[INFO] cloning repository https://github.com/Hue1337/AiZO-Projekt-Badanie-efektywnosci-algorytmow-sortowania
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Hue1337/AiZO-Projekt-Badanie-efektywnosci-algorytmow-sortowania" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FHue1337%2FAiZO-Projekt-Badanie-efektywnosci-algorytmow-sortowania", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FHue1337%2FAiZO-Projekt-Badanie-efektywnosci-algorytmow-sortowania'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] eacee083ac3b0b33fd1476f37c0b53da19b03a3c
[INFO] building Hue1337/AiZO-Projekt-Badanie-efektywnosci-algorytmow-sortowania against master#11663cd3bfefef7d34e8f0892c250bf698049392+rustflags=-Dtail-expr-drop-order for pr-134523
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FHue1337%2FAiZO-Projekt-Badanie-efektywnosci-algorytmow-sortowania" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Hue1337/AiZO-Projekt-Badanie-efektywnosci-algorytmow-sortowania on toolchain 11663cd3bfefef7d34e8f0892c250bf698049392
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Hue1337/AiZO-Projekt-Badanie-efektywnosci-algorytmow-sortowania
[INFO] finished tweaking git repo https://github.com/Hue1337/AiZO-Projekt-Badanie-efektywnosci-algorytmow-sortowania
[INFO] tweaked toml for git repo https://github.com/Hue1337/AiZO-Projekt-Badanie-efektywnosci-algorytmow-sortowania written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/Hue1337/AiZO-Projekt-Badanie-efektywnosci-algorytmow-sortowania 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" "+11663cd3bfefef7d34e8f0892c250bf698049392" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5b94ce2e290c49611b6ea30be153b9cbb41e7f4034eeaebe3c61a9f801629ed8
[INFO] running `Command { std: "docker" "start" "-a" "5b94ce2e290c49611b6ea30be153b9cbb41e7f4034eeaebe3c61a9f801629ed8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5b94ce2e290c49611b6ea30be153b9cbb41e7f4034eeaebe3c61a9f801629ed8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5b94ce2e290c49611b6ea30be153b9cbb41e7f4034eeaebe3c61a9f801629ed8", kill_on_drop: false }`
[INFO] [stdout] 5b94ce2e290c49611b6ea30be153b9cbb41e7f4034eeaebe3c61a9f801629ed8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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 -Dtail-expr-drop-order" "-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 03160fe7ad2e580f1717bd85b593fa170c11adcc6d28a51e7eed3c0125575d1e
[INFO] running `Command { std: "docker" "start" "-a" "03160fe7ad2e580f1717bd85b593fa170c11adcc6d28a51e7eed3c0125575d1e", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]    Compiling getrandom v0.2.14
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling Projekt_1_alg_sortowania v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `data_type`
[INFO] [stdout]   --> src/user.rs:45:17
[INFO] [stdout]    |
[INFO] [stdout] 45 |         let mut data_type: u32;
[INFO] [stdout]    |                 ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_data_type`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `user_action`
[INFO] [stdout]   --> src/user.rs:46:17
[INFO] [stdout]    |
[INFO] [stdout] 46 |         let mut user_action: u32;
[INFO] [stdout]    |                 ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_user_action`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/user.rs:192:33
[INFO] [stdout]     |
[INFO] [stdout] 192 | ...                   let mut elapsed_time: std::time::Duration;
[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/user.rs:199:33
[INFO] [stdout]     |
[INFO] [stdout] 199 | ...                   let mut elapsed_time: std::time::Duration;
[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]    --> src/user.rs:206:33
[INFO] [stdout]     |
[INFO] [stdout] 206 | ...                   let mut elapsed_time: std::time::Duration;
[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]    --> src/user.rs:289:25
[INFO] [stdout]     |
[INFO] [stdout] 289 |                     let mut tmp_choice = algorithms::read_user_choice();
[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]   --> src/menu.rs:40:9
[INFO] [stdout]    |
[INFO] [stdout] 40 |     let mut user_choice: u32;
[INFO] [stdout]    |         ----^^^^^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/generator.rs:45:13
[INFO] [stdout]    |
[INFO] [stdout] 45 |         for i in 0 .. self.arr_size {
[INFO] [stdout]    |             ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/generator.rs:53:13
[INFO] [stdout]    |
[INFO] [stdout] 53 |         for i in 0 .. self.arr_size {
