[INFO] cloning repository https://github.com/SmallzooDev/coding_interview_rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/SmallzooDev/coding_interview_rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSmallzooDev%2Fcoding_interview_rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSmallzooDev%2Fcoding_interview_rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9cf285b9ec445a26f41007c9fa6d6f48ff042f74
[INFO] checking SmallzooDev/coding_interview_rust against try#04ea1e1f1a12cfa912c228ca278237d92d0bb6df for pr-148477-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSmallzooDev%2Fcoding_interview_rust" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/SmallzooDev/coding_interview_rust
[INFO] finished tweaking git repo https://github.com/SmallzooDev/coding_interview_rust
[INFO] tweaked toml for git repo https://github.com/SmallzooDev/coding_interview_rust written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/SmallzooDev/coding_interview_rust on toolchain 04ea1e1f1a12cfa912c228ca278237d92d0bb6df
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+04ea1e1f1a12cfa912c228ca278237d92d0bb6df" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/SmallzooDev/coding_interview_rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+04ea1e1f1a12cfa912c228ca278237d92d0bb6df" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[INFO] checking SmallzooDev/coding_interview_rust against try#04ea1e1f1a12cfa912c228ca278237d92d0bb6df for pr-148477-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSmallzooDev%2Fcoding_interview_rust" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/SmallzooDev/coding_interview_rust
[INFO] finished tweaking git repo https://github.com/SmallzooDev/coding_interview_rust
[INFO] tweaked toml for git repo https://github.com/SmallzooDev/coding_interview_rust written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/SmallzooDev/coding_interview_rust on toolchain 04ea1e1f1a12cfa912c228ca278237d92d0bb6df
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+04ea1e1f1a12cfa912c228ca278237d92d0bb6df" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/SmallzooDev/coding_interview_rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+04ea1e1f1a12cfa912c228ca278237d92d0bb6df" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+04ea1e1f1a12cfa912c228ca278237d92d0bb6df" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0d24511ee4a97d9f6e5b4775bc95774898dcf3a3a15febe752bab25d688009ca
[INFO] running `Command { std: "docker" "start" "-a" "0d24511ee4a97d9f6e5b4775bc95774898dcf3a3a15febe752bab25d688009ca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0d24511ee4a97d9f6e5b4775bc95774898dcf3a3a15febe752bab25d688009ca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0d24511ee4a97d9f6e5b4775bc95774898dcf3a3a15febe752bab25d688009ca", kill_on_drop: false }`
[INFO] [stdout] 0d24511ee4a97d9f6e5b4775bc95774898dcf3a3a15febe752bab25d688009ca
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+04ea1e1f1a12cfa912c228ca278237d92d0bb6df" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 795f044172fbf45ffffe61c6d6aa2c26bcd4664fa45b31a542f5743aa5e7e165
[INFO] running `Command { std: "docker" "start" "-a" "795f044172fbf45ffffe61c6d6aa2c26bcd4664fa45b31a542f5743aa5e7e165", kill_on_drop: false }`
[INFO] [stderr]     Checking coding_interview_rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/bin/b_2979.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 10 |     for i in 0..3 {
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/bin/b_1032.rs:13:16
[INFO] [stdout]    |
[INFO] [stdout] 13 |             if (result[i] != file[i]) {
[INFO] [stdout]    |                ^                    ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 13 -             if (result[i] != file[i]) {
[INFO] [stdout] 13 +             if result[i] != file[i] {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]  --> src/bin/b_14652.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 7 |     let n: usize = io.get(0usize)?;
[INFO] [stdout]   |         ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]   --> src/bin/b_2178.rs:35:22
[INFO] [stdout]    |
[INFO] [stdout] 35 |             let ny = (current.0 + my);
[INFO] [stdout]    |                      ^              ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 35 -             let ny = (current.0 + my);
[INFO] [stdout] 35 +             let ny = current.0 + my;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]   --> src/bin/b_2178.rs:36:22
[INFO] [stdout]    |
[INFO] [stdout] 36 |             let nx = (current.1 + mx);
[INFO] [stdout]    |                      ^              ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 36 -             let nx = (current.1 + mx);
[INFO] [stdout] 36 +             let nx = current.1 + mx;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/bin/b_2178.rs:38:16
[INFO] [stdout]    |
[INFO] [stdout] 38 |             if (ny >= 0
[INFO] [stdout]    |                ^
[INFO] [stdout] ...
