[INFO] cloning repository https://github.com/RobinGoldbach/prototyp_speed_networking
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/RobinGoldbach/prototyp_speed_networking" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRobinGoldbach%2Fprototyp_speed_networking", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRobinGoldbach%2Fprototyp_speed_networking'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 500c128bc075ece20699722bc28dcc4fa24d3af8
[INFO] building RobinGoldbach/prototyp_speed_networking 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%2FRobinGoldbach%2Fprototyp_speed_networking" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/RobinGoldbach/prototyp_speed_networking 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/RobinGoldbach/prototyp_speed_networking
[INFO] finished tweaking git repo https://github.com/RobinGoldbach/prototyp_speed_networking
[INFO] tweaked toml for git repo https://github.com/RobinGoldbach/prototyp_speed_networking written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/RobinGoldbach/prototyp_speed_networking 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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded xlsxwriter v0.3.5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] f8e93842083d82fad6a735bd7b95f6c41fcdf5b6646e8d698854b07ecf00b322
[INFO] running `Command { std: "docker" "start" "-a" "f8e93842083d82fad6a735bd7b95f6c41fcdf5b6646e8d698854b07ecf00b322", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f8e93842083d82fad6a735bd7b95f6c41fcdf5b6646e8d698854b07ecf00b322", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f8e93842083d82fad6a735bd7b95f6c41fcdf5b6646e8d698854b07ecf00b322", kill_on_drop: false }`
[INFO] [stdout] f8e93842083d82fad6a735bd7b95f6c41fcdf5b6646e8d698854b07ecf00b322
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] aef3895ff161a5ef42a7c82debb34079e8584fac51ea95a6e6aa11b4703f207b
[INFO] running `Command { std: "docker" "start" "-a" "aef3895ff161a5ef42a7c82debb34079e8584fac51ea95a6e6aa11b4703f207b", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling libc v0.2.139
[INFO] [stderr]    Compiling glob v0.3.1
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling proc-macro2 v1.0.50
[INFO] [stderr]    Compiling minimal-lexical v0.2.1
[INFO] [stderr]    Compiling unicode-width v0.1.10
[INFO] [stderr]    Compiling regex-syntax v0.6.28
[INFO] [stderr]    Compiling quote v1.0.23
[INFO] [stderr]    Compiling unicode-ident v1.0.6
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling clang-sys v1.4.0
[INFO] [stderr]    Compiling libloading v0.7.4
[INFO] [stderr]    Compiling ansi_term v0.12.1
[INFO] [stderr]    Compiling vec_map v0.8.2
[INFO] [stderr]    Compiling humantime v2.1.0
[INFO] [stderr]    Compiling either v1.8.0
[INFO] [stderr]    Compiling aho-corasick v0.7.20
[INFO] [stderr]    Compiling nom v7.1.3
[INFO] [stderr]    Compiling strsim v0.8.0
[INFO] [stderr]    Compiling termcolor v1.2.0
[INFO] [stderr]    Compiling bindgen v0.59.2
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling bitflags v1.3.2
[INFO] [stderr]    Compiling which v4.4.0
[INFO] [stderr]    Compiling clap v2.34.0
[INFO] [stderr]    Compiling lazycell v1.3.0
[INFO] [stderr]    Compiling shlex v1.1.0
[INFO] [stderr]    Compiling peeking_take_while v0.1.2
[INFO] [stderr]    Compiling rustc-hash v1.1.0
[INFO] [stderr]    Compiling cc v1.0.78
[INFO] [stderr]    Compiling ppv-lite86 v0.2.17
[INFO] [stderr]    Compiling regex v1.7.1
[INFO] [stderr]    Compiling getrandom v0.2.8
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling uuid v0.8.2
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling cexpr v0.6.0
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling env_logger v0.9.3
[INFO] [stderr]    Compiling libxlsxwriter-sys v1.1.4
[INFO] [stderr]    Compiling xlsxwriter v0.3.5
[INFO] [stderr]    Compiling hello_world v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::marker::Copy`
[INFO] [stdout]  --> src/persons.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::marker::Copy;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `core::time`
[INFO] [stdout]  --> src/main.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use core::time;
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::env`
[INFO] [stdout]  --> src/main.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::env;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `remove_file`
[INFO] [stdout]  --> src/main.rs:6:21
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::fs::{self, remove_file};
[INFO] [stdout]   |                     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `error::Error`
[INFO] [stdout]   --> src/main.rs:11:33
[INFO] [stdout]    |
[INFO] [stdout] 11 | use std::{collections::HashSet, error::Error, io, slice::SliceIndex};
[INFO] [stdout]    |                                 ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `uuid::Uuid`
[INFO] [stdout]   --> src/main.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | use uuid::Uuid;
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `DateTime as XLSDateTime`, `Format`, and `Worksheet`
[INFO] [stdout]   --> src/main.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 |     DateTime as XLSDateTime, Format, FormatAlignment, FormatColor, FormatUnderline, Workbook,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^  ^^^^^^
[INFO] [stdout] 15 |     Worksheet,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/main.rs:42:8
[INFO] [stdout]    |
[INFO] [stdout] 42 |     if (filename == "d\n".to_string()) {
[INFO] [stdout]    |        ^                             ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 42 -     if (filename == "d\n".to_string()) {
[INFO] [stdout] 42 +     if filename == "d\n".to_string() {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/main.rs:347:12
[INFO] [stdout]     |
[INFO] [stdout] 347 |         if (tmp.len() == 0) {
[INFO] [stdout]     |            ^              ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 347 -         if (tmp.len() == 0) {
[INFO] [stdout] 347 +         if tmp.len() == 0 {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/main.rs:372:16
[INFO] [stdout]     |
[INFO] [stdout] 372 |             if (counter < 6) {
[INFO] [stdout]     |                ^           ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 372 -             if (counter < 6) {
[INFO] [stdout] 372 +             if counter < 6 {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/main.rs:461:32
[INFO] [stdout]     |
[INFO] [stdout] 461 | ...                   if (name == person.name) {
[INFO] [stdout]     |                          ^                   ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 461 -                             if (name == person.name) {
[INFO] [stdout] 461 +                             if name == person.name {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/main.rs:634:28
[INFO] [stdout]     |
[INFO] [stdout] 634 |                         if (index == 0) {
[INFO] [stdout]     |                            ^          ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 634 -                         if (index == 0) {
[INFO] [stdout] 634 +                         if index == 0 {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/main.rs:838:28
[INFO] [stdout]     |
[INFO] [stdout] 838 |                         if (index == 0) {
[INFO] [stdout]     |                            ^          ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 838 -                         if (index == 0) {
[INFO] [stdout] 838 +                         if index == 0 {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]     --> src/main.rs:1082:24
[INFO] [stdout]      |
[INFO] [stdout] 1082 |                     if (met == 2) {
[INFO] [stdout]      |                        ^        ^
[INFO] [stdout]      |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 1082 -                     if (met == 2) {
[INFO] [stdout] 1082 +                     if met == 2 {
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]     --> src/main.rs:1085:24
[INFO] [stdout]      |
[INFO] [stdout] 1085 |                     if (met == 3) {
[INFO] [stdout]      |                        ^        ^
[INFO] [stdout]      |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 1085 -                     if (met == 3) {
[INFO] [stdout] 1085 +                     if met == 3 {
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]     --> src/main.rs:1088:24
[INFO] [stdout]      |
[INFO] [stdout] 1088 |                     if (met == 4) {
[INFO] [stdout]      |                        ^        ^
[INFO] [stdout]      |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 1088 -                     if (met == 4) {
[INFO] [stdout] 1088 +                     if met == 4 {
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]     --> src/main.rs:1127:16
[INFO] [stdout]      |
[INFO] [stdout] 1127 |             if (second_group_number != first_group_number) {
[INFO] [stdout]      |                ^                                         ^
[INFO] [stdout]      |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 1127 -             if (second_group_number != first_group_number) {
[INFO] [stdout] 1127 +             if second_group_number != first_group_number {