[INFO] [stdout]    |             ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/generator.rs:61:13
[INFO] [stdout]    |
[INFO] [stdout] 61 |         for i in 0 .. self.arr_size {
[INFO] [stdout]    |             ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/algorithms.rs:13:9
[INFO] [stdout]    |
[INFO] [stdout] 13 |     let mut choice = read_user_choice();
[INFO] [stdout]    |         ----^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `data_type`
[INFO] [stdout]   --> src/algorithms.rs:17:41
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub fn match_algorithm_i32(choice: u32, data_type: u32, data: Vec<i32>) -> (Vec<i32>, std::time::Duration) {
[INFO] [stdout]    |                                         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_data_type`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/algorithms.rs:22:17
[INFO] [stdout]    |
[INFO] [stdout] 22 |             let mut tmp_vec = insertion_sort_i32(data);
[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]   --> src/algorithms.rs:30:17
[INFO] [stdout]    |
[INFO] [stdout] 30 |             let mut tmp_vec = heapsort_i32(data);
[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]   --> src/algorithms.rs:38:17
[INFO] [stdout]    |
[INFO] [stdout] 38 |             let mut tmp_vec = shell_sort_i32(data);
[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]   --> src/algorithms.rs:46:17
[INFO] [stdout]    |
[INFO] [stdout] 46 |             let mut tmp_vec = quicksort_i32(data);
[INFO] [stdout]    |                 ----^^^^^^^
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `data_type`
[INFO] [stdout]   --> src/algorithms.rs:58:41
[INFO] [stdout]    |
[INFO] [stdout] 58 | pub fn match_algorithm_f32(choice: u32, data_type: u32, data: Vec<f32>) -> (Vec<f32>, std::time::Duration) {
[INFO] [stdout]    |                                         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_data_type`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/algorithms.rs:63:17
[INFO] [stdout]    |
[INFO] [stdout] 63 |             let mut tmp_vec = insertion_sort_f32(data);
[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]   --> src/algorithms.rs:71:17
[INFO] [stdout]    |
[INFO] [stdout] 71 |             let mut tmp_vec = heapsort_f32(data);
[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]   --> src/algorithms.rs:79:17
[INFO] [stdout]    |
[INFO] [stdout] 79 |             let mut tmp_vec = shell_sort_f32(data);
[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]   --> src/algorithms.rs:87:17
[INFO] [stdout]    |
[INFO] [stdout] 87 |             let mut tmp_vec = quicksort_f32(data);
[INFO] [stdout]    |                 ----^^^^^^^
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `data_type`
[INFO] [stdout]   --> src/algorithms.rs:99:41
[INFO] [stdout]    |
[INFO] [stdout] 99 | pub fn match_algorithm_f64(choice: u32, data_type: u32, data: Vec<f64>) -> (Vec<f64>, std::time::Duration) {
[INFO] [stdout]    |                                         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_data_type`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/algorithms.rs:104:17
[INFO] [stdout]     |
[INFO] [stdout] 104 |             let mut tmp_vec = insertion_sort_f64(data);
[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]    --> src/algorithms.rs:112:17
[INFO] [stdout]     |
[INFO] [stdout] 112 |             let mut tmp_vec = heapsort_f64(data);
[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]    --> src/algorithms.rs:120:17
[INFO] [stdout]     |
[INFO] [stdout] 120 |             let mut tmp_vec = shell_sort_f64(data);
[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]    --> src/algorithms.rs:128:17
[INFO] [stdout]     |
[INFO] [stdout] 128 |             let mut tmp_vec = quicksort_f64(data);
[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]    --> src/algorithms.rs:496:9
[INFO] [stdout]     |
[INFO] [stdout] 496 |     let mut chunk_size = (len as f64 * percent).ceil() as usize;
[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]    --> src/algorithms.rs:520:9
[INFO] [stdout]     |
[INFO] [stdout] 520 |     let mut chunk_size = (len as f64 * percent).ceil() as usize;
[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]    --> src/algorithms.rs:544:9
[INFO] [stdout]     |
[INFO] [stdout] 544 |     let mut chunk_size = (len as f64 * percent).ceil() as usize;
[INFO] [stdout]     |         ----^^^^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `str_tmp` is never read
[INFO] [stdout]   --> src/data_handler.rs:79:13
[INFO] [stdout]    |
[INFO] [stdout] 79 |     let mut str_tmp: String = String::new();
