[INFO] cloning repository https://github.com/huynhdangnguyen/Rust-Bootcamp-2023-Ex-1
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/huynhdangnguyen/Rust-Bootcamp-2023-Ex-1" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhuynhdangnguyen%2FRust-Bootcamp-2023-Ex-1", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhuynhdangnguyen%2FRust-Bootcamp-2023-Ex-1'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0307feaeb8c4e45be61e94b6c51fddfe994f94fa
[INFO] linting huynhdangnguyen/Rust-Bootcamp-2023-Ex-1 against nightly for clippy-nonminimal_bool-denied
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhuynhdangnguyen%2FRust-Bootcamp-2023-Ex-1" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/huynhdangnguyen/Rust-Bootcamp-2023-Ex-1
[INFO] removed 0 missing tests
[INFO] finished tweaking git repo https://github.com/huynhdangnguyen/Rust-Bootcamp-2023-Ex-1
[INFO] tweaked toml for git repo https://github.com/huynhdangnguyen/Rust-Bootcamp-2023-Ex-1 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/huynhdangnguyen/Rust-Bootcamp-2023-Ex-1 on toolchain nightly
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+nightly" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/huynhdangnguyen/Rust-Bootcamp-2023-Ex-1 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" "+nightly" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+nightly" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2662ed63715daa75127fb2699817622a6bad4f2a98ecbd1151540f8f678b3cbd
[INFO] running `Command { std: "docker" "start" "-a" "2662ed63715daa75127fb2699817622a6bad4f2a98ecbd1151540f8f678b3cbd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2662ed63715daa75127fb2699817622a6bad4f2a98ecbd1151540f8f678b3cbd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2662ed63715daa75127fb2699817622a6bad4f2a98ecbd1151540f8f678b3cbd", kill_on_drop: false }`
[INFO] [stdout] 2662ed63715daa75127fb2699817622a6bad4f2a98ecbd1151540f8f678b3cbd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+nightly" "clippy" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] be9c93270faebd1f0ad3a2c143887d9d9b68335609e04da27ea1cad1bfddee10
[INFO] running `Command { std: "docker" "start" "-a" "be9c93270faebd1f0ad3a2c143887d9d9b68335609e04da27ea1cad1bfddee10", kill_on_drop: false }`
[INFO] [stderr]     Checking basic-of-rust v0.1.0 (/opt/rustwide/workdir/exercises/basic-of-rust)
[INFO] [stderr]     Checking Rust-Bootcamp-2023 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: length comparison to zero
[INFO] [stdout]   --> exercises/basic-of-rust/src/functions.rs:29:8
[INFO] [stdout]    |
[INFO] [stdout] 29 |     if numbers.len() == 0{
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `numbers.is_empty()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stdout]    = note: `#[warn(clippy::len_zero)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `core::num`
[INFO] [stdout]  --> exercises/basic-of-rust/src/conditions.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use core::num;
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `core::num`
[INFO] [stdout]  --> exercises/basic-of-rust/src/conditions.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use core::num;
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `bigger` is never used
[INFO] [stdout]  --> exercises/basic-of-rust/src/conditions.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub fn bigger(a: i32, b: i32) -> i32 {
[INFO] [stdout]   |        ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `check_number` is never used
[INFO] [stdout]   --> exercises/basic-of-rust/src/conditions.rs:19:4
[INFO] [stdout]    |
[INFO] [stdout] 19 | fn check_number(number: i32) -> &'static str {
[INFO] [stdout]    |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `foo_if_fizz` is never used
[INFO] [stdout]   --> exercises/basic-of-rust/src/conditions.rs:36:8
[INFO] [stdout]    |
[INFO] [stdout] 36 | pub fn foo_if_fizz(fizzish: &str) -> &str {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `is_leap_year` is never used
[INFO] [stdout]   --> exercises/basic-of-rust/src/conditions.rs:52:4
[INFO] [stdout]    |
[INFO] [stdout] 52 | fn is_leap_year(year: i32) -> bool {
[INFO] [stdout]    |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `factorial` is never used
[INFO] [stdout]   --> exercises/basic-of-rust/src/conditions.rs:59:4
[INFO] [stdout]    |
[INFO] [stdout] 59 | fn factorial(n: u32) -> u32 {
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `is_prime` is never used
[INFO] [stdout]   --> exercises/basic-of-rust/src/conditions.rs:71:4
[INFO] [stdout]    |
[INFO] [stdout] 71 | fn is_prime(n: u32) -> bool {
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `exercise2` is never used
[INFO] [stdout]  --> exercises/basic-of-rust/src/strings.rs:9:4
[INFO] [stdout]   |
[INFO] [stdout] 9 | fn exercise2() -> String {
[INFO] [stdout]   |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `exercise3` is never used
[INFO] [stdout]   --> exercises/basic-of-rust/src/strings.rs:18:4
[INFO] [stdout]    |
[INFO] [stdout] 18 | fn exercise3() -> String {
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `reverse_string` is never used
[INFO] [stdout]   --> exercises/basic-of-rust/src/strings.rs:28:4
[INFO] [stdout]    |
[INFO] [stdout] 28 | fn reverse_string(input: &str) -> String {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `is_palindrome` is never used
[INFO] [stdout]   --> exercises/basic-of-rust/src/strings.rs:35:4
[INFO] [stdout]    |
[INFO] [stdout] 35 | fn is_palindrome(word: &str) -> bool {
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `count_char_occurrences` is never used
