut partial_target = target - nums[index]; [INFO] [stderr] | ----^^^^^^^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: function is never used: `backtrace` [INFO] [stderr] --> src/longest_palindrome_subsequence_516.rs:34:4 [INFO] [stderr] | [INFO] [stderr] 34 | fn backtrace(string: &Vec, left: usize, right: usize, dp: &mut Vec>) -> i32 { [INFO] [stderr] | ^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `AllOne` [INFO] [stderr] --> src/all_O_one_data_structure_432.rs:3:8 [INFO] [stderr] | [INFO] [stderr] 3 | struct AllOne { [INFO] [stderr] | ^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `new` [INFO] [stderr] --> src/all_O_one_data_structure_432.rs:17:8 [INFO] [stderr] | [INFO] [stderr] 17 | fn new() -> Self { [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `inc` [INFO] [stderr] --> src/all_O_one_data_structure_432.rs:26:8 [INFO] [stderr] | [INFO] [stderr] 26 | fn inc(&mut self, key: String) { [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `dec` [INFO] [stderr] --> src/all_O_one_data_structure_432.rs:30:8 [INFO] [stderr] | [INFO] [stderr] 30 | fn dec(&mut self, key: String) { [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `get_max_key` [INFO] [stderr] --> src/all_O_one_data_structure_432.rs:35:8 [INFO] [stderr] | [INFO] [stderr] 35 | fn get_max_key(&self) -> String { [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `get_min_key` [INFO] [stderr] --> src/all_O_one_data_structure_432.rs:40:8 [INFO] [stderr] | [INFO] [stderr] 40 | fn get_min_key(&self) -> String { [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: module `all_O_one_data_structure_432` should have a snake case name [INFO] [stderr] --> src/lib.rs:27:9 [INFO] [stderr] | [INFO] [stderr] 27 | pub mod all_O_one_data_structure_432; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case (notice the capitalization): `all_o_one_data_structure_432` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(non_snake_case)]` on by default [INFO] [stderr] [INFO] [stderr] warning: 23 warnings emitted [INFO] [stderr] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.01s [INFO] [stderr] Running /opt/rustwide/target/debug/deps/leetcode-75acc5582f895b8b [INFO] [stdout] [INFO] [stdout] running 12 tests [INFO] [stdout] test tests::test_131 ... ok [INFO] [stdout] test tests::test_150 ... ok [INFO] [stdout] test tests::test_244 ... ok [INFO] [stdout] test tests::test_149 ... ok [INFO] [stdout] test tests::test_261 ... ok [INFO] [stdout] test tests::test_245 ... ok [INFO] [stdout] test tests::test_364 ... ok [INFO] [stdout] test tests::test_254 ... ok [INFO] [stdout] test tests::test_516 ... ok [INFO] [stdout] test tests::test_611 ... ok [INFO] [stdout] test tests::test_259 ... ok [INFO] [stdout] test tests::test_249 ... FAILED [INFO] [stdout] [INFO] [stdout] failures: [INFO] [stdout] [INFO] [stdout] ---- tests::test_249 stdout ---- [INFO] [stdout] abc: [1, 1] [INFO] [stdout] bcd: [1, 1] [INFO] [stdout] acef: [2, 2, 1] [INFO] [stdout] xyz: [1, 1] [INFO] [stdout] az: [25] [INFO] [stdout] ba: [25] [INFO] [stdout] thread 'tests::test_249' panicked at 'assertion failed: `(left == right)` [INFO] [stdout] left: `[["a", "z"], ["acef"], ["abc", "bcd", "xyz"], ["az", "ba"]]`, [INFO] [stdout] right: `[["abc", "bcd", "acef"], ["az", "ba"], ["acef"], ["a", "z"]]`', src/lib.rs:150:9 [INFO] [stdout] stack backtrace: [INFO] [stdout] 0: 0x557180c4a8f7 - std::backtrace_rs::backtrace::libunwind::trace::hcd6e187547b8deec [INFO] [stdout] at /rustc/25b3db3aa752d9d4633c983c9d4bf5e48f9baff1/library/std/src/../../backtrace/src/backtrace/libunwind.rs:90:5 [INFO] [stdout] 1: 0x557180c4a8f7 - std::backtrace_rs::backtrace::trace_unsynchronized::hde10036eb783fbc7 [INFO] [stdout] at /rustc/25b3db3aa752d9d4633c983c9d4bf5e48f9baff1/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5 [INFO] [stdout] 2: 0x557180c4a8f7 - std::sys_common::backtrace::_print_fmt::h63987b8f86dfc82a [INFO] [stdout] at /rustc/25b3db3aa752d9d4633c983c9d4bf5e48f9baff1/library/std/src/sys_common/backtrace.rs:67:5 [INFO] [stdout] 3: 0x557180c4a8f7 - ::fmt::hc33f3ac4cc9c4196 [INFO] [stdout] at /rustc/25b3db3aa752d9d4633c983c9d4bf5e48f9baff1/library/std/src/sys_common/backtrace.rs:46:22 [INFO] [stdout] 4: 0x557180c6a90c - core::fmt::write::hfdcdeb08fb2b3afa [INFO] [stdout] at /rustc/25b3db3aa752d9d4633c983c9d4bf5e48f9baff1/library/core/src/fmt/mod.rs:1078:17 [INFO] [stdout] 5: 0x557180c46d72 - std::io::Write::write_fmt::h28c53dc51251a293 [INFO] [stdout] at /rustc/25b3db3aa752d9d4633c983c9d4bf5e48f9baff1/library/std/src/io/mod.rs:1519:15 [INFO] [stdout] 6: 0x557180c4cba5 - std::sys_common::backtrace::_print::hf179508b01f66878 [INFO] [stdout] at /rustc/25b3db3aa752d9d4633c983c9d4bf5e48f9baff1/library/std/src/sys_common/backtrace.rs:49:5 [INFO] [stdout] 7: 0x557180c4cba5 - std::sys_common::backtrace::print::ha97d11adb39266a6 [INFO] [stdout] at /rustc/25b3db3aa752d9d4633c983c9d4bf5e48f9baff1/library/std/src/sys_common/backtrace.rs:36:9 [INFO] [stdout] 8: 0x557180c4cba5 - std::panicking::default_hook::{{closure}}::h8da9985a98bd1582 [INFO] [stdout] at /rustc/25b3db3aa752d9d4633c983c9d4bf5e48f9baff1/library/std/src/panicking.rs:208:50 [INFO] [stdout] 9: 0x557180c4c732 - std::panicking::default_hook::hbc0ee792993c2ef2 [INFO] [stdout] at /rustc/25b3db3aa752d9d4633c983c9d4bf5e48f9baff1/library/std/src/panicking.rs:222:9 [INFO] [stdout] 10: 0x557180c4d341 - std::panicking::rust_panic_with_hook::h9fb9cda33a10f084 [INFO] [stdout] at /rustc/25b3db3aa752d9d4633c983c9d4bf5e48f9baff1/library/std/src/panicking.rs:591:17 [INFO] [stdout] 11: 0x557180c4ce87 - std::panicking::begin_panic_handler::{{closure}}::hf3e83396e085962e [INFO] [stdout] at /rustc/25b3db3aa752d9d4633c983c9d4bf5e48f9baff1/library/std/src/panicking.rs:497:13 [INFO] [stdout] 