[INFO] fetching crate cowmug 0.0.1...
[INFO] documenting cowmug-0.0.1 against beta-2023-04-20 for beta-1.70-rustdoc-1
[INFO] extracting crate cowmug 0.0.1 into /workspace/builds/worker-4-tc2/source
[INFO] validating manifest of crates.io crate cowmug 0.0.1 on toolchain beta-2023-04-20
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2023-04-20" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate cowmug 0.0.1
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate cowmug 0.0.1
[INFO] tweaked toml for crates.io crate cowmug 0.0.1 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate crates.io crate cowmug 0.0.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2023-04-20" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded redox_termios v0.1.1
[INFO] [stderr]   Downloaded termion v1.5.5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-04-20" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 216d50d6bf201052bdd4fc960a35215da8999a982f1018f6165afc011b484a9c
[INFO] running `Command { std: "docker" "start" "-a" "216d50d6bf201052bdd4fc960a35215da8999a982f1018f6165afc011b484a9c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "216d50d6bf201052bdd4fc960a35215da8999a982f1018f6165afc011b484a9c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "216d50d6bf201052bdd4fc960a35215da8999a982f1018f6165afc011b484a9c", kill_on_drop: false }`
[INFO] [stdout] 216d50d6bf201052bdd4fc960a35215da8999a982f1018f6165afc011b484a9c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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" "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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-04-20" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 89a10553b9b211abffb64fd1fb966eb27d06efbd9cb99a4a6549d6bc977fe642
[INFO] running `Command { std: "docker" "start" "-a" "89a10553b9b211abffb64fd1fb966eb27d06efbd9cb99a4a6549d6bc977fe642", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.74
[INFO] [stderr]     Checking numtoa v0.1.0
[INFO] [stderr]     Checking termion v1.5.5
[INFO] [stderr]  Documenting cowmug v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: could not parse code block as Rust code
[INFO] [stdout]   --> src/question.rs:8:5
[INFO] [stdout]    |
[INFO] [stdout] 8  |   /// ```
[INFO] [stdout]    |  _____^
[INFO] [stdout] 9  | | /// let mut question = Question::new(String::from("choose a color: ");
[INFO] [stdout] 10 | | /// question.add_choice(String::from("Red"));
[INFO] [stdout] 11 | | /// question.add_choice(String::from("Blue"));
[INFO] [stdout] 12 | | /// question.add_choice(String::from("Green"));
[INFO] [stdout] 13 | | /// ```
[INFO] [stdout]    | |_______^
[INFO] [stdout]    |
[INFO] [stdout]    = note: error from rustc: this file contains an unclosed delimiter
[INFO] [stdout]    = note: `#[warn(rustdoc::invalid_rust_codeblocks)]` on by default
[INFO] [stdout] help: mark blocks that do not contain Rust code as text
[INFO] [stdout]    |
[INFO] [stdout] 8  | /// ```text
[INFO] [stdout]    |        ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: could not parse code block as Rust code
[INFO] [stdout]   --> src/question.rs:39:9
[INFO] [stdout]    |
[INFO] [stdout] 39 |       /// ```
[INFO] [stdout]    |  _________^
[INFO] [stdout] 40 | |     /// let mut question = Question::new(String::from("choose a color: ");
[INFO] [stdout] 41 | |     /// println!("{}", question.question());
[INFO] [stdout] 42 | |     /// ```
[INFO] [stdout]    | |___________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: error from rustc: this file contains an unclosed delimiter
[INFO] [stdout] help: mark blocks that do not contain Rust code as text
[INFO] [stdout]    |
[INFO] [stdout] 39 |     /// ```text
[INFO] [stdout]    |            ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: could not parse code block as Rust code
[INFO] [stdout]   --> src/question.rs:57:9
[INFO] [stdout]    |
[INFO] [stdout] 57 |       /// ```
[INFO] [stdout]    |  _________^
[INFO] [stdout] 58 | |     /// let mut list_questions: Vec<Question> = Vec::new();
[INFO] [stdout] 59 | |     /// let mut question = Question::new(String::from("choose a color: ");
[INFO] [stdout] 60 | |     /// question.add_choice(String::from("Red"));
[INFO] [stdout] ...  |
[INFO] [stdout] 66 | |     /// println!("Index chosen by the user: {}", index_answer);
[INFO] [stdout] 67 | |     /// ```
[INFO] [stdout]    | |___________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: error from rustc: this file contains an unclosed delimiter
[INFO] [stdout] help: mark blocks that do not contain Rust code as text
[INFO] [stdout]    |
[INFO] [stdout] 57 |     /// ```text
[INFO] [stdout]    |            ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: could not parse code block as Rust code
