[INFO] cloning repository https://github.com/halcyon/rust_tut
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/halcyon/rust_tut" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhalcyon%2Frust_tut", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhalcyon%2Frust_tut'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 558bf4aae326605a6934155e7faf29e8747627d9
[INFO] testing halcyon/rust_tut against 1.100.0-beta.1+cargoflags=--release for beta-release-1.100-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhalcyon%2Frust_tut" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/halcyon/rust_tut
[INFO] finished tweaking git repo https://github.com/halcyon/rust_tut
[INFO] tweaked toml for git repo https://github.com/halcyon/rust_tut written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/halcyon/rust_tut on toolchain 1.100.0-beta.1
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.100.0-beta.1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/halcyon/rust_tut 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" "+1.100.0-beta.1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: Cargo.toml: `package.edition` is unspecified, defaulting to `2015` while the latest is `2024`
[INFO] [stderr] warning: `rust_tut` (manifest) generated 1 warning
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:77db811e55d90add9212f6832c23229e3de5f1c1f9905e8cb07319ea15df73ac" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 287e05c7d8850ac65a770472851e7c82d1ae6107ad3368f1c4fa5c38eb241468
[INFO] running `Command { std: "docker" "start" "287e05c7d8850ac65a770472851e7c82d1ae6107ad3368f1c4fa5c38eb241468", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "287e05c7d8850ac65a770472851e7c82d1ae6107ad3368f1c4fa5c38eb241468", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "287e05c7d8850ac65a770472851e7c82d1ae6107ad3368f1c4fa5c38eb241468" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "287e05c7d8850ac65a770472851e7c82d1ae6107ad3368f1c4fa5c38eb241468", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "287e05c7d8850ac65a770472851e7c82d1ae6107ad3368f1c4fa5c38eb241468" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "build" "--frozen" "--message-format=json" "--release", kill_on_drop: false }`
[INFO] [stderr] warning: Cargo.toml: `package.edition` is unspecified, defaulting to `2015` while the latest is `2024`
[INFO] [stderr] warning: `rust_tut` (manifest) generated 1 warning
[INFO] [stderr]    Compiling rust_tut v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `u16`, `u32`, `u64`, and `u8`
[INFO] [stdout]  --> src/main.rs:1:30
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{i8, i16, i32, i64, u8, u16, u32, u64, isize, usize, f32, f64};
[INFO] [stdout]   |                              ^^  ^^^  ^^^  ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/main.rs:62:8
[INFO] [stdout]    |
[INFO] [stdout] 62 |     if (age_old == 5) {
[INFO] [stdout]    |        ^            ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 62 -     if (age_old == 5) {
[INFO] [stdout] 62 +     if age_old == 5 {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/main.rs:78:23
[INFO] [stdout]    |
[INFO] [stdout] 78 |     let can_vote = if (age_old >= 18) { true } else { false };
[INFO] [stdout]    |                       ^             ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 78 -     let can_vote = if (age_old >= 18) { true } else { false };
[INFO] [stdout] 78 +     let can_vote = if age_old >= 18 { true } else { false };
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/main.rs:85:12
[INFO] [stdout]    |
[INFO] [stdout] 85 |         if ((x % 2) == 0) {
[INFO] [stdout]    |            ^            ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 85 -         if ((x % 2) == 0) {
[INFO] [stdout] 85 +         if (x % 2) == 0 {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/main.rs:90:12
[INFO] [stdout]    |
[INFO] [stdout] 90 |         if (x > 10) {
[INFO] [stdout]    |            ^      ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 90 -         if (x > 10) {
[INFO] [stdout] 90 +         if x > 10 {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated module `std::i8`: all constants in this module replaced by associated constants on the type
[INFO] [stdout]  --> src/main.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{i8, i16, i32, i64, u8, u16, u32, u64, isize, usize, f32, f64};
[INFO] [stdout]   |           ^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated module `std::i16`: all constants in this module replaced by associated constants on the type
[INFO] [stdout]  --> src/main.rs:1:15
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{i8, i16, i32, i64, u8, u16, u32, u64, isize, usize, f32, f64};
[INFO] [stdout]   |               ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated module `std::i32`: all constants in this module replaced by associated constants on the type
