[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] testing ryanthegentry/Rustlings against 1.55.0 for beta-1.56-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fryanthegentry%2FRustlings" "/workspace/builds/worker-5/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/ryanthegentry/Rustlings on toolchain 1.55.0 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "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-5/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" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 05b0677d812d5e38209623981b5b1056104c24bf3fa62f720828dedf2e696a95 [INFO] running `Command { std: "docker" "start" "-a" "05b0677d812d5e38209623981b5b1056104c24bf3fa62f720828dedf2e696a95", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "05b0677d812d5e38209623981b5b1056104c24bf3fa62f720828dedf2e696a95", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "05b0677d812d5e38209623981b5b1056104c24bf3fa62f720828dedf2e696a95", kill_on_drop: false }` [INFO] [stdout] 05b0677d812d5e38209623981b5b1056104c24bf3fa62f720828dedf2e696a95 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 99abb61ca465d628ebc6da0fd97383299b3ae5b1ccc051401956fc9f9743d60e [INFO] running `Command { std: "docker" "start" "-a" "99abb61ca465d628ebc6da0fd97383299b3ae5b1ccc051401956fc9f9743d60e", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.10 [INFO] [stderr] Compiling syn v1.0.17 [INFO] [stderr] Compiling ryu v1.0.3 [INFO] [stderr] Compiling serde v1.0.106 [INFO] [stderr] Compiling log v0.4.8 [INFO] [stderr] Compiling itoa v0.4.5 [INFO] [stderr] Compiling escargot v0.5.0 [INFO] [stderr] Compiling tests_intro v0.1.0 (/opt/rustwide/workdir/Writing Automated Tests/Tests/Intro) [INFO] [stderr] Compiling variables_and_mutability v0.1.0 (/opt/rustwide/workdir/Common Programming Concepts/Variables/Variables and Mutability) [INFO] [stderr] Compiling variables3 v0.1.0 (/opt/rustwide/workdir/Common Programming Concepts/Variables/Variables 3) [INFO] [stderr] Compiling variables4 v0.1.0 (/opt/rustwide/workdir/Common Programming Concepts/Variables/Variables 4) [INFO] [stderr] Compiling generic_data_types v0.1.0 (/opt/rustwide/workdir/Recoverable and Unrecoverable Errors/Error Handling/Generic Data Types) [INFO] [stderr] Compiling type_annotation_of_a_parameter v0.1.0 (/opt/rustwide/workdir/Common Programming Concepts/Functions/Type Annotation of a Parameter) [INFO] [stderr] Compiling arrays v0.1.0 (/opt/rustwide/workdir/Common Programming Concepts/Data Types/Arrays) [INFO] [stderr] Compiling passing_an_argument v0.1.0 (/opt/rustwide/workdir/Common Programming Concepts/Functions/Passing an Argument) [INFO] [stderr] Compiling threads_intro v0.1.0 (/opt/rustwide/workdir/Fearless Concurrency/Threads/Intro) [INFO] [stderr] Compiling string_slice v0.1.0 (/opt/rustwide/workdir/Common Collections/Strings/String Slice) [INFO] [stderr] Compiling charcaters v0.1.0 (/opt/rustwide/workdir/Common Programming Concepts/Data Types/Characters) [INFO] [stderr] Compiling assert v0.1.0 (/opt/rustwide/workdir/Writing Automated Tests/Tests/Assert) [INFO] [stderr] Compiling paths_for_referring_to_an_item_in_the_module_tree v0.1.0 (/opt/rustwide/workdir/Modules and Macros/Modules/Paths for Referring to an Item in the Module Tree) [INFO] [stderr] Compiling boolean v0.1.0 (/opt/rustwide/workdir/Common Programming Concepts/Data Types/Boolean) [INFO] [stderr] Compiling else_if v0.1.0 (/opt/rustwide/workdir/Common Programming Concepts/If/else if) [INFO] [stderr] Compiling functions_intro v0.1.0 (/opt/rustwide/workdir/Common Programming Concepts/Functions/Intro) [INFO] [stderr] Compiling times_two_tests v0.1.0 (/opt/rustwide/workdir/Writing Automated Tests/Tests Test/Times Two Tests) [INFO] [stderr] Compiling shared_state_concurrency v0.1.0 (/opt/rustwide/workdir/Iterators and Closures/Standard Library Types/Shared-State Concurrency) [INFO] [stderr] Compiling strings_intro v0.1.0 (/opt/rustwide/workdir/Common Collections/Strings/Intro) [INFO] [stderr] Compiling scalar_types v0.1.0 (/opt/rustwide/workdir/Common Programming Concepts/Data Types/Scalar Types) [INFO] [stderr] Compiling returning_result v0.1.0 (/opt/rustwide/workdir/Recoverable and Unrecoverable Errors/Error Handling/Returning Result) [INFO] [stderr] Compiling return_type v0.1.0 (/opt/rustwide/workdir/Common Programming Concepts/Functions/Return Type) [INFO] [stderr] Compiling return_a_value v0.1.0 (/opt/rustwide/workdir/Common Programming Concepts/Functions/Return a Value) [INFO] [stderr] Compiling result1 v0.1.0 (/opt/rustwide/workdir/Recoverable and Unrecoverable Errors/Error Handling/Result) [INFO] [stderr] Compiling repetition_with_loops v0.1.0 (/opt/rustwide/workdir/Common Programming Concepts/If/Repetition with Loops) [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] [stderr] error: could not compile `string_slice` due to 2 previous errors [INFO] [stdout] For more information about this error, try `rustc --explain E0308`. [INFO] [stdout] [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [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 2 previous errors [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: 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: aborting due to 2 previous errors [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] 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 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[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 `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[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] 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] [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 `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[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: 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 E0425`. [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: 1 warning emitted [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] For more information about this error, try `rustc --explain E0384`. [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] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: build failed [INFO] running `Command { std: "docker" "inspect" "99abb61ca465d628ebc6da0fd97383299b3ae5b1ccc051401956fc9f9743d60e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "99abb61ca465d628ebc6da0fd97383299b3ae5b1ccc051401956fc9f9743d60e", kill_on_drop: false }` [INFO] [stdout] 99abb61ca465d628ebc6da0fd97383299b3ae5b1ccc051401956fc9f9743d60e