[INFO] [stdout]   --> exercises/basic-of-rust/src/strings.rs:41:4
[INFO] [stdout]    |
[INFO] [stdout] 41 | fn count_char_occurrences(string: &str, ch: char) -> usize {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `sum` is never used
[INFO] [stdout]  --> exercises/basic-of-rust/src/functions.rs:3:4
[INFO] [stdout]   |
[INFO] [stdout] 3 | fn sum(x: i32, y: i32) -> i32 {
[INFO] [stdout]   |    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `sum_one_to_n` is never used
[INFO] [stdout]   --> exercises/basic-of-rust/src/functions.rs:11:8
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub fn sum_one_to_n(n: u32) -> u32 {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `calculate_average` is never used
[INFO] [stdout]   --> exercises/basic-of-rust/src/functions.rs:28:4
[INFO] [stdout]    |
[INFO] [stdout] 28 | fn calculate_average(numbers: &[f64]) -> f64 {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `sum_even_numbers` is never used
[INFO] [stdout]   --> exercises/basic-of-rust/src/functions.rs:42:4
[INFO] [stdout]    |
[INFO] [stdout] 42 | fn sum_even_numbers(numbers: &[i32]) -> i32 {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]   --> exercises/basic-of-rust/src/conditions.rs:23:17
[INFO] [stdout]    |
[INFO] [stdout] 23 |                 return "Positive"
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stdout]    = note: `#[warn(clippy::needless_return)]` on by default
[INFO] [stdout] help: remove `return`
[INFO] [stdout]    |
[INFO] [stdout] 23 -                 return "Positive"
[INFO] [stdout] 23 +                 "Positive"
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]   --> exercises/basic-of-rust/src/conditions.rs:26:17
[INFO] [stdout]    |
[INFO] [stdout] 26 |                 return "Zero";
[INFO] [stdout]    |                 ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stdout] help: remove `return`
[INFO] [stdout]    |
[INFO] [stdout] 26 -                 return "Zero";
[INFO] [stdout] 26 +                 "Zero"
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]   --> exercises/basic-of-rust/src/conditions.rs:28:18
[INFO] [stdout]    |
[INFO] [stdout] 28 |         false => return "Negative",
[INFO] [stdout]    |                  ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stdout] help: remove `return`
[INFO] [stdout]    |
[INFO] [stdout] 28 -         false => return "Negative",
[INFO] [stdout] 28 +         false => "Negative",
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this boolean expression can be simplified
[INFO] [stdout]   --> exercises/basic-of-rust/src/conditions.rs:53:5
[INFO] [stdout]    |
[INFO] [stdout] 53 |     year % 4 == 0 && (year % 100 != 0 || (year % 100 == 0 && year % 400 == 0))
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#nonminimal_bool
[INFO] [stdout]    = note: `#[warn(clippy::nonminimal_bool)]` on by default
[INFO] [stdout] help: try
[INFO] [stdout]    |
[INFO] [stdout] 53 -     year % 4 == 0 && (year % 100 != 0 || (year % 100 == 0 && year % 400 == 0))
[INFO] [stdout] 53 +     !(year % 4 != 0 || year % 100 == 0 && year % 400 != 0)
[INFO] [stdout]    |
[INFO] [stdout] 53 -     year % 4 == 0 && (year % 100 != 0 || (year % 100 == 0 && year % 400 == 0))
[INFO] [stdout] 53 +     (year % 400 == 0 || year % 100 != 0) && year % 4 == 0
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this boolean expression can be simplified
[INFO] [stdout]   --> exercises/basic-of-rust/src/conditions.rs:53:22
[INFO] [stdout]    |
[INFO] [stdout] 53 |     year % 4 == 0 && (year % 100 != 0 || (year % 100 == 0 && year % 400 == 0))
[INFO] [stdout]    |                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#nonminimal_bool
[INFO] [stdout] help: try
[INFO] [stdout]    |
[INFO] [stdout] 53 -     year % 4 == 0 && (year % 100 != 0 || (year % 100 == 0 && year % 400 == 0))
[INFO] [stdout] 53 +     year % 4 == 0 && !(year % 100 == 0 && year % 400 != 0)
[INFO] [stdout]    |
[INFO] [stdout] 53 -     year % 4 == 0 && (year % 100 != 0 || (year % 100 == 0 && year % 400 == 0))
[INFO] [stdout] 53 +     year % 4 == 0 && year % 100 != 0 || year % 400 == 0
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: manual implementation of `.is_multiple_of()`
[INFO] [stdout]   --> exercises/basic-of-rust/src/conditions.rs:76:12
[INFO] [stdout]    |
[INFO] [stdout] 76 |         if n % a == 0 {
[INFO] [stdout]    |            ^^^^^^^^^^ help: replace with: `n.is_multiple_of(a)`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#manual_is_multiple_of
[INFO] [stdout]    = note: `#[warn(clippy::manual_is_multiple_of)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: returning the result of a `let` binding from a block
[INFO] [stdout]   --> exercises/basic-of-rust/src/strings.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 21 |     let s3 = s1 + &s2;
[INFO] [stdout]    |     ------------------ unnecessary `let` binding
[INFO] [stdout] 22 |     s3
[INFO] [stdout]    |     ^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#let_and_return
[INFO] [stdout]    = note: `#[warn(clippy::let_and_return)]` on by default
[INFO] [stdout] help: return the expression directly
[INFO] [stdout]    |
[INFO] [stdout] 21 ~     
[INFO] [stdout] 22 ~     s1 + &s2
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]   --> exercises/basic-of-rust/src/strings.rs:36:5
[INFO] [stdout]    |
[INFO] [stdout] 36 |     return word.to_lowercase() == reverse_string(word).to_lowercase().to_string();
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stdout] help: remove `return`
[INFO] [stdout]    |
[INFO] [stdout] 36 -     return word.to_lowercase() == reverse_string(word).to_lowercase().to_string();