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]     --> src/main.rs:1166:12
[INFO] [stdout]      |
[INFO] [stdout] 1166 |         if (second_group_number == group_count - 1) {
[INFO] [stdout]      |            ^                                      ^
[INFO] [stdout]      |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 1166 -         if (second_group_number == group_count - 1) {
[INFO] [stdout] 1166 +         if second_group_number == group_count - 1 {
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]     --> src/main.rs:1201:16
[INFO] [stdout]      |
[INFO] [stdout] 1201 |             if (second_group_number != first_group_number
[INFO] [stdout]      |                ^
[INFO] [stdout] 1202 |                 && second_group_number != third_group_number)
[INFO] [stdout]      |                                                             ^
[INFO] [stdout]      |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 1201 ~             if second_group_number != first_group_number
[INFO] [stdout] 1202 ~                 && second_group_number != third_group_number
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]     --> src/main.rs:1208:16
[INFO] [stdout]      |
[INFO] [stdout] 1208 |             if (third_group_number != first_group_number
[INFO] [stdout]      |                ^
[INFO] [stdout] 1209 |                 && third_group_number != second_group_number)
[INFO] [stdout]      |                                                             ^
[INFO] [stdout]      |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 1208 ~             if third_group_number != first_group_number
[INFO] [stdout] 1209 ~                 && third_group_number != second_group_number
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]     --> src/main.rs:1307:16
[INFO] [stdout]      |
[INFO] [stdout] 1307 |             if (second_group_number != first_group_number
[INFO] [stdout]      |                ^
[INFO] [stdout] 1308 |                 && second_group_number != third_group_number
[INFO] [stdout] 1309 |                 && second_group_number != fourth_group_number)
[INFO] [stdout]      |                                                              ^
[INFO] [stdout]      |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 1307 ~             if second_group_number != first_group_number
[INFO] [stdout] 1308 |                 && second_group_number != third_group_number
[INFO] [stdout] 1309 ~                 && second_group_number != fourth_group_number
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]     --> src/main.rs:1316:16
[INFO] [stdout]      |
[INFO] [stdout] 1316 |             if (third_group_number != first_group_number
[INFO] [stdout]      |                ^
[INFO] [stdout] 1317 |                 && third_group_number != second_group_number
[INFO] [stdout] 1318 |                 && third_group_number != fourth_group_number)
[INFO] [stdout]      |                                                             ^
[INFO] [stdout]      |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 1316 ~             if third_group_number != first_group_number
[INFO] [stdout] 1317 |                 && third_group_number != second_group_number
[INFO] [stdout] 1318 ~                 && third_group_number != fourth_group_number
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]     --> src/main.rs:1325:16
[INFO] [stdout]      |
[INFO] [stdout] 1325 |             if (fourth_group_number != first_group_number
[INFO] [stdout]      |                ^
[INFO] [stdout] 1326 |                 && fourth_group_number != third_group_number
[INFO] [stdout] 1327 |                 && fourth_group_number != second_group_number)
[INFO] [stdout]      |                                                              ^
[INFO] [stdout]      |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 1325 ~             if fourth_group_number != first_group_number
[INFO] [stdout] 1326 |                 && fourth_group_number != third_group_number
[INFO] [stdout] 1327 ~                 && fourth_group_number != second_group_number
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]     --> src/main.rs:1463:16
[INFO] [stdout]      |
[INFO] [stdout] 1463 |             if (second_group_number != first_group_number
[INFO] [stdout]      |                ^
[INFO] [stdout] ...
[INFO] [stdout] 1469 |                 && second_group_number != eight_group_number)
[INFO] [stdout]      |                                                             ^
[INFO] [stdout]      |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 1463 ~             if second_group_number != first_group_number
[INFO] [stdout] 1464 |                 && second_group_number != third_group_number
[INFO] [stdout]  ...
[INFO] [stdout] 1468 |                 && second_group_number != seven_group_number
[INFO] [stdout] 1469 ~                 && second_group_number != eight_group_number
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]     --> src/main.rs:1475:16
[INFO] [stdout]      |
[INFO] [stdout] 1475 |             if (third_group_number != first_group_number
[INFO] [stdout]      |                ^
[INFO] [stdout] ...
[INFO] [stdout] 1481 |                 && third_group_number != eight_group_number)
[INFO] [stdout]      |                                                            ^
[INFO] [stdout]      |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 1475 ~             if third_group_number != first_group_number
[INFO] [stdout] 1476 |                 && third_group_number != second_group_number
[INFO] [stdout]  ...
[INFO] [stdout] 1480 |                 && third_group_number != seven_group_number
[INFO] [stdout] 1481 ~                 && third_group_number != eight_group_number
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]     --> src/main.rs:1487:16
[INFO] [stdout]      |
[INFO] [stdout] 1487 |             if (fourth_group_number != first_group_number
[INFO] [stdout]      |                ^
[INFO] [stdout] ...
[INFO] [stdout] 1493 |                 && fourth_group_number != eight_group_number)
[INFO] [stdout]      |                                                             ^
[INFO] [stdout]      |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 1487 ~             if fourth_group_number != first_group_number
[INFO] [stdout] 1488 |                 && fourth_group_number != third_group_number
[INFO] [stdout]  ...
[INFO] [stdout] 1492 |                 && fourth_group_number != seven_group_number
[INFO] [stdout] 1493 ~                 && fourth_group_number != eight_group_number
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]     --> src/main.rs:1499:16
[INFO] [stdout]      |
[INFO] [stdout] 1499 |             if (five_group_number != first_group_number
[INFO] [stdout]      |                ^
[INFO] [stdout] ...
[INFO] [stdout] 1505 |                 && five_group_number != eight_group_number)
[INFO] [stdout]      |                                                           ^
[INFO] [stdout]      |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 1499 ~             if five_group_number != first_group_number
[INFO] [stdout] 1500 |                 && five_group_number != second_group_number
[INFO] [stdout]  ...
[INFO] [stdout] 1504 |                 && five_group_number != seven_group_number
[INFO] [stdout] 1505 ~                 && five_group_number != eight_group_number
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]     --> src/main.rs:1511:16
[INFO] [stdout]      |
[INFO] [stdout] 1511 |             if (six_group_number != first_group_number
[INFO] [stdout]      |                ^
[INFO] [stdout] ...
[INFO] [stdout] 1517 |                 && six_group_number != eight_group_number)
[INFO] [stdout]      |                                                          ^
[INFO] [stdout]      |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 1511 ~             if six_group_number != first_group_number
[INFO] [stdout] 1512 |                 && six_group_number != second_group_number
[INFO] [stdout]  ...
[INFO] [stdout] 1516 |                 && six_group_number != seven_group_number
[INFO] [stdout] 1517 ~                 && six_group_number != eight_group_number
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]     --> src/main.rs:1523:16
[INFO] [stdout]      |
[INFO] [stdout] 1523 |             if (seven_group_number != first_group_number
[INFO] [stdout]      |                ^
[INFO] [stdout] ...
[INFO] [stdout] 1529 |                 && seven_group_number != eight_group_number)
[INFO] [stdout]      |                                                            ^
[INFO] [stdout]      |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 1523 ~             if seven_group_number != first_group_number
[INFO] [stdout] 1524 |                 && seven_group_number != second_group_number
[INFO] [stdout]  ...
[INFO] [stdout] 1528 |                 && seven_group_number != five_group_number
[INFO] [stdout] 1529 ~                 && seven_group_number != eight_group_number
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]     --> src/main.rs:1535:16
[INFO] [stdout]      |
[INFO] [stdout] 1535 |             if (eight_group_number != first_group_number
[INFO] [stdout]      |                ^
[INFO] [stdout] ...
