[INFO] fetching crate fpng-rs 1.0.9...
[INFO] documenting fpng-rs-1.0.9 against try#6ee483316d2e4581572121d60a955affb2032eb3+cargoflags=-Zrustdoc-scrape-examples for scrape-examples
[INFO] extracting crate fpng-rs 1.0.9 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate fpng-rs 1.0.9 on toolchain 6ee483316d2e4581572121d60a955affb2032eb3
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6ee483316d2e4581572121d60a955affb2032eb3" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate fpng-rs 1.0.9
[INFO] finished tweaking crates.io crate fpng-rs 1.0.9
[INFO] tweaked toml for crates.io crate fpng-rs 1.0.9 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6ee483316d2e4581572121d60a955affb2032eb3" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6ee483316d2e4581572121d60a955affb2032eb3" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:bb5b0feb4f87116a4ea905b7ff5bf5b85913db05e9f0fbc1abdd3168928d9075" "/opt/rustwide/cargo-home/bin/cargo" "+6ee483316d2e4581572121d60a955affb2032eb3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 551cdbc496062ece403144d9062620f7b71b9a1b37277ba702b0e43504451b12
[INFO] running `Command { std: "docker" "start" "-a" "551cdbc496062ece403144d9062620f7b71b9a1b37277ba702b0e43504451b12", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "551cdbc496062ece403144d9062620f7b71b9a1b37277ba702b0e43504451b12", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "551cdbc496062ece403144d9062620f7b71b9a1b37277ba702b0e43504451b12", kill_on_drop: false }`
[INFO] [stdout] 551cdbc496062ece403144d9062620f7b71b9a1b37277ba702b0e43504451b12
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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=forbid" "-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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:bb5b0feb4f87116a4ea905b7ff5bf5b85913db05e9f0fbc1abdd3168928d9075" "/opt/rustwide/cargo-home/bin/cargo" "+6ee483316d2e4581572121d60a955affb2032eb3" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json" "-Zrustdoc-scrape-examples", kill_on_drop: false }`
[INFO] [stdout] 4c66f6f8f07c4e5134480e7b0a25b2aecd72b2900f321bea3000c716406e1cad
[INFO] running `Command { std: "docker" "start" "-a" "4c66f6f8f07c4e5134480e7b0a25b2aecd72b2900f321bea3000c716406e1cad", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.47
[INFO] [stderr]    Compiling quote v1.0.21
[INFO] [stderr]    Compiling unicode-ident v1.0.5
[INFO] [stderr]    Compiling syn v1.0.105
[INFO] [stderr]    Compiling cc v1.0.77
[INFO] [stderr]    Compiling thiserror v1.0.37
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]     Checking cty v0.2.2
[INFO] [stderr]    Compiling fpng-rs v1.0.9 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling thiserror-impl v1.0.37
[INFO] [stderr]     Scraping fpng-rs v1.0.9 (/opt/rustwide/workdir)
[INFO] [stderr]  Documenting fpng-rs v1.0.9 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unresolved link to `Png::detect_cpu`
[INFO] [stdout]   --> src/lib.rs:48:16
[INFO] [stdout]    |
[INFO] [stdout] 48 |     /// Call [`Png::detect_cpu()`] once before using so it can detect if the CPU supports SSE 4.1+pclmul (for fast CRC-32 and Adler32).
[INFO] [stdout]    |                ^^^^^^^^^^^^^^^^^ no item named `Png` in scope
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(rustdoc::broken_intra_doc_links)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 11.31s
[INFO] running `Command { std: "docker" "inspect" "4c66f6f8f07c4e5134480e7b0a25b2aecd72b2900f321bea3000c716406e1cad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4c66f6f8f07c4e5134480e7b0a25b2aecd72b2900f321bea3000c716406e1cad", kill_on_drop: false }`
[INFO] [stdout] 4c66f6f8f07c4e5134480e7b0a25b2aecd72b2900f321bea3000c716406e1cad
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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:bb5b0feb4f87116a4ea905b7ff5bf5b85913db05e9f0fbc1abdd3168928d9075" "/opt/rustwide/cargo-home/bin/cargo" "+6ee483316d2e4581572121d60a955affb2032eb3" "rustdoc" "--lib" "-Zrustdoc-map" "-Z" "unstable-options" "--config" "build.rustdocflags=[\"-Z\", \"unstable-options\", \"--document-private-items\"]" "--frozen" "--message-format=json" "-Zrustdoc-scrape-examples", kill_on_drop: false }`
[INFO] [stdout] b8c28687a9fe6881f49701154f79c13a981b5844d91a028968bc0841ab8ffa43
[INFO] running `Command { std: "docker" "start" "-a" "b8c28687a9fe6881f49701154f79c13a981b5844d91a028968bc0841ab8ffa43", kill_on_drop: false }`
[INFO] [stderr]    Compiling fpng-rs v1.0.9 (/opt/rustwide/workdir)
[INFO] [stderr]     Scraping fpng-rs v1.0.9 (/opt/rustwide/workdir)
[INFO] [stderr]  Documenting fpng-rs v1.0.9 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unresolved link to `Png::detect_cpu`
[INFO] [stdout]   --> src/lib.rs:48:16
[INFO] [stdout]    |
[INFO] [stdout] 48 |     /// Call [`Png::detect_cpu()`] once before using so it can detect if the CPU supports SSE 4.1+pclmul (for fast CRC-32 and Adler32).
[INFO] [stdout]    |                ^^^^^^^^^^^^^^^^^ no item named `Png` in scope
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(rustdoc::broken_intra_doc_links)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.30s
[INFO] running `Command { std: "docker" "inspect" "b8c28687a9fe6881f49701154f79c13a981b5844d91a028968bc0841ab8ffa43", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b8c28687a9fe6881f49701154f79c13a981b5844d91a028968bc0841ab8ffa43", kill_on_drop: false }`
[INFO] [stdout] b8c28687a9fe6881f49701154f79c13a981b5844d91a028968bc0841ab8ffa43