[INFO] [stdout] 36 +     word.to_lowercase() == reverse_string(word).to_lowercase().to_string()
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this creates an owned instance just for comparison
[INFO] [stdout]   --> exercises/basic-of-rust/src/strings.rs:36:35
[INFO] [stdout]    |
[INFO] [stdout] 36 |     return word.to_lowercase() == reverse_string(word).to_lowercase().to_string();
[INFO] [stdout]    |                                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `reverse_string(word).to_lowercase()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cmp_owned
[INFO] [stdout]    = note: `#[warn(clippy::cmp_owned)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]   --> exercises/basic-of-rust/src/strings.rs:42:5
[INFO] [stdout]    |
[INFO] [stdout] 42 |     return string.matches(&ch.to_string()).count();
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stdout] help: remove `return`
[INFO] [stdout]    |
[INFO] [stdout] 42 -     return string.matches(&ch.to_string()).count();
[INFO] [stdout] 42 +     string.matches(&ch.to_string()).count()
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: length comparison to zero
[INFO] [stdout]   --> exercises/basic-of-rust/src/functions.rs:29:8
[INFO] [stdout]    |
[INFO] [stdout] 29 |     if numbers.len() == 0{
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `numbers.is_empty()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stdout]    = note: `#[warn(clippy::len_zero)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: returning the result of a `let` binding from a block
[INFO] [stdout]   --> exercises/basic-of-rust/src/strings.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 21 |     let s3 = s1 + &s2;
[INFO] [stdout]    |     ------------------ unnecessary `let` binding
[INFO] [stdout] 22 |     s3
[INFO] [stdout]    |     ^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#let_and_return
[INFO] [stdout]    = note: `#[warn(clippy::let_and_return)]` on by default
[INFO] [stdout] help: return the expression directly
[INFO] [stdout]    |
[INFO] [stdout] 21 ~     
[INFO] [stdout] 22 ~     s1 + &s2
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `core::num`
[INFO] [stdout]  --> exercises/basic-of-rust/src/conditions.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use core::num;
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]   --> exercises/basic-of-rust/src/strings.rs:36:5
[INFO] [stdout]    |
[INFO] [stdout] 36 |     return word.to_lowercase() == reverse_string(word).to_lowercase().to_string();
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stdout]    = note: `#[warn(clippy::needless_return)]` on by default
[INFO] [stdout] help: remove `return`
[INFO] [stdout]    |
[INFO] [stdout] 36 -     return word.to_lowercase() == reverse_string(word).to_lowercase().to_string();
[INFO] [stdout] 36 +     word.to_lowercase() == reverse_string(word).to_lowercase().to_string()
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this creates an owned instance just for comparison
[INFO] [stdout]   --> exercises/basic-of-rust/src/strings.rs:36:35
[INFO] [stdout]    |
[INFO] [stdout] 36 |     return word.to_lowercase() == reverse_string(word).to_lowercase().to_string();
[INFO] [stdout]    |                                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `reverse_string(word).to_lowercase()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cmp_owned
[INFO] [stdout]    = note: `#[warn(clippy::cmp_owned)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]   --> exercises/basic-of-rust/src/strings.rs:42:5
[INFO] [stdout]    |
[INFO] [stdout] 42 |     return string.matches(&ch.to_string()).count();
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stdout] help: remove `return`
[INFO] [stdout]    |
[INFO] [stdout] 42 -     return string.matches(&ch.to_string()).count();
[INFO] [stdout] 42 +     string.matches(&ch.to_string()).count()
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: used `assert_eq!` with a literal bool
[INFO] [stdout]   --> exercises/basic-of-rust/src/strings.rs:79:9
[INFO] [stdout]    |
[INFO] [stdout] 79 |         assert_eq!(is_palindrome("level"), true);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#bool_assert_comparison
[INFO] [stdout]    = note: `#[warn(clippy::bool_assert_comparison)]` on by default
[INFO] [stdout] help: replace it with `assert!(..)`
[INFO] [stdout]    |
[INFO] [stdout] 79 -         assert_eq!(is_palindrome("level"), true);
[INFO] [stdout] 79 +         assert!(is_palindrome("level"));
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: used `assert_eq!` with a literal bool
[INFO] [stdout]   --> exercises/basic-of-rust/src/strings.rs:80:9
[INFO] [stdout]    |
[INFO] [stdout] 80 |         assert_eq!(is_palindrome("deed"), true);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#bool_assert_comparison
[INFO] [stdout] help: replace it with `assert!(..)`
[INFO] [stdout]    |
[INFO] [stdout] 80 -         assert_eq!(is_palindrome("deed"), true);
[INFO] [stdout] 80 +         assert!(is_palindrome("deed"));
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: used `assert_eq!` with a literal bool
[INFO] [stdout]   --> exercises/basic-of-rust/src/strings.rs:81:9
[INFO] [stdout]    |
[INFO] [stdout] 81 |         assert_eq!(is_palindrome("Rotor"), true);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#bool_assert_comparison
[INFO] [stdout] help: replace it with `assert!(..)`
[INFO] [stdout]    |
[INFO] [stdout] 81 -         assert_eq!(is_palindrome("Rotor"), true);
[INFO] [stdout] 81 +         assert!(is_palindrome("Rotor"));
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: used `assert_eq!` with a literal bool