[INFO] [stdout] 1541 |                 && eight_group_number != five_group_number)
[INFO] [stdout]      |                                                           ^
[INFO] [stdout]      |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 1535 ~             if eight_group_number != first_group_number
[INFO] [stdout] 1536 |                 && eight_group_number != second_group_number
[INFO] [stdout]  ...
[INFO] [stdout] 1540 |                 && eight_group_number != seven_group_number
[INFO] [stdout] 1541 ~                 && eight_group_number != five_group_number
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `slice::SliceIndex`
[INFO] [stdout]   --> src/main.rs:11:51
[INFO] [stdout]    |
[INFO] [stdout] 11 | use std::{collections::HashSet, error::Error, io, slice::SliceIndex};
[INFO] [stdout]    |                                                   ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `group`
[INFO] [stdout]   --> src/group.rs:21:23
[INFO] [stdout]    |
[INFO] [stdout] 21 |     fn copy(&mut self,group: Group) -> Group {
[INFO] [stdout]    |                       ^^^^^ help: if this is intentional, prefix it with an underscore: `_group`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `group_size3`
[INFO] [stdout]   --> src/main.rs:29:9
[INFO] [stdout]    |
[INFO] [stdout] 29 |     let group_size3 = 5;
[INFO] [stdout]    |         ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_group_size3`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `group_size2`
[INFO] [stdout]   --> src/main.rs:30:9
[INFO] [stdout]    |
[INFO] [stdout] 30 |     let group_size2 = 6;
[INFO] [stdout]    |         ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_group_size2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `current_group`
[INFO] [stdout]   --> src/main.rs:98:9
[INFO] [stdout]    |
[INFO] [stdout] 98 |     let current_group: Group = Group {
[INFO] [stdout]    |         ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_current_group`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `t`
[INFO] [stdout]    --> src/main.rs:111:9
[INFO] [stdout]     |
[INFO] [stdout] 111 |     let t = all_pers.clone();
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_t`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `current_group`
[INFO] [stdout]    --> src/main.rs:215:9
[INFO] [stdout]     |
[INFO] [stdout] 215 |     let current_group: Group = Group {
[INFO] [stdout]     |         ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_current_group`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `new_vec`
[INFO] [stdout]    --> src/main.rs:220:9
[INFO] [stdout]     |
[INFO] [stdout] 220 |     let new_vec: Vec<Group> = Vec::new();
[INFO] [stdout]     |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_new_vec`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `new_number`
[INFO] [stdout]    --> src/main.rs:254:17
[INFO] [stdout]     |
[INFO] [stdout] 254 |             let new_number = number - 60;
[INFO] [stdout]     |                 ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_new_number`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `new_number`
[INFO] [stdout]    --> src/main.rs:262:17
[INFO] [stdout]     |
[INFO] [stdout] 262 |             let new_number = number - 120;
[INFO] [stdout]     |                 ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_new_number`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `new_number`
[INFO] [stdout]    --> src/main.rs:270:17
[INFO] [stdout]     |
[INFO] [stdout] 270 |             let new_number = number - 180;
[INFO] [stdout]     |                 ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_new_number`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `new_number`
[INFO] [stdout]    --> src/main.rs:278:17
[INFO] [stdout]     |
[INFO] [stdout] 278 |             let new_number = number - 240;
[INFO] [stdout]     |                 ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_new_number`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `new_number`
[INFO] [stdout]    --> src/main.rs:286:17
[INFO] [stdout]     |
[INFO] [stdout] 286 |             let new_number = number - 300;
[INFO] [stdout]     |                 ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_new_number`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `sec_counter` is assigned to, but never used
[INFO] [stdout]    --> src/main.rs:334:13
[INFO] [stdout]     |
[INFO] [stdout] 334 |     let mut sec_counter = 0;
[INFO] [stdout]     |             ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: consider using `_sec_counter` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `init_person2`
[INFO] [stdout]    --> src/main.rs:361:17
[INFO] [stdout]     |
[INFO] [stdout] 361 |         let mut init_person2 = init_person1.clone();
[INFO] [stdout]     |                 ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_init_person2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/main.rs:363:13
[INFO] [stdout]     |
[INFO] [stdout] 363 |         for i in 0..group_size {
[INFO] [stdout]     |             ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `count`
[INFO] [stdout]    --> src/main.rs:424:21
[INFO] [stdout]     |
[INFO] [stdout] 424 |                 for count in pos_in_tmp {
[INFO] [stdout]     |                     ^^^^^ help: if this is intentional, prefix it with an underscore: `_count`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `t`
[INFO] [stdout]    --> src/main.rs:471:25
[INFO] [stdout]     |
[INFO] [stdout] 471 |                     let t = p_help.clone();
[INFO] [stdout]     |                         ^ help: if this is intentional, prefix it with an underscore: `_t`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `third_pers`
[INFO] [stdout]    --> src/main.rs:571:29
[INFO] [stdout]     |
[INFO] [stdout] 571 |                         let third_pers = names.pop().unwrap();
[INFO] [stdout]     |                             ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_third_pers`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `tmp_ind` is assigned to, but never used
[INFO] [stdout]    --> src/main.rs:633:33
[INFO] [stdout]     |
[INFO] [stdout] 633 |                         let mut tmp_ind = index;
[INFO] [stdout]     |                                 ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: consider using `_tmp_ind` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `tmp_ind` is never read
[INFO] [stdout]    --> src/main.rs:635:29
[INFO] [stdout]     |
[INFO] [stdout] 635 | ...                   tmp_ind = index;
[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 `tmp_ind` is never read
[INFO] [stdout]    --> src/main.rs:637:29
[INFO] [stdout]     |
[INFO] [stdout] 637 | ...                   tmp_ind = index - 1;
[INFO] [stdout]     |                       ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `len`
[INFO] [stdout]    --> src/main.rs:648:33
[INFO] [stdout]     |
[INFO] [stdout] 648 |                         let mut len = tmp.len() - 1;
[INFO] [stdout]     |                                 ^^^ help: if this is intentional, prefix it with an underscore: `_len`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `third_pers`
[INFO] [stdout]    --> src/main.rs:658:29
[INFO] [stdout]     |
[INFO] [stdout] 658 |                         let third_pers = names.pop().unwrap();
[INFO] [stdout]     |                             ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_third_pers`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `tmp_ind` is assigned to, but never used
[INFO] [stdout]    --> src/main.rs:837:33
[INFO] [stdout]     |
[INFO] [stdout] 837 |                         let mut tmp_ind = index;
[INFO] [stdout]     |                                 ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: consider using `_tmp_ind` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `tmp_ind` is never read
[INFO] [stdout]    --> src/main.rs:839:29
[INFO] [stdout]     |
[INFO] [stdout] 839 | ...                   tmp_ind = index;
[INFO] [stdout]     |                       ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `tmp_ind` is never read
[INFO] [stdout]    --> src/main.rs:841:29
[INFO] [stdout]     |
[INFO] [stdout] 841 | ...                   tmp_ind = index - 1;
[INFO] [stdout]     |                       ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `len`
[INFO] [stdout]    --> src/main.rs:852:33
[INFO] [stdout]     |
[INFO] [stdout] 852 |                         let mut len = tmp.len() - 1;
[INFO] [stdout]     |                                 ^^^ help: if this is intentional, prefix it with an underscore: `_len`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `possible_persons`
[INFO] [stdout]    --> src/main.rs:322:5
[INFO] [stdout]     |
[INFO] [stdout] 322 |     possible_persons: [Vec<i32>; 6],
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_possible_persons`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:357:13
[INFO] [stdout]     |
[INFO] [stdout] 357 |         let mut init_person = tmp.get(index - 1).unwrap().clone();
[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/main.rs:360:13
[INFO] [stdout]     |
[INFO] [stdout] 360 |         let mut init_person1 = init_person.clone();
[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/main.rs:361:13
[INFO] [stdout]     |
[INFO] [stdout] 361 |         let mut init_person2 = init_person1.clone();
[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/main.rs:449:21
[INFO] [stdout]     |
[INFO] [stdout] 449 |                 let mut cur_pers = persons_in_group
[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/main.rs:648:29
[INFO] [stdout]     |
[INFO] [stdout] 648 |                         let mut len = tmp.len() - 1;
[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/main.rs:852:29
[INFO] [stdout]     |
[INFO] [stdout] 852 |                         let mut len = tmp.len() - 1;
[INFO] [stdout]     |                             ----^^^
[INFO] [stdout]     |                             |
