[INFO] fetching crate webscale_plugin 0.1.0...
[INFO] documenting webscale_plugin-0.1.0 against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] extracting crate webscale_plugin 0.1.0 into /workspace/builds/worker-10/source
[INFO] validating manifest of crates.io crate webscale_plugin 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 webscale_plugin 0.1.0
[INFO] finished tweaking crates.io crate webscale_plugin 0.1.0
[INFO] tweaked toml for crates.io crate webscale_plugin 0.1.0 written to /workspace/builds/worker-10/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-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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] 6d540f3f8c3490a5b10541debd69816e5a064e6d50541ef26371de03d9fe0727
[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" "6d540f3f8c3490a5b10541debd69816e5a064e6d50541ef26371de03d9fe0727", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6d540f3f8c3490a5b10541debd69816e5a064e6d50541ef26371de03d9fe0727", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6d540f3f8c3490a5b10541debd69816e5a064e6d50541ef26371de03d9fe0727", kill_on_drop: false }`
[INFO] [stdout] 6d540f3f8c3490a5b10541debd69816e5a064e6d50541ef26371de03d9fe0727
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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] fac5d810ec7bbc6b5fec00c1b82889d6706230de43d4b32db6fd2b666cb78c43
[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" "fac5d810ec7bbc6b5fec00c1b82889d6706230de43d4b32db6fd2b666cb78c43", kill_on_drop: false }`
[INFO] [stderr]  Documenting webscale_plugin v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.37s
[INFO] running `Command { std: "docker" "inspect" "fac5d810ec7bbc6b5fec00c1b82889d6706230de43d4b32db6fd2b666cb78c43", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fac5d810ec7bbc6b5fec00c1b82889d6706230de43d4b32db6fd2b666cb78c43", kill_on_drop: false }`
[INFO] [stdout] fac5d810ec7bbc6b5fec00c1b82889d6706230de43d4b32db6fd2b666cb78c43