[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 beta-2021-08-01 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-13/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-13/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/km-tr/rustlings on toolchain beta-2021-08-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "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-13/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded escargot v0.5.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "+beta-2021-08-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5c6ad5ec0a41e1892cf480c2b40adb9605f52375d734fe8b4ffeefb75de424d1
[INFO] running `Command { std: "docker" "start" "-a" "5c6ad5ec0a41e1892cf480c2b40adb9605f52375d734fe8b4ffeefb75de424d1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5c6ad5ec0a41e1892cf480c2b40adb9605f52375d734fe8b4ffeefb75de424d1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5c6ad5ec0a41e1892cf480c2b40adb9605f52375d734fe8b4ffeefb75de424d1", kill_on_drop: false }`
[INFO] [stdout] 5c6ad5ec0a41e1892cf480c2b40adb9605f52375d734fe8b4ffeefb75de424d1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "+beta-2021-08-01" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3b0c0d247f876340328a8cb652a0b026351d18bb1f9e34c5d7defbc0330e8cb0
[INFO] running `Command { std: "docker" "start" "-a" "3b0c0d247f876340328a8cb652a0b026351d18bb1f9e34c5d7defbc0330e8cb0", kill_on_drop: false }`
[INFO] [stderr]    Compiling escargot v0.5.2
[INFO] [stderr]  Documenting calling_a_macro v0.1.0 (/opt/rustwide/workdir/Modules and Macros/Macros/Calling a Macro)
[INFO] [stderr]  Documenting matching_result_2 v0.1.0 (/opt/rustwide/workdir/Recoverable and Unrecoverable Errors/Error Handling/Matching Result 2)
[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 tests_intro v0.1.0 (/opt/rustwide/workdir/Writing Automated Tests/Tests/Intro)
[INFO] [stderr]  Documenting stdlib_intro v0.1.0 (/opt/rustwide/workdir/Iterators and Closures/Standard Library Types/Intro)
[INFO] [stderr]  Documenting return_a_value v0.1.0 (/opt/rustwide/workdir/Common Programming Concepts/Functions/Return a Value)
[INFO] [stderr]  Documenting modules_intro v0.1.0 (/opt/rustwide/workdir/Modules and Macros/Modules/Intro)
[INFO] [stderr]  Documenting macro_arms v0.1.0 (/opt/rustwide/workdir/Modules and Macros/Macros/Macro Arms)
[INFO] [stderr]  Documenting bringing_paths_into_scope_with_the_use_keyword v0.1.0 (/opt/rustwide/workdir/Modules and Macros/Modules/Bringing Paths into Scope with the use Keyword)
[INFO] [stderr]  Documenting iterators4 v0.1.0 (/opt/rustwide/workdir/Iterators and Closures/Standard Library Types/Factorial)
[INFO] [stderr]  Documenting compound_types v0.1.0 (/opt/rustwide/workdir/Common Programming Concepts/Data Types/Compound Types)
[INFO] [stderr]  Documenting variables4 v0.1.0 (/opt/rustwide/workdir/Common Programming Concepts/Variables/Variables 4)
[INFO] [stderr]  Documenting adding_custom_failure_messages v0.1.0 (/opt/rustwide/workdir/Writing Automated Tests/Tests/Adding Custom Failure Messages)
[INFO] [stderr]  Documenting repetition_with_loops v0.1.0 (/opt/rustwide/workdir/Common Programming Concepts/If/Repetition with Loops)
[INFO] [stderr]  Documenting functions_intro v0.1.0 (/opt/rustwide/workdir/Common Programming Concepts/Functions/Intro)
[INFO] [stderr]  Documenting errorsn v0.1.0 (/opt/rustwide/workdir/Recoverable and Unrecoverable Errors/Error Handling/Multiple Errors)
[INFO] [stderr]  Documenting macros3 v0.1.0 (/opt/rustwide/workdir/Modules and Macros/Macros/Outside of Module)
[INFO] [stderr]  Documenting variables_intro v0.1.0 (/opt/rustwide/workdir/Common Programming Concepts/Variables/Intro)
[INFO] [stderr]  Documenting variables_and_mutability v0.1.0 (/opt/rustwide/workdir/Common Programming Concepts/Variables/Variables and Mutability)
[INFO] [stderr]  Documenting times_two_tests v0.1.0 (/opt/rustwide/workdir/Writing Automated Tests/Tests Test/Times Two Tests)
[INFO] [stderr]  Documenting statements_and_expressions v0.1.0 (/opt/rustwide/workdir/Common Programming Concepts/Functions/Statements and Expressions)
[INFO] [stderr]  Documenting move_semantics_intro v0.1.0 (/opt/rustwide/workdir/Understanding Ownership/Move Semantics/Intro)
[INFO] [stderr]  Documenting macros_intro v0.1.0 (/opt/rustwide/workdir/Modules and Macros/Macros/Intro)
[INFO] [stderr]  Documenting if_task v0.1.0 (/opt/rustwide/workdir/Common Programming Concepts/If/If Task)
[INFO] [stderr]  Documenting boolean v0.1.0 (/opt/rustwide/workdir/Common Programming Concepts/Data Types/Boolean)
[INFO] [stderr]  Documenting separating_modules_into_different_files v0.1.0 (/opt/rustwide/workdir/Modules and Macros/Modules/Separating Modules into Different Files)
[INFO] [stderr]  Documenting references_and_borrowing v0.1.0 (/opt/rustwide/workdir/Understanding Ownership/Move Semantics/References and Borrowing)
[INFO] [stderr]  Documenting returning_a_string v0.1.0 (/opt/rustwide/workdir/Common Collections/Strings/Returning a String)
[INFO] [stderr]  Documenting generic_data_types v0.1.0 (/opt/rustwide/workdir/Recoverable and Unrecoverable Errors/Error Handling/Generic Data Types)
[INFO] [stderr]  Documenting assert_eq v0.1.0 (/opt/rustwide/workdir/Writing Automated Tests/Tests/Assert_Eq)
[INFO] [stderr]  Documenting about v0.1.0 (/opt/rustwide/workdir/Introduction/Getting started/About)
[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] [stderr] error: could not document `returning_a_string`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name returning_a_string 'Common Collections/Strings/Returning a String/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: 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: 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: aborting due to previous error
[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: 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: 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/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: 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 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: Compilation failed, aborting rustdoc
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "3b0c0d247f876340328a8cb652a0b026351d18bb1f9e34c5d7defbc0330e8cb0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3b0c0d247f876340328a8cb652a0b026351d18bb1f9e34c5d7defbc0330e8cb0", kill_on_drop: false }`
[INFO] [stdout] 3b0c0d247f876340328a8cb652a0b026351d18bb1f9e34c5d7defbc0330e8cb0
