[INFO] fetching crate cowmug 0.0.1...
[INFO] documenting cowmug-0.0.1 against beta-2021-08-01 for beta-1.55-rustdoc-1
[INFO] extracting crate cowmug 0.0.1 into /workspace/builds/worker-10/source
[INFO] validating manifest of crates.io crate cowmug 0.0.1 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 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-10/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: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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] f579257589b24bafd714e3a1b23abf03a0c36b1ebc88f2e5941c36c469d34ee2
[INFO] running `Command { std: "docker" "start" "-a" "f579257589b24bafd714e3a1b23abf03a0c36b1ebc88f2e5941c36c469d34ee2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f579257589b24bafd714e3a1b23abf03a0c36b1ebc88f2e5941c36c469d34ee2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f579257589b24bafd714e3a1b23abf03a0c36b1ebc88f2e5941c36c469d34ee2", kill_on_drop: false }`
[INFO] [stdout] f579257589b24bafd714e3a1b23abf03a0c36b1ebc88f2e5941c36c469d34ee2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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] d876447626f16a3bd6e82b861a9ce47daab5abc756c556ab5865808d10be6d28
[INFO] running `Command { std: "docker" "start" "-a" "d876447626f16a3bd6e82b861a9ce47daab5abc756c556ab5865808d10be6d28", kill_on_drop: false }`
[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: `#[warn(rustdoc::invalid_rust_codeblocks)]` on by default
[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] 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: 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] 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: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.32s
[INFO] running `Command { std: "docker" "inspect" "d876447626f16a3bd6e82b861a9ce47daab5abc756c556ab5865808d10be6d28", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d876447626f16a3bd6e82b861a9ce47daab5abc756c556ab5865808d10be6d28", kill_on_drop: false }`
[INFO] [stdout] d876447626f16a3bd6e82b861a9ce47daab5abc756c556ab5865808d10be6d28
