[INFO] fetching crate piston-split_controller 0.13.0...
[INFO] documenting piston-split_controller-0.13.0 against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] extracting crate piston-split_controller 0.13.0 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate piston-split_controller 0.13.0 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 piston-split_controller 0.13.0
[INFO] finished tweaking crates.io crate piston-split_controller 0.13.0
[INFO] tweaked toml for crates.io crate piston-split_controller 0.13.0 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate crates.io crate piston-split_controller 0.13.0 already has a lockfile, it will not be regenerated
[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-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] 1a5f00eb11d9ea27e2f857c56ff6f09d396f72a609651f19b45d4703a6dcf98e
[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" "1a5f00eb11d9ea27e2f857c56ff6f09d396f72a609651f19b45d4703a6dcf98e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1a5f00eb11d9ea27e2f857c56ff6f09d396f72a609651f19b45d4703a6dcf98e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1a5f00eb11d9ea27e2f857c56ff6f09d396f72a609651f19b45d4703a6dcf98e", kill_on_drop: false }`
[INFO] [stdout] 1a5f00eb11d9ea27e2f857c56ff6f09d396f72a609651f19b45d4703a6dcf98e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] 309dbe421f6cb8bc0e2b24484820ea99a9b53e6d0b9d8a790adf46eb174d828d
[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" "309dbe421f6cb8bc0e2b24484820ea99a9b53e6d0b9d8a790adf46eb174d828d", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.18
[INFO] [stderr]    Compiling syn v1.0.34
[INFO] [stderr]     Checking vecmath v1.0.0
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling serde_derive v1.0.114
[INFO] [stderr]     Checking pistoncore-input v1.0.0
[INFO] [stderr]  Documenting piston-split_controller v0.13.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 25.63s
[INFO] running `Command { std: "docker" "inspect" "309dbe421f6cb8bc0e2b24484820ea99a9b53e6d0b9d8a790adf46eb174d828d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "309dbe421f6cb8bc0e2b24484820ea99a9b53e6d0b9d8a790adf46eb174d828d", kill_on_drop: false }`
[INFO] [stdout] 309dbe421f6cb8bc0e2b24484820ea99a9b53e6d0b9d8a790adf46eb174d828d