[INFO] [stdout]   --> exercises/basic-of-rust/src/strings.rs:86:9
[INFO] [stdout]    |
[INFO] [stdout] 86 |         assert_eq!(is_palindrome("hello"), false);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#bool_assert_comparison
[INFO] [stdout] help: replace it with `assert!(..)`
[INFO] [stdout]    |
[INFO] [stdout] 86 -         assert_eq!(is_palindrome("hello"), false);
[INFO] [stdout] 86 +         assert!(!is_palindrome("hello"));
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: used `assert_eq!` with a literal bool
[INFO] [stdout]   --> exercises/basic-of-rust/src/strings.rs:87:9
[INFO] [stdout]    |
[INFO] [stdout] 87 |         assert_eq!(is_palindrome("world"), false);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#bool_assert_comparison
[INFO] [stdout] help: replace it with `assert!(..)`
[INFO] [stdout]    |
[INFO] [stdout] 87 -         assert_eq!(is_palindrome("world"), false);
[INFO] [stdout] 87 +         assert!(!is_palindrome("world"));
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]   --> exercises/basic-of-rust/src/conditions.rs:23:17
[INFO] [stdout]    |
[INFO] [stdout] 23 |                 return "Positive"
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stdout]    = note: `#[warn(clippy::needless_return)]` on by default
[INFO] [stdout] help: remove `return`
[INFO] [stdout]    |
[INFO] [stdout] 23 -                 return "Positive"
[INFO] [stdout] 23 +                 "Positive"
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]   --> exercises/basic-of-rust/src/conditions.rs:26:17
[INFO] [stdout]    |
[INFO] [stdout] 26 |                 return "Zero";
[INFO] [stdout]    |                 ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stdout] help: remove `return`
[INFO] [stdout]    |
[INFO] [stdout] 26 -                 return "Zero";
[INFO] [stdout] 26 +                 "Zero"
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]   --> exercises/basic-of-rust/src/conditions.rs:28:18
[INFO] [stdout]    |
[INFO] [stdout] 28 |         false => return "Negative",
[INFO] [stdout]    |                  ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stdout] help: remove `return`
[INFO] [stdout]    |
[INFO] [stdout] 28 -         false => return "Negative",
[INFO] [stdout] 28 +         false => "Negative",
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this boolean expression can be simplified
[INFO] [stdout]   --> exercises/basic-of-rust/src/conditions.rs:53:5
[INFO] [stdout]    |
[INFO] [stdout] 53 |     year % 4 == 0 && (year % 100 != 0 || (year % 100 == 0 && year % 400 == 0))
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#nonminimal_bool
[INFO] [stdout]    = note: `#[warn(clippy::nonminimal_bool)]` on by default
[INFO] [stdout] help: try
[INFO] [stdout]    |
[INFO] [stdout] 53 -     year % 4 == 0 && (year % 100 != 0 || (year % 100 == 0 && year % 400 == 0))
[INFO] [stdout] 53 +     !(year % 4 != 0 || year % 100 == 0 && year % 400 != 0)
[INFO] [stdout]    |
[INFO] [stdout] 53 -     year % 4 == 0 && (year % 100 != 0 || (year % 100 == 0 && year % 400 == 0))
[INFO] [stdout] 53 +     (year % 400 == 0 || year % 100 != 0) && year % 4 == 0
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this boolean expression can be simplified
[INFO] [stdout]   --> exercises/basic-of-rust/src/conditions.rs:53:22
[INFO] [stdout]    |
[INFO] [stdout] 53 |     year % 4 == 0 && (year % 100 != 0 || (year % 100 == 0 && year % 400 == 0))
[INFO] [stdout]    |                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#nonminimal_bool
[INFO] [stdout] help: try
[INFO] [stdout]    |
[INFO] [stdout] 53 -     year % 4 == 0 && (year % 100 != 0 || (year % 100 == 0 && year % 400 == 0))
[INFO] [stdout] 53 +     year % 4 == 0 && !(year % 100 == 0 && year % 400 != 0)
[INFO] [stdout]    |
[INFO] [stdout] 53 -     year % 4 == 0 && (year % 100 != 0 || (year % 100 == 0 && year % 400 == 0))
[INFO] [stdout] 53 +     year % 4 == 0 && year % 100 != 0 || year % 400 == 0
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: manual implementation of `.is_multiple_of()`
[INFO] [stdout]   --> exercises/basic-of-rust/src/conditions.rs:76:12
[INFO] [stdout]    |
[INFO] [stdout] 76 |         if n % a == 0 {
[INFO] [stdout]    |            ^^^^^^^^^^ help: replace with: `n.is_multiple_of(a)`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#manual_is_multiple_of
[INFO] [stdout]    = note: `#[warn(clippy::manual_is_multiple_of)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: used `assert_eq!` with a literal bool
[INFO] [stdout]    --> exercises/basic-of-rust/src/conditions.rs:139:9
[INFO] [stdout]     |
[INFO] [stdout] 139 |         assert_eq!(is_leap_year(2020), true);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#bool_assert_comparison
[INFO] [stdout]     = note: `#[warn(clippy::bool_assert_comparison)]` on by default
[INFO] [stdout] help: replace it with `assert!(..)`
[INFO] [stdout]     |
[INFO] [stdout] 139 -         assert_eq!(is_leap_year(2020), true);
[INFO] [stdout] 139 +         assert!(is_leap_year(2020));
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: used `assert_eq!` with a literal bool
[INFO] [stdout]    --> exercises/basic-of-rust/src/conditions.rs:140:9
[INFO] [stdout]     |
[INFO] [stdout] 140 |         assert_eq!(is_leap_year(2000), true);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#bool_assert_comparison
[INFO] [stdout] help: replace it with `assert!(..)`
[INFO] [stdout]     |
[INFO] [stdout] 140 -         assert_eq!(is_leap_year(2000), true);
[INFO] [stdout] 140 +         assert!(is_leap_year(2000));
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: used `assert_eq!` with a literal bool
