[INFO] fetching crate ppar 0.3.1...
[INFO] documenting ppar-0.3.1 against da3f5c31e5535b3dc210067de660a45784ae1e9c for pr-162169
[INFO] extracting crate ppar 0.3.1 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate ppar 0.3.1
[INFO] finished tweaking crates.io crate ppar 0.3.1
[INFO] tweaked toml for crates.io crate ppar 0.3.1 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate ppar 0.3.1 on toolchain da3f5c31e5535b3dc210067de660a45784ae1e9c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+da3f5c31e5535b3dc210067de660a45784ae1e9c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate ppar 0.3.1 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" "+da3f5c31e5535b3dc210067de660a45784ae1e9c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:8683fc1fc2eb5c9ac98e0d076ab094b2ffac7f99da555d2b6a2e27f346de2ec7" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] e28b21758f5efbd3f00c8830313448d1edfaafcfacebf09c88cf2cc34e0a9461
[INFO] running `Command { std: "docker" "start" "e28b21758f5efbd3f00c8830313448d1edfaafcfacebf09c88cf2cc34e0a9461", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e28b21758f5efbd3f00c8830313448d1edfaafcfacebf09c88cf2cc34e0a9461", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "e28b21758f5efbd3f00c8830313448d1edfaafcfacebf09c88cf2cc34e0a9461" "/opt/rustwide/cargo-home/bin/cargo" "+da3f5c31e5535b3dc210067de660a45784ae1e9c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e28b21758f5efbd3f00c8830313448d1edfaafcfacebf09c88cf2cc34e0a9461", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-w" "/opt/rustwide/workdir" "--user" "0:0" "e28b21758f5efbd3f00c8830313448d1edfaafcfacebf09c88cf2cc34e0a9461" "/opt/rustwide/cargo-home/bin/cargo" "+da3f5c31e5535b3dc210067de660a45784ae1e9c" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.54
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling derive_arbitrary v0.4.7
[INFO] [stderr]     Checking arbitrary v0.4.7
[INFO] [stderr]  Documenting ppar v0.3.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unexpected `cfg` condition value: `arbitrary`
[INFO] [stdout]   --> src/./ppar.rs:47:11
[INFO] [stdout]    |
[INFO] [stdout] 47 | #[cfg(any(feature = "arbitrary", test))]
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected values for `feature` are: `im`, `im-rc`, `perf`, `rand`, and `structopt`
[INFO] [stdout]    = help: consider adding `arbitrary` as a feature in `Cargo.toml`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]    = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: markdown element starts on one item and ends on another
[INFO] [stdout]     --> src/./ppar.rs:1027:1
[INFO] [stdout]      |
[INFO] [stdout] 1027 | / pub struct IntoIter<T> {
[INFO] [stdout] 1028 | |     stack: Vec<Ref<Node<T>>>,
[INFO] [stdout] 1029 | |     node: Option<Ref<Node<T>>>,
[INFO] [stdout] 1030 | |     off: usize,
[INFO] [stdout] 1031 | | }
[INFO] [stdout]      | |_^
[INFO] [stdout]      |
[INFO] [stdout]      = help: the way this is parsed might change in the future
[INFO] [stdout]      = help: starts near `Persistent array, thread-safe version.`
[INFO] [stdout]      = help: ends near `An iterator that moves elements out of Vector.`
[INFO] [stdout]      = note: `#[deny(rustdoc::unportable_markdown)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: markdown element starts on one item and ends on another
[INFO] [stdout]     --> src/./ppar.rs:1027:1
[INFO] [stdout]      |
[INFO] [stdout] 1027 | / pub struct IntoIter<T> {
[INFO] [stdout] 1028 | |     stack: Vec<Ref<Node<T>>>,
[INFO] [stdout] 1029 | |     node: Option<Ref<Node<T>>>,
[INFO] [stdout] 1030 | |     off: usize,
[INFO] [stdout] 1031 | | }
[INFO] [stdout]      | |_^
[INFO] [stdout]      |
[INFO] [stdout]      = help: the way this is parsed might change in the future
[INFO] [stdout]      = help: starts near `An iterator that moves elements out of Vector.`
[INFO] [stdout]      = help: ends near `An iterator that moves elements out of Vector.`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: markdown element starts on one item and ends on another
[INFO] [stdout]    --> src/./ppar.rs:982:1
[INFO] [stdout]     |
[INFO] [stdout] 982 | / pub struct Iter<'a, T> {
[INFO] [stdout] 983 | |     stack: Vec<&'a Node<T>>,
[INFO] [stdout] 984 | |     node: Option<&'a Node<T>>,
[INFO] [stdout] 985 | |     off: usize,
[INFO] [stdout] 986 | | }
[INFO] [stdout]     | |_^
[INFO] [stdout]     |
[INFO] [stdout]     = help: the way this is parsed might change in the future
[INFO] [stdout]     = help: starts near `Persistent array, thread-safe version.`
[INFO] [stdout]     = help: ends near `An iterator for Vector.`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: markdown element starts on one item and ends on another
[INFO] [stdout]    --> src/./ppar.rs:982:1
[INFO] [stdout]     |
[INFO] [stdout] 982 | / pub struct Iter<'a, T> {
[INFO] [stdout] 983 | |     stack: Vec<&'a Node<T>>,
[INFO] [stdout] 984 | |     node: Option<&'a Node<T>>,
[INFO] [stdout] 985 | |     off: usize,
[INFO] [stdout] 986 | | }
[INFO] [stdout]     | |_^
[INFO] [stdout]     |
[INFO] [stdout]     = help: the way this is parsed might change in the future
[INFO] [stdout]     = help: starts near `An iterator for Vector.`
[INFO] [stdout]     = help: ends near `An iterator for Vector.`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: markdown element starts on one item and ends on another
[INFO] [stdout]   --> src/./ppar.rs:7:1
[INFO] [stdout]    |
[INFO] [stdout]  7 | / pub struct Vector<T>
[INFO] [stdout]  8 | | where
[INFO] [stdout]  9 | |     T: Sized,
[INFO] [stdout] ...  |
[INFO] [stdout] 14 | |     leaf_cap: usize,
[INFO] [stdout] 15 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = help: the way this is parsed might change in the future
[INFO] [stdout]    = help: starts near `Persistent array, thread-safe version.`
[INFO] [stdout]    = help: ends near `Persistent array using rope-data-structure.`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: markdown element starts on one item and ends on another
[INFO] [stdout]   --> src/./ppar.rs:7:1
[INFO] [stdout]    |
[INFO] [stdout]  7 | / pub struct Vector<T>
[INFO] [stdout]  8 | | where
[INFO] [stdout]  9 | |     T: Sized,
[INFO] [stdout] ...  |
[INFO] [stdout] 14 | |     leaf_cap: usize,
[INFO] [stdout] 15 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = help: the way this is parsed might change in the future
[INFO] [stdout]    = help: starts near `Persistent array using rope-data-structure.`
[INFO] [stdout]    = help: ends near `Persistent array using rope-data-structure.`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not document `ppar`
[INFO] running `Command { std: "docker" "inspect" "e28b21758f5efbd3f00c8830313448d1edfaafcfacebf09c88cf2cc34e0a9461", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e28b21758f5efbd3f00c8830313448d1edfaafcfacebf09c88cf2cc34e0a9461", kill_on_drop: false }`
[INFO] [stdout] e28b21758f5efbd3f00c8830313448d1edfaafcfacebf09c88cf2cc34e0a9461
