[INFO] fetching crate parry 0.1.0...
[INFO] documenting parry-0.1.0 against try#6ee483316d2e4581572121d60a955affb2032eb3+cargoflags=-Zrustdoc-scrape-examples for scrape-examples
[INFO] extracting crate parry 0.1.0 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate parry 0.1.0 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 parry 0.1.0
[INFO] finished tweaking crates.io crate parry 0.1.0
[INFO] tweaked toml for crates.io crate parry 0.1.0 written to /workspace/builds/worker-6/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-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] a0081ffc7e0063571ca82022a0ffcc92ad5f4b833598b6db8c50ab530d5be578
[INFO] running `Command { std: "docker" "start" "-a" "a0081ffc7e0063571ca82022a0ffcc92ad5f4b833598b6db8c50ab530d5be578", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a0081ffc7e0063571ca82022a0ffcc92ad5f4b833598b6db8c50ab530d5be578", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a0081ffc7e0063571ca82022a0ffcc92ad5f4b833598b6db8c50ab530d5be578", kill_on_drop: false }`
[INFO] [stdout] a0081ffc7e0063571ca82022a0ffcc92ad5f4b833598b6db8c50ab530d5be578
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] 29709af4f3f327b9cdb38ed1c5c423e70151dbd488324ee0db5d9cde13a2a30e
[INFO] running `Command { std: "docker" "start" "-a" "29709af4f3f327b9cdb38ed1c5c423e70151dbd488324ee0db5d9cde13a2a30e", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling libc v0.2.138
[INFO] [stderr]     Checking rustc-serialize v0.3.24
[INFO] [stderr]     Checking crossbeam v0.1.6
[INFO] [stderr] warning: failed to check lib in package `crossbeam` as a prerequisite for scraping examples from: lib
[INFO] [stderr]     Try running with `--verbose` to see the error message.
[INFO] [stderr]     If an example or library should not be scanned, then consider adding `doc-scrape-examples = false` to its `[[example]]` or `[lib]` definition in /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/crossbeam-0.1.6/Cargo.toml
[INFO] [stderr] warning: `crossbeam` (lib) generated 1 warning
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling num-iter v0.1.43
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking num_cpus v0.2.13
[INFO] [stderr]     Checking rand v0.3.23
[INFO] [stderr]     Checking deque v0.2.3
[INFO] [stderr]     Checking num-complex v0.1.43
[INFO] [stderr]     Checking rayon v0.0.1
[INFO] [stderr]     Checking num-bigint v0.1.44
[INFO] [stderr]     Checking num-rational v0.1.42
[INFO] [stderr]     Checking num v0.1.42
[INFO] [stderr]     Scraping parry v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: failed to scan lib in package `parry` for example code usage
[INFO] [stderr]     Try running with `--verbose` to see the error message.
[INFO] [stderr]     If an example or library should not be scanned, then consider adding `doc-scrape-examples = false` to its `[[example]]` or `[lib]` definition in Cargo.toml
[INFO] [stderr] warning: `parry` (lib) generated 1 warning
[INFO] [stderr]  Documenting parry v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]   --> src/raw.rs:42:9
[INFO] [stdout]    |
[INFO] [stdout] 42 |         (Zip(self.0.rev(), self.1.rev()))
[INFO] [stdout]    |         ^                               ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 42 -         (Zip(self.0.rev(), self.1.rev()))
[INFO] [stdout] 42 +         Zip(self.0.rev(), self.1.rev())
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.96s
[INFO] running `Command { std: "docker" "inspect" "29709af4f3f327b9cdb38ed1c5c423e70151dbd488324ee0db5d9cde13a2a30e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "29709af4f3f327b9cdb38ed1c5c423e70151dbd488324ee0db5d9cde13a2a30e", kill_on_drop: false }`
[INFO] [stdout] 29709af4f3f327b9cdb38ed1c5c423e70151dbd488324ee0db5d9cde13a2a30e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] 42fc1436f6aba3bfaaaa2e7ace8b028320ecb4e73d0b106e1a651e2f259bb90e
[INFO] running `Command { std: "docker" "start" "-a" "42fc1436f6aba3bfaaaa2e7ace8b028320ecb4e73d0b106e1a651e2f259bb90e", kill_on_drop: false }`
[INFO] [stderr]     Checking crossbeam v0.1.6
[INFO] [stderr] warning: failed to check lib in package `crossbeam` as a prerequisite for scraping examples from: lib
[INFO] [stderr]     Try running with `--verbose` to see the error message.
[INFO] [stderr]     If an example or library should not be scanned, then consider adding `doc-scrape-examples = false` to its `[[example]]` or `[lib]` definition in /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/crossbeam-0.1.6/Cargo.toml
[INFO] [stderr] warning: `crossbeam` (lib) generated 1 warning
[INFO] [stderr]     Scraping parry v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: failed to scan lib in package `parry` for example code usage
[INFO] [stderr]     Try running with `--verbose` to see the error message.
[INFO] [stderr]     If an example or library should not be scanned, then consider adding `doc-scrape-examples = false` to its `[[example]]` or `[lib]` definition in Cargo.toml
[INFO] [stderr] warning: `parry` (lib) generated 1 warning
[INFO] [stderr]  Documenting parry v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]   --> src/raw.rs:42:9
[INFO] [stdout]    |
[INFO] [stdout] 42 |         (Zip(self.0.rev(), self.1.rev()))
[INFO] [stdout]    |         ^                               ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 42 -         (Zip(self.0.rev(), self.1.rev()))
[INFO] [stdout] 42 +         Zip(self.0.rev(), self.1.rev())
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.23s
[INFO] running `Command { std: "docker" "inspect" "42fc1436f6aba3bfaaaa2e7ace8b028320ecb4e73d0b106e1a651e2f259bb90e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "42fc1436f6aba3bfaaaa2e7ace8b028320ecb4e73d0b106e1a651e2f259bb90e", kill_on_drop: false }`
[INFO] [stdout] 42fc1436f6aba3bfaaaa2e7ace8b028320ecb4e73d0b106e1a651e2f259bb90e