[INFO] cloning repository https://github.com/samWson/rusty-ruby
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/samWson/rusty-ruby" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FsamWson%2Frusty-ruby", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FsamWson%2Frusty-ruby'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 43878320bb9ab2be634aa52429c4d24b86652577
[INFO] documenting samWson/rusty-ruby against 1.46.0 for beta-1.47-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FsamWson%2Frusty-ruby" "/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/samWson/rusty-ruby on toolchain 1.46.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/samWson/rusty-ruby
[INFO] finished tweaking git repo https://github.com/samWson/rusty-ruby
[INFO] tweaked toml for git repo https://github.com/samWson/rusty-ruby written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/samWson/rusty-ruby already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.46.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a7f8e24b9d90a1245e1121aa1ba5932e23983c761a38519a2969b3eef5d86827
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "a7f8e24b9d90a1245e1121aa1ba5932e23983c761a38519a2969b3eef5d86827", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a7f8e24b9d90a1245e1121aa1ba5932e23983c761a38519a2969b3eef5d86827", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a7f8e24b9d90a1245e1121aa1ba5932e23983c761a38519a2969b3eef5d86827", kill_on_drop: false }`
[INFO] [stdout] a7f8e24b9d90a1245e1121aa1ba5932e23983c761a38519a2969b3eef5d86827
[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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.46.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fa151a1ff9a0b622c0ebfeead03b530f8e06dfe8b9bed677787bb3e91abc2615
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "fa151a1ff9a0b622c0ebfeead03b530f8e06dfe8b9bed677787bb3e91abc2615", kill_on_drop: false }`
[INFO] [stderr]  Documenting rusty-ruby v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0277]: `std::vec::Vec<token::Token>` is not an iterator
[INFO] [stdout]     --> src/parser.rs:5:5
[INFO] [stdout]      |
[INFO] [stdout] 5    |     lexer: &'a iter::Peekable<Vec<Token>>,
[INFO] [stdout]      |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ `std::vec::Vec<token::Token>` is not an iterator
[INFO] [stdout]      |
[INFO] [stdout]      = help: the trait `std::iter::Iterator` is not implemented for `std::vec::Vec<token::Token>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: `token::Token` is not an iterator
[INFO] [stdout]     --> src/parser.rs:11:23
[INFO] [stdout]      |
[INFO] [stdout] 11   |     pub fn new(lexer: &iter::Peekable<Token>) -> &Parser {
[INFO] [stdout]      |                       ^^^^^^^^^^^^^^^^^^^^^^ `token::Token` is not an iterator
[INFO] [stdout]      |
[INFO] [stdout]      = help: the trait `std::iter::Iterator` is not implemented for `token::Token`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: Could not document `rusty-ruby`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --crate-type bin --crate-name rusty_ruby 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` (exit code: 1)
[INFO] running `Command { std: "docker" "inspect" "fa151a1ff9a0b622c0ebfeead03b530f8e06dfe8b9bed677787bb3e91abc2615", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fa151a1ff9a0b622c0ebfeead03b530f8e06dfe8b9bed677787bb3e91abc2615", kill_on_drop: false }`
[INFO] [stdout] fa151a1ff9a0b622c0ebfeead03b530f8e06dfe8b9bed677787bb3e91abc2615