[INFO] cloning repository https://github.com/PhamDucLong90/RustBai2
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/PhamDucLong90/RustBai2" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FPhamDucLong90%2FRustBai2", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FPhamDucLong90%2FRustBai2'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8b6864f2332c1198020963d35f902a5684735baf
[INFO] checking PhamDucLong90/RustBai2 against try#6619027b13a87a3597115f2c8231f107bf3a7a5f for pr-139624
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FPhamDucLong90%2FRustBai2" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/PhamDucLong90/RustBai2 on toolchain 6619027b13a87a3597115f2c8231f107bf3a7a5f
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+6619027b13a87a3597115f2c8231f107bf3a7a5f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/PhamDucLong90/RustBai2
[INFO] removed 0 missing tests
[INFO] finished tweaking git repo https://github.com/PhamDucLong90/RustBai2
[INFO] tweaked toml for git repo https://github.com/PhamDucLong90/RustBai2 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/PhamDucLong90/RustBai2 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" "+6619027b13a87a3597115f2c8231f107bf3a7a5f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+6619027b13a87a3597115f2c8231f107bf3a7a5f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 316ea5f3cf9fd3edef7a66c06025af49a7a19d62b55db6defca9c1e0a3a5e857
[INFO] running `Command { std: "docker" "start" "-a" "316ea5f3cf9fd3edef7a66c06025af49a7a19d62b55db6defca9c1e0a3a5e857", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "316ea5f3cf9fd3edef7a66c06025af49a7a19d62b55db6defca9c1e0a3a5e857", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "316ea5f3cf9fd3edef7a66c06025af49a7a19d62b55db6defca9c1e0a3a5e857", kill_on_drop: false }`
[INFO] [stdout] 316ea5f3cf9fd3edef7a66c06025af49a7a19d62b55db6defca9c1e0a3a5e857
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+6619027b13a87a3597115f2c8231f107bf3a7a5f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 581522d369e272e5b84afcf5f8f3388ab0771365b3ffea5f975ebfd090e33b55
[INFO] running `Command { std: "docker" "start" "-a" "581522d369e272e5b84afcf5f8f3388ab0771365b3ffea5f975ebfd090e33b55", kill_on_drop: false }`
[INFO] [stderr]     Checking Rust-Bootcamp-2023 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking basic-of-rust v0.1.0 (/opt/rustwide/workdir/exercises/basic-of-rust)
[INFO] [stderr]     Checking ownership-borrowing v0.1.0 (/opt/rustwide/workdir/exercises/ownership-borrowing)
[INFO] [stdout] error: expected one of `:`, `@`, or `|`, found `,`
[INFO] [stdout]  --> exercises/basic-of-rust/src/functions.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 3 | fn sum(x, y: i32) {
[INFO] [stdout]   |         ^ expected one of `:`, `@`, or `|`
[INFO] [stdout]   |
[INFO] [stdout]   = note: anonymous parameters are removed in the 2018 edition (see RFC 1685)
[INFO] [stdout] help: if this is a `self` type, give it a parameter name
[INFO] [stdout]   |
[INFO] [stdout] 3 | fn sum(self: x, y: i32) {
[INFO] [stdout]   |        +++++
[INFO] [stdout] help: if this is a parameter name, give it a type
[INFO] [stdout]   |
[INFO] [stdout] 3 | fn sum(x: TypeName, y: i32) {
[INFO] [stdout]   |         ++++++++++
[INFO] [stdout] help: if this is a type, explicitly ignore the parameter name
[INFO] [stdout]   |
[INFO] [stdout] 3 | fn sum(_: x, y: i32) {
[INFO] [stdout]   |        ++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected one of `:`, `@`, or `|`, found `,`
[INFO] [stdout]  --> exercises/basic-of-rust/src/functions.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 3 | fn sum(x, y: i32) {
[INFO] [stdout]   |         ^ expected one of `:`, `@`, or `|`
[INFO] [stdout]   |
[INFO] [stdout]   = note: anonymous parameters are removed in the 2018 edition (see RFC 1685)
[INFO] [stdout] help: if this is a `self` type, give it a parameter name
[INFO] [stdout]   |
[INFO] [stdout] 3 | fn sum(self: x, y: i32) {
[INFO] [stdout]   |        +++++
[INFO] [stdout] help: if this is a parameter name, give it a type
[INFO] [stdout]   |
[INFO] [stdout] 3 | fn sum(x: TypeName, y: i32) {
[INFO] [stdout]   |         ++++++++++
[INFO] [stdout] help: if this is a type, explicitly ignore the parameter name
[INFO] [stdout]   |
[INFO] [stdout] 3 | fn sum(_: x, y: i32) {
