[INFO] fetching crate serialize_deserialize_u8_i32 0.1.31...
[INFO] documenting serialize_deserialize_u8_i32-0.1.31 against master#394e1b40d264aa6928811919c1124fa248e7d802 for pr-73566
[INFO] extracting crate serialize_deserialize_u8_i32 0.1.31 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate serialize_deserialize_u8_i32 0.1.31 on toolchain 394e1b40d264aa6928811919c1124fa248e7d802
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+394e1b40d264aa6928811919c1124fa248e7d802" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate serialize_deserialize_u8_i32 0.1.31
[INFO] finished tweaking crates.io crate serialize_deserialize_u8_i32 0.1.31
[INFO] tweaked toml for crates.io crate serialize_deserialize_u8_i32 0.1.31 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+394e1b40d264aa6928811919c1124fa248e7d802" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+394e1b40d264aa6928811919c1124fa248e7d802" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:819119df93c0f5eca3f29186f14981ef29945a311854d7222af07488600a2584" "/opt/rustwide/cargo-home/bin/cargo" "+394e1b40d264aa6928811919c1124fa248e7d802" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4e91bd0b219c96c7bd80f0cfa5a4bb1298112458481ea875868cf719d6a231d1
[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" "4e91bd0b219c96c7bd80f0cfa5a4bb1298112458481ea875868cf719d6a231d1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4e91bd0b219c96c7bd80f0cfa5a4bb1298112458481ea875868cf719d6a231d1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4e91bd0b219c96c7bd80f0cfa5a4bb1298112458481ea875868cf719d6a231d1", kill_on_drop: false }`
[INFO] [stdout] 4e91bd0b219c96c7bd80f0cfa5a4bb1298112458481ea875868cf719d6a231d1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:819119df93c0f5eca3f29186f14981ef29945a311854d7222af07488600a2584" "/opt/rustwide/cargo-home/bin/cargo" "+394e1b40d264aa6928811919c1124fa248e7d802" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6621a12de10206968cec1cf7a91d609e3ef0f71b7ab661b207dd32a873b3101b
[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" "6621a12de10206968cec1cf7a91d609e3ef0f71b7ab661b207dd32a873b3101b", kill_on_drop: false }`
[INFO] [stderr]  Documenting serialize_deserialize_u8_i32 v0.1.31 (/opt/rustwide/workdir)
[INFO] [stdout] warning: `[no_mangle]` cannot be resolved, ignoring it.
[INFO] [stdout]    --> src/lib.rs:102:7
[INFO] [stdout]     |
[INFO] [stdout] 102 | //! #[no_mangle]
[INFO] [stdout]     |       ^^^^^^^^^ cannot be resolved, ignoring
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(intra_doc_link_resolution_failure)]` on by default
[INFO] [stdout]     = help: to escape `[` and `]` characters, just add '\' before them like `\[` or `\]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: could not parse code block as Rust code
[INFO] [stdout]   --> src/lib.rs:21:5
[INFO] [stdout]    |
[INFO] [stdout] 21 |   //! ```rust, ignore
[INFO] [stdout]    |  _____^
[INFO] [stdout] 22 | | //! // Create a high level custom struct
[INFO] [stdout] 23 | | //! #[derive(Serialize, Deserialize, PartialEq, Debug)]
[INFO] [stdout] 24 | | //! struct PhotonImage {
[INFO] [stdout] ...  |
[INFO] [stdout] 75 | | //!     */
[INFO] [stdout] 76 | | //!```
[INFO] [stdout]    | |______^
[INFO] [stdout]    |
[INFO] [stdout]    = note: error from rustc: unknown start of token: `
[INFO] [stdout]    = note: error from rustc: unknown start of token: `
[INFO] [stdout]    = note: error from rustc: unknown start of token: `
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: Rust code block is empty
[INFO] [stdout]    --> src/lib.rs:121:5
[INFO] [stdout]     |
[INFO] [stdout] 121 | //! ```
[INFO] [stdout]     |     ^^^
[INFO] [stdout]     |
[INFO] [stdout] help: mark blocks that do not contain Rust code as text
[INFO] [stdout]     |
[INFO] [stdout] 121 | //! ```text
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.13s
[INFO] running `Command { std: "docker" "inspect" "6621a12de10206968cec1cf7a91d609e3ef0f71b7ab661b207dd32a873b3101b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6621a12de10206968cec1cf7a91d609e3ef0f71b7ab661b207dd32a873b3101b", kill_on_drop: false }`
[INFO] [stdout] 6621a12de10206968cec1cf7a91d609e3ef0f71b7ab661b207dd32a873b3101b