[INFO] [stdout]     |                             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `position` is never read
[INFO] [stdout]    --> src/main.rs:941:33
[INFO] [stdout]     |
[INFO] [stdout] 941 |                         let mut position = 0;
[INFO] [stdout]     |                                 ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `format1`
[INFO] [stdout]    --> src/main.rs:988:13
[INFO] [stdout]     |
[INFO] [stdout] 988 |     let mut format1 = workbook.add_format().set_font_color(FormatColor::Red);
[INFO] [stdout]     |             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_format1`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `format2`
[INFO] [stdout]    --> src/main.rs:990:13
[INFO] [stdout]     |
[INFO] [stdout] 990 |     let mut format2 = workbook
[INFO] [stdout]     |             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_format2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `format3`
[INFO] [stdout]    --> src/main.rs:995:13
[INFO] [stdout]     |
[INFO] [stdout] 995 |     let mut format3 = workbook
[INFO] [stdout]     |             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_format3`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:988:9
[INFO] [stdout]     |
[INFO] [stdout] 988 |     let mut format1 = workbook.add_format().set_font_color(FormatColor::Red);
[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/main.rs:990:9
[INFO] [stdout]     |
[INFO] [stdout] 990 |     let mut format2 = workbook
[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/main.rs:995:9
[INFO] [stdout]     |
[INFO] [stdout] 995 |     let mut format3 = workbook
[INFO] [stdout]     |         ----^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `PERSONS_MIN` is never used
[INFO] [stdout]   --> src/main.rs:24:11
[INFO] [stdout]    |
[INFO] [stdout] 24 |     const PERSONS_MIN: i32 = 120;
[INFO] [stdout]    |           ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `PERSONS_MAX` is never used
[INFO] [stdout]   --> src/main.rs:25:11
[INFO] [stdout]    |
[INFO] [stdout] 25 |     const PERSONS_MAX: i32 = 300;
[INFO] [stdout]    |           ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `PERSONS_Test_2` is never used
[INFO] [stdout]   --> src/main.rs:27:11
[INFO] [stdout]    |
[INFO] [stdout] 27 |     const PERSONS_Test_2: i32 = 200;
[INFO] [stdout]    |           ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `try_better_result2` is never used
[INFO] [stdout]     --> src/main.rs:1111:4
[INFO] [stdout]      |
[INFO] [stdout] 1111 | fn try_better_result2(
[INFO] [stdout]      |    ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `try_better_result3` is never used
[INFO] [stdout]     --> src/main.rs:1182:4
[INFO] [stdout]      |
[INFO] [stdout] 1182 | fn try_better_result3(
[INFO] [stdout]      |    ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `try_better_result8` is never used
[INFO] [stdout]     --> src/main.rs:1425:4
[INFO] [stdout]      |
[INFO] [stdout] 1425 | fn try_better_result8(
[INFO] [stdout]      |    ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `copy` is never used
[INFO] [stdout]   --> src/group.rs:21:8
[INFO] [stdout]    |
[INFO] [stdout] 12 | impl Group {
[INFO] [stdout]    | ---------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 21 |     fn copy(&mut self,group: Group) -> Group {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `Copy` is never used
[INFO] [stdout]   --> src/persons.rs:28:8
[INFO] [stdout]    |
[INFO] [stdout] 14 | impl Persons {
[INFO] [stdout]    | ------------ method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 28 |     fn Copy(&mut self) -> Persons {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `pers` should have an upper case name
[INFO] [stdout]   --> src/main.rs:26:11
[INFO] [stdout]    |
[INFO] [stdout] 26 |     const pers: i32 = 80;
[INFO] [stdout]    |           ^^^^ help: convert the identifier to upper case: `PERS`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_upper_case_globals)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `PERSONS_Test_2` should have an upper case name
[INFO] [stdout]   --> src/main.rs:27:11
[INFO] [stdout]    |
[INFO] [stdout] 27 |     const PERSONS_Test_2: i32 = 200;
[INFO] [stdout]    |           ^^^^^^^^^^^^^^ help: convert the identifier to upper case: `PERSONS_TEST_2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `name_10Min` should have a snake case name
[INFO] [stdout]    --> src/main.rs:133:9
[INFO] [stdout]     |
[INFO] [stdout] 133 |     let name_10Min = "10Minute_".to_string() + &filename.clone();
[INFO] [stdout]     |         ^^^^^^^^^^ help: convert the identifier to snake case: `name_10_min`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `name_20Min` should have a snake case name
[INFO] [stdout]    --> src/main.rs:134:9
[INFO] [stdout]     |
[INFO] [stdout] 134 |     let name_20Min = "20Minute_".to_string() + &filename.clone();
[INFO] [stdout]     |         ^^^^^^^^^^ help: convert the identifier to snake case: `name_20_min`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `name_5Min` should have a snake case name
[INFO] [stdout]    --> src/main.rs:135:9
[INFO] [stdout]     |
[INFO] [stdout] 135 |     let name_5Min = "5Minute_".to_string() + &filename.clone();
[INFO] [stdout]     |         ^^^^^^^^^ help: convert the identifier to snake case: `name_5_min`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `name_1Std` should have a snake case name
[INFO] [stdout]    --> src/main.rs:136:9
[INFO] [stdout]     |
[INFO] [stdout] 136 |     let name_1Std = "1Stunde_".to_string() + &filename.clone();
[INFO] [stdout]     |         ^^^^^^^^^ help: convert the identifier to snake case: `name_1_std`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `maxMeetings` should have a snake case name
[INFO] [stdout]    --> src/main.rs:885:13
[INFO] [stdout]     |
[INFO] [stdout] 885 |     let mut maxMeetings = 2;
[INFO] [stdout]     |             ^^^^^^^^^^^ help: convert the identifier to snake case: `max_meetings`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `tooMuchMeetings` should have a snake case name
[INFO] [stdout]    --> src/main.rs:886:9
[INFO] [stdout]     |
[INFO] [stdout] 886 |     let tooMuchMeetings = 5;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `too_much_meetings`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `groupClone` should have a snake case name
[INFO] [stdout]    --> src/main.rs:942:29
[INFO] [stdout]     |
[INFO] [stdout] 942 |                         let groupClone = group.clone();
[INFO] [stdout]     |                             ^^^^^^^^^^ help: convert the identifier to snake case: `group_clone`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]     --> src/main.rs:1009:17
[INFO] [stdout]      |
[INFO] [stdout] 1009 |                 sheet1.write_number(line_number, field_number, person.name.into(), None);
[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] 1009 |                 let _ = sheet1.write_number(line_number, field_number, person.name.into(), None);
[INFO] [stdout]      |                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]     --> src/main.rs:1038:9
[INFO] [stdout]      |
[INFO] [stdout] 1038 |         sheet1.write_string(line_number, field_number, &qua, None);
[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] 1038 |         let _ = sheet1.write_string(line_number, field_number, &qua, None);
[INFO] [stdout]      |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]     --> src/main.rs:1040:9
[INFO] [stdout]      |
[INFO] [stdout] 1040 |         sheet1.write_string(line_number, field_number, &q.to_string(), None);
[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] 1040 |         let _ = sheet1.write_string(line_number, field_number, &q.to_string(), None);
[INFO] [stdout]      |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `calculateQuality` should have a snake case name
[INFO] [stdout]     --> src/main.rs:1057:4
[INFO] [stdout]      |
[INFO] [stdout] 1057 | fn calculateQuality(
[INFO] [stdout]      |    ^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `calculate_quality`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `valueDobble` should have a snake case name
[INFO] [stdout]     --> src/main.rs:1058:5
[INFO] [stdout]      |
[INFO] [stdout] 1058 |     valueDobble: f64,
[INFO] [stdout]      |     ^^^^^^^^^^^ help: convert the identifier to snake case: `value_dobble`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `valueTrible` should have a snake case name
[INFO] [stdout]     --> src/main.rs:1059:5
[INFO] [stdout]      |
[INFO] [stdout] 1059 |     valueTrible: f64,
[INFO] [stdout]      |     ^^^^^^^^^^^ help: convert the identifier to snake case: `value_trible`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `valueQuatruple` should have a snake case name
[INFO] [stdout]     --> src/main.rs:1060:5
[INFO] [stdout]      |
[INFO] [stdout] 1060 |     valueQuatruple: f64,
[INFO] [stdout]      |     ^^^^^^^^^^^^^^ help: convert the identifier to snake case: `value_quatruple`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `calculatedArray` should have a snake case name
[INFO] [stdout]     --> src/main.rs:1069:13
[INFO] [stdout]      |
[INFO] [stdout] 1069 |     let mut calculatedArray = [0.0; 7];
[INFO] [stdout]      |             ^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `calculated_array`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `Copy` should have a snake case name
[INFO] [stdout]   --> src/persons.rs:28:8
[INFO] [stdout]    |
[INFO] [stdout] 28 |     fn Copy(&mut self) -> Persons {
[INFO] [stdout]    |        ^^^^ help: convert the identifier to snake case (notice the capitalization): `copy`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 18.62s
[INFO] running `Command { std: "docker" "inspect" "aef3895ff161a5ef42a7c82debb34079e8584fac51ea95a6e6aa11b4703f207b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aef3895ff161a5ef42a7c82debb34079e8584fac51ea95a6e6aa11b4703f207b", kill_on_drop: false }`