[INFO] [stdout]    |             ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `str_tmp` is never read
[INFO] [stdout]    --> src/data_handler.rs:104:13
[INFO] [stdout]     |
[INFO] [stdout] 104 |     let mut str_tmp: String = String::new();
[INFO] [stdout]     |             ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `str_tmp` is never read
[INFO] [stdout]    --> src/data_handler.rs:129:13
[INFO] [stdout]     |
[INFO] [stdout] 129 |     let mut str_tmp: String = String::new();
[INFO] [stdout]     |             ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `tmp_file`
[INFO] [stdout]    --> src/data_handler.rs:149:9
[INFO] [stdout]     |
[INFO] [stdout] 149 |     let tmp_file = match tmp_file {
[INFO] [stdout]     |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_tmp_file`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `other_error`
[INFO] [stdout]    --> src/data_handler.rs:156:13
[INFO] [stdout]     |
[INFO] [stdout] 156 |             other_error => {
[INFO] [stdout]     |             ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_other_error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `err`
[INFO] [stdout]    --> src/data_handler.rs:176:13
[INFO] [stdout]     |
[INFO] [stdout] 176 |         Err(err) => println!("Failed to wipe the file: {}", filename),
[INFO] [stdout]     |             ^^^ help: if this is intentional, prefix it with an underscore: `_err`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/user.rs:95:29
[INFO] [stdout]    |
[INFO] [stdout] 95 | ...                   data_handler::write_data_i32(self.generator.get_arr_i32(), self.filename.clone());
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 95 |                             let _ = data_handler::write_data_i32(self.generator.get_arr_i32(), self.filename.clone());
[INFO] [stdout]    |                             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/user.rs:99:29
[INFO] [stdout]    |
[INFO] [stdout] 99 | ...                   data_handler::write_data_f32(self.generator.get_arr_f32(), self.filename.clone());
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 99 |                             let _ = data_handler::write_data_f32(self.generator.get_arr_f32(), self.filename.clone());
[INFO] [stdout]    |                             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/user.rs:103:29
[INFO] [stdout]     |
[INFO] [stdout] 103 | ...                   data_handler::write_data_f64(self.generator.get_arr_f64(), self.filename.clone());
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 103 |                             let _ = data_handler::write_data_f64(self.generator.get_arr_f64(), self.filename.clone());
[INFO] [stdout]     |                             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/user.rs:232:29
[INFO] [stdout]     |
[INFO] [stdout] 232 | ...                   data_handler::write_data_i32(self.generator.get_arr_i32(), self.filename.clone());
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 232 |                             let _ = data_handler::write_data_i32(self.generator.get_arr_i32(), self.filename.clone());
[INFO] [stdout]     |                             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/user.rs:236:29
[INFO] [stdout]     |
[INFO] [stdout] 236 | ...                   data_handler::write_data_f32(self.generator.get_arr_f32(), self.filename.clone());
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 236 |                             let _ = data_handler::write_data_f32(self.generator.get_arr_f32(), self.filename.clone());
[INFO] [stdout]     |                             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/user.rs:240:29
[INFO] [stdout]     |
[INFO] [stdout] 240 | ...                   data_handler::write_data_f64(self.generator.get_arr_f64(), self.filename.clone());
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 240 |                             let _ = data_handler::write_data_f64(self.generator.get_arr_f64(), self.filename.clone());
[INFO] [stdout]     |                             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/data_handler.rs:82:5
[INFO] [stdout]    |
[INFO] [stdout] 82 |     writeln!(file_tmp, "{}", data.len().to_string());
[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 the macro `writeln` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/data_handler.rs:107:5
[INFO] [stdout]     |
[INFO] [stdout] 107 |     writeln!(file_tmp, "{}", data.len().to_string());
[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 the macro `writeln` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/data_handler.rs:132:5