[INFO] [stdout] 43 |                 && grid[ny as usize][nx as usize] != 0)
[INFO] [stdout]    |                                                       ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 38 ~             if ny >= 0
[INFO] [stdout] 39 |                 && nx >= 0
[INFO] [stdout] ...
[INFO] [stdout] 42 |                 && visited[ny as usize][nx as usize] == -1
[INFO] [stdout] 43 ~                 && grid[ny as usize][nx as usize] != 0
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/bin/b_1032.rs:13:16
[INFO] [stdout]    |
[INFO] [stdout] 13 |             if (result[i] != file[i]) {
[INFO] [stdout]    |                ^                    ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 13 -             if (result[i] != file[i]) {
[INFO] [stdout] 13 +             if result[i] != file[i] {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Solution` is never constructed
[INFO] [stdout]   --> src/bin/l_generate_parentheses.rs:12:8
[INFO] [stdout]    |
[INFO] [stdout] 12 | struct Solution;
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated functions `new`, `generate_parenthesis`, and `backtrack` are never used
[INFO] [stdout]   --> src/bin/l_generate_parentheses.rs:15:8
[INFO] [stdout]    |
[INFO] [stdout] 14 | impl Solution {
[INFO] [stdout]    | ------------- associated functions in this implementation
[INFO] [stdout] 15 |     fn new() -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 19 |     pub fn generate_parenthesis(n: i32) -> Vec<String> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 28 |     fn backtrack(result: &mut Vec<String>, current: &mut String, open: usize, close: usize, max: usize) {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/bin/b_1912.rs:16:9
[INFO] [stdout]    |
[INFO] [stdout] 16 |     let mut inputs: Vec<i32> = lines.next().unwrap()
[INFO] [stdout]    |         ----^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `triangle` is never read
[INFO] [stdout]   --> src/bin/b_1660.rs:15:24
[INFO] [stdout]    |
[INFO] [stdout] 15 |     let mut triangle = 1;
[INFO] [stdout]    |                        ^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]   --> src/bin/b_2178.rs:35:22
[INFO] [stdout]    |
[INFO] [stdout] 35 |             let ny = (current.0 + my);
[INFO] [stdout]    |                      ^              ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 35 -             let ny = (current.0 + my);
[INFO] [stdout] 35 +             let ny = current.0 + my;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]   --> src/bin/b_2178.rs:36:22
[INFO] [stdout]    |
[INFO] [stdout] 36 |             let nx = (current.1 + mx);
[INFO] [stdout]    |                      ^              ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 36 -             let nx = (current.1 + mx);
[INFO] [stdout] 36 +             let nx = current.1 + mx;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/bin/b_2178.rs:38:16
[INFO] [stdout]    |
[INFO] [stdout] 38 |             if (ny >= 0
[INFO] [stdout]    |                ^
[INFO] [stdout] ...
[INFO] [stdout] 43 |                 && grid[ny as usize][nx as usize] != 0)
[INFO] [stdout]    |                                                       ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 38 ~             if ny >= 0
[INFO] [stdout] 39 |                 && nx >= 0
[INFO] [stdout] ...