[INFO] [stdout]  --> src/main.rs:1:20
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{i8, i16, i32, i64, u8, u16, u32, u64, isize, usize, f32, f64};
[INFO] [stdout]   |                    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated module `std::i64`: all constants in this module replaced by associated constants on the type
[INFO] [stdout]  --> src/main.rs:1:25
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{i8, i16, i32, i64, u8, u16, u32, u64, isize, usize, f32, f64};
[INFO] [stdout]   |                         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated module `std::u8`: all constants in this module replaced by associated constants on the type
[INFO] [stdout]  --> src/main.rs:1:30
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{i8, i16, i32, i64, u8, u16, u32, u64, isize, usize, f32, f64};
[INFO] [stdout]   |                              ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated module `std::u16`: all constants in this module replaced by associated constants on the type
[INFO] [stdout]  --> src/main.rs:1:34
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{i8, i16, i32, i64, u8, u16, u32, u64, isize, usize, f32, f64};
[INFO] [stdout]   |                                  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated module `std::u32`: all constants in this module replaced by associated constants on the type
[INFO] [stdout]  --> src/main.rs:1:39
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{i8, i16, i32, i64, u8, u16, u32, u64, isize, usize, f32, f64};
[INFO] [stdout]   |                                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated module `std::u64`: all constants in this module replaced by associated constants on the type
[INFO] [stdout]  --> src/main.rs:1:44
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{i8, i16, i32, i64, u8, u16, u32, u64, isize, usize, f32, f64};
[INFO] [stdout]   |                                            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated module `std::isize`: all constants in this module replaced by associated constants on the type
[INFO] [stdout]  --> src/main.rs:1:49
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{i8, i16, i32, i64, u8, u16, u32, u64, isize, usize, f32, f64};
[INFO] [stdout]   |                                                 ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated module `std::usize`: all constants in this module replaced by associated constants on the type
[INFO] [stdout]  --> src/main.rs:1:56
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{i8, i16, i32, i64, u8, u16, u32, u64, isize, usize, f32, f64};
[INFO] [stdout]   |                                                        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::i8::MAX`: replaced by the `MAX` associated constant on this type
[INFO] [stdout]   --> src/main.rs:12:31
[INFO] [stdout]    |
[INFO] [stdout] 12 |     println!("Max i8 {}", i8::MAX);
[INFO] [stdout]    |                               ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::i8::MIN`: replaced by the `MIN` associated constant on this type
[INFO] [stdout]   --> src/main.rs:13:31
[INFO] [stdout]    |
[INFO] [stdout] 13 |     println!("Min i8 {}", i8::MIN);
[INFO] [stdout]    |                               ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::i16::MAX`: replaced by the `MAX` associated constant on this type
[INFO] [stdout]   --> src/main.rs:14:33
[INFO] [stdout]    |
[INFO] [stdout] 14 |     println!("Max i16 {}", i16::MAX);
[INFO] [stdout]    |                                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::i16::MIN`: replaced by the `MIN` associated constant on this type
[INFO] [stdout]   --> src/main.rs:15:33
[INFO] [stdout]    |
[INFO] [stdout] 15 |     println!("Min i16 {}", i16::MIN);
[INFO] [stdout]    |                                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::i32::MAX`: replaced by the `MAX` associated constant on this type
[INFO] [stdout]   --> src/main.rs:16:33
[INFO] [stdout]    |
[INFO] [stdout] 16 |     println!("Max i32 {}", i32::MAX);
[INFO] [stdout]    |                                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::i32::MIN`: replaced by the `MIN` associated constant on this type
[INFO] [stdout]   --> src/main.rs:17:33
[INFO] [stdout]    |
[INFO] [stdout] 17 |     println!("Min i32 {}", i32::MIN);
[INFO] [stdout]    |                                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::i64::MAX`: replaced by the `MAX` associated constant on this type
[INFO] [stdout]   --> src/main.rs:18:33
[INFO] [stdout]    |
[INFO] [stdout] 18 |     println!("Max i64 {}", i64::MAX);
