[INFO] cloning repository https://github.com/ryanthegentry/Rustlings
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ryanthegentry/Rustlings" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fryanthegentry%2FRustlings", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fryanthegentry%2FRustlings'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3d77f264101a35c4fea194e0253e4ecad2ccb3c0
[INFO] checking ryanthegentry/Rustlings against beta-2021-10-15 for beta-1.56-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fryanthegentry%2FRustlings" "/workspace/builds/worker-36/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-36/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ryanthegentry/Rustlings on toolchain beta-2021-10-15
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-10-15" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ryanthegentry/Rustlings
[INFO] finished tweaking git repo https://github.com/ryanthegentry/Rustlings
[INFO] tweaked toml for git repo https://github.com/ryanthegentry/Rustlings written to /workspace/builds/worker-36/source/Cargo.toml
[INFO] crate git repo https://github.com/ryanthegentry/Rustlings already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-10-15" "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-36/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-36/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-10-15" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 99b483b9fc8bec18e7be5b3d25f73a868565271b46b8f6acb453b12879a4de02
[INFO] running `Command { std: "docker" "start" "-a" "99b483b9fc8bec18e7be5b3d25f73a868565271b46b8f6acb453b12879a4de02", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "99b483b9fc8bec18e7be5b3d25f73a868565271b46b8f6acb453b12879a4de02", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "99b483b9fc8bec18e7be5b3d25f73a868565271b46b8f6acb453b12879a4de02", kill_on_drop: false }`
[INFO] [stdout] 99b483b9fc8bec18e7be5b3d25f73a868565271b46b8f6acb453b12879a4de02
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-36/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-36/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-10-15" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2a1811c08e824004d53ece77b1d1a5d7ef21cb0f3f87520631e833a0395095d5
[INFO] running `Command { std: "docker" "start" "-a" "2a1811c08e824004d53ece77b1d1a5d7ef21cb0f3f87520631e833a0395095d5", kill_on_drop: false }`
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[INFO] [stderr]    Compiling ryu v1.0.3
[INFO] [stderr]    Compiling serde v1.0.106
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[INFO] [stderr]     Checking string_slice v0.1.0 (/opt/rustwide/workdir/Common Collections/Strings/String Slice)
[INFO] [stderr]     Checking variables_and_mutability v0.1.0 (/opt/rustwide/workdir/Common Programming Concepts/Variables/Variables and Mutability)
[INFO] [stderr]     Checking repetition_with_loops v0.1.0 (/opt/rustwide/workdir/Common Programming Concepts/If/Repetition with Loops)
[INFO] [stderr]     Checking shadowing v0.1.0 (/opt/rustwide/workdir/Common Programming Concepts/Variables/Shadowing)
[INFO] [stderr]     Checking references_and_borrowing v0.1.0 (/opt/rustwide/workdir/Understanding Ownership/Move Semantics/References and Borrowing)
[INFO] [stderr]     Checking assert_eq v0.1.0 (/opt/rustwide/workdir/Writing Automated Tests/Tests/Assert_Eq)
[INFO] [stderr]     Checking charcaters v0.1.0 (/opt/rustwide/workdir/Common Programming Concepts/Data Types/Characters)
[INFO] [stderr]     Checking arrays v0.1.0 (/opt/rustwide/workdir/Common Programming Concepts/Data Types/Arrays)
[INFO] [stderr]     Checking returning_a_string v0.1.0 (/opt/rustwide/workdir/Common Collections/Strings/Returning a String)
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[INFO] [stderr]     Checking scalar_types v0.1.0 (/opt/rustwide/workdir/Common Programming Concepts/Data Types/Scalar Types)
[INFO] [stderr]     Checking return_a_value v0.1.0 (/opt/rustwide/workdir/Common Programming Concepts/Functions/Return a Value)
[INFO] [stderr]     Checking error_handling_intro v0.1.0 (/opt/rustwide/workdir/Recoverable and Unrecoverable Errors/Error Handling/Intro)
[INFO] [stderr]     Checking calling_a_macro v0.1.0 (/opt/rustwide/workdir/Modules and Macros/Macros/Calling a Macro)
[INFO] [stderr]     Checking else_if v0.1.0 (/opt/rustwide/workdir/Common Programming Concepts/If/else if)
[INFO] [stderr]     Checking modules_intro v0.1.0 (/opt/rustwide/workdir/Modules and Macros/Modules/Intro)
[INFO] [stderr]     Checking variables1 v0.1.0 (/opt/rustwide/workdir/Common Programming Concepts/Variables/Variables 1)