[INFO] [stdout]    --> exercises/basic-of-rust/src/conditions.rs:141:9
[INFO] [stdout]     |
[INFO] [stdout] 141 |         assert_eq!(is_leap_year(1600), true);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#bool_assert_comparison
[INFO] [stdout] help: replace it with `assert!(..)`
[INFO] [stdout]     |
[INFO] [stdout] 141 -         assert_eq!(is_leap_year(1600), true);
[INFO] [stdout] 141 +         assert!(is_leap_year(1600));
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: used `assert_eq!` with a literal bool
[INFO] [stdout]    --> exercises/basic-of-rust/src/conditions.rs:147:9
[INFO] [stdout]     |
[INFO] [stdout] 147 |         assert_eq!(is_leap_year(2021), false);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#bool_assert_comparison
[INFO] [stdout] help: replace it with `assert!(..)`
[INFO] [stdout]     |
[INFO] [stdout] 147 -         assert_eq!(is_leap_year(2021), false);
[INFO] [stdout] 147 +         assert!(!is_leap_year(2021));
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: used `assert_eq!` with a literal bool
[INFO] [stdout]    --> exercises/basic-of-rust/src/conditions.rs:148:9
[INFO] [stdout]     |
[INFO] [stdout] 148 |         assert_eq!(is_leap_year(1900), false);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#bool_assert_comparison
[INFO] [stdout] help: replace it with `assert!(..)`
[INFO] [stdout]     |
[INFO] [stdout] 148 -         assert_eq!(is_leap_year(1900), false);
[INFO] [stdout] 148 +         assert!(!is_leap_year(1900));
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: used `assert_eq!` with a literal bool
[INFO] [stdout]    --> exercises/basic-of-rust/src/conditions.rs:149:9
[INFO] [stdout]     |
[INFO] [stdout] 149 |         assert_eq!(is_leap_year(1800), false);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#bool_assert_comparison
[INFO] [stdout] help: replace it with `assert!(..)`
[INFO] [stdout]     |
[INFO] [stdout] 149 -         assert_eq!(is_leap_year(1800), false);
[INFO] [stdout] 149 +         assert!(!is_leap_year(1800));
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: used `assert_eq!` with a literal bool
[INFO] [stdout]    --> exercises/basic-of-rust/src/conditions.rs:164:9
[INFO] [stdout]     |
[INFO] [stdout] 164 |         assert_eq!(is_prime(2), true);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#bool_assert_comparison
[INFO] [stdout] help: replace it with `assert!(..)`
[INFO] [stdout]     |
[INFO] [stdout] 164 -         assert_eq!(is_prime(2), true);
[INFO] [stdout] 164 +         assert!(is_prime(2));
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: used `assert_eq!` with a literal bool
[INFO] [stdout]    --> exercises/basic-of-rust/src/conditions.rs:165:9
[INFO] [stdout]     |
[INFO] [stdout] 165 |         assert_eq!(is_prime(7), true);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#bool_assert_comparison
[INFO] [stdout] help: replace it with `assert!(..)`
[INFO] [stdout]     |
[INFO] [stdout] 165 -         assert_eq!(is_prime(7), true);
[INFO] [stdout] 165 +         assert!(is_prime(7));
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: used `assert_eq!` with a literal bool
[INFO] [stdout]    --> exercises/basic-of-rust/src/conditions.rs:166:9
[INFO] [stdout]     |
[INFO] [stdout] 166 |         assert_eq!(is_prime(13), true);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#bool_assert_comparison
[INFO] [stdout] help: replace it with `assert!(..)`
[INFO] [stdout]     |
[INFO] [stdout] 166 -         assert_eq!(is_prime(13), true);
[INFO] [stdout] 166 +         assert!(is_prime(13));
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: used `assert_eq!` with a literal bool
[INFO] [stdout]    --> exercises/basic-of-rust/src/conditions.rs:167:9
[INFO] [stdout]     |
[INFO] [stdout] 167 |         assert_eq!(is_prime(19), true);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#bool_assert_comparison
[INFO] [stdout] help: replace it with `assert!(..)`
[INFO] [stdout]     |
[INFO] [stdout] 167 -         assert_eq!(is_prime(19), true);
[INFO] [stdout] 167 +         assert!(is_prime(19));
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: used `assert_eq!` with a literal bool
[INFO] [stdout]    --> exercises/basic-of-rust/src/conditions.rs:172:9
[INFO] [stdout]     |
[INFO] [stdout] 172 |         assert_eq!(is_prime(1), false);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#bool_assert_comparison
[INFO] [stdout] help: replace it with `assert!(..)`
[INFO] [stdout]     |
[INFO] [stdout] 172 -         assert_eq!(is_prime(1), false);
[INFO] [stdout] 172 +         assert!(!is_prime(1));
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: used `assert_eq!` with a literal bool
[INFO] [stdout]    --> exercises/basic-of-rust/src/conditions.rs:173:9
[INFO] [stdout]     |
[INFO] [stdout] 173 |         assert_eq!(is_prime(4), false);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#bool_assert_comparison
[INFO] [stdout] help: replace it with `assert!(..)`
[INFO] [stdout]     |
[INFO] [stdout] 173 -         assert_eq!(is_prime(4), false);
[INFO] [stdout] 173 +         assert!(!is_prime(4));
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: used `assert_eq!` with a literal bool
[INFO] [stdout]    --> exercises/basic-of-rust/src/conditions.rs:174:9
[INFO] [stdout]     |
[INFO] [stdout] 174 |         assert_eq!(is_prime(10), false);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#bool_assert_comparison
[INFO] [stdout] help: replace it with `assert!(..)`
[INFO] [stdout]     |
[INFO] [stdout] 174 -         assert_eq!(is_prime(10), false);
[INFO] [stdout] 174 +         assert!(!is_prime(10));