12: 0x557180c4adbc - std::sys_common::backtrace::__rust_end_short_backtrace::hac151ac4c1e3252d [INFO] [stdout] at /rustc/25b3db3aa752d9d4633c983c9d4bf5e48f9baff1/library/std/src/sys_common/backtrace.rs:141:18 [INFO] [stdout] 13: 0x557180c4cde9 - rust_begin_unwind [INFO] [stdout] at /rustc/25b3db3aa752d9d4633c983c9d4bf5e48f9baff1/library/std/src/panicking.rs:493:5 [INFO] [stdout] 14: 0x557180c692c1 - core::panicking::panic_fmt::hf6d8a92b065b8f97 [INFO] [stdout] at /rustc/25b3db3aa752d9d4633c983c9d4bf5e48f9baff1/library/core/src/panicking.rs:92:14 [INFO] [stdout] 15: 0x557180bd8b89 - leetcode::tests::test_249::h5b98d88c81a34cbe [INFO] [stdout] at /opt/rustwide/workdir/src/lib.rs:150:9 [INFO] [stdout] 16: 0x557180bd845a - leetcode::tests::test_249::{{closure}}::h233a2c8df9f9e0f2 [INFO] [stdout] at /opt/rustwide/workdir/src/lib.rs:148:5 [INFO] [stdout] 17: 0x557180bd94fe - core::ops::function::FnOnce::call_once::hda48cd9e90544dcf [INFO] [stdout] at /rustc/25b3db3aa752d9d4633c983c9d4bf5e48f9baff1/library/core/src/ops/function.rs:227:5 [INFO] [stdout] 18: 0x557180c14ff3 - core::ops::function::FnOnce::call_once::ha61d5393ae51ae22 [INFO] [stdout] at /rustc/25b3db3aa752d9d4633c983c9d4bf5e48f9baff1/library/core/src/ops/function.rs:227:5 [INFO] [stdout] 19: 0x557180c14ff3 - test::__rust_begin_short_backtrace::h4a8691b5281c1f3b [INFO] [stdout] at /rustc/25b3db3aa752d9d4633c983c9d4bf5e48f9baff1/library/test/src/lib.rs:516:5 [INFO] [stdout] 20: 0x557180c138e6 - as core::ops::function::FnOnce>::call_once::hd25ba61494055ad3 [INFO] [stdout] at /rustc/25b3db3aa752d9d4633c983c9d4bf5e48f9baff1/library/alloc/src/boxed.rs:1328:9 [INFO] [stdout] 21: 0x557180c138e6 - as core::ops::function::FnOnce<()>>::call_once::h052fde7b846767ba [INFO] [stdout] at /rustc/25b3db3aa752d9d4633c983c9d4bf5e48f9baff1/library/std/src/panic.rs:322:9 [INFO] [stdout] 22: 0x557180c138e6 - std::panicking::try::do_call::h04571a1da6838ba1 [INFO] [stdout] at /rustc/25b3db3aa752d9d4633c983c9d4bf5e48f9baff1/library/std/src/panicking.rs:379:40 [INFO] [stdout] 23: 0x557180c138e6 - std::panicking::try::h758f090614125cbe [INFO] [stdout] at /rustc/25b3db3aa752d9d4633c983c9d4bf5e48f9baff1/library/std/src/panicking.rs:343:19 [INFO] [stdout] 24: 0x557180c138e6 - std::panic::catch_unwind::h0c48513d5a021d3c [INFO] [stdout] at /rustc/25b3db3aa752d9d4633c983c9d4bf5e48f9baff1/library/std/src/panic.rs:396:14 [INFO] [stdout] 25: 0x557180c138e6 - test::run_test_in_process::hee75babaaac3822f [INFO] [stdout] at /rustc/25b3db3aa752d9d4633c983c9d4bf5e48f9baff1/library/test/src/lib.rs:538:18 [INFO] [stdout] 26: 0x557180c138e6 - test::run_test::run_test_inner::{{closure}}::h2920dea75d7f0c1e [INFO] [stdout] at /rustc/25b3db3aa752d9d4633c983c9d4bf5e48f9baff1/library/test/src/lib.rs:449:39 [INFO] [stdout] 27: 0x557180bebbf6 - std::sys_common::backtrace::__rust_begin_short_backtrace::ha23dff608830db13 [INFO] [stdout] at /rustc/25b3db3aa752d9d4633c983c9d4bf5e48f9baff1/library/std/src/sys_common/backtrace.rs:125:18 [INFO] [stdout] 28: 0x557180bf098d - std::thread::Builder::spawn_unchecked::{{closure}}::{{closure}}::hacce322dead3a799 [INFO] [stdout] at /rustc/25b3db3aa752d9d4633c983c9d4bf5e48f9baff1/library/std/src/thread/mod.rs:474:17 [INFO] [stdout] 29: 0x557180bf098d - as core::ops::function::FnOnce<()>>::call_once::h4f0bc9c26ead0a27 [INFO] [stdout] at /rustc/25b3db3aa752d9d4633c983c9d4bf5e48f9baff1/library/std/src/panic.rs:322:9 [INFO] [stdout] 30: 0x557180bf098d - std::panicking::try::do_call::h1b9f282fb0c383b3 [INFO] [stdout] at /rustc/25b3db3aa752d9d4633c983c9d4bf5e48f9baff1/library/std/src/panicking.rs:379:40 [INFO] [stdout] 31: 0x557180bf098d - std::panicking::try::hed1ebed51b133ee4 [INFO] [stdout] at /rustc/25b3db3aa752d9d4633c983c9d4bf5e48f9baff1/library/std/src/panicking.rs:343:19 [INFO] [stdout] 32: 0x557180bf098d - std::panic::catch_unwind::h072a2b19fd39a474 [INFO] [stdout] at /rustc/25b3db3aa752d9d4633c983c9d4bf5e48f9baff1/library/std/src/panic.rs:396:14 [INFO] [stdout] 33: 0x557180bf098d - std::thread::Builder::spawn_unchecked::{{closure}}::hb02c6b2d3ff18bc2 [INFO] [stdout] at /rustc/25b3db3aa752d9d4633c983c9d4bf5e48f9baff1/library/std/src/thread/mod.rs:473:30 [INFO] [stdout] 34: 0x557180bf098d - core::ops::function::FnOnce::call_once{{vtable.shim}}::hb512c5d27b4adb83 [INFO] [stdout] at /rustc/25b3db3aa752d9d4633c983c9d4bf5e48f9baff1/library/core/src/ops/function.rs:227:5 [INFO] [stdout] 35: 0x557180c52e9a - as core::ops::function::FnOnce>::call_once::hdbb9ff71143eaad6 [INFO] [stdout] at /rustc/25b3db3aa752d9d4633c983c9d4bf5e48f9baff1/library/alloc/src/boxed.rs:1328:9 [INFO] [stdout] 36: 0x557180c52e9a - as core::ops::function::FnOnce>::call_once::h9dbde95cefb8368c [INFO] [stdout] at /rustc/25b3db3aa752d9d4633c983c9d4bf5e48f9baff1/library/alloc/src/boxed.rs:1328:9 [INFO] [stdout] 37: 0x557180c52e9a - std::sys::unix::thread::Thread::new::thread_start::hc76032c38affd972 [INFO] [stdout] at /rustc/25b3db3aa752d9d4633c983c9d4bf5e48f9baff1/library/std/src/sys/unix/thread.rs:71:17 [INFO] [stdout] 38: 0x7f03420b7609 - start_thread [INFO] [stdout] 39: 0x7f0341e89293 - clone [INFO] [stdout] 40: 0x0 - [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] failures: [INFO] [stdout] tests::test_249 [INFO] [stdout] [INFO] [stdout] test result: FAILED. 11 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.03s [INFO] [stdout] [INFO] [stderr] error: test failed, to rerun pass '--lib' [INFO] running `Command { std: "docker" "inspect" "d6b857013d15905f8b496789e274da15b18a4f162371d26e0659c1ffeaeb3601", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d6b857013d15905f8b496789e274da15b18a4f162371d26e0659c1ffeaeb3601", kill_on_drop: false }` [INFO] [stdout] d6b857013d15905f8b496789e274da15b18a4f162371d26e0659c1ffeaeb3601