[INFO] [stdout]     |
[INFO] [stdout] 132 |     writeln!(file_tmp, "{}", data.len().to_string());
[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 the macro `writeln` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/data_handler.rs:165:9
[INFO] [stdout]     |
[INFO] [stdout] 165 |         fs::create_dir("./config/");
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 165 |         let _ = fs::create_dir("./config/");
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/data_handler.rs:169:9
[INFO] [stdout]     |
[INFO] [stdout] 169 |         fs::create_dir("./data/");
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 169 |         let _ = fs::create_dir("./data/");
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.49s
[INFO] running `Command { std: "docker" "inspect" "03160fe7ad2e580f1717bd85b593fa170c11adcc6d28a51e7eed3c0125575d1e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "03160fe7ad2e580f1717bd85b593fa170c11adcc6d28a51e7eed3c0125575d1e", kill_on_drop: false }`
[INFO] [stdout] 03160fe7ad2e580f1717bd85b593fa170c11adcc6d28a51e7eed3c0125575d1e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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 -Dtail-expr-drop-order" "-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a6e2e30326af27d7aaad933338062323c6c2ee8a84f8df708d1d7dc080aae3ba
[INFO] running `Command { std: "docker" "start" "-a" "a6e2e30326af27d7aaad933338062323c6c2ee8a84f8df708d1d7dc080aae3ba", kill_on_drop: false }`
[INFO] [stderr]    Compiling Projekt_1_alg_sortowania v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `data_type`
[INFO] [stdout]   --> src/user.rs:45:17
[INFO] [stdout]    |
[INFO] [stdout] 45 |         let mut data_type: u32;
[INFO] [stdout]    |                 ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_data_type`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `user_action`
[INFO] [stdout]   --> src/user.rs:46:17
[INFO] [stdout]    |
[INFO] [stdout] 46 |         let mut user_action: u32;
[INFO] [stdout]    |                 ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_user_action`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/user.rs:192:33
[INFO] [stdout]     |
[INFO] [stdout] 192 | ...                   let mut elapsed_time: std::time::Duration;
[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/user.rs:199:33
[INFO] [stdout]     |
[INFO] [stdout] 199 | ...                   let mut elapsed_time: std::time::Duration;
[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]    --> src/user.rs:206:33
[INFO] [stdout]     |
[INFO] [stdout] 206 | ...                   let mut elapsed_time: std::time::Duration;
[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]    --> src/user.rs:289:25
[INFO] [stdout]     |
[INFO] [stdout] 289 |                     let mut tmp_choice = algorithms::read_user_choice();
[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]   --> src/menu.rs:40:9
[INFO] [stdout]    |
[INFO] [stdout] 40 |     let mut user_choice: u32;
[INFO] [stdout]    |         ----^^^^^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/generator.rs:45:13
[INFO] [stdout]    |
[INFO] [stdout] 45 |         for i in 0 .. self.arr_size {
[INFO] [stdout]    |             ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/generator.rs:53:13
[INFO] [stdout]    |
[INFO] [stdout] 53 |         for i in 0 .. self.arr_size {
[INFO] [stdout]    |             ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/generator.rs:61:13
[INFO] [stdout]    |
[INFO] [stdout] 61 |         for i in 0 .. self.arr_size {
[INFO] [stdout]    |             ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/algorithms.rs:13:9
[INFO] [stdout]    |
[INFO] [stdout] 13 |     let mut choice = read_user_choice();
[INFO] [stdout]    |         ----^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `data_type`
[INFO] [stdout]   --> src/algorithms.rs:17:41
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub fn match_algorithm_i32(choice: u32, data_type: u32, data: Vec<i32>) -> (Vec<i32>, std::time::Duration) {
[INFO] [stdout]    |                                         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_data_type`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/algorithms.rs:22:17
[INFO] [stdout]    |
[INFO] [stdout] 22 |             let mut tmp_vec = insertion_sort_i32(data);
[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]   --> src/algorithms.rs:30:17
[INFO] [stdout]    |
[INFO] [stdout] 30 |             let mut tmp_vec = heapsort_i32(data);
