[INFO] fetching crate prost-types 0.6.1...
[INFO] documenting prost-types-0.6.1 against 1.46.0 for beta-1.47-rustdoc-1
[INFO] extracting crate prost-types 0.6.1 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate prost-types 0.6.1 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 prost-types 0.6.1
[INFO] finished tweaking crates.io crate prost-types 0.6.1
[INFO] tweaked toml for crates.io crate prost-types 0.6.1 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[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-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] 136d1931b105a9dd2f8d12810842bbb32365b1fac2d86718b069f8dfb9f0b1a7
[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" "136d1931b105a9dd2f8d12810842bbb32365b1fac2d86718b069f8dfb9f0b1a7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "136d1931b105a9dd2f8d12810842bbb32365b1fac2d86718b069f8dfb9f0b1a7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "136d1931b105a9dd2f8d12810842bbb32365b1fac2d86718b069f8dfb9f0b1a7", kill_on_drop: false }`
[INFO] [stdout] 136d1931b105a9dd2f8d12810842bbb32365b1fac2d86718b069f8dfb9f0b1a7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] ede3f1a89b8e4742d5131673239cb1e2f81101f3fdd577f9d7b8a230c8bd957e
[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" "ede3f1a89b8e4742d5131673239cb1e2f81101f3fdd577f9d7b8a230c8bd957e", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling prost-derive v0.6.1
[INFO] [stderr]     Checking prost v0.6.1
[INFO] [stderr]  Documenting prost-types v0.6.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.35s
[INFO] running `Command { std: "docker" "inspect" "ede3f1a89b8e4742d5131673239cb1e2f81101f3fdd577f9d7b8a230c8bd957e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ede3f1a89b8e4742d5131673239cb1e2f81101f3fdd577f9d7b8a230c8bd957e", kill_on_drop: false }`
[INFO] [stdout] ede3f1a89b8e4742d5131673239cb1e2f81101f3fdd577f9d7b8a230c8bd957e