[INFO] [stderr]     Checking generic_data_types v0.1.0 (/opt/rustwide/workdir/Recoverable and Unrecoverable Errors/Error Handling/Generic Data Types)
[INFO] [stderr]     Checking differences_between_variables_and_constants v0.1.0 (/opt/rustwide/workdir/Common Programming Concepts/Variables/Differences Between Variables and Constants)
[INFO] [stderr]     Checking matching_result_2 v0.1.0 (/opt/rustwide/workdir/Recoverable and Unrecoverable Errors/Error Handling/Matching Result 2)
[INFO] [stderr]     Checking variables3 v0.1.0 (/opt/rustwide/workdir/Common Programming Concepts/Variables/Variables 3)
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]  --> Iterators and Closures/Standard Library Types/Factorial/src/lib.rs:1:31
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn factorial(num: u64) -> u64 {
[INFO] [stdout]   |        ---------              ^^^ expected `u64`, found `()`
[INFO] [stdout]   |        |
[INFO] [stdout]   |        implicitly returns `()` as its body has no tail or `return` expression
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected identifier, found `?`
[INFO] [stdout]  --> Recoverable and Unrecoverable Errors/Error Handling/Multiple Errors/src/lib.rs:6:82
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub fn read_and_validate(b: &mut io::BufRead) -> Result<PositiveNonzeroInteger, ???> {
[INFO] [stdout]   |                                                                                  ^ expected identifier
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::error::Error`
[INFO] [stdout]  --> Recoverable and Unrecoverable Errors/Error Handling/Returning Result/src/lib.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::error::Error;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `errorsn` due to 2 previous errors
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] For more information about this error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::cmp::Ordering`
[INFO] [stdout]  --> Common Programming Concepts/Variables and Functions Test/Calculate Price/src/lib.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::cmp::Ordering;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `can_hold`
[INFO] [stdout]  --> Writing Automated Tests/Tests/Intro/src/lib.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 8 |     fn can_hold(&self, other: &Rectangle) -> bool {
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]  --> Common Programming Concepts/If/If Task/src/lib.rs:1:34
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn bigger(a: i32, b: i32) -> i32 {
[INFO] [stdout]   |        ------                    ^^^ expected `i32`, found `()`
[INFO] [stdout]   |        |
[INFO] [stdout]   |        implicitly returns `()` as its body has no tail or `return` expression
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected one of `:`, `;`, `=`, `@`, or `|`, found `x`
[INFO] [stdout]  --> Common Programming Concepts/Variables/Variables 3/src/main.rs:2:14
[INFO] [stdout]   |
[INFO] [stdout] 2 |     let TODO x = 3;
[INFO] [stdout]   |              ^ expected one of `:`, `;`, `=`, `@`, or `|`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find macro `my_macro` in this scope
[INFO] [stdout]   --> Modules and Macros/Macros/Outside of Module/src/main.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     my_macro!();
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: have you added the `#[macro_use]` on the module/import?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function `call_me` in this scope
[INFO] [stdout]  --> Common Programming Concepts/Functions/Intro/src/main.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 |     call_me();
[INFO] [stdout]   |     ^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected type, found `)`
[INFO] [stdout]  --> Common Programming Concepts/Functions/Type Annotation of a Parameter/src/main.rs:5:51
[INFO] [stdout]   |
[INFO] [stdout] 5 | fn call_me(num:/*insert the type annotation here*/) {
[INFO] [stdout]   |                                                   ^ expected type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected identifier, found keyword `if`
[INFO] [stdout]   --> Common Programming Concepts/Data Types/Characters/src/main.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 |     if your_character.is_alphabetic() {
[INFO] [stdout]    |     ^^ expected identifier, found keyword
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `num` in this scope
[INFO] [stdout]  --> Common Programming Concepts/Functions/Type Annotation of a Parameter/src/main.rs:6:17
[INFO] [stdout]   |
[INFO] [stdout] 6 |     for i in 0..num {
[INFO] [stdout]   |                 ^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0425`.
