[INFO] cloning repository https://github.com/LeeReindeer/LeetCode-Rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/LeeReindeer/LeetCode-Rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLeeReindeer%2FLeetCode-Rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLeeReindeer%2FLeetCode-Rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 877946aa6b7a35f17414fa0580543f730c281f66
[INFO] checking LeeReindeer/LeetCode-Rust against master#cfbc6d4cf1acbac5c025acf8ed68929caa551df3 for pr-75494-beta
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLeeReindeer%2FLeetCode-Rust" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/LeeReindeer/LeetCode-Rust on toolchain cfbc6d4cf1acbac5c025acf8ed68929caa551df3
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[INFO] started tweaking git repo https://github.com/LeeReindeer/LeetCode-Rust
[INFO] finished tweaking git repo https://github.com/LeeReindeer/LeetCode-Rust
[INFO] tweaked toml for git repo https://github.com/LeeReindeer/LeetCode-Rust written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/LeeReindeer/LeetCode-Rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cfbc6d4cf1acbac5c025acf8ed68929caa551df3" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "start" "-a" "0b319b10e2b42745f93a9712404c552fc3532db490d029f5549339c0aacd6df8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0b319b10e2b42745f93a9712404c552fc3532db490d029f5549339c0aacd6df8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0b319b10e2b42745f93a9712404c552fc3532db490d029f5549339c0aacd6df8", kill_on_drop: false }`
[INFO] [stdout] 0b319b10e2b42745f93a9712404c552fc3532db490d029f5549339c0aacd6df8
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[INFO] [stdout] warning: unnecessary parentheses around `for` iterator expression
[INFO] [stdout]   --> src/solution/s0309_best_time_to_buy_and_sell_stock_with_cooldown.rs:18:18
[INFO] [stdout]    |
[INFO] [stdout] 18 |         for i in (0..prices.len()) {
[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 `if` condition
[INFO] [stdout]   --> src/solution/s0714_best_time_to_buy_and_sell_stock_with_transaction_fee.rs:15:12
[INFO] [stdout]    |
[INFO] [stdout] 15 |         if (prices.is_empty()) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `for` iterator expression
[INFO] [stdout]   --> src/solution/s0714_best_time_to_buy_and_sell_stock_with_transaction_fee.rs:22:18
[INFO] [stdout]    |
[INFO] [stdout] 22 |         for i in (1..prices.len()) {
[INFO] [stdout]    |                  ^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `for` iterator expression
[INFO] [stdout]   --> src/solution/s0309_best_time_to_buy_and_sell_stock_with_cooldown.rs:18:18
[INFO] [stdout]    |
[INFO] [stdout] 18 |         for i in (0..prices.len()) {
[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 `if` condition
[INFO] [stdout]   --> src/solution/s0714_best_time_to_buy_and_sell_stock_with_transaction_fee.rs:15:12
[INFO] [stdout]    |
[INFO] [stdout] 15 |         if (prices.is_empty()) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `for` iterator expression
[INFO] [stdout]   --> src/solution/s0714_best_time_to_buy_and_sell_stock_with_transaction_fee.rs:22:18
[INFO] [stdout]    |
[INFO] [stdout] 22 |         for i in (1..prices.len()) {
[INFO] [stdout]    |                  ^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `localMax` should have a snake case name
[INFO] [stdout]   --> src/solution/s0188_best_time_to_buy_and_sell_stock_iv.rs:40:21
[INFO] [stdout]    |
[INFO] [stdout] 40 |             let mut localMax = dp[i - 1][0] - prices[0];
[INFO] [stdout]    |                     ^^^^^^^^ help: convert the identifier to snake case: `local_max`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `localMax` should have a snake case name
[INFO] [stdout]   --> src/solution/s0123_best_time_to_buy_and_sell_stock_iii.rs:26:21
[INFO] [stdout]    |
[INFO] [stdout] 26 |             let mut localMax = dp[i - 1][0] - prices[0];
[INFO] [stdout]    |                     ^^^^^^^^ help: convert the identifier to snake case: `local_max`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Solution`
[INFO] [stdout]  --> src/solution/s0121_best_time_to_buy_and_sell_stock.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct Solution {}
[INFO] [stdout]   |            ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `max_profit`
[INFO] [stdout]   --> src/solution/s0121_best_time_to_buy_and_sell_stock.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 12 |     pub fn max_profit(prices: Vec<i32>) -> i32 {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Solution`
[INFO] [stdout]  --> src/solution/s0309_best_time_to_buy_and_sell_stock_with_cooldown.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct Solution {}
[INFO] [stdout]   |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `max_profit`
[INFO] [stdout]   --> src/solution/s0309_best_time_to_buy_and_sell_stock_with_cooldown.rs:14:12
[INFO] [stdout]    |
[INFO] [stdout] 14 |     pub fn max_profit(prices: Vec<i32>) -> i32 {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `max_profit_1`
[INFO] [stdout]   --> src/solution/s0309_best_time_to_buy_and_sell_stock_with_cooldown.rs:27:12
[INFO] [stdout]    |
[INFO] [stdout] 27 |     pub fn max_profit_1(prices: Vec<i32>) -> i32 {
