[INFO] cloning repository https://github.com/bigoldcat123/rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/bigoldcat123/rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbigoldcat123%2Frust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbigoldcat123%2Frust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f10703be26e4f37e6b8e33a0ef1f37c79825e568
[INFO] checking bigoldcat123/rust against master#82310651b93a594a3fd69015e1562186a080d94c for pr-145770
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbigoldcat123%2Frust" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/bigoldcat123/rust
[INFO] finished tweaking git repo https://github.com/bigoldcat123/rust
[INFO] tweaked toml for git repo https://github.com/bigoldcat123/rust written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/bigoldcat123/rust on toolchain 82310651b93a594a3fd69015e1562186a080d94c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+82310651b93a594a3fd69015e1562186a080d94c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/bigoldcat123/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" "+82310651b93a594a3fd69015e1562186a080d94c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded wit-bindgen-rt v0.33.0
[INFO] [stderr]   Downloaded unicode-ident v1.0.17
[INFO] [stderr]   Downloaded getrandom v0.3.1
[INFO] [stderr]   Downloaded wasi v0.13.3+wasi-0.2.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+82310651b93a594a3fd69015e1562186a080d94c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+82310651b93a594a3fd69015e1562186a080d94c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f149528acb18968b6da1fcff7b6055c1f446bde6d246317baf3ec77f44ca7d8f
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[INFO] [stderr]    Compiling proc-macro2 v1.0.93
[INFO] [stderr]    Compiling unicode-ident v1.0.17
[INFO] [stderr]    Compiling libc v0.2.171
[INFO] [stderr]     Checking memchr v2.7.4
[INFO] [stderr]    Compiling getrandom v0.3.1
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[INFO] [stderr]    Compiling quote v1.0.38
[INFO] [stderr]    Compiling syn v2.0.98
[INFO] [stderr]     Checking rand_core v0.9.3
[INFO] [stderr]     Checking regex-automata v0.4.9
[INFO] [stderr]    Compiling zerocopy-derive v0.7.35
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[INFO] [stderr]     Checking ppv-lite86 v0.2.20
[INFO] [stderr]     Checking rand_chacha v0.9.0
[INFO] [stderr]     Checking rand v0.9.1
[INFO] [stderr]     Checking solutions v0.1.0 (/opt/rustwide/workdir/solutions)
[INFO] [stdout] warning: use of deprecated function `rand::thread_rng`: Renamed to `rng`
[INFO] [stdout]     --> solutions/src/lib.rs:4372:37
[INFO] [stdout]      |
[INFO] [stdout] 4372 |                 let mut rng = rand::thread_rng();
[INFO] [stdout]      |                                     ^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `rand::thread_rng`: Renamed to `rng`
[INFO] [stdout]     --> solutions/src/lib.rs:4461:37
[INFO] [stdout]      |
[INFO] [stdout] 4461 |                 let mut rng = rand::thread_rng();
[INFO] [stdout]      |                                     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `rand::thread_rng`: Renamed to `rng`
[INFO] [stdout]     --> solutions/src/lib.rs:4934:31
[INFO] [stdout]      |
[INFO] [stdout] 4934 |                 let r = rand::thread_rng();
[INFO] [stdout]      |                               ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `rand::thread_rng`: Renamed to `rng`
[INFO] [stdout]     --> solutions/src/four.rs:2353:37
[INFO] [stdout]      |
[INFO] [stdout] 2353 |                 let mut rng = rand::thread_rng();
[INFO] [stdout]      |                                     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `rand::thread_rng`: Renamed to `rng`
[INFO] [stdout]     --> solutions/src/four.rs:2670:35
[INFO] [stdout]      |
[INFO] [stdout] 2670 |                 let mut r = rand::thread_rng();
[INFO] [stdout]      |                                   ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `rand::thread_rng`: Renamed to `rng`
[INFO] [stdout]    --> solutions/src/five.rs:148:31
[INFO] [stdout]     |
[INFO] [stdout] 148 |                 let r = rand::thread_rng();
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `rand::thread_rng`: Renamed to `rng`
[INFO] [stdout]    --> solutions/src/five.rs:234:33
[INFO] [stdout]     |
[INFO] [stdout] 234 |                 let rng = rand::thread_rng();