[INFO] [stdout] 
[INFO] [stdout] error: expected one of `:`, `;`, `=`, `@`, or `|`, found `your_character`
[INFO] [stdout]   --> Common Programming Concepts/Data Types/Characters/src/main.rs:14:8
[INFO] [stdout]    |
[INFO] [stdout] 14 |     if your_character.is_alphabetic() {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^ expected one of `:`, `;`, `=`, `@`, or `|`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected identifier, found keyword `if`
[INFO] [stdout]  --> Common Programming Concepts/Data Types/Boolean/src/main.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     if is_evening {
[INFO] [stdout]   |     ^^ expected identifier, found keyword
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected one of `:`, `;`, `=`, `@`, or `|`, found `is_evening`
[INFO] [stdout]  --> Common Programming Concepts/Data Types/Boolean/src/main.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 8 |     if is_evening {
[INFO] [stdout]   |        ^^^^^^^^^^ expected one of `:`, `;`, `=`, `@`, or `|`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected type, found `{`
[INFO] [stdout]  --> Common Programming Concepts/Functions/Return Type/src/main.rs:6:50
[INFO] [stdout]   |
[INFO] [stdout] 6 | fn sale_price(price: i32) -> /*put a type here*/ {
[INFO] [stdout]   |                                                  ^ expected type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]  --> Common Collections/Strings/String Slice/src/main.rs:3:70
[INFO] [stdout]   |
[INFO] [stdout] 3 |     if is_a_color_word(/*coerce the String into a string slice here*/word) {
[INFO] [stdout]   |                                                                      ^^^^
[INFO] [stdout]   |                                                                      |
[INFO] [stdout]   |                                                                      expected `&str`, found struct `String`
[INFO] [stdout]   |                                                                      help: consider borrowing here: `&word`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> Iterators and Closures/Standard Library Types/Iterator/src/lib.rs:15:34
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub fn divide(a: i32, b: i32) -> Result<i32, DivisionError> {
[INFO] [stdout]    |        ------                    ^^^^^^^^^^^^^^^^^^^^^^^^^^ expected enum `Result`, found `()`
[INFO] [stdout]    |        |
[INFO] [stdout]    |        implicitly returns `()` as its body has no tail or `return` expression
[INFO] [stdout]    |
[INFO] [stdout]    = note:   expected enum `Result<i32, DivisionError>`
[INFO] [stdout]            found unit type `()`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stdout] warning: unused macro definition
[INFO] [stdout]  --> Modules and Macros/Macros/Outside of Module/src/main.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | /     macro_rules! my_macro {
[INFO] [stdout] 4 | |         () => {
[INFO] [stdout] 5 | |             println!("Check out my macro!");
[INFO] [stdout] 6 | |         };
[INFO] [stdout] 7 | |     }
[INFO] [stdout]   | |_____^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_macros)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0425`.
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unexpected closing delimiter: `}`
[INFO] [stdout]  --> Common Programming Concepts/Functions/Defining a Function/src/main.rs:6:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn main() {
[INFO] [stdout]   |           - this opening brace...
[INFO] [stdout] 2 |     call_me();
[INFO] [stdout] 3 | }
[INFO] [stdout]   | - ...matches this closing brace
[INFO] [stdout] ...
[INFO] [stdout] 6 | }
[INFO] [stdout]   | ^ unexpected closing delimiter
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unexpected closing delimiter: `}`
[INFO] [stdout]  --> Common Programming Concepts/Functions/Defining a Function/src/main.rs:6:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn main() {
[INFO] [stdout]   |           - this opening brace...
[INFO] [stdout] 2 |     call_me();
[INFO] [stdout] 3 | }
[INFO] [stdout]   | - ...matches this closing brace
[INFO] [stdout] ...