[INFO] [stdout]   --> src/question.rs:78:9
[INFO] [stdout]    |
[INFO] [stdout] 78 |       /// ```
[INFO] [stdout]    |  _________^
[INFO] [stdout] 79 | |     /// let mut list_questions: Vec<Question> = Vec::new();
[INFO] [stdout] 80 | |     /// let mut question = Question::new(String::from("choose a color: ");
[INFO] [stdout] 81 | |     /// question.add_choice(String::from("Red"));
[INFO] [stdout] ...  |
[INFO] [stdout] 87 | |     /// println!("choice from user: {}", string_answer);
[INFO] [stdout] 88 | |     /// ```
[INFO] [stdout]    | |___________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: error from rustc: this file contains an unclosed delimiter
[INFO] [stdout] help: mark blocks that do not contain Rust code as text
[INFO] [stdout]    |
[INFO] [stdout] 78 |     /// ```text
[INFO] [stdout]    |            ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: could not parse code block as Rust code
[INFO] [stdout]    --> src/question.rs:100:9
[INFO] [stdout]     |
[INFO] [stdout] 100 |       /// ```
[INFO] [stdout]     |  _________^
[INFO] [stdout] 101 | |     /// let mut question = Question::new(String::from("choose a color: ");
[INFO] [stdout] 102 | |     /// question.add_choice(String::from("Red"));
[INFO] [stdout] 103 | |     /// question.add_choice(String::from("Blue"));
[INFO] [stdout] 104 | |     /// question.add_choice(String::from("Green"));
[INFO] [stdout] 105 | |     /// ```
[INFO] [stdout]     | |___________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: error from rustc: this file contains an unclosed delimiter
[INFO] [stdout] help: mark blocks that do not contain Rust code as text
[INFO] [stdout]     |
[INFO] [stdout] 100 |     /// ```text
[INFO] [stdout]     |            ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: could not parse code block as Rust code
[INFO] [stdout]    --> src/question.rs:114:9
[INFO] [stdout]     |
[INFO] [stdout] 114 |       /// ```
[INFO] [stdout]     |  _________^
[INFO] [stdout] 115 | |     /// let mut question = Question::new(String::from("choose a color: ");
[INFO] [stdout] 116 | |     ///    let choices: Vec<String> = vec![
[INFO] [stdout] 117 | |     /// String::from("Red"),
[INFO] [stdout] ...   |
[INFO] [stdout] 121 | |     /// question.add_choices(choices);
[INFO] [stdout] 122 | |     /// ```
[INFO] [stdout]     | |___________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: error from rustc: this file contains an unclosed delimiter
[INFO] [stdout] help: mark blocks that do not contain Rust code as text
[INFO] [stdout]     |
[INFO] [stdout] 114 |     /// ```text
[INFO] [stdout]     |            ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.18s
[INFO] running `Command { std: "docker" "inspect" "89a10553b9b211abffb64fd1fb966eb27d06efbd9cb99a4a6549d6bc977fe642", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "89a10553b9b211abffb64fd1fb966eb27d06efbd9cb99a4a6549d6bc977fe642", kill_on_drop: false }`
[INFO] [stdout] 89a10553b9b211abffb64fd1fb966eb27d06efbd9cb99a4a6549d6bc977fe642
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "DOCS_RS=1" "-e" "RUSTC_BOOTSTRAP=1" "-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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-04-20" "rustdoc" "--lib" "-Zrustdoc-map" "-Z" "unstable-options" "--config" "build.rustdocflags=[\"-Z\", \"unstable-options\", \"--document-private-items\"]" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 863fccfe5e1035f84a41e63c42d10873023c331662174ff8cf91175fc9feb7ad
[INFO] running `Command { std: "docker" "start" "-a" "863fccfe5e1035f84a41e63c42d10873023c331662174ff8cf91175fc9feb7ad", kill_on_drop: false }`
[INFO] [stderr]  Documenting cowmug v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: could not parse code block as Rust code
[INFO] [stdout]   --> src/question.rs:8:5
[INFO] [stdout]    |
[INFO] [stdout] 8  |   /// ```
[INFO] [stdout]    |  _____^
[INFO] [stdout] 9  | | /// let mut question = Question::new(String::from("choose a color: ");
[INFO] [stdout] 10 | | /// question.add_choice(String::from("Red"));
[INFO] [stdout] 11 | | /// question.add_choice(String::from("Blue"));
[INFO] [stdout] 12 | | /// question.add_choice(String::from("Green"));
[INFO] [stdout] 13 | | /// ```
[INFO] [stdout]    | |_______^
[INFO] [stdout]    |
[INFO] [stdout]    = note: error from rustc: this file contains an unclosed delimiter
[INFO] [stdout]    = note: `#[warn(rustdoc::invalid_rust_codeblocks)]` on by default
[INFO] [stdout] help: mark blocks that do not contain Rust code as text
[INFO] [stdout]    |
[INFO] [stdout] 8  | /// ```text
[INFO] [stdout]    |        ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: could not parse code block as Rust code
