[INFO] fetching crate two-party-hash 0.1.0...
[INFO] documenting two-party-hash-0.1.0 against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] extracting crate two-party-hash 0.1.0 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate two-party-hash 0.1.0 on toolchain beta-2020-08-29
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate two-party-hash 0.1.0
[INFO] finished tweaking crates.io crate two-party-hash 0.1.0
[INFO] tweaked toml for crates.io crate two-party-hash 0.1.0 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-08-29" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 42866ce3045bc7279de9603daeffa982431504d7cb695c0ff23e8d51a8b50a3e
[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" "42866ce3045bc7279de9603daeffa982431504d7cb695c0ff23e8d51a8b50a3e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "42866ce3045bc7279de9603daeffa982431504d7cb695c0ff23e8d51a8b50a3e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "42866ce3045bc7279de9603daeffa982431504d7cb695c0ff23e8d51a8b50a3e", kill_on_drop: false }`
[INFO] [stdout] 42866ce3045bc7279de9603daeffa982431504d7cb695c0ff23e8d51a8b50a3e
[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" "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" "+beta-2020-08-29" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ac222e3f3affc0f25a15145e12e1565c763ab6c71acc4d77edc0d402959c455f
[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" "ac222e3f3affc0f25a15145e12e1565c763ab6c71acc4d77edc0d402959c455f", kill_on_drop: false }`
[INFO] [stderr]     Checking rand_os v0.2.2
[INFO] [stderr]  Documenting two-party-hash v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.00s
[INFO] running `Command { std: "docker" "inspect" "ac222e3f3affc0f25a15145e12e1565c763ab6c71acc4d77edc0d402959c455f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ac222e3f3affc0f25a15145e12e1565c763ab6c71acc4d77edc0d402959c455f", kill_on_drop: false }`
[INFO] [stdout] ac222e3f3affc0f25a15145e12e1565c763ab6c71acc4d77edc0d402959c455f