[INFO] fetching crate doc-since 0.0.1...
[INFO] documenting doc-since-0.0.1 against nightly for scrape-examples
[INFO] extracting crate doc-since 0.0.1 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate doc-since 0.0.1 on toolchain nightly
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+nightly" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate doc-since 0.0.1
[INFO] finished tweaking crates.io crate doc-since 0.0.1
[INFO] tweaked toml for crates.io crate doc-since 0.0.1 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate crates.io crate doc-since 0.0.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+nightly" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+nightly" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 33df35c60e7fa1a91666b6618e739e8a09991788617b353b860093a77a860324
[INFO] running `Command { std: "docker" "start" "-a" "33df35c60e7fa1a91666b6618e739e8a09991788617b353b860093a77a860324", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "33df35c60e7fa1a91666b6618e739e8a09991788617b353b860093a77a860324", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "33df35c60e7fa1a91666b6618e739e8a09991788617b353b860093a77a860324", kill_on_drop: false }`
[INFO] [stdout] 33df35c60e7fa1a91666b6618e739e8a09991788617b353b860093a77a860324
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+nightly" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0191af24ef6ba5bf0ccafe5319c1ce7c45892b507bf5daa0bd5c8c984bd345c6
[INFO] running `Command { std: "docker" "start" "-a" "0191af24ef6ba5bf0ccafe5319c1ce7c45892b507bf5daa0bd5c8c984bd345c6", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.36
[INFO] [stderr]     Checking unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.86
[INFO] [stderr]     Checking quote v1.0.15
[INFO] [stderr]  Documenting doc-since v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.84s
[INFO] running `Command { std: "docker" "inspect" "0191af24ef6ba5bf0ccafe5319c1ce7c45892b507bf5daa0bd5c8c984bd345c6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0191af24ef6ba5bf0ccafe5319c1ce7c45892b507bf5daa0bd5c8c984bd345c6", kill_on_drop: false }`
[INFO] [stdout] 0191af24ef6ba5bf0ccafe5319c1ce7c45892b507bf5daa0bd5c8c984bd345c6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+nightly" "rustdoc" "--lib" "-Zrustdoc-map" "-Z" "unstable-options" "--config" "build.rustdocflags=[\"-Z\", \"unstable-options\", \"--document-private-items\"]" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 35d90ce1bef5b88847d23a120104464eb681f53248c0e75994daf08457690e36
[INFO] running `Command { std: "docker" "start" "-a" "35d90ce1bef5b88847d23a120104464eb681f53248c0e75994daf08457690e36", kill_on_drop: false }`
[INFO] [stderr]  Documenting doc-since v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.48s
[INFO] running `Command { std: "docker" "inspect" "35d90ce1bef5b88847d23a120104464eb681f53248c0e75994daf08457690e36", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "35d90ce1bef5b88847d23a120104464eb681f53248c0e75994daf08457690e36", kill_on_drop: false }`
[INFO] [stdout] 35d90ce1bef5b88847d23a120104464eb681f53248c0e75994daf08457690e36