[INFO] [stdout]    |                                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::i64::MIN`: replaced by the `MIN` associated constant on this type
[INFO] [stdout]   --> src/main.rs:19:33
[INFO] [stdout]    |
[INFO] [stdout] 19 |     println!("Min i64 {}", i64::MIN);
[INFO] [stdout]    |                                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::isize::MAX`: replaced by the `MAX` associated constant on this type
[INFO] [stdout]   --> src/main.rs:20:37
[INFO] [stdout]    |
[INFO] [stdout] 20 |     println!("Max isize {}", isize::MAX);
[INFO] [stdout]    |                                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::isize::MIN`: replaced by the `MIN` associated constant on this type
[INFO] [stdout]   --> src/main.rs:21:37
[INFO] [stdout]    |
[INFO] [stdout] 21 |     println!("Min isize {}", isize::MIN);
[INFO] [stdout]    |                                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::usize::MAX`: replaced by the `MAX` associated constant on this type
[INFO] [stdout]   --> src/main.rs:22:37
[INFO] [stdout]    |
[INFO] [stdout] 22 |     println!("Max usize {}", usize::MAX);
[INFO] [stdout]    |                                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::usize::MIN`: replaced by the `MIN` associated constant on this type
[INFO] [stdout]   --> src/main.rs:23:37
[INFO] [stdout]    |
[INFO] [stdout] 23 |     println!("Min usize {}", usize::MIN);
[INFO] [stdout]    |                                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::f32::MAX`: replaced by the `MAX` associated constant on `f32`
[INFO] [stdout]   --> src/main.rs:24:33
[INFO] [stdout]    |
[INFO] [stdout] 24 |     println!("Max f32 {}", f32::MAX);
[INFO] [stdout]    |                                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::f32::MIN`: replaced by the `MIN` associated constant on `f32`
[INFO] [stdout]   --> src/main.rs:25:33
[INFO] [stdout]    |
[INFO] [stdout] 25 |     println!("Min f32 {}", f32::MIN);
[INFO] [stdout]    |                                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::f64::MAX`: replaced by the `MAX` associated constant on `f64`
[INFO] [stdout]   --> src/main.rs:26:33
[INFO] [stdout]    |
[INFO] [stdout] 26 |     println!("Max f64 {}", f64::MAX);
[INFO] [stdout]    |                                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::f64::MIN`: replaced by the `MIN` associated constant on `f64`
[INFO] [stdout]   --> src/main.rs:27:33
[INFO] [stdout]    |
[INFO] [stdout] 27 |     println!("Min f64 {}", f64::MIN);
[INFO] [stdout]    |                                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 10 |     let mut age: i32 = 40;
[INFO] [stdout]    |         ----^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:52:9
[INFO] [stdout]    |
[INFO] [stdout] 52 |     let mut neg_4 = -4i32;
[INFO] [stdout]    |         ----^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `num`
[INFO] [stdout]  --> src/main.rs:8:9
[INFO] [stdout]   |
[INFO] [stdout] 8 |     let num = 10;
[INFO] [stdout]   |         ^^^ help: if this is intentional, prefix it with an underscore: `_num`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `f_name`
[INFO] [stdout]   --> src/main.rs:34:10
[INFO] [stdout]    |
[INFO] [stdout] 34 |     let (f_name, l_name) = ("Derek", "Banas");
[INFO] [stdout]    |          ^^^^^^ help: if this is intentional, prefix it with an underscore: `_f_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `l_name`
[INFO] [stdout]   --> src/main.rs:34:18
[INFO] [stdout]    |
[INFO] [stdout] 34 |     let (f_name, l_name) = ("Derek", "Banas");
[INFO] [stdout]    |                  ^^^^^^ help: if this is intentional, prefix it with an underscore: `_l_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `count`
[INFO] [stdout]    --> src/main.rs:116:9
[INFO] [stdout]     |
[INFO] [stdout] 116 |     let count = rand_string.chars().count();
[INFO] [stdout]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_count`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `release` profile [optimized] target(s) in 0.69s
[INFO] running `Command { std: "docker" "inspect" "287e05c7d8850ac65a770472851e7c82d1ae6107ad3368f1c4fa5c38eb241468", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "287e05c7d8850ac65a770472851e7c82d1ae6107ad3368f1c4fa5c38eb241468" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "test" "--frozen" "--no-run" "--message-format=json" "--release", kill_on_drop: false }`
[INFO] [stderr] warning: Cargo.toml: `package.edition` is unspecified, defaulting to `2015` while the latest is `2024`
[INFO] [stderr] warning: `rust_tut` (manifest) generated 1 warning
[INFO] [stderr]    Compiling rust_tut v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `u16`, `u32`, `u64`, and `u8`
[INFO] [stdout]  --> src/main.rs:1:30
