[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 try#ecabaf78506b7a4668d42dc20268c086b93f0fad for pr-87041 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fryanthegentry%2FRustlings" "/workspace/builds/worker-0/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/ryanthegentry/Rustlings on toolchain ecabaf78506b7a4668d42dc20268c086b93f0fad [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "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-0/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" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded escargot v0.5.0 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 211f2149d37a1fa23e375416449d7f2f1e86fd8a4bde671e8ee12472716130ec [INFO] running `Command { std: "docker" "start" "-a" "211f2149d37a1fa23e375416449d7f2f1e86fd8a4bde671e8ee12472716130ec", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "211f2149d37a1fa23e375416449d7f2f1e86fd8a4bde671e8ee12472716130ec", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "211f2149d37a1fa23e375416449d7f2f1e86fd8a4bde671e8ee12472716130ec", kill_on_drop: false }` [INFO] [stdout] 211f2149d37a1fa23e375416449d7f2f1e86fd8a4bde671e8ee12472716130ec [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 2bd5f444c4bd23c47b5db14ac60ff007e7e66bd90036b992f4a90f92367b8e14 [INFO] running `Command { std: "docker" "start" "-a" "2bd5f444c4bd23c47b5db14ac60ff007e7e66bd90036b992f4a90f92367b8e14", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.10 [INFO] [stderr] Compiling unicode-xid v0.2.0 [INFO] [stderr] Compiling syn v1.0.17 [INFO] [stderr] Compiling serde v1.0.106 [INFO] [stderr] Compiling ryu v1.0.3 [INFO] [stderr] Compiling escargot v0.5.0 [INFO] [stderr] Compiling cfg-if v0.1.10 [INFO] [stderr] Compiling lazy_static v1.4.0 [INFO] [stderr] Compiling tests_intro v0.1.0 (/opt/rustwide/workdir/Writing Automated Tests/Tests/Intro) [INFO] [stderr] Compiling iterator3 v0.1.0 (/opt/rustwide/workdir/Iterators and Closures/Standard Library Types/Iterator) [INFO] [stderr] Compiling returning_result v0.1.0 (/opt/rustwide/workdir/Recoverable and Unrecoverable Errors/Error Handling/Returning Result) [INFO] [stderr] Compiling if_intro v0.1.0 (/opt/rustwide/workdir/Common Programming Concepts/If/Intro) [INFO] [stderr] Compiling variables_intro v0.1.0 (/opt/rustwide/workdir/Common Programming Concepts/Variables/Intro) [INFO] [stderr] Compiling macros3 v0.1.0 (/opt/rustwide/workdir/Modules and Macros/Macros/Outside of Module) [INFO] [stderr] Compiling threads_intro v0.1.0 (/opt/rustwide/workdir/Fearless Concurrency/Threads/Intro) [INFO] [stderr] Compiling variables2 v0.1.0 (/opt/rustwide/workdir/Common Programming Concepts/Variables/Variables 2) [INFO] [stderr] Compiling assert_eq v0.1.0 (/opt/rustwide/workdir/Writing Automated Tests/Tests/Assert_Eq) [INFO] [stderr] Compiling strings_intro v0.1.0 (/opt/rustwide/workdir/Common Collections/Strings/Intro) [INFO] [stderr] Compiling adding_custom_failure_messages v0.1.0 (/opt/rustwide/workdir/Writing Automated Tests/Tests/Adding Custom Failure Messages) [INFO] [stderr] Compiling separating_modules_into_different_files v0.1.0 (/opt/rustwide/workdir/Modules and Macros/Modules/Separating Modules into Different Files) [INFO] [stderr] Compiling returning_a_string v0.1.0 (/opt/rustwide/workdir/Common Collections/Strings/Returning a String) [INFO] [stderr] Compiling return_a_value v0.1.0 (/opt/rustwide/workdir/Common Programming Concepts/Functions/Return a Value) [INFO] [stderr] Compiling macros2 v0.1.0 (/opt/rustwide/workdir/Modules and Macros/Macros/Declaring a Macro) [INFO] [stderr] Compiling compound_types v0.1.0 (/opt/rustwide/workdir/Common Programming Concepts/Data Types/Compound Types) [INFO] [stderr] Compiling arrays v0.1.0 (/opt/rustwide/workdir/Common Programming Concepts/Data Types/Arrays) [INFO] [stderr] Compiling macros_intro v0.1.0 (/opt/rustwide/workdir/Modules and Macros/Macros/Intro) [INFO] [stderr] Compiling result1 v0.1.0 (/opt/rustwide/workdir/Recoverable and Unrecoverable Errors/Error Handling/Result) [INFO] [stderr] Compiling if_task v0.1.0 (/opt/rustwide/workdir/Common Programming Concepts/If/If Task) [INFO] [stderr] Compiling passing_an_argument v0.1.0 (/opt/rustwide/workdir/Common Programming Concepts/Functions/Passing an Argument) [INFO] [stderr] Compiling generic_data_types v0.1.0 (/opt/rustwide/workdir/Recoverable and Unrecoverable Errors/Error Handling/Generic Data Types) [INFO] [stderr] Compiling differences_between_variables_and_constants v0.1.0 (/opt/rustwide/workdir/Common Programming Concepts/Variables/Differences Between Variables and Constants) [INFO] [stderr] Compiling defining_a_function v0.1.0 (/opt/rustwide/workdir/Common Programming Concepts/Functions/Defining a Function) [INFO] [stdout] error: mismatched closing delimiter: `}` [INFO] [stdout] --> Common Collections/Strings/Returning a String/src/main.rs:8:1 [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: 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] 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: 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] 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: aborting due to previous error; 1 warning emitted [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] [stderr] error: could not compile `macros2` [INFO] [stderr] [INFO] [stderr] To learn more, run the command again with --verbose. [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [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 { [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` [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] 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] 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: 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[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] | |_^ expected struct `String`, found `&str` [INFO] [stdout] | [INFO] [stdout] help: try using a conversion method [INFO] [stdout] | [INFO] [stdout] 7 | /*type the beginning of the trait here*/("blue"/*and the last part here*/ [INFO] [stdout] 8 | }.to_string() [INFO] [stdout] | [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[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: 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: 1 warning emitted [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[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: 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: 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: 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] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: build failed [INFO] running `Command { std: "docker" "inspect" "2bd5f444c4bd23c47b5db14ac60ff007e7e66bd90036b992f4a90f92367b8e14", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "2bd5f444c4bd23c47b5db14ac60ff007e7e66bd90036b992f4a90f92367b8e14", kill_on_drop: false }` [INFO] [stdout] 2bd5f444c4bd23c47b5db14ac60ff007e7e66bd90036b992f4a90f92367b8e14