[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]   --> src/algorithms.rs:38:17
[INFO] [stdout]    |
[INFO] [stdout] 38 |             let mut tmp_vec = shell_sort_i32(data);
[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]   --> src/algorithms.rs:46:17
[INFO] [stdout]    |
[INFO] [stdout] 46 |             let mut tmp_vec = quicksort_i32(data);
[INFO] [stdout]    |                 ----^^^^^^^
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `data_type`
[INFO] [stdout]   --> src/algorithms.rs:58:41
[INFO] [stdout]    |
[INFO] [stdout] 58 | pub fn match_algorithm_f32(choice: u32, data_type: u32, data: Vec<f32>) -> (Vec<f32>, std::time::Duration) {
[INFO] [stdout]    |                                         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_data_type`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/algorithms.rs:63:17
[INFO] [stdout]    |
[INFO] [stdout] 63 |             let mut tmp_vec = insertion_sort_f32(data);
[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]   --> src/algorithms.rs:71:17
[INFO] [stdout]    |
[INFO] [stdout] 71 |             let mut tmp_vec = heapsort_f32(data);
[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]   --> src/algorithms.rs:79:17
[INFO] [stdout]    |
[INFO] [stdout] 79 |             let mut tmp_vec = shell_sort_f32(data);
[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]   --> src/algorithms.rs:87:17
[INFO] [stdout]    |
[INFO] [stdout] 87 |             let mut tmp_vec = quicksort_f32(data);
[INFO] [stdout]    |                 ----^^^^^^^
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `data_type`
[INFO] [stdout]   --> src/algorithms.rs:99:41
[INFO] [stdout]    |
[INFO] [stdout] 99 | pub fn match_algorithm_f64(choice: u32, data_type: u32, data: Vec<f64>) -> (Vec<f64>, std::time::Duration) {
[INFO] [stdout]    |                                         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_data_type`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/algorithms.rs:104:17
[INFO] [stdout]     |
[INFO] [stdout] 104 |             let mut tmp_vec = insertion_sort_f64(data);
[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]    --> src/algorithms.rs:112:17
[INFO] [stdout]     |
[INFO] [stdout] 112 |             let mut tmp_vec = heapsort_f64(data);
[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]    --> src/algorithms.rs:120:17
[INFO] [stdout]     |
[INFO] [stdout] 120 |             let mut tmp_vec = shell_sort_f64(data);
[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]    --> src/algorithms.rs:128:17
[INFO] [stdout]     |
[INFO] [stdout] 128 |             let mut tmp_vec = quicksort_f64(data);
[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]    --> src/algorithms.rs:496:9
[INFO] [stdout]     |
[INFO] [stdout] 496 |     let mut chunk_size = (len as f64 * percent).ceil() as usize;
[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]    --> src/algorithms.rs:520:9
[INFO] [stdout]     |
[INFO] [stdout] 520 |     let mut chunk_size = (len as f64 * percent).ceil() as usize;
[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]    --> src/algorithms.rs:544:9
[INFO] [stdout]     |
[INFO] [stdout] 544 |     let mut chunk_size = (len as f64 * percent).ceil() as usize;
[INFO] [stdout]     |         ----^^^^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `str_tmp` is never read
[INFO] [stdout]   --> src/data_handler.rs:79:13
[INFO] [stdout]    |
[INFO] [stdout] 79 |     let mut str_tmp: String = String::new();
[INFO] [stdout]    |             ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `str_tmp` is never read
[INFO] [stdout]    --> src/data_handler.rs:104:13
[INFO] [stdout]     |
[INFO] [stdout] 104 |     let mut str_tmp: String = String::new();
[INFO] [stdout]     |             ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `str_tmp` is never read
[INFO] [stdout]    --> src/data_handler.rs:129:13
[INFO] [stdout]     |
[INFO] [stdout] 129 |     let mut str_tmp: String = String::new();
[INFO] [stdout]     |             ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `tmp_file`
[INFO] [stdout]    --> src/data_handler.rs:149:9
[INFO] [stdout]     |
[INFO] [stdout] 149 |     let tmp_file = match tmp_file {
[INFO] [stdout]     |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_tmp_file`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `other_error`
[INFO] [stdout]    --> src/data_handler.rs:156:13
[INFO] [stdout]     |
[INFO] [stdout] 156 |             other_error => {
[INFO] [stdout]     |             ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_other_error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `err`