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{i8, i16, i32, i64, u8, u16, u32, u64, isize, usize, f32, f64};
[INFO] [stdout]   |                              ^^  ^^^  ^^^  ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/main.rs:62:8
[INFO] [stdout]    |
[INFO] [stdout] 62 |     if (age_old == 5) {
[INFO] [stdout]    |        ^            ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 62 -     if (age_old == 5) {
[INFO] [stdout] 62 +     if age_old == 5 {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/main.rs:78:23
[INFO] [stdout]    |
[INFO] [stdout] 78 |     let can_vote = if (age_old >= 18) { true } else { false };
[INFO] [stdout]    |                       ^             ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 78 -     let can_vote = if (age_old >= 18) { true } else { false };
[INFO] [stdout] 78 +     let can_vote = if age_old >= 18 { true } else { false };
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/main.rs:85:12
[INFO] [stdout]    |
[INFO] [stdout] 85 |         if ((x % 2) == 0) {
[INFO] [stdout]    |            ^            ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 85 -         if ((x % 2) == 0) {
[INFO] [stdout] 85 +         if (x % 2) == 0 {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/main.rs:90:12
[INFO] [stdout]    |
[INFO] [stdout] 90 |         if (x > 10) {
[INFO] [stdout]    |            ^      ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 90 -         if (x > 10) {
[INFO] [stdout] 90 +         if x > 10 {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated module `std::i8`: all constants in this module replaced by associated constants on the type
[INFO] [stdout]  --> src/main.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{i8, i16, i32, i64, u8, u16, u32, u64, isize, usize, f32, f64};
[INFO] [stdout]   |           ^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated module `std::i16`: all constants in this module replaced by associated constants on the type
[INFO] [stdout]  --> src/main.rs:1:15
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{i8, i16, i32, i64, u8, u16, u32, u64, isize, usize, f32, f64};
[INFO] [stdout]   |               ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated module `std::i32`: all constants in this module replaced by associated constants on the type
[INFO] [stdout]  --> src/main.rs:1:20
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{i8, i16, i32, i64, u8, u16, u32, u64, isize, usize, f32, f64};
[INFO] [stdout]   |                    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated module `std::i64`: all constants in this module replaced by associated constants on the type
[INFO] [stdout]  --> src/main.rs:1:25
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{i8, i16, i32, i64, u8, u16, u32, u64, isize, usize, f32, f64};
[INFO] [stdout]   |                         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated module `std::u8`: all constants in this module replaced by associated constants on the type
[INFO] [stdout]  --> src/main.rs:1:30
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{i8, i16, i32, i64, u8, u16, u32, u64, isize, usize, f32, f64};
[INFO] [stdout]   |                              ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated module `std::u16`: all constants in this module replaced by associated constants on the type
[INFO] [stdout]  --> src/main.rs:1:34
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{i8, i16, i32, i64, u8, u16, u32, u64, isize, usize, f32, f64};
[INFO] [stdout]   |                                  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated module `std::u32`: all constants in this module replaced by associated constants on the type
[INFO] [stdout]  --> src/main.rs:1:39
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{i8, i16, i32, i64, u8, u16, u32, u64, isize, usize, f32, f64};
[INFO] [stdout]   |                                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated module `std::u64`: all constants in this module replaced by associated constants on the type
[INFO] [stdout]  --> src/main.rs:1:44
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{i8, i16, i32, i64, u8, u16, u32, u64, isize, usize, f32, f64};
[INFO] [stdout]   |                                            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated module `std::isize`: all constants in this module replaced by associated constants on the type
[INFO] [stdout]  --> src/main.rs:1:49
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{i8, i16, i32, i64, u8, u16, u32, u64, isize, usize, f32, f64};
[INFO] [stdout]   |                                                 ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated module `std::usize`: all constants in this module replaced by associated constants on the type
[INFO] [stdout]  --> src/main.rs:1:56