[INFO] [stdout] aef3895ff161a5ef42a7c82debb34079e8584fac51ea95a6e6aa11b4703f207b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 2bb39df12fa4dbd4af57f75f00a670dfb8658fdd4ac1b77a10ae60a6fa847e90
[INFO] running `Command { std: "docker" "start" "-a" "2bb39df12fa4dbd4af57f75f00a670dfb8658fdd4ac1b77a10ae60a6fa847e90", kill_on_drop: false }`
[INFO] [stderr]    Compiling hello_world v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::marker::Copy`
[INFO] [stdout]  --> src/persons.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::marker::Copy;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `core::time`
[INFO] [stdout]  --> src/main.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use core::time;
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::env`
[INFO] [stdout]  --> src/main.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::env;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `remove_file`
[INFO] [stdout]  --> src/main.rs:6:21
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::fs::{self, remove_file};
[INFO] [stdout]   |                     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `error::Error`
[INFO] [stdout]   --> src/main.rs:11:33
[INFO] [stdout]    |
[INFO] [stdout] 11 | use std::{collections::HashSet, error::Error, io, slice::SliceIndex};
[INFO] [stdout]    |                                 ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `uuid::Uuid`
[INFO] [stdout]   --> src/main.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | use uuid::Uuid;
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `DateTime as XLSDateTime`, `Format`, and `Worksheet`
[INFO] [stdout]   --> src/main.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 |     DateTime as XLSDateTime, Format, FormatAlignment, FormatColor, FormatUnderline, Workbook,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^  ^^^^^^
[INFO] [stdout] 15 |     Worksheet,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/main.rs:42:8
[INFO] [stdout]    |
[INFO] [stdout] 42 |     if (filename == "d\n".to_string()) {
[INFO] [stdout]    |        ^                             ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 42 -     if (filename == "d\n".to_string()) {
[INFO] [stdout] 42 +     if filename == "d\n".to_string() {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/main.rs:347:12
[INFO] [stdout]     |
[INFO] [stdout] 347 |         if (tmp.len() == 0) {
[INFO] [stdout]     |            ^              ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 347 -         if (tmp.len() == 0) {
[INFO] [stdout] 347 +         if tmp.len() == 0 {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/main.rs:372:16
[INFO] [stdout]     |
[INFO] [stdout] 372 |             if (counter < 6) {
[INFO] [stdout]     |                ^           ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 372 -             if (counter < 6) {
[INFO] [stdout] 372 +             if counter < 6 {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/main.rs:461:32
[INFO] [stdout]     |
[INFO] [stdout] 461 | ...                   if (name == person.name) {
[INFO] [stdout]     |                          ^                   ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 461 -                             if (name == person.name) {
[INFO] [stdout] 461 +                             if name == person.name {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/main.rs:634:28
[INFO] [stdout]     |
[INFO] [stdout] 634 |                         if (index == 0) {
[INFO] [stdout]     |                            ^          ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 634 -                         if (index == 0) {
[INFO] [stdout] 634 +                         if index == 0 {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/main.rs:838:28
[INFO] [stdout]     |
[INFO] [stdout] 838 |                         if (index == 0) {
[INFO] [stdout]     |                            ^          ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 838 -                         if (index == 0) {
[INFO] [stdout] 838 +                         if index == 0 {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]     --> src/main.rs:1082:24
[INFO] [stdout]      |
[INFO] [stdout] 1082 |                     if (met == 2) {
[INFO] [stdout]      |                        ^        ^
[INFO] [stdout]      |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 1082 -                     if (met == 2) {
[INFO] [stdout] 1082 +                     if met == 2 {
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]     --> src/main.rs:1085:24
[INFO] [stdout]      |
[INFO] [stdout] 1085 |                     if (met == 3) {
[INFO] [stdout]      |                        ^        ^
[INFO] [stdout]      |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 1085 -                     if (met == 3) {
[INFO] [stdout] 1085 +                     if met == 3 {
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]     --> src/main.rs:1088:24
[INFO] [stdout]      |
[INFO] [stdout] 1088 |                     if (met == 4) {
[INFO] [stdout]      |                        ^        ^
[INFO] [stdout]      |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 1088 -                     if (met == 4) {
[INFO] [stdout] 1088 +                     if met == 4 {
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]     --> src/main.rs:1127:16
[INFO] [stdout]      |
[INFO] [stdout] 1127 |             if (second_group_number != first_group_number) {
[INFO] [stdout]      |                ^                                         ^
[INFO] [stdout]      |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 1127 -             if (second_group_number != first_group_number) {
[INFO] [stdout] 1127 +             if second_group_number != first_group_number {
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]     --> src/main.rs:1166:12
[INFO] [stdout]      |
[INFO] [stdout] 1166 |         if (second_group_number == group_count - 1) {
[INFO] [stdout]      |            ^                                      ^
[INFO] [stdout]      |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 1166 -         if (second_group_number == group_count - 1) {
[INFO] [stdout] 1166 +         if second_group_number == group_count - 1 {
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]     --> src/main.rs:1201:16
[INFO] [stdout]      |
[INFO] [stdout] 1201 |             if (second_group_number != first_group_number
[INFO] [stdout]      |                ^
[INFO] [stdout] 1202 |                 && second_group_number != third_group_number)
[INFO] [stdout]      |                                                             ^
[INFO] [stdout]      |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 1201 ~             if second_group_number != first_group_number
[INFO] [stdout] 1202 ~                 && second_group_number != third_group_number
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]     --> src/main.rs:1208:16
[INFO] [stdout]      |
[INFO] [stdout] 1208 |             if (third_group_number != first_group_number
[INFO] [stdout]      |                ^
[INFO] [stdout] 1209 |                 && third_group_number != second_group_number)
[INFO] [stdout]      |                                                             ^
[INFO] [stdout]      |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 1208 ~             if third_group_number != first_group_number
[INFO] [stdout] 1209 ~                 && third_group_number != second_group_number
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]     --> src/main.rs:1307:16
[INFO] [stdout]      |
[INFO] [stdout] 1307 |             if (second_group_number != first_group_number
[INFO] [stdout]      |                ^
[INFO] [stdout] 1308 |                 && second_group_number != third_group_number
[INFO] [stdout] 1309 |                 && second_group_number != fourth_group_number)
[INFO] [stdout]      |                                                              ^
[INFO] [stdout]      |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 1307 ~             if second_group_number != first_group_number
[INFO] [stdout] 1308 |                 && second_group_number != third_group_number
[INFO] [stdout] 1309 ~                 && second_group_number != fourth_group_number
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]     --> src/main.rs:1316:16
[INFO] [stdout]      |
[INFO] [stdout] 1316 |             if (third_group_number != first_group_number
[INFO] [stdout]      |                ^
[INFO] [stdout] 1317 |                 && third_group_number != second_group_number
[INFO] [stdout] 1318 |                 && third_group_number != fourth_group_number)
[INFO] [stdout]      |                                                             ^
[INFO] [stdout]      |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 1316 ~             if third_group_number != first_group_number
[INFO] [stdout] 1317 |                 && third_group_number != second_group_number
[INFO] [stdout] 1318 ~                 && third_group_number != fourth_group_number
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]     --> src/main.rs:1325:16
[INFO] [stdout]      |
[INFO] [stdout] 1325 |             if (fourth_group_number != first_group_number
[INFO] [stdout]      |                ^
[INFO] [stdout] 1326 |                 && fourth_group_number != third_group_number
[INFO] [stdout] 1327 |                 && fourth_group_number != second_group_number)
[INFO] [stdout]      |                                                              ^
[INFO] [stdout]      |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 1325 ~             if fourth_group_number != first_group_number
[INFO] [stdout] 1326 |                 && fourth_group_number != third_group_number
[INFO] [stdout] 1327 ~                 && fourth_group_number != second_group_number
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]     --> src/main.rs:1463:16
[INFO] [stdout]      |
[INFO] [stdout] 1463 |             if (second_group_number != first_group_number
[INFO] [stdout]      |                ^
[INFO] [stdout] ...