[INFO] [stdout]     |                                 ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `rand::thread_rng`: Renamed to `rng`
[INFO] [stdout]     --> solutions/src/lib.rs:4372:37
[INFO] [stdout]      |
[INFO] [stdout] 4372 |                 let mut rng = rand::thread_rng();
[INFO] [stdout]      |                                     ^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `rand::thread_rng`: Renamed to `rng`
[INFO] [stdout]     --> solutions/src/lib.rs:4461:37
[INFO] [stdout]      |
[INFO] [stdout] 4461 |                 let mut rng = rand::thread_rng();
[INFO] [stdout]      |                                     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `rand::thread_rng`: Renamed to `rng`
[INFO] [stdout]     --> solutions/src/lib.rs:4934:31
[INFO] [stdout]      |
[INFO] [stdout] 4934 |                 let r = rand::thread_rng();
[INFO] [stdout]      |                               ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `rand::thread_rng`: Renamed to `rng`
[INFO] [stdout]     --> solutions/src/four.rs:2353:37
[INFO] [stdout]      |
[INFO] [stdout] 2353 |                 let mut rng = rand::thread_rng();
[INFO] [stdout]      |                                     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `rand::thread_rng`: Renamed to `rng`
[INFO] [stdout]     --> solutions/src/four.rs:2670:35
[INFO] [stdout]      |
[INFO] [stdout] 2670 |                 let mut r = rand::thread_rng();
[INFO] [stdout]      |                                   ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `rand::thread_rng`: Renamed to `rng`
[INFO] [stdout]    --> solutions/src/five.rs:148:31
[INFO] [stdout]     |
[INFO] [stdout] 148 |                 let r = rand::thread_rng();
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `rand::thread_rng`: Renamed to `rng`
[INFO] [stdout]    --> solutions/src/five.rs:234:33
[INFO] [stdout]     |
[INFO] [stdout] 234 |                 let rng = rand::thread_rng();
[INFO] [stdout]     |                                 ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `rand::Rng::gen_range`: Renamed to `random_range`
[INFO] [stdout]     --> solutions/src/four.rs:2356:29
[INFO] [stdout]      |
[INFO] [stdout] 2356 |                         rng.gen_range(self.x_center - self.radius..=self.x_center - self.radius);
[INFO] [stdout]      |                             ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `rand::Rng::gen_range`: Renamed to `random_range`
[INFO] [stdout]     --> solutions/src/four.rs:2358:29
[INFO] [stdout]      |
[INFO] [stdout] 2358 |                         rng.gen_range(self.y_center - self.radius..=self.y_center + self.radius);
[INFO] [stdout]      |                             ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `rand::Rng::gen_range`: Renamed to `random_range`
[INFO] [stdout]     --> solutions/src/four.rs:2672:27
[INFO] [stdout]      |
[INFO] [stdout] 2672 |                 let x = r.gen_range(self.rects[0].0.0..=self.rects[0].0.1);
[INFO] [stdout]      |                           ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `rand::Rng::gen_range`: Renamed to `random_range`
[INFO] [stdout]     --> solutions/src/four.rs:2673:27
[INFO] [stdout]      |
[INFO] [stdout] 2673 |                 let y = r.gen_range(self.rects[0].1.0..=self.rects[1].0.1);
[INFO] [stdout]      |                           ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `rand::Rng::gen_range`: Renamed to `random_range`
[INFO] [stdout]    --> solutions/src/five.rs:169:34
[INFO] [stdout]     |
[INFO] [stdout] 169 |                 let idx = self.r.gen_range(0..x.len());
[INFO] [stdout]     |                                  ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `rand::Rng::gen_range`: Renamed to `random_range`
[INFO] [stdout]    --> solutions/src/five.rs:250:36
[INFO] [stdout]     |
[INFO] [stdout] 250 |                 let idx = self.rng.gen_range(0..self.len);
[INFO] [stdout]     |                                    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `rand::Rng::gen_range`: Renamed to `random_range`
[INFO] [stdout]     --> solutions/src/four.rs:2356:29
[INFO] [stdout]      |
[INFO] [stdout] 2356 |                         rng.gen_range(self.x_center - self.radius..=self.x_center - self.radius);
[INFO] [stdout]      |                             ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `rand::Rng::gen_range`: Renamed to `random_range`
[INFO] [stdout]     --> solutions/src/four.rs:2358:29
[INFO] [stdout]      |