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{i8, i16, i32, i64, u8, u16, u32, u64, isize, usize, f32, f64};
[INFO] [stdout]   |                                                        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::i8::MAX`: replaced by the `MAX` associated constant on this type
[INFO] [stdout]   --> src/main.rs:12:31
[INFO] [stdout]    |
[INFO] [stdout] 12 |     println!("Max i8 {}", i8::MAX);
[INFO] [stdout]    |                               ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::i8::MIN`: replaced by the `MIN` associated constant on this type
[INFO] [stdout]   --> src/main.rs:13:31
[INFO] [stdout]    |
[INFO] [stdout] 13 |     println!("Min i8 {}", i8::MIN);
[INFO] [stdout]    |                               ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::i16::MAX`: replaced by the `MAX` associated constant on this type
[INFO] [stdout]   --> src/main.rs:14:33
[INFO] [stdout]    |
[INFO] [stdout] 14 |     println!("Max i16 {}", i16::MAX);
[INFO] [stdout]    |                                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::i16::MIN`: replaced by the `MIN` associated constant on this type
[INFO] [stdout]   --> src/main.rs:15:33
[INFO] [stdout]    |
[INFO] [stdout] 15 |     println!("Min i16 {}", i16::MIN);
[INFO] [stdout]    |                                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::i32::MAX`: replaced by the `MAX` associated constant on this type
[INFO] [stdout]   --> src/main.rs:16:33
[INFO] [stdout]    |
[INFO] [stdout] 16 |     println!("Max i32 {}", i32::MAX);
[INFO] [stdout]    |                                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::i32::MIN`: replaced by the `MIN` associated constant on this type
[INFO] [stdout]   --> src/main.rs:17:33
[INFO] [stdout]    |
[INFO] [stdout] 17 |     println!("Min i32 {}", i32::MIN);
[INFO] [stdout]    |                                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::i64::MAX`: replaced by the `MAX` associated constant on this type
[INFO] [stdout]   --> src/main.rs:18:33
[INFO] [stdout]    |
[INFO] [stdout] 18 |     println!("Max i64 {}", i64::MAX);
[INFO] [stdout]    |                                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::i64::MIN`: replaced by the `MIN` associated constant on this type
[INFO] [stdout]   --> src/main.rs:19:33
[INFO] [stdout]    |
[INFO] [stdout] 19 |     println!("Min i64 {}", i64::MIN);
[INFO] [stdout]    |                                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::isize::MAX`: replaced by the `MAX` associated constant on this type
[INFO] [stdout]   --> src/main.rs:20:37
[INFO] [stdout]    |
[INFO] [stdout] 20 |     println!("Max isize {}", isize::MAX);
[INFO] [stdout]    |                                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::isize::MIN`: replaced by the `MIN` associated constant on this type
[INFO] [stdout]   --> src/main.rs:21:37
[INFO] [stdout]    |
[INFO] [stdout] 21 |     println!("Min isize {}", isize::MIN);
[INFO] [stdout]    |                                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::usize::MAX`: replaced by the `MAX` associated constant on this type
[INFO] [stdout]   --> src/main.rs:22:37
[INFO] [stdout]    |
[INFO] [stdout] 22 |     println!("Max usize {}", usize::MAX);
[INFO] [stdout]    |                                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::usize::MIN`: replaced by the `MIN` associated constant on this type
[INFO] [stdout]   --> src/main.rs:23:37
[INFO] [stdout]    |
[INFO] [stdout] 23 |     println!("Min usize {}", usize::MIN);
[INFO] [stdout]    |                                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::f32::MAX`: replaced by the `MAX` associated constant on `f32`
[INFO] [stdout]   --> src/main.rs:24:33
[INFO] [stdout]    |
[INFO] [stdout] 24 |     println!("Max f32 {}", f32::MAX);
[INFO] [stdout]    |                                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::f32::MIN`: replaced by the `MIN` associated constant on `f32`
[INFO] [stdout]   --> src/main.rs:25:33
[INFO] [stdout]    |
[INFO] [stdout] 25 |     println!("Min f32 {}", f32::MIN);
[INFO] [stdout]    |                                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::f64::MAX`: replaced by the `MAX` associated constant on `f64`
[INFO] [stdout]   --> src/main.rs:26:33
[INFO] [stdout]    |
[INFO] [stdout] 26 |     println!("Max f64 {}", f64::MAX);
[INFO] [stdout]    |                                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::f64::MIN`: replaced by the `MIN` associated constant on `f64`
[INFO] [stdout]   --> src/main.rs:27:33
[INFO] [stdout]    |
[INFO] [stdout] 27 |     println!("Min f64 {}", f64::MIN);