[INFO] [stdout]   |        ++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected one of `:`, `@`, or `|`, found `,`
[INFO] [stdout]  --> exercises/basic-of-rust/src/functions.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 3 | fn sum(x, y: i32) {
[INFO] [stdout]   |         ^ expected one of `:`, `@`, or `|`
[INFO] [stdout]   |
[INFO] [stdout]   = note: anonymous parameters are removed in the 2018 edition (see RFC 1685)
[INFO] [stdout] help: if this is a `self` type, give it a parameter name
[INFO] [stdout]   |
[INFO] [stdout] 3 | fn sum(self: x, y: i32) {
[INFO] [stdout]   |        +++++
[INFO] [stdout] help: if this is a parameter name, give it a type
[INFO] [stdout]   |
[INFO] [stdout] 3 | fn sum(x: TypeName, y: i32) {
[INFO] [stdout]   |         ++++++++++
[INFO] [stdout] help: if this is a type, explicitly ignore the parameter name
[INFO] [stdout]   |
[INFO] [stdout] 3 | fn sum(_: x, y: i32) {
[INFO] [stdout]   |        ++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `string_value` in this scope
[INFO] [stdout]   --> exercises/ownership-borrowing/src/lib.rs:58:43
[INFO] [stdout]    |
[INFO] [stdout] 58 |     let str_ref: &'static str = Box::leak(string_value.into_boxed_str()); // Obtain a reference to the String
[INFO] [stdout]    |                                           ^^^^^^^^^^^^ help: a local variable with a similar name exists: `str_value`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `y`
[INFO] [stdout]  --> exercises/ownership-borrowing/src/lib.rs:6:9
[INFO] [stdout]   |
[INFO] [stdout] 6 |     let y = &x;
[INFO] [stdout]   |         ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `z`
[INFO] [stdout]  --> exercises/ownership-borrowing/src/lib.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 7 |     let z = &x;
[INFO] [stdout]   |         ^ help: if this is intentional, prefix it with an underscore: `_z`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0384]: cannot assign twice to immutable variable `count`
[INFO] [stdout]   --> exercises/ownership-borrowing/src/lib.rs:50:9
[INFO] [stdout]    |
[INFO] [stdout] 40 |     let count = 9;
[INFO] [stdout]    |         ----- first assignment to `count`
[INFO] [stdout] ...
[INFO] [stdout] 50 |         count -= 1;
[INFO] [stdout]    |         ^^^^^^^^^^ cannot assign twice to immutable variable
[INFO] [stdout]    |
[INFO] [stdout] help: consider making this binding mutable
[INFO] [stdout]    |
[INFO] [stdout] 40 |     let mut count = 9;
[INFO] [stdout]    |         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0597]: `s` does not live long enough
[INFO] [stdout]   --> exercises/ownership-borrowing/src/lib.rs:93:31
[INFO] [stdout]    |
[INFO] [stdout] 91 |         let s = line.unwrap();
[INFO] [stdout]    |             - binding `s` declared here
[INFO] [stdout] 92 |
[INFO] [stdout] 93 |         let data: Vec<&str> = s.split("\t").collect();
[INFO] [stdout]    |                               ^ borrowed value does not live long enough
[INFO] [stdout] 94 |         if prev_key.len() == 0 {
[INFO] [stdout]    |            -------- borrow later used here
[INFO] [stdout] ...
[INFO] [stdout] 97 |     }
[INFO] [stdout]    |     - `s` dropped here while still borrowed
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0597]: `chars` does not live long enough
[INFO] [stdout]    --> exercises/ownership-borrowing/src/lib.rs:106:43
[INFO] [stdout]     |
[INFO] [stdout] 105 |         let chars = [b'x', b'y', b'z'];
[INFO] [stdout]     |             ----- binding `chars` declared here
[INFO] [stdout] 106 |         let s: &str = std::str::from_utf8(&chars).unwrap();
[INFO] [stdout]     |                                           ^^^^^^ borrowed value does not live long enough
[INFO] [stdout] 107 |         v.push(&s);
[INFO] [stdout] 108 |     }
[INFO] [stdout]     |     - `chars` dropped here while still borrowed
[INFO] [stdout] 109 |     println!("{:?}", v);
[INFO] [stdout]     |                      - borrow later used here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0597]: `add_input` does not live long enough
[INFO] [stdout]    --> exercises/ownership-borrowing/src/lib.rs:124:34
[INFO] [stdout]     |
[INFO] [stdout] 118 |         let mut add_input = String::from("");
[INFO] [stdout]     |             ------------- binding `add_input` declared here
[INFO] [stdout] ...
