[INFO] fetching crate anybar_rs 1.0.12...
[INFO] documenting anybar_rs-1.0.12 against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] extracting crate anybar_rs 1.0.12 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate anybar_rs 1.0.12 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 anybar_rs 1.0.12
[INFO] finished tweaking crates.io crate anybar_rs 1.0.12
[INFO] tweaked toml for crates.io crate anybar_rs 1.0.12 written to /workspace/builds/worker-6/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-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] d4acec43b18a4ea28b650867466d4fb6b09f35f8b4032bb03fd4999eebe429e1
[INFO] running `Command { std: "docker" "start" "-a" "d4acec43b18a4ea28b650867466d4fb6b09f35f8b4032bb03fd4999eebe429e1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d4acec43b18a4ea28b650867466d4fb6b09f35f8b4032bb03fd4999eebe429e1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d4acec43b18a4ea28b650867466d4fb6b09f35f8b4032bb03fd4999eebe429e1", kill_on_drop: false }`
[INFO] [stdout] d4acec43b18a4ea28b650867466d4fb6b09f35f8b4032bb03fd4999eebe429e1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] d4a7dfdbb367cc240b6c075060d438fa79694e78e6183fcbf65b8e523fab14ec
[INFO] running `Command { std: "docker" "start" "-a" "d4a7dfdbb367cc240b6c075060d438fa79694e78e6183fcbf65b8e523fab14ec", kill_on_drop: false }`
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]  Documenting anybar_rs v1.0.12 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.85s
[INFO] running `Command { std: "docker" "inspect" "d4a7dfdbb367cc240b6c075060d438fa79694e78e6183fcbf65b8e523fab14ec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d4a7dfdbb367cc240b6c075060d438fa79694e78e6183fcbf65b8e523fab14ec", kill_on_drop: false }`
[INFO] [stdout] d4a7dfdbb367cc240b6c075060d438fa79694e78e6183fcbf65b8e523fab14ec