[INFO] [stdout]    |                                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 10 |     let mut age: i32 = 40;
[INFO] [stdout]    |         ----^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:52:9
[INFO] [stdout]    |
[INFO] [stdout] 52 |     let mut neg_4 = -4i32;
[INFO] [stdout]    |         ----^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `num`
[INFO] [stdout]  --> src/main.rs:8:9
[INFO] [stdout]   |
[INFO] [stdout] 8 |     let num = 10;
[INFO] [stdout]   |         ^^^ help: if this is intentional, prefix it with an underscore: `_num`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `f_name`
[INFO] [stdout]   --> src/main.rs:34:10
[INFO] [stdout]    |
[INFO] [stdout] 34 |     let (f_name, l_name) = ("Derek", "Banas");
[INFO] [stdout]    |          ^^^^^^ help: if this is intentional, prefix it with an underscore: `_f_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `l_name`
[INFO] [stdout]   --> src/main.rs:34:18
[INFO] [stdout]    |
[INFO] [stdout] 34 |     let (f_name, l_name) = ("Derek", "Banas");
[INFO] [stdout]    |                  ^^^^^^ help: if this is intentional, prefix it with an underscore: `_l_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `count`
[INFO] [stdout]    --> src/main.rs:116:9
[INFO] [stdout]     |
[INFO] [stdout] 116 |     let count = rand_string.chars().count();
[INFO] [stdout]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_count`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `release` profile [optimized] target(s) in 0.30s
[INFO] running `Command { std: "docker" "inspect" "287e05c7d8850ac65a770472851e7c82d1ae6107ad3368f1c4fa5c38eb241468", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "287e05c7d8850ac65a770472851e7c82d1ae6107ad3368f1c4fa5c38eb241468" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "test" "--frozen" "--release", kill_on_drop: false }`
[INFO] [stderr] warning: Cargo.toml: `package.edition` is unspecified, defaulting to `2015` while the latest is `2024`
[INFO] [stderr] warning: `rust_tut` (manifest) generated 1 warning
[INFO] [stderr] warning: unused imports: `u16`, `u32`, `u64`, and `u8`
[INFO] [stderr]  --> src/main.rs:1:30
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::{i8, i16, i32, i64, u8, u16, u32, u64, isize, usize, f32, f64};
[INFO] [stderr]   |                              ^^  ^^^  ^^^  ^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `if` condition
[INFO] [stderr]   --> src/main.rs:62:8
[INFO] [stderr]    |
[INFO] [stderr] 62 |     if (age_old == 5) {
[INFO] [stderr]    |        ^            ^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr] 62 -     if (age_old == 5) {
[INFO] [stderr] 62 +     if age_old == 5 {
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `if` condition
[INFO] [stderr]   --> src/main.rs:78:23
[INFO] [stderr]    |
[INFO] [stderr] 78 |     let can_vote = if (age_old >= 18) { true } else { false };
[INFO] [stderr]    |                       ^             ^
[INFO] [stderr]    |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr] 78 -     let can_vote = if (age_old >= 18) { true } else { false };
[INFO] [stderr] 78 +     let can_vote = if age_old >= 18 { true } else { false };
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `if` condition
[INFO] [stderr]   --> src/main.rs:85:12
[INFO] [stderr]    |
[INFO] [stderr] 85 |         if ((x % 2) == 0) {
[INFO] [stderr]    |            ^            ^
[INFO] [stderr]    |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr] 85 -         if ((x % 2) == 0) {
[INFO] [stderr] 85 +         if (x % 2) == 0 {
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `if` condition
[INFO] [stderr]   --> src/main.rs:90:12
[INFO] [stderr]    |
[INFO] [stderr] 90 |         if (x > 10) {
[INFO] [stderr]    |            ^      ^
[INFO] [stderr]    |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr] 90 -         if (x > 10) {
[INFO] [stderr] 90 +         if x > 10 {
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated module `std::i8`: all constants in this module replaced by associated constants on the type
[INFO] [stderr]  --> src/main.rs:1:11
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::{i8, i16, i32, i64, u8, u16, u32, u64, isize, usize, f32, f64};
[INFO] [stderr]   |           ^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated module `std::i16`: all constants in this module replaced by associated constants on the type
[INFO] [stderr]  --> src/main.rs:1:15
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::{i8, i16, i32, i64, u8, u16, u32, u64, isize, usize, f32, f64};
[INFO] [stderr]   |               ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated module `std::i32`: all constants in this module replaced by associated constants on the type
[INFO] [stderr]  --> src/main.rs:1:20
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::{i8, i16, i32, i64, u8, u16, u32, u64, isize, usize, f32, f64};