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: used `assert_eq!` with a literal bool
[INFO] [stdout]    --> exercises/basic-of-rust/src/conditions.rs:175:9
[INFO] [stdout]     |
[INFO] [stdout] 175 |         assert_eq!(is_prime(15), false);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#bool_assert_comparison
[INFO] [stdout] help: replace it with `assert!(..)`
[INFO] [stdout]     |
[INFO] [stdout] 175 -         assert_eq!(is_prime(15), false);
[INFO] [stdout] 175 +         assert!(!is_prime(15));
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: returning the result of a `let` binding from a block
[INFO] [stdout]   --> exercises/basic-of-rust/src/strings.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 21 |     let s3 = s1 + &s2;
[INFO] [stdout]    |     ------------------ unnecessary `let` binding
[INFO] [stdout] 22 |     s3
[INFO] [stdout]    |     ^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#let_and_return
[INFO] [stdout]    = note: `#[warn(clippy::let_and_return)]` on by default
[INFO] [stdout] help: return the expression directly
[INFO] [stdout]    |
[INFO] [stdout] 21 ~     
[INFO] [stdout] 22 ~     s1 + &s2
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]   --> exercises/basic-of-rust/src/strings.rs:36:5
[INFO] [stdout]    |
[INFO] [stdout] 36 |     return word.to_lowercase() == reverse_string(word).to_lowercase().to_string();
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stdout] help: remove `return`
[INFO] [stdout]    |
[INFO] [stdout] 36 -     return word.to_lowercase() == reverse_string(word).to_lowercase().to_string();
[INFO] [stdout] 36 +     word.to_lowercase() == reverse_string(word).to_lowercase().to_string()
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this creates an owned instance just for comparison
[INFO] [stdout]   --> exercises/basic-of-rust/src/strings.rs:36:35
[INFO] [stdout]    |
[INFO] [stdout] 36 |     return word.to_lowercase() == reverse_string(word).to_lowercase().to_string();
[INFO] [stdout]    |                                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `reverse_string(word).to_lowercase()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cmp_owned
[INFO] [stdout]    = note: `#[warn(clippy::cmp_owned)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]   --> exercises/basic-of-rust/src/strings.rs:42:5
[INFO] [stdout]    |
[INFO] [stdout] 42 |     return string.matches(&ch.to_string()).count();
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stdout] help: remove `return`
[INFO] [stdout]    |
[INFO] [stdout] 42 -     return string.matches(&ch.to_string()).count();
[INFO] [stdout] 42 +     string.matches(&ch.to_string()).count()
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: used `assert_eq!` with a literal bool
[INFO] [stdout]   --> exercises/basic-of-rust/src/strings.rs:79:9
[INFO] [stdout]    |
[INFO] [stdout] 79 |         assert_eq!(is_palindrome("level"), true);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#bool_assert_comparison
[INFO] [stdout] help: replace it with `assert!(..)`
[INFO] [stdout]    |
[INFO] [stdout] 79 -         assert_eq!(is_palindrome("level"), true);
[INFO] [stdout] 79 +         assert!(is_palindrome("level"));
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: used `assert_eq!` with a literal bool
[INFO] [stdout]   --> exercises/basic-of-rust/src/strings.rs:80:9
[INFO] [stdout]    |
[INFO] [stdout] 80 |         assert_eq!(is_palindrome("deed"), true);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#bool_assert_comparison
[INFO] [stdout] help: replace it with `assert!(..)`
[INFO] [stdout]    |
[INFO] [stdout] 80 -         assert_eq!(is_palindrome("deed"), true);
[INFO] [stdout] 80 +         assert!(is_palindrome("deed"));
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: used `assert_eq!` with a literal bool
[INFO] [stdout]   --> exercises/basic-of-rust/src/strings.rs:81:9
[INFO] [stdout]    |
[INFO] [stdout] 81 |         assert_eq!(is_palindrome("Rotor"), true);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#bool_assert_comparison
[INFO] [stdout] help: replace it with `assert!(..)`
[INFO] [stdout]    |
[INFO] [stdout] 81 -         assert_eq!(is_palindrome("Rotor"), true);
[INFO] [stdout] 81 +         assert!(is_palindrome("Rotor"));
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: used `assert_eq!` with a literal bool
[INFO] [stdout]   --> exercises/basic-of-rust/src/strings.rs:86:9
[INFO] [stdout]    |
[INFO] [stdout] 86 |         assert_eq!(is_palindrome("hello"), false);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#bool_assert_comparison
[INFO] [stdout] help: replace it with `assert!(..)`
[INFO] [stdout]    |
[INFO] [stdout] 86 -         assert_eq!(is_palindrome("hello"), false);
[INFO] [stdout] 86 +         assert!(!is_palindrome("hello"));
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: used `assert_eq!` with a literal bool
[INFO] [stdout]   --> exercises/basic-of-rust/src/strings.rs:87:9
[INFO] [stdout]    |
[INFO] [stdout] 87 |         assert_eq!(is_palindrome("world"), false);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#bool_assert_comparison
[INFO] [stdout] help: replace it with `assert!(..)`
[INFO] [stdout]    |
[INFO] [stdout] 87 -         assert_eq!(is_palindrome("world"), false);
[INFO] [stdout] 87 +         assert!(!is_palindrome("world"));
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: length comparison to zero
[INFO] [stdout]   --> exercises/basic-of-rust/src/functions.rs:29:8
[INFO] [stdout]    |
[INFO] [stdout] 29 |     if numbers.len() == 0{
