[INFO] cloning repository https://github.com/km-tr/rustlings
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/km-tr/rustlings" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkm-tr%2Frustlings", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkm-tr%2Frustlings'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 965bd57ff9b3f6c6e9cd16f6e5f779de68ce1f5f
[INFO] documenting km-tr/rustlings against 1.54.0 for beta-1.55-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkm-tr%2Frustlings" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/km-tr/rustlings on toolchain 1.54.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/km-tr/rustlings
[INFO] finished tweaking git repo https://github.com/km-tr/rustlings
[INFO] tweaked toml for git repo https://github.com/km-tr/rustlings written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+1.54.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d94dc27dfdaed1c0a87d4eeb37f13c7ac5be15c3e7ac67cda614272a956e4115
[INFO] running `Command { std: "docker" "start" "-a" "d94dc27dfdaed1c0a87d4eeb37f13c7ac5be15c3e7ac67cda614272a956e4115", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d94dc27dfdaed1c0a87d4eeb37f13c7ac5be15c3e7ac67cda614272a956e4115", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d94dc27dfdaed1c0a87d4eeb37f13c7ac5be15c3e7ac67cda614272a956e4115", kill_on_drop: false }`
[INFO] [stdout] d94dc27dfdaed1c0a87d4eeb37f13c7ac5be15c3e7ac67cda614272a956e4115
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "RUSTDOCFLAGS=--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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7917a4c6728ba63d1d658c010904a7944137b52441926b01388fabac4380a13f
[INFO] running `Command { std: "docker" "start" "-a" "7917a4c6728ba63d1d658c010904a7944137b52441926b01388fabac4380a13f", kill_on_drop: false }`
[INFO] [stderr]    Compiling escargot v0.5.2
[INFO] [stderr]  Documenting macros_intro v0.1.0 (/opt/rustwide/workdir/Modules and Macros/Macros/Intro)
[INFO] [stderr]  Documenting macros2 v0.1.0 (/opt/rustwide/workdir/Modules and Macros/Macros/Declaring a Macro)
[INFO] [stderr]  Documenting shadowing v0.1.0 (/opt/rustwide/workdir/Common Programming Concepts/Variables/Shadowing)
[INFO] [stderr]  Documenting variables_intro v0.1.0 (/opt/rustwide/workdir/Common Programming Concepts/Variables/Intro)
[INFO] [stderr]  Documenting extensible_concurrency_with_the_sync_and_send_traits v0.1.0 (/opt/rustwide/workdir/Fearless Concurrency/Threads/Extensible Concurrency with the Sync and Send Traits)
[INFO] [stderr]  Documenting variables1 v0.1.0 (/opt/rustwide/workdir/Common Programming Concepts/Variables/Variables 1)
[INFO] [stderr]  Documenting returning_result v0.1.0 (/opt/rustwide/workdir/Recoverable and Unrecoverable Errors/Error Handling/Returning Result)
[INFO] [stderr]  Documenting type_annotation_of_a_parameter v0.1.0 (/opt/rustwide/workdir/Common Programming Concepts/Functions/Type Annotation of a Parameter)
[INFO] [stderr]  Documenting differences_between_variables_and_constants v0.1.0 (/opt/rustwide/workdir/Common Programming Concepts/Variables/Differences Between Variables and Constants)
[INFO] [stderr]  Documenting string_slice v0.1.0 (/opt/rustwide/workdir/Common Collections/Strings/String Slice)
[INFO] [stderr]  Documenting arrays v0.1.0 (/opt/rustwide/workdir/Common Programming Concepts/Data Types/Arrays)
[INFO] [stderr]  Documenting references_and_borrowing v0.1.0 (/opt/rustwide/workdir/Understanding Ownership/Move Semantics/References and Borrowing)
[INFO] [stderr]  Documenting threads_intro v0.1.0 (/opt/rustwide/workdir/Fearless Concurrency/Threads/Intro)
[INFO] [stderr]  Documenting passing_an_argument v0.1.0 (/opt/rustwide/workdir/Common Programming Concepts/Functions/Passing an Argument)
[INFO] [stderr]  Documenting modules_intro v0.1.0 (/opt/rustwide/workdir/Modules and Macros/Modules/Intro)
