[INFO] cloning repository https://github.com/MSleepyPanda/explain-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/MSleepyPanda/explain-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMSleepyPanda%2Fexplain-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMSleepyPanda%2Fexplain-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 10522cf5c80910dfa6a0c1db49360ecef247cf89
[INFO] documenting MSleepyPanda/explain-rs 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%2FMSleepyPanda%2Fexplain-rs" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/MSleepyPanda/explain-rs 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/MSleepyPanda/explain-rs
[INFO] finished tweaking git repo https://github.com/MSleepyPanda/explain-rs
[INFO] tweaked toml for git repo https://github.com/MSleepyPanda/explain-rs written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/MSleepyPanda/explain-rs 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-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] 7ef6c213430e1f5dc3b761ff157024b05ff6dd72b78c148f55166e20f2caba76
[INFO] running `Command { std: "docker" "start" "-a" "7ef6c213430e1f5dc3b761ff157024b05ff6dd72b78c148f55166e20f2caba76", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7ef6c213430e1f5dc3b761ff157024b05ff6dd72b78c148f55166e20f2caba76", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7ef6c213430e1f5dc3b761ff157024b05ff6dd72b78c148f55166e20f2caba76", kill_on_drop: false }`
[INFO] [stdout] 7ef6c213430e1f5dc3b761ff157024b05ff6dd72b78c148f55166e20f2caba76
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] a5fa528f764950b7b275f210ec53d595cc80f66686396d1066048b962676b9c2
[INFO] running `Command { std: "docker" "start" "-a" "a5fa528f764950b7b275f210ec53d595cc80f66686396d1066048b962676b9c2", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-xid v0.0.4
[INFO] [stderr]    Compiling quote v0.3.15
[INFO] [stderr]     Checking matches v0.1.6
[INFO] [stderr]     Checking num-traits v0.1.41
[INFO] [stderr]     Checking dtoa v0.4.2
[INFO] [stderr]     Checking unicode-normalization v0.1.5
[INFO] [stderr]     Checking serde v1.0.24
[INFO] [stderr]     Checking itoa v0.3.4
[INFO] [stderr]     Checking either v1.4.0
[INFO] [stderr]     Checking peresil v0.3.0 (https://github.com/shepmaster/peresil#6e4f794b)
[INFO] [stderr]     Checking percent-encoding v1.0.1 (https://github.com/servo/rust-url#027450de)
[INFO] [stderr]     Checking lazy_static v1.0.0
[INFO] [stderr]     Checking sha1 v0.3.0
[INFO] [stderr]     Checking unicode-bidi v0.3.4
[INFO] [stderr]    Compiling synom v0.11.3
[INFO] [stderr]     Checking itertools v0.7.5
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]     Checking idna v0.1.4 (https://github.com/servo/rust-url#027450de)
[INFO] [stderr]     Checking url v1.6.1 (https://github.com/servo/rust-url#027450de)
[INFO] [stderr]    Compiling serde_derive_internals v0.18.0
[INFO] [stderr] warning: failed to check lib in package `url` 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/git/checkouts/rust-url-3ddac0958e207dae/027450d/Cargo.toml
[INFO] [stderr] warning: `url` (lib) generated 1 warning
[INFO] [stderr]    Compiling fuzzy-pickles-derive v0.1.0 (https://github.com/shepmaster/fuzzy-pickles#abf5ae5b)
[INFO] [stderr]    Compiling serde_derive v1.0.24
[INFO] [stderr]     Checking fuzzy-pickles v0.1.0 (https://github.com/shepmaster/fuzzy-pickles#abf5ae5b)
[INFO] [stderr]     Checking serde_json v1.0.8
[INFO] [stderr]     Checking stdweb v0.2.0
[INFO] [stderr]     Scraping explain-rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]  Documenting explain-rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.76s
[INFO] running `Command { std: "docker" "inspect" "a5fa528f764950b7b275f210ec53d595cc80f66686396d1066048b962676b9c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a5fa528f764950b7b275f210ec53d595cc80f66686396d1066048b962676b9c2", kill_on_drop: false }`
[INFO] [stdout] a5fa528f764950b7b275f210ec53d595cc80f66686396d1066048b962676b9c2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] 4638a9d0eee53c99fcd7d19bf89be7e4172d649abbc890a8e0763c751ce6b920
[INFO] running `Command { std: "docker" "start" "-a" "4638a9d0eee53c99fcd7d19bf89be7e4172d649abbc890a8e0763c751ce6b920", kill_on_drop: false }`
[INFO] [stderr]     Checking url v1.6.1 (https://github.com/servo/rust-url#027450de)
[INFO] [stderr] warning: failed to check lib in package `url` 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/git/checkouts/rust-url-3ddac0958e207dae/027450d/Cargo.toml
[INFO] [stderr] warning: `url` (lib) generated 1 warning
[INFO] [stderr]     Scraping explain-rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]  Documenting explain-rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.13s
[INFO] running `Command { std: "docker" "inspect" "4638a9d0eee53c99fcd7d19bf89be7e4172d649abbc890a8e0763c751ce6b920", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4638a9d0eee53c99fcd7d19bf89be7e4172d649abbc890a8e0763c751ce6b920", kill_on_drop: false }`
[INFO] [stdout] 4638a9d0eee53c99fcd7d19bf89be7e4172d649abbc890a8e0763c751ce6b920