[INFO] fetching crate prae 0.8.2...
[INFO] documenting prae-0.8.2 against beta-2022-05-20 for beta-1.62-rustdoc-1
[INFO] extracting crate prae 0.8.2 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate prae 0.8.2 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 prae 0.8.2
[INFO] finished tweaking crates.io crate prae 0.8.2
[INFO] tweaked toml for crates.io crate prae 0.8.2 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 8f84c14135ff33fbb3ed14ac768f1644be883cf5468da1013c5ca52a2ab4462e
[INFO] running `Command { std: "docker" "start" "-a" "8f84c14135ff33fbb3ed14ac768f1644be883cf5468da1013c5ca52a2ab4462e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8f84c14135ff33fbb3ed14ac768f1644be883cf5468da1013c5ca52a2ab4462e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8f84c14135ff33fbb3ed14ac768f1644be883cf5468da1013c5ca52a2ab4462e", kill_on_drop: false }`
[INFO] [stdout] 8f84c14135ff33fbb3ed14ac768f1644be883cf5468da1013c5ca52a2ab4462e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 47c803c6a12c5dab735aebda5df484ca66c6d74a135436732cb0c125ad64196d
[INFO] running `Command { std: "docker" "start" "-a" "47c803c6a12c5dab735aebda5df484ca66c6d74a135436732cb0c125ad64196d", kill_on_drop: false }`
[INFO] [stderr]  Documenting prae v0.8.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unresolved link to `impl_serde`
[INFO] [stdout]   --> src/lib.rs:99:27
[INFO] [stdout]    |
[INFO] [stdout] 99 | //!  `serde` | Adds the [`impl_serde`] plugin.
[INFO] [stdout]    |                           ^^^^^^^^^^ no item named `impl_serde` 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: unresolved link to `::serde::Serialize`
[INFO] [stdout]    --> src/lib.rs:314:26
[INFO] [stdout]     |
[INFO] [stdout] 314 | /// [`serde::Serialize`](::serde::Serialize) and
[INFO] [stdout]     |                          ^^^^^^^^^^^^^^^^^^ no item named `` in scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unresolved link to `::serde::Deserialize`
[INFO] [stdout]    --> src/lib.rs:315:28
[INFO] [stdout]     |
[INFO] [stdout] 315 | /// [`serde::Deserialize`](::serde::Deserialize). We *could* use attribute
[INFO] [stdout]     |                            ^^^^^^^^^^^^^^^^^^^^ no item named `` in scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unresolved link to `impl_serde`
[INFO] [stdout]    --> src/lib.rs:350:7
[INFO] [stdout]     |
[INFO] [stdout] 350 | /// [`impl_serde`]. This plugin will implement both
[INFO] [stdout]     |       ^^^^^^^^^^ no item named `impl_serde` in scope
[INFO] [stdout]     |
[INFO] [stdout]     = help: to escape `[` and `]` characters, add '\' before them like `\[` or `\]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unresolved link to `::serde::Deserialize`
[INFO] [stdout]    --> src/lib.rs:347:28
[INFO] [stdout]     |
[INFO] [stdout] 347 | /// [`serde::Deserialize`](::serde::Deserialize) for our type. Since the
[INFO] [stdout]     |                            ^^^^^^^^^^^^^^^^^^^^ no item named `` in scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unresolved link to `::serde::Serialize`
[INFO] [stdout]    --> src/lib.rs:351:26
[INFO] [stdout]     |
[INFO] [stdout] 351 | /// [`serde::Serialize`](::serde::Serialize) and
[INFO] [stdout]     |                          ^^^^^^^^^^^^^^^^^^ no item named `` in scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unresolved link to `::serde::Deserialize`
[INFO] [stdout]    --> src/lib.rs:352:28
[INFO] [stdout]     |
[INFO] [stdout] 352 | /// [`serde::Deserialize`](::serde::Deserialize) the right way:
[INFO] [stdout]     |                            ^^^^^^^^^^^^^^^^^^^^ no item named `` in scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.06s
[INFO] running `Command { std: "docker" "inspect" "47c803c6a12c5dab735aebda5df484ca66c6d74a135436732cb0c125ad64196d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "47c803c6a12c5dab735aebda5df484ca66c6d74a135436732cb0c125ad64196d", kill_on_drop: false }`
[INFO] [stdout] 47c803c6a12c5dab735aebda5df484ca66c6d74a135436732cb0c125ad64196d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-05-20" "rustdoc" "--lib" "-Zrustdoc-map" "--all-features" "--frozen" "--message-format=json" "--" "--cfg" "docsrs" "-Z" "unstable-options" "--document-private-items", kill_on_drop: false }`
[INFO] [stdout] 7c3f4aa15fd760b49a6190465dcd00079305c5f2e0bbbc4cc559c8c685d676b2
[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" "7c3f4aa15fd760b49a6190465dcd00079305c5f2e0bbbc4cc559c8c685d676b2", kill_on_drop: false }`
[INFO] [stderr]  Documenting prae v0.8.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.82s
[INFO] running `Command { std: "docker" "inspect" "7c3f4aa15fd760b49a6190465dcd00079305c5f2e0bbbc4cc559c8c685d676b2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7c3f4aa15fd760b49a6190465dcd00079305c5f2e0bbbc4cc559c8c685d676b2", kill_on_drop: false }`
[INFO] [stdout] 7c3f4aa15fd760b49a6190465dcd00079305c5f2e0bbbc4cc559c8c685d676b2