[INFO] fetching crate vblk 0.1.2...
[INFO] documenting vblk-0.1.2 against 1.46.0 for beta-1.47-rustdoc-1
[INFO] extracting crate vblk 0.1.2 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate vblk 0.1.2 on toolchain 1.46.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate vblk 0.1.2
[INFO] finished tweaking crates.io crate vblk 0.1.2
[INFO] tweaked toml for crates.io crate vblk 0.1.2 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate crates.io crate vblk 0.1.2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.46.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0385aada38cbb0026b669194c45cea64896c9a2155a8532b2463f7f170f35c30
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "0385aada38cbb0026b669194c45cea64896c9a2155a8532b2463f7f170f35c30", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0385aada38cbb0026b669194c45cea64896c9a2155a8532b2463f7f170f35c30", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0385aada38cbb0026b669194c45cea64896c9a2155a8532b2463f7f170f35c30", kill_on_drop: false }`
[INFO] [stdout] 0385aada38cbb0026b669194c45cea64896c9a2155a8532b2463f7f170f35c30
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "RUSTDOCFLAGS=--cap-lints=warn" "-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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.46.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e7940f4444547c5c3afeb5f7e7a8a2d8e4c3a7ebf8252402b05e5f7ff0b3db60
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "e7940f4444547c5c3afeb5f7e7a8a2d8e4c3a7ebf8252402b05e5f7ff0b3db60", kill_on_drop: false }`
[INFO] [stderr]    Compiling byteorder v1.3.2
[INFO] [stderr]    Compiling libc v0.2.66
[INFO] [stderr]    Compiling nix v0.16.1
[INFO] [stderr]    Compiling zerocopy-derive v0.1.4
[INFO] [stderr]     Checking zerocopy v0.2.8
[INFO] [stderr]  Documenting vblk v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 24.30s
[INFO] running `Command { std: "docker" "inspect" "e7940f4444547c5c3afeb5f7e7a8a2d8e4c3a7ebf8252402b05e5f7ff0b3db60", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e7940f4444547c5c3afeb5f7e7a8a2d8e4c3a7ebf8252402b05e5f7ff0b3db60", kill_on_drop: false }`
[INFO] [stdout] e7940f4444547c5c3afeb5f7e7a8a2d8e4c3a7ebf8252402b05e5f7ff0b3db60