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `numbers.is_empty()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stdout]    = note: `#[warn(clippy::len_zero)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]   --> exercises/basic-of-rust/src/conditions.rs:23:17
[INFO] [stdout]    |
[INFO] [stdout] 23 |                 return "Positive"
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stdout]    = note: `#[warn(clippy::needless_return)]` on by default
[INFO] [stdout] help: remove `return`
[INFO] [stdout]    |
[INFO] [stdout] 23 -                 return "Positive"
[INFO] [stdout] 23 +                 "Positive"
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]   --> exercises/basic-of-rust/src/conditions.rs:26:17
[INFO] [stdout]    |
[INFO] [stdout] 26 |                 return "Zero";
[INFO] [stdout]    |                 ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stdout] help: remove `return`
[INFO] [stdout]    |
[INFO] [stdout] 26 -                 return "Zero";
[INFO] [stdout] 26 +                 "Zero"
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]   --> exercises/basic-of-rust/src/conditions.rs:28:18
[INFO] [stdout]    |
[INFO] [stdout] 28 |         false => return "Negative",
[INFO] [stdout]    |                  ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stdout] help: remove `return`
[INFO] [stdout]    |
[INFO] [stdout] 28 -         false => return "Negative",
[INFO] [stdout] 28 +         false => "Negative",
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this boolean expression can be simplified
[INFO] [stdout]   --> exercises/basic-of-rust/src/conditions.rs:53:5
[INFO] [stdout]    |
[INFO] [stdout] 53 |     year % 4 == 0 && (year % 100 != 0 || (year % 100 == 0 && year % 400 == 0))
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#nonminimal_bool
[INFO] [stdout]    = note: `#[warn(clippy::nonminimal_bool)]` on by default
[INFO] [stdout] help: try
[INFO] [stdout]    |
[INFO] [stdout] 53 -     year % 4 == 0 && (year % 100 != 0 || (year % 100 == 0 && year % 400 == 0))
[INFO] [stdout] 53 +     !(year % 4 != 0 || year % 100 == 0 && year % 400 != 0)
[INFO] [stdout]    |
[INFO] [stdout] 53 -     year % 4 == 0 && (year % 100 != 0 || (year % 100 == 0 && year % 400 == 0))
[INFO] [stdout] 53 +     (year % 400 == 0 || year % 100 != 0) && year % 4 == 0
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this boolean expression can be simplified
[INFO] [stdout]   --> exercises/basic-of-rust/src/conditions.rs:53:22
[INFO] [stdout]    |
[INFO] [stdout] 53 |     year % 4 == 0 && (year % 100 != 0 || (year % 100 == 0 && year % 400 == 0))
[INFO] [stdout]    |                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#nonminimal_bool
[INFO] [stdout] help: try
[INFO] [stdout]    |
[INFO] [stdout] 53 -     year % 4 == 0 && (year % 100 != 0 || (year % 100 == 0 && year % 400 == 0))
[INFO] [stdout] 53 +     year % 4 == 0 && !(year % 100 == 0 && year % 400 != 0)
[INFO] [stdout]    |
[INFO] [stdout] 53 -     year % 4 == 0 && (year % 100 != 0 || (year % 100 == 0 && year % 400 == 0))
[INFO] [stdout] 53 +     year % 4 == 0 && year % 100 != 0 || year % 400 == 0
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: manual implementation of `.is_multiple_of()`
[INFO] [stdout]   --> exercises/basic-of-rust/src/conditions.rs:76:12
[INFO] [stdout]    |
[INFO] [stdout] 76 |         if n % a == 0 {
[INFO] [stdout]    |            ^^^^^^^^^^ help: replace with: `n.is_multiple_of(a)`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#manual_is_multiple_of
[INFO] [stdout]    = note: `#[warn(clippy::manual_is_multiple_of)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: used `assert_eq!` with a literal bool
[INFO] [stdout]    --> exercises/basic-of-rust/src/conditions.rs:139:9
[INFO] [stdout]     |
[INFO] [stdout] 139 |         assert_eq!(is_leap_year(2020), true);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#bool_assert_comparison
[INFO] [stdout]     = note: `#[warn(clippy::bool_assert_comparison)]` on by default
[INFO] [stdout] help: replace it with `assert!(..)`
[INFO] [stdout]     |
[INFO] [stdout] 139 -         assert_eq!(is_leap_year(2020), true);
[INFO] [stdout] 139 +         assert!(is_leap_year(2020));
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: used `assert_eq!` with a literal bool
[INFO] [stdout]    --> exercises/basic-of-rust/src/conditions.rs:140:9
[INFO] [stdout]     |
[INFO] [stdout] 140 |         assert_eq!(is_leap_year(2000), true);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#bool_assert_comparison
[INFO] [stdout] help: replace it with `assert!(..)`
[INFO] [stdout]     |
[INFO] [stdout] 140 -         assert_eq!(is_leap_year(2000), true);
[INFO] [stdout] 140 +         assert!(is_leap_year(2000));
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: used `assert_eq!` with a literal bool
[INFO] [stdout]    --> exercises/basic-of-rust/src/conditions.rs:141:9
[INFO] [stdout]     |
[INFO] [stdout] 141 |         assert_eq!(is_leap_year(1600), true);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#bool_assert_comparison
[INFO] [stdout] help: replace it with `assert!(..)`
[INFO] [stdout]     |
[INFO] [stdout] 141 -         assert_eq!(is_leap_year(1600), true);
[INFO] [stdout] 141 +         assert!(is_leap_year(1600));
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: used `assert_eq!` with a literal bool
[INFO] [stdout]    --> exercises/basic-of-rust/src/conditions.rs:147:9
[INFO] [stdout]     |
[INFO] [stdout] 147 |         assert_eq!(is_leap_year(2021), false);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#bool_assert_comparison
[INFO] [stdout] help: replace it with `assert!(..)`
[INFO] [stdout]     |
[INFO] [stdout] 147 -         assert_eq!(is_leap_year(2021), false);
