[INFO] fetching crate zui-runtime 0.0.0...
[INFO] documenting zui-runtime-0.0.0 against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] extracting crate zui-runtime 0.0.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate zui-runtime 0.0.0 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 zui-runtime 0.0.0
[INFO] finished tweaking crates.io crate zui-runtime 0.0.0
[INFO] tweaked toml for crates.io crate zui-runtime 0.0.0 written to /workspace/builds/worker-4/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-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] 54545c05bfec5ac8cba45b092269fb756a7e311c493acb5cc4d15a3f8a57d12a
[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" "54545c05bfec5ac8cba45b092269fb756a7e311c493acb5cc4d15a3f8a57d12a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "54545c05bfec5ac8cba45b092269fb756a7e311c493acb5cc4d15a3f8a57d12a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "54545c05bfec5ac8cba45b092269fb756a7e311c493acb5cc4d15a3f8a57d12a", kill_on_drop: false }`
[INFO] [stdout] 54545c05bfec5ac8cba45b092269fb756a7e311c493acb5cc4d15a3f8a57d12a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] 43134ab3fa080b87640bee717fffd881ab071d109c80a471802189b49a8e026e
[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" "43134ab3fa080b87640bee717fffd881ab071d109c80a471802189b49a8e026e", kill_on_drop: false }`
[INFO] [stderr]  Documenting zui-runtime v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.53s
[INFO] running `Command { std: "docker" "inspect" "43134ab3fa080b87640bee717fffd881ab071d109c80a471802189b49a8e026e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "43134ab3fa080b87640bee717fffd881ab071d109c80a471802189b49a8e026e", kill_on_drop: false }`
[INFO] [stdout] 43134ab3fa080b87640bee717fffd881ab071d109c80a471802189b49a8e026e