[INFO] [stdout]   --> src/question.rs:39:9
[INFO] [stdout]    |
[INFO] [stdout] 39 |       /// ```
[INFO] [stdout]    |  _________^
[INFO] [stdout] 40 | |     /// let mut question = Question::new(String::from("choose a color: ");
[INFO] [stdout] 41 | |     /// println!("{}", question.question());
[INFO] [stdout] 42 | |     /// ```
[INFO] [stdout]    | |___________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: error from rustc: this file contains an unclosed delimiter
[INFO] [stdout] help: mark blocks that do not contain Rust code as text
[INFO] [stdout]    |
[INFO] [stdout] 39 |     /// ```text
[INFO] [stdout]    |            ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: could not parse code block as Rust code
[INFO] [stdout]   --> src/question.rs:57:9
[INFO] [stdout]    |
[INFO] [stdout] 57 |       /// ```
[INFO] [stdout]    |  _________^
[INFO] [stdout] 58 | |     /// let mut list_questions: Vec<Question> = Vec::new();
[INFO] [stdout] 59 | |     /// let mut question = Question::new(String::from("choose a color: ");
[INFO] [stdout] 60 | |     /// question.add_choice(String::from("Red"));
[INFO] [stdout] ...  |
[INFO] [stdout] 66 | |     /// println!("Index chosen by the user: {}", index_answer);
[INFO] [stdout] 67 | |     /// ```
[INFO] [stdout]    | |___________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: error from rustc: this file contains an unclosed delimiter
[INFO] [stdout] help: mark blocks that do not contain Rust code as text
[INFO] [stdout]    |
[INFO] [stdout] 57 |     /// ```text
[INFO] [stdout]    |            ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: could not parse code block as Rust code
[INFO] [stdout]   --> src/question.rs:78:9
[INFO] [stdout]    |
[INFO] [stdout] 78 |       /// ```
[INFO] [stdout]    |  _________^
[INFO] [stdout] 79 | |     /// let mut list_questions: Vec<Question> = Vec::new();
[INFO] [stdout] 80 | |     /// let mut question = Question::new(String::from("choose a color: ");
[INFO] [stdout] 81 | |     /// question.add_choice(String::from("Red"));
[INFO] [stdout] ...  |
[INFO] [stdout] 87 | |     /// println!("choice from user: {}", string_answer);
[INFO] [stdout] 88 | |     /// ```
[INFO] [stdout]    | |___________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: error from rustc: this file contains an unclosed delimiter
[INFO] [stdout] help: mark blocks that do not contain Rust code as text
[INFO] [stdout]    |
[INFO] [stdout] 78 |     /// ```text
[INFO] [stdout]    |            ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: could not parse code block as Rust code
[INFO] [stdout]    --> src/question.rs:100:9
[INFO] [stdout]     |
[INFO] [stdout] 100 |       /// ```
[INFO] [stdout]     |  _________^
[INFO] [stdout] 101 | |     /// let mut question = Question::new(String::from("choose a color: ");
[INFO] [stdout] 102 | |     /// question.add_choice(String::from("Red"));
[INFO] [stdout] 103 | |     /// question.add_choice(String::from("Blue"));
[INFO] [stdout] 104 | |     /// question.add_choice(String::from("Green"));
[INFO] [stdout] 105 | |     /// ```
[INFO] [stdout]     | |___________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: error from rustc: this file contains an unclosed delimiter
[INFO] [stdout] help: mark blocks that do not contain Rust code as text
[INFO] [stdout]     |
[INFO] [stdout] 100 |     /// ```text
[INFO] [stdout]     |            ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: could not parse code block as Rust code
[INFO] [stdout]    --> src/question.rs:114:9
[INFO] [stdout]     |
[INFO] [stdout] 114 |       /// ```
[INFO] [stdout]     |  _________^
[INFO] [stdout] 115 | |     /// let mut question = Question::new(String::from("choose a color: ");
[INFO] [stdout] 116 | |     ///    let choices: Vec<String> = vec![
[INFO] [stdout] 117 | |     /// String::from("Red"),
[INFO] [stdout] ...   |
[INFO] [stdout] 121 | |     /// question.add_choices(choices);
[INFO] [stdout] 122 | |     /// ```
[INFO] [stdout]     | |___________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: error from rustc: this file contains an unclosed delimiter
[INFO] [stdout] help: mark blocks that do not contain Rust code as text
[INFO] [stdout]     |
[INFO] [stdout] 114 |     /// ```text
[INFO] [stdout]     |            ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.34s
[INFO] running `Command { std: "docker" "inspect" "863fccfe5e1035f84a41e63c42d10873023c331662174ff8cf91175fc9feb7ad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "863fccfe5e1035f84a41e63c42d10873023c331662174ff8cf91175fc9feb7ad", kill_on_drop: false }`
[INFO] [stdout] 863fccfe5e1035f84a41e63c42d10873023c331662174ff8cf91175fc9feb7ad