[INFO] [stdout] 6 | }
[INFO] [stdout]   | ^ unexpected closing delimiter
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find macro `my_macro` in this scope
[INFO] [stdout]   --> Modules and Macros/Macros/Outside of Module/src/main.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     my_macro!();
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: have you added the `#[macro_use]` on the module/import?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused macro definition
[INFO] [stdout]  --> Modules and Macros/Macros/Outside of Module/src/main.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | /     macro_rules! my_macro {
[INFO] [stdout] 4 | |         () => {
[INFO] [stdout] 5 | |             println!("Check out my macro!");
[INFO] [stdout] 6 | |         };
[INFO] [stdout] 7 | |     }
[INFO] [stdout]   | |_____^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_macros)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `vec_0` in this scope
[INFO] [stdout]  --> Understanding Ownership/Move Semantics/Borrow/src/main.rs:8:29
[INFO] [stdout]   |
[INFO] [stdout] 8 |     let mut vec1 = fill_vec(vec_0 /*and put it here*/);
[INFO] [stdout]   |                             ^^^^^ help: a local variable with a similar name exists: `vec0`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `BorrowMut`, `Borrow`
[INFO] [stdout]  --> Understanding Ownership/Move Semantics/Borrow/src/main.rs:1:19
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::borrow::{Borrow, BorrowMut};
[INFO] [stdout]   |                   ^^^^^^  ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0425`.
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]  --> Common Programming Concepts/Functions/Return a Value/src/main.rs:6:24
[INFO] [stdout]   |
[INFO] [stdout] 6 | fn square(num: i32) -> i32 {
[INFO] [stdout]   |    ------              ^^^ expected `i32`, found `()`
[INFO] [stdout]   |    |
[INFO] [stdout]   |    implicitly returns `()` as its body has no tail or `return` expression
[INFO] [stdout] 7 |     /*you could type here*/ num * num;
[INFO] [stdout]   |                                      - help: consider removing this semicolon
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stdout] error: mismatched closing delimiter: `}`
[INFO] [stdout]  --> Common Collections/Strings/Returning a String/src/main.rs:7:45
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub fn current_favorite_color() -> String {
[INFO] [stdout]   |                                           - closing delimiter possibly meant for this
[INFO] [stdout] 7 |     /*type the beginning of the trait here*/("blue"/*and the last part here*/
[INFO] [stdout]   |                                             ^ unclosed delimiter
[INFO] [stdout] 8 | }
[INFO] [stdout]   | ^ mismatched closing delimiter
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected expression, found keyword `type`
[INFO] [stdout]  --> Common Programming Concepts/Data Types/Arrays/src/main.rs:2:13
[INFO] [stdout]   |
[INFO] [stdout] 2 |     let a = type here;
[INFO] [stdout]   |             ^^^^ expected expression
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::cmp::Ordering`
[INFO] [stdout]  --> Recoverable and Unrecoverable Errors/Error Handling/Result/src/lib.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::cmp::Ordering;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]  --> Common Programming Concepts/Variables/Variables 2/src/main.rs:2:9
[INFO] [stdout]   |
[INFO] [stdout] 2 |     let x/*insert here missing part(s)*/;
[INFO] [stdout]   |         ^ consider giving `x` a type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0282`.
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]  --> Common Collections/Strings/Returning a String/src/main.rs:7:45
[INFO] [stdout]   |
[INFO] [stdout] 7 |       /*type the beginning of the trait here*/("blue"/*and the last part here*/
[INFO] [stdout]   |  _____________________________________________^
[INFO] [stdout] 8 | | }
[INFO] [stdout]   | |_^ help: remove these parentheses
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]  --> Common Programming Concepts/If/If Task/src/lib.rs:1:34
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn bigger(a: i32, b: i32) -> i32 {
[INFO] [stdout]   |        ------                    ^^^ expected `i32`, found `()`
[INFO] [stdout]   |        |
[INFO] [stdout]   |        implicitly returns `()` as its body has no tail or `return` expression
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected expression, found keyword `type`
[INFO] [stdout]  --> Common Programming Concepts/Data Types/Arrays/src/main.rs:2:13
[INFO] [stdout]   |
[INFO] [stdout] 2 |     let a = type here;
[INFO] [stdout]   |             ^^^^ expected expression
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0384]: cannot assign twice to immutable variable `x`
[INFO] [stdout]  --> Common Programming Concepts/Variables/Variables and Mutability/src/main.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 2 |     let x = 5;
[INFO] [stdout]   |         -
[INFO] [stdout]   |         |
[INFO] [stdout]   |         first assignment to `x`
[INFO] [stdout]   |         help: consider making this binding mutable: `mut x`
[INFO] [stdout] 3 |     println!("The value of x is: {}", x);
[INFO] [stdout] 4 |     x = 6;
[INFO] [stdout]   |     ^^^^^ cannot assign twice to immutable variable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]  --> Common Collections/Strings/Returning a String/src/main.rs:7:45
[INFO] [stdout]   |
[INFO] [stdout] 6 |   pub fn current_favorite_color() -> String {
[INFO] [stdout]   |                                      ------ expected `String` because of return type
[INFO] [stdout] 7 |       /*type the beginning of the trait here*/("blue"/*and the last part here*/
[INFO] [stdout]   |  _____________________________________________^
[INFO] [stdout] 8 | | }
[INFO] [stdout]   | | ^- help: try using a conversion method: `.to_string()`
[INFO] [stdout]   | |_|
[INFO] [stdout]   |   expected struct `String`, found `&str`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0384`.
