[INFO] fetching crate constrainer 0.0.2...
[INFO] documenting constrainer-0.0.2 against nightly for scrape-examples
[INFO] extracting crate constrainer 0.0.2 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate constrainer 0.0.2 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 constrainer 0.0.2
[INFO] finished tweaking crates.io crate constrainer 0.0.2
[INFO] tweaked toml for crates.io crate constrainer 0.0.2 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate crates.io crate constrainer 0.0.2 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] 4ad855168c9f18e57a5fd018aef3332183994188adcc6de2ad0f37068f17b384
[INFO] running `Command { std: "docker" "start" "-a" "4ad855168c9f18e57a5fd018aef3332183994188adcc6de2ad0f37068f17b384", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4ad855168c9f18e57a5fd018aef3332183994188adcc6de2ad0f37068f17b384", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4ad855168c9f18e57a5fd018aef3332183994188adcc6de2ad0f37068f17b384", kill_on_drop: false }`
[INFO] [stdout] 4ad855168c9f18e57a5fd018aef3332183994188adcc6de2ad0f37068f17b384
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] 8a96be60664c87248f1b3e9669f1d3c5d08d699fe52025d571fcce4bac54a968
[INFO] running `Command { std: "docker" "start" "-a" "8a96be60664c87248f1b3e9669f1d3c5d08d699fe52025d571fcce4bac54a968", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.32
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]     Checking unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.82
[INFO] [stderr]     Checking hashbrown v0.11.2
[INFO] [stderr]    Compiling indexmap v1.7.0
[INFO] [stderr]     Checking quote v1.0.10
[INFO] [stderr]  Documenting constrainer v0.0.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.47s
[INFO] running `Command { std: "docker" "inspect" "8a96be60664c87248f1b3e9669f1d3c5d08d699fe52025d571fcce4bac54a968", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8a96be60664c87248f1b3e9669f1d3c5d08d699fe52025d571fcce4bac54a968", kill_on_drop: false }`
[INFO] [stdout] 8a96be60664c87248f1b3e9669f1d3c5d08d699fe52025d571fcce4bac54a968
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] 2bffec4aa8e4eb7e0ad6154afdd001b696d388b18717fd2cbdd783d24237a585
[INFO] running `Command { std: "docker" "start" "-a" "2bffec4aa8e4eb7e0ad6154afdd001b696d388b18717fd2cbdd783d24237a585", kill_on_drop: false }`
[INFO] [stderr]  Documenting constrainer v0.0.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.45s
[INFO] running `Command { std: "docker" "inspect" "2bffec4aa8e4eb7e0ad6154afdd001b696d388b18717fd2cbdd783d24237a585", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2bffec4aa8e4eb7e0ad6154afdd001b696d388b18717fd2cbdd783d24237a585", kill_on_drop: false }`
[INFO] [stdout] 2bffec4aa8e4eb7e0ad6154afdd001b696d388b18717fd2cbdd783d24237a585