[INFO] [stdout] 124 |         let add_vec: Vec<&str> = add_input.trim()[..].split_whitespace().collect();
[INFO] [stdout]     |                                  ^^^^^^^^^ borrowed value does not live long enough
[INFO] [stdout] ...
[INFO] [stdout] 132 |         accounting.push(person);
[INFO] [stdout]     |         ---------- borrow later used here
[INFO] [stdout] 133 |     }
[INFO] [stdout]     |     - `add_input` dropped here while still borrowed
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0384, E0425, E0597.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0384`.
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> exercises/basic-of-rust/src/conditions.rs:26:9
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub fn foo_if_fizz(fizzish: &str) -> &str {
[INFO] [stdout]    |                                      ---- expected `&str` because of return type
[INFO] [stdout] ...
[INFO] [stdout] 26 |         1
[INFO] [stdout]    |         ^ expected `&str`, found integer
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `ownership-borrowing` (lib) due to 5 previous errors; 2 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> exercises/basic-of-rust/src/conditions.rs:26:9
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub fn foo_if_fizz(fizzish: &str) -> &str {
[INFO] [stdout]    |                                      ---- expected `&str` because of return type
[INFO] [stdout] ...
[INFO] [stdout] 26 |         1
[INFO] [stdout]    |         ^ expected `&str`, found integer
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> exercises/basic-of-rust/src/strings.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 12 |     s.push(" world");
[INFO] [stdout]    |       ---- ^^^^^^^^ expected `char`, found `&str`
[INFO] [stdout]    |       |
[INFO] [stdout]    |       arguments to this method are incorrect
[INFO] [stdout]    |
[INFO] [stdout] note: method defined here
[INFO] [stdout]   --> /rustc/6619027b13a87a3597115f2c8231f107bf3a7a5f/library/alloc/src/string.rs:1403:12
[INFO] [stdout] help: you might have meant to use `push_str`
[INFO] [stdout]    |
[INFO] [stdout] 12 |     s.push_str(" world");
[INFO] [stdout]    |           ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0600]: cannot apply unary operator `-` to type `u32`
[INFO] [stdout]   --> exercises/basic-of-rust/src/conditions.rs:77:35
[INFO] [stdout]    |
[INFO] [stdout] 77 |         let result = check_number(-5);
[INFO] [stdout]    |                                   ^^ cannot apply unary operator `-`
[INFO] [stdout]    |
[INFO] [stdout]    = note: unsigned values cannot be negated
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a`
[INFO] [stdout]  --> exercises/basic-of-rust/src/conditions.rs:6:15
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub fn bigger(a: i32, b: i32) -> i32 {
[INFO] [stdout]   |               ^ help: if this is intentional, prefix it with an underscore: `_a`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `b`
[INFO] [stdout]  --> exercises/basic-of-rust/src/conditions.rs:6:23
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub fn bigger(a: i32, b: i32) -> i32 {
[INFO] [stdout]   |                       ^ help: if this is intentional, prefix it with an underscore: `_b`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> exercises/basic-of-rust/src/strings.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 12 |     s.push(" world");
[INFO] [stdout]    |       ---- ^^^^^^^^ expected `char`, found `&str`
[INFO] [stdout]    |       |
[INFO] [stdout]    |       arguments to this method are incorrect
[INFO] [stdout]    |
[INFO] [stdout] note: method defined here
[INFO] [stdout]   --> /rustc/6619027b13a87a3597115f2c8231f107bf3a7a5f/library/alloc/src/string.rs:1403:12
[INFO] [stdout] help: you might have meant to use `push_str`
[INFO] [stdout]    |
[INFO] [stdout] 12 |     s.push_str(" world");
[INFO] [stdout]    |           ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `number`
[INFO] [stdout]   --> exercises/basic-of-rust/src/conditions.rs:14:17
[INFO] [stdout]    |
[INFO] [stdout] 14 | fn check_number(number: u32) -> &'static str {
[INFO] [stdout]    |                 ^^^^^^ help: if this is intentional, prefix it with an underscore: `_number`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `year`
[INFO] [stdout]   --> exercises/basic-of-rust/src/conditions.rs:33:17
[INFO] [stdout]    |
[INFO] [stdout] 33 | fn is_leap_year(year: i32) -> bool {
[INFO] [stdout]    |                 ^^^^ help: if this is intentional, prefix it with an underscore: `_year`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> exercises/basic-of-rust/src/conditions.rs:26:9
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub fn foo_if_fizz(fizzish: &str) -> &str {
[INFO] [stdout]    |                                      ---- expected `&str` because of return type
[INFO] [stdout] ...