[INFO] [stderr]   |                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated module `std::i64`: all constants in this module replaced by associated constants on the type
[INFO] [stderr]  --> src/main.rs:1:25
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::{i8, i16, i32, i64, u8, u16, u32, u64, isize, usize, f32, f64};
[INFO] [stderr]   |                         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated module `std::u8`: all constants in this module replaced by associated constants on the type
[INFO] [stderr]  --> src/main.rs:1:30
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::{i8, i16, i32, i64, u8, u16, u32, u64, isize, usize, f32, f64};
[INFO] [stderr]   |                              ^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated module `std::u16`: all constants in this module replaced by associated constants on the type
[INFO] [stderr]  --> src/main.rs:1:34
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::{i8, i16, i32, i64, u8, u16, u32, u64, isize, usize, f32, f64};
[INFO] [stderr]   |                                  ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated module `std::u32`: all constants in this module replaced by associated constants on the type
[INFO] [stderr]  --> src/main.rs:1:39
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::{i8, i16, i32, i64, u8, u16, u32, u64, isize, usize, f32, f64};
[INFO] [stderr]   |                                       ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated module `std::u64`: all constants in this module replaced by associated constants on the type
[INFO] [stderr]  --> src/main.rs:1:44
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::{i8, i16, i32, i64, u8, u16, u32, u64, isize, usize, f32, f64};
[INFO] [stderr]   |                                            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated module `std::isize`: all constants in this module replaced by associated constants on the type
[INFO] [stderr]  --> src/main.rs:1:49
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::{i8, i16, i32, i64, u8, u16, u32, u64, isize, usize, f32, f64};
[INFO] [stderr]   |                                                 ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated module `std::usize`: all constants in this module replaced by associated constants on the type
[INFO] [stderr]  --> src/main.rs:1:56
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::{i8, i16, i32, i64, u8, u16, u32, u64, isize, usize, f32, f64};
[INFO] [stderr]   |                                                        ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated constant `std::i8::MAX`: replaced by the `MAX` associated constant on this type
[INFO] [stderr]   --> src/main.rs:12:31
[INFO] [stderr]    |
[INFO] [stderr] 12 |     println!("Max i8 {}", i8::MAX);
[INFO] [stderr]    |                               ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated constant `std::i8::MIN`: replaced by the `MIN` associated constant on this type
[INFO] [stderr]   --> src/main.rs:13:31
[INFO] [stderr]    |
[INFO] [stderr] 13 |     println!("Min i8 {}", i8::MIN);
[INFO] [stderr]    |                               ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated constant `std::i16::MAX`: replaced by the `MAX` associated constant on this type
[INFO] [stderr]   --> src/main.rs:14:33
[INFO] [stderr]    |
[INFO] [stderr] 14 |     println!("Max i16 {}", i16::MAX);
[INFO] [stderr]    |                                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated constant `std::i16::MIN`: replaced by the `MIN` associated constant on this type
[INFO] [stderr]   --> src/main.rs:15:33
[INFO] [stderr]    |
[INFO] [stderr] 15 |     println!("Min i16 {}", i16::MIN);
[INFO] [stderr]    |                                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated constant `std::i32::MAX`: replaced by the `MAX` associated constant on this type
[INFO] [stderr]   --> src/main.rs:16:33
[INFO] [stderr]    |
[INFO] [stderr] 16 |     println!("Max i32 {}", i32::MAX);
[INFO] [stderr]    |                                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated constant `std::i32::MIN`: replaced by the `MIN` associated constant on this type
[INFO] [stderr]   --> src/main.rs:17:33
[INFO] [stderr]    |
[INFO] [stderr] 17 |     println!("Min i32 {}", i32::MIN);
[INFO] [stderr]    |                                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated constant `std::i64::MAX`: replaced by the `MAX` associated constant on this type
[INFO] [stderr]   --> src/main.rs:18:33
[INFO] [stderr]    |
[INFO] [stderr] 18 |     println!("Max i64 {}", i64::MAX);
[INFO] [stderr]    |                                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated constant `std::i64::MIN`: replaced by the `MIN` associated constant on this type