[INFO] [stderr]  Documenting 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]  Documenting functions_intro v0.1.0 (/opt/rustwide/workdir/Common Programming Concepts/Functions/Intro)
[INFO] [stderr]  Documenting installation v0.1.0 (/opt/rustwide/workdir/Introduction/Getting started/Installation)
[INFO] [stderr]  Documenting tests_intro v0.1.0 (/opt/rustwide/workdir/Writing Automated Tests/Tests/Intro)
[INFO] [stderr]  Documenting scalar_types v0.1.0 (/opt/rustwide/workdir/Common Programming Concepts/Data Types/Scalar Types)
[INFO] [stderr]  Documenting returning_a_string v0.1.0 (/opt/rustwide/workdir/Common Collections/Strings/Returning a String)
[INFO] [stderr]  Documenting matching_result_2 v0.1.0 (/opt/rustwide/workdir/Recoverable and Unrecoverable Errors/Error Handling/Matching Result 2)
[INFO] [stderr]  Documenting if_task v0.1.0 (/opt/rustwide/workdir/Common Programming Concepts/If/If Task)
[INFO] [stderr]  Documenting compound_types v0.1.0 (/opt/rustwide/workdir/Common Programming Concepts/Data Types/Compound Types)
[INFO] [stderr]  Documenting about v0.1.0 (/opt/rustwide/workdir/Introduction/Getting started/About)
[INFO] [stderr]  Documenting borrow v0.1.0 (/opt/rustwide/workdir/Understanding Ownership/Move Semantics/Borrow)
[INFO] [stderr]  Documenting variables_and_mutability v0.1.0 (/opt/rustwide/workdir/Common Programming Concepts/Variables/Variables and Mutability)
[INFO] [stderr]  Documenting strings_intro v0.1.0 (/opt/rustwide/workdir/Common Collections/Strings/Intro)
[INFO] [stderr]  Documenting macro_test v0.1.0 (/opt/rustwide/workdir/Modules and Macros/Macros and Modules Test/Test Task)
[INFO] [stderr]  Documenting iterator3 v0.1.0 (/opt/rustwide/workdir/Iterators and Closures/Standard Library Types/Iterator)
[INFO] [stderr]  Documenting generic_data_types v0.1.0 (/opt/rustwide/workdir/Recoverable and Unrecoverable Errors/Error Handling/Generic Data Types)
[INFO] [stdout] error: expected one of `.`, `?`, `{`, or an operator, found `;`
[INFO] [stdout]  --> Recoverable and Unrecoverable Errors/Error Handling/Matching Result 2/src/main.rs:7:53
[INFO] [stdout]   |
[INFO] [stdout] 7 |     let cost = match total_cost(pretend_user_input)?;
[INFO] [stdout]   |                -----                                ^ expected one of `.`, `?`, `{`, or an operator
[INFO] [stdout]   |                |
[INFO] [stdout]   |                while parsing this match expression
[INFO] [stdout]   |                help: try removing this `match`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Compilation failed, aborting rustdoc
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not document `matching_result_2`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name matching_result_2 'Recoverable and Unrecoverable Errors/Error Handling/Matching Result 2/src/main.rs' -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi --document-private-items -L dependency=/opt/rustwide/target/debug/deps --cap-lints=warn --crate-version 0.1.0` (exit status: 1)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[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] error: Compilation failed, aborting rustdoc
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[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: Compilation failed, aborting rustdoc
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[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] error: Compilation failed, aborting rustdoc
[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] error: Compilation failed, aborting rustdoc
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[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: Compilation failed, aborting rustdoc
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "7917a4c6728ba63d1d658c010904a7944137b52441926b01388fabac4380a13f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7917a4c6728ba63d1d658c010904a7944137b52441926b01388fabac4380a13f", kill_on_drop: false }`
[INFO] [stdout] 7917a4c6728ba63d1d658c010904a7944137b52441926b01388fabac4380a13f