[INFO] [stdout] 26 |         1
[INFO] [stdout]    |         ^ expected `&str`, found integer
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]   --> exercises/basic-of-rust/src/conditions.rs:40:14
[INFO] [stdout]    |
[INFO] [stdout] 40 | fn factorial(n: u32) -> u32 {
[INFO] [stdout]    |              ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]   --> exercises/basic-of-rust/src/conditions.rs:48:13
[INFO] [stdout]    |
[INFO] [stdout] 48 | fn is_prime(n: u32) -> bool {
[INFO] [stdout]    |             ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> exercises/basic-of-rust/src/functions.rs:42:23
[INFO] [stdout]    |
[INFO] [stdout] 42 |         assert_eq!(s, 3);
[INFO] [stdout]    |                       ^ expected `()`, found integer
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `string_value` in this scope
[INFO] [stdout]   --> exercises/ownership-borrowing/src/lib.rs:58:43
[INFO] [stdout]    |
[INFO] [stdout] 58 |     let str_ref: &'static str = Box::leak(string_value.into_boxed_str()); // Obtain a reference to the String
[INFO] [stdout]    |                                           ^^^^^^^^^^^^ help: a local variable with a similar name exists: `str_value`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]   --> exercises/basic-of-rust/src/functions.rs:11:21
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub fn sum_one_to_n(n: u32) -> u32 {
[INFO] [stdout]    |                     ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `numbers`
[INFO] [stdout]   --> exercises/basic-of-rust/src/functions.rs:21:22
[INFO] [stdout]    |
[INFO] [stdout] 21 | fn calculate_average(numbers: &[f64]) -> f64 {
[INFO] [stdout]    |                      ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_numbers`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `numbers`
[INFO] [stdout]   --> exercises/basic-of-rust/src/functions.rs:27:21
[INFO] [stdout]    |
[INFO] [stdout] 27 | fn sum_even_numbers(numbers: &[i32]) -> i32 {
[INFO] [stdout]    |                     ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_numbers`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0600]: cannot apply unary operator `-` to type `u32`
[INFO] [stdout]   --> exercises/basic-of-rust/src/conditions.rs:77:35
[INFO] [stdout]    |
[INFO] [stdout] 77 |         let result = check_number(-5);
[INFO] [stdout]    |                                   ^^ cannot apply unary operator `-`
[INFO] [stdout]    |
[INFO] [stdout]    = note: unsigned values cannot be negated
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> exercises/basic-of-rust/src/strings.rs:13:10
[INFO] [stdout]    |
[INFO] [stdout] 13 |     s += "!".to_string();
[INFO] [stdout]    |          ^^^^^^^^^^^^^^^ expected `&str`, found `String`
[INFO] [stdout]    |
[INFO] [stdout] help: try removing the method call
[INFO] [stdout]    |
[INFO] [stdout] 13 -     s += "!".to_string();
[INFO] [stdout] 13 +     s += "!";
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> exercises/basic-of-rust/src/strings.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 12 |     s.push(" world");
[INFO] [stdout]    |       ---- ^^^^^^^^ expected `char`, found `&str`
[INFO] [stdout]    |       |
[INFO] [stdout]    |       arguments to this method are incorrect
[INFO] [stdout]    |
[INFO] [stdout] note: method defined here
[INFO] [stdout]   --> /rustc/6619027b13a87a3597115f2c8231f107bf3a7a5f/library/alloc/src/string.rs:1403:12
[INFO] [stdout] help: you might have meant to use `push_str`
[INFO] [stdout]    |
[INFO] [stdout] 12 |     s.push_str(" world");
[INFO] [stdout]    |           ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> exercises/basic-of-rust/src/strings.rs:21:19
[INFO] [stdout]    |
[INFO] [stdout] 21 |     let s3 = s1 + s2;
[INFO] [stdout]    |                   ^^ expected `&str`, found `String`
[INFO] [stdout]    |
[INFO] [stdout] help: consider borrowing here
