[INFO] cloning repository https://github.com/xicalango/kvs2
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/xicalango/kvs2" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fxicalango%2Fkvs2", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fxicalango%2Fkvs2'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 52a7c871e5d1d24f684a3f30e7d4afbb2ef9cc22
[INFO] documenting xicalango/kvs2 against try#6ee483316d2e4581572121d60a955affb2032eb3+cargoflags=-Zrustdoc-scrape-examples for scrape-examples
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fxicalango%2Fkvs2" "/workspace/builds/worker-5/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/xicalango/kvs2 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 git repo https://github.com/xicalango/kvs2
[INFO] finished tweaking git repo https://github.com/xicalango/kvs2
[INFO] tweaked toml for git repo https://github.com/xicalango/kvs2 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/xicalango/kvs2 already has a lockfile, it will not be regenerated
[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-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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] 1571db8caf5dee02f888826589d3ad100004652d347027dbc2ca26980b1b2b1b
[INFO] running `Command { std: "docker" "start" "-a" "1571db8caf5dee02f888826589d3ad100004652d347027dbc2ca26980b1b2b1b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1571db8caf5dee02f888826589d3ad100004652d347027dbc2ca26980b1b2b1b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1571db8caf5dee02f888826589d3ad100004652d347027dbc2ca26980b1b2b1b", kill_on_drop: false }`
[INFO] [stdout] 1571db8caf5dee02f888826589d3ad100004652d347027dbc2ca26980b1b2b1b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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] ecae35bc11fe663bd0794041e99cd20c1aeb63c8876826f53aceaa539820116e
[INFO] running `Command { std: "docker" "start" "-a" "ecae35bc11fe663bd0794041e99cd20c1aeb63c8876826f53aceaa539820116e", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-xid v0.0.4
[INFO] [stderr]    Compiling quote v0.3.12
[INFO] [stderr]     Checking serde v0.9.7
[INFO] [stderr]     Checking num-traits v0.1.36
[INFO] [stderr]     Checking dtoa v0.4.1
[INFO] [stderr]     Checking itoa v0.3.1
[INFO] [stderr]     Checking getopts v0.2.14
[INFO] [stderr] warning: failed to check lib in package `getopts` 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/getopts-0.2.14/Cargo.toml
[INFO] [stderr] warning: `getopts` (lib) generated 1 warning
[INFO] [stderr]    Compiling syn v0.11.4
[INFO] [stderr]    Compiling serde_codegen_internals v0.13.0
[INFO] [stderr]    Compiling serde_derive v0.9.7
[INFO] [stderr]     Checking serde_json v0.9.6
[INFO] [stderr]     Scraping kvs2 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]  Documenting kvs2 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.05s
[INFO] running `Command { std: "docker" "inspect" "ecae35bc11fe663bd0794041e99cd20c1aeb63c8876826f53aceaa539820116e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ecae35bc11fe663bd0794041e99cd20c1aeb63c8876826f53aceaa539820116e", kill_on_drop: false }`
[INFO] [stdout] ecae35bc11fe663bd0794041e99cd20c1aeb63c8876826f53aceaa539820116e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "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: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] c449619f5157d96e73da5b53fefbbf9e6e8f794a4caf714208874e0a227611b3
[INFO] running `Command { std: "docker" "start" "-a" "c449619f5157d96e73da5b53fefbbf9e6e8f794a4caf714208874e0a227611b3", kill_on_drop: false }`
[INFO] [stderr]     Checking getopts v0.2.14
[INFO] [stderr] warning: failed to check lib in package `getopts` 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/getopts-0.2.14/Cargo.toml
[INFO] [stderr] warning: `getopts` (lib) generated 1 warning
[INFO] [stderr]     Scraping kvs2 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]  Documenting kvs2 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.53s
[INFO] running `Command { std: "docker" "inspect" "c449619f5157d96e73da5b53fefbbf9e6e8f794a4caf714208874e0a227611b3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c449619f5157d96e73da5b53fefbbf9e6e8f794a4caf714208874e0a227611b3", kill_on_drop: false }`
[INFO] [stdout] c449619f5157d96e73da5b53fefbbf9e6e8f794a4caf714208874e0a227611b3