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Solution`
[INFO] [stdout]  --> src/solution/s0714_best_time_to_buy_and_sell_stock_with_transaction_fee.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct Solution {}
[INFO] [stdout]   |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `max_profit`
[INFO] [stdout]   --> src/solution/s0714_best_time_to_buy_and_sell_stock_with_transaction_fee.rs:14:12
[INFO] [stdout]    |
[INFO] [stdout] 14 |     pub fn max_profit(prices: Vec<i32>, fee: i32) -> i32 {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Solution`
[INFO] [stdout]  --> src/solution/s0188_best_time_to_buy_and_sell_stock_iv.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct Solution {}
[INFO] [stdout]   |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `max_profit`
[INFO] [stdout]   --> src/solution/s0188_best_time_to_buy_and_sell_stock_iv.rs:20:12
[INFO] [stdout]    |
[INFO] [stdout] 20 |     pub fn max_profit(k: i32, prices: Vec<i32>) -> i32 {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Solution`
[INFO] [stdout]  --> src/solution/s0123_best_time_to_buy_and_sell_stock_iii.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct Solution {}
[INFO] [stdout]   |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `max_profit`
[INFO] [stdout]   --> src/solution/s0123_best_time_to_buy_and_sell_stock_iii.rs:17:12
[INFO] [stdout]    |
[INFO] [stdout] 17 |     pub fn max_profit(prices: Vec<i32>) -> i32 {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Solution`
[INFO] [stdout]  --> src/solution/s0455_assign_cookies.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct Solution {}
[INFO] [stdout]   |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `find_content_children`
[INFO] [stdout]   --> src/solution/s0455_assign_cookies.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 12 |     pub fn find_content_children(g: Vec<i32>, s: Vec<i32>) -> i32 {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Solution`
[INFO] [stdout]  --> src/solution/s0435_non_overlapping_intervals.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct Solution {}
[INFO] [stdout]   |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `erase_overlap_intervals`
[INFO] [stdout]   --> src/solution/s0435_non_overlapping_intervals.rs:16:12
[INFO] [stdout]    |
[INFO] [stdout] 16 |     pub fn erase_overlap_intervals(intervals: Vec<Vec<i32>>) -> i32 {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Solution`
[INFO] [stdout]  --> src/solution/s0392_is_subsequence.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct Solution {}
[INFO] [stdout]   |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_subsequence`
[INFO] [stdout]   --> src/solution/s0392_is_subsequence.rs:13:12
[INFO] [stdout]    |
[INFO] [stdout] 13 |     pub fn is_subsequence(s: String, t: String) -> bool {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `localMax` should have a snake case name
[INFO] [stdout]   --> src/solution/s0188_best_time_to_buy_and_sell_stock_iv.rs:40:21
[INFO] [stdout]    |
[INFO] [stdout] 40 |             let mut localMax = dp[i - 1][0] - prices[0];
[INFO] [stdout]    |                     ^^^^^^^^ help: convert the identifier to snake case: `local_max`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `localMax` should have a snake case name
[INFO] [stdout]   --> src/solution/s0123_best_time_to_buy_and_sell_stock_iii.rs:26:21
[INFO] [stdout]    |
[INFO] [stdout] 26 |             let mut localMax = dp[i - 1][0] - prices[0];
[INFO] [stdout]    |                     ^^^^^^^^ help: convert the identifier to snake case: `local_max`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 22 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::env`
[INFO] [stdout]   --> src/main.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use std::env;
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `fs` is imported redundantly
[INFO] [stdout]    --> src/main.rs:152:9
[INFO] [stdout]     |
[INFO] [stdout] 11  | use std::fs;
[INFO] [stdout]     |     ------- the item `fs` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 152 |     use std::fs;
[INFO] [stdout]     |         ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fs`
[INFO] [stdout]    --> src/main.rs:152:9
[INFO] [stdout]     |
[INFO] [stdout] 152 |     use std::fs;
[INFO] [stdout]     |         ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::env`
[INFO] [stdout]   --> src/main.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use std::env;
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `fs` is imported redundantly
[INFO] [stdout]    --> src/main.rs:152:9
[INFO] [stdout]     |
[INFO] [stdout] 11  | use std::fs;
[INFO] [stdout]     |     ------- the item `fs` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 152 |     use std::fs;
[INFO] [stdout]     |         ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fs`
[INFO] [stdout]    --> src/main.rs:152:9
[INFO] [stdout]     |
[INFO] [stdout] 152 |     use std::fs;
[INFO] [stdout]     |         ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `futures::stream::StreamExt`
[INFO] [stdout]   --> src/main.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 20 | use futures::stream::StreamExt;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `is_random` is assigned to, but never used
[INFO] [stdout]   --> src/main.rs:35:13