[INFO] [stdout]    |
[INFO] [stdout] 21 |     let s3 = s1 + &s2;
[INFO] [stdout]    |                   +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a`
[INFO] [stdout]  --> exercises/basic-of-rust/src/conditions.rs:6:15
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub fn bigger(a: i32, b: i32) -> i32 {
[INFO] [stdout]   |               ^ help: if this is intentional, prefix it with an underscore: `_a`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> exercises/basic-of-rust/src/strings.rs:13:10
[INFO] [stdout]    |
[INFO] [stdout] 13 |     s += "!".to_string();
[INFO] [stdout]    |          ^^^^^^^^^^^^^^^ expected `&str`, found `String`
[INFO] [stdout]    |
[INFO] [stdout] help: try removing the method call
[INFO] [stdout]    |
[INFO] [stdout] 13 -     s += "!".to_string();
[INFO] [stdout] 13 +     s += "!";
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0308, E0600.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> exercises/basic-of-rust/src/strings.rs:21:19
[INFO] [stdout]    |
[INFO] [stdout] 21 |     let s3 = s1 + s2;
[INFO] [stdout]    |                   ^^ expected `&str`, found `String`
[INFO] [stdout]    |
[INFO] [stdout] help: consider borrowing here
[INFO] [stdout]    |
[INFO] [stdout] 21 |     let s3 = s1 + &s2;
[INFO] [stdout]    |                   +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `b`
[INFO] [stdout]  --> exercises/basic-of-rust/src/conditions.rs:6:23
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub fn bigger(a: i32, b: i32) -> i32 {
[INFO] [stdout]   |                       ^ help: if this is intentional, prefix it with an underscore: `_b`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `number`
[INFO] [stdout]   --> exercises/basic-of-rust/src/conditions.rs:14:17
[INFO] [stdout]    |
[INFO] [stdout] 14 | fn check_number(number: u32) -> &'static str {
[INFO] [stdout]    |                 ^^^^^^ help: if this is intentional, prefix it with an underscore: `_number`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `year`
[INFO] [stdout]   --> exercises/basic-of-rust/src/conditions.rs:33:17
[INFO] [stdout]    |
[INFO] [stdout] 33 | fn is_leap_year(year: i32) -> bool {
[INFO] [stdout]    |                 ^^^^ help: if this is intentional, prefix it with an underscore: `_year`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]   --> exercises/basic-of-rust/src/conditions.rs:40:14
[INFO] [stdout]    |
[INFO] [stdout] 40 | fn factorial(n: u32) -> u32 {
[INFO] [stdout]    |              ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]   --> exercises/basic-of-rust/src/conditions.rs:48:13
[INFO] [stdout]    |
[INFO] [stdout] 48 | fn is_prime(n: u32) -> bool {
[INFO] [stdout]    |             ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `color`
[INFO] [stdout]  --> exercises/basic-of-rust/src/strings.rs:3:14
[INFO] [stdout]   |
[INFO] [stdout] 3 | fn exercise1(color: &str) -> String {
[INFO] [stdout]   |              ^^^^^ help: if this is intentional, prefix it with an underscore: `_color`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `input`
[INFO] [stdout]   --> exercises/basic-of-rust/src/strings.rs:28:19
[INFO] [stdout]    |
[INFO] [stdout] 28 | fn reverse_string(input: &str) -> String {
[INFO] [stdout]    |                   ^^^^^ help: if this is intentional, prefix it with an underscore: `_input`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `word`
[INFO] [stdout]   --> exercises/basic-of-rust/src/strings.rs:35:18
[INFO] [stdout]    |
[INFO] [stdout] 35 | fn is_palindrome(word: &str) -> bool {
[INFO] [stdout]    |                  ^^^^ help: if this is intentional, prefix it with an underscore: `_word`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `string`
[INFO] [stdout]   --> exercises/basic-of-rust/src/strings.rs:41:27
[INFO] [stdout]    |
[INFO] [stdout] 41 | fn count_char_occurrences(string: &str, ch: char) -> usize {