[INFO] [stdout] 2358 |                         rng.gen_range(self.y_center - self.radius..=self.y_center + self.radius);
[INFO] [stdout]      |                             ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `rand::Rng::gen_range`: Renamed to `random_range`
[INFO] [stdout]     --> solutions/src/four.rs:2672:27
[INFO] [stdout]      |
[INFO] [stdout] 2672 |                 let x = r.gen_range(self.rects[0].0.0..=self.rects[0].0.1);
[INFO] [stdout]      |                           ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `rand::Rng::gen_range`: Renamed to `random_range`
[INFO] [stdout]     --> solutions/src/four.rs:2673:27
[INFO] [stdout]      |
[INFO] [stdout] 2673 |                 let y = r.gen_range(self.rects[0].1.0..=self.rects[1].0.1);
[INFO] [stdout]      |                           ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `rand::Rng::gen_range`: Renamed to `random_range`
[INFO] [stdout]    --> solutions/src/five.rs:169:34
[INFO] [stdout]     |
[INFO] [stdout] 169 |                 let idx = self.r.gen_range(0..x.len());
[INFO] [stdout]     |                                  ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `rand::Rng::gen_range`: Renamed to `random_range`
[INFO] [stdout]    --> solutions/src/five.rs:250:36
[INFO] [stdout]     |
[INFO] [stdout] 250 |                 let idx = self.rng.gen_range(0..self.len);
[INFO] [stdout]     |                                    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `rand::Rng::gen_range`: Renamed to `random_range`
[INFO] [stdout]     --> solutions/src/lib.rs:4373:31
[INFO] [stdout]      |
[INFO] [stdout] 4373 |                 let idx = rng.gen_range(0..(self.list.len()));
[INFO] [stdout]      |                               ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `rand::Rng::gen_range`: Renamed to `random_range`
[INFO] [stdout]     --> solutions/src/lib.rs:4465:40
[INFO] [stdout]      |
[INFO] [stdout] 4465 |                     let next_idx = rng.gen_range(0..self.list.len() - current_len);
[INFO] [stdout]      |                                        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `rand::Rng::gen_range`: Renamed to `random_range`
[INFO] [stdout]     --> solutions/src/lib.rs:4940:36
[INFO] [stdout]      |
[INFO] [stdout] 4940 |                     let e = self.r.gen_range(0..vec.len());
[INFO] [stdout]      |                                    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `rand::Rng::gen_range`: Renamed to `random_range`
[INFO] [stdout]     --> solutions/src/lib.rs:4373:31
[INFO] [stdout]      |
[INFO] [stdout] 4373 |                 let idx = rng.gen_range(0..(self.list.len()));
[INFO] [stdout]      |                               ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `rand::Rng::gen_range`: Renamed to `random_range`
[INFO] [stdout]     --> solutions/src/lib.rs:4465:40
[INFO] [stdout]      |
[INFO] [stdout] 4465 |                     let next_idx = rng.gen_range(0..self.list.len() - current_len);
[INFO] [stdout]      |                                        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `rand::Rng::gen_range`: Renamed to `random_range`
[INFO] [stdout]     --> solutions/src/lib.rs:4940:36
[INFO] [stdout]      |
[INFO] [stdout] 4940 |                     let e = self.r.gen_range(0..vec.len());
[INFO] [stdout]      |                                    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `guessNumber` should have a snake case name
[INFO] [stdout]     --> solutions/src/lib.rs:4228:15
[INFO] [stdout]      |
[INFO] [stdout] 4228 |     unsafe fn guessNumber(n: i32) -> i32 {
[INFO] [stdout]      |               ^^^^^^^^^^^ help: convert the identifier to snake case: `guess_number`
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `guessNumber` should have a snake case name
[INFO] [stdout]     --> solutions/src/lib.rs:4228:15
[INFO] [stdout]      |
[INFO] [stdout] 4228 |     unsafe fn guessNumber(n: i32) -> i32 {
[INFO] [stdout]      |               ^^^^^^^^^^^ help: convert the identifier to snake case: `guess_number`
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `HashSet`, `Ipv4Addr`, `Ipv6Addr`, `f32::consts::PI`, `future`, `mem`, `rc::Rc`, `str::FromStr`, and `thread`
[INFO] [stdout]  --> solutions/tests/a.rs:2:43
[INFO] [stdout]   |
[INFO] [stdout] 2 | ...ap, HashSet, VecDeque}, f32::consts::PI, fs::File, future, io::Write, mem, net::{Ipv4Addr, Ipv6Addr}, rc::Rc, str::FromStr, thread, ti...
