[INFO] fetching crate background-jobs-server 0.4.0...
[INFO] documenting background-jobs-server-0.4.0 against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] extracting crate background-jobs-server 0.4.0 into /workspace/builds/worker-10/source
[INFO] validating manifest of crates.io crate background-jobs-server 0.4.0 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 background-jobs-server 0.4.0
[INFO] finished tweaking crates.io crate background-jobs-server 0.4.0
[INFO] tweaked toml for crates.io crate background-jobs-server 0.4.0 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded kv v0.7.0
[INFO] [stderr]   Downloaded async-zmq-derive v0.1.0
[INFO] [stderr]   Downloaded background-jobs-core v0.4.1
[INFO] [stderr]   Downloaded lmdb v0.8.0
[INFO] [stderr]   Downloaded async-zmq-types v0.2.0
[INFO] [stderr]   Downloaded tokio-zmq v0.8.0
[INFO] [stderr]   Downloaded futures-zmq v0.3.1
[INFO] [stderr]   Downloaded lmdb-sys v0.8.0
[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] 262c6643e5fd2ea590427df1a8d0ff5733a8690f99b0c962f75b97a9a7adfeca
[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" "262c6643e5fd2ea590427df1a8d0ff5733a8690f99b0c962f75b97a9a7adfeca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "262c6643e5fd2ea590427df1a8d0ff5733a8690f99b0c962f75b97a9a7adfeca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "262c6643e5fd2ea590427df1a8d0ff5733a8690f99b0c962f75b97a9a7adfeca", kill_on_drop: false }`
[INFO] [stdout] 262c6643e5fd2ea590427df1a8d0ff5733a8690f99b0c962f75b97a9a7adfeca
[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] a5ce28770d1067b13522c73c00e364865ac6bbf3ae4fc04866ff582ad1fa0427
[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" "a5ce28770d1067b13522c73c00e364865ac6bbf3ae4fc04866ff582ad1fa0427", kill_on_drop: false }`
[INFO] [stderr]    Compiling error-chain v0.10.0
[INFO] [stderr]    Compiling toml v0.2.1
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling lmdb-sys v0.8.0
[INFO] [stderr]     Checking toml v0.4.10
[INFO] [stderr]     Checking serde_json v1.0.57
[INFO] [stderr]     Checking tokio-uds v0.2.7
[INFO] [stderr]     Checking tokio-fs v0.1.7
[INFO] [stderr]     Checking tokio v0.1.22
[INFO] [stderr]    Compiling metadeps v1.1.2
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]    Compiling zmq-sys v0.8.3
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling zmq v0.8.3
[INFO] [stderr]     Checking async-zmq-types v0.2.0
[INFO] [stderr]     Checking lmdb v0.8.0
[INFO] [stderr]     Checking kv v0.7.0
[INFO] [stderr]     Checking background-jobs-core v0.4.1
[INFO] [stderr]    Compiling async-zmq-derive v0.1.0
[INFO] [stderr]     Checking tokio-zmq v0.8.0
[INFO] [stderr]  Documenting background-jobs-server v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 21.97s
[INFO] running `Command { std: "docker" "inspect" "a5ce28770d1067b13522c73c00e364865ac6bbf3ae4fc04866ff582ad1fa0427", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a5ce28770d1067b13522c73c00e364865ac6bbf3ae4fc04866ff582ad1fa0427", kill_on_drop: false }`
[INFO] [stdout] a5ce28770d1067b13522c73c00e364865ac6bbf3ae4fc04866ff582ad1fa0427