[INFO] [stdout]    |                           ^^^^^^ help: if this is intentional, prefix it with an underscore: `_string`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ch`
[INFO] [stdout]   --> exercises/basic-of-rust/src/strings.rs:41:41
[INFO] [stdout]    |
[INFO] [stdout] 41 | fn count_char_occurrences(string: &str, ch: char) -> usize {
[INFO] [stdout]    |                                         ^^ help: if this is intentional, prefix it with an underscore: `_ch`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]   --> exercises/basic-of-rust/src/functions.rs:11:21
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub fn sum_one_to_n(n: u32) -> u32 {
[INFO] [stdout]    |                     ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `numbers`
[INFO] [stdout]   --> exercises/basic-of-rust/src/functions.rs:21:22
[INFO] [stdout]    |
[INFO] [stdout] 21 | fn calculate_average(numbers: &[f64]) -> f64 {
[INFO] [stdout]    |                      ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_numbers`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `numbers`
[INFO] [stdout]   --> exercises/basic-of-rust/src/functions.rs:27:21
[INFO] [stdout]    |
[INFO] [stdout] 27 | fn sum_even_numbers(numbers: &[i32]) -> i32 {
[INFO] [stdout]    |                     ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_numbers`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> exercises/basic-of-rust/src/strings.rs:13:10
[INFO] [stdout]    |
[INFO] [stdout] 13 |     s += "!".to_string();
[INFO] [stdout]    |          ^^^^^^^^^^^^^^^ expected `&str`, found `String`
[INFO] [stdout]    |
[INFO] [stdout] help: try removing the method call
[INFO] [stdout]    |
[INFO] [stdout] 13 -     s += "!".to_string();
[INFO] [stdout] 13 +     s += "!";
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> exercises/basic-of-rust/src/strings.rs:21:19
[INFO] [stdout]    |
[INFO] [stdout] 21 |     let s3 = s1 + s2;
[INFO] [stdout]    |                   ^^ expected `&str`, found `String`
[INFO] [stdout]    |
[INFO] [stdout] help: consider borrowing here
[INFO] [stdout]    |
[INFO] [stdout] 21 |     let s3 = s1 + &s2;
[INFO] [stdout]    |                   +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `color`
[INFO] [stdout]  --> exercises/basic-of-rust/src/strings.rs:3:14
[INFO] [stdout]   |
[INFO] [stdout] 3 | fn exercise1(color: &str) -> String {
[INFO] [stdout]   |              ^^^^^ help: if this is intentional, prefix it with an underscore: `_color`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `input`
[INFO] [stdout]   --> exercises/basic-of-rust/src/strings.rs:28:19
[INFO] [stdout]    |
[INFO] [stdout] 28 | fn reverse_string(input: &str) -> String {
[INFO] [stdout]    |                   ^^^^^ help: if this is intentional, prefix it with an underscore: `_input`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `Rust-Bootcamp-2023` (test "conditions") due to 2 previous errors; 6 warnings emitted
[INFO] [stderr] error: could not compile `Rust-Bootcamp-2023` (test "functions") due to 2 previous errors; 3 warnings emitted
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> exercises/basic-of-rust/src/functions.rs:42:23
[INFO] [stdout]    |
[INFO] [stdout] 42 |         assert_eq!(s, 3);
[INFO] [stdout]    |                       ^ expected `()`, found integer
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `word`
[INFO] [stdout]   --> exercises/basic-of-rust/src/strings.rs:35:18
[INFO] [stdout]    |
[INFO] [stdout] 35 | fn is_palindrome(word: &str) -> bool {
[INFO] [stdout]    |                  ^^^^ help: if this is intentional, prefix it with an underscore: `_word`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `string`
[INFO] [stdout]   --> exercises/basic-of-rust/src/strings.rs:41:27
[INFO] [stdout]    |
[INFO] [stdout] 41 | fn count_char_occurrences(string: &str, ch: char) -> usize {