[INFO] [stdout]   |        ^^^^^^^             ^^^^^^^^^^^^^^^            ^^^^^^             ^^^        ^^^^^^^^  ^^^^^^^^   ^^^^^^  ^^^^^^^^^^^^  ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `TreeNode`
[INFO] [stdout]  --> solutions/tests/a.rs:6:8
[INFO] [stdout]   |
[INFO] [stdout] 6 |     A, TreeNode,
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable statement
[INFO] [stdout]    --> solutions/tests/a.rs:201:5
[INFO] [stdout]     |
[INFO] [stdout] 200 |     return;
[INFO] [stdout]     |     ------ any code following this expression is unreachable
[INFO] [stdout] 201 |     let i = Instant::now();
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^ unreachable statement
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `node`
[INFO] [stdout]    --> solutions/tests/a.rs:112:24
[INFO] [stdout]     |
[INFO] [stdout] 112 |         while let Some(node) = start.pop_front() {}
[INFO] [stdout]     |                        ^^^^ help: if this is intentional, prefix it with an underscore: `_node`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> solutions/tests/a.rs:120:9
[INFO] [stdout]     |
[INFO] [stdout] 120 |     let mut next = ((nums[x] + x as i32 + nums.len() as i32) % nums.len() as i32) as usize;
[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]    --> solutions/tests/a.rs:309:30
[INFO] [stdout]     |
[INFO] [stdout] 309 |         fn slide(len: usize, mut map: &mut Vec<i32>, s: &[u8]) -> i32 {
[INFO] [stdout]     |                              ----^^^
[INFO] [stdout]     |                              |
[INFO] [stdout]     |                              help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> solutions/tests/a.rs:396:26
[INFO] [stdout]     |
[INFO] [stdout] 396 |     fn slide(len: usize, mut map: &mut Vec<i32>, s: &[u8]) -> i32 {
[INFO] [stdout]     |                          ----^^^
[INFO] [stdout]     |                          |
[INFO] [stdout]     |                          help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `show_all_t_sort` is never used
[INFO] [stdout]   --> solutions/tests/a.rs:98:8
[INFO] [stdout]    |
[INFO] [stdout] 98 |     fn show_all_t_sort(node_num: usize, map: Vec<(usize, usize)>) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `find_max_average` is never used
[INFO] [stdout]    --> solutions/tests/a.rs:247:12
[INFO] [stdout]     |
[INFO] [stdout] 247 |     pub fn find_max_average(nums: Vec<i32>, k: i32) -> f64 {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `slide` is never used
[INFO] [stdout]    --> solutions/tests/a.rs:396:8
[INFO] [stdout]     |
[INFO] [stdout] 396 |     fn slide(len: usize, mut map: &mut Vec<i32>, s: &[u8]) -> i32 {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 13.85s
[INFO] running `Command { std: "docker" "inspect" "f149528acb18968b6da1fcff7b6055c1f446bde6d246317baf3ec77f44ca7d8f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f149528acb18968b6da1fcff7b6055c1f446bde6d246317baf3ec77f44ca7d8f", kill_on_drop: false }`
[INFO] [stdout] f149528acb18968b6da1fcff7b6055c1f446bde6d246317baf3ec77f44ca7d8f