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stdout] error: expected identifier, found `?`
[INFO] [stdout]  --> Recoverable and Unrecoverable Errors/Error Handling/Multiple Errors/src/lib.rs:6:82
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub fn read_and_validate(b: &mut io::BufRead) -> Result<PositiveNonzeroInteger, ???> {
[INFO] [stdout]   |                                                                                  ^ expected identifier
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected type, found `{`
[INFO] [stdout]  --> Common Programming Concepts/Functions/Return Type/src/main.rs:6:50
[INFO] [stdout]   |
[INFO] [stdout] 6 | fn sale_price(price: i32) -> /*put a type here*/ {
[INFO] [stdout]   |                                                  ^ expected type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `x` in this scope
[INFO] [stdout]  --> Common Programming Concepts/Variables/Variables 4/src/main.rs:3:27
[INFO] [stdout]   |
[INFO] [stdout] 3 |     println!("Number {}", x);
[INFO] [stdout]   |                           ^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0425`.
[INFO] [stdout] 
[INFO] [stdout] error[E0369]: cannot multiply `Result<i32, ParseIntError>` by `{integer}`
[INFO] [stdout]  --> Recoverable and Unrecoverable Errors/Error Handling/Matching Result/src/lib.rs:8:12
[INFO] [stdout]   |
[INFO] [stdout] 8 |     Ok(qty * cost_per_item + processing_fee)
[INFO] [stdout]   |        --- ^ ------------- {integer}
[INFO] [stdout]   |        |
[INFO] [stdout]   |        Result<i32, ParseIntError>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0369`.
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::cmp::Ordering`
[INFO] [stdout]  --> Common Programming Concepts/Variables and Functions Test/Calculate Price/src/lib.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::cmp::Ordering;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: macro requires a boolean expression as an argument
[INFO] [stdout]  --> Writing Automated Tests/Tests/Assert/src/lib.rs:5:9
[INFO] [stdout]   |
[INFO] [stdout] 5 |         assert!(/**/);
[INFO] [stdout]   |         ^^^^^^^^^^^^^^ boolean expression required
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find macro `my_macro` in this scope
[INFO] [stdout]  --> Modules and Macros/Macros and Modules Test/Test Task/src/main.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 |     if my_macro!("world!") != "Hello world!" {
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unexpected end of macro invocation
[INFO] [stdout]  --> Writing Automated Tests/Tests/Assert_Eq/src/lib.rs:5:9
[INFO] [stdout]   |
[INFO] [stdout] 5 |         assert_eq!(/*insert a correct assertion to pass the task*/);
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ missing tokens in macro arguments
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]  --> Common Programming Concepts/Variables/Variables 2/src/main.rs:2:9
[INFO] [stdout]   |
[INFO] [stdout] 2 |     let x/*insert here missing part(s)*/;
[INFO] [stdout]   |         ^ consider giving `x` a type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0282`.
[INFO] [stdout] 
[INFO] [stdout] error: cannot find macro `my_macro` in this scope
[INFO] [stdout]  --> Modules and Macros/Macros/Declaring a Macro/src/main.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 |     my_macro!();
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = help: have you added the `#[macro_use]` on the module/import?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `TODO` in this scope
[INFO] [stdout]  --> Common Programming Concepts/Functions/Passing an Argument/src/main.rs:2:13
[INFO] [stdout]   |
[INFO] [stdout] 2 |     call_me(TODO);
[INFO] [stdout]   |             ^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused macro definition
[INFO] [stdout]  --> Modules and Macros/Macros/Declaring a Macro/src/main.rs:5:1
[INFO] [stdout]   |
[INFO] [stdout] 5 | / macro_rules! my_macro {
[INFO] [stdout] 6 | |     () => {
[INFO] [stdout] 7 | |         println!("Check out my macro!");
[INFO] [stdout] 8 | |     };
[INFO] [stdout] 9 | | }
[INFO] [stdout]   | |_^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_macros)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]  --> Common Collections/Strings/String Slice/src/main.rs:3:70
[INFO] [stdout]   |
[INFO] [stdout] 3 |     if is_a_color_word(/*coerce the String into a string slice here*/word) {
[INFO] [stdout]   |                                                                      ^^^^
[INFO] [stdout]   |                                                                      |
[INFO] [stdout]   |                                                                      expected `&str`, found struct `String`
[INFO] [stdout]   |                                                                      help: consider borrowing here: `&word`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0425`.