[INFO] [stdout]    |                           ^^^^^^ help: if this is intentional, prefix it with an underscore: `_string`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ch`
[INFO] [stdout]   --> exercises/basic-of-rust/src/strings.rs:41:41
[INFO] [stdout]    |
[INFO] [stdout] 41 | fn count_char_occurrences(string: &str, ch: char) -> usize {
[INFO] [stdout]    |                                         ^^ help: if this is intentional, prefix it with an underscore: `_ch`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `y`
[INFO] [stdout]  --> exercises/ownership-borrowing/src/lib.rs:6:9
[INFO] [stdout]   |
[INFO] [stdout] 6 |     let y = &x;
[INFO] [stdout]   |         ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a`
[INFO] [stdout]  --> exercises/basic-of-rust/src/conditions.rs:6:15
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub fn bigger(a: i32, b: i32) -> i32 {
[INFO] [stdout]   |               ^ help: if this is intentional, prefix it with an underscore: `_a`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `b`
[INFO] [stdout]  --> exercises/basic-of-rust/src/conditions.rs:6:23
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub fn bigger(a: i32, b: i32) -> i32 {
[INFO] [stdout]   |                       ^ help: if this is intentional, prefix it with an underscore: `_b`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `number`
[INFO] [stdout]   --> exercises/basic-of-rust/src/conditions.rs:14:17
[INFO] [stdout]    |
[INFO] [stdout] 14 | fn check_number(number: u32) -> &'static str {
[INFO] [stdout]    |                 ^^^^^^ help: if this is intentional, prefix it with an underscore: `_number`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `year`
[INFO] [stdout]   --> exercises/basic-of-rust/src/conditions.rs:33:17
[INFO] [stdout]    |
[INFO] [stdout] 33 | fn is_leap_year(year: i32) -> bool {
[INFO] [stdout]    |                 ^^^^ help: if this is intentional, prefix it with an underscore: `_year`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]   --> exercises/basic-of-rust/src/conditions.rs:40:14
[INFO] [stdout]    |
[INFO] [stdout] 40 | fn factorial(n: u32) -> u32 {
[INFO] [stdout]    |              ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `z`
[INFO] [stdout]  --> exercises/ownership-borrowing/src/lib.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 7 |     let z = &x;
[INFO] [stdout]   |         ^ help: if this is intentional, prefix it with an underscore: `_z`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]   --> exercises/basic-of-rust/src/conditions.rs:48:13
[INFO] [stdout]    |
[INFO] [stdout] 48 | fn is_prime(n: u32) -> bool {
[INFO] [stdout]    |             ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0384]: cannot assign twice to immutable variable `count`
[INFO] [stdout]   --> exercises/ownership-borrowing/src/lib.rs:50:9
[INFO] [stdout]    |
[INFO] [stdout] 40 |     let count = 9;
[INFO] [stdout]    |         ----- first assignment to `count`
[INFO] [stdout] ...
[INFO] [stdout] 50 |         count -= 1;
[INFO] [stdout]    |         ^^^^^^^^^^ cannot assign twice to immutable variable
[INFO] [stdout]    |
[INFO] [stdout] help: consider making this binding mutable
[INFO] [stdout]    |
[INFO] [stdout] 40 |     let mut count = 9;
[INFO] [stdout]    |         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0597]: `s` does not live long enough
[INFO] [stdout]   --> exercises/ownership-borrowing/src/lib.rs:93:31
[INFO] [stdout]    |
[INFO] [stdout] 91 |         let s = line.unwrap();
[INFO] [stdout]    |             - binding `s` declared here
[INFO] [stdout] 92 |
[INFO] [stdout] 93 |         let data: Vec<&str> = s.split("\t").collect();
[INFO] [stdout]    |                               ^ borrowed value does not live long enough
[INFO] [stdout] 94 |         if prev_key.len() == 0 {
[INFO] [stdout]    |            -------- borrow later used here
[INFO] [stdout] ...