[INFO] [stdout]    --> src/data_handler.rs:176:13
[INFO] [stdout]     |
[INFO] [stdout] 176 |         Err(err) => println!("Failed to wipe the file: {}", filename),
[INFO] [stdout]     |             ^^^ help: if this is intentional, prefix it with an underscore: `_err`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/user.rs:95:29
[INFO] [stdout]    |
[INFO] [stdout] 95 | ...                   data_handler::write_data_i32(self.generator.get_arr_i32(), self.filename.clone());
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 95 |                             let _ = data_handler::write_data_i32(self.generator.get_arr_i32(), self.filename.clone());
[INFO] [stdout]    |                             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/user.rs:99:29
[INFO] [stdout]    |
[INFO] [stdout] 99 | ...                   data_handler::write_data_f32(self.generator.get_arr_f32(), self.filename.clone());
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 99 |                             let _ = data_handler::write_data_f32(self.generator.get_arr_f32(), self.filename.clone());
[INFO] [stdout]    |                             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/user.rs:103:29
[INFO] [stdout]     |
[INFO] [stdout] 103 | ...                   data_handler::write_data_f64(self.generator.get_arr_f64(), self.filename.clone());
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 103 |                             let _ = data_handler::write_data_f64(self.generator.get_arr_f64(), self.filename.clone());
[INFO] [stdout]     |                             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/user.rs:232:29
[INFO] [stdout]     |
[INFO] [stdout] 232 | ...                   data_handler::write_data_i32(self.generator.get_arr_i32(), self.filename.clone());
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 232 |                             let _ = data_handler::write_data_i32(self.generator.get_arr_i32(), self.filename.clone());
[INFO] [stdout]     |                             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/user.rs:236:29
[INFO] [stdout]     |
[INFO] [stdout] 236 | ...                   data_handler::write_data_f32(self.generator.get_arr_f32(), self.filename.clone());
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 236 |                             let _ = data_handler::write_data_f32(self.generator.get_arr_f32(), self.filename.clone());
[INFO] [stdout]     |                             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/user.rs:240:29
[INFO] [stdout]     |
[INFO] [stdout] 240 | ...                   data_handler::write_data_f64(self.generator.get_arr_f64(), self.filename.clone());
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 240 |                             let _ = data_handler::write_data_f64(self.generator.get_arr_f64(), self.filename.clone());
[INFO] [stdout]     |                             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/data_handler.rs:82:5
[INFO] [stdout]    |
[INFO] [stdout] 82 |     writeln!(file_tmp, "{}", data.len().to_string());
[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 the macro `writeln` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/data_handler.rs:107:5
[INFO] [stdout]     |
[INFO] [stdout] 107 |     writeln!(file_tmp, "{}", data.len().to_string());
[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 the macro `writeln` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/data_handler.rs:132:5
[INFO] [stdout]     |
[INFO] [stdout] 132 |     writeln!(file_tmp, "{}", data.len().to_string());
[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 the macro `writeln` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/data_handler.rs:165:9
[INFO] [stdout]     |
[INFO] [stdout] 165 |         fs::create_dir("./config/");
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 165 |         let _ = fs::create_dir("./config/");
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/data_handler.rs:169:9
[INFO] [stdout]     |
[INFO] [stdout] 169 |         fs::create_dir("./data/");
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 169 |         let _ = fs::create_dir("./data/");
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.15s
[INFO] running `Command { std: "docker" "inspect" "a6e2e30326af27d7aaad933338062323c6c2ee8a84f8df708d1d7dc080aae3ba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a6e2e30326af27d7aaad933338062323c6c2ee8a84f8df708d1d7dc080aae3ba", kill_on_drop: false }`
[INFO] [stdout] a6e2e30326af27d7aaad933338062323c6c2ee8a84f8df708d1d7dc080aae3ba