[INFO] [stdout] 1469 |                 && second_group_number != eight_group_number)
[INFO] [stdout]      |                                                             ^
[INFO] [stdout]      |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 1463 ~             if second_group_number != first_group_number
[INFO] [stdout] 1464 |                 && second_group_number != third_group_number
[INFO] [stdout]  ...
[INFO] [stdout] 1468 |                 && second_group_number != seven_group_number
[INFO] [stdout] 1469 ~                 && second_group_number != eight_group_number
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]     --> src/main.rs:1475:16
[INFO] [stdout]      |
[INFO] [stdout] 1475 |             if (third_group_number != first_group_number
[INFO] [stdout]      |                ^
[INFO] [stdout] ...
[INFO] [stdout] 1481 |                 && third_group_number != eight_group_number)
[INFO] [stdout]      |                                                            ^
[INFO] [stdout]      |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 1475 ~             if third_group_number != first_group_number
[INFO] [stdout] 1476 |                 && third_group_number != second_group_number
[INFO] [stdout]  ...
[INFO] [stdout] 1480 |                 && third_group_number != seven_group_number
[INFO] [stdout] 1481 ~                 && third_group_number != eight_group_number
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]     --> src/main.rs:1487:16
[INFO] [stdout]      |
[INFO] [stdout] 1487 |             if (fourth_group_number != first_group_number
[INFO] [stdout]      |                ^
[INFO] [stdout] ...
[INFO] [stdout] 1493 |                 && fourth_group_number != eight_group_number)
[INFO] [stdout]      |                                                             ^
[INFO] [stdout]      |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 1487 ~             if fourth_group_number != first_group_number
[INFO] [stdout] 1488 |                 && fourth_group_number != third_group_number
[INFO] [stdout]  ...
[INFO] [stdout] 1492 |                 && fourth_group_number != seven_group_number
[INFO] [stdout] 1493 ~                 && fourth_group_number != eight_group_number
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]     --> src/main.rs:1499:16
[INFO] [stdout]      |
[INFO] [stdout] 1499 |             if (five_group_number != first_group_number
[INFO] [stdout]      |                ^
[INFO] [stdout] ...
[INFO] [stdout] 1505 |                 && five_group_number != eight_group_number)
[INFO] [stdout]      |                                                           ^
[INFO] [stdout]      |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 1499 ~             if five_group_number != first_group_number
[INFO] [stdout] 1500 |                 && five_group_number != second_group_number
[INFO] [stdout]  ...
[INFO] [stdout] 1504 |                 && five_group_number != seven_group_number
[INFO] [stdout] 1505 ~                 && five_group_number != eight_group_number
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]     --> src/main.rs:1511:16
[INFO] [stdout]      |
[INFO] [stdout] 1511 |             if (six_group_number != first_group_number
[INFO] [stdout]      |                ^
[INFO] [stdout] ...
[INFO] [stdout] 1517 |                 && six_group_number != eight_group_number)
[INFO] [stdout]      |                                                          ^
[INFO] [stdout]      |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 1511 ~             if six_group_number != first_group_number
[INFO] [stdout] 1512 |                 && six_group_number != second_group_number
[INFO] [stdout]  ...
[INFO] [stdout] 1516 |                 && six_group_number != seven_group_number
[INFO] [stdout] 1517 ~                 && six_group_number != eight_group_number
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]     --> src/main.rs:1523:16
[INFO] [stdout]      |
[INFO] [stdout] 1523 |             if (seven_group_number != first_group_number
[INFO] [stdout]      |                ^
[INFO] [stdout] ...
[INFO] [stdout] 1529 |                 && seven_group_number != eight_group_number)
[INFO] [stdout]      |                                                            ^
[INFO] [stdout]      |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 1523 ~             if seven_group_number != first_group_number
[INFO] [stdout] 1524 |                 && seven_group_number != second_group_number
[INFO] [stdout]  ...
[INFO] [stdout] 1528 |                 && seven_group_number != five_group_number
[INFO] [stdout] 1529 ~                 && seven_group_number != eight_group_number
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]     --> src/main.rs:1535:16
[INFO] [stdout]      |
[INFO] [stdout] 1535 |             if (eight_group_number != first_group_number
[INFO] [stdout]      |                ^
[INFO] [stdout] ...
[INFO] [stdout] 1541 |                 && eight_group_number != five_group_number)
[INFO] [stdout]      |                                                           ^
[INFO] [stdout]      |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 1535 ~             if eight_group_number != first_group_number
[INFO] [stdout] 1536 |                 && eight_group_number != second_group_number
[INFO] [stdout]  ...
