[INFO] fetching crate piper 0.1.3...
[INFO] documenting piper-0.1.3 against beta-2022-05-20 for beta-1.62-rustdoc-1
[INFO] extracting crate piper 0.1.3 into /workspace/builds/worker-17/source
[INFO] validating manifest of crates.io crate piper 0.1.3 on toolchain beta-2022-05-20
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate piper 0.1.3
[INFO] finished tweaking crates.io crate piper 0.1.3
[INFO] tweaked toml for crates.io crate piper 0.1.3 written to /workspace/builds/worker-17/source/Cargo.toml
[INFO] crate crates.io crate piper 0.1.3 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "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-17/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-05-20" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2a5230f5056b1d2651bff9a89b5ebba8bdd93398f3f1118bfeca108be016194f
[INFO] running `Command { std: "docker" "start" "-a" "2a5230f5056b1d2651bff9a89b5ebba8bdd93398f3f1118bfeca108be016194f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2a5230f5056b1d2651bff9a89b5ebba8bdd93398f3f1118bfeca108be016194f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2a5230f5056b1d2651bff9a89b5ebba8bdd93398f3f1118bfeca108be016194f", kill_on_drop: false }`
[INFO] [stdout] 2a5230f5056b1d2651bff9a89b5ebba8bdd93398f3f1118bfeca108be016194f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-05-20" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 272f34871fbe14b97eb91349a25a6877c79f3e1c1e6d86fdc21f77872e4ec252
[INFO] running `Command { std: "docker" "start" "-a" "272f34871fbe14b97eb91349a25a6877c79f3e1c1e6d86fdc21f77872e4ec252", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.13
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling syn v1.0.22
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]     Checking once_cell v1.4.0
[INFO] [stderr]     Checking futures-sink v0.3.5
[INFO] [stderr]     Checking futures-core v0.3.5
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]     Checking futures-io v0.3.5
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking slab v0.4.2
[INFO] [stderr]     Checking futures-channel v0.3.5
[INFO] [stderr]     Checking futures-task v0.3.5
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling quote v1.0.5
[INFO] [stderr]    Compiling pin-project-internal v0.4.16
[INFO] [stderr]     Checking pin-project v0.4.16
[INFO] [stderr]     Checking futures-util v0.3.5
[INFO] [stderr]  Documenting piper v0.1.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unresolved link to `Notified`
[INFO] [stdout]    --> src/event.rs:373:41
[INFO] [stdout]     |
[INFO] [stdout] 373 |     /// Returns `true` if this is the [`Notified`] state.
[INFO] [stdout]     |                                         ^^^^^^^^ no item named `Notified` in scope
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(rustdoc::broken_intra_doc_links)]` on by default
[INFO] [stdout]     = help: to escape `[` and `]` characters, add '\' before them like `\[` or `\]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: could not parse code block as Rust code
[INFO] [stdout]    --> src/chan.rs:362:5
[INFO] [stdout]     |
[INFO] [stdout] 362 |   /// ```
[INFO] [stdout]     |  _____^
[INFO] [stdout] 363 | | /// use smol::{Task, Timer};
[INFO] [stdout] 364 | | /// use std::time::Duration;
[INFO] [stdout] 365 | | ///
[INFO] [stdout] ...   |
[INFO] [stdout] 378 | | /// # })
[INFO] [stdout] 379 | | /// ```
[INFO] [stdout]     | |_______^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(rustdoc::invalid_rust_codeblocks)]` on by default
[INFO] [stdout]     = note: error from rustc: mismatched closing delimiter: `}`
[INFO] [stdout] help: mark blocks that do not contain Rust code as text
[INFO] [stdout]     |
[INFO] [stdout] 362 | /// ```text
[INFO] [stdout]     |        ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 52.51s
[INFO] running `Command { std: "docker" "inspect" "272f34871fbe14b97eb91349a25a6877c79f3e1c1e6d86fdc21f77872e4ec252", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "272f34871fbe14b97eb91349a25a6877c79f3e1c1e6d86fdc21f77872e4ec252", kill_on_drop: false }`
[INFO] [stdout] 272f34871fbe14b97eb91349a25a6877c79f3e1c1e6d86fdc21f77872e4ec252
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/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" "RUSTC_BOOTSTRAP=1" "-e" "DOCS_RS=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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-05-20" "rustdoc" "--lib" "-Zrustdoc-map" "--frozen" "--message-format=json" "--" "-Z" "unstable-options" "--document-private-items", kill_on_drop: false }`
[INFO] [stdout] 0c906197f9b6c7c610dfec5d2ace83cd959a57da3ffb7aa1738d9a3f7a7190ac
[INFO] running `Command { std: "docker" "start" "-a" "0c906197f9b6c7c610dfec5d2ace83cd959a57da3ffb7aa1738d9a3f7a7190ac", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.13
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling syn v1.0.22
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]     Checking once_cell v1.4.0
[INFO] [stderr]     Checking futures-sink v0.3.5
[INFO] [stderr]     Checking futures-core v0.3.5
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking slab v0.4.2
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]     Checking futures-io v0.3.5
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking futures-channel v0.3.5
[INFO] [stderr]     Checking futures-task v0.3.5
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling quote v1.0.5
[INFO] [stderr]    Compiling pin-project-internal v0.4.16
[INFO] [stderr]     Checking pin-project v0.4.16
[INFO] [stderr]     Checking futures-util v0.3.5
[INFO] [stderr]  Documenting piper v0.1.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unresolved link to `Notified`
[INFO] [stdout]    --> src/event.rs:373:41
[INFO] [stdout]     |
[INFO] [stdout] 373 |     /// Returns `true` if this is the [`Notified`] state.
[INFO] [stdout]     |                                         ^^^^^^^^ no item named `Notified` in scope
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(rustdoc::broken_intra_doc_links)]` on by default
[INFO] [stdout]     = help: to escape `[` and `]` characters, add '\' before them like `\[` or `\]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: could not parse code block as Rust code
[INFO] [stdout]    --> src/chan.rs:362:5
[INFO] [stdout]     |
[INFO] [stdout] 362 |   /// ```
[INFO] [stdout]     |  _____^
[INFO] [stdout] 363 | | /// use smol::{Task, Timer};
[INFO] [stdout] 364 | | /// use std::time::Duration;
[INFO] [stdout] 365 | | ///
[INFO] [stdout] ...   |
[INFO] [stdout] 378 | | /// # })
[INFO] [stdout] 379 | | /// ```
[INFO] [stdout]     | |_______^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(rustdoc::invalid_rust_codeblocks)]` on by default
[INFO] [stdout]     = note: error from rustc: mismatched closing delimiter: `}`
[INFO] [stdout] help: mark blocks that do not contain Rust code as text
[INFO] [stdout]     |
[INFO] [stdout] 362 | /// ```text
[INFO] [stdout]     |        ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2m 03s
[INFO] running `Command { std: "docker" "inspect" "0c906197f9b6c7c610dfec5d2ace83cd959a57da3ffb7aa1738d9a3f7a7190ac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0c906197f9b6c7c610dfec5d2ace83cd959a57da3ffb7aa1738d9a3f7a7190ac", kill_on_drop: false }`
[INFO] [stdout] 0c906197f9b6c7c610dfec5d2ace83cd959a57da3ffb7aa1738d9a3f7a7190ac