[INFO] [stdout] 42 |                 && visited[ny as usize][nx as usize] == -1
[INFO] [stdout] 43 ~                 && grid[ny as usize][nx as usize] != 0
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/bin/b_9095.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 |     for i in 0..n {
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `triangle` is never read
[INFO] [stdout]   --> src/bin/b_1660.rs:15:24
[INFO] [stdout]    |
[INFO] [stdout] 15 |     let mut triangle = 1;
[INFO] [stdout]    |                        ^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/bin/b_2468.rs:19:9
[INFO] [stdout]    |
[INFO] [stdout] 19 |     for i in 0..n {
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Solution` is never constructed
[INFO] [stdout]   --> src/bin/l_generate_parentheses.rs:12:8
[INFO] [stdout]    |
[INFO] [stdout] 12 | struct Solution;
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated functions `new`, `generate_parenthesis`, and `backtrack` are never used
[INFO] [stdout]   --> src/bin/l_generate_parentheses.rs:15:8
[INFO] [stdout]    |
[INFO] [stdout] 14 | impl Solution {
[INFO] [stdout]    | ------------- associated functions in this implementation
[INFO] [stdout] 15 |     fn new() -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 19 |     pub fn generate_parenthesis(n: i32) -> Vec<String> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 28 |     fn backtrack(result: &mut Vec<String>, current: &mut String, open: usize, close: usize, max: usize) {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/bin/b_11660.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 10 |     for i in 0..n {
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/bin/b_11660.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 10 |     for i in 0..n {
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/bin/b_1912.rs:16:9
[INFO] [stdout]    |
[INFO] [stdout] 16 |     let mut inputs: Vec<i32> = lines.next().unwrap()
[INFO] [stdout]    |         ----^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/bin/b_9095.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 |     for i in 0..n {
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/bin/b_2468.rs:19:9
[INFO] [stdout]    |
[INFO] [stdout] 19 |     for i in 0..n {
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/bin/b_11659.rs:16:9
[INFO] [stdout]    |
[INFO] [stdout] 16 |     for i in 0..m {
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/bin/b_2979.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 10 |     for i in 0..3 {
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/bin/b_2110.rs:23:9
[INFO] [stdout]    |
[INFO] [stdout] 23 |     for i in 0..n {
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/bin/b_11659.rs:16:9
[INFO] [stdout]    |
[INFO] [stdout] 16 |     for i in 0..m {
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]  --> src/bin/b_14652.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 7 |     let n: usize = io.get(0usize)?;
[INFO] [stdout]   |         ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]   --> src/bin/b_2839.rs:15:47
[INFO] [stdout]    |
[INFO] [stdout] 15 |     let mut dp: Vec<i32> = vec![i32::MAX - 1; (n_usize + 1)];
[INFO] [stdout]    |                                               ^           ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 15 -     let mut dp: Vec<i32> = vec![i32::MAX - 1; (n_usize + 1)];
[INFO] [stdout] 15 +     let mut dp: Vec<i32> = vec![i32::MAX - 1; n_usize + 1];
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/bin/b_1931.rs:16:9
[INFO] [stdout]    |
[INFO] [stdout] 16 |     for i in 0..n {
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `any::Any`
[INFO] [stdout]    --> src/bin/b_28278.rs:172:11
[INFO] [stdout]     |
[INFO] [stdout] 172 | use std::{any::Any, collections::VecDeque};
[INFO] [stdout]     |           ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]   --> src/bin/b_2839.rs:15:47
[INFO] [stdout]    |
[INFO] [stdout] 15 |     let mut dp: Vec<i32> = vec![i32::MAX - 1; (n_usize + 1)];
[INFO] [stdout]    |                                               ^           ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 15 -     let mut dp: Vec<i32> = vec![i32::MAX - 1; (n_usize + 1)];
[INFO] [stdout] 15 +     let mut dp: Vec<i32> = vec![i32::MAX - 1; n_usize + 1];
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/bin/b_1931.rs:16:9
[INFO] [stdout]    |
[INFO] [stdout] 16 |     for i in 0..n {
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `any::Any`
[INFO] [stdout]    --> src/bin/b_28278.rs:172:11
[INFO] [stdout]     |
[INFO] [stdout] 172 | use std::{any::Any, collections::VecDeque};
[INFO] [stdout]     |           ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/bin/b_2110.rs:23:9
[INFO] [stdout]    |
[INFO] [stdout] 23 |     for i in 0..n {
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.46s
[INFO] running `Command { std: "docker" "inspect" "795f044172fbf45ffffe61c6d6aa2c26bcd4664fa45b31a542f5743aa5e7e165", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "795f044172fbf45ffffe61c6d6aa2c26bcd4664fa45b31a542f5743aa5e7e165", kill_on_drop: false }`
[INFO] [stdout] 795f044172fbf45ffffe61c6d6aa2c26bcd4664fa45b31a542f5743aa5e7e165