[INFO] [stdout] 1540 |                 && eight_group_number != seven_group_number
[INFO] [stdout] 1541 ~                 && eight_group_number != five_group_number
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `slice::SliceIndex`
[INFO] [stdout]   --> src/main.rs:11:51
[INFO] [stdout]    |
[INFO] [stdout] 11 | use std::{collections::HashSet, error::Error, io, slice::SliceIndex};
[INFO] [stdout]    |                                                   ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `group`
[INFO] [stdout]   --> src/group.rs:21:23
[INFO] [stdout]    |
[INFO] [stdout] 21 |     fn copy(&mut self,group: Group) -> Group {
[INFO] [stdout]    |                       ^^^^^ help: if this is intentional, prefix it with an underscore: `_group`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `group_size3`
[INFO] [stdout]   --> src/main.rs:29:9
[INFO] [stdout]    |
[INFO] [stdout] 29 |     let group_size3 = 5;
[INFO] [stdout]    |         ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_group_size3`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `group_size2`
[INFO] [stdout]   --> src/main.rs:30:9
[INFO] [stdout]    |
[INFO] [stdout] 30 |     let group_size2 = 6;
[INFO] [stdout]    |         ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_group_size2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `current_group`
[INFO] [stdout]   --> src/main.rs:98:9
[INFO] [stdout]    |
[INFO] [stdout] 98 |     let current_group: Group = Group {
[INFO] [stdout]    |         ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_current_group`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `t`
[INFO] [stdout]    --> src/main.rs:111:9
[INFO] [stdout]     |
[INFO] [stdout] 111 |     let t = all_pers.clone();
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_t`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `current_group`
[INFO] [stdout]    --> src/main.rs:215:9
[INFO] [stdout]     |
[INFO] [stdout] 215 |     let current_group: Group = Group {
[INFO] [stdout]     |         ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_current_group`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `new_vec`
[INFO] [stdout]    --> src/main.rs:220:9
[INFO] [stdout]     |
[INFO] [stdout] 220 |     let new_vec: Vec<Group> = Vec::new();
[INFO] [stdout]     |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_new_vec`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `new_number`
[INFO] [stdout]    --> src/main.rs:254:17
[INFO] [stdout]     |
[INFO] [stdout] 254 |             let new_number = number - 60;
[INFO] [stdout]     |                 ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_new_number`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `new_number`
[INFO] [stdout]    --> src/main.rs:262:17
[INFO] [stdout]     |
[INFO] [stdout] 262 |             let new_number = number - 120;
[INFO] [stdout]     |                 ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_new_number`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `new_number`
[INFO] [stdout]    --> src/main.rs:270:17
[INFO] [stdout]     |
[INFO] [stdout] 270 |             let new_number = number - 180;
[INFO] [stdout]     |                 ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_new_number`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `new_number`
[INFO] [stdout]    --> src/main.rs:278:17
[INFO] [stdout]     |
[INFO] [stdout] 278 |             let new_number = number - 240;
[INFO] [stdout]     |                 ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_new_number`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `new_number`
[INFO] [stdout]    --> src/main.rs:286:17
[INFO] [stdout]     |
[INFO] [stdout] 286 |             let new_number = number - 300;
[INFO] [stdout]     |                 ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_new_number`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `sec_counter` is assigned to, but never used
[INFO] [stdout]    --> src/main.rs:334:13
[INFO] [stdout]     |
[INFO] [stdout] 334 |     let mut sec_counter = 0;
[INFO] [stdout]     |             ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: consider using `_sec_counter` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `init_person2`
[INFO] [stdout]    --> src/main.rs:361:17
[INFO] [stdout]     |
[INFO] [stdout] 361 |         let mut init_person2 = init_person1.clone();
[INFO] [stdout]     |                 ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_init_person2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/main.rs:363:13
[INFO] [stdout]     |
[INFO] [stdout] 363 |         for i in 0..group_size {
[INFO] [stdout]     |             ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `count`
[INFO] [stdout]    --> src/main.rs:424:21
[INFO] [stdout]     |
[INFO] [stdout] 424 |                 for count in pos_in_tmp {
[INFO] [stdout]     |                     ^^^^^ help: if this is intentional, prefix it with an underscore: `_count`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `t`
[INFO] [stdout]    --> src/main.rs:471:25
[INFO] [stdout]     |
[INFO] [stdout] 471 |                     let t = p_help.clone();
[INFO] [stdout]     |                         ^ help: if this is intentional, prefix it with an underscore: `_t`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `third_pers`
[INFO] [stdout]    --> src/main.rs:571:29
[INFO] [stdout]     |
[INFO] [stdout] 571 |                         let third_pers = names.pop().unwrap();
[INFO] [stdout]     |                             ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_third_pers`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `tmp_ind` is assigned to, but never used
[INFO] [stdout]    --> src/main.rs:633:33
[INFO] [stdout]     |
[INFO] [stdout] 633 |                         let mut tmp_ind = index;
[INFO] [stdout]     |                                 ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: consider using `_tmp_ind` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `tmp_ind` is never read
[INFO] [stdout]    --> src/main.rs:635:29
[INFO] [stdout]     |
[INFO] [stdout] 635 | ...                   tmp_ind = index;
[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 `tmp_ind` is never read
[INFO] [stdout]    --> src/main.rs:637:29
[INFO] [stdout]     |
[INFO] [stdout] 637 | ...                   tmp_ind = index - 1;
[INFO] [stdout]     |                       ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `len`
[INFO] [stdout]    --> src/main.rs:648:33
[INFO] [stdout]     |
[INFO] [stdout] 648 |                         let mut len = tmp.len() - 1;
[INFO] [stdout]     |                                 ^^^ help: if this is intentional, prefix it with an underscore: `_len`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `third_pers`
[INFO] [stdout]    --> src/main.rs:658:29
[INFO] [stdout]     |
[INFO] [stdout] 658 |                         let third_pers = names.pop().unwrap();
[INFO] [stdout]     |                             ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_third_pers`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `tmp_ind` is assigned to, but never used
[INFO] [stdout]    --> src/main.rs:837:33
[INFO] [stdout]     |
[INFO] [stdout] 837 |                         let mut tmp_ind = index;
[INFO] [stdout]     |                                 ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: consider using `_tmp_ind` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `tmp_ind` is never read
[INFO] [stdout]    --> src/main.rs:839:29
[INFO] [stdout]     |
[INFO] [stdout] 839 | ...                   tmp_ind = index;
[INFO] [stdout]     |                       ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `tmp_ind` is never read
[INFO] [stdout]    --> src/main.rs:841:29
[INFO] [stdout]     |
[INFO] [stdout] 841 | ...                   tmp_ind = index - 1;
[INFO] [stdout]     |                       ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `len`
[INFO] [stdout]    --> src/main.rs:852:33
[INFO] [stdout]     |
[INFO] [stdout] 852 |                         let mut len = tmp.len() - 1;
[INFO] [stdout]     |                                 ^^^ help: if this is intentional, prefix it with an underscore: `_len`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `possible_persons`
[INFO] [stdout]    --> src/main.rs:322:5
[INFO] [stdout]     |
[INFO] [stdout] 322 |     possible_persons: [Vec<i32>; 6],
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_possible_persons`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:357:13
[INFO] [stdout]     |
[INFO] [stdout] 357 |         let mut init_person = tmp.get(index - 1).unwrap().clone();
[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/main.rs:360:13
[INFO] [stdout]     |
[INFO] [stdout] 360 |         let mut init_person1 = init_person.clone();
[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/main.rs:361:13
[INFO] [stdout]     |
[INFO] [stdout] 361 |         let mut init_person2 = init_person1.clone();
[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/main.rs:449:21
[INFO] [stdout]     |
[INFO] [stdout] 449 |                 let mut cur_pers = persons_in_group
[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/main.rs:648:29
[INFO] [stdout]     |
[INFO] [stdout] 648 |                         let mut len = tmp.len() - 1;
[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/main.rs:852:29
[INFO] [stdout]     |
[INFO] [stdout] 852 |                         let mut len = tmp.len() - 1;