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::cmp::Ordering`
[INFO] [stdout]  --> Recoverable and Unrecoverable Errors/Error Handling/Result/src/lib.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::cmp::Ordering;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected identifier, found keyword `if`
[INFO] [stdout]   --> Common Programming Concepts/Data Types/Characters/src/main.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 |     if your_character.is_alphabetic() {
[INFO] [stdout]    |     ^^ expected identifier, found keyword
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected one of `:`, `;`, `=`, `@`, or `|`, found `your_character`
[INFO] [stdout]   --> Common Programming Concepts/Data Types/Characters/src/main.rs:14:8
[INFO] [stdout]    |
[INFO] [stdout] 14 |     if your_character.is_alphabetic() {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^ expected one of `:`, `;`, `=`, `@`, or `|`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: no rules expected the token `(`
[INFO] [stdout]  --> Modules and Macros/Macros/Macro Arms/src/main.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 |     ($val:expr) => {
[INFO] [stdout]   |     ^ no rules expected this token in macro call
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected type, found `)`
[INFO] [stdout]  --> Common Programming Concepts/Functions/Type Annotation of a Parameter/src/main.rs:5:51
[INFO] [stdout]   |
[INFO] [stdout] 5 | fn call_me(num:/*insert the type annotation here*/) {
[INFO] [stdout]   |                                                   ^ expected type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function `my_macro` in this scope
[INFO] [stdout]  --> Modules and Macros/Macros/Calling a Macro/src/main.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     my_macro/*call the macro here*/();
[INFO] [stdout]   |     ^^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused macro definition
[INFO] [stdout]  --> Modules and Macros/Macros/Calling a Macro/src/main.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | / macro_rules! my_macro {
[INFO] [stdout] 2 | |     () => {
[INFO] [stdout] 3 | |         println!("Check out my macro!");
[INFO] [stdout] 4 | |     };
[INFO] [stdout] 5 | | }
[INFO] [stdout]   | |_^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_macros)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0425`.
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]  --> Common Programming Concepts/Functions/Return a Value/src/main.rs:6:24
[INFO] [stdout]   |
[INFO] [stdout] 6 | fn square(num: i32) -> i32 {
[INFO] [stdout]   |    ------              ^^^ expected `i32`, found `()`
[INFO] [stdout]   |    |
[INFO] [stdout]   |    implicitly returns `()` as its body has no tail or `return` expression
[INFO] [stdout] 7 |     /*you could type here*/ num * num;
[INFO] [stdout]   |                                      - help: consider removing this semicolon
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[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]  --> Iterators and Closures/Standard Library Types/Factorial/src/lib.rs:1:31
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn factorial(num: u64) -> u64 {
[INFO] [stdout]   |        ---------              ^^^ expected `u64`, found `()`
[INFO] [stdout]   |        |
[INFO] [stdout]   |        implicitly returns `()` as its body has no tail or `return` expression
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function `call_me` in this scope
[INFO] [stdout]  --> Common Programming Concepts/Functions/Intro/src/main.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 |     call_me();
[INFO] [stdout]   |     ^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0425`.
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `num` in this scope
[INFO] [stdout]  --> Common Programming Concepts/Functions/Type Annotation of a Parameter/src/main.rs:6:17
[INFO] [stdout]   |
[INFO] [stdout] 6 |     for i in 0..num {
[INFO] [stdout]   |                 ^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0425`.