[INFO] [stdout] 147 +         assert!(!is_leap_year(2021));
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: used `assert_eq!` with a literal bool
[INFO] [stdout]    --> exercises/basic-of-rust/src/conditions.rs:148:9
[INFO] [stdout]     |
[INFO] [stdout] 148 |         assert_eq!(is_leap_year(1900), false);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#bool_assert_comparison
[INFO] [stdout] help: replace it with `assert!(..)`
[INFO] [stdout]     |
[INFO] [stdout] 148 -         assert_eq!(is_leap_year(1900), false);
[INFO] [stdout] 148 +         assert!(!is_leap_year(1900));
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: used `assert_eq!` with a literal bool
[INFO] [stdout]    --> exercises/basic-of-rust/src/conditions.rs:149:9
[INFO] [stdout]     |
[INFO] [stdout] 149 |         assert_eq!(is_leap_year(1800), false);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#bool_assert_comparison
[INFO] [stdout] help: replace it with `assert!(..)`
[INFO] [stdout]     |
[INFO] [stdout] 149 -         assert_eq!(is_leap_year(1800), false);
[INFO] [stdout] 149 +         assert!(!is_leap_year(1800));
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: used `assert_eq!` with a literal bool
[INFO] [stdout]    --> exercises/basic-of-rust/src/conditions.rs:164:9
[INFO] [stdout]     |
[INFO] [stdout] 164 |         assert_eq!(is_prime(2), true);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#bool_assert_comparison
[INFO] [stdout] help: replace it with `assert!(..)`
[INFO] [stdout]     |
[INFO] [stdout] 164 -         assert_eq!(is_prime(2), true);
[INFO] [stdout] 164 +         assert!(is_prime(2));
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: used `assert_eq!` with a literal bool
[INFO] [stdout]    --> exercises/basic-of-rust/src/conditions.rs:165:9
[INFO] [stdout]     |
[INFO] [stdout] 165 |         assert_eq!(is_prime(7), true);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#bool_assert_comparison
[INFO] [stdout] help: replace it with `assert!(..)`
[INFO] [stdout]     |
[INFO] [stdout] 165 -         assert_eq!(is_prime(7), true);
[INFO] [stdout] 165 +         assert!(is_prime(7));
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: used `assert_eq!` with a literal bool
[INFO] [stdout]    --> exercises/basic-of-rust/src/conditions.rs:166:9
[INFO] [stdout]     |
[INFO] [stdout] 166 |         assert_eq!(is_prime(13), true);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#bool_assert_comparison
[INFO] [stdout] help: replace it with `assert!(..)`
[INFO] [stdout]     |
[INFO] [stdout] 166 -         assert_eq!(is_prime(13), true);
[INFO] [stdout] 166 +         assert!(is_prime(13));
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: used `assert_eq!` with a literal bool
[INFO] [stdout]    --> exercises/basic-of-rust/src/conditions.rs:167:9
[INFO] [stdout]     |
[INFO] [stdout] 167 |         assert_eq!(is_prime(19), true);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#bool_assert_comparison
[INFO] [stdout] help: replace it with `assert!(..)`
[INFO] [stdout]     |
[INFO] [stdout] 167 -         assert_eq!(is_prime(19), true);
[INFO] [stdout] 167 +         assert!(is_prime(19));
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: used `assert_eq!` with a literal bool
[INFO] [stdout]    --> exercises/basic-of-rust/src/conditions.rs:172:9
[INFO] [stdout]     |
[INFO] [stdout] 172 |         assert_eq!(is_prime(1), false);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#bool_assert_comparison
[INFO] [stdout] help: replace it with `assert!(..)`
[INFO] [stdout]     |
[INFO] [stdout] 172 -         assert_eq!(is_prime(1), false);
[INFO] [stdout] 172 +         assert!(!is_prime(1));
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: used `assert_eq!` with a literal bool
[INFO] [stdout]    --> exercises/basic-of-rust/src/conditions.rs:173:9
[INFO] [stdout]     |
[INFO] [stdout] 173 |         assert_eq!(is_prime(4), false);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#bool_assert_comparison
[INFO] [stdout] help: replace it with `assert!(..)`
[INFO] [stdout]     |
[INFO] [stdout] 173 -         assert_eq!(is_prime(4), false);
[INFO] [stdout] 173 +         assert!(!is_prime(4));
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: used `assert_eq!` with a literal bool
[INFO] [stdout]    --> exercises/basic-of-rust/src/conditions.rs:174:9
[INFO] [stdout]     |
[INFO] [stdout] 174 |         assert_eq!(is_prime(10), false);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#bool_assert_comparison
[INFO] [stdout] help: replace it with `assert!(..)`
[INFO] [stdout]     |
[INFO] [stdout] 174 -         assert_eq!(is_prime(10), false);
[INFO] [stdout] 174 +         assert!(!is_prime(10));
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: used `assert_eq!` with a literal bool
[INFO] [stdout]    --> exercises/basic-of-rust/src/conditions.rs:175:9
[INFO] [stdout]     |
[INFO] [stdout] 175 |         assert_eq!(is_prime(15), false);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#bool_assert_comparison
[INFO] [stdout] help: replace it with `assert!(..)`
[INFO] [stdout]     |
[INFO] [stdout] 175 -         assert_eq!(is_prime(15), false);
[INFO] [stdout] 175 +         assert!(!is_prime(15));
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.73s
[INFO] running `Command { std: "docker" "inspect" "be9c93270faebd1f0ad3a2c143887d9d9b68335609e04da27ea1cad1bfddee10", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "be9c93270faebd1f0ad3a2c143887d9d9b68335609e04da27ea1cad1bfddee10", kill_on_drop: false }`
[INFO] [stdout] be9c93270faebd1f0ad3a2c143887d9d9b68335609e04da27ea1cad1bfddee10