[INFO] [stdout]     |                             ----^^^
[INFO] [stdout]     |                             |
[INFO] [stdout]     |                             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `position` is never read
[INFO] [stdout]    --> src/main.rs:941:33
[INFO] [stdout]     |
[INFO] [stdout] 941 |                         let mut position = 0;
[INFO] [stdout]     |                                 ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `format1`
[INFO] [stdout]    --> src/main.rs:988:13
[INFO] [stdout]     |
[INFO] [stdout] 988 |     let mut format1 = workbook.add_format().set_font_color(FormatColor::Red);
[INFO] [stdout]     |             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_format1`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `format2`
[INFO] [stdout]    --> src/main.rs:990:13
[INFO] [stdout]     |
[INFO] [stdout] 990 |     let mut format2 = workbook
[INFO] [stdout]     |             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_format2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `format3`
[INFO] [stdout]    --> src/main.rs:995:13
[INFO] [stdout]     |
[INFO] [stdout] 995 |     let mut format3 = workbook
[INFO] [stdout]     |             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_format3`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:988:9
[INFO] [stdout]     |
[INFO] [stdout] 988 |     let mut format1 = workbook.add_format().set_font_color(FormatColor::Red);
[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/main.rs:990:9
[INFO] [stdout]     |
[INFO] [stdout] 990 |     let mut format2 = workbook
[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/main.rs:995:9
[INFO] [stdout]     |
[INFO] [stdout] 995 |     let mut format3 = workbook
[INFO] [stdout]     |         ----^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `try_better_result2` is never used
[INFO] [stdout]     --> src/main.rs:1111:4
[INFO] [stdout]      |
[INFO] [stdout] 1111 | fn try_better_result2(
[INFO] [stdout]      |    ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `try_better_result3` is never used
[INFO] [stdout]     --> src/main.rs:1182:4
[INFO] [stdout]      |
[INFO] [stdout] 1182 | fn try_better_result3(
[INFO] [stdout]      |    ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `try_better_result8` is never used
[INFO] [stdout]     --> src/main.rs:1425:4
[INFO] [stdout]      |
[INFO] [stdout] 1425 | fn try_better_result8(
[INFO] [stdout]      |    ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `copy` is never used
[INFO] [stdout]   --> src/group.rs:21:8
[INFO] [stdout]    |
[INFO] [stdout] 12 | impl Group {
[INFO] [stdout]    | ---------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 21 |     fn copy(&mut self,group: Group) -> Group {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `Copy` is never used
[INFO] [stdout]   --> src/persons.rs:28:8
[INFO] [stdout]    |
[INFO] [stdout] 14 | impl Persons {
[INFO] [stdout]    | ------------ method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 28 |     fn Copy(&mut self) -> Persons {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `pers` should have an upper case name
[INFO] [stdout]   --> src/main.rs:26:11
[INFO] [stdout]    |
[INFO] [stdout] 26 |     const pers: i32 = 80;
[INFO] [stdout]    |           ^^^^ help: convert the identifier to upper case: `PERS`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_upper_case_globals)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `PERSONS_Test_2` should have an upper case name
[INFO] [stdout]   --> src/main.rs:27:11
[INFO] [stdout]    |
[INFO] [stdout] 27 |     const PERSONS_Test_2: i32 = 200;
[INFO] [stdout]    |           ^^^^^^^^^^^^^^ help: convert the identifier to upper case: `PERSONS_TEST_2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `name_10Min` should have a snake case name
[INFO] [stdout]    --> src/main.rs:133:9
[INFO] [stdout]     |
[INFO] [stdout] 133 |     let name_10Min = "10Minute_".to_string() + &filename.clone();
[INFO] [stdout]     |         ^^^^^^^^^^ help: convert the identifier to snake case: `name_10_min`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `name_20Min` should have a snake case name
[INFO] [stdout]    --> src/main.rs:134:9
[INFO] [stdout]     |
[INFO] [stdout] 134 |     let name_20Min = "20Minute_".to_string() + &filename.clone();
[INFO] [stdout]     |         ^^^^^^^^^^ help: convert the identifier to snake case: `name_20_min`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `name_5Min` should have a snake case name
[INFO] [stdout]    --> src/main.rs:135:9
[INFO] [stdout]     |
[INFO] [stdout] 135 |     let name_5Min = "5Minute_".to_string() + &filename.clone();
[INFO] [stdout]     |         ^^^^^^^^^ help: convert the identifier to snake case: `name_5_min`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `name_1Std` should have a snake case name
[INFO] [stdout]    --> src/main.rs:136:9
[INFO] [stdout]     |
[INFO] [stdout] 136 |     let name_1Std = "1Stunde_".to_string() + &filename.clone();
[INFO] [stdout]     |         ^^^^^^^^^ help: convert the identifier to snake case: `name_1_std`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `maxMeetings` should have a snake case name
[INFO] [stdout]    --> src/main.rs:885:13
[INFO] [stdout]     |
[INFO] [stdout] 885 |     let mut maxMeetings = 2;
[INFO] [stdout]     |             ^^^^^^^^^^^ help: convert the identifier to snake case: `max_meetings`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `tooMuchMeetings` should have a snake case name
[INFO] [stdout]    --> src/main.rs:886:9
[INFO] [stdout]     |
[INFO] [stdout] 886 |     let tooMuchMeetings = 5;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `too_much_meetings`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `groupClone` should have a snake case name
[INFO] [stdout]    --> src/main.rs:942:29
[INFO] [stdout]     |
[INFO] [stdout] 942 |                         let groupClone = group.clone();
[INFO] [stdout]     |                             ^^^^^^^^^^ help: convert the identifier to snake case: `group_clone`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]     --> src/main.rs:1009:17
[INFO] [stdout]      |
[INFO] [stdout] 1009 |                 sheet1.write_number(line_number, field_number, person.name.into(), None);
[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] 1009 |                 let _ = sheet1.write_number(line_number, field_number, person.name.into(), None);
[INFO] [stdout]      |                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]     --> src/main.rs:1038:9
[INFO] [stdout]      |
[INFO] [stdout] 1038 |         sheet1.write_string(line_number, field_number, &qua, None);
[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] 1038 |         let _ = sheet1.write_string(line_number, field_number, &qua, None);
[INFO] [stdout]      |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]     --> src/main.rs:1040:9
[INFO] [stdout]      |
[INFO] [stdout] 1040 |         sheet1.write_string(line_number, field_number, &q.to_string(), None);
[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] 1040 |         let _ = sheet1.write_string(line_number, field_number, &q.to_string(), None);
[INFO] [stdout]      |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `calculateQuality` should have a snake case name
[INFO] [stdout]     --> src/main.rs:1057:4
[INFO] [stdout]      |
[INFO] [stdout] 1057 | fn calculateQuality(
[INFO] [stdout]      |    ^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `calculate_quality`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `valueDobble` should have a snake case name
[INFO] [stdout]     --> src/main.rs:1058:5
[INFO] [stdout]      |
[INFO] [stdout] 1058 |     valueDobble: f64,
[INFO] [stdout]      |     ^^^^^^^^^^^ help: convert the identifier to snake case: `value_dobble`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `valueTrible` should have a snake case name
[INFO] [stdout]     --> src/main.rs:1059:5
[INFO] [stdout]      |
[INFO] [stdout] 1059 |     valueTrible: f64,
[INFO] [stdout]      |     ^^^^^^^^^^^ help: convert the identifier to snake case: `value_trible`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `valueQuatruple` should have a snake case name
[INFO] [stdout]     --> src/main.rs:1060:5
[INFO] [stdout]      |
[INFO] [stdout] 1060 |     valueQuatruple: f64,
[INFO] [stdout]      |     ^^^^^^^^^^^^^^ help: convert the identifier to snake case: `value_quatruple`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `calculatedArray` should have a snake case name
[INFO] [stdout]     --> src/main.rs:1069:13
[INFO] [stdout]      |
[INFO] [stdout] 1069 |     let mut calculatedArray = [0.0; 7];
[INFO] [stdout]      |             ^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `calculated_array`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `Copy` should have a snake case name
[INFO] [stdout]   --> src/persons.rs:28:8
[INFO] [stdout]    |
[INFO] [stdout] 28 |     fn Copy(&mut self) -> Persons {
[INFO] [stdout]    |        ^^^^ help: convert the identifier to snake case (notice the capitalization): `copy`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.48s
[INFO] running `Command { std: "docker" "inspect" "2bb39df12fa4dbd4af57f75f00a670dfb8658fdd4ac1b77a10ae60a6fa847e90", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2bb39df12fa4dbd4af57f75f00a670dfb8658fdd4ac1b77a10ae60a6fa847e90", kill_on_drop: false }`
[INFO] [stdout] 2bb39df12fa4dbd4af57f75f00a670dfb8658fdd4ac1b77a10ae60a6fa847e90