[INFO] [stdout] 
[INFO] [stdout] error: mismatched closing delimiter: `}`
[INFO] [stdout]  --> Common Collections/Strings/Returning a String/src/main.rs:7:45
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub fn current_favorite_color() -> String {
[INFO] [stdout]   |                                           - closing delimiter possibly meant for this
[INFO] [stdout] 7 |     /*type the beginning of the trait here*/("blue"/*and the last part here*/
[INFO] [stdout]   |                                             ^ unclosed delimiter
[INFO] [stdout] 8 | }
[INFO] [stdout]   | ^ mismatched closing delimiter
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]  --> Common Collections/Strings/Returning a String/src/main.rs:7:45
[INFO] [stdout]   |
[INFO] [stdout] 7 |       /*type the beginning of the trait here*/("blue"/*and the last part here*/
[INFO] [stdout]   |  _____________________________________________^
[INFO] [stdout] 8 | | }
[INFO] [stdout]   | |_^ help: remove these parentheses
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `TODO` in this scope
[INFO] [stdout]  --> Common Programming Concepts/Functions/Passing an Argument/src/main.rs:2:13
[INFO] [stdout]   |
[INFO] [stdout] 2 |     call_me(TODO);
[INFO] [stdout]   |             ^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `x` in this scope
[INFO] [stdout]   --> Iterators and Closures/Standard Library Types/Iterator/src/lib.rs:30:36
[INFO] [stdout]    |
[INFO] [stdout] 30 |         assert_eq!(format!("{:?}", x), "Ok([1, 11, 1426, 3])");
[INFO] [stdout]    |                                    ^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `x` in this scope
[INFO] [stdout]   --> Iterators and Closures/Standard Library Types/Iterator/src/lib.rs:37:36
[INFO] [stdout]    |
[INFO] [stdout] 37 |         assert_eq!(format!("{:?}", x), "[Ok(1), Ok(11), Ok(1426), Ok(3)]");
[INFO] [stdout]    |                                    ^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `x` in this scope
[INFO] [stdout]  --> Common Programming Concepts/Variables/Variables 4/src/main.rs:3:27
[INFO] [stdout]   |
[INFO] [stdout] 3 |     println!("Number {}", x);
[INFO] [stdout]   |                           ^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]  --> Common Collections/Strings/Returning a String/src/main.rs:7:45
[INFO] [stdout]   |
[INFO] [stdout] 6 |   pub fn current_favorite_color() -> String {
[INFO] [stdout]   |                                      ------ expected `String` because of return type
[INFO] [stdout] 7 |       /*type the beginning of the trait here*/("blue"/*and the last part here*/
[INFO] [stdout]   |  _____________________________________________^
[INFO] [stdout] 8 | | }
[INFO] [stdout]   | | ^- help: try using a conversion method: `.to_string()`
[INFO] [stdout]   | |_|
[INFO] [stdout]   |   expected struct `String`, found `&str`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0425`.
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0425`.
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> Iterators and Closures/Standard Library Types/Iterator/src/lib.rs:15:34
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub fn divide(a: i32, b: i32) -> Result<i32, DivisionError> {
[INFO] [stdout]    |        ------                    ^^^^^^^^^^^^^^^^^^^^^^^^^^ expected enum `Result`, found `()`
[INFO] [stdout]    |        |
[INFO] [stdout]    |        implicitly returns `()` as its body has no tail or `return` expression
[INFO] [stdout]    |
[INFO] [stdout]    = note:   expected enum `Result<i32, DivisionError>`
[INFO] [stdout]            found unit type `()`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0308, E0425.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stdout] error[E0369]: cannot multiply `Result<i32, ParseIntError>` by `{integer}`
[INFO] [stdout]  --> Recoverable and Unrecoverable Errors/Error Handling/Matching Result/src/lib.rs:8:12
[INFO] [stdout]   |
[INFO] [stdout] 8 |     Ok(qty * cost_per_item + processing_fee)
[INFO] [stdout]   |        --- ^ ------------- {integer}
[INFO] [stdout]   |        |
[INFO] [stdout]   |        Result<i32, ParseIntError>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0369`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "2a1811c08e824004d53ece77b1d1a5d7ef21cb0f3f87520631e833a0395095d5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2a1811c08e824004d53ece77b1d1a5d7ef21cb0f3f87520631e833a0395095d5", kill_on_drop: false }`
[INFO] [stdout] 2a1811c08e824004d53ece77b1d1a5d7ef21cb0f3f87520631e833a0395095d5