[INFO] [stderr]   --> src/main.rs:19:33
[INFO] [stderr]    |
[INFO] [stderr] 19 |     println!("Min i64 {}", i64::MIN);
[INFO] [stderr]    |                                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated constant `std::isize::MAX`: replaced by the `MAX` associated constant on this type
[INFO] [stderr]   --> src/main.rs:20:37
[INFO] [stderr]    |
[INFO] [stderr] 20 |     println!("Max isize {}", isize::MAX);
[INFO] [stderr]    |                                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated constant `std::isize::MIN`: replaced by the `MIN` associated constant on this type
[INFO] [stderr]   --> src/main.rs:21:37
[INFO] [stderr]    |
[INFO] [stderr] 21 |     println!("Min isize {}", isize::MIN);
[INFO] [stderr]    |                                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated constant `std::usize::MAX`: replaced by the `MAX` associated constant on this type
[INFO] [stderr]   --> src/main.rs:22:37
[INFO] [stderr]    |
[INFO] [stderr] 22 |     println!("Max usize {}", usize::MAX);
[INFO] [stderr]    |                                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated constant `std::usize::MIN`: replaced by the `MIN` associated constant on this type
[INFO] [stderr]   --> src/main.rs:23:37
[INFO] [stderr]    |
[INFO] [stderr] 23 |     println!("Min usize {}", usize::MIN);
[INFO] [stderr]    |                                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated constant `std::f32::MAX`: replaced by the `MAX` associated constant on `f32`
[INFO] [stderr]   --> src/main.rs:24:33
[INFO] [stderr]    |
[INFO] [stderr] 24 |     println!("Max f32 {}", f32::MAX);
[INFO] [stderr]    |                                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated constant `std::f32::MIN`: replaced by the `MIN` associated constant on `f32`
[INFO] [stderr]   --> src/main.rs:25:33
[INFO] [stderr]    |
[INFO] [stderr] 25 |     println!("Min f32 {}", f32::MIN);
[INFO] [stderr]    |                                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated constant `std::f64::MAX`: replaced by the `MAX` associated constant on `f64`
[INFO] [stderr]   --> src/main.rs:26:33
[INFO] [stderr]    |
[INFO] [stderr] 26 |     println!("Max f64 {}", f64::MAX);
[INFO] [stderr]    |                                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated constant `std::f64::MIN`: replaced by the `MIN` associated constant on `f64`
[INFO] [stderr]   --> src/main.rs:27:33
[INFO] [stderr]    |
[INFO] [stderr] 27 |     println!("Min f64 {}", f64::MIN);
[INFO] [stderr]    |                                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:10:9
[INFO] [stderr]    |
[INFO] [stderr] 10 |     let mut age: i32 = 40;
[INFO] [stderr]    |         ----^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:52:9
[INFO] [stderr]    |
[INFO] [stderr] 52 |     let mut neg_4 = -4i32;
[INFO] [stderr]    |         ----^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `num`
[INFO] [stderr]  --> src/main.rs:8:9
[INFO] [stderr]   |
[INFO] [stderr] 8 |     let num = 10;
[INFO] [stderr]   |         ^^^ help: if this is intentional, prefix it with an underscore: `_num`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `f_name`
[INFO] [stderr]   --> src/main.rs:34:10
[INFO] [stderr]    |
[INFO] [stderr] 34 |     let (f_name, l_name) = ("Derek", "Banas");
[INFO] [stderr]    |          ^^^^^^ help: if this is intentional, prefix it with an underscore: `_f_name`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `l_name`
[INFO] [stderr]   --> src/main.rs:34:18
[INFO] [stderr]    |
[INFO] [stderr] 34 |     let (f_name, l_name) = ("Derek", "Banas");
[INFO] [stderr]    |                  ^^^^^^ help: if this is intentional, prefix it with an underscore: `_l_name`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `count`
[INFO] [stderr]    --> src/main.rs:116:9
[INFO] [stderr]     |
[INFO] [stderr] 116 |     let count = rand_string.chars().count();
[INFO] [stderr]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_count`
[INFO] [stderr] 
[INFO] [stderr] warning: `rust_tut` (bin "rust_tut" test) generated 37 warnings (run `cargo fix --bin "rust_tut" -p rust_tut --tests` to apply 11 suggestions)
[INFO] [stderr]     Finished `release` profile [optimized] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/release/build/rust_tut/938daa0a8b9b292e/out/rust_tut-938daa0a8b9b292e)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "287e05c7d8850ac65a770472851e7c82d1ae6107ad3368f1c4fa5c38eb241468", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "287e05c7d8850ac65a770472851e7c82d1ae6107ad3368f1c4fa5c38eb241468", kill_on_drop: false }`
[INFO] [stdout] 287e05c7d8850ac65a770472851e7c82d1ae6107ad3368f1c4fa5c38eb241468