[INFO] [stdout]    |
[INFO] [stdout] 35 |         let mut is_random = false;
[INFO] [stdout]    |             ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout]    = note: consider using `_is_random` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `is_solving` is assigned to, but never used
[INFO] [stdout]   --> src/main.rs:36:13
[INFO] [stdout]    |
[INFO] [stdout] 36 |         let mut is_solving = false;
[INFO] [stdout]    |             ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: consider using `_is_solving` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `id` is never read
[INFO] [stdout]   --> src/main.rs:37:13
[INFO] [stdout]    |
[INFO] [stdout] 37 |         let mut id: u32 = 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 `is_random` is never read
[INFO] [stdout]   --> src/main.rs:51:13
[INFO] [stdout]    |
[INFO] [stdout] 51 |             is_random = true;
[INFO] [stdout]    |             ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `is_solving` is never read
[INFO] [stdout]   --> src/main.rs:56:13
[INFO] [stdout]    |
[INFO] [stdout] 56 |             is_solving = true;
[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/main.rs:72:17
[INFO] [stdout]    |
[INFO] [stdout] 72 |             let mut mod_file_addon = Arc::new(Mutex::new(vec![]));
[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: function is never used: `build_desc`
[INFO] [stdout]    --> src/main.rs:244:4
[INFO] [stdout]     |
[INFO] [stdout] 244 | fn build_desc(content: &str) -> String {
[INFO] [stdout]     |    ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/main.rs:116:13
[INFO] [stdout]     |
[INFO] [stdout] 116 |             writeln!(lib_file, "{}", mod_file_addon.lock().unwrap().join("\n"));
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/main.rs:311:5
[INFO] [stdout]     |
[INFO] [stdout] 311 |     fs::write(mod_file, lines.join("\n"));
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/main.rs:317:5
[INFO] [stdout]     |
[INFO] [stdout] 317 |     writeln!(lib_file, "mod {};", solution_name);
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/main.rs:361:9
[INFO] [stdout]     |
[INFO] [stdout] 361 |         writeln!(lib_file, "mod {};", file_name);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `futures::stream::StreamExt`
[INFO] [stdout]   --> src/main.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 20 | use futures::stream::StreamExt;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `is_random` is assigned to, but never used
[INFO] [stdout]   --> src/main.rs:35:13
[INFO] [stdout]    |
[INFO] [stdout] 35 |         let mut is_random = false;
[INFO] [stdout]    |             ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout]    = note: consider using `_is_random` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `is_solving` is assigned to, but never used
[INFO] [stdout]   --> src/main.rs:36:13
[INFO] [stdout]    |
[INFO] [stdout] 36 |         let mut is_solving = false;
[INFO] [stdout]    |             ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: consider using `_is_solving` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `id` is never read
[INFO] [stdout]   --> src/main.rs:37:13
[INFO] [stdout]    |
[INFO] [stdout] 37 |         let mut id: u32 = 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 `is_random` is never read
[INFO] [stdout]   --> src/main.rs:51:13
[INFO] [stdout]    |
[INFO] [stdout] 51 |             is_random = true;
[INFO] [stdout]    |             ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `is_solving` is never read
[INFO] [stdout]   --> src/main.rs:56:13
[INFO] [stdout]    |
[INFO] [stdout] 56 |             is_solving = true;
[INFO] [stdout]    |             ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 15 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:72:17
[INFO] [stdout]    |
[INFO] [stdout] 72 |             let mut mod_file_addon = Arc::new(Mutex::new(vec![]));
[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: function is never used: `build_desc`
[INFO] [stdout]    --> src/main.rs:244:4
[INFO] [stdout]     |
[INFO] [stdout] 244 | fn build_desc(content: &str) -> String {
[INFO] [stdout]     |    ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/main.rs:116:13
[INFO] [stdout]     |
[INFO] [stdout] 116 |             writeln!(lib_file, "{}", mod_file_addon.lock().unwrap().join("\n"));
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/main.rs:311:5
[INFO] [stdout]     |
[INFO] [stdout] 311 |     fs::write(mod_file, lines.join("\n"));
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/main.rs:317:5
[INFO] [stdout]     |
[INFO] [stdout] 317 |     writeln!(lib_file, "mod {};", solution_name);
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/main.rs:361:9
[INFO] [stdout]     |
[INFO] [stdout] 361 |         writeln!(lib_file, "mod {};", file_name);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 15 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2m 04s
[INFO] running `Command { std: "docker" "inspect" "b9979b288caf5d4dc7276441231bc77f47eb8e64c9fcb1d719cda6a72c1d3838", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b9979b288caf5d4dc7276441231bc77f47eb8e64c9fcb1d719cda6a72c1d3838", kill_on_drop: false }`
[INFO] [stdout] b9979b288caf5d4dc7276441231bc77f47eb8e64c9fcb1d719cda6a72c1d3838