[INFO] [stdout] 97 |     }
[INFO] [stdout]    |     - `s` dropped here while still borrowed
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0597]: `chars` does not live long enough
[INFO] [stdout]    --> exercises/ownership-borrowing/src/lib.rs:106:43
[INFO] [stdout]     |
[INFO] [stdout] 105 |         let chars = [b'x', b'y', b'z'];
[INFO] [stdout]     |             ----- binding `chars` declared here
[INFO] [stdout] 106 |         let s: &str = std::str::from_utf8(&chars).unwrap();
[INFO] [stdout]     |                                           ^^^^^^ borrowed value does not live long enough
[INFO] [stdout] 107 |         v.push(&s);
[INFO] [stdout] 108 |     }
[INFO] [stdout]     |     - `chars` dropped here while still borrowed
[INFO] [stdout] 109 |     println!("{:?}", v);
[INFO] [stdout]     |                      - borrow later used here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `color`
[INFO] [stdout]  --> exercises/basic-of-rust/src/strings.rs:3:14
[INFO] [stdout]   |
[INFO] [stdout] 3 | fn exercise1(color: &str) -> String {
[INFO] [stdout]   |              ^^^^^ help: if this is intentional, prefix it with an underscore: `_color`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `input`
[INFO] [stdout]   --> exercises/basic-of-rust/src/strings.rs:28:19
[INFO] [stdout]    |
[INFO] [stdout] 28 | fn reverse_string(input: &str) -> String {
[INFO] [stdout]    |                   ^^^^^ help: if this is intentional, prefix it with an underscore: `_input`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `word`
[INFO] [stdout]   --> exercises/basic-of-rust/src/strings.rs:35:18
[INFO] [stdout]    |
[INFO] [stdout] 35 | fn is_palindrome(word: &str) -> bool {
[INFO] [stdout]    |                  ^^^^ help: if this is intentional, prefix it with an underscore: `_word`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `string`
[INFO] [stdout]   --> exercises/basic-of-rust/src/strings.rs:41:27
[INFO] [stdout]    |
[INFO] [stdout] 41 | fn count_char_occurrences(string: &str, ch: char) -> usize {
[INFO] [stdout]    |                           ^^^^^^ help: if this is intentional, prefix it with an underscore: `_string`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ch`
[INFO] [stdout]   --> exercises/basic-of-rust/src/strings.rs:41:41
[INFO] [stdout]    |
[INFO] [stdout] 41 | fn count_char_occurrences(string: &str, ch: char) -> usize {
[INFO] [stdout]    |                                         ^^ help: if this is intentional, prefix it with an underscore: `_ch`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0597]: `add_input` does not live long enough
[INFO] [stdout]    --> exercises/ownership-borrowing/src/lib.rs:124:34
[INFO] [stdout]     |
[INFO] [stdout] 118 |         let mut add_input = String::from("");
[INFO] [stdout]     |             ------------- binding `add_input` declared here
[INFO] [stdout] ...
[INFO] [stdout] 124 |         let add_vec: Vec<&str> = add_input.trim()[..].split_whitespace().collect();
[INFO] [stdout]     |                                  ^^^^^^^^^ borrowed value does not live long enough
[INFO] [stdout] ...
[INFO] [stdout] 132 |         accounting.push(person);
[INFO] [stdout]     |         ---------- borrow later used here
[INFO] [stdout] 133 |     }
[INFO] [stdout]     |     - `add_input` dropped here while still borrowed
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `basic-of-rust` (lib) due to 5 previous errors; 14 warnings emitted
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]   --> exercises/basic-of-rust/src/functions.rs:11:21
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub fn sum_one_to_n(n: u32) -> u32 {
[INFO] [stdout]    |                     ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0384, E0425, E0597.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0384`.
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `numbers`
[INFO] [stdout]   --> exercises/basic-of-rust/src/functions.rs:21:22
[INFO] [stdout]    |
[INFO] [stdout] 21 | fn calculate_average(numbers: &[f64]) -> f64 {
[INFO] [stdout]    |                      ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_numbers`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `numbers`
[INFO] [stdout]   --> exercises/basic-of-rust/src/functions.rs:27:21
[INFO] [stdout]    |
[INFO] [stdout] 27 | fn sum_even_numbers(numbers: &[i32]) -> i32 {
[INFO] [stdout]    |                     ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_numbers`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `Rust-Bootcamp-2023` (test "strings") due to 3 previous errors; 5 warnings emitted
[INFO] [stdout] Some errors have detailed explanations: E0308, E0600.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `ownership-borrowing` (lib test) due to 5 previous errors; 2 warnings emitted
[INFO] [stderr] error: could not compile `basic-of-rust` (lib test) due to 7 previous errors; 14 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "581522d369e272e5b84afcf5f8f3388ab0771365b3ffea5f975ebfd090e33b55", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "581522d369e272e5b84afcf5f8f3388ab0771365b3ffea5f975ebfd090e33b55", kill_on_drop: false }`
[INFO] [stdout] 581522d369e272e5b84afcf5f8f3388ab0771365b3ffea5f975ebfd090e33b55